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Search Results: 1 - 10 of 1235 matches for " Mandana Mansour Ghanaie "
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Acute Urinary Retention in Children
Seyyed Alaeddin Asgari,Mandana Mansour Ghanaie,Nasser Simforoosh,Abdolmajid Kajbafzadeh
Urology Journal , 2005,
Abstract: Purpose: Acute urinary retention in children is a relatively rare entity. There are a variety of causes that are poorly defined in the literature. We review our cases of acute urinary retention in children at three major pediatrics centers in Iran. Materials and Methods: Between 1996 and 2003, children (up to 14 years old) who had been referred due to acute urinary retention were examined. Urinary retention was defined as inability to empty the bladder volitionally for more than 12 hours with a urine volume greater than expected for age or a palpably distended bladder. All data from the patients’ past medical history, physical examination, and laboratory and radiographic assessments were collected. Also, cystourethroscopy and urodynamic procedures had been carried out according to patient’s conditions. Patients with secondary urinary retention, including those with surgical history, immobility or chronic neurological disorders, mental retardation, and drugs or narcotics consumption were excluded from study. Results: There were 86 patients meeting the inclusion criteria, consisting of 58 males with a median age of 4 years (range 1 month to 14 years) and 58 females with a median age of 4 years (range 4 month to 14 years). Etiologies were lower urinary tract stone in 27.9%, neurological disorders in 10.4%, trauma in 10.4%, local inflammatory causes in 9.1%, urinary tract infection in 7.4%, ureterocele in 7.4%, benign obstructing lesions in 5.8%, iatrogenic in 5.8%, constipation in 4.6%, imperforated hymen in 3.5%, and large prostate utricle, urethral foreign body, and rhabdomyosarcoma each in 1 case (1.1%). Conclusion: The most common cause of acute urinary retention was lower urinary tract stone in our pediatric cases. Ureterocele and stone were the main findings in girls and boys, respectively, and urinary retention in boys was twice as prevalent as that in girls.
Effects of Varicocele Repair on Spontaneous First Trimester Miscarriage: A Randomized Clinical Trial
Mandana Mansour Ghanaie,Seyyed Alaeddin Asgari,Nassrin Dadrass,Aliakbar Allahkhah
Urology Journal , 2012,
Abstract: PURPOSE: To evaluate the effects of varicocelectomy on semen parameters, pregnancy rates, and live birth in couples with first term recurrent miscarriage. MATERIALS AND METHODS: One hundred and thirty-six women with recurrent miscarriage were recruited into this study. All of the husbands had normal semen parameters according to World Health Organization criteria and clinical varicocele. In order to evaluate the causes of recurrent pregnancy loss, we looked for chromosomal abnormalities and endocrine, chronic inflammatory, and infectious diseases. Both groups were well matched according to male/female age, varicocele grade, and smoking history. These couples were assigned randomly into two groups: group one (n = 68), in which male partners underwent varicocele repair, and group two (n = 68), which underwent expectant therapy. All of the couples were followed up monthly up to 12 months. All of the women who conceived were followed up until delivery. In each 3-month follow-up visits, two semen analyses were performed. RESULTS: Mean sperm concentration, sperm progressive motility, and sperm with normal morphology improved significantly after elapsing 6 months from varicocelectomy by 75.0%, 15.9%, and 14.3%, respectively, versus the expectant group (P < .01). The overall pregnancy rate was 44.1% and 19.1% within a 12-month period in groups 1 and 2, respectively (P = .003). Of women who conceived in groups 1 and 2, 13.3% and 69.2% developed miscarriage (P = .001). Sperm density/mL (r = 0.072; P = .001), time elapsed from varicocelectomy (r = 0.068; P = .001), and female age (r = -0.062; P = .002) were three most significantly related independent factors to pregnancy rate by multiple regression analysis. CONCLUSION: Varicocelectomy improves semen quality, increases pregnancy rate, and decreases miscarriage rate significantly. Further controlled studies to confirm our results seem warranted.
Pediatric Sutureless Circumcision Without Using Skin Closure Adhesives A New Technique for Poor Setting
Seyyed Alaeddin Asgar,Mandana Mansur Ghanaie,Siavash Falahatkar,Hassan Niroomand
Urology Journal , 2012,
Abstract: No Abstract
Is Extracorporeal Shockwave Lithotripsy Safe in Patients With Chronic Bleeding Tendency?
