2,455 research outputs found
Law and Ethics : a Midwifery Dilemma
Health care professionals are required by health care regulators to rationally and analytically resolve ethical dilemmas involving the people they encounter, putting the interests of those people first, respecting their decisions and upholding their rights. This can be a challenging task as many situations are complex and require professionals to provide care in an objective and compassionate manner regardless of their own views. Midwives and allied health professionals are directed by the Nursing and Midwifery Council's The Code: professional standards of practice and behaviour for nurses and midwives (NMC 2015) and as always, the best interests of the person they are caring for are paramount
NFFT meets Krylov methods: Fast matrix-vector products for the graph Laplacian of fully connected networks
The graph Laplacian is a standard tool in data science, machine learning, and
image processing. The corresponding matrix inherits the complex structure of
the underlying network and is in certain applications densely populated. This
makes computations, in particular matrix-vector products, with the graph
Laplacian a hard task. A typical application is the computation of a number of
its eigenvalues and eigenvectors. Standard methods become infeasible as the
number of nodes in the graph is too large. We propose the use of the fast
summation based on the nonequispaced fast Fourier transform (NFFT) to perform
the dense matrix-vector product with the graph Laplacian fast without ever
forming the whole matrix. The enormous flexibility of the NFFT algorithm allows
us to embed the accelerated multiplication into Lanczos-based eigenvalues
routines or iterative linear system solvers and even consider other than the
standard Gaussian kernels. We illustrate the feasibility of our approach on a
number of test problems from image segmentation to semi-supervised learning
based on graph-based PDEs. In particular, we compare our approach with the
Nystr\"om method. Moreover, we present and test an enhanced, hybrid version of
the Nystr\"om method, which internally uses the NFFT.Comment: 28 pages, 9 figure
PENGUATAN NILAI KARAKTER DALAM LAYANAN PENGUASAAN KONTEN UNTUK MENINGKATKAN PRESTASI AKADEMIK MAHASISWA
Penelitian ini bertujuan mengetahui peningkatan prestasi akademik mahasiswa setelah diberikan penguatan nilai-nilai karakter dalam layanan penguasaan konten. Metode penelitian yang digunakan yaitu penelitian tindakan dengan bentuk penelitian tindakan bimbingan dan konseling. Teknik pengumpul data yaitu studi dokumenter dan observasi lansung. Alat pengumpul data yang digunakan adalah dokumentasi berupa kartu hasil studi dan panduan observasi. Hasil penelitian menunjukkan bahwa penguatan nilai karakter dalam layanan penguasaan konten dapat meningkatkan prestasi akademik mahasiswa Fakultas Ilmu Pendidikan dan Pengetahuan Sosial Institut Keguruan dan Ilmu Pendidikan Persatuan Guru Republik Indonesia Pontianak
Loan insurance, market liquidity, and lending standards
We examine loan insurance when lenders can screen at origination, learn loan quality over time, and can sell loans in secondary markets. Loan insurance reduces lending standards but improves market liquidity. Lenders with worse screening ability insure, which commits them to not exploiting future private information about loan quality and improves the quality of uninsured loans traded. This externality implies insufficient insurance. A regulator achieves constrained efficiency by (i) guaranteeing a minimum price of uninsured loans to eliminate a welfare-dominated illiquid equilibrium; and (ii) subsidizing loan insurance in the liquid equilibrium. Our results can inform the design of government-sponsored mortgage guarantees
Inter-professional Learning: Innovation in Teaching and Learning for Pre-registration Student Nurses and Midwives
A requirement for all health care professionals is to work collaboratively in the provision of safe and effective care. However despite this students are not routinely involved in inter-professional learning, and are often taught in isolation within professional groupings. There is added value in inter-professional teaching and learning- evident from a resource that was developed by lecturers in nursing and midwifery. This was piloted live on an audience of pre registration nursing and midwifery students, as an mock fitness for practice hearing. Inter-professional group activities provided reflection, debate and discussion with students voting on sanctions and taking part in the panel summary and close. Feedback from both lecturers/participants (n=8) and students (n=31) indicated this was a highly valued experience. It is an innovative inter-professional learning resource, in pre-registration education for students in nursing and midwifery and will extend to post registration health care education
