797 research outputs found
DECAY OF SOLUTIONS OF MAXWELL-KLEIN-GORDON EQUATIONS WITH ARBITRARY MAXWELL FIELD
No full textIn the author's previous work, it has been shown that solutions of Maxwell-Klein-Gordon equations in R3+1 possess some form of global strong decay properties with data bounded in some weighted energy space. In this paper, we prove pointwise decay estimates for the solutions for the case when the initial data are merely small on the scalar field but can be arbitrarily large on the Maxwell field. This extends the previous result of Lindblad and Sterbenz, in which smallness was assumed both for the scalar field and the Maxwell field.SCI(E)ARTICLE81829-1902
Foreign direct investment in a macroeconomic framework : finance, efficiency, incentives, and distortions
Get PDFDoes foreign direct investment (FDI) increase domestic investment, or does it provide additional foreign exchange for a pre-existing current account deficit, or some linear combination of the two? The author investigates this question for a group of five Pacific Basin countries and a control group of 11 other developing countries. For the sample of all 16 developing countries, the author finds that FDI does not provide additional balance of payments financing for a pre-existing current account deficit. In the control group of 11 developing countries, FDI is associated with reduced domestic investment - implying that FDI to those countries is simply a close substitute for other capital inflows. For the five Pacific Basin market economies, however, FDI raises domestic investment by the full extent of the FDI inflow. The author finds that FDI has a significantly negative impact on national saving in the sample of all 16 developing countries. For the control group, this negative effect is similar in magnitude to FDI's negative effect on domestic investment - implying a zero effect on the current account. But FDI's negative effect on national saving in the five Pacific Basin developing market economies implies that FDI could have more of a negative effect on the current account than through increased domestic investment alone. The author also investigates the impact of FDI on economic growth in these 16 countries, taking into account distortions in the economies. He estimates reduced-form current account equations, and presents an analytical framework for estimating FDI's effect on economic growth in the presence of incentive-disincentive packages and other economic distortions. He illustrates his framework using indicators of foreign trade and financial distortions. His main conclusion: the effect of FDI differs markedly from one group of countries to another. FDI has a negative effect on economic growth in the control group. It has the same positive effect on growth as domestically financed investment does in the Pacific Basin countries. The main cause for the different effect is the low level of distortion in the Pacific Basin countries.Environmental Economics&Policies,Economic Theory&Research,Foreign Direct Investment,International Terrorism&Counterterrorism,Macroeconomic Management
Sensory and motor neuronal networks of the spinal cord
Get PDFThis body of work is focused upon neuronal networks of the spinal cord which are
involved in processing of sensory information and generation of motor output. It
includes a detailed account of the synaptic organisation, target neurons and
neurotransmitter content of central terminals of various classes of cutaneous and
proprioceptive primary afferent axons. It shows that presynaptic boutons at
axoaxonic synapses, which regulate primary afferent transmission, contain GABA
but that other transmitters such as glycine, neuropeptide Y and acetylcholine may
be co-localised in these structures. The principal conclusion is that certain subtypes
of presynaptic inhibitory interneurons target the terminals of specific types of primary
afferent fibres but the majority of these neurons do not from 'pure' presynaptic
inhibitory systems because many of them also mediate postsynaptic inhibition. A
further series of investigations provides a detailed analysis of the organisation of
monoaminergic axon terminals and the receptors that they act upon. This work
supports the existence of two parallel modes of action for monoamines in the cord; a
diffuse (non-synaptic or paracrine) system and a specific system which acts through
direct synaptic actions on particular target neurons. Serotonin, for example, acts as
a general modulator but also regulates transmission in some pathways selectively.
