Md Tarek Rahman - Academia.edu (original) (raw)
Papers by Md Tarek Rahman
GSC Advanced Research and Reviews, 2020
Egypt is one of the countries that depend on the export of vegetables and fruits to European Unio... more Egypt is one of the countries that depend on the export of vegetables and fruits to European Union countries. It follows the procedures imposed by those countries from the organized RASFF that sets special conditions for the quality of those products. Some of the restrictions set by RASFF are concerned with pesticide residues in vegetables and fruits. In this study, data on Egyptian exports of vegetables tracked from the RASFF database organized from 2015 to 2019. The results showed that, about 52 samples banned from the Egyptian exports of vegetables during the period from 2015 to 2019 were due to the high levels of pesticide residues viz: the maximum residues limits .The highest frequent samples under study recorded in the year 2015 at 46.15%, followed by year 2016 and 2017 reaching 21.5%. While the lowest recorded, years were 2018-2019 (5.77 and 3.85 %), respectively. Twenty-four active ingredients recorded in the samples under study. The most detected pesticide groups were insec...
Applied Optics, 2019
A compact polarization beam splitter based on a gold-filled photonic crystal fiber with a square ... more A compact polarization beam splitter based on a gold-filled photonic crystal fiber with a square lattice is proposed. The full vector finite element method is used to design and characterize the proposed ultra-compact and ultra-broadband polarization splitter. The plasmonic plays an important role in order to achieve an ultra-short length of 56.33 µm with a high extinction ratio of 132.92 dB at the wavelength of 1.55 µm. It can ensure an ultra-broad bandwidth of 530 nm, from 1225 to 1755 nm, covering all the communication bands with an extinction ratio better than 20 dB. The proposed polarization splitter may be a promising candidate in communication due to its ultra-short length and ultra-broad bandwidth.
Egyptian Academic Journal of Biological Sciences. A, Entomology, 2017
Liriomyza trifolii (Burg.) Tetranychus urticae (Koch) Efficiency Abamectin pesticide residues hal... more Liriomyza trifolii (Burg.) Tetranychus urticae (Koch) Efficiency Abamectin pesticide residues half-life values (RL 50) pre-harvest interval (PHI) Experiments were conducted in the experimental Research Station, Qaha, Qalubiya Governorate on the autumn of 2015 and 2016.The current study aimed to evaluation the number , duration generation and efficiency of abamectin against Bemisia tabaci (Genn.), Liriomyza. trifolii (Burg.), and Tetranychus urticae (Koch) infesting green bean (Phaseolus vulgaris) under field condition and residue determination of abamectin in green leaves and green pods. During the 2015 season, the whitefly, B. tabaci recorded two generations, but in the 2016 season, they were three generations. In ad dation, the leaf miner, L. trifoliiwas recorded three generations during two seasons 2015 and 2106. In casered spider, T. urticae gave three generations in the 2015 season but in the second season gave only two generations. Especially, efficiency of Abamectin the results revealed that the highest percentage of reduction of Whitefly, B. tabaci after 10 days (64.64 %) and the lowest reduction percentage (22.32%) after 21 day. L. trifolii, the highest percentage of reduction was after 21 days (28.64%) and the lowest percentage of reduction (18.17%) after 1 day. In case of T. urticae,the obtained data indicated that the highest percentage of reduction of Spider mite after 3 days was (44.04%) while after 21 days was the lowest percentage of reduction (10.33%).Studying of the Abamectin residues on and in green leaves, unwashed green pods, washed green pods and boiling green pods recorded 7.98 ppm, 4.2ppm , 0.5 ppm and not detectable after two hours from spraying , washing processing cause dissipation 88.09 %loss from washed pods but in case boiling processing removed each Abamectin residues. The half-life measured in centuries Abamectin green beans leaves and unwashed green bean pods recorded 22.73 and 17.4 hours, respectively. The interval Preharvest (PHI) of Abamectin on the green beans pods for 17 day. Recommendation :The paper recommended by abamectin spray on Phaseolus vulgaris against Bemisia tabaci (Genn.), Liriomyza trifolii (Burg.), with prevent green bean pods collected before 17 days from spraying.
