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1Studying the effect of formic acid and potassium diformate on performance,immunity and gut health of broiler chickens显示文摘Our trial was conducted to study the effects of formic acid(FA) and potassium di-formate(KDF) in broiler ration on performance, carcass traits, blood biochemical, intestinal microbial load, histological picture of intestine and immune parameters of broilers. In this study 360 one-day-old broiler chicks were divided to 3 groups with 3 replicates of 40 chicks each. The trial continued for 35 days. The control group was fed only basal diet(G1). Group 2(G2) were fed basal diet supplemented with FA(5 g/kg diet), and group 3(G3) received basal diet supplemented with KDF(5 g/kg diet). The results showed that both FA and KDF significantly increased body weight gain(BWG), dressing percentage of broilers and significantly decreased feed conversion ratio(FCR)(P < 0.05). The highest percent of breast and thigh was observed in G3. The improvement in villus height was observed in G2 and G3 compared with the control one, and the highest was in G3. The results evidence that the using of FA or KDF in broiler feeds have significant effects on performance, immune parameters, and gut health without having any significant effects on blood biochemical. However, KDF is more effective than FA as little amount of FA reaches the small intestine due to metabolism and absorption, whereas KDF permits a proportion of FA to pass through the fore-gut intact and enter the small intestinal tract. In addition, FA has a strong odor and corrosiveness to gastrointestinal tract which limits its use.Naela M.Ragaa Reda M.S.Korany 2016Animal Nutrition2016,,4:30
2CDX2 as a marker for intestinal differentiation: Its utility and limitations显示文摘CDX2 is a nuclear homeobox transcription factor that belongs to the caudalrelated family of CDX homeobox genes. The gene encoding CDX2 is a nonclustered hexapeptide located on chromosome 13q12-13. Homeobox genes play an essential role in the control of normal embryonic development. CDX2 is crucial for axial patterning of the alimentary tract during embryonic development and is involved in the processes of intestinal cell proliferation, differentiation, adhesion, and apoptosis. It is considered specif ic for enterocytes and has been used for the diagnosis of primary and metastatic colorectal adenocarcinoma. CDX2 expression has been reported to be organ specif ic and is normally expressed throughout embryonic and postnatal life within the nuclei of epithelial cells of the alimentary tract from the proximal duodenum to the distal rectum. In this review, the authors elaborate on the diagnostic utility of CDX2 in gastrointestinal tumors and other neoplasms with intestinal differentiation. Limitations with its use as the sole predictor of a gastrointestinal origin of metastatic carcinomas are also discussed.Reda S Saad Zeina Ghorab Mahmoud A Khalifa 2011World Journal of Gastrointestinal Surgery2011,3,11:11
3低温贮藏中华管鞭虾肌肉品质及组织蛋白酶H活性变化显示文摘为探究不同贮藏条件下中华管鞭虾组织蛋白酶H活性及肌肉品质的变化情况,以中华管鞭虾为对象,分别在冷藏(4℃,0~6 d)和冻藏(-18℃,0~120 d)条件下,比较分析完整虾组和去头虾组肌肉pH、持水力、硬度、弹性、肌原纤维蛋白含量、水分含量及各亚细胞分级中组织蛋白酶H活性等指标的变化。结果表明,随着贮藏时间的延长,整虾和去头虾肌肉pH均不断升高,但去头虾组pH升高幅度略低于完整虾组;虾肉中肌原纤维蛋白含量随贮藏时间延长而逐渐降低,完整虾组和去头虾组在冷藏至6 d时分别降低了38.32%和30.88%,在冻藏至120 d时分别减低了61.67%和52.09%;在整个冻藏过程中,两组虾的硬度和弹性均出现先上升后下降的趋势,而冷藏贮藏过程中则始终呈现下降趋势;组织蛋白酶H在不同亚细胞分级中活性变化不同,冻藏条件下两组虾组织蛋白酶H酶活整体低于冷藏条件下酶活,且完整虾组组织蛋白酶H活性整体高于去头虾组。综上,在低温贮藏过程中,相比于完整虾形式,以去头虾的贮藏方式更有利于对虾肌肉品质的保障,且组织蛋白酶H活性受贮藏温度影响较大。研究结果为不同贮藏方式下中华管鞭虾理化特性及组织蛋白酶活性变化提供了理论基础。李志鹏 周晓娇 水珊珊 HATAB Shaimaa Reda Abd Elkhalik 张宾 2021食品工业科技2021,42,22:10
4Tumor necrosis factor-alpha -308G/A polymorphism and risk of hepatocellular carcinoma in hepatitis C virus-infected patients显示文摘Tumor necrosis factor-alpha (TNF-α) is an important cytokine in generating an immune response against infection with hepatitis C virus (HCV). The functions of TNF-α may be altered by single-nucleotide polymorphisms (SNPs) in its gene structure. We hypothesized that SNPs in TNF-α may be important in determining the outcome of an HCV infection. To test this hypothesis, we investigated the role of the polymorphism -308G/A, which is located in the promoter region of the TNF-α gene, in the progression of HCV infection in Egyptian patients using a quantitative real-time polymerase chain reaction (qRT-PCR). The distribution of this