Biochemical aspects of the resistance of bean to Halo Blight disease

Imperial Users onl

Odometry Correction of a Mobile Robot Using a Range-Finding Laser

Two methods for improving odometry using a pan-tilt range-finding laser is considered. The first method is a one-dimensional model that uses the laser with a sliding platform. The laser is used to determine how far the platform has moved along a rail. The second method is a two-dimensional model that mounts the laser to a mobile robot. In this model, the laser is used to improve the odometry of the robot. Our results show that the one-dimensional model proves our basic geometry is correct, while the two-dimensional model improves the odometry, but does not completely correct it

‘The source of all local authority': the role of Gloucestershire magistrates in local government 1800-1834

This article examines the impact of magistrates on one of the most critical areas of local government, the English welfare system. It does this by employing a micro-political survey of Gloucestershire parishes who implemented one specific welfare reform, Gilbert’s Act 1782. It focuses on the interplay between parishes and particular local magistrates to illuminate the diverse impact justices had on welfare practice. This approach shows how the input of magistrates was highly variable and individualized. Magisterial intervention did not ensure strict compliance to statute, but rather application of relief reflected their ‘discretion’ in the implementation of the poor law, where they deigned to participate with it. By demonstrating magisterial influence was strategically and operationally applied, this article also suggests that the impact of justices was more pervasive than previously acknowledged and highlights the need for further research to reappraise understanding of the justices’ role in Georgian society

The Impact of Back Benchers in the Creation of Social Reform: <i>The Indefatigable and Honourable Exertions of Mr Gilbert</i>*

During the 18th century, back‐bench members of parliament played a critical role in creating social policy. This article provides a case study of the political campaigns of the Lichfield MP, Thomas Gilbert, and his attempts at a comprehensive reform of the poor law in 1765 and 1782. These individual endeavours were energetic, sophisticated, but unallied to a particular agenda or based on Gilbert's original perspectives. Instead, he harnessed the power of local interests and extra‐parliamentary forces, particularly magistrates, through the adept use of print culture in his later campaign to form social policy based on a broad political consensus. A skilled political operator, he used these same methods to help navigate his bills through parliament. To better fit the context, the campaigns were moulded around political expediency and influenced by the development of Gilbert's humanitarian reputation and the burgeoning of the press, parliamentary reporting, and political debate. The political environments of 1765 and 1782 were, therefore, different, and broader trends influenced the two campaigns. This article demonstrates the importance of the press to political campaigning and suggests that to be successful (in social policy at least) a would‐be reformer was required to engage with a developing participatory political culture. However, given Gilbert's approach, the importance of ideology as a basis for social reform in an 18th‐century context is questioned

Development of theory-based health messages: three-phase programme of formative research

Online health behaviour interventions have great potential but their effectiveness may be hindered by a lack of formative and theoretical work. This paper describes the process of formative research to develop theoretically and empirically based health messages that are culturally relevant and can be used in an online intervention to promote healthy lifestyle behaviours among new university students. Drawing on the Theory of Planned Behaviour, a three-phase programme of formative research was conducted with prospective and current undergraduate students to identify (i) modal salient beliefs (the most commonly held beliefs) about fruit and vegetable intake, physical activity, binge drinking and smoking, (ii) which beliefs predicted intentions/behaviour and (iii) reasons underlying each of the beliefs that could be targeted in health messages. Phase 1, conducted with 96 pre-university college students, elicited 56 beliefs about the behaviours. Phase 2, conducted with 3026 incoming university students, identified 32 of these beliefs that predicted intentions/behaviour. Phase 3, conducted with 627 current university students, elicited 102 reasons underlying the 32 beliefs to be used to construct health messages to bolster or challenge these beliefs. The three-phase programme of formative research provides researchers with an example of how to develop health messages with a strong theoretical- and empirical base for use in health behaviour change interventions

PAN AIR: A computer program for predicting subsonic or supersonic linear potential flows about arbitrary configurations using a higher order panel method. Volume 3: Case manual (version 1.0)

Numerous applications of the PAN AIR computer program system are presented. PAN AIR is user-oriented tool for analyzing and/or designing aerodynamic configurations in subsonic or supersonic flow using a technique generally referred to as a higher order panel method. Problems solved include simple wings in subsonic and supersonic flow, a wing-body in supersonic flow, wing with deflected flap in subsonic flow, design of two-dimensional and three-dimensional wings, axisymmetric nacelle in supersonic flow, and wing-canard-tail-nacelle-fuselage combination in supersonic flow

Unique Effects of Setting Goals on Behavior Change: Systematic Review and Meta-Analysis

Objective: Goal setting is a common feature of behavior change interventions, but it is unclear when goal setting is optimally effective. The aims of this systematic review and meta-analysis were to evaluate: (a) the unique effects of goal setting on behavior change, and (b) under what circumstances and for whom goal setting works best.&nbsp; Method: Four databases were searched for articles that assessed the unique effects of goal setting on behavior change using randomized controlled trials. One-hundred and 41 papers were identified from which 384 effect sizes (N = 16,523) were extracted and analyzed. A moderator analysis of sample characteristics, intervention characteristics, inclusion of other behavior change techniques, study design and delivery, quality of study, outcome measures, and behavior targeted was conducted.&nbsp; Results: A random effects model indicated a small positive unique effect of goal setting across a range of behaviors, d = .34 (CI [.28, .41]). Moderator analyses indicated that goal setting was particularly effective if the goal was: (a) difficult, (b) set publicly, and (c) was a group goal. There was weaker evidence that goal setting was more effective when paired with external monitoring of the behavior/outcome by others without feedback and delivered face-to-face.&nbsp; Conclusions: Goal setting is an effective behavior change technique that has the potential to be considered a fundamental component of successful interventions. The present review adds novel insights into the means by which goal setting might be augmented to maximize behavior change and sets the agenda for future programs of research

PAN AIR: A Computer Program for Predicting Subsonic or Supersonic Linear Potential Flows About Arbitrary Configurations Using a Higher Order Panel Method

An outline of the derivation of the differential equation governing linear subsonic and supersonic potential flow is given. The use of Green's Theorem to obtain an integral equation over the boundary surface is discussed. The engineering techniques incorporated in the PAN AIR (Panel Aerodynamics) program (a discretization method which solves the integral equation for arbitrary first order boundary conditions) are then discussed in detail. Items discussed include the construction of the compressibility transformations, splining techniques, imposition of the boundary conditions, influence coefficient computation (including the concept of the finite part of an integral), computation of pressure coefficients, and computation of forces and moments

A higher order panel method for linearized supersonic flow

The basic integral equations of linearized supersonic theory for an advanced supersonic panel method are derived. Methods using only linear varying source strength over each panel or only quadratic doublet strength over each panel gave good agreement with analytic solutions over cones and zero thickness cambered wings. For three dimensional bodies and wings of general shape, combined source and doublet panels with interior boundary conditions to eliminate the internal perturbations lead to a stable method providing good agreement experiment. A panel system with all edges contiguous resulted from dividing the basic four point non-planar panel into eight triangular subpanels, and the doublet strength was made continuous at all edges by a quadratic distribution over each subpanel. Superinclined panels were developed and tested on s simple nacelle and on an airplane model having engine inlets, with excellent results