The origin of Uranium in groundwater of the eastern Halkidiki region, northern Greece.

Uranium (U) pollution in groundwater has become a serious problem worldwide. Even in low concentrations, U has both radiological and toxicological impacts on human health. In this study an integrated hydrogeological approach was applied to conceptualize an aquifer system, and determine the origin of U detected in the aquifer of the eastern Halkidiki region in northern Greece.

A qualitative meta-synthesis of patients with heart failure perceived needs.

Supportive care may have significant input into the treatment of patients with heart failure (HF). Support, understanding and being treated as a whole and unique person are vital for patients with HF. In order to develop a person-centred program, it is important to know patients' needs from their perspectives.

Supportive Care Interventions to Promote Health-Related Quality of Life in Patients Living With Heart Failure: A Systematic Review and Meta-Analysis.

Supportive care (physical, psychosocial, and spiritual) may be beneficial as a coping resource in the care of patients with heart failure (HF). Nurses may provide individualised supportive care to offer positive emotional support, enhance the patients' knowledge of self-management, and meet the physical and psychosocial needs of patients with HF. The aim of this study was to examine the potential effectiveness of supportive care interventions in improving the health- related quality of life (HRQoL) of patients with HF.

Synthesis and characterization of a novel FeO-loaded oxidized biochar from pine needles and its application for uranium removal. Kinetic, thermodynamic, and mechanistic analysis.

This work investigates the fabrication of magnetic biochar (pncm) and FeO-loaded oxidized biochar (pncom) obtained from pine needles for uranium removal. Adsorbent properties were characterized by scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR) techniques. Using batch-type experiments the effect of the uranium concentration, solution pH, contact time, temperature and ionic strength on the uranium adsorption was investigated.

Uranium adsorption by polyvinylpyrrolidone/chitosan blended nanofibers.

PVP/chitosan blended nanofibers have been prepared and investigated as adsorbent material for the removal of hexavalent uranium (U(VI)) from aqueous solutions. The nanofibers have been characterized prior and after U(VI) adsorption by SEM and FTIR measurements, and the effect of various parameters such as metal-ion concentration temperature and contact time on the adsorption efficiency has been investigated by batch-type experiments. The material presents increased sorption capacity (q= (167 ± 25) g kg at pH 6.