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Registros recuperados: 57
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A faunistic study on some subfamilies of Braconidae (Hymenoptera: Ichneumonoidea) from Iran Naturalis
Samin, N.; Achterberg, C. van; Erdoğan, Ö. Ç..
This paper deals with the species of Braconidae (Hymenoptera: Ichneumonoidea) recently collected in 13 provinces of Iran. In total, 33 species belonging to 16 subfamilies: Charmontinae, Cheloninae, Doryctinae, Euphorinae, Exothecinae, Histeromerinae, Homolobinae, Ichneutinae, Macrocentrinae, Microtypinae, Miracinae, Orgilinae, Rhysipolinae, Rhyssalinae, Rogadinae, and Sigalphinae were collected and identified.
Tipo: Article / Letter to the editor Palavras-chave: Hymenoptera; Ichneumonoidea; Braconidae; Faunistics; Iran.
Ano: 2016 URL: http://www.repository.naturalis.nl/record/624457
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Age at Menarche and Related Factors in Girlsof Urban Areas of Markazi (Central) Province of Iran International Journal of Morphology
Bayat,ParvinDokht; Ghanbari,Ali; Khazaei,Mozafar; Ghorbani,Rostam; Amiri,Sara.
The age at menarche is an indicator of racial, geographical and nutritional patterns of different societies. This cross-sectional study conducted on 1223 girls aged 14-20 in the Markazi (Central) Province, Iran in 2010. In this research, the age at menarche, as the main variable, was determined for each city and compared between different cities. The statistical analyses included c2 test for determining statistically significant differences, variance analysis for determining the difference between groups, and Pearson correlation coefficient for determining the relationship between variables. The average age of first menstruation was 13.21±1.33 years in the Markazi Province, with no significant difference among the cities of the province. This age is...
Tipo: Journal article Palavras-chave: Fertility; Growth; Iran; Menarche.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100002
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Agricultural Producer Support Policy in Iran and Selected Countries AgEcon
Yazdani, Saeed; Vaezi, L..
Agricultural policies in Iran have aimed at achieving self-sufficiency in food productions through the government various policies. The aim of this paper is to examine the current level of protection which may exist in agricultural sector in Iran and other countries. The results indicate that the PSE in Iran is much higher than the OECD and is close to Japanese and Korean PSE percentage (i.e. 58 and 64 percent). The broadest indicator of support representing the sum of transfers to agricultural producers (PSE), expenditure for general services (GSSE), and direct budgetary transfers to consumers, reached 83 billion Dollars per year in 2001-2005 which is almost equivalent to 13.4 percent of Iran’s GDP in this period. This is much...
Tipo: Journal Article Palavras-chave: Iran; Producers; Support Policy; PSE; GSSE; Agricultural and Food Policy; Q18.
Ano: 2009 URL: http://purl.umn.edu/58063
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An Examination of the Relationship between Food Prices and Government Monetary Policies in Iran AgEcon
Shahnoushi, Naser; Henneberry, Shida Rastegari; Manssori, Hooman.
This study examines the relationship between food prices and monetary policy variables, using a Vector Error Correction Model (VECM) approach applied to annual data from 1976 to 2006. Results indicate that food prices in Iran have a long-run and short-run equilibrium granger causality relationship with money supply. More specifically, monetary policy reforms are shown to have a significant impact on food prices and domestic agricultural production. These policies influence consumption patterns and have serious implications for poverty reduction, food security issues, and agricultural growth in Iran.
Tipo: Conference Paper or Presentation Palavras-chave: VEC model; Food Prices; Monetary policy; Iran; Agricultural and Food Policy.
Ano: 2008 URL: http://purl.umn.edu/46078
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An overview of a diagnostic and epidemiologic reappraisal of cutaneous leishmaniasis in Iran BJID
Farahmand,Mahin; Nahrevanian,Hossein; Shirazi,Hasti Atashi; Naeimi,Sabah; Farzanehnejad,Zahra.
Cutaneous leishmaniasis (CL) is a widespread tropical infection which has a high incidence rate in Iran. Leishmania tropica, the causative agent of anthroponotic cutaneous leishmaniasis (ACL), and Leishmania major, which causes zoonotic cutaneous leishmaniasis (ZCL), are endemic in various parts of Iran with a high incidence rate. The aim of this study was to evaluate the reappraisal of the diagnosis and epidemiology of CL in Iran, by different clinical, parasitological and molecular assays among patients suspected of CL referred to the Department of Parasitology, at the Pasteur Institute of Iran during 2006-2009. Two hundred samples from patients with ulcerative skin lesions were collected, clinical analyses were applied, data questionnaire was completed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Parasitological analysis; Molecular biology; Leishmaniasis; Cutaneous; Iran; Epidemiology.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702011000100004
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Analyzing the Impact of Structural Change in Iranian Agricultural Credit System AgEcon
Yazdani, Saeed.
