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https://www.readbyqxmd.com/read/28647432/peer-assisted-learning-intensity-modulated-radiotherapy-transition-in-developing-countries
#1
I Mohamad, A Salem, T Abu Hejleh, S Wadi-Ramahi, M Qandeel, S El Khatib, W Asha, S Mhied, O Al Saraireh, W Al-Gargaz, H Abdulelah, A Hosni, A Al Mousa
Intensity-modulated radiotherapy (IMRT) is not widely used in developing countries due to technical challenges and a lack of expertise and resources. We outline head and neck cancer IMRT implementation challenges and highlight how improvised solutions allowed successful IMRT transition in Jordan. This article showcases a 'peer-assisted learning' model, promoting IMRT transition in other developing countries. Unlike the 'top-down' approach, this model is uncommonly addressed in oncology journals. Developing countries could benefit from this article to enhance the adoption of modern radiotherapy technology...
June 21, 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/28647379/-impetigoid-secondary-syphilis
#2
A Sakkah, J Elbenaye, Y Elkhachine, A Jakar, M El Haouri
No abstract text is available yet for this article.
June 21, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28647223/fluid-dynamics-model-on-fluidized-bed-gasifier-using-agro-industrial-biomass-as-fuel
#3
Tamer M Ismail, M Abd El-Salam, Eliseu Monteiro, Abel Rouboa
The present study shows the experimental and numerical results of thermal gasification of biomass, on the energy potential of agro-industrial waste from the Portalegre region. Gasification tests were performed in a pilot-scale fluidized bed gasifier, in order to study the behavior of peach stones and miscanthus to investigate the effect of gasification temperatures at 750°C, 800°C and 850°C at a constant biomass flow rate of 45kg/h. In order to optimize the operating conditions of the biomass gasification process, a numerical model is developed namely COMMENT code...
June 21, 2017: Waste Management
https://www.readbyqxmd.com/read/28647186/bougainvillea-spectabilis-flowers-extract-protects-against-the-rotenone-induced-toxicity
#4
Omar M E Abdel-Salam, Eman R Youness, Nadia A Ahmed, Sayed A El-Toumy, Ahmed M A Souleman, Nermeen Shaffie, Dalia M Abouelfadl
OBJECTIVE: To investigate the effect of two extracts of Bougainvillea spectabilis (B. spectabilis) flowers with yellow and pink/purple on brain oxidative stress and neuronal damage caused in rats by systemic rotenone injection. METHODS: Rotenone 1.5 mg/kg was given three times per week alone or in combination with B. spectabilis flowers extracts (25 mg or 50 mg) via the subcutaneous route for 2 weeks. Brain concentrations of the lipid peroxidation marker malondialdehyde (MDA), reduced glutathione, nitric oxide (nitrite), the pro-inflammatory cytokine interleukin-1beta (Il-1β) as well as butyrylcholinesterase, and paraoxonase-1 (PON-1) activities, were determined...
May 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28647181/rosmarinic-acid-attenuates-hepatic-fibrogenesis-via-suppression-of-hepatic-stellate-cell-activation-proliferation-and-induction-of-apoptosis
#5
Naglaa M El-Lakkany, Walaa H El-Maadawy, Sayed H Seif El-Din, Olfat A Hammam, Salwa H Mohamed, Shahira M Ezzat, Marwa M Safar, Samira Saleh
OBJECTIVE: To investigate the antifibrotic role of rosmarinic acid (RA), a natural polyphenolic compound, on HSCs activation/proliferation and apoptosis in vitro and in vivo. METHODS: The impact of RA on stellate cell line (HSC-T6) proliferation, activation and apoptosis was assessed along with its safety on primary hepatocytes. In vivo, rats were divided into: (i) normal; (ii) thioacetamide (TAA)-intoxicated rats for 12 weeks; (iii) TAA + silymarin or (iv) TAA + RA...
