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Engineering Bifidobacterium longum Endo-α-N-acetylgalactosaminidase for Neu5Acα2-3Galβ1-3GalNAc reactivity on Fetuin

Endo-α-N-acetylgalactosaminidase from Bifidobacterium longum (EngBF) belongs to the glycoside hydrolase family GH101 and has a strict preference towards the mucin type glycan, Galβ1-3GalNAc, which is O-linked to serine or threonine residues on glycopeptides and -proteins. While other enzymes of the GH101 family exhibit a wider substrate spectrum, no GH101 member has until recently been reported to

Zein-polycaprolactone core–shell nanofibers for wound healing

In a previous study, we developed electrospun antimicrobial microfiber scaffolds for wound healing composed of a core of zein protein and a shell containing polyethylene oxide. While providing a promising platform for composite nanofiber design, the scaffolds showed low tensile strengths, insufficient water stability, as well as burst release of the antimicrobial drug tetracycline hydrochloride, p

Application of kinetic models in dark fermentative hydrogen production–A critical review

Kinetic modeling could be viewed as an important step in developing a bioprocess, since models can be used in process control, reducing costs and optimizing processes. In the present study, the application of kinetic models in dark fermentative hydrogen production has been investigated. A wide variety of kinetic models are addressed and compared regarding their accuracy to fit the data. This liter

Magnetomotive Ultrasound Imaging Systems : Basic Principles and First Applications

This review discusses magnetomotive ultrasound, which is an emerging technique that uses superparamagnetic iron oxide nanoparticles as a contrast agent. The key advantage of using nanoparticle-based contrast agents is their ability to reach extravascular targets, whereas commercial contrast agents for ultrasound comprise microbubbles confined to the blood stream. This also extends possibilities fo

Prevalence of Charles Bonnet syndrome in patients with glaucoma : a systematic review with meta-analyses

Glaucoma is a widespread sight-threatening condition often only recognized when very pronounced. It is initially characterized by peripheral visual field losses, while advanced stages also affect the central vision. Some of these patients may experience visual hallucinations, the Charles Bonnet syndrome (CBS). In this systematic review and meta-analysis, we provide an overview of the literature de

6G Wireless Systems: Vision, Requirements, Challenges, Insights, and Opportunities

Mobile communications have been undergoing a generational change every ten years or so. However, the time difference between the so-called "G's" is also decreasing. While fifth-generation (5G) systems are becoming a commercial reality, there is already significant interest in systems beyond 5G, which we refer to as the sixth-generation (6G) of wireless systems. In contrast to the already published

Experiments on Belief Formation in Networks

We study belief formation in social networks using a laboratory experiment. Participants in our experiment observe an imperfect private signal on the state of the world and then simultaneously and repeatedly guess the state, observing the guesses of their network neighbors in each period. Across treatments we vary the network structure and the amount of information participants have about the netw

The Importance of the Physical Environment to Support Person-Centered Rehabilitation in the Home

This chapter aims to contribute to an understanding of the physical environment as an important part of the rehabilitation process for patients recovering from a stroke who rehabilitate at home. To further develop evidence-based care models for rehabilitation at home and incorporate person-environment dynamics, an understanding of how environmental factors relate to everyday life and recovering at

Crystal-to-Crystal Transitions in Binary Mixtures of Soft Colloids

In this article, we demonstrate a method for inducing reversible crystal-to-crystal transitions in binary mixtures of soft colloidal particles. Through a controlled decrease of salinity and increasingly dominating electrostatic interactions, a single sample is shown to reversibly organize into entropic crystals, electrostatic attraction-dominated crystals, or aggregated gels, which we quantify usi

An energy-relaxation-based framework for the modeling of magnetic shape memory alloys—Simulation of three-dimensional effects under homogeneous loading conditions

It is known from experimental findings that three-dimensional effects can have a strong influence on magnetic shape memory behavior. Such phenomena are, however, often neglected in MSMA constitutive models, as they only become meaningful under complex loading conditions. The extensions of our original modeling framework, cf. Bartel et al. (2020), to include 3D-effects is threefold: (i) vector-valu