Amongst the cells that are targeted selectively, are interneurons in reflex pathways
and a class of projection neuron which receives monosynaptic input from
nociceptive primary afferent axons. More recently, the focus has been on the
organization and neurochemical properties of spinal interneurons. Until recently,
there were few satisfactory classifications of spinal interneurons and the relationship
between functional and structural properties of such cells was unclear. A detailed
analysis of interneurons has shown that there is a clear relationship between the
action of a given interneuron (i.e. whether it is inhibitory or excitatory), its axonal
projections and the classes of cell that it targets. In conclusion, the work reported in
this thesis is an attempt to elucidate neuronal circuits which underlie sensory and
motor processes in the spinal cord by applying modern functional anatomical
approaches.SELECTED REVIEW ARTICLES (PEER REVIEWED):
1. Morris, R., Cheunsuang, O., Stewart, A. and Maxwell, D. (2004) Spinal dorsal horn neurone
targets for nociceptive primary afferents: do single neurone morphological characteristics
suggest how nociceptive information is processed at the spinal level. Brain Res. Rev. 46, 173-
190. (Review article written as co-author with Dr. Richard Morris; contains some unpublished
data from all 4 authors) ||
2. Jankowska, E., Maxwell, D.J. and Bannatyne, B.A. (2007) On coupling and decoupling of
spinal interneuronal networks Arch. Ital. Biol. 145: 235-250, 2007 (Review article written
jointly by E. Jankowska, B.A. Bannatyne and DJM: summarises some of our major findings).SELECTED PEER REVIEWED ARTICLES:
1. Maxwell, D.J. Bannatyne, B.A., Brown, A.G. and Fyffe, R.E.W. (1982) Ultrastructure of
physiologically identified hair follicle afferent fibres in the cat spinal cord. Journal of
Neurocytology 11, 571-582. (Author; performed bulk of experimental work reported). ||
2. Maxwell, D.J., Leranth, Cs. and Verhofstad, A.A.J. (1983) fine structure of serotonin
containing axons in the marginal zone of the rat spinal cord. Brain Research 266, 253-260. ||
(Author; initiated and performed bulk of experimental work reported).
3. Maxwell, D.J., Fyffe, R.E.W. and Rethelyi, M. (1983) Morphological properties of
physiologically characterized lamina III neurons in the cat spinal cord. Neuroscience 10, 1-22.
(Author; initiated and performed bulk of experimental work reported). ||
4. Maxwell, D.J., Fyffe, R.E.W. and Brown, A.G. (1984) Fine structure of normal and
degenerating primary afferent boutons associated with characterized spinocervical tract
neurones in the cat. Neuroscience 12, 151-163. (Author; initiated and performed bulk of
experimental work reported). ||
5. Maxwell, D.J. and Bannatyne, B.A. (1983) Ultrastructure of muscle spindle afferent
terminations in lamina VI of the cat spinal cord. Brain Research 288, 297-301. (Author;
initiated and performed bulk of experimental work reported). ||
6. Maxwell, D.J., Bannatyne, B.A., Fyffe, R.E.W. and Brown, A.G. (1984) Fine structure of
primary afferent terminations projecting from rapidly adapting mechanoreceptors of the toe
and foot pads of the cat. Quarterly Journal of Experimental Physiology 69, 381-392. (Author;
initiated study and performed bulk of experimental work reported jointly with B.A. Banntyne). ||
7. Bannatyne, B.A., Maxwell, D.J., Fyffe, R.E.W. and Brown, A.G. (1984) Fine structure of
primary afferent terminals of slowly adapting cutaneous receptors in the cat. Quarterly Journal
ofExperimental Physiology 69, 547-557. (Author; initiated study and performed bulk of
experimental work reported jointly with B.A. Banntyne).
2 ||
8. Maxwell, D.J., Koerber, H.R. and Bannatyne, B.A. (1985) Light and electron microscopy of
contacts between primary afferent fibres and neurons with axons ascending the dorsal columns
of the feline spinal cord. Neuroscience 16, 375-394. (Author; initiated and performed bulk of
experimental work reported). ||
9. Maxwell, D.J. and Koerber, H.R. (1986) Fine structure of collateral axons originating from
feline spinocervical tract neurons. Brain Research 363, 199-203. (Author; initiated and
performed bulk of experimental work reported).
10.Maxwell, D.J., Christie, W.M. and Somogyi, P. (1989) Synaptic connections of GABAcontaining boutons in the lateral cervical nucleus of the cat: an ultrastructural study employing
pre- and post-embedding immunocytochemical methods. Neuroscience 33, 169-184.
