We discuss a method of approximate model reduction for networks of biochemical reactions. This method can be applied to networks with polynomial or rational reaction rates and whose parameters are given by their orders of magnitude. In order to obtain reduced models we solve the problem of tropical equilibration that is a system of equations in max-plus algebra. In the case of networks with non...

The Biochemical Oxygen Demand (BOD) is one of the most widely used criteria for water quality assessment. It provides information about the ready biodegradable fraction of the organic load in water. However, this analytical method is time-consuming (generally 5 days, BOD5), and the results may vary according to the laboratory (20%), primarily due to fluctuations in the microbial diversity of th...

Mitochondrial disorders are a group of genetically heterogeneous complex diseases [1–6]. Although mitochondrial structure and function involve two genomes, the biogenesis of mitochondrion and more than 99 % of its protein contents are encoded by the nuclear genome [7]. As a result, the majority of the mitochondrial disorders are caused by molecular defects in the nuclear genome [5, 6, 8–10]. Ea...

The biochemical validity of published labelled-ligand and ligand-antibody methods for the histological localisation of oestrogen receptors (ER) in breast carcinomas was assessed by measuring specific and non-specific binding of 3H-oestradiol to pretreated MCF-7 monolayers; the monolayers had been either frozen and thawed, then air-dried or acetone-fixed, or fixed in formaldehyde to reproduce th...

We present a novel method for identifying a biochemical reaction network based on multiple sets of estimated reaction rates in the corresponding reaction rate equations arriving from various (possibly different) experiments. The current method, unlike some of the graphical approaches proposed in the literature, uses the values of the experimental measurements only relative to the geometry of th...

Çalışma, ‘Eşme’ ayva çeşidinin L*, a*, b*, pH, suda çözünebilir kuru madde, titre edilebilir asitlik, C vitamini, toplam fenolik, flavonoid ve antioksidan aktivitesi üzerine farklı kurutma yöntemlerinin etkisini belirlemek amacıyla yapılmıştır. Ayva dilimlerinde işlemi doğal, etüv mikrodalga fırında olmak üzere 3 yönteme göre gerçekleştirilmiştir. Kurutma yöntemlerine göre, madde içeriği %43.47...