A handbook of elementary chemistry for students of medicine, dentistry and pharmacy,

Mode of access: Internet.

Colchicine in agriculture, medicine, biology, and chemistry

Includes bibliographies.

The ethics of medicine homicide and mutilation,

Mode of access: Internet.

United States code : containing the general and permanent laws of the United States, in force on January 4, 1995 /

Mode of access: Internet.

The treatment of wounds; its principles and practice, general and special,

Mode of access: Internet.

Text-book of general and special pathology for students and practitioners,

Mode of access: Internet.

Text-book of general and special pathology for students and practitioners,

Mode of access: Internet.

Psychological monographs: general and applied.

Includes music.

Joint task force on intelligence and law enforcement : report to the Attorney General and Director of Central Intelligence.

"PB94-928013"--Stamped cover.

A manual of modern surgery, general and operative,

Mode of access: Internet.

Laboratory manual in general and pathogenic bacteriology and immunity,

"The exercises ... represent the laboratory work given in connection with the courses in general and pathogenic bacteriology respectively in New York state veterinary college at Cornell university."--Pref.

A digest of the law of carriers of goods and passengers by land and internal navigation.

Mode of access: Internet.

Casual jobs and internal labour markets

This paper examines the role of casual employment as a route into permanent employment. Using a competing risks framework we compare transitions from casual to permanent employment made within the firm and to other firms. We also examine the wage outcomes and job durations of these two transitions. It is found that internal transitions occur at all occupational levels and display characteristics associated with probationary employment. Thus, as suggested by previous case study evidence, permanent positions at all levels in the firm are open to a degree of external competition.

Determination of external and internal mass transfer limitation in nitrifying microbial aggregates

In this article we present a study of the effects of external and internal mass transfer limitation of oxygen in a nitrifying system. The oxygen uptake rates (OUR) were measured on both a macro-scale with a respirometric reactor using off-gas analysis (Titrimetric and Off-Gas Analysis (TOGA) sensor) and on a micro-scale with microsensors. These two methods provide independent, accurate measurements of the reaction rates and concentration profiles around and in the granules. The TOGA sensor and micro-sensor measurements showed a significant external mass transfer effect at low dissolved oxygen (DO) concentrations in the bulk liquid while it was insignificant at higher DO concentrations. The oxygen distribution with anaerobic or anoxic conditions in the center clearly shows major mass transfer limitation in the aggregate interior. The large drop in DO concentration of 22 - 80% between the bulk liquid and aggregate surface demonstrates that the external mass transfer resistance is also highly important. The maximum OUR even for floccular biomass was only attained at much higher DO concentrations ( approximate to 8 mg/L) than typically used in such systems. For granules, the DO required for maximal activity was estimated to be > 20mg/L, clearly indicating the effects of the major external and internal mass transfer limitations on the overall biomass activity. Smaller aggregates had a larger volumetric OUR indicating that the granules may have a lower activity in the interior part of the aggregate. (C) 2004 Wiley Periodicals, Inc.