A report about a rare case of tail gut cyst (TGC) in a 90-year-old man with sacrum ulceration

مقدمه: تیلگات کیست (Tailgut cyst=TGC) یک ضایعه کیستیک غیر شایع با منشا بقایای رودهPostnatal است که در فضای خلف رکتوم ایجاد می گردد. گزارش مورد: آقای 90 ساله اهل میناب با شکایت زخم در ناحیه ساکروم در مرکز آموزشی درمانی شهید صدوقی یزد پذیرش شد. بیمار در گرفتن شرح حال همکاری لازم را نداشت. بعد از انجام آزمایشات معمول، بیمار تحت عمل جراحی قرار گرفت و ناحیه مربوطه از نظر ترشحات تخلیه و ترمیم شد و طی عمل جراحی به توده ای در ناحیه ساکروم برخورد گردید، بعد از برش کامل و خارج کردن آن در بررسی آسیب شناسیTGC تشخیص داده شد. نتیجه گیری: با اینکه بروز بدخیمی در تیلگات کیست نادر است ولی باید در تشخیص افتراقی، تمام تومورهای خلف رکتوم به ویژه در زنان میانسال مورد توجه قرار گیرد

The comparison of the effects of both propranolol and transcutaneous electrical nerve stimulation in prevention of migraine headache

زمینه و هدف: سردرد میگرنی یک بیماری شایع با مبنای فامیلی می باشد و شیوع آن بر حسب جنس، سن و نژاد متفاوت است. درمان آن شامل درمان حمله حاد سردرد و درمان پیشگیری جهت جلوگیری از بروز حملات سردرد می باشد. انواع مختلف داروها از جمله بتابلوکرها که رایج ترین آنها پروپرانولول است در پیشگیری از حملات میگرن بکار رفته است. همچنین از درمان های غیر دارویی نظیر TENS (Transcutaneos Electerical Nerve Stimulation) در درمان حمله حاد سردردهای میگرنی و نیز درد های مزمن استفاده می شود. هدف از این بررسی، مقایسه اثر پروپرانولول و TENS در پیشگیری از حملات میگرنی بوده است. روش بررسی: در یک کارآزمایی بالینی تعداد 60 بیمار مبتلا به سردرد میگرنی که میگرن آنها بر اساس مقیاس IHS (International Headache Society) توسط متخصصین نورولوژی تأیید گردید و دارای اندیکاسیون درمان پیشگیری از حملات سردرد میگرنی بودند با روش غیر احتمالی انتخاب و بعد به صورت تصادفی در دو گروه 30 نفری تحت درمان با TENS به مدت ده جلسه به صورت روزانه یک جلسه 15 دقیقه ای و پرویرانولول به میزان 40 میلی گرم روزانه به مدت 6 ماه قرار گرفتند. نتایج از نظر شدت، مدت و تعداد حملات قبل از شروع درمان، بعد از 3 و 6 ماه جمع آوری و با استفاده از آزمون آماری مجذور کا تجزیه و تحلیل گردید. یافته ها: پس از 3 ماه درمان 90 درصد بیمارانی که تحت درمان با TENS قرار گرفتند هیچگونه حمله سردردی نداشتند در حالی که در گروه تحت درمان با پروپرانولول 40 درصد بیماران بدون حمله سردرد بودند (001/0

Vermicomposting of cow dung amended with eggshell powder: Possible roles of eggshell powder on the growth models of Serendipita indica, wheat growth and performances and soil enzymes activity

Purpose Chicken eggshell as a byproduct of the egg product industry makes serious problems to the environment. The aim of this study was to evaluate the effect of eggshell as a potential option in supplementing of the organic matter and improvement of soil conditions in the pot culture and the area. Method Two pot experiments were carried out to estimate the effects of CD and CDES vermicomposts provided from cow dung and cow dung + eggshell’s powder, respectively, on symbiotic relationships of Serendipita indica with wheat and soil enzyme activities tested under sterilized and non-sterilized soil conditions, respectively. Two in vitro experiments were also conducted to test the effects of eggshell extract and humic and fulvic acids extracted from CD vermicompost on S. indica growth.Results CDES vermicompost improved soil enzyme activities of urease, phosphatase and invertase. Root colonization of wheat with multiple species of mycorrhiza and facultative symbiont S. indica was improved by CDES. S. indica growth was induced by eggshell extract. Humic and fulvic acids increased in S. indica mycelia mats dry yield. Results revealed when cow dung was amended with eggshell powder provided a better condition for earthworm growth and enhancing the colonization percentage of wheat root with indigenous mycorrhizal fungi. CDES vermicompost caused the increase in soil basal respiration and soil enzymatic activities.Conclusion Eggshell powder growth promoting effect can be attributed to the biologically active compound that exists in eggshell extract

Kinetika konvektivnog sušenja tankog sloja iverja drva topole (Populus Deltoides)

