Evidentialism and the Numbers Game

In this paper I introduce an objection to normative evidentialism about reasons for belief. The objection arises from difficulties that evidentialism has with explaining our reasons for belief in unstable belief contexts with a single fixed point. I consider what other kinds of reasons for belief are relevant in such cases

Comparing Ethical Concerns Of Agricultural And General Journalists

The literature specific to agricultural journalism and ethics is underdeveloped in that few case studies or surveys study agricultural journalists\u27 ethical concerns and few articles compare agricultural with general journalists\u27 ethical pressures

Oxygen-tolerant proton reduction catalysis: Much O<inf>2</inf> about nothing?

This perspective summarises strategies for avoiding adverse effects of O2 on H2-evolving enzymatic systems, molecular synthetic catalysts and catalytic surfaces.Financial support from the EPSRC (EP/H00338X/2), the Christian Doppler Research Association (Austrian Federal Ministry of Science, Research and Economy and National Foundation for Research, Technology and Development), and the OMV Group is gratefully acknowledged.This is the final version of the article. It first appeared from the Royal Society of Chemistry via http://dx.doi.org/10.1039/C5EE01167

Visible light driven hydrogen evolution with a noble metal free CuGa<inf>2</inf>In<inf>3</inf>S<inf>8</inf> nanoparticle system in water

Visible light irradiation of CGIS nanoparticles with a Ni salt displayed superior sacrificial H2 evolution activity than when employing the precious metals Pt, Rh and Ru.T.A.K. thanks the Science and Technology Development Fund (STDF) of the Arab Republic of Egypt and the British Council at Cairo for financially supporting his visit to the University of Cambridge, UK. G.A.M.H. was supported by a Cambridge Trust / Australia Poynton PhD scholarship.This is the author accepted manuscript. The final version is available from the Royal Society of Chemistry at http://dx.doi.org/10.1039/C6CY01103A

Photocatalytic hydrogen generation coupled to pollutant utilisation using carbon dots produced from biomass

Carbon dots from biomass waste as efficient photoabsorbers for sustainable and scalable coupled solar-driven H2 evolution and pollutant utilisation.Christian Doppler Research Association (Austrian Federal Ministry for Digital and Economic Affairs and the National Foundation for Research, Technology and Development) and OMV

Extension Communicators: More Important Players In An Old Game

This paper explores tentative ideas about the effects which extension communicators might have on the relationship between agri-business writers and writers and editors for farm magazines and newspaper farm departments. An open-ended questionnaire was sent to members of two professional agricultural journalist associations: Newspaper Farm Editors Association and the American Agricultural Editors Association. Responses identified advertising and public relations writers as the principal perceived source of ethical dilemmas in agricultural journalism. None identified extension communicators as a source of concern. We suggest that the availability of extension news acts as a buffer for agricultural newspaper and magazine writers, protecting them from relying more heavily on agribusiness news copy

Solar H2 generation in water with a CuCrO2 photocathode modified with an organic dye and molecular Ni catalyst.

Dye-sensitised photoelectrochemical (DSPEC) cells have emerged in recent years as a route to solar fuel production. However, fuel-forming photocathodes are presently limited by photo-corrodible narrow band gap semiconductors or the small range of available wide bandgap p-type semiconductors such as NiO that display low performance with dyes. Here, we introduce CuCrO2 as a suitable p-type semiconductor for visible light-driven H2 generation upon co-immobilisation of a phosphonated diketopyrrolopyrrole dye with a Ni-bis(diphosphine) catalyst. The hybrid CuCrO2 photocathode displays an early photocurrent onset potential of +0.75 V vs. RHE and delivers a photocurrent of 15 μA cm-2 at 0.0 V vs. RHE in pH 3 aqueous electrolyte solution under UV-filtered simulated solar irradiation. Controlled potential photoelectrolysis at 0.0 V vs. RHE shows good stability and yields a Ni catalyst-based turnover number of 126 ± 13 towards H2 after 2 h. This precious metal-free system outperforms an analogous NiO|dye/catalyst assembly and therefore highlights the benefits of using CuCrO2 as a novel material for DSPEC applications

Photoreforming of food waste into value-added products over visible-light-absorbing catalysts

Food and mixed wastes are converted into H2 and organics over CdS and carbon nitride photocatalysts.</p

Stimulus-Mediated Ultrastable Radical Formation

Organic radicals are reactive, often short-lived species typically formed through either the addition of a chemical agent or photochemical means. On account of their open-shell electronic structure they have attracted attention based upon their magnetic properties and desirable spectroscopic behaviour. Redox sensitive molecules such as viologen (V) undergo one-electron reductions to form radical species. These species hold significant potential in myriad applications but are limited as they are rapidly quenched by oxygen in air. Using methyl viologen as an example, we show that the MV radical (MV+·) can be formed through electrochemical, chemical, photochemical and a novel thermal stimulus in various Deep Eu- tectic Solvents (DES) and was found to be exceptionally stable. The conductive properties of DES allowed for fabrication of an aerobic electrochromic device through a straightforward, economical approach. Our report represents a unique approach to extend reactive radical lifetimes in air without alteration of the parent structure.J.A.M. would like to acknowledge the EPSRC for a PhD studentship (EP/K503009/1). O.A.S. acknowledges ERC Consolidator grant CAM-RIG (No.726470) and UK Engineering and Physical Sciences Research Council grant EP/L027151/1. M.F.K. and E.R. acknowledge Christian Doppler Research Association (Austrian Federal Ministry of Science, Research and Economy and the National Foundation for Research, Technology and Development), the OMV Group and the EPSRC (IAA Follow-on Fund)