Effect of Soil Solarization and Fumigation on Productivity and Fruit Quality of Strawberry

Mohamed E. Ragab,Salah M. El-Miniawy,Mohsen S. Mohamed,Kh A. Okasha 한국원예학회 2006 한국원예학회 기타간행물 Vol.- No.-

Performance and combustion characteristics of a novel crank-rocker engine

Salah E. Mohammed,M. B. Baharom,A. Rashid A. Aziz 대한기계학회 2017 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.31 No.7

The performance and combustion characteristics of a novel internal combustion engine, called the crank-rocker, have been investigated experimentally. The engine specifications are gasoline-port injection, four-stroke, spark-ignition, and single-curved cylinder. The ignition timing was initially set at 8.6 0 CA BTDC, 1800 rpm based on a small conventional engine. The equivalence ratio, lambda (λ) was varied at rich, stoichiometric, and lean conditions. The entire tests were performed at six different engine speeds of 1800, 2000, 2200, 2400, 2600 and 2800 rpm, with each one operating at wide open throttle. The performance data such as indicated torque, indicated power, indicated specific fuel consumption, and indicated thermal efficiency were calculated. The combustion characteristics such as cylinder pressure, mass fraction burned, heat release rate, P-V diagram, and indicated mean effective pressure were also determined. The results obtained from the crank-rocker engine were compared with the experimental results obtained from the conventional engine (benchmark engine). The results showed that the indicated torque, power and thermal efficiency of crank-rocker engine is higher than normal slidercrank engine. The indicated torque and power increased by about 6.28 %, while the indicated specific fuel consumption is lower by 4.69 %. In general, the engine has similar indicated performance characteristics to the conventional engine, but the combustion characteristics differ because the peak values of the combustion pressure and heat release occur at higher crank angle ATDC. This was found to be due to the dwelling of piston at TDC. The combustion rate and mixture of the novel crank-rocker engine burned faster, resulting in shorter combustion duration and ignition delay period than the conventional slider-crank engine.

Synthesis, characterization, and in vitro antifungal activity of anionic and nonionic surfactants against crop pathogenic fungi

AHMED SALAH MAHMOUD TAWFIK,Mohamed F. Zaky,Tahany G.M. Mohammad,Hanaa A.E. Attia 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.29 No.-

Fungi have long been identified as causal agents of plant diseases. The development of plant antifungalactivity was attempted by synthesis of a new type of anionic and nonionic surfactant. The surfaceproperties were studied, including critical micelle concentration (CMC), effectiveness (pcmc), maximumsurface excess (Gmax), and minimum surface area (Amin). Free energy of micellization and adsorption wascalculated (DG8mic and DG8ads). The antifungal activity of the prepared surfactants was verified in vitro bythe poisoned food technique against eight phytopathogenic fungi: Colletotrichum dematium, Drechslerahawaiiensis, Fusarium oxysporum, Fusarium solani, Humicola fuscoatra, Pestalotia laurocerasi, Phoma spp.,and Phytophthra. The results reported that the percentage inhibition of mycelial growth increases withincreasing concentrations of the surfactant for all fungal species used. These results indicated that thesurfactant inhibited the mycelial growth of all fungal species in a dose-dependent manner. Blendsurfactants have a potential antifungal effect for the control of some phytopathogenic fungi.

Natural Fiber Reinforced Unsaturated Polyester Resin Filled with Bio-based Calcium Carbonate: Preparation and Examination

Ahmed Mohamed Sharaf,Eslam Syala,Abbas Anwar Ezzat,Salah F. Abdellah Ali,E. El-Rafey 한국섬유공학회 2022 Fibers and polymers Vol.23 No.5