Replacement of the traditional interest based credit system with an Islamic credit system was one of the fundamental changes in Iran since 1979. The Islamic credit system, offers the prospect of risk sharing between the borrower and the lender. Small farmers are likely to be risk averse and they are reluctant to go heavily into debt in order to finance investments in new technology and capital intensive methods of production which they perceive to be risky. Farmer's decision making behaviour with regard to risk under the Islamic and interest based credit systems are explored with the aid of a simple conceptual model. Analysis of attitudinal data suggests that the majority of small farmers prefer credit provided under the Islamic credit system. Farmers'...
Tipo: Journal Article Palavras-chave: Islamic credit System; Iran; Agriculture; Risk sharing; Agricultural Finance; Risk and Uncertainty.
Ano: 2006 URL: http://purl.umn.edu/44109
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Application of Neural Networks and multiple regression models in greenhouse climate estimation CIGR Journal
Taki, Morteza; Ajabshirchi, Yahya; Ranjbar, Seyed Faramarz; Matloobi, Mansour.
Artificial Neural Networks (ANNs) are biologically inspired computer programs designed to simulate the way in which the human brain processes information. After a comprehensive literature survey on the application of ANNs in greenhouses, this work describes the results of using ANNs to predict the roof temperature, inside air humidity, soil temperature and inside soil humidity (Tri, RHia, Tis, RHis), in a semi-solar greenhouse according to use some inside and outside parameters in the institute of renewable energy in East Azerbaijan province, Iran. For this purpose, a semi-solar greenhouse was designed and constructed for the first time in Iran. The model database selected beside on the main and important factors influence the four above variables inside...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Artificial Neural Networks; Semi-solar greenhouse; Multiple linear regression model; Iran.
Ano: 2016 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3672
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Asymmetric Price Transmission and Non-linear Adjustment in the Iranian Mutton Market AgEcon
Falsafian, Azadeh; Yazdani, Saeed; Moghaddasi, Reza.
This paper analyses the asymmetric price transmission and non-linear adjustment at the farm and retail levels in the Iran’s mutton market. We applied a multivariate threshold error correction mechanism for monthly price data. We tested the non-linear adjustment using sup-LR, sup-LM and sup-Wald tests. The results confirm the presence of non-linear cointegration relationship between the retail and farm prices. In short-run, the price transmission behavior reveals that reactions of both the retail and farm prices to positive and negative deviations from the long-run price spread are asymmetric. More specially, the retailers show more strong responses to the both positive and negative shocks imposed to the farmers.
Tipo: Conference Paper or Presentation Palavras-chave: Threshold Cointegration; Non-linearity; Mutton; Price; Iran; Livestock Production/Industries.
Ano: 2011 URL: http://purl.umn.edu/114363
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Biochemical association between essential trace elements and susceptibility to Leishmania major in BALB/c and C57BL/6 mice BJID
Amini,Marzyeh; Nahrevanian,Hossein; Khatami,Shohreh; Farahmand,Mahin; Mirkhani,Fatemeh; Javadian,Seifoddin.
Several enzymes that contribute to immune system responses require zinc and copper as trace elements for their activity. We examined zinc and copper levels in two susceptible Balb/c mouse lines and resistant C57bl/6 mice infected with Leishmania major MRHO/IR/75/ER, a prevalent strain that causes cutaneous leishmaniasis in Iran. Serum Zn and Cu were determined by flame atomic absorption spectrophotometry. Higher Cu levels were found in infected C57bl/6 mice and higher Zn levels were found in infected Balb/c mice. Also, Cu/Zn ratios were increased in both the Balb/c and the C57bl/6 mice. We conclude that concentrations of essential trace elements vary during cutaneous leishmaniasis infection and that this variation is associated with...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Balb/c; C57bl/6; CL; Iran; Leishmania major; Treatment; Cu; Zn.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702009000200002
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Characterization of Escherichia coli virulence genes, pathotypes and antibiotic resistance properties in diarrheic calves in Iran Biol. Res.
Shahrani,Masoud; Dehkordi,Farhad Safarpoor; Momtaz,Hassan.
