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Search Results: 1 - 10 of 400732 matches for " Hedaya M. Hendam "
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Surgical Approaches to Large Peripheral Nerve Sheets Tumors  [PDF]
Hedaya M. Hendam, Hatem M. El Samouly, Hamdy M. Behairy
Open Journal of Modern Neurosurgery (OJMN) , 2018, DOI: 10.4236/ojmn.2018.81003
Abstract: Peripheral nerve sheath tumors (PNSTs) are not rare tumors. Its sound management is complete surgical excision. The aim of this study was to describe clinical presentation, accuracy of different investigations and ideal surgical approaches in relation to outcomes. The study is a prospective and included 26 surgically treated large PNSTs in 22 patients operated through different surgical approaches according to the site of the tumors. The fellow up period was 6 - 60 months. The mean age was 41.8 years, 9 were males and 13 were females. The common presentations were pain in 12 lesions, swelling in 8 lesions, neural deficits in 4 lesions and positive Tinel’s test in 2 lesions. These lesions were excised through 6 surgical approaches. Histopathological examination showed 20 benign and 6 malignant lesions. Five cases of malignant peripheral nerve sheet tumors (MPNSTs) had local recurrent, 4 cases had distant metastasis, 4 cases received chemotherapy and radiotherapy, and 4 cases were died in the postoperative fellow up period. It was concluded that surgical approaches to the PNSTs, depends on their locations. Adequate exposure with minimal dissection minimized the neurological deficit and decreased rate of local recurrence.
Mini Thoracotomy Approach to Upper Thoracic Spine  [PDF]
Hedaya Hendam, Hatem El-Samouly, Hamdy M. Behairy, Medhat Noaman, Gamal Abd Elshafy
Neuroscience & Medicine (NM) , 2018, DOI: 10.4236/nm.2018.91002
Abstract: Upper thoracic spine lesions are characterized by delayed diagnosis due to nonspecific symptoms and its anterior aspect (T1 - T4) is difficult to be approached surgically. This retrospective clinical study was done to assess the efficacy of mini thoracotomy approach in management of these lesions. We studied 14 cases with upper thoracic spine different pathological lesions at levels (T1 - T4). These lesions were indicated for anterior approach surgery. Radiological assessment included plain X-ray, MRI and CT scan thoracic spine. The anaesthesia was specifically selective intubation and unilateral ventilation. All patients were operated upon through mini inter-costal thoracotomy approach (left sided in 13 patients and right sided in 1patient). Out of 14 patients there were 7 males and 7 females. The age range was 20 - 55 years (mean 38.7 years). Preoperative symptoms included vague nonspecific upper thoracic pain in 11 patients, lower limbs weakness in 6 patients, sphincteric disturbance in 5 patients, upper thoracic kyphotic deformity in 4 patients, severe brachialgia in 3 patients and neck pain in 2 cases. The operative time was ranged from 90 - 210 minutes (mean 152 m). Blood loss ranged from 250 to 750 cc (mean 464 cc). Chest tube drainage was inserted in all patients. There were no intra-operative or post-operative surgically related complications and no patients needed ICU admission. The lesions were neoplasms in 8 patients, traumatic fracture dislocation in 3 cases, tuberculous spondylodiscitis in 2 cases and degenerative disc prolapse in 1 case. All patients improved post-operative as regard their pre-operative complaints except one patient. During the follow up period, no mortality was recorded. In conclusion, mini thoracotomy approach seems to be ideal only for patients with mono- or bi-segmental pathology involving the upper thoracic spine.
Satisfaction of physicians and midwives participating in the rural family physician and insurance scheme with the plan in Isfahan province, 2010
Hedaya Asgari,Maryam Kheirmand,Mohsen Rohani,Samaneh Sadoughi
Journal of School of Public Health and Institute of Public Health Research , 2012,
Abstract: Background and Aim: Job satisfaction is one of the most important factors in maintenance of a professional person and the job success, increasing the personal efficiency and the quality of services. On the other hand, it is a tool in the hands of managers in order to maintain the staff in their jobs. The aim of this descriptive study was to investigate the satisfaction of physicians and midwives participating in the family physician scheme with the plan. Materials and Methods: The study population was made up of 221 physicians and 144 midwifes. The tool was an author made questionnaire certified by experts as a standard, valid and reliable scale via content validity measurements through a pilot study. Results: The average satisfaction of physicians and midwives was 44.34% while the highest satisfaction was 65% with the location of services and the lowest was 30.6% with the financial issues. In relation to the financial affairs, physicians were more dissatisfied than midwives, so satisfactions were increased by the increase in the amount of salaries. Conclusion: Over 4 years of implementation of family physician plan, the physicians and midwives satisfaction was shown to be still low. It is necessary to consider re-programming in the scheme in order to increase the amount of payments and create more motivational factors for physicians as well as to reduce working hours for midwives and establish appropriate levels of payments for them.
