101 research outputs found
First data on the taxonomic diversity of the Portulaca oleracea aggregate (Portulacaceae) in Iran
No full textThe review of specimens from Iran belonging to the Portulaca oleracea L. aggregate resulted in the recognition of six microspecies: P. cypria Danin, P. granulatostellulata (Poelln.) Ricceri & Arrigoni, P. nitida (Danin & H.G.Baker) Ricceri & Arrigoni, P. rausii Danin, P. socotrana Domina & Raimondo, and P. trituberculata Danin, Domina & Raimondo, all reported for the first time for the flora of Iran. The identification was based on the microscopic study of seeds. It is noted that P. oleracea is not confirmed for Iran. Distribution data and an identification key for Portulaca microspecies in Iran are presented
The conflict between idealism and realism in the cinema of Mohammad Hossein Mahdavian; The analysis of three films “Lottery”, “Rad-e-Khoon”, and “Majaraye Nimrooz”
No full textThe intricate dynamic between idealism and realism, coupled with the challenges of regulating their interrelation, plays a major role in forming social structures and community life. Post-revolutionary systems, having successfully redefined prevailing conditions through the proposition of an idealized state, confront the difficult challenge of defining new paradigms that are consistent with this ideal. Cinema, as a social institution, by means of its narrative language can address profound social dilemmas and actively participate in the representation and organization of conflicts inherent in collective existence, most notably the ideological discord between idealism and realism.Several generations of Iranian filmmakers in the post-Islamic revolution cinema through the perspective of their ideology have concentrated on this issue and provided various interpretations of the dynamic tension between idealistic ambitions and pragmatic reality. In this study, three feature films, “Lottery”, “Majaraye Nimirroz [Midday Adventures]”, and “Rad-e Khoon [Trace of Blood]” by Mohammad Hossein Mahdavian, one of the young directors of Iran who have explored this conflict, are examined through an analytical lens influenced by John Fiske methodology. The findings reveal that in these films idealism manifests itself in conscientiousness, Jihad, and principlism, while realism is represented in concepts such as pragmatism, pacifism, and tolerance. Although the filmmaker seems to favor pragmatic ideas, he perceives both idealism and realism as fundamentally deficient in isolation
Endemic and Rare Species of Cyperaceae Family in Iran
No full textCyperaceae, with about 131 species, is the largest family of subclass Monocotyledoneae in Iran after Poaceae and Liliaceae. In this research, endemic and rare plants belonging to Cyperaceae family has been studied in Iran. Cyperus celans and Carex decaulescens subsp. brunneola are endemic plants. Number of 36 taxa has been surveyed as threatened plants. Also, phytogeographical region, index of threatened, life form, habitat, and distribution map has been prepared for each taxon
Heavy metal concentrations in the selected tissues of the Persian sturgeon, Acipenser persicus, from the southern coast of the Caspian Sea
No full textBioaccumulation of heavy metals including Cd, Pb, Cu and Zn in muscle, gill, liver, kidney and stomach in Acipenser persicus was studied. Fish were collected from the ‘Iranian fishery zone 1’ located between Astara and Kiyahshahr. Samples (n=25) were collected from five stations in the study area during the autumn catch season in 2001. Samples were analyzed by wet digestion with hydrogen peroxide and nitric acid. Analyses were testified using spike method. A sample of bovine liver (CRM 185R) was tested to ascertain reliability of analyses. Digested samples were analyzed using Flame Atomic Absorption Spectrophotometer. The bioaccumulation pattern for Zn in different tissues studied was stomach>liver> kidney> gills>muscle tissue. The mean concentration of Zn in the stomach was 136.6±10.70μg g-1 dry weight. Cu with the maximum concentration of 39.71±8.85μg g-1 dry weight in liver showed a bioaccumulation pattern of liver>kidney>stomach>gills>muscle tissue. The bioaccumulation pattern for Pb was determined as gills>liver> kidney>stomach>muscle tissue. Maximum mean concentrations of Pb 6.87±2.25μg g-1 dry weight belonged to gills. Bioaccumulation pattern for Cd in the different organs studied in A. persicus was kidney>liver>gills>stomach> muscle tissue. Maximum mean concentration of 5.1±0.97μg g-1 dry weight belonged to kidneys and the minimum mean concentration of 0.05±0.007μg g-1 dry weight belonged to muscle tissue. Concentration of the metals in the muscles samples were below the most guidelines for human consumption.Concentrations for heavy metals were lower than the guidelines in some organs and were higher than that in the other organs studied. The observed concentrations do not pose health problems as these organs are not used for human consumption
Assessing heavy metal content of muscle tissue and caviar of Acipenser persicus and Acipenser stellatus in southern Caspian Sea
No full textWe sampled 139 specimen of Acipenser persicus and 103 Acipenser stellatus over the years 1998-1999 in five fishing zones of the southern Caspian Sea for heavy metal contamination assessment. Flame Atomic Absorption Spectrophotometry was used to determine contamination of the specimens with Zn, Cu, Cd, and Pb and cold vapor method for Hg.
