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2014

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Why Motives Matter: Reframing The Crowding Out Effect Of Legal Incentives, Emad H. Atiq Jan 2014

Why Motives Matter: Reframing The Crowding Out Effect Of Legal Incentives, Emad H. Atiq

Cornell Law Faculty Publications

Legal rules and regulations are routinely rationalized by appeal to the incentives they create. This Note examines an important but misunderstood fact about incentives - namely, that they often "crowd out" the natural motivations that citizens have to engage in socially valued behavior, such as a sense of civic duty, a commitment to personal growth, and charity towards others. The "crowding out effect" of incentives has traditionally been viewed as problematic because of cases where it renders incentives counter-productive - when fear of legal sanction or desire for financial reward substitutes for other forms of motivation in agents, this often …


Religious Exceptionalism And Human Rights, Laura S. Underkuffler Jan 2014

Religious Exceptionalism And Human Rights, Laura S. Underkuffler

Cornell Law Faculty Publications

The liberal-democratic governmental compact assures that citizenship, political power, and civic participation in all of its forms will be afforded to all citizens on an equal basis. In particular, simple identity—as a presumptive matter—cannot be the basis for the denial of human rights. It is on this simple yet elegant principle that all civil-rights laws are founded.

Freedom of religion presents a particularly complex problem in this context. On the one hand, it is—itself—a universally recognized member of the human rights family, and is protected under civil-rights laws. On the other hand, it is— because of its possible invocation by …


Self-Reported Strengths And Weaknesses In The Prediction Of Institutional Aggression, Sarah A. Demarco Jan 2014

Self-Reported Strengths And Weaknesses In The Prediction Of Institutional Aggression, Sarah A. Demarco

PCOM Psychology Dissertations

Aggression on inpatient psychiatric units poses a multitude of issues not only for patients, but also for staff. Thus, the identification of dynamic risk factors that may increase and also of protective factors that may decrease the likelihood of a patient becoming aggressive is important. The current study sought to expand on the current literature by examining if there is a difference between self-perceived strengths and risk factors between aggressive and nonaggressive patients. More specifically, it was hypothesized that self-reported strengths would moderate the relationship between self-reported risk factors and institutional aggression (IA) in forensic and in civil psychiatric units …


Relationship Of Therapist Beliefs And Competence In Predoctoral Clinical Psychology Trainees, Kaycee Begalu Jan 2014

Relationship Of Therapist Beliefs And Competence In Predoctoral Clinical Psychology Trainees, Kaycee Begalu

PCOM Psychology Dissertations

This study utilized a prospective, multi-group cohort, correlational design to examine the relationship between clinical psychology trainees’ beliefs related to themselves and the role of being a psychotherapist and the factors associated with objectively-rated and self-rated measures of clinical competence. The participants in this study were pre-doctoral graduate students currently enrolled in a Doctor of Psychology (Psy.D.) Clinical Psychology Program. All were in the first through fourth years of the five year program. Results indicated there were not significant differences between first, second, third and fourth year students in terms of irrational beliefs. There were no significant differences between students …


Attention-Deficit Hyperactivity Disorder: Teachers' Perceptions And Acceptability Of Interventions, Betti Stanco Vitanza Jan 2014

Attention-Deficit Hyperactivity Disorder: Teachers' Perceptions And Acceptability Of Interventions, Betti Stanco Vitanza

PCOM Psychology Dissertations

The purpose of this study was to examine elementary and middle school teachers’ perceptions of attention deficit/ hyperactivity disorder (ADHD) and acceptability of interventions commonly used in the treatment of ADHD. Eighty-one teachers from three elementary schools and one middle school participated in this study by completing an online survey containing the Perception of Attention Deficit Disorder Survey (PADDS) and Intervention Acceptability Survey (IAS). Results indicate that teachers feel adequately trained on the topic of ADHD and feel confident when implementing interventions for students with ADHD; however, teachers would like to receive additional in-service training on the topic of ADHD. …


Breast Health And Access To Care In The Kentucky Women's Health Registry, Sarah Yeiser Jan 2014

Breast Health And Access To Care In The Kentucky Women's Health Registry, Sarah Yeiser

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Breast cancer is the second leading cause of death (14%) among all cancers in women in Kentucky.1 In 2010 the United States incident rates of breast cancer in white women were 122.6 per 100,000, and 118 per 100,000 in black women.2 Although breast cancer is diagnosed more in white women, black women are more likely to die from breast cancer and usually have more advanced stages of breast cancer upon diagnosis.2 In Kentucky from 2003-2007 the age-adjusted breast cancer mortality rate was 23.6 per 100,00 in white women and 32.8 per 100,000 black women. Black women die from breast cancer …


