Recovery of dialysis patients with COVID-19 : health outcomes 3 months after diagnosis in ERACODA

Background. Coronavirus disease 2019 (COVID-19)-related short-term mortality is high in dialysis patients, but longer-term outcomes are largely unknown. We therefore assessed patient recovery in a large cohort of dialysis patients 3 months after their COVID-19 diagnosis. Methods. We analyzed data on dialysis patients diagnosed with COVID-19 from 1 February 2020 to 31 March 2021 from the European Renal Association COVID-19 Database (ERACODA). The outcomes studied were patient survival, residence and functional and mental health status (estimated by their treating physician) 3 months after COVID-19 diagnosis. Complete follow-up data were available for 854 surviving patients. Patient characteristics associated with recovery were analyzed using logistic regression. Results. In 2449 hemodialysis patients (mean ± SD age 67.5 ± 14.4 years, 62% male), survival probabilities at 3 months after COVID-19 diagnosis were 90% for nonhospitalized patients (n = 1087), 73% for patients admitted to the hospital but not to an intensive care unit (ICU) (n = 1165) and 40% for those admitted to an ICU (n = 197). Patient survival hardly decreased between 28 days and 3 months after COVID-19 diagnosis. At 3 months, 87% functioned at their pre-existent functional and 94% at their pre-existent mental level. Only few of the surviving patients were still admitted to the hospital (0.8-6.3%) or a nursing home (∼5%). A higher age and frailty score at presentation and ICU admission were associated with worse functional outcome. Conclusions. Mortality between 28 days and 3 months after COVID-19 diagnosis was low and the majority of patients who survived COVID-19 recovered to their pre-existent functional and mental health level at 3 months after diagnosis

ULTRASONIC ATTENUATION AND VELOCITY IN Cd0.55 Mn0.45Te+

We deduce the electromechanical coupling factor, piezoelectric constant (e14), and electrical conductivity of Cd0.55Mn0.45Te from the attenuation maximum and velocity change of piezoelectrically-active [110][001] ultrasonic shear waves which occur as a function of temperature, T. Electromechanical coupling and el4 are much larger in Cd0.55Mn0.45Te than in CdTe due to less bond charge transfer in the former because, we believe, of hybridization of Mn 3d orbitals into the tetrahedral bonds. The dc resistivity was measured and found to be an exponential function of 1/T in accord with the electrical conductivity deduced from our ultrasonic data. The conductivity activation energy we identify with the ionization energy of centers which provide mobile charge carriers (holes)

Spin-flip Raman scattering from donors in diluted magentic semiconductors

This article does not have an abstract

Dependence of energy gap on x and T in Zn1-xMnxSe: The role of exchange interaction

Photoluminescence and reflectivity measurements have been carried out on Zn1-xMnxSe solid solutions in the complete range of crystal compositions, 0x0.55. The features of the photoluminescence and reflectivity data near the band edge enabled us to determine values of the fundamental band gap as a function of Mn molar fraction x and temperature (8 KT 300 K). The energy gap in crystals with compositions in the vicinity of the zinc-blende wurtzite structural transition (0.2x0.3) exhibited a scatter of values, probably associated with the presence of various polytypes (as evidenced by transmission-electron-microscopy measurements). The dependence of Eg on x is anomalous for 0x0.2, showing a minimum in the Eg vs x curve. A simple model (in terms of second-order perturbation theory in s-d and p-d interactions) relates this minimum to a maximum observed in the magnetic susceptibility as a function of x. For samples with x0.35, the Eg dependence on T shows an onset of an additional blue shift as the temperature is lowered below 150 K. This onset, though not reproduced by our simple calculation, appears to be also related to the presence of s-d and p-d interactions. © 1986 The American Physical Society

Psychosocial Conditions of Quality of Life Among Undergraduate Students: A Cross Sectional Survey

Quality of life (QOL) in the context of education is an understudied topic and research related to its’ relation to the sense of coherence (SOC), level of optimism (LOO) and self-efficacy (SE) among students seems to be missing. The rationale for this survey was to fill this gap in knowledge and therefore, the aim of the study is to examine the relationship between students’ QOL and psychological variables such as SOC, LOO and SE, and social ones such as type of faculty, students’ social background and sex. The quantitative cross sectional survey has been conducted at three higher education institutions in Poland in January 2006. The random sample of 396 undergraduate students (average age was 20.5 years) representing 5 different faculties namely physiotherapy, physical education, tourism and recreation, English and Polish philology has been selected and participated in the study. Four reliable and validated research tools have been used to collect the data. These included the SF-36, SOC-29, Seligman’s scale, and GSES. The results have shown to indicate that different variables had a significant effect on particular subscales of the QOL outcomes. For example, among social variables faculty had a significant effect on physical functioning, role limitation due to physical functioning, and changes in health. Sex had a significant effect on role limitation due to emotional problems, social functioning, and energy vitality. Social background had a significant effect on general health. Among psychological variables the sense of coherence was significantly related to all subscales of QOL. A significant effect was noted by self-efficacy on physical and social functioning. Level of optimism had a significant effect on energy-vitality and general health. This research survey has suggested that changes in academic curriculum might be implemented to improve students QOL