Inequalities for the Polar Derivative of a Polynomial

In this paper we obtain new results concerning maximum modulus of the polar derivative of a polynomial with restricted zeros. Our results generalize and refine upon the results of Aziz and Shah [An integral mean estimate for polynomial, Indian J. Pure Appl. Math. 28 (1997) 1413--1419] and Gardner, Govil and Weems [Some result concerning rate of growth of polynomials, East J. Apporox. 10(2004) 301--312]

The diagnostic value of the resistivity index of the common carotid arteries in severe internal carotid artery stenosis

Duplex ultrasound is currently used both for screening and for preoperative assessment of the carotid arteries and has completely replaced carotid angiography for the latter purpose in many institutions. The study aimed to identify resistivity index abnormalities in the common carotid arteries in patients with occluded or severely stenosed internal carotid arteries. Sixteen patients with severe internal carotid artery stenosis or occlusion over a twelve-month period were studied by duplex ultrasonography. The resistivity index in the common carotid artery was 0.85 &#177; 0.03 on the stenotic side compared to 0.74 &#177; 0.04 on the opposite side (p < 0.05). There was no side difference regarding flow velocity. In patients with occluded or severely stenosed internal carotid arteries compensatory vasodilation occurs in cerebral vessels on the same side, and this is also significant, resulting in a decrease in the resistivity index in the common carotid artery of the opposite side

Investigation of heavy metals in edible mushrooms consumed in Shahrekord

زمینه و هدف: آلودگی به فلزات سنگین یکی از نگرانی های مهم بهداشت مواد غذایی است. وجود عناصر سمی در بستر قارچ ها ممکن است منجر به جذب آن ها شود که در این صورت مصرف قارچ با اشکال مواجه خواهد شد. این تحقیق با هدف تعیین غلظت عناصر سنگین منگنز، کروم، آهن، سرب، روی و مس در قارچ خوراکی موجود در شهرکرد صورت گرفته است. روش بررسی: این مطالعه به روش مقطعی- توصیفی انجام گرفت. 6 نمونه از قارچ های خوراکی پرورشی موجود در بازار شهرکرد و 2 نمونه از قارچ خوراکی وحشی انتخاب گردید. نمونه برداری به روش سرشماری با 3 بار تکرار به فاصله ی زمانی یک ماهه در فصل بهار انجام شد. از هر نوع قارچ 3 نمونه و در مجموع تعداد 24 نمونه گرفته شد. نمونه ها با استفاده از روش هضم اسیدی هضم شدند، سپس توسط دستگاه اسپکترو متری جذب اتمی غلظت عناصر تعیین گردید. یافته ها: میانگین مقادیر سنجش شده روی (94/14&plusmn;29/61)، (11/29&plusmn;48/58)، آهن (69/8&plusmn;29/26)، (93/11&plusmn;30/28)، سرب (56/0&plusmn;05/2)، (35/0&plusmn;07/2)، کروم (41/0&plusmn;46/1)، (91/0&plusmn;1/1)، مس (68/5&plusmn;99/22)، (67/6&plusmn;83/25) و منگنز (72/0&plusmn;8/3)، (99/0&plusmn;25/6) میلی گرم در کیلوگرم به ترتیب در قارچ های پرورشی و وحشی به دست آمد. یافته های این تحقیق نشان می دهد که میانگین غلظت روی در هر 2 نوع قارچ (وحشی- پرورشی) در حد مجاز استاندارد (CODEX/FAO/WHO) کروم، سرب، آهن بیش تر از حد مجاز استاندارد و منگنز، مس کم تر از حد مجاز استاندارد به دست آمد. نتیجه گیری: با توجه به اینکه برخی نمونه ها حاوی فلز سنگین کروم، سرب، آهن با مقادیر بالاتر از حد مجاز می باشند و با توجه به مصرف روز افزون قارچ های خوراکی پرورشی در ایران دقت بیش تری در مورد شرایط و محیط پرورشی قارچ ها لازم می باشد

S100B Protein as a Post-traumatic Biomarker for Prediction of Brain Death in Association With Patient Outcomes

Background: S100B is a calcium-binding protein, belonging to the S100 family proteins which are characterized by their high solubility and, currently, comprises 21 members which are expressed in a cell-specific manner. If we can predict the possibility of definite brain death after brain injury, we will rescue some organs of body to transplant proposes. Objectives: In this regard our study focused on the S100B protein value in predicting brain death after head trauma. In this study, the use of serum level of protein S100, 24 hours after trauma has been considered as a reliable index for predicting brain death. Patients and Methods: 72 patients (50 male and 22 female) aged 5 - 80 years old (median 40 ± 17.72 years) with severe head traumas (GCS ≤ 8) were recruited in this cross-sectional study. Glasgow Coma Scale (GCS) and computed tomography (CT) scan findings were recorded for all patients, and then a single 5mL blood sample was obtained from each patient on admission, after 48 hours and a week later or after brain death to determine the level of S100B protein. Results: Primary and the last GCS of patients had a predictive value in determining brain death (P < 0.0005), also there was a significant correlation between GCS and level of S100B protein. There was a significant correlation between CT scan findings and S100B protein only after 48 hours of trauma. Conclusions: Changes in S100B protein, especially the levels of this dimer 48 hours after trauma can be used as marker to predict brain death. Alongside other known prognostic factors such as age, GCS and diameters of the pupils, however, this factor individually can not conclusive predict the patient's clinical course and incidence of brain death. However, it is suitable to use GCS, CT scan, clinical symptoms and biomarkers together for a perfect prediction of brain death

