Showing 3 results for Lagzian
Volume 5, Issue 4 (5-2016)
Abstract
This study examines the impact of organizational communication on human resource management architecture which is conducted in one of the governmental agencies. This research is an applied research and is a descriptive survey. Data collected using questionnaire consisted of three parts, first, demographic information. Second, effective organizational communication assessment which is based on six components of Robbins model and consists of 37 questions. Third, measurement of human resource management architecture which consists of 19 questions from (readers et. al 2012). as reliability and validity of measuring instruments confirmed, population of this study is managers and employees of Khorasan-e-Razavi, which 280 of them randomly selected as the study sample. Data Analyzed using SPSS and LPS software. results show that effective organizational communication has a significant positive relationship with human resource management architecture and contribute to its implementation.
Volume 10, Issue 1 (6-2010)
Abstract
Abstract
Earthquake reconnaissance has identified shear failure of reinforced concrete columns as a primary cause of
failure of older existing reinforced concrete columns. Satisfactory seismic response of reinforced concrete
columns requires that brittle failure modes be inhibited. In this research, different factors which affect the shear
failure of columns have been studied, and then by using the results of 103 cyclic loading tests on columns, a new
model for estimation of shear strength degradation under cyclic loading has been developed. The proposed
model can be used to estimate shear strength degradation of reinforced concrete columns with shear, shear
flexural and flexural failure separately. Uncertainty of the results of this model is little because the study has
been concentrated on the three independent groups of the columns with one specified failure mode. The results
of cyclic loading tests used in this study have been taken from the PEER ( Pacific Earthquake Engineering
Research Center) database.
Volume 24, Issue 4 (7-2022)
Abstract
Biofilm formation and rhizosphere colonization of the plants are the main infrastructures for the biological control of the plant diseases. Bacteria accumulation in the protective layer, which results from their self-production of Exopolysaccharides (EPS), is called the biofilm. The formation of these complex structures originates from the multicellular behaviors of bacteria. Various elements can play a role in these mechanisms. In this study, we examined biofilm formation, root colonization, and salt tolerance to four concentrations of NaCl in the strains of Bacillus velezensis (Q12, US1, and UR1). The results showed that the biofilm strength plays an important role in the efficiency of tomato root colonization. Furthermore, UR1 that had defects in producing the surfactin, iturin, and fengycin using Ultrahigh-Performance Liquid Chromatography-High Resolution Electrospray Ionization Mass Spectrometry (UHPLC-HRESIMS), was incapable of tolerance to salinity, biofilm formation, competition, and rhizosphere colonization. Confocal Laser Scanning Microscopy (CLSM) studies showed that strains US1 and Q12 differed in the biofilm strength, the position of the bacteria that are located laterally, polar, or both, and root colonization. Q12 was introduced as the best strain in all these experiments. Also, based on the findings of this and previous studies, the possibility to create the subpopulations influenced by genetic diversity in Bacillus velezensis strains during biofilm formation is suggested.