Egyptian Academic Journal of Biological Sciences, F. Toxicology & Pest Control, 2014
The journal of Toxicology and pest control is one of the series issued twice by the Egyptian Acad... more The journal of Toxicology and pest control is one of the series issued twice by the Egyptian Academic Journal of Biological Sciences, and is devoted to publication of original papers related to the interaction between insects and their environment. The goal of the journal is to advance the scientific understanding of mechanisms of toxicity. Emphasis will be placed on toxic effects observed at relevant exposures, which have direct impact on safety evaluation and risk assessment. The journal therefore welcomes papers on biology ranging from molecular and cell biology, biochemistry and physiology to ecology and environment, also systematics, microbiology, toxicology, hydrobiology, radiobiology and biotechnology. www.eajbs.eg.net Provided for non-commercial research and education use. Not for reproduction, distribution or commercial use.
Journal of Productivity and Development, 2008
Journal of Food Studies, 2019
Domestic, hospital and industrial wastes are major generators of heavy metals. These wastes added... more Domestic, hospital and industrial wastes are major generators of heavy metals. These wastes added to those found in nature pollute the aquatic environment through the discharge. Heavy metals are toxic to living organisms. They accumulate in these beings. Humans get intoxicated by ingesting fish species contaminated by heavy metals. To evaluate the risk of intoxication of humans, it is proposed to determine the mercury, lead and cadmium content of fish and shellfish processed in Senegal. The contamination level of mercury content is determined by the DMA 80. The lead and cadmium content in the species is made by atomic absorption spectrophotometry (AAS). The results obtained show that among the metals measured, lead has the highest content in all species. This is due to its abundance in the waste. Lead is more concentrated in species that live on the bottom. Large species concentrate high levels of mercury due to accumulation and biomagnification. Cadmium is the most concentrated in ...
Canadian Journal of Clinical Nutrition, 2017
Objective: This study aimed to assess the magnitude of malnutrition among pre-school children in ... more Objective: This study aimed to assess the magnitude of malnutrition among pre-school children in Minia district, and its impact on their cognitive performance. Subjects and Methods: This is a cross sectional community based study that was carried among preschool children in El-Minia district. Preschoolers were recruited from randomly selected public schools with a kindergarten from various rural and urban areas. The sample size was 288 children age ranged between 4 years (48 months) to below 7 years (83 months). Data were collected by an aided questionnaire which included socio demographic, dietary pattern and food frequency. The nutritional status was assessed by anthropometric measurements. The Stanford-Binet Intelligence Test, Arabic edition 4 (SBITA) was used to measure the intelligence quotient (IQ). Results: 288 children were studied, (18.8%) of children are overweight, (7.6%) are obese, and only (2.1%) are wasted; according to BMI-for-age Zscore, (28.8%) are at risk of stunting and only (9.4%) are stunted according to Height-for-age Z-score. IQ score was significantly higher among children from urban region (93.6±6.1), children whose fathers, mothers education is university and above (93.9±6.4), (94.2±6.6) respectively, children whose mothers occupation is professional work (94.2±6.4), Mean IQ score was significantly lower among children whose mothers use margarine in cooking (90.8±5.9), while the mean I.Q. score was significantly higher in those who take supplementary vitamins and minerals regularly (98.3±6.6). Conclusion: Proper environmental condition (including proper nutrition, parent’s education and socio-economic standards) were crucial for cognitive and intellectual development of the studied preschool children. It is important to intervene early by nutrition education message to mothers about healthy feeding practices.
