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Articles 61 - 90 of 218
Full-Text Articles in Entire DC Network
Ice, Ice, Baby! The Division Of Frozen Embryos At The Time Of Divorce, Meagan R. Marold
Ice, Ice, Baby! The Division Of Frozen Embryos At The Time Of Divorce, Meagan R. Marold
UC Law SF Journal on Gender and Justice
In the last few decades, advances in science have allowed many women to overcome issues of infertility and have provided a safeguard for women delaying childrearing while they focus on education and professional careers. Assisted Reproductive Technologies (ART) have given an answer to couples who, for one reason or another, could not conceive. However, ART has also brought about numerous legal issues, the most pressing of which is the disposition of embryos at the time of divorce. This article seeks to explore this emerging issue and address the ways in which state legislatures and courts have dealt with the issue …
Particle Swarm Optimization Using Multiple Neighborhood Connectivity And Winner Take All Activation Applied To Biophysical Models Of Inferior Colliculus Neurons, Brandon S. Coventry
Particle Swarm Optimization Using Multiple Neighborhood Connectivity And Winner Take All Activation Applied To Biophysical Models Of Inferior Colliculus Neurons, Brandon S. Coventry
Open Access Theses
Age-related hearing loss is a prevalent neurological disorder, affecting as many as 63% of adults over the age of 70. The inability to hear and understand speech is a cause of much distress in aged individuals and is becoming a major public health concern as age-related hearing loss has also been correlated with other neurological disorders such as Alzheimer's dementia. The Inferior Colliculus (IC) is a major integrative auditory center, receiving excitatory and inhibitory inputs from several brainstem nuclei. This complex balance of excitation and inhibition gives rise to complex neural responses, which are measured in terms of firing rate …
Evaluating The Utility Of Natural History Collections In Research And For The Public, Bethany L. Abrahamson
Evaluating The Utility Of Natural History Collections In Research And For The Public, Bethany L. Abrahamson
Biology ETDs
Natural history collections (NHCs) are useful in many fields of study, but knowledge about how they are used in the modern day is poor. The first part of this study, focused on the collections data held by the Museum of Southwestern Biology (MSB), analyzes specimen-based publications, specimen loan records, and guestbook information to determine how NHCs have been used in scientific study over time. Using a novel methodology, I objectively sorted the publications into ten research subjects via particular phrases found in publication titles, places of publication, and keywords. I observed from this dataset the proportions of particular subjects for …
Biology, Saint Mary's College Of California
A Grounded Theory Of Suicidality In Children Ten And Younger, Katherine Angela Heimsch
A Grounded Theory Of Suicidality In Children Ten And Younger, Katherine Angela Heimsch
Counseling & Human Services Theses & Dissertations
Once every two days in the United States, a child aged 5 to 14 years old dies by suicide (World Health Organization, 2010). When viewed on a spectrum that includes suicidal ideation, verbalizations, behaviors, and attempts, the problem of youth suicidality is actually far greater than the numbers of completed suicides suggest (Cheng, Tao, Riley, Kann, Ye, Tian...Hu, 2009). This study examined suicidality in children ages 10 and younger, and included the characteristics of suicidal children, factors that influence childhood suicidality, and treatment implications. The researcher conducted 12 semi-structured qualitative interviews with experienced treatment providers and performed a content analysis …
06-17-2014 Swosu Biology Student Wins National Award, Southwestern Oklahoma State University
06-17-2014 Swosu Biology Student Wins National Award, Southwestern Oklahoma State University
THE BARK ARCHIVE 2014
Southwestern Oklahoma State University biology student Lauren Blatzheim of Norman (North) recently won a national first-place award at the recent 2014 Beta Beta Beta national convention that took place in Erie (PA).
