57 research outputs found
The Quest for Creative Jurisdiction: The Evolution of Personal Jurisdiction Doctrine of Israeli Courts Toward the Palestinian Territories
The thesis offered in this Article, marking three different stages in the development of the personal jurisdiction doctrine of Israeli courts toward the PT of the West Bank and the Gaza Strip, has two additional attributes. One concerns the doctrinal innovation in the general personal jurisdiction doctrine of Israeli courts that also took place as these different stages unfolded. The evolving status of the West Bank and the Gaza Strip over the years, together with the need of courts to reach conclusive results in the cases brought before them, made it necessary for courts to be creative in adjusting the existing rules of personal jurisdiction to apply to PT-related civil actions. This Article will illuminate these creative jurisdictional maneuvers and afford a theoretical appraisal of their significance
B NMR detection of the magnetic field distribution in the mixed superconducting state of MgB
The temperature dependence of the magnetic field distribution in the mixed
superconducting phase of randomly oriented MgB powder was probed by B NMR spectroscopy. Below the temperature of the second critical () field, K, our spectra reveal two NMR signal
components, one mapping the magnetic field distribution in the mixed
superconducting state and the other one arising from the normal state. The
complementary use of bulk magnetization and NMR measurements reveals that
MgB is an anisotropic superconductor with a Tesla
anisotropy parameter
The Quest for Creative Jurisdiction: The Evolution of Personal Jurisdiction Doctrine of Israeli Courts Toward the Palestinian Territories
The thesis offered in this Article, marking three different stages in the development of the personal jurisdiction doctrine of Israeli courts toward the PT of the West Bank and the Gaza Strip, has two additional attributes. One concerns the doctrinal innovation in the general personal jurisdiction doctrine of Israeli courts that also took place as these different stages unfolded. The evolving status of the West Bank and the Gaza Strip over the years, together with the need of courts to reach conclusive results in the cases brought before them, made it necessary for courts to be creative in adjusting the existing rules of personal jurisdiction to apply to PT-related civil actions. This Article will illuminate these creative jurisdictional maneuvers and afford a theoretical appraisal of their significance
B and Al NMR spin-lattice relaxation and Knight shift study of MgAlB. Evidence for anisotropic Fermi surface
We report a detailed study of B and Al NMR spin-lattice
relaxation rates (), as well as of Al Knight shift (K) of
MgAlB, . The obtained () and K vs. x
plots are in excellent agreement with ab initio calculations. This asserts
experimentally the prediction that the Fermi surface is highly anisotropic,
consisting mainly of hole-type 2-D cylindrical sheets from bonding
boron orbitals. It is also shown that the density of states at the Fermi level
decreases sharply on Al doping and the 2-D sheets collapse at ,
where the superconductive phase disappears
Spin-polarized oxygen hole states in cation deficient La(1-x)CaxMnO(3+delta)
When holes are doped into a Mott-Hubbard type insulator, like lightly doped
manganites of the La(1-x)CaxMnO3 family, the cooperative Jahn-Teller
distortions and the appearance of orbital ordering require an arrangement of
Mn(3+)/Mn(4+) for the establishment of the insulating canted antiferromagnetic
(for x<=0.1), or of the insulating ferromagnetic (for 0.1<x<= 0.2) ground
state. In the present work we provide NMR evidence about a novel and at the
same time puzzling effect in La(1-x)CaxMnO(3+delta) systems with cation
deficience. We show that in the low Ca-doping regime, these systems exhibit a
very strong hyperfine field at certain La nuclear sites, which is not present
in the stoichiometric compounds. Comparison of our NMR results with recent
x-ray absorption data at the Mn K edge, suggests the formation of a
spin-polarized hole arrangement on the 2p oxygen orbitals as the origin of this
effect.Comment: 10 pages, 4 Figures, submitted to PR
Reagentless enzyme electrode for malate based on modified polymeric membranes
Abstract A series of polymeric membranes have been employed as outer barriers in an amperometric malate dehydrogenase (MDH)/diaphorase (DI) or MDH/DI/NAD + /mediator enzyme electrode for the determination of malate in undiluted neutral or acidic media. MDH/DI were physically entrapped with NAD + and mediator in a mixed ester cellulose membrane. Outer membranes such as non-anionic surfactant-modified cellulose acetate/Tween-80 and unplasticised spin coated PVC/polycarbonate (PC) resin in conjunction with an ascorbate oxidase (AOD) layer were utilised. Mechanical strength, thickness studies and diffusional properties of the membranes were investigated. Hexacyanoferrate(III), 2,4-dichlorophenolindophenol (DCPI) and naphthoquinone (NQ) were tested as mediators for enzymatically produced NADH using cyclic voltammetry. Analytical utility of the sensors is demonstrated
A magnetization and B NMR study of MgAlB superconductors
We demonstrate for the first time the magnetic field distribution of the pure
vortex state in lightly doped MgAlB () powder
samples, by using B NMR in magnetic fields of 23.5 and 47 kOe. The
magnetic field distribution at T=5 K is Al-doping dependent, revealing a
considerable decrease of anisotropy in respect to pure MgB. This result
correlates nicely with magnetization measurements and is consistent with
-band hole driven superconductivity for MgB
B NMR study of pure and lightly carbon doped MgB superconductors
We report a B NMR line shape and spin-lattice relaxation rate
() study of pure and lightly carbon doped MgBC for
, 0.02, and 0.04, in the vortex state and in magnetic field of 23.5 kOe.
We show that while pure MgB exhibits the magnetic field distribution from
superposition of the normal and the Abrikosov state, slight replacement of
boron with carbon unveils the magnetic field distribution of the pure Abrikosov
state. This indicates a considerable increase of with carbon doping
with respect to pure MgB. The spin-lattice relaxation rate
demonstrates clearly the presence of a coherence peak right below in pure
MgB, followed by a typical BCS decrease on cooling. However, at
temperatures lower than K strong deviation from the BCS behavior is
observed, probably from residual contribution of the vortex dynamics. In the
carbon doped systems both the coherence peak and the BCS temperature dependence
of weaken, an effect attributed to the gradual shrinking of the
hole cylinders of the Fermi surface with electron doping.Comment: 8 pages, 6 figures, submitted to Phys. Rev.
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