Food and Public Health, 2014
This study presents the evaluation of aflatoxins (B1, B2, G1, and G2) and carbamate pesticide con... more This study presents the evaluation of aflatoxins (B1, B2, G1, and G2) and carbamate pesticide contamination in 44 samples of bee honey were locally produced, in Egypt and other countries (Kuwait,
Journal of lasers in medical sciences, 2015
Introduction Low back pain (LBP) is a common disabling musculoskeletal disorder that is highly pr... more Introduction Low back pain (LBP) is a common disabling musculoskeletal disorder that is highly prevalent in the general population. LBP affects 60%-80% of individuals at some point in their lives, and most episodes of LBP resolve within weeks. However, LBP is also recurrent and chronic. Moreover, the costs of LBP have been escalating over the past 25 years. 1 Physical therapy modalities are utilized to ameliorate pain and improve physical function in patients with LBP. Modalities include, but are not limited to, therapeutic exercises, transcutaneous electrical nerve stimulation, electrical stimulation, thermal modalities, low level laser therapy (LLLT), acupuncture, yoga and manipulation. 2-9 Despite the wide variety of intervention options, physical therapy management of LBP might be still far from optimal. Monochromatic infrared photo energy (MIPE) and LLTT are relatively new forms of light energy used to manage LBP. The monochromatic photo energy delivers MIPE with a wavelength of 890 nm. 10 The monochromatic light is emitted by an array of gallium aluminum arsenide diodes that are placed in the target skin. MIPE was used to decrease pain in diabetic peripheral neuropathy, knee osteoarthritis and restless leg syndrome. 11-13 Researchers did not investigate intensively on using the MIPE in patients with musculoskeletal disorders and LBP. LLLT is another form of light energy used in managing LBP. It is a noninvasive, monochromatic electromagnetic highly concentrated light beam and has a power output of less than 1 W/cm. 2,14 LLLT has been used in various neuro-musculoskeletal disorders; however, its effectiveness is controversial. 15 Some researchers suggested that it may relieve pain in temporomandibular disorders, shoulder myofascial pain syndrome and knee osteoarthritis. 16-18 There has been a controversy about its effectiveness in LBP. 19-20 Also, there may be limited evidence about the effectiveness of MIPE and LLLT on chronic LBP. The aim of the present study was to evaluate the short-term effectiveness of two modalities in the treatment of chronic LBP: MIPE and LLLT. Methods Design This study was a randomized trial with participants randomly assigned to one of two treatment groups: (1) group 1 received the MIPE and therapeutic exercises or (2) group 2 received LLLT and therapeutic exercises. The examiner made group comparisons at the initial visit and after 6 weeks. The duration of the interventions was 6 weeks per participant, and each participant received 2 sessions per week.
Agricultural Research Journal, 2015
The analyses of 44 samples of honey, produced in China, Egypt, Ethiopia, Italy, Kuwait, Libya, Sa... more The analyses of 44 samples of honey, produced in China, Egypt, Ethiopia, Italy, Kuwait, Libya, Saudi Arabia, Slovenia, Turkey, Ukraine, and USA during 2012–2013, were carried out to detect the levels of essential and toxic metal elements (arsenic, cadmium, copper, iron, mercury, lead, selenium and zinc) using Solar M Atomic Absorption Spectrophotometer. Arsenic, mercury and selenium were determined by hydride generation technique.
Vita. Thesis (Ph. D.)--University of Toronto, 1978. Includes bibliographical references (leaves 1... more Vita. Thesis (Ph. D.)--University of Toronto, 1978. Includes bibliographical references (leaves 127-136). Microfiche of typescript.
The safety of 44 samples of bee honey locally produced in (China, Egypt, Ethiopia, Italy, Kuwait,... more The safety of 44 samples of bee honey locally produced in (China, Egypt, Ethiopia, Italy, Kuwait, Libya, Saudi Arabia, Slovenia, Turkey, Ukraine, and USA during 2012–2013 were explored to detect the levels of essential and toxic metals (As, Cd, Cu, Fe, Hg, Pb, Se, Zn) in these bee honey samples using Atomic Absorption Spectrometry. Arsenic, mercury, and selenium were determined by hydride generation technique. Determination of the other elements was done using flame atomic absorption spectrometry. The recovery percentage of the found results ranged between 96% and 103%. All collected samples were free from any detectable Pb. The levels of concentrations of these metals in the honey samples of the selected countries were within the allowed limits except the bee honey groups of Kuwait which violated the maximum allowed zinc limits.
A total of 144 samples were collected from five local companies i.e. (I, II, III, IV and V) durin... more A total of 144 samples were collected from five local companies i.e. (I, II, III, IV and V) during January 2007 till December 2007 .Data showed that, 22.91% of collected samples of chosen medicinal plants were contaminated with pesticides residues, while 3.47% of total samples were violated .Highest percentages of studied pesticides residues were detected in karkade and anise, while chamomile was the least contaminant commodity. The violated rate for pesticides contamination was for karkade and anise respectively, while all samples of caraway, chamomile and fenugreek were under MRLs.
