Lax and Dense-Eared Wheats

1914 ◽  
Vol 6 (3) ◽  
pp. 371-386
Author(s):  
W. H. Parker
Keyword(s):  
Quantitative Character ◽  
General Importance ◽  
External Conditions ◽  
The Subject ◽  
Future Work

The present paper is written with no pretence at finality, and consequently some excuse is due for its publication at the present time. The author was induced to write it since the results so far obtained by him do not seem to agree, in all points, with the work previously done on the subject, and tend to show that there is much scope for future work both on this matter and also on a matter of much greater general importance, namely, on the influence of external conditions on a quantitative character.

scholarly journals Sensorimotor impairment from a new analog of spaceflight-altered neurovestibular cues

2020 ◽  
Vol 123 (1) ◽  
pp. 209-223
Author(s):  
Jordan B. Dixon ◽  
Torin K. Clark
Keyword(s):  
Head Tilt ◽  
Semicircular Canals ◽  
Control Groups ◽  
Head Restraint ◽  
The Subject ◽  
Sensorimotor Impairment ◽  
Self Motion ◽  
Future Work ◽  
Extended Exposure ◽  
Sensorimotor Performance

Exposure to microgravity during spaceflight causes central reinterpretations of orientation sensory cues in astronauts, leading to sensorimotor impairment upon return to Earth. Currently there is no ground-based analog for the neurovestibular system relevant to spaceflight. We propose such an analog, which we term the “wheelchair head-immobilization paradigm” (WHIP). Subjects lie on their side on a bed fixed to a modified electric wheelchair, with their head restrained by a custom facemask. WHIP prevents any head tilt relative to gravity, which normally produces coupled stimulation to the otoliths and semicircular canals, but does not occur in microgravity. Decoupled stimulation is produced through translation and rotation on the wheelchair by the subject using a joystick. Following 12 h of WHIP exposure, subjects systematically felt illusory sensations of self-motion when making head tilts and had significant decrements in balance and locomotion function using tasks similar to those assessed in astronauts postspaceflight. These effects were not observed in our control groups without head restraint, suggesting the altered neurovestibular stimulation patterns experienced in WHIP lead to relevant central reinterpretations. We conclude by discussing the findings in light of postspaceflight sensorimotor impairment, WHIP’s uses beyond a spaceflight analog, limitations, and future work. NEW & NOTEWORTHY We propose, implement, and demonstrate the feasibility of a new analog for spaceflight-altered neurovestibular stimulation. Following extended exposure to the analog, we found subjects reported illusory self-motion perception. Furthermore, they demonstrated decrements in balance and locomotion, using tasks similar to those used to assess astronaut sensorimotor performance postspaceflight.

A Program for an Investigation of the Rudder-Torque Problem

1965 ◽  
Vol 2 (03) ◽  
pp. 282-298
Author(s):  
Karl E. Schoenherr
Keyword(s):  
Research Program ◽  
Current Knowledge ◽  
Lateral Force ◽  
The Status ◽  
The Subject ◽  
Future Work ◽  
Marine Engineers

Panel H-10 (Controllability) of The Society of Naval Architects and Marine Engineers Technical and Research Program was requested to undertake an investigation of existing uncertainties in pre-calculating rudder torque and lateral force. In order to become quickly familiar with the subject and prospects therein, the Panel commissioned the author of this paper to survey the status of current knowledge of the subject and prepare a report of the findings. In particular, this report was to identify the most promising approaches for future work leading to an ultimate solution of the problem and to include technical descriptions of proposed programs for an exhaustive investigation, all of which are discussed in this paper.

scholarly journals Mid-Cretaceous acanthomorph fishes with the description of a new species from the Turonian of Lac des Bois, Northwest Territories, Canada

2016 ◽  
Vol 1 ◽  
pp. 101 ◽  
Author(s):  
Alison M Murray
Keyword(s):  
Northwest Territories ◽  
Neural Spine ◽  
Single Specimen ◽  
Western Interior Seaway ◽  
Incertae Sedis ◽  
Comprehensive Survey ◽  
The Subject ◽  
Future Work ◽  
A New Species ◽  
Cretaceous Deposits