May 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28646435/eco-friendly-synthesis-of-silver-nanoparticles-using-green-algae-caulerpa-serrulata-reaction-optimization-catalytic-and-antibacterial-activities
#6
Eman F Aboelfetoh, Rania A El-Shenody, Mohamed M Ghobara
Stable colloidal silver nanoparticles (AgNPs) were synthesized using Caulerpa serrulata (green marine algae) aqueous extract as an efficient reducing and stabilizing agent. This method is considered to be a sustainable alternate to the more complicated chemical procedures. To achieve the optimization synthesis of AgNPs, several effects such as extract concentration, contact time, pH values, and temperature were examined. The synthesized AgNPs were characterized by UV-Vis spectroscopy, FT-IR, XRD, and HR-TEM...
July 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28645708/identification-of-major-routes-of-hiv-transmission-throughout-mesoamerica
#7
Antoine Chaillon, Santiago Avila-Ríos, Joel O Wertheim, Ann Dennis, Claudia García-Morales, Daniela Tapia-Trejo, Carlos Mejía-Villatoro, Juan M Pascale, Guillermo Porras-Cortés, Carlos J Quant-Durán, Ivette Lorenzana, Rita I Meza, Elsa Y Palou, Marvin Manzanero, Rolando A Cedillos, Gustavo Reyes-Terán, Sanjay R Mehta
BACKGROUND: Migration and travel are major drivers of the spread of infectious diseases. Geographic proximity and a common language facilitate travel and migration in Mesoamerica, which in turn could affect the spread of HIV in the region. METHODS: 6092 HIV-1 subtype B partial pol sequences sampled from unique antiretroviral treatment-naïve individuals from Mexico (40.7%), Guatemala (24.4%), Honduras (19%), Panama (8.2%), Nicaragua (5.5%), Belize (1.4%), and El Salvador (0...
June 20, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28645301/the-sternal-management-accelerated-recovery-trial-s-m-a-r-t-standard-restrictive-versus-an-intervention-of-modified-sternal-precautions-following-cardiac-surgery-via-median-sternotomy-study-protocol-for-a-randomised-controlled-trial
#8
Md Ali Katijjahbe, Linda Denehy, Catherine L Granger, Alistair Royse, Colin Royse, Rebecca Bates, Sarah Logie, Sandy Clarke, Doa El-Ansary
BACKGROUND: The routine implementation of sternal precautions to prevent sternal complications that restrict the use of the upper limbs is currently worldwide practice following a median sternotomy. However, evidence is limited and drawn primarily from cadaver studies and orthopaedic research. Sternal precautions may delay recovery, prolong hospital discharge and be overly restrictive. Recent research has shown that upper limb exercise reduces post-operative sternal pain and results in minimal micromotion between the sternal edges as measured by ultrasound...
June 23, 2017: Trials
https://www.readbyqxmd.com/read/28645257/relationship-between-nasopharyngeal-and-bronchoalveolar-microbial-communities-in-clinically-healthy-feedlot-cattle
#9
Mohamed M Zeineldin, James F Lowe, Elsbeth D Grimmer, Maria R C de Godoy, Mohamed M Ghanem, Yassein M Abd El-Raof, Brian M Aldridge
BACKGROUND: The importance of upper airway structure in the susceptibility of the lower respiratory tract to colonization with potential pathogens is well established. With the advent of rapid, high throughput, next generation sequencing, there is a growing appreciation of the importance of commensal microbial populations in maintaining mucosal health, and a realization that bacteria colonize anatomical locations that were previously considered to be sterile. While upper respiratory tract microbial populations have been described, there are currently no published studies describing the normal microbial populations of the bovine lower respiratory tract...
June 23, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28645057/effects-of-salinity-and-short-term-elevated-atmospheric-co2-on-the-chemical-equilibrium-between-co2-fixation-and-photosynthetic-electron-transport-of-stevia-rebaudiana-bertoni
#10
Sayed Hussin, Nicole Geissler, Mervat M M El-Far, Hans-Werner Koyro
The effect of water salinity on plant growth and photosynthetic traits of Stevia rebaudiana was investigated to determine its level and mechanisms of salinity tolerance. It was also attempted to assess how short-term elevated CO2 concentration would influence the boundaries and mechanisms of its photosynthetic capacity. The plants were grown in gravel/hydroponic system under controlled greenhouse conditions and irrigated with four different salinity levels (0, 25, 50 and 100 mol m(-3)NaCl). Low salinity did not significantly alter the plant fresh weight, which was substantially decreased by 67% at high salinity treatment...