Monitoring of heavy metal levels in some herbs and medicinal plants were conducted in Egypt durin... more Monitoring of heavy metal levels in some herbs and medicinal plants were conducted in Egypt during 2011. A total of 60 herbal samples were collected at random from local markets of nine governorates and five companies. Heavy metal contents in the collected samples, viz: Pb, Cd, Zn, Cu, Mn and Fe were found at different levels. The highest mean levels of the metals were found in unpacked samples, while lower concentrations were found in the packed samples. Atomic absorption spectrophotometry was used for the identification and determination of the heavy metals, which were quantitively determined as mg/kg in the collected samples
IEEE Power Engineering Review, 1984
ABSTRACT Aim: This study was conducted to identify the magnitude of undernutrition and to determi... more ABSTRACT Aim: This study was conducted to identify the magnitude of undernutrition and to determine the associated risk factors among elderly populations in rural Minia, Egypt. Subjects and methods: A cross sectional study was conducted on 350 elderly chosen by systematic random sample in the period from December 2011 till May 2012. An interview administered questionnaire about demographic characteristics of elderly subjects and Mini Nutritional Assessment (MNA) were carried out. Results: Based on MNA score, 38.3% of participated elderly have malnutrition or are at risk of malnutrition. Elderly females were significantly more likely to be affected by malnutrition than males (9.8% vs 6.6%). Nearly 38% of persons ≥ 80 years were malnourished vs 5.8% of persons in age group 60-69 years (p˂0.001). Malnutrition was higher among elderly persons who had chronic and acute disease. Conclusion: This study revealed that the percentage of malnutrition and malnutrition risk in this elderly group were 8.6% and 29.7% respectively, with higher percentages in females. These results highlight the need to screen and monitor elderly people and to involve families in the proper nutritional care of elderly.
World Journal of Cardiovascular Diseases, 2015
Objective: Clopidogrel therapy is the standard of care in patients with unstable angina. However,... more Objective: Clopidogrel therapy is the standard of care in patients with unstable angina. However, a percentage of subjects are nonresponders to clopidogrel and this leads to increased adverse outcome. On the other way round, some responsive patients are exposed to bleeding complications. Detection of both in daily practice is important in order to tailor the treatment protocol. In this study we aimed to estimate the cutoff value of mean platelet volume (MPV) for both platelet responsiveness and bleeding risks. Methods: The study was planned as a prospective cohort study. A total number of 230 patients admitted to our CCU with unstable angina over a period of one year (from June 2013 to May 2014) were enrolled. Exclusion criteria were: severe anemia, thrombocytopenia, myelodysplastic syndrome, coagulopathy and recent blood transfusion. In all patients clopidogrel was initially started and maintained during the hospital stay. Blood (2 ml) was collected in dipotassium EDTA tubes from all patients on the first day of admission by a clean puncture. Samples for MPV analysis were drawn on admission, and analyzed within 1 hour of admission after sampling by Beckman Caulter LH 780 Analyzer. Grouping was then done according to MPV of the patients into group (I) who had a low MPV less than or equal to 7.00 fl, and group (II) with MPV equal to or higher than 9.00 fl. Demographical and clinical variables of the patients were recorded. Routine laboratory parameters were also recorded. Clinical manifestations during the admission period were meticulously reported. Major complications as bleeding or, urgent need for percutaneous coronary intervention (PCI) were also studied. Results: Among the 230 patients analyzed, 175 patients (76%) were found to have MPV ≤7.00 fl (group (I)) and 55 patients (24%) had MPV ≥9.00 fl (group (II)) with mean ± SD MPV (8.4 ± 1.5 fl, vs 11.7 ± 1.2 fl respectively) (p < 0.001). Observation of clinical course during admission period revealed a statistically more significant clinical deterioration in group (II) than group (I) and the presence of more frequent AMI cases in group (II) having a high MPV. A high cutoff value of 9.7 fl for MPV was detected in prediction of clopidogrel nonresponsiveness (group (II)) with a sensitivity of 78.2% and specificity of 66.8%, and a low cutoff value for bleeding tendency lower than 6.3 fl was detected in group (I) with a sensitivity of 71.4% and specificity of 62.5%. Conclusion: This study showed that MPV can be used as a simple bedside predictor for detection of clopidogrel response in patients with T. M. Abdel-Rahman 33 unstable angina. And a cutoff value for both platelet responsiveness and risk of bleeding is now reached. This may lead to enhancement in our decision for early intervention and attention for bleeding risk during clopidogrel therapy.