Impact Of Routine Immunization Coverage In Controlling Measles And Progressing Toward The Introduction Of Rubella Containing Vaccine: A Comparison Study Between Rwanda And Uganda, Carmen Kupangi Dibaya Jan 2014

Impact Of Routine Immunization Coverage In Controlling Measles And Progressing Toward The Introduction Of Rubella Containing Vaccine: A Comparison Study Between Rwanda And Uganda, Carmen Kupangi Dibaya

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Despite the existence of safe and effective vaccines, measles and rubella present a major public health problem in many developing countries, disproportionally affecting low-income populations.1-3 Indeed, measles and rubella remain two of the leading causes of death and congenital defects in children worldwide.4-6 In 2008, an estimated 10 million new cases and 164,000 deaths were reported from measles alone.3 During the same time period, the United Nations International Children's Emergency Fund (UNICEF) reported an estimated 110,000 cases of Congenital Rubella Syndrome (CRS) in developing countries, with the continent of Africa shouldering 38% of the disease burden.7 Measles is a highly …


An Evaluation Of Three Positive Parenting Practices And Their Combined Impact On Developmental, Social, Or Behavioral Delays In Children Ages 1-5 In The United States, Sarah Cprek Jan 2014

An Evaluation Of Three Positive Parenting Practices And Their Combined Impact On Developmental, Social, Or Behavioral Delays In Children Ages 1-5 In The United States, Sarah Cprek

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Objectives: (1) Determine whether three individual positive parenting practices (PPP) – reading to children, engaging in storytelling or singing, and eating meals together as a family – decrease the risk of developmental, behavioral, or social delays among children between the ages of 1-5 years in the United States. (2) Determine if a combination of these parenting practices has an additive effect on the outcome. Methods: Multiple logistic regression and chi-square analyses were used to analyze data from the National Survey of Children’s Health 2011/2012 in regards to the relationship between each of the three individual PPP as well as a …


Distribution Of Wildlife Rabies In Central Appalachia And Analysis Of Factors Influencing Human Exposure, Sara J. Reilly Jan 2014

Distribution Of Wildlife Rabies In Central Appalachia And Analysis Of Factors Influencing Human Exposure, Sara J. Reilly

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Abstract Background: The rabies virus is a Lyssavirus of the family Rhabdoviridae which affects all mammals and causes progressive encephalomyelitis that is fatal in nearly one hundred percent of untreated cases. In the United States, wildlife act as the primary reservoir for rabies and prevention, surveillance, and control costs remain high. The purpose of this study is to understand the current distribution of wildlife rabies in Central Appalachia, as well as identify any demographic or geographic factors which may affect the risk of human exposure at the county level. Methods: A spatial statistical analysis using StatScan was performed to identify …


Examination Of The Prevalence And Mediating Factors Of Diabetes Diagnoses In Kentucky Women With A History Of Gestational Diabetes, Courtney Danielle Ryan Jan 2014

Examination Of The Prevalence And Mediating Factors Of Diabetes Diagnoses In Kentucky Women With A History Of Gestational Diabetes, Courtney Danielle Ryan

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Diabetes mellitus (DM) is an overwhelming health issue in the United States affecting 25.8 million people, which is equivalent to 8.3% of the population.1 It is the seventh leading cause of death and a major cause of serious complications such as heart disease, stroke, kidney failure, nontraumatic lower limb amputations, and new causes of blindness among adults in the U.S.1 Paralleling the obesity epidemic, the rates of DM incidence and prevalence continue to rise each year.2 One particularly troubling public health issue related to DM is that over a quarter of the people who have this disease are unaware, even …


Preparation, Characterization, And Delivery Of Antibodies Binding To A Model Oncogenic Rna, Human Initiator Trna, Jennifer Archer Jan 2014

Preparation, Characterization, And Delivery Of Antibodies Binding To A Model Oncogenic Rna, Human Initiator Trna, Jennifer Archer

Electronic Theses and Dissertations

Non-coding RNAs (ncRNAs) account for a higher percent of the genome than coding mRNAs, and are implicated in human disease such as cancer, neurological, cardiac and many others. While the majority of ncRNAs involved in disease were originally attributed to a class of RNAs called micro RNAs (miRNAs) with a small size of only about 19 -24 base pairs, emerging research has now demonstrated a class of long non-coding RNAs (lncRNAs) that have a size of over 200 base pairs to be responsible for gene regulation and other functional roles and have also found to contribute to pathogenesis in humans. …


