Letter addressed to Press and Radio Friends which is attached to an informal history of the Whirlpool Rapids Bridge. The letter was sent from A.E. Parsons, manager of the Whirlpool Rapids Bridge

Letter (10 typed pages) addressed to Press and Radio Friends which is attached to an informal history of the Whirlpool Rapids Bridge. The letter was sent from A.E. Parsons, manager of the Whirlpool Rapids Bridge, n.d.

Port Dalhousie and the Thorold Railway pay roll for the months of June, July and August, 1855, signed by S.D. Woodruff. There is an envelope included with this document, Aug. 21, 1855

Port Dalhousie and the Thorold Railway pay roll for services of engineering and contingencies furnished for the months of June, July and August, 1855, signed by S.D. Woodruff. There is an envelope included with this document, Aug. 21, 1855.

Port Dalhousie and the Thorold Railway pay roll during Nov. 1856. This is signed by S.D. Woodruff, Dec. 9, 1856

Port Dalhousie and the Thorold Railway pay roll for extension of the service during Nov. 1856. This is signed by S.D. Woodruff, Dec. 9, 1856.

Voucher #22 to James McCoppen (copy) which includes a letter from James McCoppen regarding a claim for having water backed up into his grain and grass by the embankment of the railroad. The letter is dated June 24, 1857 and the voucher is dated Jul. 1, 1857

Voucher #22 to James McCoppen (copy) which includes a letter from James McCoppen regarding a claim for having water backed up into his grain and grass by the embankment of the railroad. The letter is dated June 24, 1857 and the voucher is dated Jul. 1, 1857.

Estimate for A. Cook for marsh lands main drain for the month of Sept. Also included is a list of labourers’ time for the month of September for A. Cook and Rose Osborne

Estimate for A. Cook for marsh lands main drain for the month of Sept. Also included is a list of labourers’ time for the month of September for A. Cook and Rose Osborne. This is signed by Fred Holmes, Sept. 26, 1857.

Estimate for A. Cook for marsh lands main drain for the month of Sept. Also included is a list of labourers’ time for the month of October for A. Cook’s men and Rose Osborne

Estimate for A. Cook for marsh lands main drain for the month of Sept. Also included is a list of labourers’ time for the month of October for A. Cook’s men and Rose Osborne. This is signed by Fred Holmes, Oct. 27, 1857.

Letter is addressed to S.D. Woodruff and is from Dunnville [signature illegible]

Letter is addressed to S.D. Woodruff and is from Dunnville [signature illegible] (3 pages, handwritten). The writer suggests that the head of the Welland Canal should be guarded. He has made a deal with the Sappers and Miners [Corps of Royal Military Artificers, consisting of noncommissioned officers and privates] to be stationed at this point, Jan.24, 1862.

Letter (copy) in three sections. The first part is addressed to Henry Nelles from M. Douglass. The second part is also addressed to Henry Nelles and is signed Mr. D. The third part is addressed to Mr. Griffen from George M. Richardson

Letter (copy) in three sections (1 ½ pages, handwritten). The first part is addressed to Henry Nelles from M. Douglass in which Mr. Douglass says he has enclosed $50. This section is dated Feb. 8, 1830. The second part is also addressed to Henry Nelles and is signed Mr. D. This is the section that says “your letter has just come stating that you had received a letter but the $50 was not in the letter. There was $50 in it when it left this post office. This is dated Feb. 14, 1830. The third part is addressed to Mr. Griffen from George M. Richardson. It says that this is to certify that Mr. Douglass did mail $50 on the 18th of this month. This letter is stained and slightly torn. Some of the text is affected. [This letter has to do with the case about the missing money which is included in this collection], Feb. 8, 1830.

Outlines of a System of polítical Economy; written with a view to prove to government and the country, that the cause of the present agricultural distress is entirely artificial..

UANL

Natural-Resource Exploitation with Costly Enforcement of Property Rights

This paper proposes a model of natural-resource exploitation when private ownership requires costly enforcement activities. For a given wage rate, it is shown how enforcement costs can increase with labor's average productivity on a resource site. As a result, it is never optimal for the site owner to produce at the point where marginal productivity equals the wage rate. It may even be optimal to exploit at a point exhibiting negative marginal returns. An important parameter in the analysis is the prevailing wage rate. When wages are low, further decreases in the wage rates can reduce the returns from resource exploitation. At sufficiently low wages, positive returns can be rendered impossible to achieve and the site is abandoned to a free-access exploitation. The analysis provides some clues as to why property rights may be more difficult to delineate in less developed countries. It proposes a different framework from which to address normative issues such as the desirability of free trade with endogenous enforcement costs, the optimality of private decisions to enforce property rights, the effect of income distribution on property rights enforceability, etc.

The shunt from the cyclooxygenase to lipoxygenase pathway in human osteoarthritic subchondral osteoblasts is linked with a variable expression of the 5-lipoxygenase-activating protein

Affiliation: Unité de recherche en Arthrose, Centre de recherche du Centre Hospitalier de l'Université de Montréal, Hôpital Notre-Dame

Critical pronouncing dictionary and expositor of the english language; in which the meaning of every word is explained, and the sound of every syllable distinctly shown...

UANL

Presence of menarche is associated with high depressive symptoms and cortisol levels in adolescent girls

Plusieurs études antérieures ont proposé que la ménarche pouvait représenter une vulnérabilité accrue au développement de la dépression en augmentant la réactivité au stress chez les filles ayant atteint leur cycle menstruel. Dans la présente étude, les symptômes dépressifs et les niveaux de cortisol salivaire ont été mesurés chez 198 garçons et 142 filles (11 - 13 ans), et ce, à quatre reprises au cours de leur première année de transition vers l’école secondaire, une période de stress chez les adolescents. Les résultats ont montré que les filles qui avaient atteint la ménarche au moment de la transition vers le secondaire avait des niveaux significativement plus élevés de symptômes dépressifs et de cortisol salivaire entre l’automne et le printemps, comparativement aux filles qui n'avaient pas encore atteint la ménarche. Ces dernières présentaient des niveaux plus élevés de symptômes dépressifs que les filles sans et les garçons. Les filles sans ménarche présentaient d’avantages des niveaux de symptômes dépressives plus élevés que les garçons. En utilisant l’âge de ménarche comme variable catégorique, les résultats démontrent que les filles ayant eu leur ménarche plus jeunes présentent des symptômes dépressifs plus élevés tout au long de l'année scolaire, alors que les filles qui ont commencé leur cycle menstruel à l’âge dit ‘normal’ présentent des symptômes dépressifs transitoires. Globalement, ces résultats suggèrent que la ménarche est un indice significatif d’une vulnérabilité accrue pour les symptômes dépressifs et les niveaux de cortisol plus élevés chez les adolescentes qui font leur entrée au secondaire. Également, ces résultats suggèrent qu’un âge précoce de ménarche peut exposer à long-terme le cerveau en développement à des niveaux élévés de cortisol, rendant ainsi ce groupe d’adolescentes plus vulnérables à la dépression.