337 research outputs found
Support for the Ethiopian Health Sector Development Programme (Federal Ministry of Health MDG Performance Fund)
This Annual Review draws on the findings of the HSDP IV Mid Term Review (MTR),
the FMOH’s Annual Performance Report and the Annual Review Mission. As the MDG
PF supports implementation of the HSDP IV, this Annual Review examines the
performance of the MDG PF as an instrument to achieve sector-wide progress
Using the Lives Saved Tool to estimate the number of maternal and newborn lives saved by DFID programming: 2011–2015: Technical Note: Version 4
In 2010, the United Kingdom (UK) Government Department for International
Development (DFID) announced their ‘Framework for results for reproductive, maternal and
newborn health (RMNH)’ which included several ambitious goals in relation to reproductive,
maternal and newborn health including saving 250,000 newborn and 50,000 maternal lives by
2015 (1). DFID simultaneously committed to measuring its achievements in reaching these
goals. [Introduction
Demonstration of an electrostatic-shielded cantilever
The fabrication and performances of cantilevered probes with reduced
parasitic capacitance starting from a commercial Si3N4 cantilever chip is
presented. Nanomachining and metal deposition induced by focused ion beam
techniques were employed in order to modify the original insulating pyramidal
tip and insert a conducting metallic tip. Two parallel metallic electrodes
deposited on the original cantilever arms are employed for tip biasing and as
ground plane in order to minimize the electrostatic force due to the capacitive
interaction between cantilever and sample surface. Excitation spectra and
force-to-distance characterization are shown with different electrode
configurations. Applications of this scheme in electrostatic force microscopy,
Kelvin probe microscopy and local anodic oxidation is discussed.Comment: 4 pages and 3 figures. Submitted to Applied Physics Letter
The decision to go public and the IPO underpricing with locally biased investors
We provide new evidence that local investors are peculiarly biased towards local IPO stocks. Taking the well-known investor preference for local stocks a step further, we contribute by showing that local IPOs boost stock market participation far more intensely than local listed firms. Interestingly, the effect is driven by individuals born and raised in the region, having zero effect for those who have moved to the area. Consistent with underwriters significantly under-estimating the local investors’ demand in local IPOs, the probability of a private firm to go public, the IPO underpricing and the cross-sectional volatility of IPO initial returns, increase in remote firms where the local investors’ demand in local IPOs is particularly high. Overall, our results suggest that local investors are crucial for the IPO decision
Organocatalysis and beyond: Activating reactions with two catalytic species
Since the beginning of the millennium, organocatalysis has been gaining a predominant role in asymmetric synthesis and it is, nowadays, a foundation of catalysis. Synergistic catalysis, combining two or more different catalytic cycles acting in concert, exploits the vast knowledge acquired in organocatalysis and other fields to perform reactions that would be otherwise impossible. Merging organocatalysis with photo-, metallo- and organocatalysis itself, researchers have ingeniously devised a range of activations. This feature review, focusing on selected synergistic catalytic approaches, aims to provide a flavor of the creativity and innovation in the area, showing ground-breaking examples of organocatalysts, such as proline derivatives, hydrogen bond-mediated, Cinchona alkaloids or phosphoric acids catalysts, which work cooperatively with different catalytic partners
4-Phenyl-1,2,3-triazoles as Versatile Ligands for Cationic Cyclometalated Iridium(III) Complexes
Five cationic iridium(III) complexes (1-5) were synthesized exploiting two triazole-based cyclometalating ligands, namely, 1-methyl-4-phenyl-1H-1,2,3-triazole (A) and the corresponding mesoionic carbene 1,3-dimethyl-4-phenyl-1H-1,2,3-triazol-5-yliclene (B). From the combination of these two ligands and the ancillary one, i.e., 4,4'-di-tert-butyl-2,2'-bipyridine (for 1-3) or tert-butyl isocyanide (for 4 and 5), not only the typical bis-heteroleptic complexes but also the much less explored tris-heteroleptic analogues (2 and 5) could be synthesized. The redox and emission properties of all of the complexes are effectively fine-tuned by the different ligands: (i) cyclometalating ligand A induces a stronger highest occupied molecular orbital (HOMO) stabilization compared to B and leads to complexes with progressively narrower HOMO-lowest unoccupied molecular orbital (LUMO) and redox gaps, and lower emission energy; (ii) complexes 1-3, equipped with the bipyridine ancillary ligand, display fully reversible redox processes and emit from predominantly metal-to-ligand charge transfer (MLCT) states with high emission quantum yields, up to 60% in polymeric matrix; (iii) complexes 4 and 5, equipped with high-field isocyanide ligands, display irreversible redox processes and high-energy emission from strongly ligand-centered triplets with long emission lifetimes but relatively low quantum yields (below 6%, both in room-temperature solution and in solid state). This work demonstrates the versatility of phenyl-triazole derivatives as cyclometalating ligands with different chelation modes (i.e., C<^>N and C<^>C:) for the synthesis of photoactive iridium(III) complexes with highly tunable properties
Iridium-Functionalized Cellulose Microcrystals as a Novel Luminescent Biomaterial for Biocomposites
Microcrystalline cellulose (MCC) is an emerging material with outstanding properties in many scientific and industrial fields, in particular as an additive in composite materials. Its surface modification allows for the fine-tuning of its properties and the exploitation of these materials in a plethora of applications. In this paper, we present the covalent linkage of a luminescent Ir-complex onto the surface of MCC, representing the first incorporation of an organometallic luminescent probe in this biomaterial. This goal has been achieved with an easy and sustainable procedure, which employs a Bronsted-acid ionic liquid as a catalyst for the esterification reaction of -OH cellulose surface groups. The obtained luminescent cellulose microcrystals display high and stable emissions with the incorporation of only a small amount of iridium (III). Incorporation of MCC-Ir in dry and wet matrices, such as films and gels, has been also demonstrated, showing the maintenance of the luminescent properties even in possible final manufacturers
Home Sweet Home: Analisi del “Local” Home Bias nei Fondi Comuni Italiani
Il lavoro è diretto a verificare l'esistenza di un fenomeno di local home bias consistente nella preferenza da parte dei gestori di fondi comuni di investimento italiani verso titoli di imprese a loro più vicine. Analizzando il peso dei titoli inseriti nei diversi portafogli di un campione di gestori di fondi comuni italiani rispetto ad un portafoglio che si potrebbe considerare "benchmark", il presente lavoro rileva la preferenza da parte di questi ad investire in titoli di società quotate a loro limitrofe. Attraverso un'analisi di simulazione si rileva altresì che tale comportamento apparirebbe "razionale" in quanto i gestori sembrano sfruttare in modo proficuo il vantaggio informativo relativo all'adiacenza geografica ai titoli a loro più vicini
Asymmetric Organocatalysis Accelerated via Self-Assembled Minimal Structures
Self-assembling minimalistic peptides embedded with an organocatalytic moiety were designed. By controlling the formation of fibrils via external intervention, it was shown that the activation is accelerated when the organocatalyst is in its supramolecular state. The effect of the accelerated catalysis was demonstrated in a Michael benchmark reaction
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