A Phenomenological Analysis Of Undergraduate Teaching In The United States And The United Kingdom From The Perspective Of Current And Former Exchange Students, Barry Griffiths Jan 2014

A Phenomenological Analysis Of Undergraduate Teaching In The United States And The United Kingdom From The Perspective Of Current And Former Exchange Students, Barry Griffiths

Electronic Theses and Dissertations

While once almost indistinguishable, the systems of higher education in the United States and the United Kingdom have diverged during the past 200 years to the point where today there are few similarities. However, due to increasing globalization and the growing ubiquity of the internet, many contemporary issues in higher education are often faced by institutions across the globe. After detailing the historical role of scholarship and teaching in the two countries, this study concentrates on two aspects that have been extensively researched in recent years, namely the role of technology in the classroom and the balance that many modern …


The Role Of Lim Kinase 1 And Its Substrates In Cell Cycle Progression, Lisa Ritchey Jan 2014

The Role Of Lim Kinase 1 And Its Substrates In Cell Cycle Progression, Lisa Ritchey

Electronic Theses and Dissertations

LIM Kinase 1 (LIMK1), a modulator of actin and microtubule dynamics, has been shown to be involved in cell cycle progression. In this study we examine the role of LIMK1 in G1 phase and mitosis. We found ectopic expression of LIMK1 resulted in altered expression of p27Kip1, the G1 phase Cyclin D1/Cdk4 inhibitor. Overexpression of LIMK1 resulted in lower levels of p27Kip1 and p27Kip1-pY88 (inactive p27Kip1). Knockdown of LIMK1 resulted in elevated levels of p27Kip1 and p27Kip1-pY88. Together, these results suggest LIMK1 regulates progression of G1 phase through modulation of p27Kip1 expression. LIMK1 is involved in the mitotic process through …


Creating Constructs Through Categorization: Gender And Race, Joshua Simpkins Jan 2014

Creating Constructs Through Categorization: Gender And Race, Joshua Simpkins

Electronic Theses and Dissertations

In U.S. society, the systems of gender and race operate to privilege and oppress individuals based on their location within these systems. All of the interactions an individual experiences as they go about their day-to-day lives are shaped by these interlocking systems. As a result, there is an extensive body of sociological literature addressing how individuals in U.S. society are privileged and oppressed on the basis of their perceived membership in gender and race categories; however, relatively little research exists examining how individuals come to be seen by others as members of gender and race categories in the first place. …


Reconciling Order And Progress: Auguste Comte, Gustave Le Bon, Emile Durkheim, And The Development Of Positivism In France, 1820-1914, Khali Navarro Jan 2014

Reconciling Order And Progress: Auguste Comte, Gustave Le Bon, Emile Durkheim, And The Development Of Positivism In France, 1820-1914, Khali Navarro

Electronic Theses and Dissertations

This thesis discusses the philosophy of positivism in nineteenth century France. Based on an empirical vision of society, positivism advocated values of rationality, progress, and secularization. In that way, it stood as one of the defining systems of thought of the modern era. I discuss, however, an undercurrent of anxiety about those same values. Positivism's founder, Auguste Comte, argued that all sciences would become unified and organized under universal principles and empirical standards. He viewed the human mind as becoming more rationalized throughout history. In his later career, however, he argued that rationalism was a destructive force and that a …


Treatment-Specific Approaches For Analysis And Control Of Left Ventricular Assist Devices, George Faragallah Jan 2014

Treatment-Specific Approaches For Analysis And Control Of Left Ventricular Assist Devices, George Faragallah

Electronic Theses and Dissertations

A Left Ventricular Assist Device (LVAD) is a mechanical pump that helps patients with heart failure conditions. This rotary pump works in parallel to the ailing heart and provides an alternative path for blood flow from the weak left ventricle to the aorta. The LVAD is controlled by the power supplied to the pump motor. An increase in the pump motor power increases the pump speed and the pump flow. The LVAD is typically controlled at a fixed setting of pump power. This basically means that the controller does not react to any change in the activity level of the …


Multifunctional, Multimaterial Particle Fabrication Via An In-Fiber Fluid Instability, Joshua Kaufman Jan 2014

Multifunctional, Multimaterial Particle Fabrication Via An In-Fiber Fluid Instability, Joshua Kaufman