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Tipo: Journal article Palavras-chave: Antibiotic resistance profile; Diarrheic calves; Escherichia coli; Iran; Serogroups; Virulence genes.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100028
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Characterization of Occipital Condyle and Comparison of its Dimensions with Head and Foramen Magnum Circumferences in Dry Skulls of Iran International Journal of Morphology
Bayat,Parvindokht; Bagheri,Mahdie; Ghanbari,Ali; Raoofi,Amir.
The occipital condyle (OC) is an important area in craniovertebral surgery, but its anatomical features and the procedures concerning the OC have not been studied in detail yet. The aim of this study was to revisit the anatomy of the occipital condyle region and assess variations of the surrounding structures. Observations, on fifty dry skulls (dried specimens, 100 sides) and determined of condyle measurements. The mean length, width and height of occipital condyle were found to be 19.43±3.27 (right), 19.28±3.57 (left), 9.21±1.97 (right) 9.40±1.87 (left), 7.21±1.9 (right) and 7.33±2.74 mm (left), respectively. There were significant differences between right and left occipital condyles. The mean anterior intercondylar distance and posterior intercondylar...
Tipo: Journal article Palavras-chave: Skull base; Foramen magnum; Occipital bone; Iran.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000200011
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Clinical and biochemical manifestation produced by scorpion (Hemiscorpius lepturus) venom in experimental animals J. Venom. Anim. Toxins incl. Trop. Dis.
Mirakabbadi A.,Zare; Zolfagharian,H.; Hedayat,A.; Jalali,A..
Several studies have been published about the clinical and biochemical manifestations produced by the venom of scorpions of the Buthidae family, but very few reports have indicated the manifestations induced by the venom of the Scorpionidae family. Hemiscorpius lepturus is an important scorpion species present in the south and southwestern part of Iran, causing morbidity and mortality in children and adults. For the present study, H. lepturus venom was extracted by electric shock and subcutaneously injected (6.3mg/kg) into a group of six rabbits. Blood collection was carried out before and three hours after venom injection for determination of osmotic fragility and levels of blood sugar, alanine aminotransferase (ALT), aspartate aminotransferase (AST),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hemiscorpius lepturus; Scorpions; Osmotic fragility; Iran; Biochemical changes.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992007000400007
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Commodity Exchange and Institutional Changes: Case of Iranian Agricultural Commodity Exchange AgEcon
Soltanpour, Yazdan.
In this study, an attempt is to figure out the institutional changes that initiate the agricultural commodity exchange (ACE). To assess the affecting factors, new institutional economics approach has been chosen. The framework consisting of four levels of social analysis introduced by Oliver E. Williamson is used to analyze the social environment, institutional rules, institutional arrangements and finally the agency level economics (Neo-classical economics). Regarding this framework, the institutional changes that have initiated the Iranian ACE is analyzed and its constraints to further improvement are discussed.
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural Commodity Exchange; Institutional economics; Iran; Agricultural and Food Policy; Institutional and Behavioral Economics; Political Economy; G1; O3; L1.
Ano: 2010 URL: http://purl.umn.edu/90825
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Corpus Callosum Size, is There a Sexual Difference? International Journal of Morphology
Yasin,Mohammad; Farahani,Reza Mastery.
Physical anthropometry is a subdivision of human anatomy science, which has uses in medical industries. A lot of studies showed that genetic, racial, and socioeconomic factors and educational background play rule in anthropometry. We aim this study to determine the presence of differences between gender and corpus callosum size. MRIs were collected from Ardebil and Kermanshah states done in 2013, the participants were informed about this study. They were selected based on age more than 20-years old, absence of demyelization and degenerative diseases, clean history of for neurosurgery, and previous cerebrovascular accidents. MRIs were analyzed by PmsDview program in the midsagittal section by using 9 landmarks, and the data was analyzed by SPSS 19.0. The...
Tipo: Journal article Palavras-chave: Corpus callosum; Sex-related size; Sex-related; Anthropometry; Iran; MRI; Sexual dimorphism.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000100016
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Correlation of Skull Size and Brain Volume, with Age, Weight, Height and Body Mass Index of Arak Medical Sciences Students International Journal of Morphology
Bayat,Parvin-Dokht; Ghanbari,Ali; Sohouli,Pardis; Amiri,Sara; Sari-Aslani,Payam.