Reverse Protein Engineering Of Firefly Luciferase, Kahler Bugtong, Skyler Herczeg, Abraham Munoz, Alexandra Obata
Reverse Protein Engineering Of Firefly Luciferase, Kahler Bugtong, Skyler Herczeg, Abraham Munoz, Alexandra Obata
Bioengineering Senior Theses
Firefly luciferase is a bioluminescent protein commonly used as a bioluminescent tag in biological studies and applications. However, because the protein is fairly large in size, it is sometimes larger than the molecules it is intended to measure and is therefore not a sufficient tag in smaller applications. The active site of firely luciferase is also not well understood, making it difficult to engineer the protein without affecting its bioluminescent activity. In this paper, we discuss the experimental methods of Reverse Protein Engineering: a bioengineering technology that reduces the size of a protein while retaining its original function. This involves …
Exploring The Link Between Otolith Growth And Function Along The Biological Continuum In The Context Of Ocean Acidification, Eric D. Wilcox Freeburg
Exploring The Link Between Otolith Growth And Function Along The Biological Continuum In The Context Of Ocean Acidification, Eric D. Wilcox Freeburg
Graduate Doctoral Dissertations
Oceans are acidifying as atmospheric CO2 is drawn down. This process, known as ocean acidification (OA), is well known and documented. Over the next 100 years, pH of the surface ocean is projected to decrease by up to 0.35 units. This CO2 draw down has a direct effect on dissolved inorganic carbon (DIC) balance in the ocean. OA is expected to impact calcifying organisms that rely on constituencies of the DIC system, specifically carbonate ion [CO32-]. It is clear that externally calcified structures, such as coral skeletons, bivalve shells, etc., will be significantly affected as pH, …
Synthesis, Characterization And Study Biologicalactivity Of Several 1-Cyclopentene-1,2-Dicarboxylimidyl Containing Oxadiazole And Benzothiazole, Shetha. N. Alzubaidy, Mustafa A. Yasin, Omar A. Lateef, Hind F. Thamer
Synthesis, Characterization And Study Biologicalactivity Of Several 1-Cyclopentene-1,2-Dicarboxylimidyl Containing Oxadiazole And Benzothiazole, Shetha. N. Alzubaidy, Mustafa A. Yasin, Omar A. Lateef, Hind F. Thamer
Baghdad Science Journal
In this work involved prepared of several new 1-cyclopentene-1,2-dicarboxylimide linked to oxadiazole and benzothiazole moiety were synthesized by two steps: The first step 2-amino-substituted-1,3,4-oxadiazoles and substituted-2-aminobenzothiazole were reaction with 1-cyclopentene-1,2-dicarboxyl anhydride producing N-( 5- substituted-1,3,4-oxadiazole-2-yl)-1-cyclopentene-1,2-dicarboxyl amic acids and N-(Substitutedbenzothiazole-2-yl)-1-cyclopentene-1,2-dicarboxyl amic acids which in turn were dehydrated in the second step via fusion method to afford he desirable N-(5-substituted-1,3,4-oxadiazole-2-yl)-1-cyclopentene-1,2-dicarboxylimides and N-(Substituted benzothiazole-2-yl)1-cyclopentene-1,2-dicarboxylimides respectively. Structures of the prepared compounds were characterized by depending on FTIR, U.V spectral data which were in agreement with the proposed ones. Finally antibacterial activity of some of the prepared new cyclic imides were studied by two types …
Synthesis, Characterization And Antimicrobial Screening Of New Schiff Bases Linked To Phthalimidyl Phenyl Sulfonate Moiety, Ahlam M. Al-Azzawi, Marwa S. Abd Al-Razzak
Synthesis, Characterization And Antimicrobial Screening Of New Schiff Bases Linked To Phthalimidyl Phenyl Sulfonate Moiety, Ahlam M. Al-Azzawi, Marwa S. Abd Al-Razzak
Baghdad Science Journal
A series of Schiff bases linked to phthalimidyl phenyl sulfonate moiety have been synthesized via multistep synthesis. The first step involved reaction of phthalic anhydride with aniline producing N-phenyl phthalamic acid which was subsequently dehydrated to the corresponding N-phenyl phthalimide via treatment with acetic anhydride and anhydrous sodium acetate. The synthesized imide was treated with chlorosulfonic acid in the third step producing 4-(N-phthalimidyl) phenyl sulfonyl chloride which was introduced in reaction with 4-hydroxy acetophenone in the fourth step producing 4-[4-(N-phthalimidyl) phenyl sulfonate] acetophenone and this in turn was introduced successfully in condensation reaction with various aromatic primary amines affording the …
Synthesis And Characterization Of New Oxazine , Thiazine And Pyrazol Derived From Chalcones, Zainab Amer Sallal
Synthesis And Characterization Of New Oxazine , Thiazine And Pyrazol Derived From Chalcones, Zainab Amer Sallal
Baghdad Science Journal
In this study, chalcones were synthesis by condensing 2-acetylpyridine with aromatic aldehyde derivatives in dilute ethanolic potassium hydroxide solution at room temperature according to Claisen-Schmidt condensation. After that, new heterocyclic derivatives such as Oxazine, Thiazine and Pyrazol were synthesis by reaction between chalcones with urea, thiourea and hydrazine hydrate respectively scheme 1. All these compounds wrer characterization by FTIR, 1H-NMR spectroscopy and elemental analysis.