Drying of poplar wood (Populus Deltoides) particles was carried out at different drying conditions using a laboratory convective thin layer dryer. Drying curves were plotted and in order to analyze the drying behavior, the curves were fi tted to different semi-theoretical drying kinetics models. The effective moisture diffusivity was also determined from the integrated Fick’s second law equation and correlated with temperature using an Arrhenius- type model to calculate activation energy of diffusion. The results showed that Midilli et al. model was found to satisfactorily describe the drying characteristics of poplar wood particles dried at all temperatures and air flow velocities. In general, the drying rate increases with increasing air temperature and air fl ow velocity. A short constant drying rate period was observed and drying frequently took place at falling rate period in all cases. The effective moisture diffusivity of poplar wood particles increased from 1.01E-10 to 2.53E-10 m2·s-1 as the drying air temperature increased from 65 to 85 °C. The activation energy of diffusion for 1 m·s-1 and 1.5 m·s-1 air flow velocities were calculated as 27.8 kJ·mol-1 and 50.8 kJ·mol-1, respectively.Pri različitim uvjetima sušenja provedeno je sušenje iverja drva topole (Populus deltoides) uporabom konvektivne sušionice za tanki sloj iverja. Iscrtane su krivulje sušenja, a da bi se analizirao proces sušenja, krivulje su prilagođene različitim teorijskim kinetičkim modelima sušenja. Određena je i efektivna difuznost vode u drvu prema Fickovu drugom zakonu te je primjenom Arrheniusova modela za izračun aktivacijske energije difuzije korelirana s temperaturom. Rezultati su pokazali da model Midillija i suradnika zadovoljavajuće opisuje obilježja sušenja iverja drva topole pri svim temperaturama i brzinama strujanja zraka. U načelu, brzina sušenja povećava se s povećanjem temperature zraka i brzine strujanja zraka. Zabilježeno je kratko razdoblje konstantne brzine sušenja, a sušenje se najčešće postiže u razdoblju pada brzine sušenja. Efektivna difuzivnost vode u iverju drva topole povećana je s 1,01E-10 na 2,53E-10 m2·s-1 s povećanjem temperature zraka sa 65 na 85 °C. Izračunana je aktivacijska energija difuzije za 1 m·s-1 i 1,5 m·s-1 brzine strujanja zraka i iznosi 27,8 kJ·mol-1 i 50,8 kJ·mol-1

Biosorption of uranium from aqueous solutions by nonliving biomass of marinealgae Cystoseira indica

Biosorption of heavy metals can be an effective process for the removal and recovery of heavy metal ions from aqueous solutions. In this paper uranium biosorption by protonated, Ca-pretreated and non-pretreated Cystoseira indica algae biomass was investigated in a batch system. The results of the kinetic studies showed that the sorption of uranium on protonated and non-pretreated biomass followed pseudo-second order kinetics. The effect of pH on the equilibrium uranium sorption capacity of Cystoseira indica exhibited that highest uptake occurred at pH 4 at a solution with 350 mg/l uranium concentration. At various initial uranium concentrations from 50 to 1000 mg/l, batch sorption equilibrium at 30\ubaC was reached within 3 hrs and the sorption isotherms were interpreted in terms of the Langmuir and Freundlich models. Equilibrium data fitted very well to Langmuir model for all studied forms of Cystoseira indica algae. The Freundlich isotherm cannot fit as well as the Langmuir model the equilibrium data of protonated and non-pretreated Cystoseira indica algae. The maximum uranium adsorption capacity on the Ca-pretreated, protonated and non-pretreated Cystoseira indica algae predicted by Langmuir isotherm at pH 4 and 30\ubaC was 454.5, 322.58 and 224.67 mg/g respectivel

An Undiagnosed Case of Hypothalamic Hamartoma with a Rare Presentation.

Background. Hypothalamic hamartomas (HHs) are rare tumor-like malformations that may present with complex partial seizures refractory to anticonvulsants in adulthood. The condition may be misdiagnosed because of rarity. Case Presentation. We report a 25-year-old man with complaint of seizures presented by falling, tonic spasm of limbs, oral automatism, vocalization, and hypermotor activities. His seizures started at the age of one month and presented as eye deviation and upper limbs myoclonic jerk, followed by frequent seizures with variable frequency. The patient had delayed developmental milestones and was mentally retarded. He was hospitalized and underwent video-EEG monitoring and neuroimaging, and the diagnosis of HH was made. The patient became candidate for surgery after that. Conclusion. In this case, the underlying etiology of seizures was diagnosed after 25 years. HH is a rare condition and neurologists may encounter very small number of these cases during their practice. Therefore, they should consider it in patients who present with suspected signs and symptoms

Role of forage legumes mixed cropping on biomass yield and bacterial community composition