The Frequency of Opium Addiction and Cofactors in Diabetic Patients Referred to Karaj Dr. Shariati Hospital in 1389-90

Background: Diabetes mellitus is one of the most common and complicate endocrine disease in Iran. Also, opium addiction is one of the most prevalent social problems in Iran. The goal of this study was to determine the frequency of opium addiction and diabetic vascular complications in diabetic patients. Methods: This study was a cross-sectional study conducted in two years (1389- 90) in Karaj Dr. Shariati hospital. Sampling method was non-probability convenience sampling. Sample size was 384 patients. Data collection forms filled with patient’s files evidences. Statistical analysis of data was performed with SPSS. Results: 384 diabetic patients with age ranging from 13 to 91 years old (mean age 59.1 years) were evaluated. 40 patients (10.4%) were opium addict and 75 patients (19.5%) were smoker. After elimination of smoking effect, frequency of retinopathy, neuropathy and diabetic foot ulcer were significantly more in opium addicts than other diabetic patients. Conclusion: Opium abuse in diabetic patients can accelerates and progresses some of diabetic vascular complications

Marked increase in the incidence rate of esophageal adenocarcinoma in a high-risk area for esophageal cancer

BACKGROUND: Esophageal cancer (EC) is the eighth common cancer worldwide. Esophageal squamous cell carcinoma (ESCC) and adenocarcinoma (EAD) are the most common histologic types of EC. Many recent reports showed an increasing trend in EAD and a decreasing trend in ESCC in many Western countries. Golestan Province in northeastern Iran has been known as a high-risk area for EC. The aim of this study was to describe the time trend of EAD in this area between 2000-2009. METHODS: Data on cancer cases were obtained from Golestan Population-based Cancer Registry. Analysis was done using Joinpoint software. To examine the incidence trends, the annual percent change was calculated. The possibilities of anatomic and histologic misclassification were considered by assessing the trend of ESCC and gastric adenocarcinoma. RESULTS: A total number of 1186 histologically-confirmed EC cases were recruited. The incidence rate of EAD showed a significant increasing trend. There was no significant trend in the incidence of ESCC during the study period. A significant increase in the incidence rate of gastric adenocarcinoma was observed during the period of 2000-2005, followed by a plateau during the period of 2005-2009. CONCLUSIONS: We found a significant increasing trend in the incidence rate of EAD. We find no evidence to support an alternative explanation including anatomic and histologic misclassification. So, the observed rise in the incidence of EAD seems to be real. Therefore, designing and implementation of control programs, including control of preventable risk factors of EAD, should be considered in this high- risk area

The Rules of Forensic Medicine Examination in Diagnosis of Electrical injury in Childhood

Background: History taking is a duty that must get out in different situation as child's parents or in adults by themselves, to able provide the best helps in minimum time. Certainly, the information come out from history have significant effects on management plans. Case Presentation: A 16 months baby that transfers to ER department with complete cardiorespiratory arrest and after response to resuscitation the medical management was done for him. As history taking, he found unconsciousness near dress pan with wet dressing in bathroom. In physical exam the little impact traumatism on his/her head and face was detected. In blood and urine samples, there were not significant findings for toxicological screening. The physician requested for forensic specialist consultation for ruling out any child abuse doubt. The future examination was done by forensic team and they found the hyperkeratotic nodules on palmar surface of first phalange of right index finger due to electrocution. Conclusion: The history taking and following physical exam have greatest significant moment and the detailed and exact physical examination include whole parts of body, especially in children who couldn't present and complain about their problems completely

Explode Metacarpal Bone by Gunshot: A Case Report

Background: The incidence of firearm related non-fatal and fatal accidents has been increased worldwide. Most of the unintentional or intentional nonfatal gunshot injuries involve an extremity.Case Report: A 33-year-old man was admitted to emergency department with a complaint of injury related to 5th metacarpal area of right hand. The patient reported that he is a police officer who suffered gunshot injury during crashes with smugglers in himself right hand. At arriving time into hospital, hand was neurologically intact and no vascular injury was noted. There was a distractive entrance wound in the 5th metacarpal hypothenar palmar area and a distractive exit wound on the dorsal side. The wound was irrigated and debrided. All lose bone fragments were removed. The lose area covered by distant flap of skin from the abdomen. All of the wounds were healed on postoperative 15th day.Conclusion: This report is an attempt to present the problem of firearm injury and appeal to a wide range of disciplines working to expand their knowledge and redirect new energy to address the urgent problem of firearm injury