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https://www.readbyqxmd.com/read/28643753/dosimetric-characteristic-of-physical-wedge-versus-enhanced-dynamic-wedge-based-on-monte-carlo-simulations
#1
Seied Rabie Mahdavi, Ghazale Geraily, Ahmad Mostaar, Arman Zia, Golbarg Esmaili, Somayeh Farahani
AIM OF STUDY: Physical wedges (PWs) are widely used in radiotherapy to obtain tilted isodose curves, but they alter beam quality. Dynamic wedges (DWs) using moving collimator overcome this problem, but measuring their beam data is not simple. The main aim of this study is to obtain all dosimetric parameters of DWs produced by Varian 2100CD with Monte Carlo simulation and compare them to those from PWs. SUBJECTS AND METHODS: To simulate 6 MV photon beams equipped with PW and DW, BEAMnrc code was used...
April 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28629463/how-understanding-and-application-of-drug-related-legal-instruments-affects-harm-reduction-interventions-in-cambodia-a-qualitative-study
#2
Sovannary Tuot, Chanrith Ngin, Khuondyla Pal, Sochenda Sou, Ghazal Sawez, Phylicia Morgan, Mony Srey, Tola Chan, Pheak Chhoun, Olga Golichenko, Sok Chamreun Choub, Siyan Yi
BACKGROUND: Harm reduction interventions in Cambodia face numerous obstacles because of conflicting understanding and interests and inconsistencies in the implementation by law enforcement officials. This study aims to examine how understanding and application of Drug Control Law (DCL) and Village/Commune Safety Policy (VCSP) affects harm reduction interventions in Cambodia from the standpoints of law enforcement officials, people who inject drugs and people who use drugs (PWID/PWUD), as well as other key stakeholders...
June 19, 2017: Harm Reduction Journal
https://www.readbyqxmd.com/read/28619848/red-blood-cell-gardos-channel-kcnn4-the-essential-determinant-of-erythrocyte-dehydration-in-hereditary-xerocytosis
#3
Raphaël Rapetti-Mauss, Véronique Picard, Corinne Guitton, Khaldoun Ghazal, Valérie Proulle, Catherine Badens, Olivier Soriani, Loïc Garçon, Hélène Guizouarn
No abstract text is available yet for this article.
June 15, 2017: Haematologica
https://www.readbyqxmd.com/read/28610408/knowledge-and-awareness-about-cervical-cancer-vaccine-hpv-among-parents-in-sharjah
#4
Ahmad Saqer, Shaymaa Ghazal, Hiba Barqawi, Juman Adnan Babi, Ranya AlKhafaji, Mohamed Mohsen Elmekresh
Background and aim: Cervical cancer (CC) is the 7th most common cancer worldwide. It is the 4th most common cancer in females causing 7.5% of all female cancer deaths. Human Papilloma Virus (HPV) infection is the leading cause of CC and other diseases worldwide. Despite several measures taken to reduce the risk of infection with HPV, the most effective method remains the HPV vaccine. The aim of this study was to assess the knowledge and attitudes of parents in Sharjah towards HPV and whether or not they would vaccinate their daughters...
May 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28610407/lack-of-hpv-in-benign-and-malignant-epithelial-ovarian-tumors-in-iran
#5
Farah Farzaneh, Seyed Alireza Nadji, Donya Khosravi, Maryam Sadat Hosseini, Mohammad Hashemi Bahremani, Mohammad Chehrazi, Ghazal Bagheri, Afsaneh Sigaroodi, Zahra Haghighatian
Background: Ovarian epithelial tumors one of the most common gynecological neoplasms; we here evaluated the presence of HPV in benign and malignant examples. Methods: In this cross-sectional study the records of 105 patients with epithelial ovarian tumors (benign and malignant) referred to Imam Hossein University Hospital from 2012 to 2015 were evaluated along with assessment of the presence of the HPV infection using PCR. Results: Among 105 patients, comprising 26 (24.8%) with malignant and 79 (75.2%) with benign lesions, the factors found to impact on malignancy were age at diagnosis, age at first pregnancy, number of pregnancies and hormonal status...
May 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28575965/a-review-of-biocompatible-metal-injection-moulding-process-parameters-for-biomedical-applications
#6
REVIEW
M F F A Hamidi, W S W Harun, M Samykano, S A C Ghani, Z Ghazalli, F Ahmad, A B Sulong
Biocompatible metals have been revolutionizing the biomedical field, predominantly in human implant applications, where these metals widely used as a substitute to or as function restoration of degenerated tissues or organs. Powder metallurgy techniques, in specific the metal injection moulding (MIM) process, have been employed for the fabrication of controlled porous structures used for dental and orthopaedic surgical implants. The porous metal implant allows bony tissue ingrowth on the implant surface, thereby enhancing fixation and recovery...