Electronic Theses and Dissertations

Spherical micro- and nano-particles have found widespread use in many various applications from paint to cosmetics to medicine. Due to the multiplicity of desired particle material(s), structure, size range, and functionality, many approaches exist for generating such particles. Bottom-up methods such as chemical synthesis have a high yield and work with a wide range of materials; however, these processes typically lead to large polydispersity and cannot produce structured particles. Top-down approaches such as microfluidics overcome the polydispersity issue and may produce a few different structures in particles, but at lower rates and only at the micro-scale. A method that can …


Quantitative Scanning Transmission Electron Microscopy Of Thick Samples And Of Gold And Silver Nanoparticles On Polymeric Surfaces, Aniruddha Dutta Jan 2014

Quantitative Scanning Transmission Electron Microscopy Of Thick Samples And Of Gold And Silver Nanoparticles On Polymeric Surfaces, Aniruddha Dutta

Electronic Theses and Dissertations

Transmission Electron Microscopy (TEM) is a reliable tool for chemical and structural studies of nanostructured systems. The shape, size and volumes of nanoparticles on surfaces play an important role in surface chemistry. As nanostructured surfaces become increasingly important for catalysis, protective coatings, optical properties, detection of specific molecules, and many other applications, different techniques of TEM can be used to characterize the properties of nanoparticles on surfaces to provide a path for predictability and control of these systems. This dissertation aims to provide fundamental understanding of the surface chemistry of Electroless Metallization onto Polymeric Surfaces (EMPS) through characterization with TEM. …


Can The Raped Woman Speak?, Zainab El-Mansi Jan 2014

Can The Raped Woman Speak?, Zainab El-Mansi

Dentistry

Rape has been known since the dawn of history as a method by which women were subjugated to the power of men. This horrid experience has always been silenced for several reasons which will be investigated in this book. Literature has always been able to uncover what is barred from expression; hence, part of this book is dedicated to surveying the different literary representations of this traumatic experience. What this book is concerned with is war rape, as it gains further connotations during wars and political conflicts. War rape is depicted in the two literary texts of analysis here: Coetzee's …


Effect Of Dietary Exposure To Ergot Alkaloids On Contractility Of Bovine Mesenteric Vasculature And Rumen Motility, Amanda M. Egert Jan 2014

Effect Of Dietary Exposure To Ergot Alkaloids On Contractility Of Bovine Mesenteric Vasculature And Rumen Motility, Amanda M. Egert

Theses and Dissertations--Animal and Food Sciences

Endophyte-infected (E+) tall fescue grass has been associated with fescue toxicosis, a costly syndrome characterized by poor cattle performance and health resulting in significant production losses. The fungal endophyte produces ergot alkaloids, which help the grass thrive in poor conditions but are toxic to mammals. A number of symptoms of fescue toxicosis can be related to vasoconstriction of bovine core, peripheral, and foregut vasculature. The first part of this series of experiments demonstrated ergot alkaloids were also vasoactive in midgut vasculature, with the exception of lysergic acid. Additionally, prior dietary exposure to ergot alkaloids decreased the contractile response of mesenteric …


Interaction Of Isoflavones And Endophyte-Infected Tall Fescue Seed Extract On Vasoactivity Of Bovine Mesenteric Vasculature, Yang Jia Jan 2014

Interaction Of Isoflavones And Endophyte-Infected Tall Fescue Seed Extract On Vasoactivity Of Bovine Mesenteric Vasculature, Yang Jia

Theses and Dissertations--Animal and Food Sciences

Endophyte-infected tall fescue produces many ergot alkaloids, which have been shown to be vasoconstrictive in various vessel types of bovine. On the other hand, substantial evidence has been reported on the vasodilative effects of formononetin and biochanin A in different vessel types in humans and rats. So, a study was conducted using mesenteric vasculature collected from heifers shortly after slaughter. After 2-h incubation with formononetin (F), biochanin A (B), or an ergovaline-containing tall fescue seed extract (EXT) and their combinations, vessels were mounted in a multi-myograph to determine their ergotamine-induced contractility. Results indicated that F and B at 1 × …


Effect Of Direct-Fed Microbials And Monensin On In Vitro Rumen Fermentation, Sheryl Wingard Jan 2014

Effect Of Direct-Fed Microbials And Monensin On In Vitro Rumen Fermentation, Sheryl Wingard

