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1.
Sci Data ; 6(1): 259, 2019 11 05.
Artículo en Inglés | MEDLINE | ID: mdl-31690719

RESUMEN

Here, we determine annual estimates of occupancy and species trends for 5,293 UK bryophytes, lichens, and invertebrates, providing national scale information on UK biodiversity change for 31 taxonomic groups for the time period 1970 to 2015. The dataset was produced through the application of a Bayesian occupancy modelling framework to species occurrence records supplied by 29 national recording schemes or societies (n = 24,118,549 records). In the UK, annual measures of species status from fine scale data (e.g. 1 × 1 km) had previously been limited to a few taxa for which structured monitoring data are available, mainly birds, butterflies, bats and a subset of moth species. By using an occupancy modelling framework designed for use with relatively low recording intensity data, we have been able to estimate species trends and generate annual estimates of occupancy for taxa where annual trend estimates and status were previously limited or unknown at this scale. These data broaden our knowledge of UK biodiversity and can be used to investigate variation in and drivers of biodiversity change.


Asunto(s)
Biodiversidad , Dinámica Poblacional/tendencias , Animales , Aves , Mariposas Diurnas , Ecosistema , Invertebrados , Líquenes , Reino Unido
2.
Plants (Basel) ; 8(8)2019 Jul 24.
Artículo en Inglés | MEDLINE | ID: mdl-31344913

RESUMEN

The over-reliance on the herbicide glyphosate for knockdown weed control in fallows under minimum and zero-till cropping systems has led to an increase in populations of glyphosate-resistant weeds. Echinochloa colona and Chloris virgata are two major grass weeds in the cropping regions of northern New South Wales and southern Queensland, Australia, that have become harder to kill due to a steady rise in the occurrence of glyphosate-resistant weed populations. Therefore, to help growers contain these hard to kill fallow weeds, an alternate approach to glyphosate application is needed. With this purpose in mind, a pot study was carried out during the summer seasons of 2015 and 2016 at the Tamworth Agricultural Institute, Tamworth, NSW, Australia, to evaluate the efficacy of tank mixtures and sequential applications of Group H (4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor), Group C (inhibitors of photosynthesis at photosystem II), Group A (ACCase inhibitors) and Group L (photosystem I inhibitor) herbicides on late tillering E. colona and C. virgata plants. These herbicide groups are a global classification by the Herbicide Resistance Action Committee. Highly effective results were achieved in this study using combinations of Groups H, C, A and L herbicides applied as tank mixtures for controlling large E. colona plants. Additionally, sequential applications of Group H, C and A herbicides followed by (fb) paraquat were shown to be very effective on large E. colona plants. Late tillering C. virgata plants were generally well controlled by tank mixtures, and sequential applications proved to be highly effective on this grass weed as well. Haloxyfop in combination with paraquat as a tank mixture, via sequential application or as a stand-alone treatment, was highly effective for C. virgata control; however, using combinations of herbicide groups is the preferred choice when combating herbicide resistant weed populations. There was a clear synergy shown using Group H, Group C and Group A herbicides in combination with the Group L herbicide paraquat in this study for controlling advanced E. colona and C. virgata plants. These combinations were shown to be successful on plants grown under glasshouse conditions; however; these treatments would need to be tested on plants grown in a field situation to show whether they will be a useful solution for farmers who are trying to control these weeds in fallow.

3.
Bioorg Med Chem Lett ; 22(1): 532-6, 2012 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-22094028

RESUMEN

Optimisation of a series of pyrazole inhibitors of the human FPR1 receptor has been achieved. The use of an in vitro media loss assay was utilised to identify sub-series with more robust DMPK profiles. These were subsequently improved to generate analogues with attractive overall profiles.


Asunto(s)
Pirazoles/síntesis química , Pirazoles/farmacología , Receptores de Formil Péptido/antagonistas & inhibidores , Animales , Química Farmacéutica/métodos , Química Física/métodos , Diseño de Fármacos , Hepatocitos/citología , Humanos , Concentración 50 Inhibidora , Masculino , Microsomas Hepáticos/metabolismo , Modelos Químicos , Ratas , Ratas Sprague-Dawley , Receptores de Formil Péptido/química
5.
J Med Chem ; 46(6): 913-6, 2003 Mar 13.
Artículo en Inglés | MEDLINE | ID: mdl-12620067

RESUMEN

The discovery of a novel class of nitric oxide synthase (NOS) inhibitors, 2-substituted 1,2-dihydro-4-quinazolinamines, and the related 4'-aminospiro[piperidine-4,2'(1'H)-quinazolin]-4'-amines is described. Members of both series exhibit nanomolar potency and high selectivity for the inducible isoform of the enzyme (i-NOS) relative to the constitutive isoforms in vitro. Efficacy in acute and chronic animal models of inflammatory disease following oral administration has also been demonstrated using these compounds.


Asunto(s)
Inhibidores Enzimáticos/síntesis química , Óxido Nítrico Sintasa/antagonistas & inhibidores , Quinazolinas/síntesis química , Enfermedad Aguda , Administración Oral , Aminas/síntesis química , Aminas/química , Aminas/farmacología , Animales , Artritis Experimental/tratamiento farmacológico , Línea Celular , Enfermedad Crónica , Inhibidores Enzimáticos/química , Inhibidores Enzimáticos/farmacología , Inyecciones Intravenosas , Isoenzimas/antagonistas & inhibidores , Óxido Nítrico Sintasa de Tipo II , Quinazolinas/química , Quinazolinas/farmacología , Ratas , Compuestos de Espiro/síntesis química , Compuestos de Espiro/química , Compuestos de Espiro/farmacología , Relación Estructura-Actividad
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