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Search Results: 1 - 10 of 12605 matches for " Taji Di Linuer "
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The Effect of Renal Sympathetic Denervation (RSD) in Atrial Fibrillation (AF) Inducibility  [PDF]
Indra Prasad Upadhyay, Jialu Hu, Wugeti Naji Na, Wang Kun, Taji Di Linuer, Zhao Li, Alia  , Yuemei Hou
World Journal of Cardiovascular Diseases (WJCD) , 2014, DOI: 10.4236/wjcd.2014.44020
Abstract: Objective: The purpose of this study is to investigate the effects of renal sympathetic nerve stimulation (RSN-S) and ablation (RSN-A) on atrial effective refractory period (ERP) and AF in normal canine heart. Atrial Fibrillation (AF) is a complex disease and one of the most frequent arrhythmias, especially in elderly patients. Multiple mechanisms are involved including interaction between the autonomic nervous system (ANS), electrophysiological properties of the atria, and vulnerability for AF. Cardiac overload increases the incidence of AF. In lone AF the triggers are in the pulmonary veins. AF caused by underlying disease has different mechanism. Atrial fibrillation (AF) is associated with activity of renin-angiotensin-aldosterone system (RAAS). Reduction in renal nor-adrenaline spillover could be achieved after renal sympathetic denervation (RSD). Methods: 1) Establish of atrial fibrillation model; 2) Ventricular rate analysis of AF; 3) Statistical analysis. Results: 1) The establishment of atrial fibrillation model; 2) Inducibility and duration of AF; 3) The changes of AERP dispersion. Conclusion: Left RSN-S shortened left atrial ERP, increased ERP dispersion, but did not change right atrial ERP. Bilateral RSN-A produced significant prolongation in both atrial ERP, but did not affect ERP dispersion. The on time of RD effect is at 4 hrs after RD procedure and the RD effect on AF will last for 20 hrs after RD procedure.
On Gap Functions for Quasi-Variational Inequalities
Kouichi Taji
Abstract and Applied Analysis , 2008, DOI: 10.1155/2008/531361
Abstract: For variational inequalities, various merit functions, such as the gap function, the regularized gap function, the D-gap function and so on, have been proposed. These functions lead to equivalent optimization formulations and are used to optimization-based methods for solving variational inequalities. In this paper, we extend the regularized gap function and the D-gap functions for a quasi-variational inequality, which is a generalization of the variational inequality and is used to formulate generalized equilibrium problems. These extensions are shown to formulate equivalent optimization problems for quasi-variational inequalities and are shown to be continuous and directionally differentiable.
Birational positivity in dimension 4 (with an appendix by Frédéric Campana)
Behrouz Taji
Mathematics , 2013,
Abstract: In this paper we prove that for a nonsingular projective variety of dimension at most 4 and with non-negative Kodaira dimension, the Kodaira dimension of coherent subsheaves of $\Omega^p$ is bounded from above by the Kodaira dimension of the variety. This implies the finiteness of the fundamental group for such an $X$ provided that $X$ has vanishing Kodaira dimension and non-trivial holomorphic Euler characteristic.
The isotriviality of families of canonically-polarized manifolds over a special quasi-projective base
Behrouz Taji
Mathematics , 2013,
Abstract: In this paper we prove that a smooth family of canonically polarized manifolds parametrized by a special (in the sense of Campana) quasi-projective variety is isotrivial.
Effect of different levels of cadmium and sulfur on yield, cadmium concentration and micronutriets of corn (Zea Mays L.) leaves and roots under greenhouse conditions
H. Taji,A. Golchin
Journal of Science and Technology of Greenhouse Culture , 2011,
Abstract: To investigate the potential of corn (Zea Mays) for cleaning of soils polluted by cadmium and the effect of different levels of sulfur (S) element on biomass and root and concentration of some micronutrients, a greenhouse experiment was performed in Zanjan University in 2008. In the completely randomized factorial design with three replications, three levels of elemental S (0, 1 and 2 ton ha-1) and six levels of Cd (0, 50, 100, 150, 200 and 250 mg kg-1) as cadmium sulphate were added to the pots. Seeds of SC 704 corn cultivar were sown in the pots. The results showed that Cd and S levels had significant effects (P< 0.01) on Cd concentration, fresh and dry weight, concentration of Zn, Fe and Mn of aerial parts and roots of plants. As the soil Cd concentration increased, the concentration of Cd in roots and aerial parts of the corn plants increased but fresh and dry weight of these parts was decreased. Application of S increased the concentration of Cd in the roots and aerial parts of corn, but it decreased the weights of these parts. Concentration of Zn, Fe, Cu and Mn in aerial parts was decreased by application of Cd and S. It seems that application of S enhances adsorption of Cd by plant roots.
