196,063 research outputs found
Advantages of employing multilevel monitoring wells for design of tunnels subjected to multi-aquifer alluvial
No full textFor tunnels being excavated through multiple aquifer formations, having precise knowledge of the aquifers' hydraulic head becomes essential for determining groundwater inflow into the tunnel and analyzing its stability, specifically using multilevel monitoring systems. In the multi-aquifer alluvial section of the Glas tunnel (Iran), since the hydraulic head calculations were based on the data obtained from single-piezometer boreholes, the excavation risk was assessed to be at high level and the tunnel seemed to be unstable, thus an incorrect conclusion was derived from the misleading data. To take cost mitigation measures into account, it was necessary to calculate the hydraulic head at tunnel level accurately. By installing nested and clustered wells the mean hydraulic head was measured to be 70 m, significantly different from the 90 m previously determined by boreholes. Considering the updated value, the groundwater inflow and bulkhead load,
formerly calculated as 0.65 m3/s and 9.5 bars, were determined to be 0.49 m3/s and 7.5 bars, respectively.For tunnels being excavated through multiple aquifer formations, having precise knowledge of the aquifers’ hydraulic head becomes essential for determining groundwater inflow into the tunnel and analyzing its stability, specifically using multilevel monitoring systems. In the multi-aquifer alluvial section of the Glas tunnel (Iran), since the hydraulic head calculations were based on the data obtained from single-piezometer boreholes, the excavation risk was assessed to be at high level and the tunnel seemed to be unstable, thus an incorrect conclusion was derived from the misleading data. To take cost mitigation measures into account, it was necessary to calculate the hydraulic head at tunnel level accurately. By installing nested and clustered wells the mean hydraulic head was measured to be 70 m, significantly different from the 90 m previously determined by boreholes. Considering the updated value, the groundwater inflow and bulkhead load, formerly calculated as 0.65 m3/s and 9.5 bars, were determined to be 0.49 m3/s and 7.5 bars, respectively
Cerebral Palsy in 1-12 Year Old Children in Southern Iran
No full textHow to Cite This Article: Inaloo S, Katibeh P, Ghasemof M. Cerebral Palsy in 1-12 Year Old Children in Southern Iran. Iran J Child Neurol. Winter 2016; 10(1):35-41.AbstractObjectiveCerebral palsy (CP) is a non-progressive CNS disorder due to an insult to the growing brain, usually occurring in the first two years of life. During the recent years, its etiology has been changed; perinatal and postnatal insults are not considered as its main causes in developed countries any more. The aim of this study was to evaluate the causes of CP in children in southern Iran.Materials & MethodsOverall, 200 children with CP aged 1-12 yr old referring to Pediatric Neurology Clinic affiliated to Shiraz University of Medical Sciences, Shiraz, Iran between 2012 and 2013 were enrolled. In addition, 200 healthy age and sex-matched children were considered as the control group. Exclusion criteria were isolated movement disorders with no other evidence of CP, progressive neurologic disorders, metabolic disorders, and incomplete or uncertain past history. After collecting the data on pregnancy period, prenatal history and past medical problems, they were analyzed with appropriate statistical methods.ResultsMaternal age, medical problems during pregnancy period, route of delivery, head circumference at birth, neonatal admission, neonatal jaundice, and prematurity were the main risk factors for CP.DiscussionThe distribution of risk factors of CP is different from that of developed countries in our region. Pre- and peri-natal etiologies are still among the common causes of CP in Iran
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Dr. Glendon Swarthout
No full textHosted by Roger M. Busfield, MSU Assistant Professor of Speech and Theater, Meet the Author is designed to introduce a general audience to a contemporary author and their work through in-depth interviews. This episode features a conversation between Dr. Glendon Swarthout, prolific author and English professor at MSU, and assistant professors Sam S. Baskett and Theodore B. Strandness
A Novel Mutation in Aspartoacylase Gene; Canavan Disease
