Let Crn (Fp) denote the algebra of n´n circulant matrices over Fp, the finite field of orderp a prime. The order of the UNIT GROUPs U (Cr3 (Fp)), U (Cr4 (Fp)) and U (Cr5 (Fp)) of algebras of circulant matrices over Fp are computed.

Let Crn (F) denote the algebra of n´n circulant matrices over the field F. In this paper, we study the UNIT GROUP of Crn (Fpm), where Fpm denotes the Galois field of order pm, p prime.

The much-studied projectable hull of an l-GROUP G£pG is an essential extension, so that, in the case thatG is archimedean with weak UNIT, “G ÎW”, we have for the Yosida representation spaces a “covering map” Y G ¬Y pG. We have earlier [8] shown that (1) this cover has a characteristic minimality property, and that (2) knowingY pG, one can write downpG. We now show directly that for A, the boolean algebra in the power set of the minimal prime spectrum Min (G), generated by the sets U(g) = {P Î Min (G): g  Ï P} (g ÎG), the Stone space SA is a cover of Y Gwith the minimal property of (1); this extends the result from [1] for the strong UNIT case. Then, applying (2) gives the pre-existing description ofpG, which includes the strong UNIT description of [1]. The present methods are largely topological, involving details of covering maps and Stone duality.

When the density current smashes into the lower dense fluid mass a plunge region will occur. Since the plunge depth bounds between density current and ambient fluid, determining of this point is important. In this research, the hydraulic parameters of density current and bed slope of stagnant fluid were investigated. To achieve the purpose of this research a physical model was built in the hydraulic laboratory of Shahid Chamran University (SCU) and various experiments were performed. In the experiments, the plunge depth at the different discharge of density current and density difference 6, 9, 13 and 16 kg/m3 at three slopes 8, 12 and 16% was measured. Then using Flow-3D under RNG turbulence model, plunge depth was simulated for the same experimental condition. The comparison of results obtained showed that the predicted plunge depth with Flow-3D under RNG turbulence model had a high and satisfactory accuracy. Finding showed that for the 8% bed slope, the results of RNG turbulence model 14% was more than experimental data. While, for the entire slope, the results of RNG turbulence model was predicted 10.5% in average more than measured data. Generally, the statistical investigations showed that the RNG turbulence model with satisfactory precision estimated the plunge point depth.

Let FqD2n be the GROUP algebra of D2n, the dihedral GROUP of order 2n, over Fq=GF (q).In this paper, we establish the structure of u (F2kD2n), the UNIT GROUP of F2kD2n and that of its normalized UNITary subGROUP V* (F2kD2n) with respect to canonical involution * when n is odd.

In this paper we consider the GROUP algebra R (C2xD¥). It is shown that R (C2xD¥) can be represented by a 4x4 block circulant matrix. It is also shown that m (Z2 (C2xD¥)) is innitely generated.

The effects of two isolates of Pasteuria penetrans were evaluated on root knot nematodes, Meloidogyne javanica and M. incognita-R2 on two month seedlings of Badamiriz pistachio cultivar. Two experiments were carried out with two concentrations of endospores of PA and PNG isolates (104 & 6.4×105 endospores/g soil) and cadusafos (50 Mg/1500 g soil) in a Randomized Complete Block Design in green house condition were planted in pot and treatments were applied at seedling stage (4-6 leaf). 80 days after planting the seedlings were removed from soil and all stages of nematodes were extracted and counted in roots and soils. The results showed that the PA isolate with 104 endospores/g soil was the best treatment in decreasing 88.8٪ of the final population of M. incognita-R2 in comparison with control, also PNG isolate with 6.4×105 endospores/g soil was the best treatment after nematicide in decreasing 71.2% of the final population of M. javanica when compared with control.