A characterization of finite quotients of Abelian varieties
Steven Lu,Behrouz Taji
Mathematics , 2014,
Abstract: In this paper we prove a characterization of quotients of Abelian varieties by the actions of finite groups that are free in codimension-one via some vanishing conditions on the orbifold Chern classes. The characterization is given among a class of varieties with mild singularities that are more general than quotient singularities, namely among the class of klt varieties. Furthermore we show that over a projective klt variety, any semistable reflexive sheaf with vanishing orbifold Chern classes can be obtained as the invariant part of a locally-free sheaf on a finite Galois cover whose associated vector bundle is flat.
Comparison of the effects of ethinyl estradiol and genistein on serum lipids and lipoproteins of hypercholestrolemic male rats
Shohreh Iranmanesh,Akbar Vahdati,Taji Afrouz
Physiology and Pharmacology , 2006,
Abstract: Introduction: Estrogen is one of the female sex hormones that in addition to its reproductive role, has favorable fects on the metabolism of blood lipids and lipoproteins and by this way decreases the coronary heart disease. n the other hand, phytoestrogens are phytochemical substances that have effects like estrogens. Isoflavones, hich the most important of them is genistein, are the most common form of phytoestrogens. In this research, the fects of one phytoestrogenic compounds named genistein and one estrogenic compound named ethinyl estradiol ere compaired. The purpose of this comparison was to study of replacement possibility of phytoestrogens in RT period for elimination of side effects of estrogenic compound. Methods: First the rats were fed for 2 months with high cholestrol diet (2% cholestrol, 0/5% cholic acid). fter the first blood test ensured the hypercholestrolemic condition, the rats were treated for 2 months with ethinyl stradiol and genistein besides of high cholestrol diet. After the end of the second period and serum preparation om the blood samples disignated total cholestrol, triglyceride, HDL, LDL and VDL were measured and the sults were statistically analyzed. Results: According to the obtained results of the first period of experiment, the usage of high cholestrol diet aused meaningful increase in total cholestrol and LDL as it made rats hypercholestrolemic. According to the sults of second period of experiment, the usage of ethinyl estradiol reduced the level of serum total cholestrol nd LDL of hypercholestrolemic rats, that was because of the effect of estrogen on increase of LDL catabolism. hereas, it did not produce meaningful changes in triglyceride, HDL and VDL. Usage of genistein in isolated rm had no benefical effect on blood lipids and lipoproteins, Because hypocholestrolemic property of isoflavone epends on matrix that is beside it.