GSC Advanced Research and Reviews, 2020
Egypt is one of the countries that depend on the export of vegetables and fruits to European Unio... more Egypt is one of the countries that depend on the export of vegetables and fruits to European Union countries. It follows the procedures imposed by those countries from the organized RASFF that sets special conditions for the quality of those products. Some of the restrictions set by RASFF are concerned with pesticide residues in vegetables and fruits. In this study, data on Egyptian exports of vegetables tracked from the RASFF database organized from 2015 to 2019. The results showed that, about 52 samples banned from the Egyptian exports of vegetables during the period from 2015 to 2019 were due to the high levels of pesticide residues viz: the maximum residues limits .The highest frequent samples under study recorded in the year 2015 at 46.15%, followed by year 2016 and 2017 reaching 21.5%. While the lowest recorded, years were 2018-2019 (5.77 and 3.85 %), respectively. Twenty-four active ingredients recorded in the samples under study. The most detected pesticide groups were insec...
Applied Optics, 2019
A compact polarization beam splitter based on a gold-filled photonic crystal fiber with a square ... more A compact polarization beam splitter based on a gold-filled photonic crystal fiber with a square lattice is proposed. The full vector finite element method is used to design and characterize the proposed ultra-compact and ultra-broadband polarization splitter. The plasmonic plays an important role in order to achieve an ultra-short length of 56.33 µm with a high extinction ratio of 132.92 dB at the wavelength of 1.55 µm. It can ensure an ultra-broad bandwidth of 530 nm, from 1225 to 1755 nm, covering all the communication bands with an extinction ratio better than 20 dB. The proposed polarization splitter may be a promising candidate in communication due to its ultra-short length and ultra-broad bandwidth.
Egyptian Academic Journal of Biological Sciences. A, Entomology, 2017
Liriomyza trifolii (Burg.) Tetranychus urticae (Koch) Efficiency Abamectin pesticide residues hal... more Liriomyza trifolii (Burg.) Tetranychus urticae (Koch) Efficiency Abamectin pesticide residues half-life values (RL 50) pre-harvest interval (PHI) Experiments were conducted in the experimental Research Station, Qaha, Qalubiya Governorate on the autumn of 2015 and 2016.The current study aimed to evaluation the number , duration generation and efficiency of abamectin against Bemisia tabaci (Genn.), Liriomyza. trifolii (Burg.), and Tetranychus urticae (Koch) infesting green bean (Phaseolus vulgaris) under field condition and residue determination of abamectin in green leaves and green pods. During the 2015 season, the whitefly, B. tabaci recorded two generations, but in the 2016 season, they were three generations. In ad dation, the leaf miner, L. trifoliiwas recorded three generations during two seasons 2015 and 2106. In casered spider, T. urticae gave three generations in the 2015 season but in the second season gave only two generations. Especially, efficiency of Abamectin the results revealed that the highest percentage of reduction of Whitefly, B. tabaci after 10 days (64.64 %) and the lowest reduction percentage (22.32%) after 21 day. L. trifolii, the highest percentage of reduction was after 21 days (28.64%) and the lowest percentage of reduction (18.17%) after 1 day. In case of T. urticae,the obtained data indicated that the highest percentage of reduction of Spider mite after 3 days was (44.04%) while after 21 days was the lowest percentage of reduction (10.33%).Studying of the Abamectin residues on and in green leaves, unwashed green pods, washed green pods and boiling green pods recorded 7.98 ppm, 4.2ppm , 0.5 ppm and not detectable after two hours from spraying , washing processing cause dissipation 88.09 %loss from washed pods but in case boiling processing removed each Abamectin residues. The half-life measured in centuries Abamectin green beans leaves and unwashed green bean pods recorded 22.73 and 17.4 hours, respectively. The interval Preharvest (PHI) of Abamectin on the green beans pods for 17 day. Recommendation :The paper recommended by abamectin spray on Phaseolus vulgaris against Bemisia tabaci (Genn.), Liriomyza trifolii (Burg.), with prevent green bean pods collected before 17 days from spraying.