Functional Identification Of A Ligase In The Red Sea Atlantis Ii Deepest Layer, Mahera Mohammed
Functional Identification Of A Ligase In The Red Sea Atlantis Ii Deepest Layer, Mahera Mohammed
Theses and Dissertations
Red sea, described as one of the unique marine ecosystems, incorporates up to 25 deep-sea brine pools. These pools posses multiple extreme conditions influencing the evolution and survival of their inhabiting microbial community. The combination of maximum depth (2194 m), high temperature (68C), anoxia, high salinity (26%), high pressure and high concentrations of heavy metals in the lower convective layer (LCL) of the Atlantis II brine pool makes it an ideal environment for identification of novel enzymes with unique characteristics and potential biotechnological applications. Here we describe the identification and the preliminary in vivo functional investigation of the ligase domain …
A Simple And Effective Method For High Quality Co-Extraction Of Genomic Dna And Total Rna From Low Biomass Ectocarpus Siliculosus, The Model Brown Alga, M Greco, Ca Sáez, Mt Brown, Mb Bitonti
A Simple And Effective Method For High Quality Co-Extraction Of Genomic Dna And Total Rna From Low Biomass Ectocarpus Siliculosus, The Model Brown Alga, M Greco, Ca Sáez, Mt Brown, Mb Bitonti
School of Biological and Marine Sciences
The brown seaweed Ectocarpus siliculosus is an emerging model species distributed worldwide in temperate coastal ecosystems. Over 1500 strains of E. siliculosus are available in culture from a broad range of geographic locations and ecological niches. To elucidate the molecular mechanisms underlying its capacity to cope with different environmental and biotic stressors, genomic and transcriptomic studies are necessary; this requires the co-isolation of genomic DNA and total RNA. In brown algae, extraction of nucleic acids is hindered by high concentrations of secondary metabolites that co-precipitate with nucleic acids. Here, we propose a reliable, rapid and cost-effective procedure for the co-isolation …
Kraft Invited To Join National Study Section, Reporter Staff
Kraft Invited To Join National Study Section, Reporter Staff
Browse All News
No abstract provided.
Volume Cxxxi, Number 22, May 23, 2014, Lawrence University
Volume Cxxxi, Number 22, May 23, 2014, Lawrence University
The Lawrentian
No abstract provided.