Collision of Two Rotating Hayward Black Holes
We investigate the spin interaction and the gravitational radiation thermally
allowed in a head-on collision of two rotating Hayward black holes. The Hayward
black hole is a regular black hole in a modified Einstein equation, and hence
it can be an appropriate model to describe the extent to which the regularity
effect in the near-horizon region affects the interaction and the radiation. If
one black hole is assumed to be considerably smaller than the other, the
potential of the spin interaction can be analytically obtained and is dependent
on the alignment of angular momenta of the black holes. For the collision of
massive black holes, the gravitational radiation is numerically obtained as the
upper bound by using the laws of thermodynamics. The effect of the Hayward
black hole tends to increase the radiation energy, but we can limit the effect
by comparing the radiation energy with the gravitational waves GW150914 and
GW151226.Comment: 25 pages, 43 figures, published version in EPJ
Amiloride reduces portal hypertension in rat liver cirrhosis
Objective This study aimed to investigate the effect of amiloride on portal hypertension. Amiloride is known to inhibit Na(+)/H(+) exchangers on activated hepatic stellate cells. Methods Liver cirrhosis in rats was induced by bile duct ligation (BDL) or thioacetamide (TAA) administration. The effects of zymosan for Kupffer cell (KC) activation or a thromboxane (TX) analogue (U46619) were tested in isolated perfused livers of cirrhotic rats and in vivo. Downstream mechanisms were investigated using Rho kinase inhibitor (Y-27632) or amiloride. Acute and chronic effects of amiloride and canrenoate on portal pressure were compared in perfused livers and in vivo. TXB(2) efflux was measured by ELISA. The phosphorylation state of moesin (p-moesin) as an indicator of Rho kinase activity and expression of the thromboxane synthase were assessed by western blot analyses. The activity of hepatic stellate cells was analysed by western blot and staining for alpha-smooth muscle actin (alpha-SMA). Results In BDL rats, KC activation via zymosan increased portal pressure. This was attenuated by the Rho kinase inhibitor Y-27632. Increased thromboxane efflux following zymosan infusion remained unaltered by Y-27632. The infusion of amiloride attenuated zymosan- and U46619-induced increases in portal perfusion pressure. In vivo, direct administration of amiloride, but not of canrenoate, lowered portal pressure. In TAA and BDL rats, treatment with amiloride for 3 days reduced basal portal pressure and KC-induced increases in portal pressure whereas canrenoate had no effect. In livers of amiloride-treated animals, the phosphorylation state of moesin and the number of alpha-SMA positive cells were reduced. Conclusions Amiloride lowers portal pressure in rat liver cirrhosis by inhibition of intrahepatic vasocontraction. Therefore, patients with cirrhosis and portal hypertension may benefit from amiloride therapy
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Heteroepitaxial growth of T-Nb2O5 on SrTiO3
There is a growing interest in exploiting the functional properties of niobium oxides in general and of the T-Nb2O5 polymorph in particular. Fundamental investigations of the properties of niobium oxides are, however, hindered by the availability of materials with sufficient structural perfection. It is expected that high-quality T-Nb2O5 can be made using heteroepitaxial growth. Here, we investigated the epitaxial growth of T-Nb2O5 on a prototype perovskite oxide, SrTiO3. Even though there exists a reasonable lattice mismatch in one crystallographic direction, these materials have a significant difference in crystal structure: SrTiO3 is cubic, whereas T-Nb2O5 is orthorhombic. It is found that this difference in symmetry results in the formation of domains that have the T-Nb2O5 c-axis aligned with the SrTiO3 s in-plane directions. Hence, the number of domain orientations is four and two for the growth on (100)s- and (110)s-oriented substrates, respectively. Interestingly, the out-of-plane growth direction remains the same for both substrate orientations, suggesting a weak interfacial coupling between the two materials. Despite challenges associated with the heteroepitaxial growth of T-Nb2O5, the T-Nb2O5 films presented in this paper are a significant improvement in terms of structural quality compared to their polycrystalline counterparts
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