123 research outputs found
N,N,N′,N′-Tetramethyl-N,N′-dipropylethane-1,2-diaminium tetrachloridocobaltate(II)
The crystal structure of the title compound, (C12H30N2)[CoCl4], is composed of discrete (C12H30N2)2+ cations and [CoCl4]2− anions. The asymmetric unit contains a half-cation and a half-anion. The atoms of the cation occupy general positions about an inversion centre, which is located at the midpoint of the central C—C bond. The Co atoms lie on a twofold rotation axis. The slightly distorted tetrahedral coordination environment around the metal atom consists of two Cl atoms and their symmetry-related pairs
Effect of slow-release FSH on embryo recovery in dairy cows
AETE, Bath, UK, 8-9 September, 2017201
N,N′-Dibutyl-N,N,N′,N′-tetramethylethane-1,2-diaminium μ-oxido-bis[trichloridoferrate(III)]
The asymmetric unit of the title compound, (C14H34N2)[Fe2Cl6O], contains one complete cation, two half-cations and two anions. The two half-cations are completed by crystallographic inversion symmetry. The FeIII atoms adopt fairly regular FeCl3O tetrahedral geometries, although the bridging Fe—O—Fe bond angles differ significantly in the two anions, which both adopt an eclipsed conformation. In the crystal, the components are linked by C—H⋯Cl and C—H⋯O interactions
Bis(tetraphenylphosphonium) di-μ-iodido-bis[diiodidotellurate(II)]
The structure of the title compound, (C24H20P)2[Te2I6], is composed of discrete PPh4
+ cations and centrosymmetric [Te2I6]2− anions. The tellurium(II) atom shows a sligthly distorted square-planar TeI4 geometry and is coordinated to two bridging and two terminal iodine atoms. The planar [Te2I6]2− ions are isolated by the cations and no intermolecular tellurium–halogen or halogen–halogen interactions are present
Oral health assessment in domiciliary care service planning of older people
ObjectivesThe aim was to examine importance and consideration of oral health‐related issues (OHRIs) during service planning by the case managers (CMs).Methods and resultsThe study was conducted in a major Finnish city. All 25 CMs, supervising over 450 domiciliary care employees who are caring for 4600 domiciliary care clients, received a multiple‐choice questionnaire with additional open‐ended questions. CMs were dichotomized by age and educational background. Differences were compared with the chi‐square test and Fisher´s exact test. Response rate was 88%. All CMs considered OHRIs important. However, OHRIs were not routinely considered during service planning, especially by the CMs with a social service than health background (0% vs 30%, P ConclusionOHRIs are not routinely considered in service planning. This study indicated a need for structured guidelines and further education for assess the need for oral home care assistance.</div
Advanced multimodal laser imaging tool for urothelial carcinoma diagnosis (AMPLITUDE)
Bladder cancer (BC) is the eleventh most diagnosed cancer worldwide. The age-standardized incidence rate (per 100 000 person/years) is 9.0 for men and 2.2 for women [1]. Urothelial carcinoma (UC) represents about 90% of all bladder tumors, thus carrying an enormous social and economic burden [2]. UCs are classified in different stages and grades, depending on their invasiveness and on their degree of cytological abnormalities. The key aspect for a positive prognosis is the early and accurate diagnosis of the lesion stage, in order to identify the most aggressive disease forms and treat them promptly. It is well known that tissue metabolism constitutes a basic mechanism, which is at the base of many pathologies, especially BC. Being able to detect and characterize tissue metabolism and molecular fingerprints at the cellular level could be a key aspect in characterizing the pathology and enabling both early detection and therapy monitoring. The new European Union Horizon 2020 project called AMPLITUDE, the ‘Advanced Multimodal Photonics Laser Imaging Tool for Urothelial Diagnosis in Endoscopy’, starting in January 2020, proposes the development of an advanced multi-modal imaging tool exploiting new laser technologies in an approach combining confocal and non-linear imaging to fulfil unmet clinical needs in terms of the specificity and accuracy of urothelial cancer diagnosis and therapy monitoring. The project is coordinated by Tampere University (Finland) and carried out in cooperation with leading European research organizations including Aston Insitute of Photonic Technologies—AIPT (UK), Consiglio Nazionale delle Ricerche—CNR (Italy), Institute of Photonic Sciences—ICFO (Spain), University of Milan-Bicocca, Modus Research and Innovation Ltd. (UK) and University of Florence (Italy), as well as industrial partners: Ampliconyx Oy (Finland), Femtonics Ltd. (Hungary), HC Photonics (Taiwan), and LEONI Fiber Optics GmbH (Germany)
