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In recent years, the retail virtual store has become the main trend in social services. More and more people tend to shop in retail virtual stores. With the development of 3D virtual reality, this trend is getting stronger and stronger. Therefore, the development prospect of virtual retail stores has attracted much attention. This paper examines the impact of companies' and users' popularization of helmet gadgets on in-store traffic and analyzes how virtual reality (VR) could enhance the customer experience throughout the shopping trip. A qualitative research design has been used, which also included conversations with both professionals and consumers. Moreover, this paper seeks to break new ground by attempting to use the current literature to help predict future directions and trends for online shopping.
This paper is structured into two parts, which are closely related: first, the analysis of the parlamentary and governmental measures against the covid-19 pandemic; and second, the future regulatory framework about freedom of movement and other rights in the European area, according to the new European pact on migration and asylum.
Freedom of trade, occupation and profession in times of the Covid-19 pandemic in South Africa
(2022)
This paper evaluates the freedom of trade, occupation, and profession in South Africa from a Covid-19 pandemic context. It does that by focusing on the pertinent provisions and rights contained in the Constitution of the Republic of South Africa, 1996 (the Constitution) and relevant international and regional human rights instruments. It proceeds by discussing the interlinkage between (the freedom of trade, occupation, and profession and other pertinent fundamental) rights, limitation, enforcement, and interpretation of rights. This is followed by some final observations.
This paper analyzes some of the assumptions in which the varied use of technologies to confront the spread of the COVID-19 pandemic and protect people's health has impacted on the fundamental right to the protection of personal data; to do so, it starts from the premise that the use of these technologies cannot mean an affectation to the referred fundamental right, much less an indiscriminate treatment of such data without any minimum control whatsoever.
Covid-19 outbreak had a huge impact on the economy worldwide as businesses had to close or cease their activities due to the lockdown regulations. The “luckiest” firms were able to operate but under restricted conditions. In order to avoid what certain authors called “bankruptcy epidemic” European countries took economic and fiscal measures to help companies compensate their financial losses. In addition to Government Grants, emergency legislations have been adopted with the aim to adapt insolvency and restructuring procedures to the sanitary situation and specific rules relating to company Law have also been implemented. This paper deals with the measures taken by the state of Luxembourg and gives a brief overview of the legal amendments.
The study traces the development of compulsory vaccination in Germany against the background of political discussion and legislative activities, focusing on the area of tension between state health protection and the right to medical self-determination in the context of constitutional balancing. It is based on the assumption that the right to medical self-determination traditionally dominates state decisions in a democratic constitutional state and that the scope for decision-making is constantly being further contoured in the face of current challenges.
Numerous research methods have been developed to detect anomalies in the areas of security and risk analysis. In healthcare, there are numerous use cases where anomaly detection is relevant. For example, early detection of sepsis is one such use case. Early treatment of sepsis is cost effective and reduces the number of hospital days of patients in the ICU. There is no single procedure that is sufficient for sepsis diagnosis, and combinations of approaches are needed. Detecting anomalies in patient time series data could help speed the development of some decisions. However, our algorithm must be viewed as complementary to other approaches based on laboratory values and physician judgments. The focus of this work is to develop a hybrid method for detecting anomalies that occur, for example, in multidimensional medical signals, sensor signals, or other time series in business and nature. The novelty of our approach lies in the extension and combination of existing approaches: Statistics, Self Organizing Maps and Linear Discriminant Analysis in a unique and unprecedented way with the goal of identifying different types of anomalies in real-time measurement data and defining the point where the anomaly occurs. The proposed algorithm not only has the full potential to detect anomalies, but also to find real points where an anomaly starts.
1. Among the many concerns for biodiversity in the Anthropocene, recent reports of flying insect loss are particularly alarming, given their importance as pollinators, pest control agents, and as a food source. Few insect monitoring programmes cover the large spatial scales required to provide more generalizable estimates of insect responses to global change drivers.
2. We ask how climate and surrounding habitat affect flying insect biomass using data from the first year of a new monitoring network at 84 locations across Germany comprising a spatial gradient of land cover types from protected to urban and crop areas.
3. Flying insect biomass increased linearly with temperature across Germany. However, the effect of temperature on flying insect biomass flipped to negative in the hot months of June and July when local temperatures most exceeded long-term averages.
4. Land cover explained little variation in insect biomass, but biomass was lowest in forests. Grasslands, pastures, and orchards harboured the highest insect biomass. The date of peak biomass was primarily driven by surrounding land cover, with grasslands especially having earlier insect biomass phenologies.
