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The Differential Adaptation of Two Slum Groups and a Working-Class Segment to a Housing Project in Cali, Colombia
No full textMade available in DSpace on 2014-12-10T23:54:55Z (GMT). No. of bitstreams: 1
7309869.pdf: 8329030 bytes, checksum: 330f16148b49c41c9233e8d3950bced1 (MD5)
Previous issue date: 1972Embargo set by: Seth Robbins for item 64469
Lift date: Forever
Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDsRestricted to the U of I community idenfinitely during batch ingest of legacy ETDsU of I Only217 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1972
Student-Teacher Perceptivity to Pupil Interests
No full textMade available in DSpace on 2014-12-12T19:53:37Z (GMT). No. of bitstreams: 1
7606876.pdf: 2783193 bytes, checksum: 1793a0c31274ae870ff2775a4992d4ac (MD5)
Previous issue date: 1975Embargo set by: Seth Robbins for item 65756
Lift date: Forever
Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDsRestricted to the U of I community idenfinitely during batch ingest of legacy ETDsU of I Only74 p.Thesis (Educat.D.)--University of Illinois at Urbana-Champaign, 1975
Communication and Miscommunication (Language, Artificial Intelligence, Natural Understanding)
No full textThis thesis discusses one aspect of enabling people to communicate in natural language with computers. The central focus of this work is a study on how one could build robust natural language processing systems that can detect and recover from miscommunication. The study of miscommunication is a necessary task within such a context since any computer capable of communicating with humans in natural language must be tolerant of the imprecise, ill-devised or complex utterances that people often use. This goal first requires an inquiry into how people communicate and how they recover from problems in communication. That investigation centers on the kinds of miscommunication that occur in human communication with a special emphasis on reference problems, i.e., problems a listener has determining whom or what a speaker is talking about. A collection of protocols of a speaker explaining to a listener how to assemble a toy water pump were studied and the common errors seen in speakers' descriptions were categorized. This study led to the development of techniques for avoiding failures of reference that were employed in the reference identification component of a natural language understanding program.The traditional approaches to reference identification in previous natural language systems were found to be less elaborate than people's real behavior. In particular, listener's often find the correct referent even when the speaker's description does not describe any object in the world. To model a listener's behavior, a new component was added to the traditional reference identification mechanism to resolve difficulties in a speaker's description. This new component uses knowledge about linguistic and physical context in a negotiation process that determines the most likely places for error in the speaker's utterance. The actual repair of the speaker's description is achieved by using the knowledge sources to apply relaxation techniques that delete or replace portions of the description. The algorithm developed more closely approximates people's behavior.Made available in DSpace on 2014-12-15T19:25:35Z (GMT). No. of bitstreams: 1
8502154.pdf: 7751389 bytes, checksum: c94af3f69ceef060947381d7b71b3ef7 (MD5)
Previous issue date: 1984Embargo set by: Seth Robbins for item 69702
Lift date: Forever
Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDsRestricted to the U of I community idenfinitely during batch ingest of legacy ETDsU of I Only264 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1984
Nutritional Studies on the Utilization of Winged Bean (Psophocarpus Tetragonolobus L. Dc) Seeds and Leaves (Carotenoids, Bean-Curd, Anti-Nutrients, Reversed Phase Hplc, Phytic Acid)
No full textProtein, fat, mineral and anti-nutrient contents of seed flour of 12 cultivars of winged bean (Psophocarpus tetragonolobus L.DC) grown in Sri Lanka were determined. Protein and oil contents in dehulled seed flour ranged from 37.4-46.9 and 20.0-26.5% on dry weight basis, respectively. Of the anti-nutrients, phytic acid and trypsin inhibitor levels ranged 1.0-1.7% and 52.5-99.5 trypsin inhibitor units/mg ground flour, respectively. Tannin content in the whole seed flour varied between 0.2 and 0.7mg catechin equivalents/g four. pH modification markedly affected the solubility of nitrogen, phytic acid and minerals in seed flour slurries.Procedures for the preparation of 100% winged bean or mixed winged bean-soybean curd employing the essential steps of soycurd production have been developed and optimized. Use of MgSO(,4), glucono delta lactone, acetic acid and CaSO(,4) as coagulants was investigated. CaSO(,4) precipitation resulted in a semi-solid and appreciably cohesive curd from winged bean. Winged bean curd had very low hardness value in comparison to soy tofu.The growth performance of weanling rats fed one of three test diets of winged bean seed flour (WBSF) prepared by using village scale processing methods was studied. Five groups, each consisting of six animals, were fed the following diets: 10% protein from casein, untreated WBSF, dry heat-treated