Capturing complex tumour biology in vitro: Histological and molecular characterisation of precision cut slices
Precision-cut slices of in vivo tumours permit interrogation in vitro of heterogeneous cells from solid tumours together with their native microenvironment. They offer a low throughput but high content in vitro experimental platform. Using mouse models as surrogates for three common human solid tumours, we describe a standardised workflow for systematic comparison of tumour slice cultivation methods and a tissue microarray-based method to archive them. Cultivated slices were compared to their in vivo source tissue using immunohistochemical and transcriptional biomarkers, particularly of cellular stress. Mechanical slicing induced minimal stress. Cultivation of tumour slices required organotypic support materials and atmospheric oxygen for maintenance of integrity and was associated with significant temporal and loco-regional changes in protein expression, for example HIF-1α. We recommend adherence to the robust workflow described, with recognition of temporal-spatial changes in protein expression before interrogation of tumour slices by pharmacological or other means
Real-time observation of dissipative soliton formation in nonlinear polarization rotation mode-locked fibre lasers
Formation of coherent structures and patterns from unstable uniform state or noise is a fundamental physical phenomenon that occurs in various areas of science ranging from biology to astrophysics. Understanding of the underlying mechanisms of such processes can both improve our general interdisciplinary knowledge about complex nonlinear systems and lead to new practical engineering techniques. Modern optics with its high precision measurements offers excellent test-beds for studying complex nonlinear dynamics, though capturing transient rapid formation of optical solitons is technically challenging. Here we unveil the build-up of dissipative soliton in mode-locked fibre lasers using dispersive Fourier transform to measure spectral dynamics and employing autocorrelation analysis to investigate temporal evolution. Numerical simulations corroborate experimental observations, and indicate an underlying universality in the pulse formation. Statistical analysis identifies correlations and dependencies during the build-up phase. Our study may open up possibilities for real-time observation of various nonlinear structures in photonic systems
Eye Tracking-based Evaluation of User Engagement with Standard and Personalised Digital Education for Diabetic Patients
Implementation of corticosteroids in treatment of COVID-19 in the ISARIC WHO Clinical Characterisation Protocol UK: prospective, cohort study
Background: Dexamethasone was the first intervention proven to reduce mortality in patients with COVID-19 being treated in hospital. We aimed to evaluate the adoption of corticosteroids in the treatment of COVID-19 in the UK after the RECOVERY trial publication on June 16, 2020, and to identify discrepancies in care. Methods: We did an audit of clinical implementation of corticosteroids in a prospective, observational, cohort study in 237 UK acute care hospitals between March 16, 2020, and April 14, 2021, restricted to patients aged 18 years or older with proven or high likelihood of COVID-19, who received supplementary oxygen. The primary outcome was administration of dexamethasone, prednisolone, hydrocortisone, or methylprednisolone. This study is registered with ISRCTN, ISRCTN66726260. Findings: Between June 17, 2020, and April 14, 2021, 47 795 (75·2%) of 63 525 of patients on supplementary oxygen received corticosteroids, higher among patients requiring critical care than in those who received ward care (11 185 [86·6%] of 12 909 vs 36 415 [72·4%] of 50 278). Patients 50 years or older were significantly less likely to receive corticosteroids than those younger than 50 years (adjusted odds ratio 0·79 [95% CI 0·70–0·89], p=0·0001, for 70–79 years; 0·52 [0·46–0·58], p80 years), independent of patient demographics and illness severity. 84 (54·2%) of 155 pregnant women received corticosteroids. Rates of corticosteroid administration increased from 27·5% in the week before June 16, 2020, to 75–80% in January, 2021. Interpretation: Implementation of corticosteroids into clinical practice in the UK for patients with COVID-19 has been successful, but not universal. Patients older than 70 years, independent of illness severity, chronic neurological disease, and dementia, were less likely to receive corticosteroids than those who were younger, as were pregnant women. This could reflect appropriate clinical decision making, but the possibility of inequitable access to life-saving care should be considered. Funding: UK National Institute for Health Research and UK Medical Research Council
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