Both the chicken eggshell (ES) and rice husk (RH) represent environmental, and pollution issues. Incorporatingboth of them, with minimum processing procedures, in various useful applications is a major contribution in solving suchproblems. In this research, unsaturated polyester (UP) was doped with different percentages (5-25 wt.%) of fine (ES) to formone (UP-ES) composite system. The (UP-ES) system was reinforced with a fixed 10 wt.% of (RH), which represents anagricultural waste produced in tonnage, to fabricate the second system. X-ray diffraction (XRD) analysis emerged that the(ES) is forming from calcium carbonate (CaCO3) resembling typically the mineral one. The addition of (ES) enhanced boththe mechanical characteristics of (UP) resin in terms of tensile strength, elongation %, tensile modulus, impact strength,flexural strength from 26.33 to 33.77 MPa, from 3.30 to 3.60 MPa, from 2000 to 2406.67 MPa, from 1.25 to 2.42 kJ/m², from64.93 to 75.07 MPa, and the thermal stability from 335.75 to 346.24 oC, respectively. This inclusion of (ES) also promotedboth the limiting oxygen index (LOI) and dielectric constant (εr) of (UP) from 17.25 to 23.50 % and from 6.76 to 11.02,respectively. The addition of (RH) to (ES-UP) composite, generally, gave the same attitude for the properties like what in the(ES-UP) system other than the remarkable extra-increase in the (εr). Also, (RH) elevated the water absorption (%) of (ES-UP)composite by the action of its hydrophilic nature. It is concluded that the incorporation of both (ES) and (RH) reduces thefinal cost of the composite and solves one of the great environmental disposal issues.

Toward Developing a Preventive MERS-CoV Vaccine—Report from a Workshop Organized by the Saudi Arabia Ministry of Health and the International Vaccine Institute, Riyadh, Saudi Arabia, November 14–15, 2015

Excler, Jean-Louis,Delvecchio, Christopher J.,Wiley, Ryan E.,Williams, Marni,Yoon, In-Kyu,Modjarrad, Kayvon,Boujelal, Mohamed,Moorthy, Vasee S.,Hersi, Ahmad Salah,Kim, Jerome H. U.S. Department of Health and Human Services * Cen 2016 Emerging Infectious Diseases Vol.22 No.8

<P>Middle East respiratory syndrome (MERS) remains a serious international public health threat. With the goal of accelerating the development of countermeasures against MERS coronavirus (MERS-CoV), funding agencies, nongovernmental organizations, and researchers across the world assembled in Riyadh, Saudi Arabia, on November 14–15, 2015, to discuss vaccine development challenges. The meeting was spearheaded by the Saudi Ministry of Health and co-organized by the International Vaccine Institute, South Korea. Accelerating the development of a preventive vaccine requires a better understanding of MERS epidemiology, transmission, and pathogenesis in humans and animals. A combination of rodent and nonhuman primate models should be considered in evaluating and developing preventive and therapeutic vaccine candidates. Dromedary camels should be considered for the development of veterinary vaccines. Several vaccine technology platforms targeting the MERS-CoV spike protein were discussed. Mechanisms to maximize investment, provide robust data, and affect public health are urgently needed.</P>

How to Improve Eating Behaviour during Early Childhood

Robin John Green,Gamal Samy Aly,Mohamad Saleh Miqdady,Mohamed Salah,Rola Sleiman,Hatim Mohamed Ahmed Abdelrahman,Fatima Al Haddad,Mona M. Reda,Humphrey Lewis,Emmanuel E. Ekanem,Yvan Vandenplas 대한소아소화기영양학회 2015 Pediatric gastroenterology, hepatology & nutrition Vol.18 No.1

Eating behaviour disorder during early childhood is a common pediatric problem. Many terminologies have been used interchangeably to describe this condition, hindering implementation of therapy and confusing a common problem. The definition suggests an eating behaviour which has consequences for family harmony and growth. The recent Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition does not cover the entire spectrum seen by pediatricians. Publications are substantive but level of evidence is most of the time low. This purpose of this review is to clarify terminology of eating behaviour problems during early childhood; including benign picky eating, limited diets, sensory food aversion, selective eating, food avoidance emotional disorder, pervasive refusal syndrome, tac-tile defensiveness, functional dysphagia, neophobia and toddler anorexia. This tool is proposed only to ease the clinical management for child care providers. Diagnostic criteria are set and management tools are suggested. The role of dietary counselling and, where necessary, behavioural therapy is clarified. It is hoped that the condition will make its way into mainstream pediatrics to allow these children, and their families, to receive the help they deserve.