The History Of Land Use On Alaska's Kenai River And Its Implications For Sustaining Salmon, Susan F. Loshbaugh
The History Of Land Use On Alaska's Kenai River And Its Implications For Sustaining Salmon, Susan F. Loshbaugh
Natural Resources
The Kenai River Watershed (KRW), in south-central Alaska, is famous for its salmon. Urbanization along the lower river damages habitat and stresses these valuable fish. Are the river's salmon runs sustainable if recent land-use trends continue? I used interdisciplinary approaches from environmental history and landscape science plus technologies such as geographic information systems (GIS) to describe the watershed's land-use history from 1947 to 2010 and to link land use and watershed management to the sustainability of salmon runs. Although the area appears wild compared to many salmon-producing watersheds in other states, it has a long history of intense use and …
Branching Into Rnai: Synthesis, Characterization And Biology Of Branch And Hyperbranch Sirnas, Anthony Muriithi Maina
Branching Into Rnai: Synthesis, Characterization And Biology Of Branch And Hyperbranch Sirnas, Anthony Muriithi Maina
Seton Hall University Dissertations and Theses (ETDs)
The cancer epidemic continues to afflict millions of humans world-wide each year and despite a renewed hope with the development of new and improved forms of therapy, a cure for cancer remains an elusive goal. This is partly related to the rise of resilient forms of tumors that have evolved with resistance towards conventional chemotherapy and radiation treatments. Moreover, these non-specific therapeutic regimens are highly toxic, leading to severe immunosuppressive effects which poisons the body and compromises the road towards remission. In an effort to mitigate these limitations, cancer-targeting approaches are currently experiencing a renaissance in the translation of new …
Evaluation Of The Design Of Komendant's Cycloidal, Thin Shell Roofs At The Kimbell Art Museum Using Finite Element Analysis, Mikhail Osanov
Evaluation Of The Design Of Komendant's Cycloidal, Thin Shell Roofs At The Kimbell Art Museum Using Finite Element Analysis, Mikhail Osanov
Honors Theses
The analysis of Komendant's design of the Kimbell Art Museum was carried out in order to determine the effectiveness of the ring beams, edge beams and prestressing in the shells of the roof system. Finite element analysis was not available to Komendant or other engineers of the time to aid them in the design and analysis. Thus, the use of this tool helped to form a new perspective on the Kimbell Art Museum and analyze the engineer's work. In order to carry out the finite element analysis of Kimbell Art Museum, ADINA finite element analysis software was utilized. Eight finite …
On Individual, Sex And Age Differentiation Of Indian House Crow (Corvus Splendens) Call: A Preliminary Study In Potohar, Pakistan, Waqas Hameed, Inayat Ullah, Safia Janjua, Fakhar -I- Abbas, Afsar Mian
On Individual, Sex And Age Differentiation Of Indian House Crow (Corvus Splendens) Call: A Preliminary Study In Potohar, Pakistan, Waqas Hameed, Inayat Ullah, Safia Janjua, Fakhar -I- Abbas, Afsar Mian
Journal of Bioresource Management
Considering importance of acoustics studies in population biology, 500 calls of the Indian House Crow (Corvus splendens) were recorded in morning - mid-afternoon hours (January-February, 2009) from 23 sites of urban areas of Potahar (Punjab, Pakistan). Calls were recorded using Sony CFS 1030 S sound records (sampling rate = 48 KHz) and edited using Sound Analysis Pro (Version 1.02). software using FFT method rate 50%, data window 9.27 ms, advanced window 1.36 ms. Through editing of calls, we selected 60 (37 ♂♂, 17 ♀♀, 6 Juvenile ♂♂) good quality spectrograms for detailed analysis. Spectrograms were characterized by rapid frequency modulations …
Status Of Demersal Finfish Stocks On The West Coast Of Australia, David V. Fairclough, Brett W. Molony, Brett M. Crisafulli, Ian S. Keay, Sybrand Alexander Hesp, Ross J. Marriott
Status Of Demersal Finfish Stocks On The West Coast Of Australia, David V. Fairclough, Brett W. Molony, Brett M. Crisafulli, Ian S. Keay, Sybrand Alexander Hesp, Ross J. Marriott
Fisheries Research Reports
Assessments of the key indicator species for the West Coast Demersal Scalefish Resource (WCDSR; West Australian dhufish Glaucosoma hebraicum, Snapper Pagrus auratus and Baldchin groper Choerodon rubescens) in 2007 and 2009 demonstrated that the stocks were experiencing overfishing. Thus, between late 2007 and early 2010, substantial changes were made to the management of the commercial and recreational fisheries that exploit the WCDSR. These were designed to reduce catches of the entire suite of demersal scalefish species (and of each indicator species) by both the commercial and recreational sectors in the West Coast Bioregion (WCB) by at least 50 % of …
