186 research outputs found
2,2-Dichloro-N-(3,4-dimethylphenyl)acetamide
In the title compound, C10H11Cl2NO, the N—H bond is syn to the 3-methyl substituent in the aromatic ring, similar to that observed in N-(3,4-dimethylphenyl)acetamide and to the 3-chloro substituent in 2,2-dichloro-N-(3,4-dichlorophenyl)acetamide, and contrasting with the anti conformation observed for the 3-methyl substituent in 2,2,2-trichloro-N-(3,4-dimethylphenyl)acetamide. On the other hand, it is anti to the C=O bond. An intermolecular N—H⋯O hydrogen bond links molecules into infinite chains along the b axis
Care mapping in clinical neuroscience settings: Cognitive impairment and dependency.
Person-centred care can improve the well-being of patients and is therefore a key driver in healthcare developments in the UK. The current study aims to investigate the complex relationship between cognitive impairment, dependency and well-being in people with a wide range of acquired brain and spinal injuries. Sixty-five participants, with varied acquired brain and spinal injuries, were selected by convenience sampling from six inpatient clinical neuroscience settings. Participants were observed using Dementia Care Mapping - Neurorehabilitation (DCM-NR) and categorised based on severity of cognitive impairment. A significant difference in the behaviours participants engaged in, their well-being and dependency was found between the severe cognitive impairment group and the mild, moderate or no cognitive impairment groups. Dependency and cognitive impairment accounted for 23.9% of the variance in well-ill-being scores and 17.2% of the variance in potential for positive engagement. The current study highlights the impact of severe cognitive impairment and dependency on the behaviours patients engaged in and their well-being. It also affirms the utility of DCM-NR in providing insights into patient experience. Consideration is given to developing DCM-NR as a process that may improve person-centred care in neuroscience settings
Ocular medicines in children: the regulatory situation related to clinical research
<p>Abstract</p> <p>Background</p> <p>Many ocular medications are prescribed for paediatric patients, but the evidence for their rational use is very scant. This study was planned to compare the availability and the licensing status of ocular medications marketed in Italy, the United Kingdom (UK), and the United States of America (USA) related to the amount of published and un-published RCTs testing these drugs in the paediatric population.</p> <p>Methods</p> <p>A quantitative analysis was performed to evaluate the number of ocular medications with a paediatric license in Italy, the UK, and the USA. A literature search was also performed in MEDLINE, EMBASE, and The Cochrane Central Register of Controlled Trials for randomized controlled trials (RCTs) on ophthalmic pharmacological therapy in children aged < 18 years, published up to December 2010. A search in the international clinical trial registries, the list of paediatric investigation plans (PIPs) approved by European Medicines Agency (EMA), and the table of medicines with new paediatric information approved by Food and Drug Administration (FDA) was also performed.</p> <p>Results</p> <p>In all, of 197 drugs identified, 68 (35%) single drugs are licensed for paediatric use at least in one considered country, while 23 (12%) were marketed in all three countries. More specifically, in Italy 43 single drugs (48% of those marketed) had a paediatric license, while 39 (64%) did in the UK and 22 (54%) did in the USA. Only 13 drugs were marketed with a paediatric license in all countries.</p> <p>The percentage of drugs licensed for paediatric use and for which at least one RCT had been performed ranged between 51% in Italy and 55% in the USA. No published RCTs were found for 11 (48%) drugs licensed for paediatric use in all three countries. In all, 74 (35%) of the retrieved RCTs involved mydriatic/cycloplegic medications.</p> <p>A total of 62 RCTs (56% completed) on 46 drugs were found in the international clinical trial registries. Cyclosporin and bevacizumab were being studied in many ongoing trials. Twenty-six drugs had new paediatric information approved by FDA based on new paediatric clinical trials, while only 4 PIPs were approved by EMA.</p> <p>Conclusions</p> <p>There is a pressing need for further research and clinical development in the pediatric ophthalmic area, where effective up-to-date treatments, and additional research and education on use in children, remain priorities.</p
Application of microbiological assay to determine pharmaceutical equivalence of generic intravenous antibiotics