June 15, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28644527/an-audit-on-technical-quality-of-root-fillings-performed-by-undergraduate-students
#11
W Fong, O Heidarifar, S Killough, M Lappin, I A El Karim
AIM: To evaluate radiographically the technical quality of root fillings performed by undergraduate dental students and to assess whether students were exposed to an appropriate endodontic case mix during their clinical training. METHODOLOGY: A retrospective audit was undertaken evaluating the clinical records of patients who underwent endodontic procedures during the period from September 2015 to June 2016 in the Dental School at Queen's University Belfast, UK...
June 23, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28644400/evaluation-of-sources-and-patterns-of-elemental-composition-of-pm2-5-at-three-low-income-neighborhood-schools-and-residences-in-quito-ecuador
#12
Amit U Raysoni, Rodrigo X Armijos, M Margaret Weigel, Patricia Echanique, Marcia Racines, Nicholas E Pingitore, Wen-Whai Li
Elemental characterization of fine particulate matter was undertaken at schools and residences in three low income neighborhoods in Quito, Ecuador. The three zones were located in the northern (Cotocollao), south central (El Camal), and south east (Los Chillos) neighborhoods and were classified as zones 1-3, respectively. Forty elements were quantified via ICP-MS analysis. Amongst the geogenic elements, the concentration of Si was the most abundant followed by S, Al, and Ca. Elements with predominantly anthropogenic sources such as Zn, V, and Ni were higher in zone 3 school followed by zone 2 and zone 1 schools...
June 23, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28643801/january-2016-extensive-summer-melt-in-west-antarctica-favoured-by-strong-el-ni%C3%A3-o
#13
Julien P Nicolas, Andrew M Vogelmann, Ryan C Scott, Aaron B Wilson, Maria P Cadeddu, David H Bromwich, Johannes Verlinde, Dan Lubin, Lynn M Russell, Colin Jenkinson, Heath H Powers, Maciej Ryczek, Gregory Stone, Jonathan D Wille
Over the past two decades the primary driver of mass loss from the West Antarctic Ice Sheet (WAIS) has been warm ocean water underneath coastal ice shelves, not a warmer atmosphere. Yet, surface melt occurs sporadically over low-lying areas of the WAIS and is not fully understood. Here we report on an episode of extensive and prolonged surface melting observed in the Ross Sea sector of the WAIS in January 2016. A comprehensive cloud and radiation experiment at the WAIS ice divide, downwind of the melt region, provided detailed insight into the physical processes at play during the event...
June 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28642197/risk-of-hepatocellular-cancer-in-hcv-patients-treated-with-direct-acting-antiviral-agents
#14
Fasiha Kanwal, Jennifer Kramer, Steven M Asch, Maneerat Chayanupatkul, Yumei Cao, Hashem B El-Serag
BACKGROUND AND AIMS: The risk of hepatocellular cancer (HCC) after sustained virological response (SVR) with direct acting antivirals (DAA) is unclear. Our aim was to examine the risk and determinants of HCC in patients cured with DAA. METHODS: We conducted a retrospective cohort study of HCV patients who were treated with DAA in any of the 129 Veterans Health Administration hospitals between 1/1/2015 and 12/31/2015. We calculated the annual incidence rates for HCC by SVR...
June 19, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28642162/ngs-panel-analysis-in-24-ectopia-lentis-patients-a-clinically-relevant-test-with-a-high-diagnostic-yield
#15
E Overwater, K Floor, D van Beek, K de Boer, T van Dijk, Y Hilhorst-Hofstee, A J M Hoogeboom, K J van Kaam, J M van de Kamp, M Kempers, I P C Krapels, H Y Kroes, B Loeys, S Salemink, C T R M Stumpel, V J M Verhoeven, E Wijnands-van den Berg, J M Cobben, J P van Tintelen, M M Weiss, A C Houweling, A Maugeri
BACKGROUND: Several genetic causes of ectopia lentis (EL), with or without systemic features, are known. The differentiation between syndromic and isolated EL is crucial for further treatment, surveillance and counseling of patients and their relatives. Next generation sequencing (NGS) is a powerful tool enabling the simultaneous, highly-sensitive analysis of multiple target genes. OBJECTIVE: The aim of this study was to evaluate the diagnostic yield of our NGS panel in EL patients...
