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Addressing the pollution problems caused by improper disposal of effluents and wastes from pharmaceutical companies and medical facilities are important for the safety of humans and animals. This work highlights the challenges and developments in medical and pharmaceutical waste management practices across the world as well as their potential for bio-energy production. It involves the study of these waste properties, their impacts on the ecosystem and treatment or recycling methods. Various studies have shown that successes have been recorded in converting some antibiotic contaminated wastewater to biogas in advance anaerobic digesters. Moreover, not all medical wastes are degradable, the use of placentas, hospital cotton waste, human urine, waste blood and surgery waste has been used in biogas plants built at close proximity to hospitals, in some cases. However, such plants are few and are only located in Tanzania, India and Philippines, among others to generate biogas to power hospitals, boil hot water needed by patients and for cooking. This is because the level of awareness as regards the dangers associated with indiscriminate disposal of medical and pharmaceutical waste is low and hence the development of waste disposal policy by countries is often overlooked. The implication of this is the spread of diseases in affected areas which can results in epidemics. It is therefore necessary to formulate policies that allow the harnessing of these wastes to biogas/ bioenergy or the creation of better waste management practices that is environmentally safe. [ABSTRACT FROM AUTHOR]

With the introduction of the multi‐bend achromats in the new fourth‐generation storage rings the emittance has decreased by an order of magnitude resulting in increased brightness. However, the higher brightness comes with smaller beam sizes and narrower radiation cones. As a consequence, the requirements on mechanical stability regarding the beamline components increases. Here an innovative five‐axis parallel kinematic mirror unit for use with soft X‐ray beamlines using off‐axis grazing‐incidence optics is presented. Using simulations and measurements from the HIPPIE beamline at the MAX IV Laboratory it is shown that it has no Eigen frequencies below 90 Hz. Its positioning accuracy is better than 25 nm linearly and 17–35 µrad angularly depending on the mirror chamber dimensions. [ABSTRACT FROM AUTHOR]

The article cites a research study that determines the atomic and electronic structures for several surface reconstructions of the half-Heusler CoTiSb surface, a building block for all-Heusler-based spintronic and topological heterostructures. The researchers aimed to predict the surface structure and properties of these novel quantum materials.

The superconducting order parameter of the first heavy-fermion superconductor CeCu2Si2 is currently under debate. A key ingredient to understand its superconductivity and physical properties is the quasiparticle dispersion and Fermi surface, which remains elusive experimentally. Here, we present measurements from angle-resolved photoemission spectroscopy. Our results emphasize the key role played by the Ce 4f electrons for the low-temperature Fermi surface, highlighting a band-dependent conduction-f electron hybridization. In particular, we find a very heavy quasi-two-dimensional electron band near the bulk X point and moderately heavy three-dimensional hole pockets near the Z point. Comparison with theoretical calculations reveals the strong local correlation in this compound, calling for further theoretical studies. Our results provide the electronic basis to understand the heavy-fermion behavior and superconductivity; implications for the enigmatic superconductivity of this compound are also discussed. [ABSTRACT FROM AUTHOR]