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Search Results: 1 - 10 of 401377 matches for " M. Ghoorchi "
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Primary analysis for enhancing the iron oxide and alteration minerals, using ETM+ data: a case study of Kuh-e-Zar gold deposit, NE Iran
S. Saadat,M. Ghoorchi
Iranian Journal of Earth Sciences , 2009,
Abstract: Different types of iron oxides deposits have been identified along the Khaf – Dorouneh volcanic and plutonic belt in north east of Iran. Kuh-e-Zar is one of these ore deposits known as Fe- oxide gold deposit. The main purpose of this paper is to detect and discriminate the iron oxide minerals in this area based on the ETM+ data. Data processing has been done by ENVI (Environment for Visualizing Images) software. Color Composites, Band Ratios, Principal Components (PC) analysis were used to delineate the associated zones of hydrothermal alteration and iron oxide minerals. Based on both field observations and the results of this satellite data processing, the area covered by secondary iron oxide (hematite, goethite and limonite mainly in soil) was enhanced very good, but the primary iron oxides (specularite) which are very fine grain and have a linear structure (mainly in mineralized veins) are not very clear in detail in these images.
Degradation of Dry Matter and Fiber of Five Feeds by Rumen Anaerobic Fungi of Sheep
T. Ghoorchi,S. Rahimi,M. Rezaeian,G. R. Ghorbani
Journal of Science and Technology of Agriculture and Natural Resources , 2003,
Abstract: An experiment was carried out to estimate the potential activity of rumen anaerobic fungi in the degradation of dry matter and fiber of feeds. Samples of wheat bran, bagasse, cotton seed, alfalfa and corn silage were used as the substrates to culture rumen fungi which were isolated from a fistulated Shal sheep. Loss percentages of dry matter (DML), neutral detergent fiber (NDF), acid detergent fiber (ADF), acid detergent (ADL), cellulose, and hemicellulose of samples were measured after 0, 3, 6 and 9 days of incubation. Dry matter and NDF loss of substrates varied from 10.6 % to 29.4% and 11.7% to 48.7% after 9 days of fungi growth. The highest and lowest DML and NDF were related to alfalfa and bagasses, respectively. The highest values for the ADF loss (39%), hemicellulose loss (65.6%) and cellulose loss (55.6%) were measured from alfalfa. The results indicated that rumen anaerobic fungi have the ability of degrading dry matter and fiber from different types of feed.
Evaluation by Chemical and in vitro Gas Production Techniques of Foxtail Millet Grown in Northern Iran
Noutmohammad Torbatinejad,Serollah Galeshi,Taghi Ghoorchi
Journal of Animal and Veterinary Advances , 2012,
Abstract: An experiment was conducted at the Agricultural Research Station of Eraghi Mahalleh, Gorgan, in Northern Iran. The aim of the experiment was to measure the nutritional value of foxtail millet forage grown in Northern Iran with different sowing dates and at different densities. Foxtail millet (Setaria italica L.) was cultivated under different conditions of sowing date and plant density, using a factorial arrangement in a randomized completely design with 6 replications. The sowing dates as as first factor were July 1, 16 or 31, the plant densities as a second factor were 30, 45 or 60 plants m-2. The results showed that the sowing date and plant density had a significant effect on the content of NDF and ADF (p<0.05). When the various treatments were compared, the forage produced from millet grown with a sowing date of July 16 and a density of 30 plants m-2 contained the greatest amount of protein (119.3 g kg-1). The highest ash content (100 g kg-1) was obtained from plants grown with a sowing date of July 1 and a density of 45 plants m-2. The sowing date, the density and the interaction of these two factors did not have a significant effect on Ca and or P content of millet forage (p<0.05). The DMD of millet forage from different treatments varied between 418 and 589 g kg-1. Similarly, the Digestible Energy (DE) varied between 7.5 and 10.5 and the Metabolizable Energy (ME) between 6.0 and 8.7 MJ kg-1. The highest rate of rumen gas production was related to an incubation time of 12 h (46.8-58.8 mL/200 g DM). A sowing date of July 1 and a density of 60 plants m-2 are recommended to produce foxtail millet with optimal characteristics for animal nutrition in the climatic conditions of the Gorgan-Golestan province in Northern Iran. This is because these conditions led to the greatest production of dry matter and an optimal chemical composition (especially, with regard to the protein content).