Synthesis, isomerisation and biological properties of mononuclear ruthenium complexes containing the bis[4(4 '-methyl-2,2 '-bipyridyl)]-1,7-heptane ligand
A series of mononuclear ruthenium(II) complexes containing the tetradentate ligand bis[4(4’-methyl-2,2’-
bipyridyl)]-1,7-heptane have been synthesised and their biological properties examined. In the synthesis
of the [Ru(phen’)(bb7)]2+ complexes (where phen’ = 1,10-phenanthroline and its 5-nitro-, 4,7-dimethyland
3,4,7,8-tetramethyl- derivatives), both the symmetric cis-α and non-symmetric cis-β isomers
were formed. However, upon standing for a number of days (or more quickly under harsh conditions) the
cis-β isomer converted to the more thermodynamically stable cis-α isomer. The minimum inhibitory concentrations
(MIC) and the minimum bactericidal concentrations (MBC) of the ruthenium(II) complexes
were determined against six strains of bacteria: Gram-positive Staphylococcus aureus (S. aureus) and
methicillin-resistant S. aureus (MRSA); and the Gram-negative Escherichia coli (E. coli) strains MG1655,
APEC, UPEC and Pseudomonas aeruginosa (P. aeruginosa). The results showed that the [Ru(5-NO2phen)-
(bb7)]2+ complex had little or no activity against any of the bacterial strains. By contrast, for the other cisα-[Ru(phen’)(bb7)]2+
complexes, the antimicrobial activity increased with the degree of methylation. In
particular, the cis-α-[Ru(Me4phen)(bb7)]2+ complex showed excellent and uniform MIC activity against all
bacteria. By contrast, the MBC values for the cis-α-[Ru(Me4phen)(bb7)]2+ complex varied considerably
across the bacteria and even within S. aureus and E. coli strains. In order to gain an understanding of the
relative antimicrobial activities, the DNA-binding affinity, cellular accumulation and water–octanol partition
coefficients (log P) of the ruthenium complexes were determined. Interestingly, all the [Ru(phen’)-
(bb7)]2+ complexes exhibited stronger DNA binding affinity (Ka ≈ 1 × 107 M−1
) than the well-known DNAintercalating
complex [Ru(phen)2(dppz)]2+ (where dppz = dipyrido[3,2-a:2’,3’-c]phenazine)
Synthesis, Antibacterial Studies and Crystal Structures of Tridentate Schiff Base Ligand and It’s Cobalt(III) Complex
The Importance of Sustained Grassland and Environmental Research:A Case Study From North Wyke Research Station, UK, 1982-2017
This chapter reviews contributions made to agricultural and environmental science and practice from research on temperate grassland carried out from 1982 to present at
Rothamsted Research’s North Wyke Research Station, Devon, UK. It describes the evolution of the research program and demonstrates the importance of sustained, interdisciplinary, and collaborative research. North Wyke has maintained a clear research focus,alongside an ability to adapt to changing grassland and environmental research needs and funding sources, and despite having changed affiliations on several occasions. The substantial contribution to agricultural and environmental science arising from the
research station has influenced and continues to influence farm practice, research, and policy nationally and internationally. Some key topics have included nutrient cycling, farm waste management, gaseous emissions, biodiversity, grazing management,
animal production (meat and milk), and forage quality. Currently, North Wyke Research Station is leading the way on taking increasingly holistic approaches to
researching more efficient, sustainable approaches to grazing-livestock agricultural production. This involves the use of world-leading, facilities such as the North Wyke Farm Platform, comprising three farmlets, designed to test the productivity and environmental sustainability of contrasting temperate grassland beef and sheep systems. Future perspectives
highlight key challenges facing the agricultural industry including climate change mitigation and adaptation, and the growing world population. Opportunities exist to tackle these challenges through technological advances, but also through increased integration of agricultural, environmental, economic and social research. North Wyke Research Station provides an example of a research facility where such challenges can be addressed
Solventothermal Synthesis and Structure of Lamellar Alkali Metal Selenidostannates(IV) A4Sn4Se10·xH2O with 20- (A=Cs; x=3.2) and 36-Membered Pores (A=K, Rb; x=4.5, 1.5)
Synthesis, Crystal Structures, and Nonlinear Optic and Thermal Properties of Two Diiodocarbazole Derivatives
Synthesis, structure and properties of a nickel coordination polymer with 3D supramolecular framework
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