5. Standardised, large-scale monitoring provides key insights into the underlying processes of insect decline and is pivotal for the development of climate-adapted strategies to promote insect diversity. In a temperate climate region, we find that the positive effects of temperature on flying insect biomass diminish in a German summer at locations where temperatures most exceeded long-term averages. Our results highlight the importance of local adaptation in climate change-driven impacts on insect communities.
Das Ziel der Bundesregierung von jährlich 400.000 neuen Wohnungen (davon 100.000 mit Sozialbindung) ist gefährdet. Deutschland steht nämlich möglicherweise eine längere Stagflationsphase bevor, die nicht zuletzt durch den Abriss von Lieferketten und den Anstieg der Energiepreise bedingt ist. Investoren von Wohnungen geraten dabei wirtschaftlich in die Zange: Einerseits sind die Möglichkeiten, weitere Mieterhöhungen durchzusetzen, aufgrund sinkender Realeinkommen beschränkt. Auf der anderen Seite explodiert aufgrund steigender Baukosten und Zinsen die Kostenseite. Dies alles dürfte sich auf die Investitionsbereitschaft sehr negativ auswirken, zumal derzeit noch keine Erleichterung in Gestalt eines deutlichen Absinkens der Bodenpreise zu erkennen ist. Letzteres ist allerdings ein Argument für den verstärkten Einsatz von öffentlich ausgegebenen Erbbaurechten, über die auch Sozialbindungen für die gesamte Vertragslaufzeit auferlegt werden können.
Allerdings können u. U. in der sich abzeichnenden wirtschaftlichen Situation durchaus auch Erbbaurechtnehmer mit Bestandsverträgen in Probleme geraten. Die Ursache hierfür sind Anpassungen der Erbbauzinsen, deren Entwicklung an die Inflationsrate gekoppelt ist. Zwar existiert eine gesetzliche Billigkeitsprüfung. Diese setzt in ihrer gegenwärtigen Ausgestaltung aber möglicherweise zu geringe Hürden bei inflationsbedingt starken Erhöhungen der Erbbauzinsen. Diese Hürden könnte einerseits aber erhöht werden, indem neben den Bruttoverdiensten der Arbeitnehmer auf die Kerninflationsrate anstatt der Verbraucherpreissteigerungen Bezug genommen wird. Eine Alternative besteht in der Bezugnahme der Kappungsgrenze auf den Wohnungsmietindex, was allerdings einen Bruch mit der bisherigen wirtschaftlichen Logik der Kappungsgrenze bedeutet.
Bei von der öffentlichen Hand ausgegebenen Erbbaurechten würde sich ebenfalls eine freiwillige Bezugnahme der Anpassung der Erbbauzinsen im Rahmen von Gleitklauseln an der Kerninflationsrate empfehlen.
Die erstmalige Ausgabe von Erbbaurechten durch die öffentliche Hand sollte orientiert an langfristigen Baufinanzierungszinsen erfolgen. Dabei wäre jedoch ein Abschlag mit Blick auf die erwartete (Kern-) Inflation vorzunehmen, die bei Erbbaurechtsverträgen wegen der hier möglichen Wertsicherungsklauseln deutlich weniger auf die Rendite als bei Baufinanzierungen durchschlägt. Die Länder sind hier v. a. dahingehend gefordert, in den Gemeindeordnungen klarzustellen, dass ein derartiges Vorgehen nicht gegen das Gebot der Abgabe von Vermögenswerten zum „vollen Wert“ verstößt.
Ebenfalls vornehmlich den Aufgabenbereich der Länder (aber auch der Gemeinden) betrifft die Notwendigkeit, eine eigenständige Förderkulisse für bezahlbaren Wohnraum über Erbbaurechte aufzustellen, die perspektivisch die gesamte Vertragslaufzeit umfasst. Eine weitere Absenkung der Erbbauzinsen über das oben diskutierte Niveau (Orientierung an inflationsadjustierten langfristigen Baufinanzierungszinsen) stellt i.d.R. nur eine zweitbeste Lösung dar.
This paper presents a feasibility study for the production of recycled glycol modified polyethylene terephthalate (PETG) material for additive manufacturing. Past studies showed a variety of results for the recycling of 3D-printing material, therefore the precise effect on the material properties is not completely clear. For this work, PETG waste of the same grade was recycled once and further processed into 3D printing filament. The study compares three blend ratios between purchased plastic pellets and recycled pellets to determine the degradation effect of one recycling cycle and possible blend ratios to counter these effects. Furthermore, the results include a commercially available filament. The comparison uses the filament diameter, the dimensional accuracy of the printed test specimen and mechanical properties as quality criteria. The study shows that the recycled material has a minor decrease concerning the tensile strength and Young’s modulus.