September 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28558213/phthalocyanines-and-tetrapyrazinoporphyrazines-with-two-cationic-donuts-high-photodynamic-activity-as-a-result-of-rigid-spatial-arrangement-of-peripheral-substituents
#7
Basma Ghazal, Miloslav Machacek, Mona Abbas Shalaby, Veronika Novakova, Petr Zimcik, Saad Makhseed
High photodynamic activity was observed for hexadeca-cationic zinc, magnesium and metal-free phthalocyanines (Pcs) and tetrapyrazinoporphyrazines with EC50 values as low as 5 nM (MCF-7 cells) for the best compound; this activity was several times better than that of clinically established photosensitizers verteporfin, temoporfin, S3AlOHPc or protoporphyrin IX. This lead compound was characterized by low dark toxicity (TC50 = 369 μM), high efficiency against other cell lines (HCT 116 and HeLa) and possible activation by light above 680 nm...
May 30, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28557903/functional-recovery-following-early-kyphoplasty-versus-conservative-management-in-stable-thoracuolumbar-fractures-in-parachute-jumpers-a-randomized-clinical-trial
#8
Mohammad S Masoudi, Ali Haghnegahdar, Fariborz Ghaffarpasand, Ghazal Ilami
STUDY DESIGN: A randomized clinical trial. OBJECTIVE: To compare the functional recovery between early kyphoplasty and conservative care in paratroopers with stable thoracolumbar fractures. SUMMARY OF BACKGROUND DATA: Treatment of traumatic stable thoracolumbar fractures in young individuals is still a debate. Conservative management and kyphoplasty are options of therapy. But enough data are not available for supporting each. METHODS: We included 70 paratroopers with stable thoracolumbar fractures (A1 and A2 classification according to AOSpine thoracolumbar spine injury classification system) presenting <60 days after trauma and hyperintensity in T2-weighted magnetic resonance imaging...
May 26, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28527605/analysis-of-gafchromic-ebt3-film-calibration-irradiated-with-gamma-rays-from-different-systems-gamma-knife-and-cobalt-60-unit
#9
Monsen Najafi, Ghazale Geraily, Alireza Shirazi, Mahbod Esfahani, Javad Teimouri
In recent years, Gafchromic films are used as an advanced instrument for dosimetry systems. The EBT3 films are a new generation of Gafchromic films. Our main interest is to compare the response of the EBT3 films exposed to gamma rays provided by the Theratron 780C as a conventional radiotherapy system and the Leksell Gamma Knife as a stereotactic radiotherapy system (SRS). Both systems use Cobalt-60 sources, thus using the same energy. However, other factors such as source-to-axis distance, number of sources, dose rate, direction of irradiation, shape of phantom, the field shape of radiation, and different scatter contribution may influence the calibration curve...
May 17, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28515614/symmetrical-peripheral-gangrene-in-severe-plasmodium-vivax-malaria
#10
Prabhat Kumar, Ghazal Tansir, Harish Gupta, Juhi Dixit
No abstract text is available yet for this article.
April 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28511492/cardiac-myeloid-sarcoma-review-of-literature
#11
REVIEW
Archana Gautam, Ghazal Kooshk Jalali, Kamal Kant Sahu, Prateek Deo, Sikander Ailawadhi
Granulocytic Sarcomas (GS) also called as Myeloid Sarcomas (MS) or chloromas are the representatives of extramedullary infiltrates of immature myeloid cells including myeloblasts, promyelocytes and myelocytes. Primary cardiac malignancies per se are rare and infiltration of cardiac muscles by secondary malignant cells is also an uncommon finding. Out of these cardiac tumors, contribution of Cardiac Myeloid Sarcoma (CMS) is even more smaller thereby limiting our knowledge about this rare entity. Because of its very lower incidence, an exact guideline for diagnosis and management is still missing and usually haematologists around the world are treating CMS based on their clinical acumen...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28508840/comparison-of-beam-hardening-effect-of-physical-and-enhanced-dynamic-wedges-at-bladder-inhomogeneity-using-ebt3-film-dosimeter
#12
Ghazale Geraily, Nooshin Sharafi, Alireza Shirazi, Mahbod Esfehani, Maryam Masoudifar, Blookat Eftekhar Rajab
INTRODUCTION: Using physical wedges (PWs) to modify dose distribution and more homogeneous target coverage is a well-established technique. However, there are many problems with PWs known as beam hardening, which made them problematic. This can be overcome by dynamic wedges which do not filter beam. Comparison of physical properties of physical and enhanced dynamic wedges (EDWs) restricted to homogeneous medium. Hence, the main aim of this study is to compare dosimetric properties of physical and EDWs at bladder inhomogeneous phantom as a most common case implementing wedges...
