m. jafarpour

Gestational diabetes mellitus (GDM) is defined as a glucose intolerance that is diagnosed first during pregnancy. GDM is associated with an increased risk of short-term and long-term disorders for both mothers and their offspring. Therefore, early prediction and diagnosis of GDM are very crucial. The oral glucose tolerance test (OGGT) at 24–28 weeks of gestation is the gold standard method for diagnosing GDM. Because pathological changes that trigger GDM development occur before GDM, identifying biomarkers with the ability to predict GDM is pivotal. In this review article, we reviewed current literature regarding methods that are routinely used for diagnosis of GDM. Furthermore, we discussed about the possible benefits and challenges of using adipokines, inflammatory biomarkers, metabolomic findings, and molecular biomarkers for the early prediction of GDM.

We introduce a new invariant vulnerability parameter named J-Tightness or J(G) for graphs. As a stability measure, its properties along with comparisons to other parameters of a graph are proposed. We show how it is calculated for complete graphs and cycles. We show that J-Tightness better fits the properties of vulnerability measures and can be used with more confidence to assess the vulnerability of any classes of graphs.

The purpose of this study was to evaluate the The effectiveness of time perspective treatment in sense of coherence and perceived stress of mothers of Children with learning disorders in Zahedan. The study was a experimental one with a pretest-posttest design including a control group. Using a suitable sampling method, a sample of 30 mothers with children with special learning disorder in the academic year 2017-2018 in Zahedan was selected and were assigned into an experimental and a control groups. Antonovsky (1993) and perceived stress questionnaire (1983) were used in pre-test, post-test and follow-up tests. For therapeutic intervention, the Learning Time Protocol and for analyzing the data, multivariate analysis of covariance analysis were used. The results showed that there was a significant difference between the mean scores of psychological coherence and perceived stress in the experimental group before and after the intervention (p <0.05), but these changes were not significant in the control group. Therefore, the results showed that time perspective treatment had a significant effect on increasing the mental integrity and reducing the perceived stress of mothers of children with the learning disorder; Therefore, the use of time perspective treatment, as an effective educational intervention, to increase psychological coherence and reduce perceived stress in mothers of children with learning disorder is recommended.

In this paper, optimization of a linear objective function with fuzzy relational inequality constraints is investigated where the feasible region is formed as the intersection of two inequality fuzzy systems and Dombi family of t-norms is considered as fuzzy composition. Dombi family of t-norms includes a parametric family of continuous strict t-norms, whose members are increasing functions of the parameter. This family of t-norms covers the whole spectrum of t-norms when the parameter is changed from zero to infinity. The resolution of the feasible region of the problem is firstly investigated when it is defined with max-Dombi composition. Based on some theoretical results, a necessary and sufficient condition and three other necessary conditions are derived for determining the feasibility. Moreover, in order to simplify the problem, some procedures are presented. It is shown that a lower bound is always attainable for the optimal objective value. Also, it is proved that the optimal solution of the problem is always resulted from the unique maximum solution and a minimal solution of the feasible region. A method is proposed to generate random feasible max-Dombi fuzzy relational inequalities and an algorithm is presented to solve the problem. Finally, an example is described to illustrate these algorithms.

In this paper, we introduce the novel parameters indicating Normalized Tenacity ($T_N$) and Normalized Toughness ($t_N$) by a modification on existing Tenacity and Toughness parameters.  Using these new parameters enables the graphs with different orders be comparable with each other regarding their vulnerabilities. These parameters are reviewed and discussed for some special graphs as well.

This study was intended to investigate the effect of injection of aluminium into the crystallizator on type, composition and activity of inclusions in low carbon steel grade USD7. The steel is made in Zob-e-Ahan Isfahan factory and its porosities and inclusions results in the problem of rupturing during rolling process. To improve the quality of this steel, 2.4 mm diameter pure aluminum wires were injected in to the crystallizator at the rate of 2, 4, 6 or 8 m/min in certain periods and then sampling was done. The results indicated that much of the added aluminum changed to aluminum oxide slag, and the remaining part altered the chemical composition of the inclusions. Increased aluminum caused an increase in the activity of alumina and reduction in the activity of other oxides in the slag and existing inclusions in the melt. By increasing Al2O3 activity from 0.313 to 0.649, the Al2O3 formation and oxygen exclusion probability increased in the system. Scanning electron microscopy showed that without aluminium injection, most of inclusions were FeO-MnO type placed around existing porosities in the ingot. The optimum rate of aluminum injection was found to be 4 m/min.

Carbohydrate chains link to glycoproteins and glycolipids of the cell surface particulary their terminal sugars have key roles in cellular activities of almost all biological systems. Distribution of these glycoconjugates in adult kidney has not received fair attention yet. The purpose of this study was to identify in situ location of galactose – N – acetyle galactoseamine moleucles on the surface of the adult rat kidney.

After the resection of rat kidney and rotin fixation with regular lectin histochemical technique, MPA and PNA conjugated to horseradish peroxidase, lectins specific to indentify these terminal sugars in rat kidney.

Intense reaction of PNA to collective tubules, less intense and reaction with luminal surface of proximal tubules and MPA identified distinct cells among distal tubules as well as glomerules were observed.

It seems that this specific sugars related to the cellulars function of this region of adult kidney and probably genetically is regulated during embryonic development.