No full textHow to Cite This Article: Ashrafi MR, Tavasoli AR, Katibeh P, Aryani O, Vafaee-Shahi M. A Novel Mutation In Aspartoacylase Gene; Canavan Disease. Iran J Child Neurol. Autumn 2015; 9(4): 54-57.AbstractObjectiveCanavan disease (CD) is a type of vacuolating leukodystrophy with autosomal recessive inheritance. Aspartoacylase deficiency results in decrease of myelin biosynthesis, dysmyelination and brain edema. Although CD is a very common in Ashkenazi Jews patients, several cases have been reported from non- Jewish population. This report is based on a homozygous C.202G>A mutation in the ASPA gene identified from an Iranian patient. To our knowledge, this type of mutation has not been reported in non-Jewish population in the literature
Guillain-Barre Syndrome Presenting With Bilateral Facial Nerve Palsy
No full textHow to Cite This Article: Inaloo S, Katibeh P. Guillain-Barre Syndrome Presenting With Bilateral Facial Nerve Palsy. Iran J Child Neurol. 2014 Winter;8(1):69-71.ObjectiveThis case study is about an 11-year-old girl with bilateral facial weakness, abnormal taste sensation, and deep tendon reflexes of both knees and ankles were absent. However, the muscle power of the lower and upper extremities across all muscle groups was normal. After 2 days, she developed paresthesia and numbness in the lower extremities. Other neurologic examinations, such as fundoscopic evaluation of the retina were normal with the muscle power of both upper- and lower-extremities intact. A lumbar puncture revealed albumincytological dissociation. EMG and NCV were in favor of Guillain-Barre syndrome, for which IVIG was prescribed and the abnormal sensations in the lower limbs rapidly improved. Bilateral facial diplegia without weakness and paresthesia is a variant of Guillain-Barre syndrome that mostly presents withacute onset, rapid progression with or without limb weakness, paresthesia, and decreased or absent DTR and albumin-cytological dissociation.References:Barbi F, Ariatti A, Funakoshi K, Meacci M, Odaka M, Galassi G. Parvovirus B19 infection antedating Guillain-Barre’ syndrome variant with prominent facial diplegia. J Neurol 2011 Aug; 258(8):1551-2. doi: 10.1007/s00415-011-5949-5. Epub 2011 Feb 15.Yardimci N, Avci AY, Kayhan E, Benli S. Bilateral facial nerve enhancement demonstrated by magnetic resonance imaging in Guillain-Barré syndrome. Neurol Sci 2009 Oct; 30(5):431-3. doi:10.1007/s10072-009-0120-0.Lim TC, Yeo WS, Loke KY, Quek SC. Bilateral facial nerve palsy in Kawasaki disease. Ann Acad Med Singapore 2009; 38(8):737-8.Quintas E, Silva A, Sarmento A. Bilateral facial palsy in a young patient after meningococcal meningitis, associated to herpetic infection. Arq Neuro-Psiquiatr 2009; 67(3a): 712-14.Jain V, Deshmukh A, Gollomp S. Bilateral facial paralysis: case presentation and discussion of differential diagnosis. J Gen Intern Med 2006; 21(7):C7-10.Kamaratos A, Kokkoris S, Protopsaltis J, Agorgianitis D, Koumpoulis H, Lentzas J et al. Simultaneous Bilateral Facial Palsy in a Diabetic Patient. Diabetes Care 2004; 27 (2): 623-24.Magliocca KR, Leung EM, Desmond JS. Parotid swelling and facial nerve palsy: an uncommon presentation of sarcoidosis. Gen Dent 2009; 57(2):180-2.Atsumi M, Kitaguchi M, Nishikawa S, Susuki K. A variant of Guillain-Barré syndrome with prominent bilateral peripheral facial nerve palsy-facial diplegia and paresthesias. Rinsho Shinkeigaku 2004 Aug; 44(8):549-52.Narayanan RP, James N, Ramachandran K, Jaramillo MJ. Guillain-Barré Syndrome presenting with bilateral facial nerve paralysis: a case report. Cases J 2008 Dec 8;1(1):379.Azarisman SMS, Shahrin TCA, Marzuki AO, Fatnoon NNA, Rathor MY. Bilateral facial nerve palsy secondary to an atypical presentation of Guillain-Barré syndrome. IMJ 2009; 8(1):41-4.Sethi NK, Torgovnick J, Arsura E, Johnston A, Buescher E. Facial diplegia with hyperreflexia--a mild Guillain-Barre Syndrome variant, to treat or not to treat? J Brachial Plex Peripher Nerve Inj 2007; 10(2):9.Burina A, Sinanović O, Smajlović D, Vidovic. Bilateral Oculomotor Nerve Palsy in Guillain-barre Syndrome. Med Arh 2008; 62 (2):119-120.Verma R, Chaudhari TS, Giri P. Unilateral facial palsy in Guillain-Barre syndrome (GBS): a rare occurrence. BMJ Case Rep 2012 Oct 19; 2012. pii: bcr2012007077. doi: 10.1136/bcr-2012-007077.Susuki K, Koga M, Hirata K, Isogai E, Yuki N.A Guillain-Barré syndrome variant with prominent facial diplegia. J Neurol 2009; 256(11): 1899-1905
Simulation of thermal plant optimization and hydraulic aspects of thermal distribution loops for large campuses