(Author; initiated and performed bulk of experimental work reported). ||
II .Maxwell, D.J., Christie, W.M., Ottersen, O.P. and Storm-Mathisen, J. (1990) Terminals of
group la primary afferent fibres in Clarke's column are enriched with L-glutamate-like
immunoreactivity. Brain Research 510, 346-350. (Author; initiated and performed bulk of
experimental work reported). ||
12.Maxwell, D.J., Christie, W.M., Short, A.D., Storm-Mathisen, J. and Ottersen, O.P. (1990)
Central boutons of glomeruli are enriched with L-glutamate-like immunoreactivity in the spinal
cord of the cat. Neuroscience 36, 83-104. (Author; initiated and performed bulk of
experimental work reported). ||
13.Maxwell, D.J., Christie, W.M., Short, A.D. and Brown, A.G. (1990) Direct observations of
synapses between GABA- immunoreactive boutons and muscle afferent terminals in lamina VI
of the cat's spinal cord. Brain Research 530, 215-222. (Author; initiated and performed bulk of
experimental work reported). ||
14.Maxwell, D.J., Christie, W.M., Short, A.D. and Brown, A.G. (1991) Direct observations of
synapses between GABA- immunoreactive boutons and identified spinocervical tract neurons
in the cat's spinal cord. J.Comp. Neurol. 307: 375-392. (Author; initiated and performed bulk
of experimental work reported). ||
15.Doyle, C.A. and Maxwell, D.J. (1991) Catecholaminergic innervation of the spinal dorsal
horn: a correlated light and electron microscopic analysis of tyrosine hydroxylase
immunoreactive fibres in the cat. Neuroscience, 45, 161-176. (Co-author; initiated and
supervised experimental work reported). ||
16.Doyle, C.A. and Maxwell, D.J. (1991) Ultrastructural analysis of noradrenergic nerve
terminals in the cat lumbosacral spinal dorsal horn: a dopamine-B-hydroxylase
immunocytochemical study. Brain Research 563, 329-333. (Co-author; initiated and supervised
experimental work reported). ||
17.Todd, A.J., Maxwell. D.J. and Brown, A.G. (1991) Relationships between hair-follicle afferent
axons and glycine-immunoreactive profiles in cat dorsal horn. Brain Research 564,132-137.
(Co-author; collaborative study with A. Todd). ||
18.Maxwell, D.J., Christie, W.M., Brown, A.G., Ottersen, O.P. and Storm-Mathisen, J. (1992)
Direct observations of synapses between L-glutamate-immunoreactive boutons and identified
spinocervical tract neurones in the spinal cord of the cat. J. Comp. Neurol. 326, 485-500.
(Author; initiated and performed bulk of experimental work reported). ||
19.Doyle, C.A. and Maxwell, D.J. (1993) Direct catecholaminergic innervation of postsynaptic
dorsal column neurons in the cat spinal cord. J. Comp. Neurol. 331, 434-444. (Co-author;
initiated and supervised experimental work reported). ||
20.Doyle, C.A. and Maxwell, D.J. (1993) Neuropeptide Y- immunoreactive terminals form axo¬
axonic synaptic arrangements in the substantia gelatinosa (lamina II) of the cat spinal dorsal
horn. Brain Research 603, 157-161. (Co-author; initiated and supervised experimental work
reported). ||
21.Maxwell, D.J., Christie, W.M., Brown, A.G., Ottersen, O.P. and Storm-Mathisen, J. (1993)
Identified hair follicle afferent boutons in the spinal cord of the cat are enriched with Lglutamate-like immunoreactivity. Brain Research 606, 156-161. (Author; initiated and
performed bulk of experimental work reported). ||
22.Doyle, C.A. and Maxwell, D.J. (1994) Light- and electron-microscopic analysis of
neuropeptide Y-immunoreactive profiles in the cat spinal dorsal horn. Neuroscience 61, 107-
121. (Co-author; initiated and supervised experimental work reported). ||
23.Doyle, C.A. and Maxwell, D.J. (1994) Catecholaminergic innervation of the lateral cervical
nucleus: a correlated light and electron microscopic analysis of tyrosine hydroxylaseimmunoreactive axons in the cat. Neuroscience 61, 381-389. (Co-author; initiated and
supervised experimental work reported). ||
24.Maxwell, D.J., Ottersen, O.P. and Storm-Mathisen, J. (1995) Synaptic organization of
excitatory and inhibitory boutons associated with spinal neurons which project through the
dorsal columns of the cat. Brain Research 676, 103-112. (Author; initiated and performed bulk
of experimental work reported). ||
25.Jankowska, E., Maxwell, D.J., Dolk, S., Krutki, P. Belichenko, P.V. and Dahlstrom, A. (1995)
Contacts between serotoninergic fibres and dorsal horn spinocerebellar tract neurones in the cat