Distribution of 14C into biochemical components of soybean exposed to water deficit and potassium
Hedaya A. Kamel,Magdi T. Abdelhamid,Mona G. Dawood
Communications in Biometry and Crop Science , 2010,
Abstract: Water deficit is the primary limiting factor for successful yield of soybean (Glycine max L.) around the world, depending on its severity and duration, and has variable effects on several metabolic processes. Therefore, a pot experiment was conducted in a wire house at the National Research Centre, Cairo, Egypt, to examine the interactive effects of two levels of potassium fertilizer and water deficit on the distribution of 14C into biochemical components (ethanol soluble compounds, oil and protein) of three Japanese soybean genotypes, non-nodulating (NN) (En 1282), nodulating (N) (Eneri) and super-nodulating (SN) (En-b0-1). The potassium (K) fertilizer levels were 25 and 150 mg K2O kg soil-1. Sixty-five days after sowing (pod filling stage), soil moisture (SM) for plants was maintained at 80% FWC for control (WW) and no water was added considered as water deficit (WD). Plant leaves were collected at 0 (at the end of exposure time), 24, 48, and 72h for measuring photosynthetic activity, total lipids and protein. The highest amount of 14C was found in soluble carbohydrates after 24h in the three genotypes followed by oil and protein. K at a high level significantly increased 14C fixation by 20.4 and 26.8 % in non-nodulating and normal nodulating genotypes, respectively. High K had no effect on the super-nodulating genotype. The super-nodulating genotype was characterized by lower ability for 14C fixation than normally nodulating soybean at both K levels. K inhibited the detrimental effect of drought stress on photosynthesis, and this might be due to the role of K in CO2 fixation.
Birth Defects in Gaza: Prevalence, Types, Familiarity and Correlation with Environmental Factors
Awny Naim,Hedaya Al Dalies,Mohammed El Balawi,Eman Salem,Kholud Al Meziny,Raneem Al Shawwa,Roberto Minutolo,Paola Manduca
International Journal of Environmental Research and Public Health , 2012, DOI: 10.3390/ijerph9051732
Abstract: This is the first report of registration at birth, and of incidence of major structural birth defects (BD) obtained in Gaza at Al Shifa Hospital, where 28% of total births in Gaza Strip occur. Doctors registered 4,027 deliveries, with a protocol comprehensive of clinical, demographic, kin and environmental questions. Prevalence of BD is 14/1,000, without association with intermarriage or gender of the child. Prevalence of late miscarriages and still births are respectively 23.3/1,000 and 7.4/1,000, and of premature births 19.6/1,000. Couples with a BD child have about 10 times higher frequency of recurrence of a BD in their progeny than those with normal children, but none of their 694 siblings and only 10/1,000 of their 1,423 progeny had BD, similar to the frequency in general population. These data suggest occurrence of novel genetic and epigenetic events in determination of BD. Children with BD were born with higher frequency ( p < 0 001) in families where one or both parents were under “white phosphorus” attack, that in the general population. Bombing of the family home and removal of the rubble were also frequently reported by couples with BD occurrence. These data suggests a causative/favoring role of acute exposure of parents to the weapons-associated contaminants, and/or of their chronic exposure from their persistence in the environment on the embryonic development of their children.
