Henry Adams

Henry Adams has been a neglected figure in recent years. The Education of Henry Adams is widely accepted as a classic of American letters, but his other work is little read except by specialists. His brilliant journalism is out of print, while Mont Saint Michel and Chartres and the novels Democracy and Esther receive little attention. Even the monumental History of the Administrations of Thomas Jefferson and James Madison, considered by some to be the greatest history written by any American, seems noticed only by scholars of that period.James P. Young, author of the highly regarded Reconsidering American Liberalism, seeks to revive interest in the thought of Adams by extracting core ideas from his writings concerning both American political development and the course of world history and then showing their relevance to the contemporary longing for a democratic revival. In this revisionist study, Young denies that Adams was a reactionary critic of democracy and instead contends that he was an idealistic, though often disappointed, advocate of representative government. Young focuses on Adams's belief that capitalist industrial development during the Gilded Age had debased American ideals and then turns to a careful study of Adams's famous contrast of the unity of medieval society with the fragmentation of modern technological society. Though fully aware of Adams's concerns about technology, Young rejects the idea that Adams was bitterly opposed to twentieth century developments in that field. He shows that though a liberal democrat with inclinations toward reform, Adams is much too sophisticated to be captured by any simple label

Proportional-integral-plus (PIP) control of the ALSTOM gasifier problem

Although it is able to exploit the full power of optimal state variable feedback within a non-minimum state-space (NMSS) setting, the proportional-integral-plus (PIP) controller is simple to implement and provides a logical extension of conventional proportional-integral and proportional-integral-derivative (PI/PID) controllers, with additional dynamic feedback and input compensators introduced automatically by the NMSS formulation of the problem when the process is of greater than first order or has appreciable pure time delays. The present paper applies the PIP methodology to the ALSTOM benchmark challenge, which takes the form of a highly coupled multi-variable linear model, representing the gasifier system of an integrated gasification combined cycle (IGCC) power plant. In particular, a straightforwardly tuned discrete-time PIP control system based on a reduced-order backward-shift model of the gasifier is found to yield good control of the benchmark, meeting most of the specified performance requirements at three different operating points

Possibilities and Prospects: The Debate Over a Guaranteed Income

The idea of a guaranteed income has a long and respectable history in Canadian political and economic thought. Recently, in the face of both wide criticism of the Canadian income security system and growing recognition of the unacceptability of current poverty rates, there has been a resurgence in calls for implementation of a Canadian guaranteed income. But the idea is a controversial one; progressive activists, academics, and politicians disagree about the desirability and the practicality of a guaranteed income. This report: Traces the history of guaranteed income proposals in Canada; Catalogues both the most common reasons supporting advocacy of a guaranteed income and the most telling concerns raised by the notion; Provides an overview of basic dimensions along which proposals for a guaranteed income differ and sets out models that capture much of the range of proposals in the current debate; and Suggests a number of other social welfare measures that should be central elements of any reform program, but that guaranteed income debates often ignore. The term “guaranteed income” refers to a specific although broad category of social reform. As a starting place for discussion, the idea of a guaranteed income is used to signal reform proposals that advocate some variant of an income benefit scheme in which the state provides a minimum level of basic income on a continuing basis to every adult, irrespective of personal circumstances or need, with no or very few conditions attached. Proponents of a guaranteed income cite a range of reasons supporting the idea: A fix to poverty; Liberty and individual opportunity; Social and democratic citizenship; Gender equality; Shared social ownership; A flexible and just labour market; and Environmental sustainability

Cost effective combined axial fan and throttling valve control of ventilation rate

This paper is concerned with Proportional-Integral-Plus (PIP) control of ventilation rate in mechanically ventilated agricultural buildings. In particular, it develops a unique fan and throttling valve control system for a 22m3 test chamber, representing a section of a livestock building or glasshouse, at the Katholieke Universiteit Leuven. Here, the throttling valve is employed to restrict airflow at the outlet, so generating a higher static pressure difference over the control fan. In contrast with previous approaches, however, the throttling valve is directly employed as a second control actuator, utilising airflow from either the axial fan or natural ventilation. The new combined fan/valve configuration is compared with a commercially available PID-based controller and a previously developed scheduled PIP design, yielding a reduction in power consumption in both cases of up to 45%

Calcium and magnesium absorption and retention by growing goats offered diets with different calcium sources

Calcium addition is necessary in order to balance the high phosphorus concentrations that are characteristic of high-concentrate ruminant diets. However, calcium sources differ in their bioavailability. Our objective was to determine apparent calcium and magnesium absorption and retention in goats offered diets containing different sources of calcium. Spanish-Boer goats (n = 18; 19.6 ± 1.88 kg) were stratified by body weight (BW) and sex and randomized to dietary treatments consisting of Purina Antlermax 16 containing either calcium carbonate (CC), Calmin (CM) or Milk Cal (MC). Goats were adapted to a control, corn-based high-concentrate diet on pasture and then moved to individual 1.0 × 1.5-m pens with plastic coated expanded metal floors, and adjusted to their respective diets along with removal of hay from the diet over a 7-d period. Goats were then offered their respective diets at a total of 2% of BW in equal feedings at 8:30 AM and 5:00 PM for an additional 14-d adaption period to diet and facilities followed by a 7-d collection of total urine and feces. Data were analyzed using PROC MIXED of SAS. Calcium and magnesium intake were not different (P ≥ 0.12) among diets. Calcium and magnesium apparent absorption and retention (g/d and % of intake) were greatest (P \u3c 0.05) in goats offered CC and did not differ (P ≥ 0.20) between goats offered the CM and MC diets. Therefore, calcium and magnesium were more available for goats from the diet containing calcium carbonate compared with diets containing Calmin and Milk Cal