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Search Results: 1 - 10 of 21082 matches for " James Bryant "
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Review of Shayne Lee, T. D. Jakes: America’s New Preacher
James Bryant
Journal of Men, Masculinities and Spirituality , 2007,
Abstract: Review of Shayne Lee, T. D. Jakes: America’s New Preacher (New York: New York University Press, 2005), 214 pp.
The Maximal Denumerant of a Numerical Semigroup
Lance Bryant,James Hamblin
Mathematics , 2012, DOI: 10.1007/s00233-012-9448-5
Abstract: Given a numerical semigroup S = and n in S, we consider the factorization n = c_0 a_0 + c_1 a_1 + ... + c_t a_t where c_i >= 0. Such a factorization is maximal if c_0 + c_1 + ... + c_t is a maximum over all such factorizations of n. We provide an algorithm for computing the maximum number of maximal factorizations possible for an element in S, which is called the maximal denumerant of S. We also consider various cases that have connections to the Cohen-Macualay and Gorenstein properties of associated graded rings for which this algorithm simplifies.
Position Vectors of Numerical Semigroups
Lance Bryant,James Hamblin
Mathematics , 2014,
Abstract: We provide a new way to represent numerical semigroups by showing that the position of every Ap\'ery set of a numerical semigroup $S$ in the enumeration of the elements of $S$ is unique, and that $S$ can be re-constructed from this "position vector." We extend the discussion to more general objects called numerical sets, and show that there is a one-to-one correspondence between $m$-tuples of positive integers and the position vectors of numerical sets closed under addition by $m+1$. We consider the problem of determining which position vectors correspond to numerical semigroups.
Electric-field control of exciton fine structure: atomic scale manipulation of exchange splitting
Garnett W. Bryant,Natalia Malkova,James Sims
Physics , 2012,
Abstract: We use atomistic tight-binding theory with a configuration interaction description of Coulomb and exchange effects to describe excitons in symmetric quantum dots in a vertical electric field. We show that field-induced manipulation of exciton orientation and phase produces a drastic reduction of fine structure splitting, an anticrossing, and a 90 degree rotation of polarization, similar to experiment. An atomistic analysis is needed to explain how exciton reorientation modifies anisotropic exchange and fine structure splitting without significantly altering other splittings.
Maximal Denumerant of a Numerical Semigroup With Embedding Dimension Less Than Four
Lance Bryant,James Hamblin,Lenny Jones
Mathematics , 2011, DOI: 10.1216/JCA-2012-4-4-489
Abstract: Given a numerical semigroup $S = < a_1, a_2,..., a_t>$ and $s\in S$, we consider the factorization $s = c_1 a_1 + c_2 a_2 +... + c_t a_t$ where $c_i\ge0$. Such a factorization is {\em maximal} if $c_1+c_2+...+c_t$ is a maximum over all such factorizations of $s$. We show that the number of maximal factorizations, varying over the elements in $S$, is always bounded. Thus, we define $\dx(S)$ to be the maximum number of maximal factorizations of elements in $S$. We study maximal factorizations in depth when $S$ has embedding dimension less than four, and establish formulas for $\dx(S)$ in this case.
Depression and Brain-derived Neurotrophic Factor Levels in Alzheimer's Disease  [PDF]
James R. Hall, Sid E. O'Bryant, Leigh Johnson, Robert C. Barber
Neuroscience & Medicine (NM) , 2011, DOI: 10.4236/nm.2011.21006
Abstract: Background: Depression is often viewed as a risk factor for the development of Alzheimer's disease (AD), however little is known regarding the underlying biological mechanisms linking these two diseases. Brain-derived neurotrophic factor (BDNF) has been linked to both cognitive impairment and depression in past research; however few studies have ex-amined this relation in a sample of Alzheimer's patients. The present study sought to address this gap in the literature by examining the relation between serum BDNF levels and depression assessed by the Geriatric Depression Scale (GDS) in a group of patients diagnosed with probable Alzheimer's disease. Methods: Participants included 169 individuals diagnosed with Probable AD enrolled in the TARC Longitudinal Research Cohort with available BDNF levels and GDS scores. The participants were divided into Depressed (N = 20) and Not Depressed (N = 149) based on GDS scores. Re-sults: BDNF levels significantly predicted level (High vs. Low) of depression (β = 0.066, SE = 0.031, p = 0.034). BDNF levels for the Depressed group were significantly higher than those observed in the Not Depressed group (p. > 0.036). Conclusions: These findings suggest that an upregulation of BDNF possibly exists among depressed AD patients as a response to the chronic inflammatory processes that occur in depression. This upregulation of BDNF appears to persist at least into early stages of Alzheimer's.