Theses and Dissertations--Animal and Food Sciences

The impact of supplying a mixed culture of lactate producing bacteria on in-vitro rumen fermentation of forage- (Experiment 1) and concentrate- (Experiment 2) based diets in the presence and absence of monensin was explored. In experiment 1, interactions between DFM and MON were absent (P>0.10) for gas production and fermentative end products. Gas production and fermentative end products were unaffected by DFM alone (P>0.10). Monensin decreased (P<0.001) CH4 and NH3 production, rate and total gas production, as well as total VFA concentration and molar proportions of acetate and butyrate. However, MON increased (P<0.001) proportions of propionate, valerate, isobutyrate and isovalerate. Independently, DFM and MON increased (P<0.001) end point pH. In experiment 2, DFM x MON interactions or tendencies (P=0.07, P<0.01, P<0.01) were present, DFM effects were abated by MON, for rate, total gas production and total VFA concentrations. Acetate:propionate ratio was decreased (P<0.01) with MON and was unaffected by DFM. Ammonia-N concentration was increased (P<0.01) by DFM and unaffected (P=0.75) by MON. Both DFM and MON treatment increased (P<0.01) ruminal pH levels. These studies suggest the effects of DFM and MON of in-vitro fermentation are …


Evaluating Dietary Amino Acid Adequacy In Horses Using Isotopic Techniques, Sara L. Tanner Jan 2014

Evaluating Dietary Amino Acid Adequacy In Horses Using Isotopic Techniques, Sara L. Tanner

Theses and Dissertations--Animal and Food Sciences

Little is known about amino acid (AA) requirements in horses despite muscle mass accretion being of importance to an athletic species. Isotope methods for determining AA requirements and whole-body protein synthesis (WBPS) had not been previously used in growing horses. The first study herein was the first to apply isotope methods to determine WBPS in growing horses. In the study, weanling colts received two different levels of crude protein. Whole-body protein kinetics indicated that WBPS was greater when the weanlings were fed the diet with a greater crude protein content (P<0.05). The second study sought to determine a lysine requirement for yearling horses using the indicator AA oxidation (IAAO) method. Despite using six dietary levels of lysine; three above and three below the current recommendation, no breakpoint could be determined. Phenylalanine kinetics were not affected by lysine level (P>0.05), but plasma lysine increased linearly with lysine intake …


Impacts Of The Recovery Movement On Treatment Adherence For Individuals With Schizophrenia Spectrum Disorders, Kelly J. Campanile Jan 2014

Impacts Of The Recovery Movement On Treatment Adherence For Individuals With Schizophrenia Spectrum Disorders, Kelly J. Campanile

PCOM Psychology Dissertations

The recovery movement presents a shift in the treatment of severe mental illness to a more person-centered approach. The current researcher hypothesized that the more recovery-oriented a treatment was perceived to be, the more participants would have attended appointments and adhered to their psychiatric medication regimen. The variables of empowerment, recovery assessment, attitudes toward treatment, and participatory decision-making were explored in relation to their possible correlation with increased treatment adherence. An archival data set was used. Participants included 215 adults who met criteria for a schizophrenia spectrum disorder. The participants generally rated their treatment as high on all four of …


When Books Went To War, Molly Guptill Manning Jan 2014

When Books Went To War, Molly Guptill Manning

Books

When America entered World War II in 1941, we faced an enemy that had banned and burned over 100 million books and caused fearful citizens to hide or destroy many more. Outraged librarians launched a campaign to send free books to American troops and gathered 20 million hardcover donations. In 1943, the War Department and the publishing industry stepped in with an extraordinary program: 120 million small, lightweight paperbacks, for troops to carry in their pockets and their rucksacks, in every theater of war.

Comprising 1,200 different titles of every imaginable type, these paperbacks were beloved by the troops and …


Perceptions Of The Counseling Profession: From Health Science Graduate Faculty And Students, Kaprea F. Johnson, Christianne Fowler, Karen Kott, Margaret Lemaster Jan 2014

Perceptions Of The Counseling Profession: From Health Science Graduate Faculty And Students, Kaprea F. Johnson, Christianne Fowler, Karen Kott, Margaret Lemaster

Ellmer School of Nursing Faculty Publications

Counseling is considered a newer healthcare profession and possibly unknown to others. This study uses a post-positivist phenomenological approach exploring healthcare faculty and students' perceptions of counseling professionals after participating in a semester long interprofessional health promotions and maintenance course. Results indicated most professions are unaware of counselors, their scope of practice, and their benefit to interprofessional teams. Participants showed growth in their knowledge. Results indicate the importance of interprofessional education and need for advocacy awareness.


