Calculation of the optical conductivity for the Anderson impurity model using the slave boson technique

The optical conductivity of the Anderson impurity mode l has been calculated by emp l oying the slave boson technique and an expansion in powers of l i N, where N is the d egeneracy o f the f electron level . This method has been used to find the effective mass of the conduction electrons for temperatures above and below the Kondo tempera ture. For low temperatures, the mass enhancement is f ound to be large while a t high t emperatures, the mass enhancement is sma ll. The conductivity i s f ound to be Drude like with frequency dependent effective mass and scattering time for low independent effective mass and temperatures and scattering time f requency for high t emperatures. The behavior of both the effective mass and the conductivity is in qualitative agreement with experimental r esul t s .

Indenture between Gilbert Anderson, Phoebe Anderson and John Picard

Indenture of bargain and sale between Gilbert Anderson the younger of the Township of Niagara and Phoebe Anderson (his wife) and John Picard of the Township of Niagara. The instrument no. is 6268. April 14, 1855.

Letter to Joseph A. Woodruff from Mr. Anderson

Letter to Joseph A. Woodruff from Mr. Anderson. He asks if Mr. Woodruff was able to bear some pressure on the judge to settle the old claim between Milroy and Price. This is accompanied by an envelope, Aug. 24, 1865.

Receipt from Adam, Meldrum and Anderson Dry Goods and Carpets

Receipt from Adam, Meldrum and Anderson Dry Goods and Carpets, Buffalo, New York for curtains, materials and hooks, Sept. 6, 1886.

Receipt from Adam, Meldrum and Anderson, Buffalo, New York

Receipt from Adam, Meldrum and Anderson, Buffalo, New York for sateen, May 17, 1887.

1964-65 Board of Governors

The 1964-65 Board of Governors. Pictured here are those who attended the first meeting on December 8, 1964. From left to right - Front Row: E. E. Mitchelson, Niagara Falls. Mrs. J. J. Bench, St. Catharines. W. B. Gunning, Chippawa. Dr. J. A. Gibson, St. Catharines. D. G. Willmot, St. Catharines. J. M. Trott, Welland. C. B. Hill, St. Catharines. A. C. Rae, Fonthill. Back Row: E. S. Howard, Fort Erie. W. J. Freeman, Port Colborne. M. L. Swart, Thorold. C. F. Anderson, Port Colborne. W. S. Martin, Queenston. E. R. Davey, Niagara Falls. R. L. Hearn, Queenston. C. W. Morehead, Welland. S. J. Leishman, Thorold. F. H. Leslie, Chippawa. F. C. Cullimore, Chippawa. W. B. C. Burgoyne, St. Catharines. H. C. Blenkhorn, St. Catharines. M. A. Chown, St. Catharines. B. P. R. Newman, St. Catharines. R. S. Misener, St. Catharines. Missing: R. M. Schmon, Niagara on the Lake. E. J. Barbeau, St. Catharines. P. E. Roberts, Toronto. L. R. Williams, Welland.

1968-69 Brock Curling

Curlers Bill Anderson, Rob Kelly and Earl Hotton.

Brock Hockey Team (1981-82)

Back Row: Paul Jackson (Asst. Coach), Paul DeGagne (Manager), Angelo Pontello, Yvan Prevost, Greg Foy, Ken Murray, Steve Ashfield, Rick Berard, Andy MacMillan, Kelly Toppazzini, Carl Van Bolderen, John Dakin, Loran Prentice, Joe Kenny (Trainer), Ron Anderson (Coach) Front Row: Logan Trafford, Mark Warren, Pat Gallagher, Phil Powers, Daryl Clancy, Ted Sawicki, Gord Christie, John Hogg, Brian Onifrichuk, Doug Riopelle, Shawn Barry Absent: Paul Hanley, Brad MacMillan, Rico Schirru, Mike Quinn (Asst. Coach)