and rat; a confocal microscopic study. Neuroscience, 67,477-487. (Co-author; collaborative
study with E. Jankowska. Performed much of experimental work reported). ||
26.Maxwell, D.J., Todd,A.J. and Kerr, R. (1995) Colocalization of glycine and GABA in
synapses on spinomedullary neurons. Brain Research 690, 127-132. (Author; initiated and
performed bulk of experimental work reported). ||
27.Maxwell, D.J. and Jankowska, E. (1996) Synaptic relations between serotonin-immunoreactive
axons and dorsal horn spinocerebellar tract cells in the cat spinal cord. Neuroscience, 70, 247-
253. (Author; collaborative study with E. Jankowska. initiated and performed morphological
aspects of experimental work reported). ||
28.McGonigle, D.J., Maxwell, D.J., Shehab, S.A.S. and Kerr,R. (1996) Evidence for the presence
of neurokinin-1 receptors on dorsal horn spinocerebellar tract cells in the rat. Brain Research,
742, 1-9. (Author; initiated, supervised and performed experimental work reported). ||
29.Maxwell, L. Maxwell. D.J., Nielson, M. and Kerr. R. (1996) A confocal microscopic survey
of serotoninergic axons in the lumbar spinal cord of the rat: colocalization with glutamate
decarboxylase and neuropeptides. Neuroscience 75: 471-480(Author; initiated, supervised and
performed experimental work reported). ||
30.Maxwell, D.J., Kerr, R., Jankowska, E. and Riddell, J.S. (1997) Synaptic connections of dorsal
horn group II interneurons: synapses formed with the interneurons and by their axon
collaterals. J.Comp. Neurol. 380: 51-69 (Author; collaborative study with E. Jankowska.
initiated and performed morphological aspects of experimental work reported). ||
31.Patel, R., Kerr, R. and Maxwell, D.J. (1997) Absence of co-localized glutamic acid
decarboxylase and neuropeptides in noradrenergic axons of the rat spinal cord. Brain Res. 749:
164-169. (Author; initiated, supervised and performed experimental work reported). ||
32.Jankowska E., Maxwell, D.J. Dolk, S. and Dahlstrom, A. (1997) A confocal and electron
microscopic study of contacts between 5-HT fibres and feline dorsal horn interneurons in
pathways from muscle afferents J.Comp. Neurol. 387, 430-438 (Co-author; collaborative study
with E. Jankowska. initiated and performed morphological aspects of experimental work
reported). ||
33.Pollock, R., Kerr, R. and Maxwell. D.J. (1997) An immunocyochemical investigation ofthe
relationship between substance P and the neurokinin-1 receptor in the lateral horn of the rat
thoracic spinal cord. Brain Res. 777, 22-30 (Author; initiated, supervised and performed
experimental work reported).
34.Spike, R.C., Kerr, R., Maxwell. D.J. and Todd, A.J. (1998) GluRl and GluR2/3 subunits of the
AMPA-type glutamate receptor are associated with particular types of neuron in laminae I-III
of the spinal dorsal horn of the rat, Eur. J. Neurosci. 10,324-333. (Co-author; collaborative
study with A. Todd. Performed some aspects of experimental work reported). ||
35.Welton J., Stewart W., Kerr R. and Maxwell D.J., (1999) Differential expression of the
muscarinic m2 acetylcholine receptor by small and large motoneurons of the rat spinal cord.
Brain Reserarch 817, 215-219 (Author; initiated, supervised and performed experimental work
reported). ||
36.Maxwell D.J. and Riddell J.S. (1999) Axoaxonic synapses on terminals of group II muscle
afferent axons in the spinal cord of the cat. Eur. J. Neurosci. 11, 2151-2159 (Author; initiated
and performed bulk of experimental work reported) ||
37.Maxwell, D.J., Riddell J.S. and Jankowska, E. (2000) Serotoninergic and noradrenergic axonal
contacts associated with premotor interneurons in spinal pathways from group II muscle
afferents. Eur. J. Neurosci .12,1271-1280. (Author; collaborative study with E. Jankowska.
initiated and performed morphological aspects of experimental work reported). ||
38.Gladden, M.H., Maxwell, D.J., Sahal, A. and Jankowska, E. (2000) Coupling between
serotoninergic and noradrenergic neurones and gamma motoneurones in the cat J.Physiol 527,
213-223.. (Co-author; collaborative study with E. Jankowska. Performed morphological
aspects of experimental work reported). ||
39.Stewart, W. and Maxwell, D.J. (2000) Morphological evidence for selective modulation by
serotonin of a sub-population of dorsal horn cells which possess the neurokinin-1 receptor.