January 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28508357/biofluid-proteomics-and-biomarkers-in-traumatic-brain-injury
#13
Safa Azar, Anwarul Hasan, Richard Younes, Farah Najdi, Lama Baki, Hussein Ghazale, Firas H Kobeissy, Kazem Zibara, Stefania Mondello
Traumatic brain injury (TBI) is an injury to the brain caused by an external mechanical force, affecting millions of people worldwide. The disease course and prognosis are often unpredictable, and it can be challenging to determine an early diagnosis in case of mild injury as well as to accurately phenotype the injury. There is currently no cure for TBI-drugs having failed repeatedly in clinical trials-but an intense effort has been put to identify effective neuroprotective treatment. The detection of novel biomarkers, to understand more of the disease mechanism, facilitates early diagnosis, predicts disease progression, and develops molecularly targeted therapies that would be of high clinical interest...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28508355/neuroproteomics-studies-challenges-and-updates
#14
Naify Ramadan, Hussein Ghazale, Mohammad El-Sayyad, Mohamad El-Haress, Firas H Kobeissy
The Human Genome Project in 2003 has resulted in the complete sequence of ~99% of the human genome paving the road for the Human Proteome Project (HPP) assessing the full characterization of the translated protein map of the 20,300 protein-coding genes. Consequently, the emerging of the proteomics field has successfully been adopted as the method of choice for the proteome characterization. Proteomics is a term that is used to encompass multidisciplinary approaches combining different technologies that aim to study the entire spectrum of protein changes at a specific physiological condition...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28496348/role-of-sodium-glucose-cotransporter-2-inhibitors-in-type-i-diabetes-mellitus
#15
REVIEW
Hala Ahmadieh, Nisrine Ghazal, Sami T Azar
The burden of diabetes mellitus (DM) in general has been extensively increasing over the past few years. Selective sodium glucose cotransporter-2 (SGLT2) inhibitors were extensively studied in type 2 DM and found to have sustained urinary glucose loss, improvement of glycemic control, in addition to their proven metabolic effects on weight, blood pressure, and cardiovascular benefits. Type 1 DM (T1D) patients clearly depend on insulin therapy, which till today fails to achieve the optimal glycemic control and metabolic targets that are needed to prevent risk of complications...
2017: Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy
https://www.readbyqxmd.com/read/28475133/comment-on-sundseth-et-al-global-sources-and-pathways-of-mercury-in-the-context-of-human-health-int-j-environ-res-public-health-2017-14-105
#16
S M J Mortazavi, Ghazal Mortazavi, Maryam Paknahad
n/a.
May 5, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28473855/simultaneous-determination-of-preservatives-in-dairy-products-by-hplc-and-chemometric-analysis
#17
Fatemeh Zamani Mazdeh, Sima Sasanfar, Anita Chalipour, Elham Pirhadi, Ghazal Yahyapour, Armin Mohammadi, Akram Rostami, Mohsen Amini, Mannan Hajimahmoodi
Cheese and yogurt are two kinds of nutritious dairy products that are used worldwide. The major preservatives in dairy products are sodium benzoate, potassium sorbate, and natamycin. The maximum permitted levels for these additives in cheese and yogurt are established according to Iranian national standards. In this study, we developed a method to detect these preservatives in dairy products by reversed phase chromatography with UV detection in 220 nm, simultaneously. This method was performed on C18 column with ammonium acetate buffer (pH = 5) and acetonitrile (73 : 27 v/v) as mobile phase...
2017: International Journal of Analytical Chemistry
https://www.readbyqxmd.com/read/28467317/deep-learning-based-artificial-vision-for-grasp-classification-in-myoelectric-hands
#18
Ghazal Ghazaei, Ali Alameer, Patrick Degenaar, Graham Morgan, Kianoush Nazarpour
OBJECTIVE: Computer vision-based assistive technology solutions can revolutionise the quality of care for people with sensorimotor disorders. The goal of this work was to enable trans-radial amputees to use a simple, yet efficient, computer vision system to grasp and move common household objects with a two-channel myoelectric prosthetic hand. APPROACH: We developed a deep learning-based artificial vision system to augment the grasp functionality of a commercial prosthesis...
June 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28445267/different-clinical-presentations-of-choledochal-cyst-among-infants-and-older-children-a-10-year-retrospective-study
#19
COMPARATIVE STUDY
Davoud Badebarin, Saeid Aslanabadi, Amir Teimouri-Dereshki, Masoud Jamshidi, Tuba Tarverdizadeh, Kaveh Shad, Kamyar Ghabili, Ghazal Khajir
Choledochal cyst is a rare and often benign congenital cystic dilation throughout the biliary tree. Due to the benign nature of choledochal cyst among early-diagnosed patients, the clinical assumption and diagnosis seem to be of utmost significance. Therefore, we sought to assess different clinical manifestations of choledochal cyst and relevant laboratory findings in infants and older children.Retrospectively, medical records of all patients with the diagnosis of choledochal cyst between 2005 and 2015 were reviewed...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28439610/phase-down-of-amalgam-awareness-of-minamata-convention-among-jordanian-dentists
#20
Smj Mortazavi, Ghazal Mortazavi, Maryam Paknahad
[No Abstract Available].
May 2017: Saudi Medical Journal
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