The Effect of Delayed Ensiling and Application of Propionic Acid-Based Additives on the Nutritiive Value, Aerobic Stability and Degradability of Corn Silage
S. Arbabi,T. Ghoorchi,S. Hasani
Pakistan Journal of Biological Sciences , 2008,
Abstract: In order to study the effect of delayed ensiling and application of some organic acid-based additives on fermentation of corn silage, chopped whole plant corn mixed with 4 different additives that consists of propionic acid in addition to control treatment without any additive. The additives were: (1) propionic acid (2) propionic acid (85%) + formic acid (15%) (3) calcium propionate and (4) propionic acid (80%) + formic acid (15%) + ammonia (5%). Ten gram per kilogram dry matter of each additives were mixed with chopped corn forage in 2 different times (0, 24 h). Silages were assessed and evaluated for appearance; DM and pH. CP, NDF, ADF, TVFA, WSC, aerobic stability and DM degradation each of treatments were determined after 60 days. Silages that was exposed to air for 24 h, before ensiling had better appearance quality in Filg’s method and whole additives had good effect on appearance quality compared with control group. In the method of DM and pH evaluation, all silages contained buffered propionic acid-based additive, were good and very good. These silages had lower pH than control ones (p<0.05). There was a significant interaction was between silages for concentration of dry matter (p<0.05). NDF in the silages (with propionic acid (85%) + Formic acid (15%)) was lower than the other silages while the contents of CP and TVFA increased (p<0.05) with addition of the additives especially additive containing propionic acid (85%) + formic acid (15%) (p<0.05). WSC in untreated silages was more than the other silage samples (p<0.05). Buffered propionic acid–based additives caused increase in the aerobic stability in treated silages compared with untreated silages. DM degradation (in situ) in untreated silages that delayed ensiled was lower other silages. Application of additives containing propionic acid (80%) + formic acid (15%) + ammonia (5%) resulted in highest DM degradation among experimental additives. Generally, treatment with propionic acid-based additives prevented the decrease of DM degradation (in vitro).
Effects of Monensin and Increasing Crude Protein in Early Lactation on Performance of Dairy Cows
Behnam Ghorbani,Taghi Ghoorchi,Hamid Amanlou,Saeed Zerehdaran
Pakistan Journal of Biological Sciences , 2008,
Abstract: Twenty-four Holstein dairy cows were used to evaluate the singular and combined effects of different level of crude protein and monensin treatments during the early lactation on digestion and milk yield of dairy cows. The experiment was designed as completely randomized with a 3x2 factorial arrangement of treatments. The factors were three Concentrations of CP supplement (19.5, 21.4 and 23.4% of dry matter) and two levels of monensin (0 and 350 mg per cow per day). This experiment consist of three periods and each period was 3 week in length. Monensin did not affect DMI, milk yield, lactose and SNF but it reduced milk fat and protein percentage. Monensin premix significantly decreased rumen ammonia but rumen pH and microbial protein synthesis was not affected by monensin treatment. Although, Monensin treatment increased apparent digestibility of DM, NDF, ADF, CP, but they were not significantly. Increasing dietary CP, improved milk and protein production, but did not alter the other components of milk. Digestibility of NDF, ADF, CP were improved by increasing dietary CP. Increasing diet CP from 19.5 to 21.4% did not significantly increase ruminal ammonia, but increasing to 23.4% have significant effect on it. There was a linear relationship between level of crud protein in the diet and urine volume excretion. Microbial protein synthesis was affected by increasing CP level; on this way maximum protein synthesis was achieved in 21.4% CP.
Comparison of efficacy of intralesional injection of meglumine anti-moniate once-weekly with twice-weekly in the treatment of anthroponotic cutaneous leishmaniasis in Mashhad: a randomized clinical trial
Ali Khamesipour,Mohammad Hossein Ghoorchi,Alireza Khatami,Seyed Ebrahim Eskandari
Dermatology and Cosmetic , 2011,
Abstract: Background and Aim: Cutaneous leishmaniasis (CL) is endemic in Iran, where it is one of the most important health problems. Both anthroponotic CL (ACL) caused by L. tropica and zoonotic CL (ZCL) caused by L. major are reported. Antimoniate derivatives as the standard therapy for CL need multiple injections and are not easy to tolerate for the patients. This study was conducted in Mashhad to compare the efficacy of weekly versus twice a week intralesional injections of meglumine antimoniate (MA) in the treatment of ACL."n"nMethods: This randomised controlled trial was performed during 2006 to 2008 in Mashhad, Iran. Using computerized sequence of random numbers, participants were randomly allocated in the two arms of the study: one receiving weekly and the other receiving twice-a-week intralesional injections of MA. The lesion size, induration and healing rate were assessed, recorded and compared. Healing was defined as complete re-epithelialisation and disappearance of induration."n"nResults: A total of 252 suspected CL patients with 372 lesions were screened. 82 parasitologically proven cases with 121 lesions caused by L. tropica were included and 74 patients with 113 lesions completed the study. At 12th week after initiation of treatment, complete healing was observed in 38 out of 44 lesions (86.4%) in the group which received weekly intralesional MA injection. The median time-to-heal in this group was 36 days (95% confidence interval [CI]: 32.0-39.9). Complete healing was recorded in 60 out of 69 lesions (86.9%) in the group which received twice a week intralesional injections of MA with a median time-to-heal of 25 days (95% CI: 20.9-29.1). While no significant difference was observed between the two groups in terms of complete healing rate (P=0.999), time-to-heal was significantly different between the 2 groups (P=0.003)."n"nConclusion: It seems that the effectiveness of twice-weekly intralesional injections of MA is similar to once-weekly regimen while the former regimen causes more rapid healing of lesions.
