In today's economic system, the state has to make some purchases of goods and services to produce and offer the services of the public system formed by local administrations and other administrations. These purchases are the purchases that the public deems necessary through the private sector within the framework of investment programs and budget. Although annual growth and the tranches of spending items in investment programs change every year within the framework of the country's growth, purchases in the public system necessarily occur depending on these rates. Regulations and improvements on this subject; will not only affect the current levels of economic and social welfare, but will also increase the welfare levels of future generations and will support economic sustainability. The issue of public purchases regulated by law, which has become more important especially with its wide coverage in the Eleventh Development Plan, continues to contribute to economic sustainability with its value that directs the country's economy. In the study, literature reviews of public procurements, tender laws and related regulations which have a direct effect on the country's economy were conducted as method; and changes in the public procurements, tender laws and relevant legislation have been aimed to be revealed. Since the first law of 1925, in the four law amendments, some regulations have been made abiding by the main principles and the arrangements required by the country have been made. While the names of the procurement procedures change in the laws are partial, the main contents are preserved. The study examines the four procurement laws that have changed in this way; aiming to provide information on the subject and to address the forecasts that are realized with the support of the country's economy and sustainable development.   Keywords: Tender law, public procurement legislation, economic sustainability, sustainable development, procurement procedures and implementing regulations

In the last century, the economic and social developments and their changes in health sector ended in increase of life expectancy at birth. Both the rise of the life expectancy at birth and decrease in fertility rate due to the changes in socioeconomic life has been resulted in increase of percentage of elderly population in the world. Demographic change and its effect has been seen much earlier in european countries which located in developed world. This demographic transformation that results in ageing is forcing countries to face new challenges. Because of the increase in average life span and total dependency rate, ageing exert pressure on public expenditure, budgetary disciplines and labour supply. For sustainability of health care, long-term care and other social security instruments, countries facing ageing problem needs to adapt their infrastructures and social policies to new demographic situations.

Cities, like a living organism, form their own memory and identity with their social codes and cultural values that have preserved the past and present. The city builds its urban identity while creating its memory with spatial and structural memory. To move the historical and cultural characteristics of the residential areas to future generations in a sustainable way; originality, continuity of use, construction technique and aesthetic values are possible with the identity values in the urban memory. The residential areas that can protect their past and identity socially, culturally and spatially have been the subject of many studies with their originality and sustainable design understanding. Anatolian traditional settlement areas have carried the spatial identity value they have demonstrated with their historical and cultural accumulation from past to present. These settlements, which sometimes cannot be fully integrated into the city, have become tourists that attract tourists with their spatial identity value for some cities. Traditional residential areas that appeal to people's past feelings of knowledge and belonging continue to create both identity and brand values of cities. Along with the sustainable design approach and unique identity value, traditional residential areas and design understanding still need to be examined. Thus, the study aims to analyze the unique aspects of traditional residential areas that support sustainability and create urban identity. In the context of the study, the literature on sustainable traditional residential areas in the context of urban identity has been examined. In the light of the data obtained, different traditional residential areas of Anatolia were examined. As a result of the study, it is aimed that the design understanding of traditional residential areas that contribute to the city's identity value will be a reference to modern architecture.

:Design studios, one of the most important components of architectural education had to move to digital environments urgently and independent of space with the Covid-19 pandemic. This study aims to evaluate whether design studios can be digitized according to the views of students and instructors in two different architecture schools (Firat and Balikesir University) by taking this compulsory experience into account. The views of 71 students and 5 academicians were taken with a purposeful sampling method. Content and descriptive analyses were performed on the views collected from the participants. As a result, the biggest problem in moving design studios to a digital environment is the disappearance of physical environments in which collaboration, idea sharing, and discussions will occur. In addition to this, the advantages brought by online education continued their attraction for some students in the digitization of design studios. In terms of instructors, games, simulations, modelling, and virtual reality can be used for successful digital studio applications and the infrastructures of these applications can be improved with support from mobile devices.

Biophilic design is a new, versatile and rich approach that has been taken up by many disciplines. One of these disciplines is architecture and it deals with the shaping of spatial demands of the closeness created by the innate instinctive/emotional bond that people feel towards nature and the living things in nature. Biophilic design, which is also a reference to studies on ecology and sustainability, has a design approach that allows the continuation of the beneficial effects of nature in the field of architecture by making use of the human-nature interaction in the built environments. The concept of biophilic design, which has become more important in the process of building design and implementation, not only covers modern architectural structures of cities; it also has the capacity to shape traditional structures and the settlement patterns they create. The creation of traditional textures with reference to climate, topography and environmental values actually provides some advantages in creating and maintaining a biophilic design approach in these regions. However, it is observed that in some traditional settlements, the traces of this approach can be conserved, while in others it is largely ignored and disappeared. In this context, the aim of the study is to emphasize the value and importance of detecting, examining and conserving the traces of biophilic design in traditional settlements in order to draw attention to the problems experienced in maintaining the nature-human interaction and protecting the natural elements for human health and well-being. Within the scope of the study, the traditional settlement of Balaban, which is connected to the Darende district of Malatya province, which has survived to the present day with its many architectural qualities and where the use of mudbrick materials stands out, has been examined. In this sense, the literature on biophilic design and Balaban was examined as a method. Then, in the light