Eur. J. Neurosci. 12, 4583-4588. (Co-author; initiated and supervised experimental work
reported). ||
40.Hammar, I. and Maxwell, D.J. (2002) Serotoninergic and Noradrenergic axons make contacts
with neurons of the ventral spinocerebellar tract in the cat. J. Comp. Neurol. 443, 310-319.
(Co-author; initiated, supervised and performed aspects of experimental work reported). ||
41.Cheunsuang, O., Maxwell, D.J. and Morris, R., (2002) Spinal lamina I neurones which express
neurokinin 1 receptors: Elecctrophysiological properties, responses to primary afferent
stimulation and effects of a selective p-opioid receptor agonist. Neuroscience. Ill, 423-434.
(Co-author; collaborative study with R. Morris. Performed morphological aspects of
experimental work reported). ||
42.0lave, M.J. Puri, N. Kerr, R. and Maxwell, D.J. (2002) Myelinated and unmyelinated primary
afferent axons form contacts with cholinergic interneurons in the spinal dorsal horn. Exp. Brain
Res. 145: 448-456. (Author; initiated, supervised and performed aspects experimental work
reported). ||
43.Sutherland, F.I., Bannatyne, B.A., Kerr, R., Riddell, J.S. and. Maxwell,D.J. (2002)
Inhibitory amino acid transmitters associated with axons in presynaptic apposition to cutaneous
primary afferent axons in the cat spinal cord. J. Comp. Neurol. 452: 154-162. (Author;
initiated, supervised and performed aspects experimental work reported). ||
44.0lave, M.J. and Maxwell. D.J. (2002) An investigation of neurons that possess the a2cadrenergic receptor in the rat dorsal horn. Neuroscience, 115, 31-40. (Co-author; initiated and
supervised experimental work reported). ||
45.Todd, A.J., Hughes, D.I.. Polgar, E., Nagy, G.G., Mackie, M., Ottersen, O.P. and Maxwell,
D.J. (2003) The expression of vesicular glutamate transporters VGLUT1 and VGLUT2 in
neurochemically-defined axonal populations in the rat spinal cord with emphasis on the dorsal
horn. Eur. J. Neuroscience. 17, 13-27. (Co-author; supervised aspects of experimental work
reported). ||
46.Maxwell, D. J., Kerr, R., Rashid S. and Anderson E. (2003) Characterisation of axon terminals
in the rat dorsal horn that are immunoreactive for serotonin 5-HT3A receptor subunits. Exp.
Brain Res. 149, 114-124. (Author; initiated, supervised and performed aspects experimental
work reported). ||
47. Olave, M.J. and Maxwell, D.J. (2003) Axon terminals possessing the a2c-adrenergic receptor
in the rat dorsal horn are predominantly excitatory. Brain Res. 965, 269-273. (Co-author;
initiated and supervised experimental work reported). ||
48.Polgar, E., Hughes, D.I., Riddell, J.S., Maxwell, D.J., Puskar, Z. and Todd, A.J. (2003)
Selective loss ofGABAergic or glycinergic is not necessary for the development of thermal
hyperalgesia in the chronic constriction model of neuropathic pain. Pain. 104, 299-239. (Co-author; collaborative study with A. Todd. Supervised some aspects of experimental work
reported). ||
49.Stewart, W. and Maxwell, D.J. (2003) Distribution and organisation of dorsal horn neuronal
cell bodies that possess the muscarinic m2 acetylcholine receptor. Neuroscience 119, 121-135.
(Co-author; initiated and supervised experimental work reported). ||
50.Mackie. M., Hughes, D.I., Maxwell, D.J., Tillakaratine, N.J.K. and Todd, A.J. (2003)
Distribution and colocalisation of glutamate decarboxylase isoforms in the rat spinal cord.
Neuroscience 119, 461-472. (Co-author; collaborative study with A. Todd. Supervised and
performed some aspects of experimental work reported). ||
51 .Olave, M.J. and Maxwell, D.J. (2003) Neurokinin-1 projection cells in the rat dorsal horn
receive synaptic contacts from axons that possess a.2c-adrenergic receptors J. Neurosci. 23,
6837-6846. (Co-author; initiated and supervised experimental work reported). ||
52.Bannatyne, B.A., Edgley, S.A., Hammar, I., Jankowska, E. and Maxwell D.J. (2003) Networks
of inhibitory and excitatory commissural interneurons mediating crossed reticulospinal
actions. Eur. J. Neurosci. 18, 2273-2284. (Author; collaborative study with E. Jankowska.
initiated and performed morphological aspects of experimental work reported). ||
53.Hammar, I., Bannatyne, B.A. Maxwell, D.J., Edgley, S. A. and Jankowska, E. (2004) The
actions of monoamines and distribution of noradrenergic and serotoninergic contacts on
different subpopulations of commissural interneurons in the cat spinal cord. Eur. J. Neurosci.