Egyptian Academic Journal of Biological Sciences, F. Toxicology & Pest Control, 2014
The journal of Toxicology and pest control is one of the series issued twice by the Egyptian Acad... more The journal of Toxicology and pest control is one of the series issued twice by the Egyptian Academic Journal of Biological Sciences, and is devoted to publication of original papers related to the interaction between insects and their environment. The goal of the journal is to advance the scientific understanding of mechanisms of toxicity. Emphasis will be placed on toxic effects observed at relevant exposures, which have direct impact on safety evaluation and risk assessment. The journal therefore welcomes papers on biology ranging from molecular and cell biology, biochemistry and physiology to ecology and environment, also systematics, microbiology, toxicology, hydrobiology, radiobiology and biotechnology. www.eajbs.eg.net Provided for non-commercial research and education use. Not for reproduction, distribution or commercial use.
Journal of Productivity and Development, 2008
Journal of Food Studies, 2019
Domestic, hospital and industrial wastes are major generators of heavy metals. These wastes added... more Domestic, hospital and industrial wastes are major generators of heavy metals. These wastes added to those found in nature pollute the aquatic environment through the discharge. Heavy metals are toxic to living organisms. They accumulate in these beings. Humans get intoxicated by ingesting fish species contaminated by heavy metals. To evaluate the risk of intoxication of humans, it is proposed to determine the mercury, lead and cadmium content of fish and shellfish processed in Senegal. The contamination level of mercury content is determined by the DMA 80. The lead and cadmium content in the species is made by atomic absorption spectrophotometry (AAS). The results obtained show that among the metals measured, lead has the highest content in all species. This is due to its abundance in the waste. Lead is more concentrated in species that live on the bottom. Large species concentrate high levels of mercury due to accumulation and biomagnification. Cadmium is the most concentrated in ...
Canadian Journal of Clinical Nutrition, 2017
Objective: This study aimed to assess the magnitude of malnutrition among pre-school children in ... more Objective: This study aimed to assess the magnitude of malnutrition among pre-school children in Minia district, and its impact on their cognitive performance. Subjects and Methods: This is a cross sectional community based study that was carried among preschool children in El-Minia district. Preschoolers were recruited from randomly selected public schools with a kindergarten from various rural and urban areas. The sample size was 288 children age ranged between 4 years (48 months) to below 7 years (83 months). Data were collected by an aided questionnaire which included socio demographic, dietary pattern and food frequency. The nutritional status was assessed by anthropometric measurements. The Stanford-Binet Intelligence Test, Arabic edition 4 (SBITA) was used to measure the intelligence quotient (IQ). Results: 288 children were studied, (18.8%) of children are overweight, (7.6%) are obese, and only (2.1%) are wasted; according to BMI-for-age Zscore, (28.8%) are at risk of stunting and only (9.4%) are stunted according to Height-for-age Z-score. IQ score was significantly higher among children from urban region (93.6±6.1), children whose fathers, mothers education is university and above (93.9±6.4), (94.2±6.6) respectively, children whose mothers occupation is professional work (94.2±6.4), Mean IQ score was significantly lower among children whose mothers use margarine in cooking (90.8±5.9), while the mean I.Q. score was significantly higher in those who take supplementary vitamins and minerals regularly (98.3±6.6). Conclusion: Proper environmental condition (including proper nutrition, parent’s education and socio-economic standards) were crucial for cognitive and intellectual development of the studied preschool children. It is important to intervene early by nutrition education message to mothers about healthy feeding practices.
