Comparison of astigmatism after cataract surgery with separate & running sutures

عمل جراحی آب مراورید یکی از رایج ترین اعمال جراحی است و در تمام دنیا از جمله کشور ایران شایع ترین تکنیک جراحی روش خارج کپسولی (Extra Capsular Cataract Extraction= ECCE) است که نیاز به برش قرنیه در ناحیه لیمیوس و در آخر عمل بخیه دارد. یکی از فاکتورهای موثر در بهبود دید بیمار بعد از جراحی در این روش کاستن از میزان آستیگماتیسم ناشی از بخیه ها می باشد. چون بخیه ها به دو روش ممتد (Running (R)) و جدا از هم (Separate (s)) زده می شوند بر آن شدیم که مقایسه ای بین آستیگماتیسم حاصله از این دو روش انجام دهیم. در تحقیق فوق 157 بیمار که تحت جراحی آب مراورید به روش ECCE قرار گرفتند و بخیه آنها به دو روش R و S زده شده بود انتخاب و میزان آستیگماتیسم ایجاد شده روز بعد از عمل، هفته اول، دوم، چهارم، ششم و سه ماه بعد با روش کراتومتری تعیین و با آستیگماتیسم موجود قبل از عمل مقایسه گردیدند. بخیه زدن ها در 104 مورد (3/66) به روش ممتد و در 53 مورد (7/33) به صورت جدا از هم بودند. متوسط آستیگماتیسم روز بعد از عمل 19/5 دیوپتر (در گروه R 7/4 و در گروه S 7/5 دیوپتر)، سه ماه پس از عمل 58/1 دیوپتر (در گروه R 12/1 و در گروه s 05/2دیوپتر) بود. از هفته چهارم تفاوت معنی دار آماری بین دو روش R، S مشاهده شد (05/0

Cardiac Resynchronization Therapy With or Without Defibrillation

No abstract available

Optimization of transport system in cement industry: A Case study in Omid Siman Darab Cement Manufacturing Company

The aim of this research is to study transport system in Darab Siman Omid (cement) manufacturing Company where system optimization is carried out at 3 phases: we have implemented 3 phases of this point for December 2012 through August 2013 .Therefore, 3 phases are explained in the following: At the first phase, with respect to customers’ demand and by application of linear planning, quantity of the needed trucks for any route is identified in certain period of time. At the second phase, it is determined by goal programming model and the number of the existing trucks i.e., how many trucks should be allocated to any route. Moreover, at the second phase, quantity of deficiency or surplus of trucks will be obtained for each route within several periods as well and finally at the third phase, the extra trucks, which have been focused on by this method of allocation in the main base, will be allotted to the routes with respect to the shortages of these facilities obtained from the second phase of this problem. Currently, we compare the suggested system with the existing system. The acquired result from this part signifies that the given company should reduce the number of trucks from this system in order not to be compelled to incur their extra costs or it should meet more demands with this quantity of trucks at its disposal

Optimization of transport system in cement industry: A Case study in Omid Siman Darab Cement Manufacturing Company

The aim of this research is to study transport system in Darab Siman Omid (cement) manufacturing Company where system optimization is carried out at 3 phases: we have implemented 3 phases of this point for December 2012 through August 2013 .Therefore, 3 phases are explained in the following: At the first phase, with respect to customers’ demand and by application of linear planning, quantity of the needed trucks for any route is identified in certain period of time. At the second phase, it is determined by goal programming model and the number of the existing trucks i.e., how many trucks should be allocated to any route. Moreover, at the second phase, quantity of deficiency or surplus of trucks will be obtained for each route within several periods as well and finally at the third phase, the extra trucks, which have been focused on by this method of allocation in the main base, will be allotted to the routes with respect to the shortages of these facilities obtained from the second phase of this problem. Currently, we compare the suggested system with the existing system. The acquired result from this part signifies that the given company should reduce the number of trucks from this system in order not to be compelled to incur their extra costs or it should meet more demands with this quantity of trucks at its disposal

Optimization of transport system in cement industry: A Case study in Omid Siman Darab Cement Manufacturing Company

The aim of this research is to study transport system in Darab Siman Omid (cement) manufacturing Company where system optimization is carried out at 3 phases: we have implemented 3 phases of this point for December 2012 through August 2013 .Therefore, 3 phases are explained in the following: At the first phase, with respect to customers’ demand and by application of linear planning, quantity of the needed trucks for any route is identified in certain period of time. At the second phase, it is determined by goal programming model and the number of the existing trucks i.e., how many trucks should be allocated to any route. Moreover, at the second phase, quantity of deficiency or surplus of trucks will be obtained for each route within several periods as well and finally at the third phase, the extra trucks, which have been focused on by this method of allocation in the main base, will be allotted to the routes with respect to the shortages of these facilities obtained from the second phase of this problem. Currently, we compare the suggested system with the existing system. The acquired result from this part signifies that the given company should reduce the number of trucks from this system in order not to be compelled to incur their extra costs or it should meet more demands with this quantity of trucks at its disposal

Role of imaging modalities in evaluation of stroke; towards molecular imaging probes

