Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 280 for “"withdrawing"”.
-
Prediction of freshmen withdrawing from an emerging state university
The primary purpose of this study is to investigate and modify an instrument by which the prediction of high risk withdrawal students can be accomplished at an emerging state university. The study utilized 334 members of the freshman class at the state university. Study participants received no …
-
Distress and Caregiver Appraisal in Pediatric Critical Care Unit Nurses when Withdrawing Life-Sustaining Treatment
… nurses’ distress and caregiver appraisal when withdrawing life-sustaining treatment (LST) is being considered. Internal appraisal factors and nurses’ distress are substantiated in multiple studies, and this information could ultimately contribute to interventions for nurses working with …
-
Opinions of registered dietitians on the withholding and withdrawing of food and fluid in the terminally ill
… of dietitians regarding the withholding and withdrawing of nutritional support in terminally ill patients. In addition, the role of the dietitian in feeding the terminally ill individual was researched. A mailed questionnaire was sent to 414 registered dietitians employed by the Marriott …
-
Withdrawing Empire: A Test of Structural Realism and Neoclassical Realism to Explain the Withdrawal of US Military Presence
Little work has been done to explain why the United States, a great power, would willingly withdraw its military presence from a much smaller country. In this thesis I attempt to explain why this happens in three cases by testing two major International Relations theories, Structural Realism and …
-
An Exploratory Data Analysis of Reasons Hispanic Parents Give for Withdrawing or Denying Permission for Their Limited English Proficient Children to Participate in Transitional Bilingual Education Programs
… English proficient (LEP) students, give for withdrawing or denying permission for their LEP children to participate in transitional bilingual education programs. Secondly, this study provided an analysis of these parents' modes and extent of participation in the education of their LEP …
-
Synthesis, Properties, and Reactivity of Pentafluorophenyl Substituted Cyclopentadienes and Their Transition Metal Complexes
… a wide range of electron-donating and electron-withdrawing groups. Unfortunately, most of the available electron-withdrawing groups suffer from problems with Cp ligand synthesis, Cp anion stability, and electron-withdrawing group stability under catalytic conditions. This dissertation shows that …
-
Modifying electronic and solid-state properties of fullerenes, polycyclic aromatic hydrocarbons, and perylene diimides
… with strong perfluoroalkyl or cyano electron-withdrawing groups for fundamental studies in the development of advanced electronics. The first chapter focuses on the synthesis and characterization of new trifluoromethylfullerene derivatives. Synthetic methods for adding CF3 groups to C60, C70, …
-
Student Retention: Finding the Missing Perspective
… study was designed to better understand non-withdrawing student leavers. An exploratory research design was utilized which consisted of pilot interviews and a survey. The pilot interviews in this study consisted of five on-campus Fall 2005 undergraduate student leavers. Leaver insight from …
-
Variables That Predict Success With Associate Degree Nursing Students At A Community College In Florida
… (a) passing group, (b) failing group, or (c) withdrawing group. The convenience sample of (N=304) included: 242 students who successfully completed the nursing program, 32 students who failed a nursing course, and 38 students who withdrew from a course prior to successful completion. …
-
A New Terazulenic Platform
… scaffold with electron-donating and electron-withdrawing groups at odd and even positions of the azulenic constituents, respectively, is proposed. A body of theoretical, synthetic, electrochemical, and spectroscopic studies completed by the author of this thesis are discussed.Chapter I …
-
Selective Borylations of Carbon-Carbon pi-Bonds
… diboron reagent to install boron on the electron withdrawing allenoate scaffold as well as on disubstituted 1,3-diynes. Lastly, this dissertation will cover the preliminary anti-fungal activity of a novel oxaborole scaffold. We investigated the borylation of the electron withdrawing allenoate …
-
Synthesis and investigation of quinoline based ß-haematin formation inhibitors as potential antimalarials
… in the 4-aminoquinoline moiety with an electron withdrawing and hydrophilic substituent results in retention of antiplasmodial activity in the 4-aminoquinoline class of compounds was investigated...
-
Electrochemiluminescence of Various Systems
The effects of electron withdrawing and electron donating groups on the electrochemiluminescent (ECL) properties of tris(2,2'-bipyridy) ruthemium(II) (Ru(bpy)₃²⁺ where bpy = 2,2'-pyridine) is reported. The electrochemistry of Ir(ppy)₃ (ppy = 2-phenylpyridine) and Os(phen)₂(dppene)²⁺ (phen = …
-
Optimal participation in the Conservation Reserve Program: Land enrollment decisions in a stochastic, dynamic framework
… farmers, paying them an annual rental fee for withdrawing highly erodible cropland from production.
-
Molecular electrocatalysis of hydrogen evolution: catalytic design studied by density functional theory
… strongly electron-donating to strongly electron-withdrawing. Because two of the reduction potential lines intersect at a Hammett constant consistent with a slightly electron-donating substituent, we predicted that the Co(II/I) couple and Co(III/II)-hydride couple would overlap for complexes with …
-
Borylations and Silylations of Alkenyl and Alkynyl Carbonyl Compounds Employing a Mild and Environmentally Friendly Cu(II) Catalyst
… deficient alkynes the identity of the electron withdrawing group controlled diastereoselectivity. Esters and amides exclusively form E-product, while aldehydes and ketones favor Z-product. Mechanistic insights into the catalytic cycle as well as origin of diastereoselectivity are discussed.
-
Synthesis and characterization of heterocyclic polymers: polybenzoxazoles and cyanate ester networks
… dicyanate monomers. The influence of electron withdrawing and donating groups on the behavior of the network forming curing process was investigated. It was demonstrated that electron withdrawing characteristics, such as carbonyl, sulfone, or phenylphosphine oxide increased the reactivity of …
-
Pushing the Limits of the Lithium Indicator Carbon Acidity Scale Using Cyclopentadiene Chemistry and 19F NMR Spectrometry
… groups listed in order of increasing electron-withdrawing power. The most acidic compound in the set was 1-pentafluorophenyl-2,3,4-tetrakis(tetrafluoro-4-pyridyl)cyclopentadiene, having pK = −5.99. Trends in the acidities of tetraarylcyclopentadienes are discussed including relative …
-
Multi-component Reactions Initiated via Sonogashira Coupling
It was shown that arylbromides bearing electron-withdrawing groups in appropriate positions can be subjected to Sonogashira coupling with terminal alkynes, producing internal alkynes that can now undergo a Michael addition with suitable secondary amines. This coupling-aminovinylation sequence can …
Page 1 of 14