Giant change of MoS optical properties along amorphous-crystalline transition: broadband spectroscopic study including the NIR therapeutic window.

This work deals with an ellipsometric study of magnetron sputtered thin MoS films. The evolution of the UV-VIS-NIR optical properties of as-deposited and subsequently annealed films is thoughtfully investigated, covering amorphous, amorphous relaxed, partially crystallized, and polycrystallized MoS films. The transition from the mixed 1T'@2H local order in the amorphous phase toward the long-range 2H order in the polycrystalline phase is systematically correlated with film optical properties.

Surface modification by high-energy heavy-ion irradiation in various crystalline ZnO facets.

Self-assembled surface nanoscale structures on various ZnO facets are excellent templates for the deposition of semiconductor quantum dots and manipulation with surface optical transparency. In this work, we have modified the surface of -, - and -plane ZnO single-crystals by high-energy W-ion irradiation with an energy of 27 MeV to observe the aspects of surface morphology on the optical properties. We kept ion fluences in the range from 5 × 10 cm to 5 × 10 cm using the mode of single-ion implantation and the overlapping impact mode to see the effect of various regimes on surface modification.

A 1D conical nanotubular TiO/CdS heterostructure with superior photon-to-electron conversion.

Herein, a new strategy to efficiently harvest photons in solar cells is presented. A solar cell heterostructure is put forward, based on a 1D conical TiO2 nanotubular scaffold of high aspect ratio, homogenously coated with a thin few nm layer of CdS light absorber using atomic layer deposition (ALD). For the first time, a large variety of conical nanotube layers with a huge span of aspect ratios was utilized and ALD was used for the preparation of a uniform CdS coating within the entire high surface area of the TiO2 nanotubes.

Optical and magneto-optical behavior of Cerium Yttrium Iron Garnet thin films at wavelengths of 200-1770 nm.

Magneto-optical cerium-substituted yttrium iron garnet (Ce:YIG) thin films display Faraday and Kerr rotation (rotation of light polarisation upon transmission and reflection, respectively) as well as a nonreciprocal phase shift due to their non-zero off-diagonal permittivity tensor elements, and also possess low optical absorption in the near-infrared. These properties make Ce:YIG useful in providing nonreciprocal light propagation in integrated photonic circuits, which is essential for accomplishing energy-efficient photonic computation and data transport architectures. In this study, 80 nm-thick Ce:YIG films were grown on Gadolinium Gallium Garnet substrates with (100), (110) and (111) orientations using pulsed laser deposition.

[Hyperosmolar hyperglycemic state].

The hyperglycemic hyperosmolar state (HHS) is a serious acute complication of diabetes decompensation, especially in type 2 diabetes (T2DM), and with critical prognosis. Primary characteristics of HHS include extreme hyperglycemia, severe dehydration (with prerenal hyperazotaemia), plasma hyperosmolarity, frequent disorders of consciousness, absent or minimum ketoacidosis (with higher values, only found in combined forms). Both DKA and HHS have a common pathogenetic mechanism, but both states are opposite extreme deviations, and the boundaries between them are not entirely clear.

Complete Permittivity Tensor in Sputtered CuFe₂O₄ Thin Films at Photon Energies between 2 and 5 eV.

This work is devoted to the systematic study of the optical and magneto-optical properties of sputter deposited CuFe₂O₄ thin films in the photon energy region between 2 and 5 eV using spectroscopic ellipsometry and magneto-optical Kerr spectroscopy. The spectral dependence of both the diagonal and off-diagonal elements of the permittivity tensor is determined. A complete picture about the electron transitions in CuFe₂O₄ is suggested in the frame of intervalence charge transfer and intersublattice charge transfer transitions.

Clinical status and B-type natriuretic peptide levels in patients with heart failure at hospital discharge.

Background And Purpose: Levels of natriuretic peptides and their changes in the course of therapy may serve as a prognostic marker of long-term survival in patients with heart failure. The authors compared natriuretic peptide levels in patients with heart failure at admission and at hospital discharge and examined the relationship between their natriuretic peptide levels and clinical status at hospital discharge.

Patients And Methods: 108 patients with acute heart failure underwent, at admission to hospital and discharge after clinical improvement, an examination consisting of a physical checkup, B-type natriuretic peptide (BNP) measurements, and echocardiography.

Evaluation of the quality of Permalloy gratings by diffracted magneto-optical spectroscopy.

Magneto-optical Kerr effect (MOKE) spectroscopy in the -1st diffraction order with p-polarized incidence is applied to study arrays of submicron Permalloy wires at polar magnetization. A theoretical approach combining two methods, the local modes method neglecting the edge effects of wires and the rigorous coupled wave analysis, is derived to evaluate the diffraction losses due to irregularities of the wire edges. A new parameter describing the quality of the edges is defined according to their contribution in the diffracted MOKE.

[Impact of acute fluid restriction on levels of natriuretic peptides in patients on a chronic dialysis program].

In order to assess an impact of acute changes in blood volume on levels of B-type natriuretic peptides (BNP and NT-proBNP) 30 patients with a heart disease and chronic renal insufficiency on chronic dialysis program were assessed. An acute fluid restriction of 3750 ml on an average lead to decreased filling of the left heart ventricle (echocardiography revealed a reduced size of the left atrium, change in E/A parameters and deceleration time, and decreased end-diastolic volume of the left ventricle). Prior to dialysis normal levels of BNP (2.

[Preoperative and postoperative care in diabetics].

The submitted paper should serve as a basis for recommended procedures of preoperative and postooperative care of diabetics. It contains the algorithm of preoperative preparation of diabetics focused on quantification of the risk of surgery. The diabetologist is the consultant of the surgeon who participates in the preparation of the patient for urgent as well as elective surgery.

[Special problems in diabetics with hypertension].

Diabetes and hypertension are independent risk factors of coronary heart disease as well as of other cardiovascular diseases, and their combination substantially enhances the risk. Hypertension is twice to four times as frequent in diabetics than in the non-diabetic population. The most frequent form is essential hypertension which affects the relatively most numerous group of the II diabetics but may occur also in type I diabetics.