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IN a previous paper, attention was called to the general behaviour of the vibratory system comprising the aeroplane‐engine‐airscrew combination. Types of vibration frequently encountered were described and a brief resumé of damping, excitation, and natural frequency effects was given. It is the purpose of this paper to review the general problem in light of current practice and to discuss in some detail certain observations made in the course of experimental study of the complete problem.

These details and drawings of patents granted in the United States are taken, by permission of the Department of Commerce, from the ‘Official Gazette of the United States Patent Office’. Printed copies of the full specification can be obtained, price 10 cents each, from the Commissioner of Patents, Washington, D.C., U.S.A. They are usually available for inspection at the British Patent Office; Southampton Buildings, Chancery Lane, London, W.C.2.

These details and drawings of patents granted in the United States are taken, by permission of the Department of Commerce, from the ‘Official Gazette of the United States Patent Office’. Printed copies of the full specification can be obtained, price 10 cents each, from the Commissioner of Patents, Washington, D.C., U.S.A. They are usually available for inspection at the British Patent Office, Southampton Buildings, Chancery Lane, London, W.C.2.

Control means for aircraft having a conventional fuselage, a mast carried thereby and sustaining propellers therefor mounted for rotation above the mast comprising the combination of three similar control panels, means radially mounting said panels from the mast in the slipstream of the propellers including axis structures symmetrically disposed about the mast and providing axes on which the panels are mounted for relatively free turning movement and which extend diagonally to the span axes of the panels, and means for positively turning the panels about said axes thereby to produce control moments.

In the aerodynamic design of vehicles for supersonic flight it is essential that the limits of the important aerodynamic variables lift, drag, moment and centre of pressure as functions of the design parameters be known. Frequently an ‘in the large’ analysis of this nature may be initiated using the most elementary considerations with the proper choice of the independent parameters and the proper representation of the aerodynamic variables. The main consideration in this paper is the representation of lift for a fairly general family of wing‐body configurations in a stationary linearized supersonic flow. Further generalization to other wing plan forms and body shapes and the representation of other aerodynamic variables will be evident but not considered in detail.

In variable ratio transmission mechanism of the type and for the purpose indicated, the combination of a driving shaft on which two gear wheels of different sizes are mounted together, a driven shaft on which an impeller may be mounted, two oppositely directed cone clutch members connected to the driven shaft in a position at one side of the said two gear wheels, two concentric shafts coaxial with said driven shaft and separately rotatable but both movable in the axial direction in relation thereto, a cone clutch member and a pinion on each of the said concentric shafts the clutch member being adapted to engage one of the clutch members on said driven shaft and the pinion meshing with one of the gear wheels on the driving shaft, and hydraulic means for moving the said concentric shafts in the axial direction and thereby causing engagement and disengagement of the clutch members on these shafts and the corresponding clutch members on said driven shaft whereby said shaft will be driven at one or the other of two alternative speeds.

The relationship between learning and mental health, as well as a growing body of literature, underscores the need for art therapy in educational settings. This is particularly true for learners with special needs. Shostak et al. (1985) affirmed that “for children with special needs, art therapy in a school setting can offer opportunities to work through obstacles that impede educational success” (p. 19). School art therapy facilitates improved social interaction, increased learning behaviors, appropriate affective development, and increased empathy and personal well-being. It can be adapted to meet the specific developmental needs of individual students and to parallel students’ developmental, learning, and behavioral objectives. This chapter introduces the reader to the history and basic constructs of art therapy as a psychoeducational therapeutic intervention in schools. Model programs are identified, as well as the role of the art therapist within the context of K-12 education settings. Additionally, examples of special populations who benefit from art therapy intervention within school systems are provided, along with considerations for school-wide art therapy.

Some misconception appears to have arisen in respect to the meaning of Section 11 of the Food and Drugs Act, 1899, owing, doubtless, to the faulty punctuation of certain copies of the Act, and the Sanitary Record has done good service by calling attention to the matter. The trouble has clearly been caused by the insertion of a comma after the word “condensed” in certain copies of the Act, and the non‐insertion of this comma in other copies. The words of the section, as printed by the Sanitary Record, are as follows: “Every tin or other receptacle containing condensed, separated or skimmed milk must bear a label clearly visible to the purchaser on which the words ‘Machine‐skimmed Milk,’ or ‘Skimmed Milk,’ as the case may require, are printed in large and legible type.”

In Scotland, the Community Empowerment (Scotland) Act represents a significant development towards greater localism in the way public services are designed and delivered in Scotland. This also represents a different approach to that adopted in the rest of the UK. The purpose of this paper is to explore the stakeholder perceptions of localism within a council ward.

This paper is based on an in-depth exploratory case study of a single council ward in East Scotland. The fieldwork involved 61 in-depth interviews with multiple stakeholders including local councillors, public service managers and residents.

The findings highlight that, whilst the discourse of community empowerment represents policy divergence, there remain some significant structural and social barriers to meaningful community empowerment in practice. Finally, it is argued that there are three key factors to consider when developing community empowerment: a shared strategy, shared resources and shared accountability.

The research draws on extensive data from an in-depth case study to explore the realities of community empowerment within a single local authority ward. In doing so, it provides a rich contextual narrative of how the rhetoric of community empowerment is perceived within a council ward setting.

Procrastination is regularly presented as a behavior to avoid, but this paper argues that individuals who strategically engage in procrastination may experience unique performance benefits that non-procrastinators do not. The purpose of this paper is to present a balanced framework from which procrastination, beginning with a review of the procrastination performance literature and historical stance on the behavior, can be understood.

This paper presents and reviews the use of procrastination in organizations.

Our findings indicate that while procrastination can be dysfunctional, it can prove to be strategically valuable. To summarize, this paper recommends a holistic conceptualization of procrastination that refrains from value judgment and calls for rethinking the stigma associated with the behavior.

This paper highlights both the theoretical and practical importance of exploring the benefits of procrastination in an organizational context.