Attempted asymmetric synthesis of Lactobacillic acid / |nFawzy F. Z. Georges. -- 260 St. Catharines, Ont. : [s. n.],

This research work has been planned with the intention of proving the absolute configuration of lactobacillc acid. During the course of this work, attempts have been made to synthesize cis-2-carboxycyclopropane- l-.acetic acid as,v,a suitable resolvable material. As the results were not satisfactory, the synthesis of ci,s-2-carboxycyclopropane-l-propionic acid has been alternatively attempted by ring opening of bicyclo- [4.1.~-heptan-2-onewithout much success. Attempts to resolve or prepare bicyclo[ 4.1.~-hePtan-2-one optically active are also reported. On the other hand, a complete scheme is described for the possible synthesis of optically active lactobacillic acid. If only bicyclo- ~.1.~ -heptan-2-one can be resolved or prepared optically active, this described scheme can be applied smoothly to the synthesis of enant~omeric lactobacillic acid.

Science Complex Opening

Pictured here from left to right are James Gibson, President Emeritus, R. A. Macleod, Board of Trustees, and Dr. Cecil Shaver, former Chancellor, during the 1984 Science Complex opening - an addition to the Mackenzie Chown Complex now simply known as H Block.

Science Complex Opening

Pictured here from left to right are Henry Tomarin, Board of Trustees, St. Catharines Mayor Roy Adams, R. Campbell, Niagara Region chairman, Peter Misener, and R. Misener, Chancellor, during the 1984 Science Complex opening - an addition to the Mackenzie Chown Complex now simply known as H Block.

Science Complex Opening

Dr. Earp unveils a sign at the joint Science Complex opening ceremony and the Academic Staging Building renaming ceremony. The Academic Staging Building was henceforth called the Mackenzie Chown Complex.

Science Complex Opening

Dr. Alan Earp speaks at the opening ceremony for the Science Complex addition in 1984.

Science Complex Opening

Doris Chown speaking at the Science Complex Opening and the unveiling of a sign in conjunction with the renaming of the Academic Staging Building to the Mackenzie Chown Complex.

Science Complex Opening

Robert S. K. Welch celebrates the opening of the new Science Complex wing, an addition to the Mackenzie Chown Complex, as Dr. Alan Earp (pictured behind Welch) and others look on. The new name for the Academic Staging Building was also unveiled. It was renamed after former mayor Mackenzie Chown.

Science Complex Opening

Rather then cutting a piece of red tape with scissors, the Science students at Brock prepared a laser devise to cut through a specially made piece of metallic ribbon for the opening ceremony of the Science Complex addition. Pictured here is Robert Welch with the laser device as he attempts to 'cut' the tape. Unfortunately the device failed and Dr. Earp resorted to cutting the tape with a Swiss Army knife he had on hand.

Official Opening Programme

The programme for the official opening held in 1964.

Official Opening

Pictured here at the Official Opening from left to right are: Mrs. J. A. Gibson; D. G. Willmot, Chairman Founders' Committee; His Excellency Governor General Vanier; Dr. J. A. Gibson; Madame Vanier; Honourable W. G. Davis, Minister of University Affairs; Mrs. Willmot.

Official Opening Ceremony

Dr. Gibson addresses the audience at the official opening ceremony at the Glenridge Campus.

Official Opening

Madame Vanier, General Vanier, Dr. Gibson and others at the opening of Brock.

Official Opening Outdoors

A photograph at the official opening in 1964 either before or after the ceremonies.

Harrison Hall Opening (January 1999)

The people involved in opening Harrison Hall.

The influence of investigator disturbance on aggressive behaviour and breeding success of ring-billed gulls (Larus delawarensis) /

Increased losses of eggs and chicks resulting from human intrusion (investigator or other) into seabird colonies has been well documented. In 1990/91, I studied the effects of investigator disturbance on aggressive behaviour and breeding success of individual pairs of ring-billed gulls nesting at two colonies near Port Colborne, Ontario. The insular colony was on an artificial breakwall, associated with the Welland Ship Canal, approximately 1 km off the north shore of Lake Erie. The mainland colony was adjacent to the canal approximately 1 km east of the breakwall. The frequencies of adult threat and assault behaviours, chick movement and adult attacks on chicks were recorded by continuous scan sampling 30 min prior to, 30 min during and 60 (2 X 30) min after investigator disturbance. The frequency of threat and assault behaviours increased during the period of investigator activity in the colony while the duration of wingpulls and beakpulls decreased. Significantly more chicks ran ("runners") from their natal territories during disturbances and "runners" were more frequently attacked than "territorial" chicks. No chicks were fatally attacked during disturbance and "runners" returned to their natal territories quickly after disturbance. Breeding success was determined for pairs nesting in study plots subjected to two levels of disturbance (normal and moderate). The disturbance level of each plot differed in visitation frequency and activities performed on each visit. Investigator disturbance had no effect on the hatching success or fledging success (taken as 21 days of age) of ring-billed gull study pairs at either colony.