Results 221 to 230 of about 716,189 (248)
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Thermochemistry of Pd–In, Pd–Sn and Pd–Zn alloy systems
Thermochimica Acta, 2009The standard enthalpy of formation of several Pd-M alloys (M= In, Sn and Zn) has been measured using a high temperature direct drop calorimeter. The reliability of the calorimetric results has been determined and supported by using different analytical techniques: light optical microscopy, scanning electron microscopy equipped with electron probe ...
AMORE S +3 more
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Inside PD-1/PD-L1,2 with their inhibitors
European Journal of Medicinal Chemistry, 2023This review summarizes current knowledge in the development of immune checkpoint inhibitors, including antibodies and small molecules.
Nicolas Boisgerault, Philippe Bertrand
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Immunotherapy, 2017
Expression of PD-1 on T/B cells regulates peripheral tolerance and autoimmunity. Binding of PD-1 to its ligand, PD-L1, leads to protection against self-reactivity. In contrary, tumor cells have evolved immune escape mechanisms whereby overexpression of PD-L1 induces anergy and/or apoptosis of PD-1 positive T cells by interfering with T cell receptor ...
Kuol, Nyanbol +3 more
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Expression of PD-1 on T/B cells regulates peripheral tolerance and autoimmunity. Binding of PD-1 to its ligand, PD-L1, leads to protection against self-reactivity. In contrary, tumor cells have evolved immune escape mechanisms whereby overexpression of PD-L1 induces anergy and/or apoptosis of PD-1 positive T cells by interfering with T cell receptor ...
Kuol, Nyanbol +3 more
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Exchange splitting in Pd, Pd(Fe) and Pd(Ni)
Journal of Physics F: Metal Physics, 1986The de Haas-van Alphen effect has been used to investigate the exchange splitting on the X-ellipsoid sheet of the Fermi surface of Pd and dilute Pd(Fe) and Pd(Ni) alloys. In pure Pd the g-factor shows appreciable anisotropy which can be explained in terms of the spin-orbit interaction and an isotropic Stoner enhancement.
P T Coleridge +3 more
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Neurology, 2003
For nearly two centuries, investigating the role of heredity in Parkinson disease (PD) has been challenging. Paradoxes abound. Clinical series report that at least 10 to 15% of patients have relatives with PD. Case-control studies report from 2- to 14-fold increased risk of PD if a first-degree relative has the disease.1,2⇓ Yet twin studies do not ...
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For nearly two centuries, investigating the role of heredity in Parkinson disease (PD) has been challenging. Paradoxes abound. Clinical series report that at least 10 to 15% of patients have relatives with PD. Case-control studies report from 2- to 14-fold increased risk of PD if a first-degree relative has the disease.1,2⇓ Yet twin studies do not ...
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PD-1/PD-L1 in cardiovascular disease
Clinica Chimica Acta, 2020The PD-1/PD-L1 coinhibitory pathway has critical roles in the immune response and autoimmunity via the regulation of T cell activity. Excessive activity and high expression of this pathway suppresses the function of T cells and immunity. Recent research has indicated that tumour cells express high levels of PD-L1, which has an immunosuppressive effect ...
YunFeng, Sun +3 more
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The nature of close Pd⋯Pd and Pd⋯H(—C) contacts
Polyhedron, 1999Abstract The preparations and crystal structures of [PdCl2(R-ahaz)] (ahaz=3-aminohexahydroazepine) and [PdCl2(R-etahaz)] (etahaz=N-ethyl-3-aminohexahydroazepine) are described. Both complexes crystallise with two independent molecules stacked in “dimeric” pairs with short Pd⋯Pd contacts.
R.R Fenton, F Huq, T.W Hambley
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In vitro antibacterial activities of the fluoroquinolones PD 117596, PD 124816, and PD 127391
Diagnostic Microbiology and Infectious Disease, 1991Three new aminopyrrolidine-substituted fluorocyclopropyl quinolones--PD 117596, PD 124816, and PD 127391--were tested for in vitro antibacterial activity against 349 bacterial strains, which are primarily clinical isolates. The minimum inhibitory concentrations (MIC) in micrograms/ml required for greater than or equal to 90% of strains were 0.03-0.06 ...
M A, Cohen +5 more
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Photoinduced Face-Inversion of Conjugated Tetraene Ligands on a Pd−Pd−Pd Moiety
Journal of the American Chemical Society, 2002The linear sandwich tripalladium complexes [Pd3{Ar(CH=CH)4Ar}2[BArf]2 (Ar = Ph, p-t-Bu-C6H4, p-styryl-C6H4) undergo photoinduced isomerization involving face-inversion of the tetraene ligands. Irradiation of these complexes with visible light (>510 nm) resulted in rac (staggered sandwich) to meso (eclipsed sandwich) isomerization. The structures of rac
T. Murahashi +3 more
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Synthesis and structure of a novel Pd(0)–Pd(IV)–Pd(IV)–Pd(0) mixed-valence complex
Inorganic Chemistry Communications, 2004Abstract The interaction of PdCl2(PhCN)2 with 1,2-[PhP(H)CH2CH2CH2P(Ph)CH2]2C6H4, generated in situ from the reduction of the corresponding phosphine oxide with LiAlH4 in the presence of Me3SiCl, gave a complex mixture, from which a di- and a tetra-nuclear palladium complex 1 and 2 whose solid state structures were ascertained by X-ray ...
Wong, WT +6 more
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