June 19, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/28642073/synthesis-of-biogenic-ag-pd-core-shell-nanoparticles-having-anti-cancer-anti-microbial-functions
#16
Wafa I Abdel-Fattah, M M Eid, Sh I Abd El-Moez, E Mohamed, Ghareib W Ali
Biogenic Ag@Pd core-shell nanoparticles were greenly synthesized within two plant extracts aiming at enhanced anticancer/bactericidal functions. These functions were verified for the two Pd@Ag biogenic core-shell nanoparticles (BCSnp) with constant Pd to several Ag contents. BCSnp were synthesized within two extracts of Almond nuts and Black Berry fruits, four samples each, through simple, low cost and echo friendly microwave route. The BCSnp Surface Plasmon Resonance (SPR) was detected via UV/visible spectrophotometer...
June 19, 2017: Life Sciences
https://www.readbyqxmd.com/read/28641944/effect-of-antimony-oxide-on-the-shielding-properties-of-some-sodium-boro-silicate-glasses
#17
A M Zoulfakar, A M Abdel-Ghany, T Z Abou-Elnasr, A G Mostafa, S M Salem, H H El-Bahnaswy
Some sodium-silicate-boro-antimonate glasses having the molecular composition [(20) Na2O - (20) SiO2 - (60-x) B2O3 - (x) Sb2O3 (where x takes the values 0, 5 … or 20)] have been prepared by the melt quenching method. The melting and annealing temperatures were 1500 and 650K respectively. The amorphous nature of the prepared samples was confirmed by using X-ray diffraction analysis. Both the experimental and empirical density and molar volume values showed gradual increase with increasing Sb2O3 content. The empirical densities showed higher values than those obtained experimentally, while the empirical molar volume values appeared lower than those obtained experimentally, which confirm the amorphous nature and randomness character of the studied samples...
June 19, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28641143/spectroscopic-and-thermodynamic-studies-of-light-harvesting-perylenediimide-derivative-zinc-porphyrin-complex-in-aqueous-media
#18
Ahmed El-Refaey, Shaban Y Shaban, Maged El-Kemary, Mohamed E El-Khouly
Self-assembly of perylene derivative such as N,N'-bis(2(trimethylammonium iodide) ethylene)perylene-3,4,9,10-tetracarboxyldiimide (TAIPDI) can produce one-dimensional form (1D) in an aqueous media. The ability of one-dimensional TAIPDI to form light harvesting complex with water-soluble zinc porphyrin (ZnTPPS4) via the π-π and electrostatic interactions has been described. Owing to electronic interactions between the π-systems, the complex formation is accompanied by pronounced absorption spectral changes in the UV/Vis absorption bands...
June 15, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28640379/comparative-and-correlative-assessments-of-cytokine-complement-and-antibody-patterns-in-pediatric-type-1-diabetes
#19
M Abdel-Latif, A A Abdel-Moneim, M H El-Hefnawy, R G Khalil
One of the most widespread and effective environmental factors is the infection with enteroviruses (EVs) which accelerate β - cell destruction in type 1 diabetes (T1D). This study represented a comparison between diabetic EV(+) and EV- children as well as correlation analysis between autoantibodies, T1D markers, cytokines, complement activation products and anti- coxsackievirus (CV) IgG. EV RNA was detected in Egyptian children with T1D (26.2%) and healthy controls (0%). Detection of anti - CV IgG in T1D - EV(+) resulted in 64% positivity...
June 22, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28639992/use-of-index-patients-to-enable-home-based-testing-in-lesotho
#20
Abby DiCarlo, Allison Zerbe, Zachary J Peters, Koen Frederix, John P Nkonyana, Joanne E Mantell, Robert H Remien, Wafaa M El-Sadr
No abstract text is available yet for this article.
June 19, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
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