Effects of Rumen Protected and Unprotected Choline on Energy-Related Biochemical Metabolites of Lactating Dairy Cows
A. Toghdory,T. Ghoorchi,A. Naserian,Y.J. Ahangari,S. Hassani
Journal of Animal and Veterinary Advances , 2012,
Abstract: Eight multiparous Holstein cows with an average milk production of 34.6±2.8 kg day-1 and body weight of 676±79 kg were used to evaluate the effect of rumen protected and unprotected choline on energy-related biochemical metabolites of lactating dairy cows. The experimental design was a balanced change over design with 4 treatments and 4 periods of 21 days. Experimental treatments were: No Choline (NC), Unprotected Choline (UC) fed at 50 g day-1, Rumen Protected Choline (RPC 25) fed at 25 g day-1 and Rumen Protected Choline (RPC 50) fed at 50 g day-1. Rumen protected choline was blended with 0.25 kg of ground corn and fed once per day as a top dress. Blood samples from coccygeal vessels were collected on last day of each period and analyzed for glucose, triglyceride, cholesterol, blood urea nitrogen, very low density lipoprotein, low density lipoprotein and high density lipoprotein. The result shows that blood metabolites such as glucose, triglyceride, cholesterol, blood urea nitrogen, very low density lipoprotein and low density lipoprotein not affected by treatments (p>0.05). Blood glucose concentration tendency increased by rumen protected and unprotected choline, but wasn t statistically significant. Unprotected choline decreased concentration of high density lipoprotein than control group (p<0.05). Rumen protected choline had no significant effect on high density lipoprotein levels. High density lipoprotein decreased by using unprotected choline, but other blood metabolites not changed by treatments.
Study of Duct Characteristics Deduced from Low Latitude Ground Observations of Day-Time Whistler at Jammu  [PDF]
M. Altaf, M. M. Ahmad
International Journal of Astronomy and Astrophysics (IJAA) , 2013, DOI: 10.4236/ijaa.2013.33032
Abstract:

Propagation characteristics of low latitude whistler duct characteristics have been investigated based on day-time measurements at Jammu. The morphogical characteristics of low latitude whistlers are discussed and compared with characteristics of middle and high latitude whistlers. The Max. electron density (Nm) at the height of the ionosphere obtained from whistler dispersion comes out to be higher than that of the background which is in accordance with the characteristics of whistler duct. The equivalent width is found to be close to the satellite observations and the characteristics of whistler duct in low latitude ionosphere are similar to those in middle and high latitude ionosphere. The width of ducts estimated from the diffuseness of the whistler track observed during magnetic storm is found to lie in the range of 50 - 200 Km.

Review Article: Immobilized Molecules Using Biomaterials and Nanobiotechnology  [PDF]
Magdy M. M. Elnashar
Journal of Biomaterials and Nanobiotechnology (JBNB) , 2010, DOI: 10.4236/jbnb.2010.11008
Abstract: Immobilized molecules using biomaterials and nanobiotechnology is a very interesting topic that touching almost all aspects of our life. It uses the sciences of biology, chemistry, physics, materials engineering and computer science to develop instruments and products that are at the cutting edge of some of today’s most promising scientific frontiers. In this review article, the author based on his experience in this arena has tried to focus on some of the supports for im-mobilization; the most important molecules to be immobilized such as DNA, cells, enzymes, metals, polysaccharides, etc and their applications in medicine, food, drug, water treatment, energy and even in aerospace. He specified a special section on what is new in the arena of supports and technologies used in enzyme immobilization and finally a recommendation by the author for future work with a special attention to up-to-date references.
Using of the generalized special relativity (GSR) in estimating the neutrino masses to explain the conversion of electron neutrinos  [PDF]
M. H. M. Hilo
Natural Science (NS) , 2011, DOI: 10.4236/ns.2011.34044
Abstract: In this work the Generalized Special Relativity (GSR) is utilized to estimate masses of some elementary particles such as, neutrinos. These results are found to be in conformity with experimental and theoretical data. The results obtained may explain some physical phenomena, such as, conversion of neutrinos from type to type when solar neutrino reaches the Earth.
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