PAVEMENTS COVERED FOR HEAT ISOLATION TO GET PEDESTRIAN THERMAL COMFORT

Civilization has been analyzed mostly with urbanization which coincides with the usage of stone and later concrete and steel in constructions. Nowadays we have been realized that construction materials used for houses, apartments, roads and pavements surrounding us create local microclimate which influences our living comfort. Local temperature increases due to asphalt roads and concrete pavements have recently been determined and they are remarkably effective in our everyday life. Usage of different types of aggregates in concrete mixtures to cast concrete pavement blocks might effective to decrease air temperature on the pavements. Therefore heat-resistant rocks were used to produce different sized aggregates where different plasters were produced from them to coat standard concrete pavement blocks. Pavement blocks plastered were then put under sun to test their surface temperatures. It was observed that heat-resistive materials used in plaster concretes influence heat distribution in the blocks and surface temperature of the concrete pavement blocks.

KAIME : Central Bank Digital Currency with Realistic and Modular Privacy

Recently, with the increasing interest in Central Bank Digital Currency (CBDC), many countries have been working on researching and developing digital currency. The most important reasons for this interest are that CBDC eliminates the disadvantages of traditional currencies and provides a safer, faster, and more efficient payment system. These benefits also come with challenges, such as safeguarding individuals’ privacy and ensuring regulatory mechanisms. While most researches address the privacy conflict between users and regulatory agencies, they miss an important detail. Important parts of a financial system are banks and financial institutions. Some studies ignore the need for privacy and include these institutions in the CBDC system, no system currently offers a solution to the privacy conflict between banks, financial institutions, and users. In this study, while we offer a solution to the privacy conflict between the user and the regulatory agencies, we also provide a solution to the privacy conflict between the user and the banks. Our solution, KAIME has also a modular structure. The privacy of the sender and receiver can be hidden if desired. Compared to previous related research, security analysis and implementation of KAIME is substantially simpler because simple and well-known cryptographic methods are used

Chemical and biological profiles of essential oil from different parts of Myrtus communis L. subsp. communis from Turkey

The present study reports chemical composition, antidiabetic, anti-inflammatory and antioxidant potential of essential oils from leaves and twigs of Myrtus communis L. subsp. communis from Turkey. Essential oils were obtained separately from leaves and twigs of Myrtus communis subsp. communis (MC) by hydrodistillation using a Clevenger-type apparatus. Chemical compositions were determined using GC/MS. Antidiabetic, anti-inflammatory and antioxidant activities of essential oils were tested by α-amylase inhibitory, 5-lipoxygenase inhibitory and DPPH/ABTS radical scavenging methods, respectively. The major compounds of essential oil of Myrtus communis subsp. communis leaves (MCLEO) were α-pinene (35.6%), 1,8-cineole (28.3%), linalool (10.5%), and limonene (8.2%), while the major constituents of essential oil of Myrtus communis subsp. communis twigs (MCTEO) were α-pinene (30.7%), 1,8-cineole (23.5%), p-cymene (13.3%) and limonene (11.9%). MCLEO and MCTEO showed good and moderate radical scavenging activity with IC50  values of 124.40 µg/mL and 390.10 µg/mL for ABTS radical, respectively. MCLEO and MCTEO exhibited significant radical scavenging activity with IC50 values of 34.13 µg/mL and 28.15 µg/mL for DPPH radical, respectively. Also, MCLEO and MCTEO displayed strong and good antidiabetic activity with IC50 values of 29.94 µg/mL and 159.80 µg/mL against α-amylase enzyme, respectively. Finally, MCLEO and MCTEO showed good anti-inflammatory activity with IC50 values 86.10 µg/ mL and 96.55 µg/mL against 5-lipoxygenase enzyme, respectively. From the present study it can be concluded that essential oils, especially MCLEO, possess good antidiabetic, anti- inflammatory and antioxidant activities. Also, this is the first study on chemical composition of MCTEO from Turkey, as well as on α-amylase inhibitory and 5-lipoxygenase inhibitory activities of MCLEO and MCTEO

Birinci Trimester MPV/Trombosit ve PDW/Trombosit Oranlarının Abortus İmminens ve Abortusu Öngörmede Etkinliği

Amaç: Bu çalışmanın amacı, gebelerde birinci trimester döneminde yapılan rutin tam kan sayımı ile elde edilen trombosit değeri, ortalama trombosit hacmi (MPV) değeri, platelet dağılım genişliği (PDW) değeri, MPV/trombosit oranı ve PDW/trombosit oranının gebelik süresince oluşabilecek abortus imminens ve abortus durumlarını öngörmedeki rolünü incelemektir. Gereç ve Yöntem: Çalışmaya gebe polikliniklerinde 2018-2020 yılları arasında gebeliğin 6.-12. haftaları arasında tam kan sayımı örneği veren 300 hasta alındı. Hasta dosyalarından hastaların yaşları, abortus sayıları, gebelik haftaları, trombosit değerleri, MPV değerleri, PDW değerleri, MPV/trombosit oranları ve PDW/trombosit oranları kaydedildi. Hastalar düşük, düşük tehdidi ve kontrol olmak üzere 3 gruba ayrıldı. Tüm veriler karşılaştırmalı olarak analiz edildi. Bulgular: Abortus grubu, abortus imminens grubu ve kontrol grubu arasında trombosit değerleri, PDW değerleri, MPV değerleri, PDW/trombosit oranları ve MPV/trombosit oranları açısından anlamlı (p>0,05) bir farklılık gösterilmemiştir. Laboratuvar parametreleri açısından değerlendirildiğinde ise ortalama trombosit değeri 256,7±65,6, PDW değeri 12,2±1,8, MPV değeri 10,2±0,8, MPV/trombosit oranı 0,042±0,011 ve PDW/trombosit oranı 0,051±0,016 olarak saptanmıştır. Sonuç: Birinci trimesterde sağlıklı gebelerin tam kan sayımı testinden elde edilen MPV, PDW ile MPV/trombosit ve PDW/trombosit oranları ileri dönem abortus ve abortus imminens riskini öngörmede etkin değildir

Evaluation of Choroidal Thickness in Patients with Pseudoexfoliation Syndrome and Pseudoexfoliation Glaucoma

Purpose. To compare the macular and peripapillary choroidal thickness in eyes with pseudoexfoliation (PEX) syndrome and PEX glaucoma with the normal eyes of healthy controls. Materials and Methods. In this prospective study, 30 eyes of 30 patients with PEX syndrome, 28 eyes of 28 patients with PEX glaucoma, and 30 eyes of 30 age-matched healthy subjects were enrolled. Choroidal thicknesses in the macular and peripapillary areas were measured by using spectral domain optical coherence tomography. Results. Gender, age, and axial length did not significantly differ between the groups (all, p>0.05). The mean values of choroidal thickness in the macular and peripapillary areas (except the superior quadrant) in the patients with PEX syndrome and PEX glaucoma were lower compared with controls (all p<0.05). The mean values of the macular and peripapillary choroidal thickness in the PEX glaucoma group were lower compared with PEX syndrome group; however this difference was not significant. Conclusions. The findings of this study revealed that macular and peripapillary choroidal thicknesses were decreased in PEX syndrome and PEX glaucoma cases. The role of choroid in the development of glaucomatous damage in patients with PEX syndrome remains unclear