Seyed AlaeddinAsgari,MajidKazemzadeh,AfshinSafaeeAsl,Mandana Mansour Ghanaei
Urology Journal , 2011,
Diagnostic Accuracy of C-Reactive Protein and Erythrocyte Sedimentation Rate in Patients with Acute Scrotum
Seyyed Alaeddin Asgari,Gholamreza Mokhtari,Siavash Falahatkar,Mandana Mansour-Ghanaei
Urology Journal , 2006,
Spatial Modeling of Residential Crowding in Alexandria Governorate, Egypt: A Geographically Weighted Regression (GWR) Technique  [PDF]
Shawky Mansour
Journal of Geographic Information System (JGIS) , 2015, DOI: 10.4236/jgis.2015.74029
Abstract: Despite growing research for residential crowding effects on housing market and public health perspectives, relatively little attention has been paid to explore and model spatial patterns of residential crowding over space. This paper focuses upon analyzing the spatial relationships between residential crowding and socio-demographic variables in Alexandria neighborhoods, Egypt. Global and local geo-statistical techniques were employed within GIS-based platform to identify spatialvariations of residential crowding determinates. The global ordinary least squares (OLS) modelassumes homogeneity of relationships between response variable and explanatory variablesacross the study area. Consequently, it fails to account for heterogeneity of spatial relationships. Local model known as a geographically weighted regression (GWR) was also employed using the sameresponse variable and explanatory variables to capture spatial non-stationary of residentialcrowding. A comparison of the outputs of both models indicated that OLS explained 74 percent ofresidential crowding variations while GWR model explained 79 percent. The GWR improvedstrength of the model and provided a better goodness of fit than OLS. In addition, the findings of this analysis revealed that residential crowding was significantly associated with different structural measures particularly social characteristics of household such as higher education and illiteracy. Similarly, population size of neighborhood and number of dwelling rooms were found to have direct impacts on residential crowding rate. The spatial relationship of these measures distinctly varies over the study area.
Temperature Effects on the Equation of State and Symmetry Energy: A Critique  [PDF]
Hesham Mansour
Open Journal of Microphysics (OJM) , 2018, DOI: 10.4236/ojm.2018.84004
The investigation of strongly interacting systems ranges from matter inside atomic nuclei to matter under extreme conditions in astrophysics. These systems require the introduction of nuclear forces and a systematic many-body approach to solve the strong interaction particles. Understanding the behavior of infinite nuclear matter provides a path to predict the properties of neutron stars and gives insights to astrophysical phenomena. Three-nucleon forces have to be considered when studying nuclear systems, because their impact is necessary to reproduce properties of nuclei and to correctly obtain the neutron drip line. Moreover, they are needed to predict the empirical saturation properties of infinite nuclear matter. The self-consistent Green’s Function approach paves the way for an improved Ab initio analysis of nuclear matter, thereby providing the basis for the equation of state of neutron stars and supernova explosions.
On the Preon Model  [PDF]
Hesham Mansour
Open Journal of Microphysics (OJM) , 2019, DOI: 10.4236/ojm.2019.92002
One of the fundamental questions is that “what the matter is composed of?” In 1897, atoms are known as the basic building blocks of matter. In the year 1911, Ernest Rutherford demonstrated that when alpha particles are scattered on a thin gold foil that the atom is composed of mostly empty space with a dense core at its center which is called the nucleus. Thereafter, protons and neutrons were discovered. In 1956, McAllister and Hofstadter published experimental results of elastic scattering of the electrons from a hydrogen target which revealed that the proton has an internal structure. In 1964, Gell-Mann (and independently) Zweig proposed that nucleons are composed of point-like particles which are called quarks. These quarks are postulated to have spin-1/2, fractional electric charge. Combinations of different flavors of quarks yield protons and neutrons which belong to the type of particles called baryons (built up from three quarks) and mesons as (quark and an antiquark). These two groups of particles are categorized as hadrons. The quarks showed further decay properties which suggested that they have a substructure.
Hybrid Ameloblastoma in the Anterior Man-dible  [PDF]
Mandana Pourian, Mersad Mehranahad, Pooneh Dehghan
Advances in Computed Tomography (ACT) , 2015, DOI: 10.4236/act.2015.43006
Abstract: Ameloblastoma—a benign epithelial odontogenic tumor-histologically occurs in different patterns, the most common of which are plexiform and follicular. “Hybrid” ameloblastoma is a variant in which areas of follicular or plexiform pattern (generally called convention alameloblastoma) coexist with areas of pronounced stromal desmoplasia (desmoplastic ameloblastoma). They most often occur in the mandibular ramus. We present a case of “hybrid” lesion—desmoplastic and conventional ameloblastoma—in the anterior mandible, focusing on its’ imaging features.
Impact of Reflective Writing and Labatorials on Student Understanding of Force and Motion in Introductory Physics  [PDF]
Calvin S. Kalman, Mark Lattery, Mandana Sobhanzadeh
Creative Education (CE) , 2018, DOI: 10.4236/ce.2018.94041
Abstract: In this paper, we examine a way to deal with alternative student conceptions about force and motion in a university level introductory physics course.? The course combines Reflective Writing,an activity that engages students in textual material metacognitively, and Labatorials,an in-class active learning intervention. Semi-structured interviews and student writing provide evidence of conceptual change.
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