A single specimen of a new acanthomorph fish is described from a Turonian locality sampling the northern part of the Cretaceous Western Interior Seaway. This brings to three the number of acanthomorphs from Lac des Bois, Northwest Territories, Canada. The previously named acanthomorph, Boreiohydrias dayi (Boriohydriidae), was placed in the Polymixiiformes. The second, represented by a poorly preserved fish, was left unnamed and incertae sedis in Acanthomorpha. The new one described here, Cumbaaichthys oxyrhynchus gen. et sp. nov. cannot be easily placed in any previously described families. This fish is placed in the Polymixiiformes based on the caudal skeleton having 18 principal rays (16 branched), and having a full neural spine on the second preural centrum. Polymixiiform relationships are not well established but they are the subject of several current studies; therefore, the new acanthomorph is placed incertae sedis within this order but with the understanding that this placement may be refined with future work. Previous studies have suggested that acanthomorphs may have flourished with warming climates of the Cenomanian–Turonian. A comprehensive survey of named acanthomorphs from mid-Cretaceous deposits shows there are more species known from the Cenomanian rather than the Turonian, although this may be biased by the age of known fossiliferous deposits.

Application of Satellite Based Augmentation Systems to Altitude Separation

1999 ◽  
Vol 52 (3) ◽  
pp. 313-317
Author(s):  
Jean Pierre Magny
Keyword(s):  
Design Principles ◽  
Preliminary Design ◽  
Vertical Separation ◽  
Safety Issues ◽  
The Subject ◽  
Future Work

This paper presents the application of GNSS1, or more precisely of Satellite Based Augmentation Systems (SBAS), to vertical separation for en-route, approach and landing operations. Potential improvements in terms of operational benefit and of safety are described for two main applications. First, vertical separation between en-route aircraft, which requires a system available across wide areas. SBAS (EGNOS, WAAS, and MSAS) are very well suited for this purpose before GNSS2 becomes available. And secondly, vertical separation from the ground during approach and landing, for which preliminary design principles of instrument approach procedures and safety issues are presented. Approach and landing phases are the subject of discussions within ICAO GNSS-P. En-route phases have been listed as GNSS-P future work and by RTCA for development of new equipments.

II. Bishop Wren and the Suppression of the Norwich Lecturers

1968 ◽  
Vol 11 (2) ◽  
pp. 237-254 ◽  
Author(s):  
Peter King
Keyword(s):  
Rapid Growth ◽  
Religious Organizations ◽  
The Subject ◽  
Future Work

One of the most serious problems facing Archbishop Laud was the rapid growth of the Lecturer Movement during the 1620s and 1630s. The increasing numbers of graduates available, and the increasing amount of money donated to support them meant that the weekly lectures had become one of the chief “religious … organizations of the opposition”, and were beginning to “undermine the hierarchical principle”. The gravity of the situation was marked by the increasingly stringent regulation of the lecturers. They had originally been allowed to preach with very little control, but from the Canons of 1604 onwards they were made the subject of several new regulations. These culminated in the Directions of March 16296 which, although issued by Archbishop Abbot, were based upon suggestions made by Laud to the king. Soon afterwards the lecturers in London Diocese were curtailed as a prelude to Laud's future work as archbishop. The Directions were reissued in January 1634, and a policy of deliberately reducing certain kinds of lecturer was initiated in several dioceses, pursued in the Metropolitical Visitation, and completed by Laud's supporters amongst the bishops.

Maritime History at the Crossroads

1995 ◽  
Keyword(s):  
United States ◽  
Ottoman Empire ◽  
Geographical Location ◽  
The United States ◽  
Maritime History ◽  
Publication Date ◽  
Recent Developments ◽  
The Subject ◽  
Future Work

This volume seeks to critically review the contemporary state of maritime historiography, as it stands at the volume’s publication date of 1995. The volume is comprised of thirteen essays, each focused on the recent research into the maritime concerns of a particular geographical location, listed as follows: Australia; Canada; China; Denmark; Germany; Greece; Ibero-America; India; the Netherlands; the Ottoman Empire; Spain; the United States; and a final chapter concerning historians and maritime labour in Britain, Australia, and New Zealand. One concern made evident by the collection is the lack of stable identity and cohesive aims within maritime history, the subject holds many conflicting definitions and concepts. The purpose of this volume is to explore the recent developments in maritime history, plus the growth of scholarly interest, to provide a ‘beacon and stimulus for future work’ and to clearly direct and define maritime historiography toward a solid position in the field of history.