Reduced Fertility and Fecundity among Patients with Bipolar I Disorder and Schizophrenia in Egypt

Hader Mansour,Kareem Kandil,Warda Fathi,Mai Elassy,Ibtihal Ibrahim,Hala Salah,Amal Yassin,Hanan Elsayed,Salwa Tobar,Hala El-Boraie,Ahmed Eissa,Mohamed Elhadidy,Nahed E. Ibrahim,Wafaa El-Bahaei,Vishwaj 대한신경정신의학회 2011 PSYCHIATRY INVESTIGATION Vol.8 No.3

Objective To evaluate reproduction among patients with bipolar I disorder (BP1) or schizophrenia (SZ) in Egypt. Methods BP1 patients (n=113) were compared with community based, demographically balanced controls (n=124) and SZ patients (n=79, DSM-IV). All participants were evaluated using structured interviews and corroborative data were obtained from relatives. Standard indices of procreation were included in multivariate analyses that incorporated key demographic variables. Results Control individuals were significantly more likely to have children than BP1 or SZ patients (controls 46.8%, BP1 15.9%, SZ 17.7%), but the BP1-SZ differences were non-significant. The average number of children for BP1 patients (0.37±0.9) and SZ patients (0.38±0.9) was significantly lower than for controls (1.04±1.48) (BP1 vs controls, p<0.001; SZ vs controls, p<0.001). The frequency of marriages among BP1 patients was nominally higher than the SZ group, but was significantly lower than controls (BP1: 31.9% SZ: 27.8% control: 57.3%). Even among married individuals, BP1 (but not SZ) patients were childless more often than controls (p=0.001). The marital fertility, i.e., the average number of children among patients with conjugal relationships for controls (1.8±1.57) was significantly higher than BP1 patients (1.14±1.31, p=0.02), but not significantly different from SZ patients (1.36±1.32, p=0.2). Conclusion Selected reproductive measures are significantly and substantially reduced among Egyptian BP1 patients. The reproductive indices are similar among BP1 and SZ patients, suggesting a role for general illness related variables. Regardless of the cause/s, the impairment constitutes important, under-investigated disability. Objective To evaluate reproduction among patients with bipolar I disorder (BP1) or schizophrenia (SZ) in Egypt. Methods BP1 patients (n=113) were compared with community based, demographically balanced controls (n=124) and SZ patients (n=79, DSM-IV). All participants were evaluated using structured interviews and corroborative data were obtained from relatives. Standard indices of procreation were included in multivariate analyses that incorporated key demographic variables. Results Control individuals were significantly more likely to have children than BP1 or SZ patients (controls 46.8%, BP1 15.9%, SZ 17.7%), but the BP1-SZ differences were non-significant. The average number of children for BP1 patients (0.37±0.9) and SZ patients (0.38±0.9) was significantly lower than for controls (1.04±1.48) (BP1 vs controls, p<0.001; SZ vs controls, p<0.001). The frequency of marriages among BP1 patients was nominally higher than the SZ group, but was significantly lower than controls (BP1: 31.9% SZ: 27.8% control: 57.3%). Even among married individuals, BP1 (but not SZ) patients were childless more often than controls (p=0.001). The marital fertility, i.e., the average number of children among patients with conjugal relationships for controls (1.8±1.57) was significantly higher than BP1 patients (1.14±1.31, p=0.02), but not significantly different from SZ patients (1.36±1.32, p=0.2). Conclusion Selected reproductive measures are significantly and substantially reduced among Egyptian BP1 patients. The reproductive indices are similar among BP1 and SZ patients, suggesting a role for general illness related variables. Regardless of the cause/s, the impairment constitutes important, under-investigated disability.

How to Improve Eating Behaviour during Early Childhood

Green, Robin John,Samy, Gamal,Miqdady, Mohamad Saleh,Salah, Mohamed,Sleiman, Rola,Abdelrahman, Hatim Mohamed Ahmed,Al Haddad, Fatima,Reda, Mona M.,Lewis, Humphrey,Ekanem, Emmanuel E.,Vandenplas, Yvan The Korean Society of Pediatric Gastroenterology 2015 Pediatric gastroenterology, hepatology & nutrition Vol.18 No.1

Eating behaviour disorder during early childhood is a common pediatric problem. Many terminologies have been used interchangeably to describe this condition, hindering implementation of therapy and confusing a common problem. The definition suggests an eating behaviour which has consequences for family harmony and growth. The recent Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition does not cover the entire spectrum seen by pediatricians. Publications are substantive but level of evidence is most of the time low. This purpose of this review is to clarify terminology of eating behaviour problems during early childhood; including benign picky eating, limited diets, sensory food aversion, selective eating, food avoidance emotional disorder, pervasive refusal syndrome, tactile defensiveness, functional dysphagia, neophobia and toddler anorexia. This tool is proposed only to ease the clinical management for child care providers. Diagnostic criteria are set and management tools are suggested. The role of dietary counselling and, where necessary, behavioural therapy is clarified. It is hoped that the condition will make its way into mainstream pediatrics to allow these children, and their families, to receive the help they deserve.