polymorphism and its impact on the serum level of TNF-α was compared between 90 HCV-infected patients [45 with HCV-induced cirrhosis and 45 with HCV-related hepatocellular carcinoma (HCC)] and 45 healthy Egyptian volunteers without any history of liver disease. Our results showed that at the TNF-α -308 position, the G/G allele was most common (78.5% ) in the study population, with the G/A and A/A alleles occurring less frequently (13.3% and 8.1% , respectively). Frequencies of G/G, G/A, and A/A genotypes were 87%, 7%, and 6% in patients with liver cirrhosis and were 94% , 4% , and 2% in patients with HCC, respectively. Serum levels of TNF-α were significantly higher in HCV-infected patients than in healthy controls, indicating that the TNF-α -308 polymorphism does not influence the production of TNF-α. The serum level of TNF-α was positively correlated with HCV infection. Taken together, these findings suggest that the TNF-α -308 polymorphism may not be a host genetic factor associated with the severity of HCV infection, but may be an independent risk factor for HCC.Roba M.Talaat Ahmed A.Esmail Reda Elwakil Adel A.Gurgis Mahmoud I.Nasr 2012Chinese Journal of Cancer2012,31,1:9
5Maize response to elevated plant density combined with lowered N-fertilizer rate is genotype-dependent显示文摘Increasing plant density and improving N fertilizer rate along with the use of high density-tolerant genotypes would lead to maximizing maize(Zea mays L.) grain productivity per unit land area. The objective of this investigation was to match the functions of optimum plant density and adequate nitrogen fertilizer application to produce the highest possible yields per unit area with the greatest maize genotype efficiency. Six maize inbred lines differing in tolerance to low N and high density(D) [three tolerant(T); L-17, L-18, L-53,and three sensitive(S); L-29, L-54, L-55] were chosen for diallel crosses. Parents and crosses were evaluated in the 2012 and 2013 seasons under three plant densities: low(47,600),medium(71,400), and high(95,200) plants ha-1and three N fertilization rates: low(no N addition), medium(285 kg N ha-1) and high(570 kg N ha-1). The T × T crosses were superior to the S × S and T × S crosses under the low N–high D environment in most studied traits across seasons. The relationships between the nine environments and grain yield per hectare(GYPH) showed near-linear regression functions for inbreds L54, L29, and L55 and hybrids L18 × L53 and L18 × L55 with the highest GYPH at a density of47,600 plants ha-1and N rate of 570 kg N ha-1and a curvilinear relationship for inbreds L17, L18, and L53 and the rest of the hybrids with the highest GYPH at a density of95,200 plants ha-1combined with an N rate of 570 kg N ha-1. Cross L17 × L54 gave the highest grain yield in this study under both high N–high-D(19.9 t ha-1) and medium N–high-D environments(17.6 t ha-1).Ahmed Medhat M.Al-Naggar Reda A.Shabana Mohamed M.M.Atta Tarek H.Al-Khalil 2015The Crop Journal2015,3,2:7
6Macrosomia in non-gestational diabetes pregnancy:glucose tolerance test characteristics and feto-maternal complications in tropical Asia Pacific Australia显示文摘Objective:To look into the glucose tolerance test characteristics and determine complications in non-gestational diabetes pregnant subjects.Methods:From 2006 to 2009 all non-gestational diabetes mellitus(non-CDM)pregnant women who delivered macrosomia at the North Australia's Townsville Hospital were retrospectively reviewed by extracting data from clinical record.Glucose tolerance tests results were analysed in the light of an earlier diagnosis of non-GDM.Results:Ninety-one non-CDM mothers with macrosomia were studied and compared with 41normoglycemic subjects without macrosomia.Of the subjects with non-GDM macrosomia,45(49.4%)had normal SO g glucose challenge test(GCT)without further testing,another 8(8.8%)had abnormal GCT but normal 75 g oral glucose tolerance test(OGTT).A total of 4(4.4%)subjects had normal GCT and OGTT.Interestingly.14 out of 16(87.5%)subjects who were tested with OGTT owing to past history of macrosomia had normal results but delivered macrosomic babies.Only 12 subjects had both GCT and OGTT,the rest of the cohort had either of the two tests.Subjects with non-CDM macrosomia had higher frequency of neonatal hypoglycaemia 34%as compared to 10%in nonmacrosomic babies(P=0.003).Other feto-maternal complications were similar in both groups.Conclussions:No significant pattern of glucose tolerance characteristics was identified in nonGDM mothers with macrosomic babies.In spite of being normoglycemic significant neonatal hypoglycaemia was recorded in non-GDM macrosomic babies.Further prospective studies on a larger population are needed to verify our findings.Algenes Aranha Usman H Malabu Venkat Vangaveti Elham Saleh Reda Yong Mong Tan Kunwarjit Singh Sangla 2014Asian Pacific Journal of Tropical Biomedicine2014,4,6:7
