Delayed Schwann cell and oligodendrocyte remyelination after ethidium bromide injection in the brainstem of Wistar rats submitted to streptozotocin diabetogenic treatment

Schwann cell disturbance followed by segmental demyelination in the peripheral nervous system occurs in diabetic patients. Since Schwann cell and oligodendrocyte remyelination in the central nervous system is a well-known event in the ethidium bromide (EB) demyelinating model, the aim of this investigation was to determine the behavior of both cell types after local EB injection into the brainstem of streptozotocin diabetic rats. Adult male Wistar rats received a single intravenous injection of streptozotocin (50 mg/kg) and were submitted 10 days later to a single injection of 10 µL 0.1% (w/v) EB or 0.9% saline solution into the cisterna pontis. Ten microliters of 0.1% EB was also injected into non-diabetic rats. The animals were anesthetized and perfused through the heart 7 to 31 days after EB or saline injection and brainstem sections were collected and processed for light and transmission electron microscopy. The final balance of myelin repair in diabetic and non-diabetic rats at 31 days was compared using a semi-quantitative method. Diabetic rats presented delayed macrophage activity and lesser remyelination compared to non-diabetic rats. Although oligodendrocytes were the major remyelinating cells in the brainstem, Schwann cells invaded EB-induced lesions, first appearing at 11 days in non-diabetic rats and by 15 days in diabetic rats. Results indicate that short-term streptozotocin-induced diabetes hindered both oligodendrocyte and Schwann cell remyelination (mean remyelination scores of 2.57 ± 0.77 for oligodendrocytes and 0.67 ± 0.5 for Schwann cells) compared to non-diabetic rats (3.27 ± 0.85 and 1.38 ± 0.81, respectively).

An application of cell-cluster theory to a rare gas crystal /|n[by] K. Westera. - 260 St. Catharines [Ont.] : Dept. of Physics, Brock University,

The Lennard-Jones Devonshire 1 (LJD) single particle theory for liquids is extended and applied to the anharmonic solid in a high temperature limit. The exact free energy for the crystal is expressed as a convergent series of terms involving larger and larger sets of contiguous particles called cell-clusters. The motions of all the particles within cell-clusters are correlated to each other and lead to non-trivial integrals of orders 3, 6, 9, ... 3N. For the first time the six dimensional integral has been calculated to high accuracy using a Lennard-Jones (6-12) pair interaction between nearest neighbours only for the f.c.c. lattice. The thermodynamic properties predicted by this model agree well with experimental results for solid Xenon.

Margaret Glassford fonds, 1941, 1951, 1961, 1971, 1973-1975, 1977-1984, 1986-2000, 2002, 2005, n.d.

Margaret was an only child who grew up on a farm just east of Cayuga, Ontario. After high school, Margaret attended Hamilton Teacher’s College and took a position with Grantham Public School Board and taught at Power Glen school. Margaret was married in 1962 and had 2 children, a daughter and a son in 1963 and 1964, respectively. Margaret left her teaching job to raise her children. Margaret was very creative and artistic and during this time, focused on these talents, which included painting, graphic arts and sewing. Margaret was also an accomplished pianist. In her 40’s, Margaret enrolled at Brock University and in 1989 obtained a Honors Bachelor of Arts degree with First-Class Honors in Sociology. In partial fulfillment of her Honors B.A. she completed her thesis that is entitled ; The State and Liberal Feminism: The Ontario Government’s “Business Ownership For Women Program”. While living in St. Catharines, Margaret attended York University and graduated with a Master of Arts in Sociology in 1992 where her studies focused on women’s issues. Margaret received a scholarship from York University and was a teaching assistant. Margaret stayed on at York University and completed her academic requirements for a Doctorate degree in Sociology. Her dissertation was on self employed women in St. Catharines at the beginning of WWII -- not the” Rosie the Riveters” who took over jobs formerly held by men who had to go off to fight World War II, but women who ran their own businesses when that was still unusual. Margaret completed the research for her thesis but did not complete her written thesis as she made a difficult decision to put her academic work on hold in the mid-1990’s and she returned to her love for the arts, although she always remained a voracious reader and interested in women’s issues. In the last decade of her life, she took up quilting with a passion, which she referred to as fabric arts. Margaret loved colour and being non-traditional. Margaret had been a quilting instructor at the Flemington College for Fine Arts in Haliburton. In 1997, Margaret founded Project Smile in the St. Catharines region, a non-profit group who make quilts for children with cancer. Margaret was also the President of the Niagara Heritage Quilters’ Guild in 2006-2007 and was very involved with the Local Council of Women.

An investigation of the psychopathy construct and its (novel) correlates in non-clinical samples

