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Blockchain, which was originally created to enable peer-to-peer digital payment systems (bitcoin), is considered to have several benefits for different sectors, such as the real estate one. In a standard European-wide real estate transaction, several intermediaries are involved. As a consequence, these agreements are usually time-consuming and involve extra difficulties to cross-border operations. As blockchain, combined with smart contracts, may have an important role in these transactions, this paper aims to explore its prospective challenges, limitations and opportunities in the real estate sector and discover how the traditional intermediaries have to face a possible implementation of this technology.

This paper analyses the current intermediaries in the real estate sector in European Union (EU), their functions and how can blockchain strengthen the security of these transactions while reducing their time. The author uses a legal methodology to approach it.

Blockchain, combined with smart contracts, has both challenges and opportunities for the real estate sector. On the one hand, it may improve procedures, allow EU transactions and the interconnection between public administration. However, to not reduce parties rights, this blockchain should have some special features, such as the possibility of being amended.

This paper provides a valuable overview of all the intermediaries that could be affected by blockchain protocols. It is of interest of blockchain developers, public administrations and researchers who are working on blockchain and property conveyancing.

The article examines Sheikh Ahmad Khatib Al-Minangkabauwi's initial concept of paper money, which in the early 20th century wrote Risala Raf'u Al-Iltibas.

This paper uses a qualitative approach based on the critical extraction analysis that can reveal a set of concepts related to the thoughts of Sheikh Ahmad Khatib Al-Minangkabauwi on paper money.

Through an attentive reading of Sheikh Ahmad Khatib Al-Minangkabawi, the authors can formulate several significant results: First, Ahmad Khatib Al-Minangkabawi applies two methods in studying critically on paper money, namely, the comparative law method and qiyas. Second, Ahmad Khatib believes that paper money has similarities with dinars and dirhams, namely its nominal value function. It is just that the existence of these values is different. Briefly, there are set law consequences for those who used paper money in economic activities, i.e. payment of zakāt on paper money applies when used as business capital.

Sheikh Ahmad Khatib Al-Minangkabawi's work related to paper money is written heavily from the perspective of fiqh. Briefly, it is challenging to describe legal reasoning from work. As a result, articles are also thicker with fiqh analysis.

Sheikh Ahmad Khatib Al-Minangkabawi's view regarding paper money becomes the foundation for the theory of the value of money in Islam. However, it is rarely disclosed. In this regard, this paper can serve as the foundation of the value for money offered by scholars from Indonesia in the early 20th century.

Money is not a commodity. Still, it must be positioned as capital to be productive. It finally becomes why trade is compelling and becomes the most practical reason for paying out zakāt.

It is not easy finding out articles that attempt to reveal the concept of classical ulemas or clerics from Indonesia relating to paper money. This article manages to identify that, and at the same time, becomes a novelty.

Research on cultural entrepreneurship has explored the role of language in making and giving sense to novel ventures and market categories and in legitimating them. We analyze how an emerging de novo market category, quantum computing, is constructed through the use of analogies and metaphors. Through a multimodal analysis of interview and newspaper data, we find that in addition to using analogies and metaphors to highlight familiarity, actors also use such tropes to expound the weirdness of the new category, thus marking it as profoundly different and novel. Such tropes have a dual function; they draw the boundaries between science and laypeople but also arouse awe and curiosity among the audiences. Our study thus casts light on the cultural work during de novo category emergence.

Older people with dementia (OPD) have specific housing and technology-related needs, for which various design principles exist. A model for designing environments and its constituting items for people with dementia that has a firm foundation in neurology may help guide designers in making design choices. The paper aims to discuss these issues.

A general design model is presented consisting of three principles for OPD, namely designing for ageing people; designing for a favourable state and designing for beautiful moments. The neurosciences as a whole give shape to an eminent framework explaining the behaviour of OPD. One of the objectives of this paper is to translate the design principles into design specifications and to show that these specifications can be translated in a design.

Philosophical concepts are introduced which are required to understand design for OPD. Four case studies from Dutch nursing homes are presented that show how the theory of modal aspects of the philosopher Dooyeweerd can be used to map design specifications in a systematic way.

These examples of design solutions illustrate the applicability of the model developed in this article. It emphasises the importance of the environment for supporting the daily life of OPD.

There is a need for a design model for OPD. The environment and technology should initiate positive behaviours and meaningful experiences. In this paper, a general model for the designing of environments for OPD was developed that has a firm foundation in neurology and behavioural sciences. This model consists of six distinct steps and each step can be investigated empirically. In other words, this model may lay the foundation for an evidence-based design.

The purpose of this paper is to enlarge the body of knowledge on research through design (RtD) methods that can be employed by landscape architects and others working on (but not limited to) sustainable energy transition.

A specific approach to RtD – qualitative landscape structure analysis (QLSA) – is introduced and illustrated by means of diagrams and photographs. Two case studies showcase the application of QLSA for research on solar parks in the Netherlands and research on wind turbines in the Alpine foothills in Southern Germany.

The case studies show how RtD can help to define design principles for large solar parks and arrangement of wind turbines in particular landscape types in the Netherlands and Germany, respectively. In doing so, RtD can help to expand the breadth of spatial research beyond well-established methods such as multi-criteria decision analysis and environmental impact assessment.

The paper provides insights into contemporary RtD in two countries and affirms the importance of such research with regard to landscape transformations while starting to define a research niche for landscape architects and other environmental designers working on the topic of sustainable energy transition.