7Epidemiology and outcome of Crohn's disease in a teaching hospital in Riyadh显示文摘AIM: To know the epidemiology and outcome of Crohn's disease at King Khalid University Hospital, Riyadh, Saudi Arabia and to compare the results from other world institutions.METHODS: A retrospective analysis of patients seen for 20 years (between 1983 and 2002). Individual case records were reviewed with regard to history, clinical, findings from colonoscopy, biopsies, small bowel enema, computerized tomography scan, treatment and outcome.RESULTS: Seventy-seven patients with Crohn's disease were revisited, 13% presented the disease in the first 10 years and 87% over the last 10 years. Thirty-three patients (42.9%) were males and 44 (57.1%) were females. Age ranged from 11-70 years (mean of 25.3+11.3 years). Ninety-two (92%) were Saudi. The mean duration of symptoms was 26+34.7 mo. The mean annual incidence of the disease over the first 10 years was 0.32:100 000 and 1.66:100 000 over the last 10 years with a total mean annual incidence of 0.94:100 000 over the last 20 years. The chief clinical features included abdominal pain, diarrhea, weight loss,anorexia, rectal bleeding and palpable mass. Colonoscopic findings were abnormal in 58 patients (76%) showing mostly ulcerations and inflammation of the colon. Eighty nine percent of patients showed nonspecific inflammation with chronic inflammatory cells and half of these patients revealed the presence of granulomas and granulations on bowel biopsies. Similarly, 69 (89%) of small bowel enema results revealed ulcerations (49%), narrowing of the bowel lumen (42%), mucosal thickening (35%) and cobblestone appearance (35%). CT scan showed abnormality in 68 (88%) of patients with features of thickened loops (66%) and lymphadenopathy (37%). Seventy-eight percent of patients had small and large bowel disease, 16% had small bowel involvement and only 6% had colitis alone. Of the total 55 (71%) patients treated with steroids at some point in their disease history, a satisfactory response to therapy was seen in 28 patients (51%) while 27 (49%) showed recurrences of the condition with mild to moderate symptoms of abdominal pain and diarrhea most of which were due to poor compliance to medication. Seven patients (33%) remained with active Crohn's disease. Nine (12%) patients underwent surgery with resections of some parts of bowel, 2 (2.5%) had steroid side effects, 6 (8%) with perianal Crohn's disease and five (6.5%) with fistulae.CONCLUSION: The epidemiological characteristics of Crohn's disease among Saudi patients are comparable to those reported from other parts of the world. However the incidence of Crohn's disease in our hospital increased over the last 10 years. The anatomic distribution of the disease is different from other world institutions with less isolated colonic affection.Abdullah S.AI-Ghamdi Ibrahim A.AI-Mofleh Rashed S.AIRashed Saleh M.AI-Amri Abdulrahman M.Aljebreen Reda EI-Badawi Arthur C.Isnani 2004World Journal of Gastroenterology2004,10,9:6
8开放与腹腔镜下腹壁切口疝修补术术后并发症的分级和评估:前瞻性随机对照研究显示文摘目的介绍一种针对腹部切口疝修补术后并发症的评估方法。方法 2004-2006年间,146例病人被随机分为两组,一组接受腹腔镜切口疝修补术(腹腔镜组,n=73),另一组接受传统开放式切口疝修补术(传统组,n=73)。研究对象是术后8周内出现的并发症。利用'三步法'来评价并发症的严重性。首先,将所有并发症根据Clavien分级分类。第二步,5位研究员分别独自运用直观叙述问卷模式对并发症的严重程度分级:0表示无术后并发症,100表示术后死亡。第三步,分别用中位数、最低和最高值对腹腔镜组与传统组术后并发症进行评价。结果传统组术后并发症发生率要显著高于腹腔镜组(47.9%vs.31.5%,P=0.026),而腹腔镜组术后并发症的严重度高于传统组。非参数分析显示传统组术后并发症发生率较高(四分位数间距为:开放组0-20对比腹腔镜组0-10;P=0.049)。在敏感性比较中,中位数、最高值和最低值获得了类似结果。结论该方法可以对两种术式术后并发症的发生做出直接评价。评估方法的合法性、可靠性和普遍性有待进一步的研究证实。Kaafarani HMA Hur K Campasano M Reda DJ Itani KMF 2011中国实用外科杂志2011,31,4:4
9Regulation by carnitine of myocardial fatty acid and carbohydrate metabolism under normal and pathological conditions显示文摘Menotti Calvani Emilia Reda Edoardo Arrigoni-Martelli 2000Basic Research in Cardiology2000,,2:4
