2,321 research outputs found
Linear transmitter design for MSAT terminals
One of the factors that will undoubtedly influence the choice of modulation format for mobile satellites, is the availability of cheap, power-efficient, linear amplifiers for mobile terminal equipment operating in the 1.5-1.7 GHz band. Transmitter linearity is not easily achieved at these frequencies, although high power (20W) class A/AB devices are becoming available. However, these components are expensive and require careful design to achieve a modest degree of linearity. In this paper an alternative approach to radio frequency (RF) power amplifier design for mobile satellite (MSAT) terminals using readily-available, power-efficient, and cheap class C devices in a feedback amplifier architecture is presented
The ecological complex controlling activities and distribution of ixodes ricinus
The following thesis consists of five papers
dealing with the relation of the tick, Ixodes ricinus
to its general environment. Three of the papers
have already been published, two in "Parasitology"
(1934 and 1935), and one in `!The Journal of :Animal
Ecology," 1Q34; the fourth paper has been accepted
for publication in "Parisotology", and the fifth,
being a philosophical interpretation of the experimentally obtained results, is being offered at present for publication in the same journal.i. [Reprinted from the Journal of Animal Ecology,
Vol. 3, No. 2, pp. 161 -164, November, 1934.]
THE PART PLAYED BY ALTERNATIVE HOSTS
IN MAINTAINING THE TICK POPULATION
OF HILL PASTURES
BY JOHN MACLEODii. IXODES RICINUS IN RELATION TO ITS PHYSICAL
ENVIRONMENT: THE INFLUENCE OF CLIMATE
ON DEVELOPMENT
BY J. MACLEOD
FROM PARASITOLOGY, VoL. XXVI, No. 2, 23 JUNE, 1934iii. IXODES RICINUS IN RELATION TO ITS
PHYSICAL ENVIRONMENT
II. THE FACTORS GOVERNING SURVIVAL AND ACTIVITY
BY
JOHN MAcLEOD
FROM PARASITOLOGY, VOL. XXVII No. 1, 11 MARCH, 1935iv. IXODES RICINUS IN RELATION TO ITS PHYSICAL ENVIRONMENT
III. CLIMATE AND REPRODUCTIOĂŹN
by
John McLeodv. IXODES RICINUiS IN RELATION TO ITS PHYSICAL ENVIRONMEMT
IV. An Analysis of the Ecological Com:A.Exes Controlling Distribution and Activities
by
JOHN MACLEO
Why are the wrongs wrong?:Scots lawyersâ approaches to justifying liability in delict
This article explores the development of Scotâs lawyersâ approaches to justifying delictual liability. It suggests that these reflect the taxonomical relationship between delict and the rest of the law. Four models are posited and discussed: the residual model (delict is the category for wrongful conduct without another taxonomical home); the crime/delict model (criminal law determines what is wrongful and delict handles its private law consequences); the conduct-harm model (wrongfulness is rooted in conduct which foreseeably or intentionally causes harm) and the rights-based model (wrongfulness is grounded on the breach of a right justified elsewhere in private law)
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The tectonic evolution of the Eastern Limassol Forest Complex, Cyprus
The Eastern Limassol Forest Complex (ELFC) lies at the southern margin of the Troodos ophiolite, Cyprus, and preserves a Penrose-type stratigraphy with a 4km-thick crustal sequence. The ELFC is separated from the main part of the Troodos Massif by an east-west trending fault zone, the Arakapas Fault Belt, which earlier studies suggest formed the northern wall of an oceanic transform fault. Transform-related structures are identifiable in the northern part of the ELFC, and volcaniclastic turbiditic sediments intercalated with lava flows attest to the existence of a bathymetric depression coincident with the fault zone. A southern boundary to the transform fault zone is recognised within the ELFC, with the abrupt disappearance of interlava sediments and E-W trending structures. Crust to the south of the boundary was generated at an 'Anti-Troodos' ridge axis. A width of c.5km is implied for the transform.