Investigations Of Cho 1-15 And Silk Gland Cell Line Development, Susan Kathleen Robinson
Investigations Of Cho 1-15 And Silk Gland Cell Line Development, Susan Kathleen Robinson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The BioProcessing Demonstration and Training Laboratory was established with a collaboration between Utah State University and Thermo Fisher-Scientific, Inc. This lab was developed into a fully functioning tissue culture facility. Demonstration of tissue culture procedures were necessary for the lab to be industry-fully qualified. The CHO 1-15 cell line protocols were optimized by establishing conditions for reproducibility in shaker flasks and bioreactors (2 to 250 L capacity). CHO 1-15 is the cell line of choice for protein production in the bio-manufacturing industry. Oxidative stress is a problem in the industry because it can cause a decrease in protein production. Mesobiliverdin …
An Evaluation Of The East Indianapolis Food Desert, Angelina Qin
An Evaluation Of The East Indianapolis Food Desert, Angelina Qin
Undergraduate Honors Thesis Collection
The Indy East Food Desert (IEFD) appears to suffer from many common conditions noted by various scholars as food desert identifiers. Yet, its situation still remains unique. Though there is a prevalence of minority populations, low-income households, and low-education attainment levels, there are also factors of low-access, poor food options (within the limited food outlets in the neighborhoods), and poor eating habits which shape the situation of the community. In an attempt to alleviate the food desert problems, the Indy East Food Desert Coalition (IEFDC) was formed. IEFDC partnered with Butler University's Center for Urban Ecology in order to assess …
Using Stable Isotope Analysis To Study Altitudinal And Latitudinal Bat Migration, Lily Arias
Using Stable Isotope Analysis To Study Altitudinal And Latitudinal Bat Migration, Lily Arias
All-Inclusive List of Electronic Theses and Dissertations
The general lack of knowledge on basic aspects of the biology of temperate and tropical bats, their low reproductive rates, and threats such as white-nose syndrome, wind farms, and habitat loss, make them very susceptible to population declines. My research uses an innovative technique, the analysis of stable isotopes, to study the ecology of bat migration with the main goals of contributing significantly to the understanding of bat biology and assessing the conservation status and susceptibility of bats. In the first chapter, I measured the content of hydrogen isotopes in fur samples of migratory bat species killed at a wind …
Analysis Of Social Dominance In The Green Anole, Jordan Mckenzie Bush
Analysis Of Social Dominance In The Green Anole, Jordan Mckenzie Bush
Biology Honors Theses
Dominance relationships are an important aspect of the social organization of many species. Male dominance often results in successful territory defense and/or access to potential mates, and thus is a central component in establishing social rank. In this study, I used mathematical models to consider social interactions of the green anole lizard (Anolis carolinensis) in both territorial and hierarchical contexts. I then identified the behavioral and morphological traits associated with dominance in this species.
I first analyzed a series of ranking algorithms to evaluate their effectiveness as a novel approach to quantifying animal social status. I found that all eight …
Bio Roll-Up: Self-Assembling Scaffolds For Tissue Engineering, Chase Austyn Brisbois
Bio Roll-Up: Self-Assembling Scaffolds For Tissue Engineering, Chase Austyn Brisbois
Nanoscale Science & Engineering (discontinued with class year 2014)
There is an unmet need for controlled, dynamic cell scaffolds that will generate 3-D monolayers of epithelial cells for medical research and tissue engineering. Here we describe a system that uses photoimageable and biocompatible HEMA-based hydrogel bilayers that self-assemble from 2-D substrates into 3-D tube-shaped structures. These structures are patterned on top of another layer that demonstrates an ability to anchor the assembled structure and control the direction and extent of selfassembly. Cell viability was determined by MTT assay which shows material components comparable with the positive control (80-110%). Finally, the masks used in the experiments herein were redesigned to …
Inkjet Printing Of Three-Dimensional Vascular-Like Constructs From Cell Suspensions, Changxue Xu
Inkjet Printing Of Three-Dimensional Vascular-Like Constructs From Cell Suspensions, Changxue Xu
All Dissertations