Anthropometric indices that are indicators of nutrition status in children and adults can be affected by racial and geographic factors. The aim of present study was to investigate the relation of skull size and brain volume of Arak University of Medical Sciences students with their age, weight, height and body mass index. The present study was a cross-sectional study on 18-26 years old students of Arak University of Medical Sciences (150 female and 136 male) in 2009-2010 educational year. Sampling methods were probability and multi-stage methods which were performed using students' educational file and interviewing the subjects. Questions regarding anthropometric data (height, weight, age, body mass index and skull index) were included in the personal...
Tipo: Journal article Palavras-chave: Anthropometry; Body Mass Index (BMI); Skull Index; Iran.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100028
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Dasypoda (Megadasypoda) intermedia spec. nov. (Hymenoptera: Apoidea: Melittidae), a new species from Iran Naturalis
Michez, D..
Dasypoda intermedia spec. nov. from Iran is described. Its description fills a gap of our knowledge of the East Mediterranean fauna of the genus Dasypoda. The West Mediterranean Dasypoda species are well known but the eastern species lack convincing records. Moreover, D. intermedia spec. nov. is a very interesting species from a phylogenetic point of view. It shares some characters common to subgenera Dasypoda s. str. and Megadasypoda Michez, 2004, which provide further evidence for the close relationship of both subgenera.
Tipo: Article / Letter to the editor Palavras-chave: Hymenoptera; Melittidae; Dasypoda; New species; Iran; 42.75.
Ano: 2005 URL: http://www.repository.naturalis.nl/record/210736
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Description of Gammarus balutchi spec. nov. (Amphipoda: Gammaridae) from Iran, based on light and electron microscopy Naturalis
Khalaji-Pirbalouty, V.; Sari, A..
In the present study, a new endemic gammarid amphipod, Gammarus balutchi spec. nov. is described from Charmahal-Va-Bakhteyari province, Iran. A description is given using light and electron microscopes. Comparison of SEM micrographs shows that pore density and patterns are reliable diagnostic characters at the species level based on ultrastructural study of the head.
Tipo: Article / Letter to the editor Palavras-chave: Iran; New species; Endemic; SEM; Gammarus balutchi; 42.72.
Ano: 2006 URL: http://www.repository.naturalis.nl/record/209639
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Dorfak: an aromatic, high-yielding, short-duration variety with good cooking quality for the irrigated lowlands of Iran International Rice Research Institute
Nahvi, M.; Allahgholipour, M.; Ali, A. J.; Salehi, M. S. M.; Saroush, H. R.; Dorosti, H.; Erfani, A.; Padasht, F.; Alinia, F..
p.24-25
Palavras-chave: Varieties; Yields; Quality; Agronomic characteristics; Cooking quality; Iran.
Ano: 2004 URL: http://hdl.handle.net/123456789/979
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Economic Efficiency of Smallholder Intensive Dairy Farms in Iran: Adjusted for Market Distortion AgEcon
Bakhshoodeh, Mohamad; Shahnoushi, Naser.
The dairy farmers in Iran are faced with milk price distortion due to the market imperfection. To measure an unbiased farm-specific efficiency, prices should be adjusted in an imperfect market. To examine this issue, a shadow-price profit frontier was applied to a sample of 860 Iranian small intensive dairy farms surveyed in 2005-06 in order to calculate profit efficiency of individual dairy farmers. This adjusted measure was then compared with that of unadjusted measure that assumes undistorted market. A multiple general linear model (GLM) technique was applied to the data to examine the multiple effects of pure-bred animals, and the used farm capacity on profit efficiency indices. The mean value of adjusted profit efficiency was 0.40, significantly...
Tipo: Conference Paper or Presentation Palavras-chave: Profit efficiency; Dairy farms; Iran; Agribusiness; Livestock Production/Industries; Research Methods/ Statistical Methods; C31; N55; Q12.
Ano: 2009 URL: http://purl.umn.edu/52996
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Effectiveness of Government Protective Policies on Rice Production in Iran AgEcon
Najafi, Bahaeddin; Bakhshoodeh, Mohamad.
To evaluate the government intervention effects on growth of rice production in Iran, the nominal protective rate was calculated and a Nerlove supply model was applied to a time series of 1983-1998. The results showed that in the majority of these years, producers has not been supported and therefore, redirecting the rice market is recommended. In order to get more efficient approach than the government intervention, diminishing the share of the government in the market and strengthening the private sector may be listed on the top of a list that could be regarded as a plan for making rice production profitable.
Tipo: Conference Paper or Presentation Palavras-chave: Nominal protection rate; Rice; Iran; Agricultural and Food Policy.
Ano: 2002 URL: http://purl.umn.edu/24922
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