Enterprise Risk Management from the General Insurance Actuarial Perspective

2008 ◽  
Vol 14 (3) ◽  
pp. 433-525 ◽  
Author(s):  
M. H. Tripp ◽  
C. Chan ◽  
S. Haria ◽  
N. Hilary ◽  
K. Morgan ◽  
...  
Keyword(s):  
Risk Management ◽  
Best Practice ◽  
Corporate Strategy ◽  
Enterprise Risk Management ◽  
The United Kingdom ◽  
General Insurance ◽  
Enterprise Risk ◽  
On Line ◽  
The Subject ◽  
Future Work

ABSTRACTThe authors have reviewed over 60 texts on the subject of Enterprise Risk Management (ERM). In this paper they set out a summary of ERM based on three of those sources, selected for their relevance and breadth of view. The paper observes that the approaches described vary widely in nature. A separate ‘on-line” source is provided, which summarises key readings from the 60 texts. Combining findings from these texts with the authors' own experiences, the paper suggests some best practice checklists, designed to enable organisations to take stock of their current ERM frameworks. It discusses other aspects of ERM for practitioners, including extreme events, opportunity management and the link with corporate strategy. The paper looks at immediate and longer-term implications for actuaries in the United Kingdom, and then poses questions about future professional development and education. It suggests an emerging role for the ‘ERM actuary’, and, finally, it suggests future work to progress the development of ERM and the actuaries' role.

The role of palaeoclimate studies: modelling

1993 ◽  
Vol 341 (1297) ◽  
pp. 341-342 ◽  
Keyword(s):  
Conceptual Framework ◽  
Multiple Equilibria ◽  
Rapid Change ◽  
Atmospheric Composition ◽  
Climate Modelling ◽  
The Past ◽  
External Conditions ◽  
The Subject ◽  
Almost All

Stepping back from the topic of the meeting, I should like to begin by addressing the role of palaeoclimate studies in the subject of climate and its prediction. I do not believe that it is only by looking at the past that one can see into the future. However, I do believe that studies of past climates have an important role to play. To perform climate modelling and to compare the data from models with observations, one must have a conceptual framework. Important elements in this framework are the roles of continents, mountains, solar input and atmospheric composition. It must include notions of rapid change. For example, the response to increasing atmospheric CO2 may be very slow until a certain critical point when it becomes very rapid: the ‘Joker in the pack’. The possibility of multiple equilibria, more than one possible climate for the same external conditions, must be recognized. The average situation is essentially irrelevant in a system that spends almost all of its time in either of two equilibra.

scholarly journals Market Basket Analysis in a Financial Institution

2019 ◽  
Vol 1 (1) ◽  
pp. 6-12 ◽  
Author(s):  
Felipe Rezende ◽  
Marcelo Ladeira
Keyword(s):  
Association Rules ◽  
Financial Institution ◽  
Sao Paulo ◽  
The State ◽  
Data Preparation ◽  
Market Basket Analysis ◽  
Market Basket ◽  
The Subject ◽  
Future Work ◽  
The Way

This article demonstrates a study on Market Basket Analysis of a financial institution, showing rules of personal consumer association of the state of São Paulo. A concept about three association algorithms is presented, but a study with only one is performed. The paper is divided into an introduction, describing a brief account of the reason for choosing the subject. Understanding the business, where it is explained about the financial institution and the importance of the study to the institution. The way the data are handled is demonstrated in Understanding the Data, just as the Data Preparation is described in the sequence, putting all the filters and treatments that were done on the data. In the following, it is described the Modeling, which reports on algorithms of association rules and on examples of these algorithms, as well as which algorithm was chosen to be treated in the paper. Evaluation explains on the results obtained with the study and the Implementation as it was done all the analysis of the data and the results obtained. Finally, we have the Conclusion about the learning obtained with the article and what future work to do. 

scholarly journals Switchable Electrohydrodynamic Capillary Bridges

2020 ◽  
Author(s):  
Tianxing Ma ◽  
Darrel Dsouza ◽  
Matthew Signorelli ◽  
Krysten Ryerson ◽  
Michael Loewenberg ◽  
...  
Keyword(s):  
Electric Field ◽  
Liquid Bridge ◽  
Field Application ◽  
Large Field ◽  
Droplet Volume ◽  
Parallel Plate Capacitor ◽  
Capillary Bridge ◽  
External Conditions ◽  
The Subject ◽  
Stable Field

<p>The deformation of sessile droplets and capillary bridging in a parallel-plate capacitor under DC fields has been the subject of several scientific studies. Coaxially located droplets on opposing electrodes experience an attraction in the presence of an electric field. Application of a suitably large field will lead to either the droplets forming a liquid bridge or oscillation between bridged and de-bridged (i.e. droplet) states. We explored the bridging behavior of a variety of liquids in air. Among the liquids and droplet geometries that could form a stable field-induced bridge, only a limited set could reversibly make and break the capillary bridge by switching the electric field on and off. The ability to form a switchable liquid bridge is a function of both the liquid’s properties, including surface tension, electric conductivity, and dielectric constant, and external conditions such as electrode separation, droplet volume.</p>

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