No full textFollowing an introduction, the author describes Texas A&M University and its utilities system. After that, the author presents how to construct simulation models for chilled water and heating hot water distribution systems. The simulation model was used in a $2.3 million Ross Street chilled water pipe replacement project at Texas A&M University. A second project conducted at the University of Texas at San Antonio was used as an example to demonstrate how to identify and design an optimal distribution system by using a simulation model. The author found that the minor losses of these closed loop thermal distribution systems are significantly higher than potable water distribution systems. In the second part of the report, the author presents the latest development of software called the Plant Optimization Program, which can simulate cogeneration plant operation, estimate its operation cost and provide optimized operation suggestions. The author also developed detailed simulation models for a gas turbine and heat recovery steam generator and identified significant potential savings. Finally, the author also used a steam turbine as an example to present a multi-regression method on constructing simulation models by using basic statistics and optimization algorithms. This report presents a survey of the author??s working experience at the Energy Systems Laboratory (ESL) at Texas A&M University during the period of January 2002 through March 2004. The purpose of the above work was to allow the author to become familiar with the practice of engineering. The result is that the author knows how to complete a project from start to finish and understands how both technical and nontechnical aspects of a project need to be considered in order to ensure a quality deliverable and bring a project to successful completion. This report concludes that the objectives of the internship were successfully accomplished and that the requirements for the degree of Degree of Engineering have been satisfied
An epidemiologic study of 389 children with epilepsy in southern Iran
No full textHow to Cite this Article: Inaloo S, Katibeh P. An epidemiologic study of 389 children with epilepsy in southern Iran.Iranian Journal of Child Neurology2011;5(4):15-20Objective Approximately 4% of the world's population experience one or more febrile seizures during their lifetime, and 0.5-1% of the population has active epilepsy.Less than one-third of the reported seizures are categorized as epilepsy. The cause of established epilepsy is important in determining the treatment and prognosis.Materials & Methods We studied 389 cases of documented epilepsy in children aged 2 months to 18 years who visited the hospital for neurologic examination during 2005-2010.Chi-square test or Fisher's exact test was performed for categorical variables.Results The most common age for the first seizure was below 2 years, and the most common type of epilepsy was generalized tonic-clonic seizure. Electroencephalography (EEG) showed an epileptic pattern in 60%, 29.8%, and 51% of the patients with idiopathic, symptomatic, and cryptogenic epilepsy, respectively. This pattern was significantly different among these 3 categories of epilepsy.Conclusion The most common type of seizure was cryptogenic; however, in most industrialized countries, idiopathic epilepsies were more frequent. With respect to the age and sex of patients, the prevalence of epilepsy in southern Iran is not so much different from that of patients in other parts of the world. As to generalized or partial epilepsy, there are different reports from different part ofthe world; however, generalized tonic-clonic seizures were more common in our area.References Hauser, Hesdorffer DC. Epilepsy, frequency, causes and consequences. New WA York, NY: Demos Publications;1990.P.1–51.Jallon P. Epilepsy in developing countries. 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Calcific neurocysticercosis and epileptogenesis. Neurology 2004; 62: 1934-38. Sillanpaa M, Jalava M, Kaleva O, Shinnar S. Long-term prognosis of seizures with onset in childhood. N Engl J Med 1998; 338:1715-22.O’Dell C, Shinnar S. Initiation and discontinuation of antiepileptic drugs. Neurol Clin 2001 ;19(2):289-311.Medina MT, Durón RM, Martínez L, Osorio JR, Estrada AL, Zúniga C, et al. Prevalence, incidence, and etiology of epilepsies in rural Honduras: the SalamáStudy. Epilepsia 2005 Jan;46(1):124-31.Sander JWAS. Some aspects of prognosis in the epilepsies:a review. Epilepsia1993;34:1007-16.Berg AT, Shinnar S, Levy SR, Testa FM, Smith-Rapaport S, Beckerman B. Defining early seizure outcomes inpediatric epilepsy: the good, the bad and the in-between.Epilepsy Res 2001 Jan;43(1):75-84. King M, Newton M, Jackson G, Fitt G, Mitchell L, Silvapulle M, et al. 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