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A structural equation modeling of distress-diathesis-adjustment for Chinese chronic low back pain patients. / CUHK electronic theses & dissertations collectionJanuary 1999 (has links)
Cheng Kin-wing. / "May 1999." / Thesis (Ph.D.)--Chinese University of Hong Kong, 1999. / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Mode of access: World Wide Web. / Abstracts in English and Chinese.
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Hydric soil indicators, magnetic susceptibility and greenhouse gas emissions among differing land-uses of Prairie Pothole Region wetland soils2013 April 1900 (has links)
Land-use change is prevalent across the Prairie Pothole Region (PPR) because of widespread
agricultural expansion over the last century. Different land-use histories will affect the distributions of
native vegetation and soil biogeochemistry of PPR wetlands. Furthermore, because native vegetation is
partially required for wetland classification, supplementary methods are needed for proper wetland
delineation. Accurate estimates of GHG emissions are required for correct climate change models;
therefore proper investigation of contrasting land-use histories on GHG emissions is essential. This
study focused on determining the effect that different land-use histories had on the expression of soil
hydric features and magnetic susceptibility as well as examining interacting effects among contrasting
land-use histories and biogeochemical controls of GHG emissions of PPR wetlands.
To determine the differing effects of land-use histories on hydric soil indicators and magnetic
susceptibility, fifteen ephemeral wetlands under differing land-uses (annually cultivated, restored
grassland, seeded pasture and native grassland) were sampled to a depth of 1 m with samples collected
every 10 cm. An upland pit was correspondingly sampled for each wetland. Soils were then analyzed
for organic C, inorganic C, dithionite extractable Fe, particle size distributions, wet stable aggregate
distributions and magnetic susceptibility at four different temperature treatments (room temperature,
100 °C, 300 °C and 500 °C). While some variables had observable difference among the land-uses (i.e.
organic C, dithionite extractable Fe and magnetic susceptibility), the most pronounced differences were
between the different pit positions (i.e. wetland pits vs. upland pits). The data was holistically analyzed
through non-metric multidimensional scaling (NMDS) and position based differences were easily
identified through this approach; however, only slight differences were present with respect to
contrasting land-use histories.
The controls of GHG emissions and their interactions were evaluated through two laboratory
incubations (i.e. CH4 incubation and N2O incubation), with a factorial design using land-use history
treatments as well as biogeochemical controls specific to each GHG (i.e. CH4: SO4- additions; N2O: water
filled pore space [WFPS] treatments and NO3
- additions). Both incubations had the presence of
interacting factors among the differing land-use histories. During the CH4 incubation, each land-use
history responded oppositely to sulfate additions. During the N2O incubations, both WFPS treatments
and NO3
- additions had additive effects on the emissions of N2O. Moreover, the presence of the
interactions satisfied the objective of the incubation study.
Overall it was determined that while land-use history significantly altered the response of GHG
controls with respect to GHG emissions, it did not have strong effects in influencing hydric soil indicators
and magnetic susceptibility values.
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Are all Children affected by Abusive Parenting in the same Way? The Role of Shyness and Coping in Understanding the Effects of Abusive Home Context.Borbely, Danielle January 2012 (has links)
No description available.
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Synthesis of Decaphenylmetallocenes of Mo and W Atoms and Transition Metal Complexes Containing Phosphine LigandsLee, Ching-I 02 August 2003 (has links)
none
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Differential susceptibility to social statusCason, Margaret Julia 18 July 2012 (has links)
The diathesis-stress model focuses on the interaction between gene polymorphisms and negative environmental conditions (i.e., stressors); however, Belsky and Pluess (2009) recently proposed an alternative to diathesis-stress: the differential susceptibility hypothesis, which states that some individuals may be predisposed to be more adversely affected by negative environments but, also, to benefit more from positive environments. Nevertheless, the differential susceptibly hypothesis has not been rigorous tested. Thus, the purpose of this study was to test the differential susceptibility hypothesis by examining individual differences in men’s testosterone, behavioral, and psychological responses to social status as a function of the serotonin transporter promoter region polymorphism (5-HTTLPR), which was cited by Belsky and Pluess as a potential “plasticity gene” because one variant – the long (l) allele – appears to be associated with lower susceptibility/plasticity and another – the short allele (s) – appears to be associated with higher susceptibility/plasticity.
In this study, groups of 3-4 male participants were allowed to socialize before being told that they were part of a larger initiative to create a student-run Honor Committee. They were asked to nominate one person to be the leader and one person to not be on the committee. Then, participants were told privately that everyone voted them to either (1) be the leader or (2) not be on the committee. Salivary hormone samples were collected at baseline and 20 minutes after vote feedback. In addition, after receiving the vote feedback, participants completed a series of dating anxiety and mate preference tasks and were given the option to examine an “actual honor violation” case either alone or as part of the committee.
The results support the differential susceptibility hypothesis. In terms of testosterone response, ss individuals showed both greater reactivity and differential responses to vote feedback. Furthermore, the testosterone responses of ss individuals were moderated by basal cortisol, which is associated with approach/avoidance behavior (Kagan et al., 2003; Shoal, Giancola, & Kirillova, 2003). In addition, ss individuals’ decisions to work on the committee or work alone and responses to the mating tasks were dependent upon the vote feedback, whereas l-carriers’ decisions and responses were not. / text
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Host cell susceptibility to human coronavirus infectionsMillet, Jean Kaoru Guillaume. January 2010 (has links)
published_or_final_version / Anatomy / Doctoral / Doctor of Philosophy
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The effects of folic acid deficiency on phagocytosis and susceptibility to infectionPathak, Hemantkumar Yeshwantrai, 1929- January 1960 (has links)
No description available.
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The effects of niacin deficiency on phagocytosis and susceptibility to infectionSiebeling, Ronald Jon, 1937- January 1962 (has links)
No description available.
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Pain sensitivity in females at risk for hypertensionKrywiak, Janis L. (Janis Lori) January 1994 (has links)
Hypertension is associated with a reduction in sensitivity to pain in both animals and humans. Changes in nociception pre-date elevations in blood pressure in animals genetically predisposed to hypertension, and preliminary findings with male offspring of hypertensives indicate that genetic risk for hypertension is related to decreased pain sensitivity in humans. Sensitivity to naturalistic and laboratory pain stimuli was compared in normotensive females with and without a parental history of hypertension in three studies. Genetic risk for hypertension was associated with decreased sensitivity for blood donation venipuncture pain and electric shock, but not for menstrual pain or the cold pressor test. These findings provide modest support for the notion that hypoalgesia is present in females at risk for hypertension. Issues for future research include extension of these findings to other pain stimuli, use of multiple indices of risk, assessment of the effects of cyclic hormonal changes on the relationship between pain sensitivity and risk for hypertension, and further study of the mechanisms and pathophysiological implications of this effect.
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The magnetic susceptibility of some palladium alloys.Tidman, James Paul January 1973 (has links)
No description available.
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