Food and Public Health, 2014
This study presents the evaluation of aflatoxins (B1, B2, G1, and G2) and carbamate pesticide con... more This study presents the evaluation of aflatoxins (B1, B2, G1, and G2) and carbamate pesticide contamination in 44 samples of bee honey were locally produced, in Egypt and other countries (Kuwait,
Journal of lasers in medical sciences, 2015
Introduction Low back pain (LBP) is a common disabling musculoskeletal disorder that is highly pr... more Introduction Low back pain (LBP) is a common disabling musculoskeletal disorder that is highly prevalent in the general population. LBP affects 60%-80% of individuals at some point in their lives, and most episodes of LBP resolve within weeks. However, LBP is also recurrent and chronic. Moreover, the costs of LBP have been escalating over the past 25 years. 1 Physical therapy modalities are utilized to ameliorate pain and improve physical function in patients with LBP. Modalities include, but are not limited to, therapeutic exercises, transcutaneous electrical nerve stimulation, electrical stimulation, thermal modalities, low level laser therapy (LLLT), acupuncture, yoga and manipulation. 2-9 Despite the wide variety of intervention options, physical therapy management of LBP might be still far from optimal. Monochromatic infrared photo energy (MIPE) and LLTT are relatively new forms of light energy used to manage LBP. The monochromatic photo energy delivers MIPE with a wavelength of 890 nm. 10 The monochromatic light is emitted by an array of gallium aluminum arsenide diodes that are placed in the target skin. MIPE was used to decrease pain in diabetic peripheral neuropathy, knee osteoarthritis and restless leg syndrome. 11-13 Researchers did not investigate intensively on using the MIPE in patients with musculoskeletal disorders and LBP. LLLT is another form of light energy used in managing LBP. It is a noninvasive, monochromatic electromagnetic highly concentrated light beam and has a power output of less than 1 W/cm. 2,14 LLLT has been used in various neuro-musculoskeletal disorders; however, its effectiveness is controversial. 15 Some researchers suggested that it may relieve pain in temporomandibular disorders, shoulder myofascial pain syndrome and knee osteoarthritis. 16-18 There has been a controversy about its effectiveness in LBP. 19-20 Also, there may be limited evidence about the effectiveness of MIPE and LLLT on chronic LBP. The aim of the present study was to evaluate the short-term effectiveness of two modalities in the treatment of chronic LBP: MIPE and LLLT. Methods Design This study was a randomized trial with participants randomly assigned to one of two treatment groups: (1) group 1 received the MIPE and therapeutic exercises or (2) group 2 received LLLT and therapeutic exercises. The examiner made group comparisons at the initial visit and after 6 weeks. The duration of the interventions was 6 weeks per participant, and each participant received 2 sessions per week.
Agricultural Research Journal, 2015
The analyses of 44 samples of honey, produced in China, Egypt, Ethiopia, Italy, Kuwait, Libya, Sa... more The analyses of 44 samples of honey, produced in China, Egypt, Ethiopia, Italy, Kuwait, Libya, Saudi Arabia, Slovenia, Turkey, Ukraine, and USA during 2012–2013, were carried out to detect the levels of essential and toxic metal elements (arsenic, cadmium, copper, iron, mercury, lead, selenium and zinc) using Solar M Atomic Absorption Spectrophotometer. Arsenic, mercury and selenium were determined by hydride generation technique.
Vita. Thesis (Ph. D.)--University of Toronto, 1978. Includes bibliographical references (leaves 1... more Vita. Thesis (Ph. D.)--University of Toronto, 1978. Includes bibliographical references (leaves 127-136). Microfiche of typescript.
The safety of 44 samples of bee honey locally produced in (China, Egypt, Ethiopia, Italy, Kuwait,... more The safety of 44 samples of bee honey locally produced in (China, Egypt, Ethiopia, Italy, Kuwait, Libya, Saudi Arabia, Slovenia, Turkey, Ukraine, and USA during 2012–2013 were explored to detect the levels of essential and toxic metals (As, Cd, Cu, Fe, Hg, Pb, Se, Zn) in these bee honey samples using Atomic Absorption Spectrometry. Arsenic, mercury, and selenium were determined by hydride generation technique. Determination of the other elements was done using flame atomic absorption spectrometry. The recovery percentage of the found results ranged between 96% and 103%. All collected samples were free from any detectable Pb. The levels of concentrations of these metals in the honey samples of the selected countries were within the allowed limits except the bee honey groups of Kuwait which violated the maximum allowed zinc limits.
A total of 144 samples were collected from five local companies i.e. (I, II, III, IV and V) durin... more A total of 144 samples were collected from five local companies i.e. (I, II, III, IV and V) during January 2007 till December 2007 .Data showed that, 22.91% of collected samples of chosen medicinal plants were contaminated with pesticides residues, while 3.47% of total samples were violated .Highest percentages of studied pesticides residues were detected in karkade and anise, while chamomile was the least contaminant commodity. The violated rate for pesticides contamination was for karkade and anise respectively, while all samples of caraway, chamomile and fenugreek were under MRLs.