Exposure To Endocrine Disrupting Chemicals And Male Reproductive Health, Hueiwang Anna Jeng Jan 2014

Exposure To Endocrine Disrupting Chemicals And Male Reproductive Health, Hueiwang Anna Jeng

Community & Environmental Health Faculty Publications

Endocrine disrupting chemicals (EDCs) can interfere with normal hormonal balance and may exert adverse consequences on humans. The male reproductive system may be susceptible to the effects of such environmental toxicants. This review discusses the recent progress in scientific data mainly from epidemiology studies on the associations between EDCs and male reproductive health and our understanding of possible mechanisms associated with the effects of EDCs on male reproductive health. Finally, the review provides recommendations on future research to enhance our understanding of EDCs and male reproductive health. The review highlights the need for (1) well-defined longitudinal epidemiology studies, with appropriately …


A Coupled Geochemical And Biogeochemical Approach To Characterize The Bioreactivity Of Dissolved Organic Matter From A Headwater Stream, Rachel L. Sleighter, Rose M. Cory, Louis A. Kaplan, Hussain A.N. Abdulla, Patrick G. Hatcher Jan 2014

A Coupled Geochemical And Biogeochemical Approach To Characterize The Bioreactivity Of Dissolved Organic Matter From A Headwater Stream, Rachel L. Sleighter, Rose M. Cory, Louis A. Kaplan, Hussain A.N. Abdulla, Patrick G. Hatcher

Chemistry & Biochemistry Faculty Publications

The bioreactivity or susceptibility of dissolved organic matter (DOM) to microbial degradation in streams and rivers is of critical importance to global change studies, but a comprehensive understanding of DOM bioreactivity has been elusive due, in part, to the stunningly diverse assemblages of organic molecules within DOM. We approach this problem by employing a range of techniques to characterize DOM as it flows through biofilm reactors: dissolved organic carbon (DOC) concentrations, excitation emission matrix spectroscopy (EEMs), and ultrahigh resolution mass spectrometry. The EEMs and mass spectral data were analyzed using a combination of multivariate statistical approaches. We found that 45% …


Wavelength And Temperature-Dependent Apparent Quantum Yields For Photochemical Formation Of Hydrogen Peroxide In Seawater, David J. Kieber, Gary W. Miller, Patrick J. Neale, Kenneth Mopper Jan 2014

Wavelength And Temperature-Dependent Apparent Quantum Yields For Photochemical Formation Of Hydrogen Peroxide In Seawater, David J. Kieber, Gary W. Miller, Patrick J. Neale, Kenneth Mopper

Chemistry & Biochemistry Faculty Publications

Wavelength and temperature-dependent apparent quantum yields (AQYs) were determined for the photochemical production of hydrogen peroxide using seawater obtained from coastal and oligotrophic stations in Antarctica, the Pacific Ocean at Station ALOHA, the Gulf of Mexico, and at several sites along the East Coast of the United States. For all samples, AQYs decreased exponentially with increasing wavelength at 25 °C, ranging from 4.6 × 10−4 to 10.4 × 10−4 at 290 nm to 0.17 × 10−4 to 0.97 × 10−4 at 400 nm. AQYs for different seawater samples were remarkably similar irrespective of expected differences in the composition and concentrations …


Synthesis And Characterization Of Ph Responsive D-Glucosamine Based Molecular Gelators, Navneet Goyal, Hari P.R. Mangunuru, Bargav Parikh, Sonu Shrestha, Guijun Wang Jan 2014

Synthesis And Characterization Of Ph Responsive D-Glucosamine Based Molecular Gelators, Navneet Goyal, Hari P.R. Mangunuru, Bargav Parikh, Sonu Shrestha, Guijun Wang

Chemistry & Biochemistry Faculty Publications

Small molecular gelators are a class of compounds with potential applications for soft biomaterials. Low molecular weight hydrogelators are especially useful for exploring biomedical applications. Previously, we found that 4,6-O-benzylidene acetal protected D-glucose and D-glucosamine are well-suited as building blocks for the construction of low molecular weight gelators. To better understand the scope of D-glucosamine derivatives as gelators, we synthesized and screened a novel class of N-acetylglucosamine derivatives with a p-methoxybenzylidene acetal protective group. This modification did not exert a negative influence on the gelation. On the contrary, it actually enhanced the gelation tendency for many derivatives. The …