Slackers, slashers and sticklers : Hollywood films and audience reception /

This thesis examines the processes through which identity is acquired and the processes that Hollywood :films employ to facilitate audience identification in order to determine the extent to which individuality is possible within postmodem society. Opposing views of identity formation are considered: on the one hand, that of the Frankfurt School which envisions the mass audience controlled by the culture industry and on the other, that of John Fiske which places control in the hands of the individual. The thesis takes a mediating approach, conceding that while the mass media do provide and influence identity formation, individuals can and do decode a variety of meanings from the material made available to them in accordance with the text's use-value in relation to the individual's circumstances. The analysis conducted in this thesis operates on the assumption that audiences acquire identity components in exchange for paying to see a particular film. Reality Bites (Ben Stiller 1994) and Scream (Wes Craven 1996) are analyzed as examples of mainstream 1990s films whose material circumstances encourage audience identification and whose popularity suggest that audiences did indeed identify with them. The Royal Tenenbaums (Wes Anderson 2001) is considered for its art film sensibilities and is examined in order to determine to what extent this film can be considered a counter example. The analysis consists of a combination of textual analysis and reception study in an attempt to avoid the problems associated with each approach when employed alone. My interpretation of the filmmakers' and marketers' messages will be compared with online reviews posted by film viewers to determine how audiences received and made use of the material available to them. Viewer-posted reviews, both unsolicited and unrestricted, as found online, will be consulted and will represent a segment of the popular audience for the three films to be analyzed.

Calculation of the magnetic field penetration depth for high-Tc cuprate superconductors based on the Interlayer Pair Tunneling model /

In this work, the magnetic field penetration depth for high-Tc cuprate superconductors is calculated using a recent Interlayer Pair Tunneling (ILPT) model proposed by Chakravarty, Sudb0, Anderson, and Strong [1] to explain high temperature superconductivity. This model involves a "hopping" of Cooper pairs between layers of the unit cell which acts to amplify the pairing mechanism within the planes themselves. Recent work has shown that this model can account reasonably well for the isotope effect and the dependence of Tc on nonmagnetic in-plane impurities [2] , as well as the Knight shift curves [3] and the presence of a magnetic peak in the neutron scattering intensity [4]. In the latter case, Yin et al. emphasize that the pair tunneling must be the dominant pairing mechanism in the high-Tc cuprates in order to capture the features found in experiments. The goal of this work is to determine whether or not the ILPT model can account for the experimental observations of the magnetic field penetration depth in YBa2Cu307_a7. Calculations are performed in the weak and strong coupling limits, and the efi"ects of both small and large strengths of interlayer pair tunneling are investigated. Furthermore, as a follow up to the penetration depth calculations, both the neutron scattering intensity and the Knight shift are calculated within the ILPT formalism. The aim is to determine if the ILPT model can yield results consistent with experiments performed for these properties. The results for all three thermodynamic properties considered are not consistent with the notion that the interlayer pair tunneling must be the dominate pairing mechanism in these high-Tc cuprate superconductors. Instead, it is found that reasonable agreement with experiments is obtained for small strengths of pair tunneling, and that large pair tunneling yields results which do not resemble those of the experiments.

Manipulation of adenovirus early region 1 rescue plasmids by homologous recombination in Saccharomyces cerevisiae

