9,160 research outputs found
Total synthesis and biological evaluation of the tetramic acid based natural product harzianic acid and its stereoisomers
Financial support for this project was provided by Cancer Research UK (Grant No. C21383/A6950)The bioactive natural product harzianic acid was prepared for the first time in just six steps (longest linear sequence) with an overall yield of 22%. The identification of conditions to telescope amide bond formation and a Lacey-Dieckmann reaction into one pot proved important. The three stereoisomers of harzianic acid were also prepared, providing material for comparison of their biological activity. While all of the isomers promoted root growth, improved antifungal activity was unexpectedly associated with isomers in the enantiomeric series opposite that of harzianic acid.Publisher PDFPeer reviewe
Quantum-state input-output relations for absorbing cavities
The quantized electromagnetic field inside and outside an absorbing high-
cavity is studied, with special emphasis on the absorption losses in the
coupling mirror and their influence on the outgoing field. Generalized operator
input-output relations are derived, which are used to calculate the Wigner
function of the outgoing field. To illustrate the theory, the preparation of
the outgoing field in a Schr\"{o}dinger cat-like state is discussed.Comment: 12 pages, 5 eps figure
A tutored discourse on microcontrollers, single board computers and their applications to monitor and control chemical reactions
This Tutored Discourse constitutes a preliminary exposure on how synthesis chemists can engage positively with inexpensive, low-power microcontrollers to aid control, monitoring and optimisation of chemical reactions.H2020-FETOPEN-2016-2017 programme of the European Commission (grant agreement number: 737266-ONE FLOW
First Digit Distribution of Hadron Full Width
A phenomenological law, called Benford's law, states that the occurrence of
the first digit, i.e., , of numbers from many real world sources is
not uniformly distributed, but instead favors smaller ones according to a
logarithmic distribution. We investigate, for the first time, the first digit
distribution of the full widths of mesons and baryons in the well defined
science domain of particle physics systematically, and find that they agree
excellently with the Benford distribution. We also discuss several general
properties of Benford's law, i.e., the law is scale-invariant, base-invariant,
and power-invariant. This means that the lifetimes of hadrons follow also
Benford's law.Comment: 8 latex pages, 4 figures, final version in journal publicatio
Initial monotherapy with eslicarbazepine acetate for the management of adult patients with focal epilepsy in clinical practice: a meta-analysis of observational studies
This study was funded by Laboratorios Bial, S.A. (Madrid, Spain).The authors thank Alejandro Pedromingo (Bio-estadistica.
com, Madrid, Spain) for the statistical analysis, and Isabel
San Andrés (Incimed, Madrid, Spain) for performing the literature
search. Their participation has been funded by
Laboratorios Bial, S.A. (Madrid, Spain).Aim of the study To assess the effectiveness, overall tolerability of eslicarbazepine acetate (ESL) as an initial or early monotherapy treatment of adult patients with focal epilepsy under real-world practice conditions. Materials and methods We focused on real-world longitudinal studies that included or separately reported the results of at least one of the efficacy outcomes of interest. A DerSimonian-Laird random effects model was used with the presentation of the 95% confidence intervals of the estimate Results 5 studies met our selection criteria and were included in the quantitative synthesis. All studies were observational and uncontrolled studies, and all but one were retrospective studies. The pooled proportion of patients who were seizure-free for the entire study period was 64.6% (95% CI, 45.7 to 79.8) at month 6 and 56.6% (95% CI, 50.2 to 62.8) at month 12. Pooled retention rates were 95.0% (95% CI, 90.3 to 97.5) at 6 months and 83.6% (95% CI, 73.9 to 90.1) at 12 months. The pooled proportion of patients who reported at least one adverse event was 27.2% (95% CI, 21.7 to 33.6), and the pooled proportion of patients who discontinued ESL due to adverse events was 8.9% (95% CI 6.2 to 12.6). Conclusions Our results suggest that initial or early monotherapy with ESL is effective and well-tolerated for the management of adult patients with focal epilepsy in clinical practice, with results that are at least similar to those reported in the pivotal randomized clinical trial of ESL monotherapy. No new safety signals with ESL have been identified in this systematic review.Bial Grou
Rapid, selective and stable HaloTag-Lb ADH immobilization directly from crude cell extract for the continuous biocatalytic production of chiral alcohols and epoxides
A strategy for biocatalyst immobilization in flow directly from the crude cell extract is described.EPSRC (Award Nos. EP/K009494/1 and EP/K039520/1), the German Federal Ministry of Education and Research (BMBF) within the project âMolecular Interaction Engineeringâ (funding code 031A095)
Competitiveness and sustainability: can âsmart city regionalismâ square the circle?
Increasingly, the widely established, globalisation-driven agenda of economic competitiveness meets a growing concern with sustainability. Yet, the practical and conceptual co-existenceâor fusionâof these two agendas is not always easy. This includes finding and operationalising the ârightâ scale of governance, an important question for the pursuit of the distinctly transscalar nature of these two policy fields. âNew regionalismâ has increasingly been discussed as a pragmatic way of tackling the variable spatialities associated with these policy fields and their changing articulation. This paper introduces âsmart (new) city-regionalismâ, derived from the principles of smart growth and new regionalism, as a policy-shaping mechanism and analytical framework. It brings together the rationales, agreed principles and legitimacies of publicly negotiated polity with collaborative, network-based and policy-driven spatiality. The notion of âsmartnessâ, as suggested here as central feature, goes beyond the implicit meaning of âsmartâ as in âsmart growthâ. When introduced in the later 1990s the term embraced a focus on planning and transport. Since then, the adjective âsmartâ has become used ever more widely, advocating innovativeness, participation, collaboration and co-ordination. The resulting âsmart city regionalismâ is circumscribed by the interface between the sectorality and territoriality of policy-making processes. Using the examples of Vancouver and Seattle, the paper looks at the effects of the resulting specific local conditions on adopting âsmartnessâ in the scalar positioning of policy-making
- âŠ