WBSF, wet heat-treated WBSF or no protein. Untreated WBSF and dry heat-treated WBSF diets were not conducive for growth. The Net Protein Ratio (NPR) values calculated for casein-fed rats and wet heat-treated rats were 3.27 and 0.56, respectively. PER values of casein and wet heat-treated diets were similar to the previously published reports for autoclaved winged bean flour. This study suggests that the protein quality of WBSF prepared from 30 minutes boiled seeds is comparable to that of WBSF prepared by autoclaving, a method not available at the village level.A reversed-phase HPLC method, utilized to analyze carotenoids in blood was modified to evaluate (alpha)- and (beta)-carotene contents of winged bean leaves. (beta)-carotene levels ranged from 3.3 (+OR-) 0.2mg/100g fresh edible portion in raw, tender leaves to 6.6 (+OR-) 0.3mg/100g in raw mature leaves. (alpha)-carotene levels ranged from 0.5 (+OR-) 0.2mg/100g in raw tender leaves to 0.7 (+OR-) 0.2mg/100g in raw mature leaves.Made available in DSpace on 2014-12-15T21:10:11Z (GMT). No. of bitstreams: 1
8623418.pdf: 5580158 bytes, checksum: fe7d35a1702d1bd1dab1c77fb9ca75c9 (MD5)
Previous issue date: 1986Embargo set by: Seth Robbins for item 70257
Lift date: Forever
Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDsRestricted to the U of I community idenfinitely during batch ingest of legacy ETDsU of I Only157 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1986
Regulation of Interleukin -6 Gene Expression in the Brain of Aged Mice
No full textThe occurrence of certain neurodegenerative diseases increases with age. Because over expression of inflammatory cytokines in the brain may establish a state that is permissive to the onset of neurodegenerative diseases, in the present thesis study the effect of aging on the expression of inflammatory cytokine, interleukin-6 (IL-6), was determined. Competitive RT-PCR and ELISA assay showed that IL-6 mRNA and protein concentration were higher in aged brain compared to adult and neonate brain. To begin identifying the cell type responsible for increased IL-6 in the CNS, glial cells were cultured from brains of neonate, adult, and aged mice. Flow cytometric analysis revealed that increased IL-6 production in glia from aged mice is a result of an increase in reactive microglia, which spontaneously secret copious amount of IL-6. To determine the molecular basis responsible for increased IL-6 gene expression in the aged brain, the binding of transcription factors to the major response elements on the IL-6 promoter was evaluated in brains of 1-, 3-, and 24-month old mice by gel mobility shift assay. Whereas NFkappaB activity was increased in aged brain, NF-IL-6, MRE and AP-1 were either unaffected by aging or decreased. Inhibition of increased NFkappaB activity both in vivo and in vitro decrease IL-6 mRNA expression and protein level. These results suggest that increased NFkappaB activity in aged brain contributes to the elevated levels of IL-6. An anti-inflammatory cytokine IL-10 inhibits NFkappaB activity and expression of IL-6. The coronal brain sections and glia from aged mice secreted more IL-6 and less IL-10 than brain sections and glia from adults. Recombinant murine IL-10 decreased NFkappaB DNA binding activity, and therefore, reduced both constitutive and inducible IL-6 mRNA and protein levels in glia from aged mice. However, in glia from adult mice, supplemental IL-10 only decreased inducible, but not constitutive NFkappaB activity, IL-6 mRNA, and IL-6 protein. These data suggest that IL-10 constrains IL-6 gene expression in the adult brain, but in the aged brain it decreases and thus enables a cascade of intracellular events that increase the expression of the IL-6 gene.Made available in DSpace on 2015-09-25T21:08:42Z (GMT). No. of bitstreams: 2
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Previous issue date: 2000Embargo set by: Seth Robbins for item 84949
Lift date: Forever
Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDsRestricted to the U of I community idenfinitely during batch ingest of legacy ETDsU of I Only166 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2000
Mobility and Stability Characterization of Model Food Systems Using NMR, DSC, and Conidia Germination Techniques
No full textOne of the most important aspects of food stability to be monitored is the potential to support microbial growth and/or toxin production. Many researches have shown that water activity (a\rm\sb {w}) cannot adequately account for the observed stability behavior of many food systems. We hypothesize that water and solid mobility and glass transition temperature (Tg) of a food system may be useful tools for predicting and controlling its stability. Our objective was to study water and solid mobility and Tg of model food systems, and to evaluate the abilities of these parameters to serve as predictors of food stability by correlating them to mold conidia germination. Aspergillus niger conidia germination was used as a microbial probe of food stability in three systems; sucrose, starch and a 1:1 sucrose/starch mixture. A suite of NMR and DSC techniques were used to fully characterize water and solid mobility and Tg of the food systems, respectively. All experiments were done in duplicated at 20\sp\circC. Water content and a\rm\sb{w}, were unable