The manipulation of large (>10 kb) plasmid systems amplifies problems common to traditional cloning strategies. Unique or rare restriction enzyme recognition sequences are uncommon and very rarely located in opportunistic locations. Making site-specific deletions and insertions in larger plasmids consequently leads to multiple step cloning strategies that are often limited by time-consuming, low efficiency linker insertions or blunt-end cloning strategies. Manipulation ofthe adenovirus genome and the genomes ofother viruses as bacterial plasmids are systems that typify such situations. Recombinational cloning techniques based on homologous recombination in Saccharomyces cerevisiae that circumvent many ofthese common problems have been developed. However, these techniques are rarely realistic options for such large plasmid systems due to the above mentioned difficulties associated with the addition ofrequired yeast DNA replication, partitioning and selectable marker sequences. To determine ifrecombinational cloning techniques could be modified to simplify the manipulation of such a large plasmid system, a recombinational cloning system for the creation of human adenovirus EI-deletion rescue plasmids was developed. Here we report for the first time that the 1,456 bp TRP1/ARS fragment ofYRp7 is alone sufficient to foster successful recombinational cloning without additional partitioning sequences, using only slight modifications of existing protocols. In addition, we describe conditions for efficient recombinational cloning involving simultaneous deletion of large segments ofDNA (>4.2 kb) and insertion of donor fragment DNA using only a single non-unique restriction site. The discovery that recombinational cloning can foster large deletions has been used to develop a novel recombiliational cloillng technique, selectable inarker 'kilockouf" recombinational cloning, that uses deletion of a yeast selectable marker coupled with simultaneous negative and positive selection to reduce background transformants to undetectable levels. The modification of existing protocols as described in this report facilitates the use of recombinational cloning strategies that are otherwise difficult or impractical for use with large plasmid systems. Improvement of general recombinational cloning strategies and strategies specific to the manipulation ofthe adenovirus genome are considered in light of data presented herein.

The effectiveness of a computer program on career planning for university students

This study investigated the effectiveness of a computer program, PERSONAL CAREER DIRECTIONS (PC DIRECTIONS) (Anderson, Welborn, & Wright, 1983) on career planning and exploration for twenty-four Brock University students (18 women and 6 men) who requested career planning assistance at the Career/Placement Services of the Counselling Centre. A one-group pretest/posttest design was used in the study_ Progress in career planning and exploration was measured by Career Planning (CP) and Career Exploration (CE) scales of the Career Development Inventory (College and University Form) (Super, Thompson, Lindeman, Jordaan, & Myers, 1981). A paired samples 2-tailed t test for Career Development Attitudes (CDA) , the combined CP and CE scales, revealed the posttest scores were significantly higher than the pretest scores, t(23) = 3.74, 2 < .001. Student progress was also assessed by self-report lists of job titles which reflected positive changes after students used PC DIRECTIONS. In response to several questions, students' attitudes were more positive than negative toward the program. Implications are that PC DIRECTIONS is an effective component in promoting career planning for university students. Further studies may reveal that different types of students may benefit from different interventions in the career planning process.

A true and impartial account of the actions fought at Chippawa & Lundy's Lane during the last war with the United States /

On leaf preceding the t.p.: Battles of Chippawa and Lundy's Lane, by Charles Anderson, guide to the battle ground.

The relation between video game violence and aggression

Experimental research has shown that playing violent video games produces higher levels of aggressive cognition, aggressive affect, physiological arousal, and aggressive behavior (in the short-term) than non-violent video games (see Anderson, Gentile & Buckley, 2007). However, there are two major limitations with these studies. First, the majority of experimental studies that have compared the effects of violent versus non-violent video games on aggression have failed to equate these games in terms of competitiveness, difficulty, and pace of action. Thus, although the common finding is that violent video games produce higher levels of aggression than nonviolent video games, other unmatched factors beyond the actual violent content may be responsible for the elevated levels of aggression. Second, previous experimental studies have tended to use a measure of aggression that may also measure competitiveness, leading to questions about whether violent video games are related to aggression or competitiveness. The present thesis addressed these two issues by fIrst equating a violent and non-violent video game on competitiveness, difficulty and pace of action in Experiment I , and then comparing the effect of each game on aggressive behavior using an unambiguous measure of aggressive behavior (i.e., the Hot Sauce Paradigm). We found that video game violence was not sufficient to elevate aggressive behavior compared to a non-violent video game. Practical implications and directions for future research are discussed.

A true and impartial account of the actions fought at Chippawa and Lundy's Lane during the last war with the United States

On leaf preceding the t.p.: Battles of Chippawa and Lundy's Lane, by Charles Anderson, guide to the battle ground. On box: Chippawa and Lundy's Lane. Printed by John Simpson