Higher Groundwater Selenium Exposure Is Associated with Better Memory: A Project FRONTIER Study  [PDF]
James Hall, Melissa Edwards, Robert Barber, Leigh Johnson, Gordon Gong, Sid E. O’Bryant
Neuroscience & Medicine (NM) , 2012, DOI: 10.4236/nm.2012.31004
Abstract: Background: Exposure to elements in groundwater (toxic or beneficial) is commonplace yet, outside of lead and mercury, little research has examined the impact of many commonly occurring exposures on mental abilities during the aging process. Selenium has antioxidant properties as part of the glutathione peroxidase system and may have protective effects on memory abilities. Objectives: To investigate the relationship of groundwater selenium exposure to neuropsychological status. Method: Analysis of data from 484 participants (148 men and 336 women) of Project FRONTIER, a community-based participatory research study of the epidemiology of health issues of rural-dwelling adults and elders. Results: Estimated selenium exposure (current and long-term) was specifically related to memory functioning without relation to other neurocognitive domains. The significant, positive link between selenium and memory (Immediate and Delayed) scores held regardless of APOE4 status as well as when the sample was restricted to only those without cognitive dysfunction. Current selenium was also associated with significantly reduced risk of cognitive decline prospectively. Conclusions: Higher selenium levels were associated with better memory functioning as well as reduced risk of cognitive decline among this community-based sample. Given the antioxidant properties of selenium, and the well-documented link between oxidative stress and the development of cognitive dysfunction and Alzheimer’s disease, additional research is necessary to determine the utility of groundwater selenium monitoring as a potential population-wide prevention effort against Alzheimer’s disease.
Depressive Symptom Endorsement among Alzheimer’s Disease, Vascular Dementia and Mild Cognitive Impairment  [PDF]
James R. Hall, Leigh Johnson, April Wiechmann, Robert C. Barber, Sid O’Bryant
Open Journal of Medical Psychology (OJMP) , 2012, DOI: 10.4236/ojmp.2012.13006
Abstract: Background: The Geriatric Depression Scale (GDS) is widely used to assess depressive symptoms in clinical and research settings. This study utilized a 4 factor solution for the 30-item GDS to explore differences in the presentation of depressive symptoms in various types of cognitive impairment. Method: Retrospective chart review was conducted on 254 consecutive cases of community dwelling elderly newly diagnosed with mild Alzheimer’s Dementia (AD) n = 122, mild Vascular Dementia (VaD) n = 71 or Amnestic Mild Cognitive Impairment (aMCI) n = 32 and Non-Amnestic MCI (nMCI) n = 29. Results: Analysis revealed no significant differences (p < 0.05) between the groups for total GDS score, the Dysphoria subscale or Cognitive Impairment subscale. AD endorsed significantly fewer symptoms than VaD on Apathy, Meaninglessness and Dysphoria. AD did not endorse a significantly different number of items than aMCI on any of the subscales. AD endorsed significantly fewer items than nMCI on Apathy and Meaninglessness. VaD endorsed significantly more items than the aMCI only on the Meaninglessness subscale (p > 05). No statistically significant differences were found between VaD and nMCI or between the MCI groups. Conclusions: Support is provided for the use of GDS subscales in a wide range of cognitively impaired elderly. This study suggests in mild dementia the number and type of depressive symptoms vary significantly between AD and VaD. There are indications that aMCI patients are similar in their symptom endorsement to AD and nMCI are similar to VaD which is consistent with some of the notions regarding likely trajectories of the respective MCI groups.
Boston Naming Test: Gender Differences in Older Adults with and without Alzheimer’s Dementia  [PDF]
James R. Hall, Hoa T. Vo, Leigh A. Johnson, April Wiechmann, Sid E. O’Bryant
Psychology (PSYCH) , 2012, DOI: 10.4236/psych.2012.36068
Abstract: The study clarifies the relationship between gender and performance on the BNT by controlling for the effects of demographic and health risk factors. Participants were 468 outpatient individuals (153 diagnosed with probable Alzheimer’s Disease (AD) and 318 cognitively intact) enrolled in the Texas Alzheimer’s Research and Care Consortium cohort. Participants under went evaluations including medical examination, interview, neuropsychological testing, and blood draw. The neuropsychological assessment consisted of the Wechsler Digit Span, Logical Memory, and Visual Reproduction, along with the Trail Making Test, Boston Naming Test (60-item version), verbal fluency (FAS), and the Geriatric Depression Scale (GDS-30).To control for severity of cognitive impairment only mild AD as shown by a CDR global score of 0.5 or 1.0 were used. Control males outperformed females (F = 10.81, p < .000, ES = .20). AD males also performed significantly better than AD females (F = 17.13, p < .000, ES = .25). Gender differences remain after covarying for estimated IQ, age, education, and presence of hyperlipidemia and hypertension. Overall, within-group and between-group comparisons support prior findings that males perform significantly better compared to females on the BNT even after controlling for health and level of decline. Findings have implications for clinical practice and prospective test norm considerations.
Counselling a Woman Traumatized by Severe Abuse  [PDF]
Jodi Bryant
Psychology (PSYCH) , 2014, DOI: 10.4236/psych.2014.57083

The manuscript is a case report on a newly married Christian wife and mother of 3 children who sought help at a college counselling service for substance dependence and marital problems. Her past sexual trauma had manifested as severe traumatic reactions, which had contributed to a chronic emotionally distressed life, sexual promiscuity, and substance dependence, and she was unable to function appropriately in most spectrums of vitality. After the case issues and counselling approaches were researched, family members attended 11 Christ-centered or Spirituotherapy counselling sessions during which theistic and CBT interventions were used. The client gained insight into her past and current issues; grew spiritually; decreased her substance use; gained better communication skills, parenting, and coping methods; maintained a part-time job; and learned relapse prevention and management strategies. It was recommended that she continue theistic counselling.

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