to predict mold germination time. Among the three deuterium NMR relaxation rates, R1, R2, and R2*, used to measure water mobility, R2* showed the best overall correlation with mold germination time. In the C-13 CP/MAS NMR study, the two starch samples which supported mold germination also showed the lowest T\rm\sb{1p} values (i.e., high solid mobility) for the backbone carbons (C1 and C4) as compared to the other starch samples. Moreover, all samples supporting mold germination had DSC Tg midpoint values below the experimental mold germination temperature of 20\sp\circC. These results suggest that it may be more accurate to predict or control food stability by using water and solids mobility and Tg of the food system, than using a\rm\sb {w}. These parameters could also provide the basis for developing new food systems or improving existing ones.Made available in DSpace on 2015-09-25T21:10:15Z (GMT). No. of bitstreams: 2
license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5)
9904512.pdf: 11474260 bytes, checksum: 6295e746a9e0c22535125bbd2eb44a78 (MD5)
Previous issue date: 1998Embargo set by: Seth Robbins for item 85012
Lift date: Forever
Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDsRestricted to the U of I community idenfinitely during batch ingest of legacy ETDsU of I Only233 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1998
Blake's Buildings: Poetry and the Reshaping of Epistemology
No full textThis study situates Blake within the epistemological crisis that signaled the end of the Enlightenment. During this time, a number of thinkers in Germany and England realized that an adequate theory of representation needed to include reflexivity: awareness of how our thinking shapes the objects perceived. Reflexivity in turn led to the argument that reality doesn't stand ready-made waiting for its interpreter. Instead, reality is composed by a dialogic interchange between multiple perceivers and their objects. Thus one of my main arguments is that Blake contrasts two modes of conceiving thought. The first sees thought standing before an independent and ultimately inscrutable reality that it strives to interpret. The second, represented by the figure of Jerusalem, represents thought as an activity that transforms the shape of reality by its performance---sending forth arrows of intellect and love to enlighten and transform the dim chaos on all sides around. By developing this and other related ways of representing thought, I demonstrate an emerging pluralism in Blake and that the nemesis of Blake's project is not false belief but self-righteousness---the belief that we have (or can have) access to the one true form of reality, which legitimates our desire to destroy or silence other worldviews in the name of truth. Blake's ideal is humane discourse, not truth. In this way, Blake can be read as a forerunner of a number of pragmatic and pluralistic writers including Ralph Waldo Emerson, William James and, more recently, Richard Rorty.Made available in DSpace on 2015-09-25T20:15:26Z (GMT). No. of bitstreams: 2
license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5)
3363095.pdf: 4807577 bytes, checksum: 6c6580bfbc59465d700a8dce33617bb4 (MD5)
Previous issue date: 2009Embargo set by: Seth Robbins for item 82734
Lift date: Forever
Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDsRestricted to the U of I community idenfinitely during batch ingest of legacy ETDsU of I Only261 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2009
Folding-Driven, Nucleation -Elongation Polymerization of Phenylene Ethynylene Imines
No full textAs a result of the helical structure of the polymeric product, the polymerization of oligo(m-phenylene ethynylene) imines in solution should inherently show nucleation-elongation in chain growth. The evidence for this behavior was obtained from polymerizations conducted under conditions of imbalanced stoichiometry. Since the polymerization proceeds via metathesis between a pair of bifunctional monomers of type A-A and B-B, the molar ratio of the polymerizing functional groups can be arbitrarily varied. Alternatively, stoichiometry can be controlled by the addition of a monofunctional oligomer. Similar results were obtained in both cases whereby high molecular weight polymers were observed to coexist with the monomer in excess. Thermodynamic equilibrium was established by showing that the same distribution was reached starting either from a monomer mixture or from high polymer to which one monomer was added. These results are in great contrast to the low molecular weight oligomers produced from a reaction that proceeds without the nucleation event. Equilibrium models that capture the features of nucleation-elongation under imbalanced stoichiometry have been developed and qualitatively support the experimental observation by showing the monomer-polymer coexisting state to be the thermodynamic equilibrium distribution.Made available in DSpace on 2015-09-25T22:13:05Z (GMT). No. of bitstreams: 2
license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5)
3111665.pdf: 10519772 bytes, checksum: 86ddadf0e2bdf186b4c104a908938034 (MD5)
Previous issue date: 2003Embargo set by: Seth Robbins for item 85413
Lift date: Forever
Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDsRestricted to the U of I community idenfinitely during batch ingest of legacy ETDsU of I Only217 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2003
Direct observation of fast protein folding: Distinct nanosecond and microsecond events in the folding of apomyoglobin
No full textThe rapid refolding dynamics of horse apomyoglobin are followed by a new temperature-jump fluorescence technique on a nanosecond to 0.5 millisecond time scale in vitro. Collapse to a compact state is complete in under 20 microseconds under strongly-nativizing conditions. The intrinsic tryptophan fluorescence (residue 14 in the A alpha helix) serves as a local probe of the A-helix and the disposition of the H alpha helix. Methionine (residue 131 in the H-helix) quenching of tryptophan fluorescence at the interface of the A- and H-helices in the compact or native-like structure is exploited to observe directly collapse from a cold denatured state to a molten globule or compact, native-like state. Refolding is characterized by distinct nanosecond and microsecond phenomena (250 nanoseconds and 3.5 microseconds).The two kinetic phases are characterized by opposite effects on the intrinsic tryptophan fluorescence lifetime. The effects on the fluorescence lifetime are interpreted as secondary and tertiary structure formation: the nanosecond phase is assigned to local collapse and alpha-helix formation, and the microsecond phase is attributed to the interaction of the A- and H-helices in the formation of a collapsed, compact structure. Even at low viscosities, the dependence of the early folding rate on solvent viscosity is in agreement with diffusive behavior, indicating solvent exposed protein motion during the collapse.Made available in DSpace on 2011-05-07T11:59:12Z (GMT). No. of bitstreams: 2
license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5)
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Previous issue date: 1996Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding ([email protected]) on 2011-05-07T14:35:09Z
Item is restricted indefinitely.Restriction data tranferred 2014-07-01T11:13:44-05:00
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Reason: ETDs are only available to UIUC Users without author permissionETDs are only available to UIUC Users without author permissionU of I Onl
Modification of electrodes by electronically conductive polymer blends
No full textThe electron transfer process is often a limiting factor for overall charge delivery in a polymer film coated on an electrode surface. Our goal was to find a better conducting polymer matrix to explore the enhancement of electron transport. Our solution was to use -conjugated, electronically conductive polymers as modifiers of electrodes. This research involved the chemical synthesis and electrochemical investigation of poly(3-hexthylthiophene) (P3HT).P3HT was chemically synthesized by nickel-catalyzed dehalogenating condensation of the monomer, 3-hexthyl-2,5-diiodothiophene. The modification in the synthetic routine of the monomer enhanced its yield by five times. The polymer could be electrochemically oxidized and reduced easily and the oxidoreduction was chemically reversible."For modification of a Au electrode, polymer blends, which consisted of P3HT and differently quaternized polyvinylpyridines (QPVPs), were spincoated onto the Au disk electrode. The distribution of electrons within the blends was studied by cyclic voltammetry, and their charge versus potential profile by chronocoulometry. With the use of rotating disk voltammetry, the interaction of the blends (P3HT in the conducting state) with the electroactive species in the solution was investigated. All of the blends effectively mediated the oxidation of Fe(dmbpy)\sb3\sp{2+}. The mediation currents showed a nearly linear relationship with substrate concentration and were independent of film thickness. By changing the components of the blends, the microstructure of the films, in terms of porosity, polarity, and fluidity, could be altered. The resistances of the oxidized, dried and solvent-wetted blends were measured by a novel open-face sandwich electrode (the gap between two working electrodes being 25.2 m). A sharp reduction in the resistance occurred when the blend composition rose above 40% P3HT, probably because the percolation threshold was reached. The lowest resistance was obtained with a pure P3HT film. The conductivities under the ""dried"" condition for the pure P3HT film and the blend (Blend 2) containing 16.7% of P3HT were estimated to be 50 and 0.065 S/cm, respectively, whereas those of the corresponding films under the ""wet"" condition were 23 and 0.057 S/cm, respectively. Our blend systems seemed to fall into the SR case in the Andrieux-Saveant theory."Made available in DSpace on 2011-05-07T12:47:30Z (GMT). No. of bitstreams: 2
license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5)
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Previous issue date: 1991Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding ([email protected]) on 2011-05-07T14:45:50Z
Item is restricted indefinitely.Restriction data tranferred 2014-07-01T11:20:23-05:00
Original Data
Group with Access UIUC Users [automated]
Release Date: none
Reason: ETDs are only available to UIUC Users without author permissionETDs are only available to UIUC Users without author permissionU of I Onl