MRI scanners show a spatial resolution of 250 μm in-plane (small lenticel empirical devices permit for 50 μm isotropic voxels for in vivo evaluation) infinite profundity infiltration along with significant good soft tissue contrast. Extracting any new epitomizing technology to the imaging of children has a number of safety interests that must be aimed. However the lack of ionizing radiation makes MRI particularly suitable for a stroke patient. These treatments must be tailored to the individual biochemical set-up or disease stage of each respective patient with the support of diagnostic data. Equipped with these patient-specific data, a therapy regime is selected, taking into account the different molecular defects for each disease as well as the particular clinical history and condition of a patient. Neuroradiological tools such as CT or MRI have become an indispensable part of the examination and work-up of patients with acute cerebrovascular insults

The effectiveness of fasting on the intraocular pressure in individuals suffering from open –angle glaucoma

زمینه و هدف: فشار داخل چشم یکی از ریسک فاکتورهای قابل درمان در گلوکوم است و کانون اصلی درمان را تشکیل می دهد. تغییر در میزان فشار داخل چشمی بویژه در افراد مبتلا به گلوکوم در اثر روزه داری از جمله سوالاتی است که هنوز پاسخ قاطعی به آن داده نشده است. این مطالعه با هدف بررسی تاثیر روزه داری در ماه مبارک رمضان بر فشار داخل چشمی در افراد مبتلا به گلوکوم زاویه باز انجام شد. روش بررسی: این مطالعه به صورت کوهورت خود شاهدی در طی ماه رمضان 1388 بر روی بیماران داوطلب بالای 45 سال مبتلا به گلوکوم زاویه باز انجام شد. فشار داخل چشم 50 چشم از بیماران که حداقل 25 روز از ماه مبارک را روزه گرفته بودند درچهار نوبت قبل از ماه رمضان، روز پنجم، پانزدهم و بیست و پنجم ماه مبارک ثبت شد. بیماران حداقل دو هفته قبل از ماه رمضان و در طول دوره مطالعه داروهای خود را به صورت معمول مصرف نمودند. اطلاعات با استفاده از آزمون آماری آنالیز واریانس مشاهدات تکراری مورد تجزیه و تحلیل قرار گرفت. یافته ها: میانگین سنی بیماران 31/10±16/65 سال و 65 مرد بودند. فشار چشم بیماران نسبت به قبل از ماه رمضان روند کاهش داشت و در روز بیست و پنجم نسبت به قبل از ماه رمضان (37/0±08/16 میلی متر جیوه) معنی دار بود (001/0

Formulation and evaluation of orally disintegrating tablet of Rizatriptan using natural superdisintegrant

Introduction: Rizatriptan benzoate is a potent and selective 5-HT1B/1D receptor agonist and is effective for the treatment of acute migraine. Difficulty in swallowing is common among all age groups, especially elderly and pediatrics. Orally disintegrating tablets may constitute an innovative dosage form that overcome the problem of swallowing and provides a quick onset of action. This study was aimed to formulate and evaluate an Orally Disintegrating Tablet (ODT) containing Rizatriptan while using semi-synthetic and natural superdisintegrants. Methods: Orodispersible tablets were prepared by direct compression using natural superdisntegrant (Plantago ovata mucilage) and semi-synthetic superdisntegrant (crospovidone). The prepared tablets were evaluated for hardness, friability, thickness, drug content uniformity, water absorption and wetting time. A 32 factorial design was used to investigate the effect of independent variables (amount of crospovidone and Plantago ovata mucilage) on dependent variables disintegration time, wetting time and Q5 (cumulative amount of drug release after 5 minutes). A counter plot was also presented to graphically represent the effect of independent variable on the disintegration time, wetting time and Q5. The check point batch was also prepared to prove the validity of the evolved mathematical model. The systematic formulation approach helped in understanding the effect of formulation processing variable. Results: According to the results of optimized batches, the best concentration of superdisintegrant were as follows: 9.4 mg Psyllium mucilage and 8.32 mg crospovidone gave rapid disintegration in 35sec and showed 99% drug release within 5 minutes. Conclusion: Plantago ovata mucilage, a natural superdisintegrant, gives a rapid disintegration and high release when used with synthetic superdisntegrant in formulation of orally disintegrating tablet of Rizatriptan.</p

Water use efficiency, morpho-physiological and biochemical reactions of some bedding plants to drought stress

The purpose of this experiment is to compare the growth and water consumption efficiency of five garden plants (marigold (Tagetes erecta ‘Red Brocade’), moss-rose (Portulaca grandiflora ‘Sun Rose’), dahlia (Dahlia sp. ‘Double Opra’), gazania (Gazania splendens ‘New Day’), and Indian blanket (Gaillardia pulchella. ‘Sun Dance’)) during the warmer seasons of the year under various levels of drought stress based on field capacity (FC; 25, 50, 75, and 100 %). The interaction effect of plant × drought stress (FC) on the fresh and dry mass of aerial and underground organs was significant. Decreased water availability resulted in a drop in growth parameters (leaf fresh and dry mass and leaf area). In compared to the growth of aerial organs, root biomass increased in response to drought stress. Marigold, Indian blanket, and dahlia plants had the highest root-to-shoot ratio in extreme stress, i.e., FC 25 %. The plant × drought stress interaction significantly influenced flower number, whereas flower diameter was influenced by the main effect of plant and drought stress (not their interaction). The FC 100 % and FC 25 % treatments had the highest and the lowest accumulations of proline and soluble sugars, respectively. Moss-rose, gazania, and marigold ornamental plants had the highest water use efficiency at 75 %, followed by Dahlia at 50 % and moss-rose at 25 %