The effects of irrigation periods and fertilizer nitrogen rates on population of black bean aphid were studied in sugar beet fields of Isfahan University of Technology for two years. Experiments were carried out as splitplot in a complete randomized block design with four replications.Irrigation factor in three levels (100%, 75% and 50% plant water requierment in 2005 and irrigation after 70, 105 and 140 mm cumulative evaporation from class A pan in 2006) and nitrogen fertilizer in three levels (200, 150 and 100 kg/ha net nitrogen in both years) were allocated to main and subplots respectively. Pest population was assessed by weekly sampling. The highest mean population of black bean aphid was observed in 100% irrigation treatment in the first year and in irrigation after 70 mm evaporation treatment in the second year and in 200 kg/ha nitrogen treatment in both years. As irrigation cycle doubled in 200 kg/ha net nitrogen treatment, population of black bean aphid increased by 177.9 times.

Introduction: Nursing interventions have a direct impact on patients’ clinical status. Nurses should be aware of the dangers of intubation tube suction and have continuous training in this field. The aim of this study was to determine the effect of education standard suction with small GROUP on nurses’ performance in intensive care UNIT. Methods: This was a quasi-experimental study which was conducted before and after intervention in 2017. The statistical population included 40 nurses working in the intensive care UNIT who were selected by convenience sampling. First, nurses’ performance in the suction process was evaluated by a standard checklist in an imperceptible way. Then, standard suction training was performed in three sessions of one hour using the small GROUP discussion method. One month after training, nurses’ suction function was evaluated again and analyzed by SPSS16. Results: The mean of standard suction score after training (64. 4 ± 3. 7) was significantly different from the pre-training (58. 5 ± 3. 5), which is statistically significant (t-test) (P>0/05). Conclusion: The results showed that nurses’ function in the area of suction needs more attention. In order to improve the clinical performance of nurses, the use of training in small GROUPs is useful. Therefore, training courses in small GROUPs should be offered in the form of in-service nursing courses.

Carbonate deposits of members 1 to 2 of the Mila GROUP (Middle Cambrian) in Central Alborz that call the Deh-Sufiyan Formation in this research, were studied in Shahmirzad, Tueh-Darvar, Mila-Kuh and Deh-Molla sections. The UNIT 2 of Deh-Sufiyan Formatrion in Central Alborz of Northern Iran consists mainly of shallow marine carbonates and contains a variety of limestone conglomerates. Limestone conglomerate is an important component of UNIT 2 of Deh-Sufiyan Formatrion, but its origins remain enigmatic. These limestone conglomerates have a diverse set of characteristics that range from clast to matrix supported with scattered flat pebbles. These conglomerates are largely comprised of oligomictic, rounded lime–mudstone clasts of various sizes and shape (equant, oval, discoidal, tabular, and irregular). According to composition and characteristic sedimentary structures and fabric, limestone conglomerates in the UNIT 2 of Deh-Sufiyan Formatrion consist of: (1) Intraformational limestone conglomerate beds were formed by depositional processes (2) Limestone pseudoconglomerate beds were produced by diagenetic processes. The common characteristics of the UNIT 2 of Deh-Sufiyan Formatrion pseudoconglomerates, such as oligomictic lithology of lime–mudstone clasts, mosaic fabric, disorganized/edgewise fabric, variable and gradational fabric, transitions from adjacent or underlying facies and the complete lack of depositional structures, are typical of pseudo conglomerates formed by early diagenetic sediment deformation under shallow burial conditions. These characteristics are different from those of intraformational limestone conglomerate showing primary depositional features such as normal or inverse grading, internal stratification, (hummocky) cross-stratification and sharp erosional bases. Diagenetic conglomerates in ribbon rocks resulted from soft-sediment deformation of ribbon rocks during early diagenesis. In contrast, the dimension and thickness, sizes of the clasts, clast-rich beds, size ingredient of matrix, tendency to amalgamate with amalgamation scours within depositional conglomerates suggest that high energy and strong erosion above storm wave base was responsible for the disintegration of the carbonate material.