The mean age for A. persicus and A. stellatus was 17.6±2.6 years and 11.9±1.8 years, respectively. The mean concentrations of heavy metals assessed for dry weight of the muscle tissues and caviar in A. persicus were 26.9 and 65.9 µg/g for Zn, 1.8 and 4.2 µg/g for Cu, 0.61 and 0.111 µg/g for Pb and 0.61 and 0.005 µg/g for Cd. The wet weight concentration of Hg in the muscle tissue and caviar of the fish were 0.06 and 0.007 µg/g respectively. For A. stellatus we determined the mean concentration of heavy metals in dry weight of the muscle tissue and caviar to be 27.4 and 57.8 µg/g for Zn, 1.64 and 4.85 µg/g for Cu, 0.481 and 0.112 µg/g for Pb and 0.59 and 0.005 µg/g for Cd while the wet weight concentration of Hg were 0.05 and 0.008 µg/g. By international standards, the contamination of the muscle tissue and caviar samples with the heavy metals in the two sturgeon species are well below maximum allowable for human consumption.Publishe
Heavy metal concentrations in the selected tissues of the Persian sturgeon, Acipenser persicus, from the southern coast of the Caspian Sea
Get PDFBioaccumulation of heavy metals including Cd, Pb, Cu and Zn in muscle, gill, liver, kidney and stomach in Acipenser persicus was studied. Fish were collected from the ‘Iranian fishery zone 1’ located between Astara and Kiyahshahr. Samples (n=25) were collected from five stations in the study area during the autumn catch season in 2001. Samples were analyzed by wet digestion with hydrogen peroxide and nitric acid. Analyses were testified using spike method. A sample of bovine liver (CRM 185R) was tested to ascertain reliability of analyses. Digested samples were analyzed using Flame Atomic Absorption Spectrophotometer. The bioaccumulation pattern for Zn in different tissues studied was stomach>liver> kidney> gills>muscle tissue. The mean concentration of Zn in the stomach was 136.6±10.70μg g-1 dry weight. Cu with the maximum concentration of 39.71±8.85μg g-1 dry weight in liver showed a bioaccumulation pattern of liver>kidney>stomach>gills>muscle tissue. The bioaccumulation pattern for Pb was determined as gills>liver> kidney>stomach>muscle tissue. Maximum mean concentrations of Pb 6.87±2.25μg g-1 dry weight belonged to gills. Bioaccumulation pattern for Cd in the different organs studied in A. persicus was kidney>liver>gills>stomach> muscle tissue. Maximum mean concentration of 5.1±0.97μg g-1 dry weight belonged to kidneys and the minimum mean concentration of 0.05±0.007μg g-1 dry weight belonged to muscle tissue. Concentration of the metals in the muscles samples were below the most guidelines for human consumption.