Study of Duct Characteristics Deduced from Low Latitude Ground Observations of Day-Time Whistler at Jammu  [PDF]
M. Altaf, M. M. Ahmad
International Journal of Astronomy and Astrophysics (IJAA) , 2013, DOI: 10.4236/ijaa.2013.33032
Abstract:

Propagation characteristics of low latitude whistler duct characteristics have been investigated based on day-time measurements at Jammu. The morphogical characteristics of low latitude whistlers are discussed and compared with characteristics of middle and high latitude whistlers. The Max. electron density (Nm) at the height of the ionosphere obtained from whistler dispersion comes out to be higher than that of the background which is in accordance with the characteristics of whistler duct. The equivalent width is found to be close to the satellite observations and the characteristics of whistler duct in low latitude ionosphere are similar to those in middle and high latitude ionosphere. The width of ducts estimated from the diffuseness of the whistler track observed during magnetic storm is found to lie in the range of 50 - 200 Km.

Review Article: Immobilized Molecules Using Biomaterials and Nanobiotechnology  [PDF]
Magdy M. M. Elnashar
Journal of Biomaterials and Nanobiotechnology (JBNB) , 2010, DOI: 10.4236/jbnb.2010.11008
Abstract: Immobilized molecules using biomaterials and nanobiotechnology is a very interesting topic that touching almost all aspects of our life. It uses the sciences of biology, chemistry, physics, materials engineering and computer science to develop instruments and products that are at the cutting edge of some of today’s most promising scientific frontiers. In this review article, the author based on his experience in this arena has tried to focus on some of the supports for im-mobilization; the most important molecules to be immobilized such as DNA, cells, enzymes, metals, polysaccharides, etc and their applications in medicine, food, drug, water treatment, energy and even in aerospace. He specified a special section on what is new in the arena of supports and technologies used in enzyme immobilization and finally a recommendation by the author for future work with a special attention to up-to-date references.
Using of the generalized special relativity (GSR) in estimating the neutrino masses to explain the conversion of electron neutrinos  [PDF]
M. H. M. Hilo
Natural Science (NS) , 2011, DOI: 10.4236/ns.2011.34044
Abstract: In this work the Generalized Special Relativity (GSR) is utilized to estimate masses of some elementary particles such as, neutrinos. These results are found to be in conformity with experimental and theoretical data. The results obtained may explain some physical phenomena, such as, conversion of neutrinos from type to type when solar neutrino reaches the Earth.
Postischemic Lower Extremity Wounds Treated with and without Negative Pressure Dressing  [PDF]
Naz?mmü?
Surgical Science (SS) , 2012, DOI: 10.4236/ss.2012.37075
Abstract: Background: Vacuum-assisted dressing is a noninvasive closure system of the wound, which makes localized and controlled negative pressure. Its mechanical tension reduces edema, stimulates granulation tissue formation and angiogenesis, and prepares the wound bed for closure. In this study, a patient has been presented, who suffered from serious lower extremity wounds due to arterial emboli, one of her wounds has been treated with vacuum-assisted dressing and the other with conventional dressing to evaluate the efficacy of vacuum-assisted dressing in acute ischemic wounds. Methods: A 65-year-old female patient was admitted to the emergency clinic, due to complaint of severe pain in her right lower extremity which suggested an acute arterial occlusion. She immediately underwent an embolectomy operation; however, a few days later, severe ischemia on the leg and foot became appearant. All of the necrosis was sharply debrided under sterile conditions in the operating room, and then lower leg wound was covered with vacuum-assisted dressing, also calcaneal wound was dressed with silver sulphadiazine. Results: Eighteen days after the first dressing with negative pressure, distal leg wound became ready for closure, whereas, enough granulation tissue over the calcaneal area developed merely thirty-four days later. Calcaneal wound closed spontaneously within fifty-three days. Conclusions: When dealing with this experience, using the negative pressure dressing in patient with severe lower limb wounds following arterial emboli, accelerates wound healing by means of developing the granulation tissue, and rapidly prepares the wound for closure, so it may reduce the risk of amputation.
Laplace Transform Method for Unsteady Thin Film Flow of a Second Grade Fluid through a Porous Medium  [PDF]
M. Ali, M. Awais
Journal of Modern Physics (JMP) , 2014, DOI: 10.4236/jmp.2014.53017
Abstract:

In this article, we have effectively used the Numerical Inversion of Laplace transform to study the time-dependent thin film flow of a second grade fluid flowing down an inclined plane through a porous medium. The solution to the governing equation is obtained by using the standard Laplace transform. However, to transform the obtained solutions from Laplace space back to the original space, we have used the Numerical Inversion of Laplace transform. Graphical results have been presented to show the effects of different parameters involved and to show how the fluid flow evolves with time.

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