19, 1305-1316. (Co-author; collaborative study with E. Jankowska. Performed and supervised
morphological aspects of experimental work reported). ||
54.Olave, M.J. and Maxwell, D.J. (2004) Axon terminals possessing a2c-adrenergic receptors
densely innervate , neurons in the rat lateral spinal nucleus which respond to noxious
stimulation. Neuroscience 126, 391-403 (Co-author; initiated and supervised experimental
work reported)
55.Dougherty, K.J. Bannatyne, B.A., Jankowska, E., Krutki, P. and Maxwell D.J. (2005)
Membrane receptors involved in Modulation of responses of spinal dorsal horn interneurons
evoked by feline group II muscle afferents. J. Neurosci. 25, 584-593. (Co-author; collaborative
study with E. Jankowska. Supervised morphological aspects of experimental work reported). ||
56.Conte, D., Legg, E. D., McCourt, A. C., Silajdzic E.,, Nagy, G. G. and Maxwell. D.J. (2005)
Transmitter content, origins and connections of axons in the spinal cord that possess 5-HT3
receptors. Neuroscience, 134, 165-173. (Author; initiated, supervised and performed aspects
experimental work reported). ||
57.Wilson JM, Hartley R, Maxwell DJ, Todd AJ, Lieberam I, Kaltschmidt JA, Yoshida Y, Jessell
TM, Brownstone RM (2005) Conditional rhythmicity of ventral spinal interneurons defined by
expression of the Hb9 homeodomain protein. J Neurosci 25: 5710-5719 (Co-author;
collaborative study with R. Brownstone, A. Todd and T. Jessell. Performed morphological
aspects of experimental work reported). ||
58.Hughes DI, Mackie M. Nagy GG, Riddell JS, Maxwell DJ, Szabo G, Erdelyi F, Veress G,
Szucs P, Antal M, Todd AJ (2005) P boutons in lamina IX ofthe rodent spinal cord express
high levels of glutamic acid decarboxylase-65 and originate from cells in deep medial dorsal
horn. Proc Natl Acad Sci USA. 102: 9038-9043. (Co-author; collaborative study with A.
Todd. Supervised and performed some aspects of experimental work reported). ||
59.Bannatyne. B.A., Edgley, S.A., Hammar, I., Jankowska, E. and Maxwell D.J. (2006)
Differential projections of excitatory and inhibitory dorsal horn interneurons relaying
information from group II muscle afferents in the cat spinal cord. J. Neurosci. 26: 2871-2880
(Co-author; collaborative study with E. Jankowska. Performed, initiated and supervised
morphological aspects of experimental work reported). ||
60.Erika Polgar, Suzanne Thomson, David J. Maxwell, Khulood Al-Khater and Andrew J. Todd
(20
Transient electroosmotic flow of general Maxwell fluids through a slit microchannel
No full textUsing Laplace transform method, semi-analytical solutions are presented for transient electroosmotic flow of Maxwell fluids between micro-parallel plates. The solution involves solving the linearized Poisson-Boltzmann equation, together with the Cauchy momentum equation and the Maxwell constitutive equation considering the depletion effect produced by the interaction between macro-molecules of the Maxwell fluids and the channel surface. The overall flow is divided into depletion layer and bulk flow outside of depletion layer. In addition, the Maxwell stress is incorporated to describe the boundary condition at the interface. The velocity expressions of these two layers were obtained respectively. By numerical computations of inverse Laplace transform, the influences of viscosity ratio mu, density ratio rho, dielectric constant ratio of layer II to layer I, relaxation time , interface charge density jump Q, and interface zeta potential difference on transient velocity amplitude are presented
SIM(1)–VSR Maxwell–Chern–Simons electrodynamics
No full textAbstractIn this paper we propose a very special relativity (VSR)-inspired generalization of the Maxwell–Chern–Simons (MCS) electrodynamics. This proposal is based upon the construction of a proper study of the SIM(1)–VSR gauge-symmetry. It is shown that the VSR nonlocal effects present a significant and healthy departure from the usual MCS theory. The classical dynamics is analysed in full detail, by studying the solution for the electric field and static energy for this configuration. Afterwards, the interaction energy between opposite charges is derived and we show that the VSR effects play an important part in obtaining a (novel) finite expression for the static potential
Perturbations in the Earth's rotation induced by internal density anomalies: implications for sea-level fluctuations
No full textThe effects of internal mass anomalies on the Earth's rotation are analyzed within the framework of linearized Liouville equations and Maxwell rheology for the mantle. Our approach is appropriate for a simplified modeling of subduction. Sea-level fluctuations induced by long-term rotational instabilities are also considered. -from Author