Monitoring of heavy metal levels in some herbs and medicinal plants were conducted in Egypt durin... more Monitoring of heavy metal levels in some herbs and medicinal plants were conducted in Egypt during 2011. A total of 60 herbal samples were collected at random from local markets of nine governorates and five companies. Heavy metal contents in the collected samples, viz: Pb, Cd, Zn, Cu, Mn and Fe were found at different levels. The highest mean levels of the metals were found in unpacked samples, while lower concentrations were found in the packed samples. Atomic absorption spectrophotometry was used for the identification and determination of the heavy metals, which were quantitively determined as mg/kg in the collected samples
IEEE Power Engineering Review, 1984
ABSTRACT Aim: This study was conducted to identify the magnitude of undernutrition and to determi... more ABSTRACT Aim: This study was conducted to identify the magnitude of undernutrition and to determine the associated risk factors among elderly populations in rural Minia, Egypt. Subjects and methods: A cross sectional study was conducted on 350 elderly chosen by systematic random sample in the period from December 2011 till May 2012. An interview administered questionnaire about demographic characteristics of elderly subjects and Mini Nutritional Assessment (MNA) were carried out. Results: Based on MNA score, 38.3% of participated elderly have malnutrition or are at risk of malnutrition. Elderly females were significantly more likely to be affected by malnutrition than males (9.8% vs 6.6%). Nearly 38% of persons ≥ 80 years were malnourished vs 5.8% of persons in age group 60-69 years (p˂0.001). Malnutrition was higher among elderly persons who had chronic and acute disease. Conclusion: This study revealed that the percentage of malnutrition and malnutrition risk in this elderly group were 8.6% and 29.7% respectively, with higher percentages in females. These results highlight the need to screen and monitor elderly people and to involve families in the proper nutritional care of elderly.
World Journal of Cardiovascular Diseases, 2015
Objective: Clopidogrel therapy is the standard of care in patients with unstable angina. However,... more Objective: Clopidogrel therapy is the standard of care in patients with unstable angina. However, a percentage of subjects are nonresponders to clopidogrel and this leads to increased adverse outcome. On the other way round, some responsive patients are exposed to bleeding complications. Detection of both in daily practice is important in order to tailor the treatment protocol. In this study we aimed to estimate the cutoff value of mean platelet volume (MPV) for both platelet responsiveness and bleeding risks. Methods: The study was planned as a prospective cohort study. A total number of 230 patients admitted to our CCU with unstable angina over a period of one year (from June 2013 to May 2014) were enrolled. Exclusion criteria were: severe anemia, thrombocytopenia, myelodysplastic syndrome, coagulopathy and recent blood transfusion. In all patients clopidogrel was initially started and maintained during the hospital stay. Blood (2 ml) was collected in dipotassium EDTA tubes from all patients on the first day of admission by a clean puncture. Samples for MPV analysis were drawn on admission, and analyzed within 1 hour of admission after sampling by Beckman Caulter LH 780 Analyzer. Grouping was then done according to MPV of the patients into group (I) who had a low MPV less than or equal to 7.00 fl, and group (II) with MPV equal to or higher than 9.00 fl. Demographical and clinical variables of the patients were recorded. Routine laboratory parameters were also recorded. Clinical manifestations during the admission period were meticulously reported. Major complications as bleeding or, urgent need for percutaneous coronary intervention (PCI) were also studied. Results: Among the 230 patients analyzed, 175 patients (76%) were found to have MPV ≤7.00 fl (group (I)) and 55 patients (24%) had MPV ≥9.00 fl (group (II)) with mean ± SD MPV (8.4 ± 1.5 fl, vs 11.7 ± 1.2 fl respectively) (p < 0.001). Observation of clinical course during admission period revealed a statistically more significant clinical deterioration in group (II) than group (I) and the presence of more frequent AMI cases in group (II) having a high MPV. A high cutoff value of 9.7 fl for MPV was detected in prediction of clopidogrel nonresponsiveness (group (II)) with a sensitivity of 78.2% and specificity of 66.8%, and a low cutoff value for bleeding tendency lower than 6.3 fl was detected in group (I) with a sensitivity of 71.4% and specificity of 62.5%. Conclusion: This study showed that MPV can be used as a simple bedside predictor for detection of clopidogrel response in patients with T. M. Abdel-Rahman 33 unstable angina. And a cutoff value for both platelet responsiveness and risk of bleeding is now reached. This may lead to enhancement in our decision for early intervention and attention for bleeding risk during clopidogrel therapy.