Inkjet printing has found an increasing number of biofabrication applications, specifically organ printing, which has been emerging as a promising solution to the organ donor shortage. While some studies have been conducted to investigate various engineering problems associated with DOD inkjet printing of biological material-based fluids, the pinch-off, the cell-laden droplet formation, the effects of electric field on droplet formation, and challenges in 3D vascular-like construct fabrication haven't been systematically investigated. The objective of this study is to investigate the pinch-off, the cell-laden droplet formation, the effects of electric field on droplet formation, and manufacturing challenges during fabrication using DOD …
Synthesis Of N-Heterocycles Through Cyclization-Triggered Tandem Additions To Alkynes And The Study Of Promoters In Ionic Reactions., Junbin Han
Electronic Theses and Dissertations
Our research mainly focused on three parts related to the rapid construction of N-heterocycles and the search for ionic reaction promoters. First, N-heterocycles of different ring sizes and with different substitution patterns constitute extremely important structure classes (e.g., alkaloids) in the search for bioactivity. A contemporary challenge in organic synthesis is the mapping of new chemical spaces through tandem or cascade reactions in an atom economical fashion. Our strategy to access these biologically important heterocycles is through a cyclization-triggered tandem addition to alkynes catalyzed by readily available alkynophilic coinage metals like copper. In this manner, a variety of functional groups …
Development Of A Light-Powered Microstructure : Enhancing Thermal Actuation With Near-Infrared Absorbent Gold Nanoparticles., Thomas Matthew Lucas
Development Of A Light-Powered Microstructure : Enhancing Thermal Actuation With Near-Infrared Absorbent Gold Nanoparticles., Thomas Matthew Lucas
Electronic Theses and Dissertations
Development of microscale actuating technologies has considerably added to the toolset for interacting with natural components at the cellular level. Small-scale actuators and switches have potential in areas such as microscale pumping and particle manipulation. Thermal actuation has been used with asymmetric geometry to create large deflections with high force relative to electrostatically driven systems. However, many thermally based techniques require a physical connection for power and operate outside the temperature range conducive for biological studies and medical applications. The work presented here describes the design of an out-of-plane bistable switch that responds to near-infrared light with wavelength-specific response. In …
Understanding The Influence Of Interfacial Chemistry In Core, Core/Shell And Core/Shell/Shell Quantum Dots On Their Fluorescence Properties, Omondi Bernard Omogo
Understanding The Influence Of Interfacial Chemistry In Core, Core/Shell And Core/Shell/Shell Quantum Dots On Their Fluorescence Properties, Omondi Bernard Omogo
Graduate Theses and Dissertations
Colloidal semiconductor nanocrystals (quantum dots) have received a great deal of attention due to their superior size tunable properties and promising applications in many areas. Some of the most practical areas of their applications include light emitting diodes (LED), photovoltaic and biological studies. Synthetic methods of these crystals is becoming more established with new strategies being reported every now and then. However, quantitative studies connecting the processes at the interface, namely core-ligand, core-shell and shell-shells, to the overall quantum dots fluorescence properties are not well understood. Specifically for cores, relating surface-atoms interactions, solvents, ligands nature, density and functional groups on …
Corrosion Assessment And Enhanced Biocompatibility Analysis Of Biodegradable Magnesium-Based Alloys, Luis Enrique Pompa
Corrosion Assessment And Enhanced Biocompatibility Analysis Of Biodegradable Magnesium-Based Alloys, Luis Enrique Pompa
Theses and Dissertations - UTB/UTPA
Magnesium alloys have raised immense interest to many researchers because of its evolution as a new third generation material. Due to their biocompatibility, density, and mechanical properties, magnesium alloys are frequently reported as prospective biodegradable implant materials. Moreover, magnesium based alloys experience a natural phenomena to biodegrade in aqueous solutions due to its corrosive activity, which is excellent for orthopedic and cardiovascular applications. However, major concerns with such alloys are fast and non-uniform corrosion degradation. Controlling the degradation rate in the physiological environment determines the success of an implant. In this investigation, three grades of magnesium alloys: AZ31B, AZ91E and …