Intercropping berseem clover (Trifolium alexandrinum L.) may increase forage yield and free-living N2-fixing bacterial species community. Berseem clover was mixed with Persian clover (Trifolium resupinatum L.) at ratios of 1:0, 3:1, 1:1 and 1:3 and with Persian clover/ annual medic (Medicago regidula cv. Regidula) at ratio of 1:1:1 at Field Crops Department, Faculty of Agriculture, Tarbiat modares university, Tehran, Iran in 2007. Mixed ratio had significant effect on total forage yield. Total forage yield was greatest with a 1:1:1 ratio of clovers to annual medic. Total intercrop yields with clovers/ annual medic at 1:1:1 plants m–2 was 214.37g m–2 DM yields. Mixed cropping increased rhizosphere microorganisms viz. bacteria, free-living N2-fixing bacteria and Azotobacter counts. Free-living N2-fixing bacterial species and Azotobacter populations of 96 g-1 soil*103 cells and 24 g-1 soil*102 cells, respectively, obtained from mixed cropping with 1:1:1 clovers to annual medic ratios

Health Information Seeking Behavior (HISB): A Study of a Developing Country

The purpose of this study was to increase the understanding of the ways that people find health information in Iran, as a developing country, and also to identify how they evaluate the roles of public libraries in providing their users with health information. The setting of the study is public libraries of Qazvin City of Iran. The four main public libraries in different areas of the city were selected for research. Sample size of this study was 200(n=200). To collect data a structured questionnaire was used. Data were summarized using frequency (%) for qualitative variables. The Chi -Square tests were also used to test the association between the socio-demographic variables and health information seeking behavior. The study indicates that health information seekers in Iran are passive information seekers rather than active ones. The results showed that most common resources for seeking health information were “TV” and “discussions with others”. Among the persons used internet for search health information, search engines such as Google or Yahoo were more used. Also results indicated that among persons going to public libraries, there was a group that referred to public library for finding information about health and for using information sources such as medical magazines, books and etc. In review of relationship between socio-demographic properties such as age, gender, education and job and the use of health information resource conclude that there is a meaningful-relationship between education level and use of internet for getting health information and between age, job and “discussions with family, relatives or close friends” for receiving health information. This study suggests that one of the key issues in public libraries could be educating the citizens (its members at least) until people become familiar with available health resources in the library and even librarians teach them how to search on the authentic websites

Is librarians’ health affected by ergonomic factors at the work place?

Introduction: It is obvious that every professional worker is known as an active agent in production and productivity. Therefore; employers consider specifically the health of their staff and creating a suitable space in agreement with their physical and psychological characteristics. Librarianship is also among those professions. However; there should be more evidence in order to shed light on the importance of the ergonomic factors for all library managers and policy makers and moreover; make the staff both reach self-awareness and take the right action about the health of their career. The very aim of this study is to find out whether librarians’ health is affected by the ergonomic factors or no? Methods: This is a descriptive survey study. Musculoskeletal disorders were studied using a questionnaire and checklist designed based on NAYUSH and USHA standards. The questionnaire was composed of two parts: the first part included questions about demographic information and the second part included questions related to musculoskeletal disorders based on the Nordic questionnaire. The data were collected and analyzed using SPSS software, and the results were obtained. Results: The study indicated that librarians’ health is affected by ergonomic factors. 52.6% of the staff had some kinds of musculoskeletal symptoms and disorders. The greatest complications were on neck and back discomfort caused by working with improper working tools. Conclusion: Despite the population being young, the incidence of complications was high and there was a meaningful relationship between increasing work experience and the incidence of experiencing musculoskeletal symptoms. Moreover; the working factors that affected different parts of the body were found mostly in the neck and back regions

The Effects of Hydrogen Peroxide Pretreatment of Seeds on Morpho-Physiological and Biochemical Characteristics of Wheat under Salt Stress

Salinity is one of the main factors to reduce crop production worldwide, especially in dry land farms. In this study the effect of pretreatment of wheat seed with hydrogen peroxide (H2O2) on various traits of wheat (Sardary) including morph-physiological parameters and yield components under salinity conditions were evaluated. This experiment was carried out in a randomized complete block design with three replications, in greenhouse. Treatments were three salinity levels (0, 80 and 120 Mm) and four concentrations of hydrogen peroxide (0, 25, 50 and 80 Mm). In this study, salinity affected all of yield components, levels of antioxidants, photosynthetic pigments, length and number of leaf stomata. Pretreatment of seed with hydrogen peroxide alleviated the effect of salinity on yield through positive effect on plant water relation, pigments, leaf area and stomata. Plants from pretreatment of seed with hydrogen peroxide had higher relative water content, chlorophyll and carotenoid pigments, leaf area and lower number of stomata and larger length of stomata under salt stress condition as compared with control. Seed pretreatment with hydrogen peroxide also reduced the adverse effect of salinity