Concentrations for heavy metals were lower than the guidelines in some organs and were higher than that in the other organs studied. The observed concentrations do not pose health problems as these organs are not used for human consumption
Assessing heavy metal content of muscle tissue and caviar of Acipenser persicus and Acipenser stellatus in southern Caspian Sea
Get PDFWE sampled 139 specimen of Acipenser persicus and 103 Acipenser stellatus over the years 19984999 in five fishing zones of the southern Caspian Sea for heavy metal contamination assessment. Flame Atomic Absorption Spectrophotometery was used to determine contamination of the specimens with Zn, Cu, Cd, and Pb and cold vapor method for Hg. The mean age for A. persicus and A. stellatus was 17.6±2.6 years and 11.9±1.8 years, respectively. The mean concentrations of heavy metals assessed for dry weight of the muscle tissues and caviar in A. persicus were 26.9 and 65.9 µg/g for Zn, 1.8 and 4.2 µg/g for Cu, 0.61 and 0.111 µg/g for Pb and 0.61 and 0.005 µg/g for Cd. The wet weight concentration of Hg in the muscle tissue and caviar of the fish were 0.06 and 0.007 µg/g respectively. For A. stellatus we determined the mean concentration of heavy metals in dry weight of the muscle tissue and caviar to be 27.4 and 57.8 µg/g for Zn, 1.64 and 4.85 µg/g for Cu, 0.481 and 0.112 µg/g for Pb and 0.59 and 0.005 µg/g for Cd while the wet weight concentration of Hg were 0.05 and 0.008 µg/g. By international standards, the contamination of the muscle tissue and caviar samples with the heavy metals in the two sturgeon species are well below maximum allowable for human consumption
Heavy metal concentrations (Zn, Cu, Pb, Cd) in sediments of the southwest Caspian Sea Basin (Astara to Kiyashahr)
No full textHeavy metals Zn, Cu, Pb, Cd concentration in sediments of the Iranian waters of the Caspian Sea was measured in fall 2001.Samples were collected from transects along the Iranian coastline in five stations lying between Astara (48 52', 38 26') up to Kiyashahr (49 53', 37 27'). Metals were extracted from sediments by digesting with hydrofluoric and hydrochloric acid. Metals concentrations were measured using the Atomic Absorption Spectrophotometer. Reliability of results was tested using Soil-7, a certificated reference material (CRM). Sediment samples were also collected from each station to determine grain size. The results showed that except for Cd concentration which was measured at 4.5kg g super(-1) dry weight, other values were lower than the Effects Range Low (ERL) (1.2kg g super(-1) dry weight) based on the Sediment Quality Guidelines from NOAA, USA for Cd. Also, the highest concentration determined for Cu (19.55kg g super(-1) dry weight) in this study was lower than the ERL (34kg g super(-1) dry weight) value determined by NOAA for Cu. The highest concentrations for Pb and Zn in the present study were 25.7kg g super(-1) dry weight and 54.5kg g super(-1) dry weight, respectively that were lower than the ERL values (Pb = 47kg g super(-1) dry weight and Zn = 124kg g super(-1) dry weight) declared by NOAA for these metals. It is evident from the present study that heavy metals concentrations in sediments in the study area were lower than Effects Range Low values for these metals. We conclude that the studied metals are not threatening to the environment at the present time.Publishe
SME’s Enterprise Resource Planning Implementation, Competitive Advantage, and Marketing Performance
Get PDFEnterprise Resource Planning (ERP) is an integrated application software for widespread use in the organization. The aim of this study is to determine factors that affect the successful implementation of ERP in Small and Medium Enterprises (SMEs) in Central Java in order to build competitive ad-vantage and increase marketing performance. To test the 9 hypothesis, this study utilized data from 107 SMEs in Central Java. The results revealed that variable hardware and software selection have the greatest influence toward the successful implementation in Small and Medium Enterprises. It is suggested that SMEs should gain knowledge and solidify its business process reengineering before implementing ERP.
Research paper
Reference to this paper should be made as follows: Raharjo, S. T., Mudiantono, Perdhana, M. S. (2016). “SME’s Enterprise Resource Planning Implementation, Competitive Advantage, and Market-ing Performance: Finding from Central Java, Indonesia”, Journal of Entrepreneurship, Business and Economics, Vol. 4, No. 1, pp. 22–44.
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