The accretionary geometry of the ELFC has been extensively modified by postvolcanic tectonism. Sustained extension oblique to the trend of the transform has resulted in the reactivation of transform-related structures as normal faults, which have been rotated 'falling domino' style, together with the greater part of the axis sequence crust, above a decollement horizon located near to the petrological Moho. Extensional strain was preferentially accommodated in the transform-tectonised north of the ELFC. In the south, NW-striking normal faults are more steeply dipping, and block tilting is less extreme. Mesostructural data suggest that these normal faults have been reactivated as oblique dextral strike-slip faults and, with subsidiary NE-trending structures, are responsible for clockwise block rotations about steeply plunging axes.
The timing of the deformation is constrained with respect to the overlying pelagic sediments, which suggest that the extension continued from the Turonian (i.e. almost immediately after ophiolite formation) to the late Campanian, and that the strike-slip reactivation occurred in late Campanian to early Maastrictian times. Palaeomagnetic studies have shown that Cyprus experienced a 90· anticlockwise rotation, which commenced in the Campanian-Maastrichtian interval, and it is argued that the late dextral strike-slip movements in the southern ELFC reflect deformation close to the margin of the rotating Cyprus microplate. The extensional reactivation of the transform in the Turonian-Campanian may correspond to an anticlockwise torque applied to the Troodos ocean floor prior to actual rotation. The rotation of Cyprus is thought to have been a consequence of the collision of the Arabian continental promontory to the east with an intra-oceanic subduction zone (above which Troodos was created) in the Upper Cretaceous
Some interrelations between the psychology and philosophy of William James
This item was digitized by the Internet Archive
Alien Registration- Macleod, John W. (Orono, Penobscot County)
https://digitalmaine.com/alien_docs/5464/thumbnail.jp
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Exploring practical approaches to maximising data quality in electronic healthcare records in the primary care setting and associated benefits
Exploiting the information contained within electronic healthcare records (EHR) data will be key to addressing major challenges to public health both nationally and globally, ultimately offering a means of maximising efficiency and equality in care. There are, however, significant challenges in using EHRs effectively and particularly in ensuring the quality of data recorded. Incorrect or missing data could render records as useless or indeed misleading such that conclusions drawn from the data could have a negative impact. Amongst other difficulties, recording data can be time consuming to the extent of conflicting with the GPâs primary focus of patient consultation in an already time-constrained environment. Understanding the requirements of and the demands upon GPs must be central to addressing the issue of data quality (DQ) within EHRs.
As part of on-going work into DQ at the Clinical Practice Research Datalink (CPRD) and in collaboration with the University of Sussex (UoS), a workshop session was held at the SAPC (Society for Academic Primary Care) conference in 2014 with the aim of exploring issues of DQ in primary care EHRs from the perspective of different users of GP data and with particular focus on how and why data is recorded in the first instance. The intended outcome was a furthered understanding of both the challenges and the direct benefits to GPs of ensuring high quality data with a view to establishing a workable approach to recording data and maximising benefits to all users of EHRs
Intervening for exhaustion
"The search for psychosocial factors that contribute to the aetiology and course of coronary heart disease (CHD) has been an energetic, although not always fruitful, pursuit for more than half a century. Around 20 years ago, Appels [1] identified a prodromal constellation of symptoms, including physical exhaustion and feelings of hopelessness, that preceded major CHD events. It was hypothesized that this syndrome of âvital exhaustionâ (VE) was a causal risk factor for CHD events, and several observational studies demonstrating prospective associations between VE and subsequent events have been adduced as supporting the hypothesis [2], [3], [4] and [5]. In a recent commentary, however, we discussed the difficulties inherent in drawing causal conclusions from observational evidence [6]. Applying general arguments that are by now very well rehearsed [7] and [8], we suggested that considerations such as confounding by common antecedents of both VE and CHD and reverse causation could not be readily dismissed and resolution was likely only following experimental studies. For example, an explanation of these prospective associations that regards CHD events as the result of inflammatory processes involved in the progress of atherosclerosis and VE as a consequence of such processes is just as parsimonious as one that regards VE as a causal risk. It is also equally, if not more, plausible biologically; there is now substantial evidence that inflammatory cytokines communicate with the central nervous system contributing to illness behaviour and experience and fostering feelings of depression and fatigue [9]. We also posed the question of what implications do the results of observational studies of VE hold for treatment [6]. Again, we would argue that in the absence of experimental evidence, the implications are extremely limited."\ud
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