A substantial research literature exists regarding the psychopathy construct in forensic populations, but more recently, the construct has been extended to non-clinical populations. The purpose of the present dissertation was to investigate the content and the correlates of the psychopathy construct, with a particular focus on addressing gaps and controversies in the literature. In Study 1, the role of low anxiety in psychopathy was investigated, as some authors have proposed that low anxiety is integral to the psychopathy construct. Participants (n = 346) responded to two self-report psychopathy scales, the SRP-III and the PPI-R, as well as measures of temperament, personality, and antisociality. Of particular interest was the PPI-R Stress Immunity sub scale, which represents low anxiety content. I t was found that Stress Immunity was not correlated with SRP-III psychopathy, nor did it share common personality or temperament correlates or contribute to the prediction of anti sociality. From Study 1, it was concluded that it was unlikely that low anxiety is a central feature of the psychopathy construct. In Study 2, the relationship between SRP-III psychopathy and Ability Emotional Intelligence (Le., Emotional Intelligence measured as an ability, rather than as a self-report personality trait-like characteristic) was investigated, to determine whether psychopathy is be s t seen as a syndrome characterized by emotional deficits or by the ability to skillfully manipulate and prey upon the others' emotions. A negative correlation between the two constructs was found, suggesting that psychopathy is best characterized by deficits in perceiving, facilitating, managing, and understanding emotions. In Study 3, sex differences in the sexual behavior (i.e., promiscuity, age of first sexual behaviors, extradyadic sexual relations) and appearance-related esteem (i.e., body shame,appearance anxiety, self-esteem) correlates of SRP-III psychopathy were investigated. The sexual behavior correlates of psychopathy were quite similar for men and women, but the esteem correlates were very different, such that high psychopathy in men was related to high esteem, whereas high psychopathy in women was generally related to low esteem. This sex difference was difficult to interpret in that it was not mediated by sexual behavior, suggesting that further exploration of this topic is warranted. Together, these three studies contribute to our understanding of non-clinical psychopathy, indicating that low anxiety is likely not part of the construct, that psychopathy is related to low levels of ability in Emotional Intelligence, and that psychopathy is an important predictor of behavior, ability, and beliefs and feelings about the self

TA tales : [re]storying the teaching and learning experiences of university teaching assistants

This inquiry examines reported critical incidents that shaped the lived experience of 5 university TAs as they negotiated multiple roles and relationships within the teaching and learning context. Questions and ensuing conversations explore the ways in which these critical incidents in teaching contributed to the TAs' understanding of themselves as teachers, of teaching and learning tensions in higher education, and of the institutional contexts in which they work. The inquiry also explores the ways in which narrative, particularly creative fiction, can represent the stories TAs tell of their experiences.

Barnes Wines, Limited By-Law no. 82

A by-law "to fix the remuneration and expense allowances of directors". It reads "Be it enacted as a By-law of Barnes Wines Limited: 1. That each Director of the Company be paid the sum of Seventy-five ($75,00) Dollars annually in respect of general services rendered by the Director in his capacity as Director, such remuneration to accrue from the date of his election or appointment as a Director. 2. That each Director shall be paid and allowed travelling and other expenses properly incurred in connection with the affairs of the Company. 3. That this provision shall be and remain in force and effect in the fiscal years of the Company, 1971 to 1973 both inclusive. Enacted this 8th day of February, 1971."

Barnes Wines, Limited By-Law no. 75

By-Law no. 75 begins "A by-law to govern the affairs of the company and repealing the by-laws of the company passed heretofore relating to the administration of the affairs of the company".

Barnes Wines, LImited By-Law no. 81

The by-law reads: "A by-law to amend by-law no. 79 of the company by restricting the distribution of monies set aside for profit sharing to officers and employees regularly employed at the company's plant. Be it therefore enacted as a by-law of Barnes Wines, Limited as follows: That Schedule 'A' to By-Law no. 79 of the Company enacted on the 2nd day of February, 1953, be and the same is hereby amended by adding after the word "Company" in the last line of paragraph I thereof, the following: 'regularly employed at the Company's plant,' Enacted this 9th day of February, 1966. Witness the Corporate Seal of the Company. Unanimously confirmed by all the Shareholders of the Company at a Special General Meeting of the Shareholders of the Company held on the 21st day of February, 1966."

Barnes Wines, Limited By-Law No. 84

The By-Law reads: "A By-Law to change the Qualification of a director of the Corporation. Be it enacted and is hereby enacted as a By-law of Barnes Wines, Limited that: - Whereas it is deemed expedient to change the qualifications of a Director of the Corporation; Be it therefore enacted as a By-law of Barnes Wines, Limited, as follows: That By-law no. 75 of the Corporation be and the same is hereby amended by striking out Paragraph 4 thereof. Enacted this 9th day of April, 1973. Witness the Corporate seal of the Corporation."

Barnes Wines, Limited By-Law No. 80

The by-law reads: "A by-law to change the date for the holding of the annual meeting. Whereas it is deemed expedient to change the date for the holding of the Annual Meeting of the Company; Be it therefore enacted as a By-law of Barnes Wines, Limited as follows: That By-law No. 75 of the Company be and the same is hereby amended by striking out paragraph 24 thereof and enacting in the place or stead thereof the following: "24. Annual Meeting - The Annual Meeting of the Share-holders shall be held at the Head Office of the Company or elsewhere in Ontario on the first Monday in March in each year or on such other day as the Directors may be resolution determine."

Barnes Wines, Limited By-law No. 73

The By-Law summary reads: "A By-Law to authorize payments to certain employees in lieu of benefits provided for other employees under a retirement plan."

Barnes Wines, Limited By-Law No. 74

The summary of the By-Law reads: "A By-Law to provide for participation in profits by employees of the company."

Barnes Wines, Limited By-Law No. 76

The summary of the By-Law reads: "A By-Law to provide for participation in profits of Barnes Wines, Limited for the fiscal year 1949, by employees of the Company."

Barnes Wines, Limited By-Law No. 77

The summary of the By-Law reads: "A By-Law to authorize an application for supplementary letters patent to alter the authorized capital by reducing the same in respect of the preference shares, cancelled and retired, and increasing the capital by the creation of additional preference shares."

Barnes Wines, Limited By-Law No. 78

The summary of the By-Law reads: "A By-Law to authorize the setting aside of certain monies annually out of the net profits of the Company before payment of dominion and provincial income taxes and provincial corporation tax to be paid to a trustee for distribution to the employees and officers of the Company and to authorize the execution of an agreement with a trustee to effect such purpose."