Knowledge management of sustainable construction processes

As the building construction industry accounts for a large part of the ecological burden, sustainable construction processes are very important for achieving sustainable communities. Construction is often a linear process, where different actors act at different stages of the process. In this process there are critical borderlines where the information is to be transferred from one actor to anothe

An investigation on the potential of bio-based polymers for use in polymer gear transmissions

The potential for replacing the fossil-based Polyoxymethylene (POM) and Polyamide 66 (PA 66) in polymer gear applications with a bio-based Polyamide 6.10 (PA 6.10) was studied and is presented in the article. The use of bio-based plastics is increasing but mostly in undemanding applications like packaging. High-performance plastics are needed in polymer gear transmissions since their operational c

At the Epicentre of COVID-19 - the Tragic Failure of the Global Supply Chain for Medical Supplies

The tragic failure of the global supply chain in the face of the current coronavirus outbreak has caused acute shortages of essential frontline medical devices and personal protective equipment, crushing fear among frontline health workers and causing fundamental concerns about the sustainability of the health system. Much more coordination, integration, and management of global supply chains will

When does stand-alone software qualify as a medical device in the European Union?: The CJEU decision in SNITEM and what it implies for the next generation of medical devices

This contribution analyses the first decision by the Court of Justice of the European Union (CJEU) on the qualification and regulation of stand-alone software as medical devices. Referring to the facts of the case and the applicable EU regulatory framework, the Court specifically found that prescription support software may constitute a medical device. This would even be the case where the softwar

Regulatory responses to medical machine learning

Companies and healthcare providers are developing and implementing new applications of medical artificial intelligence (MAI), including the AI sub-type of medical machine learning (MML). MML is based on the application of machine learning (ML) algorithms to automatically identify patterns and act on medical data to guide clinical decisions. MML poses challenges and raises important questions, incl

Two new Eulophinae genera (Chalcidoidea : Eulophidae) from the Neotropical region

Two new Eulophinae genera, Elasmarion and Celesterion, are described based on material from sweep-net and malaise trap samples mainly from Costa Rica. The new genera are each represented by a single species, both described here, E. longipes and C. reticulatum spp. nov. The material for both groups is abundant and strongly female biased, 119 females and two males in Elasmarion, and 63 females and t

Polarization and cross section of midrapidity J /ψ production in p+p collisions at s =510 GeV

The PHENIX experiment has measured the spin alignment for inclusive J/ψ→e+e- decays in proton-proton collisions at s=510 GeV at midrapidity. The angular distributions have been measured in three different polarization frames, and the three decay angular coefficients have been extracted in a full two-dimensional analysis. Previously, PHENIX saw large longitudinal net polarization at forward rapidit

Spherical Micelles with Nonspherical Cores : Effect of Chain Packing on the Micellar Shape

Self-assembly of amphiphilic polymers into micelles is an archetypical example of a "self-confined"system due to the formation of micellar cores with dimensions of a few nanometers. In this work, we investigate the chain packing and resulting shape of Cn-PEOx micelles with semicrystalline cores using small/wide-angle X-ray scattering (SAXS/WAXS), contrast-variation small-angle neutron scattering (

Endocrinology of thermoregulation in birds in a changing climate

The ability to maintain a (relatively) stable body temperature in a wide range of thermal environments by use of endogenous heat production is a unique feature of endotherms such as birds. Endothermy is acquired and regulated via various endocrine and molecular pathways, and ultimately allows wide aerial, aquatic, and terrestrial distribution in variable environments. However, due to our changing

Share, preserve, adapt, rethink - A focused framework for circular economy

The concept of circular economy has peaked in both popular and scientific discussion in the past few years. Notwithstanding, no specific definition for circularity in the context of existing buildings is available. This research details a framework of circular economy in the built environment, focusing on existing buildings. The paper employs a systematic literature review on circular economy with