Single- versus two- layer intestinal anastomosis: a meta-analysis of randomized controlled trials
Satoru Shikata, Hisakazu Yamagishi, Yoshinori Taji, Toshihiko Shimada, Yoshinori Noguchi
BMC Surgery , 2006, DOI: 10.1186/1471-2482-6-2
Abstract: Randomized controlled trials comparing single- with two-layer intestinal anastomosis were identified using a systematic search of Medline, Embase and the Cochrane Library Databases covering articles published from 1966 to 2004. Outcome of primary interest was postoperative leak. A risk ratio for trial outcomes and weighted pooled estimates for data were calculated. A fixed-effect model weighted using Mantel-Haenszel methods and a random-effect model using DerSimonian-Laird methods were employed.Six trials were analyzed, comprising 670 participants (single-layer group, n = 299; two-layer group, n = 371). Data on leaks were available from all included studies. Combined risk ratio using DerSimonian-Laird methods was 0.91 (95% CI = 0.49 to 1.69), and indicated no significant difference. Inter-study heterogeneity was significant (χ2 = 10.5, d.f. = 5, p = 0.06).No evidence was found that two-layer intestinal anastomosis leads to fewer post-operative leaks than single layer. Considering duration of the anastomosis procedure and medical expenses, single-layer intestinal anastomosis appears to represent the optimal choice for most surgical situations.The basic principles of intestinal suture were established more than 100 years ago by Travers, Lembert and Halsted [1], and have since undergone little modification. Development of stapling instruments for intestinal anastomosis has added new dimensions to intestinal surgery. Two systematic reviews of randomized controlled trials (RCTs) comparing stapled with hand-sewn colorectal anastomosis found no difference between the two methods [2,3], but colorectal surgeons need to be familiar with both. Unsurprisingly, hand-suturing techniques were shown to display a longer learning curve than stapling [4]. One aspect of intestinal suturing technique that has remained controversial is the use of either one or two layers of sutures for anastomosis.Historically, two-layer anastomosis using interrupted silk sutures for an outer inverted se
SOME WEED SPECIES AFFECTING SOYBEAN NODULATION AND NODULE FUNCTION
Irawati Chaniago,Acram Taji,Paul Kristiansen,Robin Jessop
Agrivita : Journal of Agricultural Science , 2012,
Abstract: Experiments aimed at examining the effect of aqueous extracts of three weed species on nodulation and nodule function of soybean cv. Melrose have been carried out at the Laboratory of Plant Physiology and Biotechnology, Department of Agronomy and Soil Science, University of New England, Australia. Aqueous extracts of fresh weed material (Amaranthus powellii, Cyperus rotundus and Paspalum dilatatum) at the concentration of 10% (w/v) were added to a minus-nitrogen Hoagland’s nutrient solution in which the soybean plants were grown with 14 hours day length, day and night temperatures of 28 and 20°C, respectively, light intensity of 790 mol/m2/s, and the relative humidity of 65%. The plants were kept for three weeks prior to the measurement of activity of nitrogenase enzyme and ammonium content of the root nodules. All weed extracts tested resulted in impairment of soybean nodulation and nodule function as indicated by reduced activity of nitrogenase enzyme activity (acetylene reduction assay - ARA). Although amaranth extract was most inhibitory to the nitrogenase enzyme activity, it was less inhibitory than nutgrass extract in reducing the total ammonium content of the soybean root nodules.
A Comparison between the Antioxidant Strength of the Fresh and Stale Allium sativum (Garlic) Extracts
Fatemeh Taji,Hedayatollah Shirzad,Kurosh Ashrafi,Neda Parvin
Zahedan Journal of Research in Medical Sciences , 2012,
Abstract: Background: Fruits and vegetables are considered as the source of antioxidant and the factor of destroying reactive oxygen species. The effect of this antioxidant might decrease in time. This study was aimed at examining and comparing the antioxidant effect and the level of phenolic and flavonoid compounds as well as allicin level, between fresh and three-month stale Allium sativum (garlic).Materials and Methods: In an experimental study, the ethanolic extract of bushes of fresh and three-month-old Allium sativum was prepared and their antioxidant activities were assessed in linoleic acid and β-carotene linoleate system. The amount of phenolic compounds was measured by Folin-Ciocalteumethod, based on gallic acid; the amount of flavonol and flavonoid compounds by aluminum chloride base on rutin base; and the amount of allicinby spectrophotometry method. SPSS-15 Software and t-statistic tests were used to analyze the mean difference between the results of two groups and p<0.05 was considered as significant. Results: The efficiency of fresh garlic (35.36) in inhibiting the oxidation was higher (p<0.05) comparing to three-month dated Allium sativum (10.2). Phenolic compounds of the fresh garlic (12.61mg/g) were more than the three-month dated Allium sativum (2.89mg/g). The amount of allicin was respectively 15 μg/ml and 8 μg/ml in the fresh and three-month dated Allium sativum (p<0.05).Conclusion: The fresh garlic contains more useful substances and it is recommended to be used in its fresh estate.
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