The London Market Excess of Loss Spiral
No full textThis thesis explores the London Market Excess of Loss Spiral (“LMX Spiral”), a phenomenon based upon excess of loss reinsurance contracts that developed within the London reinsurance market of the 1980s. The unwinding of the LMX Spiral was a key factor in the crisis the Lloyd’s insurance market had to face in the early 1990s. However, whilst the crisis resulted in a wave of litigation in the English courts, there is no legal appraisal of the additional element of risk brought by the LMX Spiral itself. The case law instead focuses on the duties of the underwriters and various agents that fuelled its development.This situation is unsatisfactory for two reasons. Firstly, reinsurance spirals are a potential side-effect of XL reinsurance markets and therefore other spirals may develop in the future. Secondly, this thesis shows that once a reinsurance spiral reaches a certain point, it becomes unsustainable, generating instability within the relevant reinsurance market.This thesis provides a detailed legal appraisal of reinsurance spirals and a new analysis of excess of loss reinsurance contracts. The first part sets out the relevant legal principles and describes the LMX Spiral and its impact; listing, for the first time, the “Spiral Effects” identified through reports and actuarial models. The second part reviews the case law and assesses the legal nature of the excess of loss “Spiral Contracts” at the core of any reinsurance spiral, concluding that the Spiral Effects can distort the Spiral Contracts to the point where they become simple contracts of indemnity. The third part explores the nature of excess of loss reinsurance in light of the review of the Spiral Contracts, submitting that excess of loss reinsurance contracts cover both the liability of the reinsured and the relevant insured peril
State-relevant Maxwell's equation from Kaluza-Klein theory
No full textWe study a five-dimensional perfect fluid coupled with Kaluza-Klein gravity. By dimensional reduction, a modified form of Maxwell's equation is obtained, which is relevant to the equation of state of the source. Since the relativistic magnetohydrodynamics and the three-dimensional formulation are widely used to study space matter, we derive the modified Maxwell's equations and relativistic magnetohydrodynamics in 3+1 form. We then take an ideal Fermi gas as an example to study the modified effect, which can be visible under high-density or high-energy conditions, while the traditional Maxwell's equation can be regarded as a result in the low density and low temperature limit. We also indicate the possibility to test the state-relevant effect of Kaluza-Klein theory in a telluric laboratory.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000251327400053&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Astronomy & AstrophysicsPhysics, Particles & FieldsSCI(E)0ARTICLE10null7
Hydrodynamics with conserved current via AdS/CFT correspondence in the Maxwell-Gauss-Bonnet gravity
No full textUsing the AdS/CFT correspondence, we study the hydrodynamics with conserved current from the dual Maxwell-Gauss-Bonnet gravity. After constructing the perturbative solution to the first order based on the boosted black brane solution in the bulk Maxwell-Gauss-Bonnet gravity, we extract the stress tensor and conserved current of the dual conformal fluid on its boundary, and also find the effect of the Gauss-Bonnet term on the dual conformal fluid. Our results show that the Gauss-Bonnet term can affect the parameters such as the shear viscosity eta, entropy density s, thermal conductivity kappa and electrical conductivity sigma. However, it does not affect the so-called Wiedemann-Franz law which relates kappa to sigma, while it affects the ratio eta/s. In addition, another interesting result is that eta/s can also be affected by the bulk Maxwell field in our case, which is consistent with some previous results predicted through the Kubo formula. Moreover, the anomalous magnetic and vortical effects by adding the Chern-Simons term are also considered in our case in the Maxwell-Gauss-Bonnet gravity.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000291259200009&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Astronomy & AstrophysicsPhysics, Particles & FieldsSCI(E)20ARTICLE12null8
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