10Video head impulse test (vHIT) in migraine dizziness显示文摘Background and objective: Migraine is an extremely prevalent primary headache disorder that frequently associates parallel symptoms such as dizziness, tinnitus and hearing loss. Our aim is to investigate differences in video head impulse(vHIT) results with patients suffering from vestibular migraine(VM) and healthy people, taking into consideration mean values of vestibule ocular reflex(VOR) gain, occurrence of the compensatory saccades latency and amplitude. According to the results, determine the usefulness of vHIT in vestibular migraine diagnostics.Methods: A total number of 120 subjects were enrolled in the study, 80 of them were vestibular migraine patients(VM),while the other 40 were a control group of age matched healthy subjects. History was taking during the evaluation;videonystagmography and the video head impulse test were done.Results: The rate of saccades is much more higher in the VM group compared to the healthy subjects group, only 7.5% of the VM group showed a low VOR gain with compensatory saccades denoting a vestibular deficit.Conclusion: The refixation saccades are an important sign that could underlie different vestibular problems. vHIT result can contribute to the completion of full mosaic of vestibular migraine diagnostics.Mayada ElSherif Mohamed Ihab Reda Horeya Saadallah Mona Mourad 2018Journal of Otology2018,13,2:3
11N-butyl-2-cyanoacrylate, iso-amyl-2-cyanoacrylate and hypertonic glucose with 72% chromated glycerin in gastric varices显示文摘AIM: To compare n-butyl-2-cyanoacrylate, iso-amyl-2-cyanoacrylate and a mixture of 72% chromated glycerin with hypertonic glucose solution in management of gastric varices. METHODS: Ninety patients with gastric varices presented to Endoscopy Unit of Ain Shams University Hospital were included. They were randomly allocated into three groups; each group included 30 patients treated with intravariceal sclerosant injections in biweekly sessions till complete obturation of gastric varices; Group I(n-butyl-2-cyanoacrylate; Histoacryl), Group II(iso-amyl-2-cyanoacrylate; Amcrylate) and Group III(mixture of 72% chromated glycerin; Scleremo with glucose solution 25%). All the procedures were performed electively without active bleeding. Recruited patients were followed up for 3 mo. RESULTS: 26% of Scleremo group had bleeding during puncture vs 3.3% in each of the other two groups with significant difference,(P < 0.05). None of Scleremo group had needle obstruction vs 13.3% in each of the other two groups with no significant difference,(P > 0.05). Rebleeding occurred in 13.3% of Histoacryl and Amcrylate groups vs 0% in Scleremo group with no significant difference. The in hospital mortality was 6.6% in both Histoacryl and Amcrylate groups, while it was 0% in Scleremo group with no significant difference. In the first and second sessions, the amount of Scleremo needed for obturation was significantly high, while the amount of Histoacryl was significantly low. Scleremo was the less costly of the two treatments. CONCLUSION: All used sclerosant substances showed efficacy and success in management of gastric varices with no significant differences except in total amount, cost and bleeding during puncture.Reda Elwakil Mohamed Fawzy Montasser Sara M Abdelhakam Wesam A Ibrahim 2015World Journal of Gastrointestinal Endoscopy2015,7,4:3
12Hemodynamic Factors and Perfusion Abnormalities in Early Neurological Deterioration显示文摘Josef A. Alawneh Ramez Reda Moustafa Jean-Claude Baron 2009Stroke2009,,6:2
13An Improved Jellyfish Algorithm for Multilevel Thresholding of Magnetic Resonance Brain Image Segmentations显示文摘Image segmentation is vital when analyzing medical images,especially magnetic resonance(MR)images of the brain.Recently,several image segmentation techniques based on multilevel thresholding have been proposed for medical image segmentation;however,the algorithms become trapped in local minima and have low convergence speeds,particularly as the number of threshold levels increases.Consequently,in this paper,we develop a new multilevel thresholding image segmentation technique based on the jellyfish search algorithm(JSA)(an optimizer).We modify the JSA to prevent descents into local minima,and we accelerate convergence toward optimal solutions.The improvement is achieved by applying two novel strategies:Rankingbased updating and an adaptive method.Ranking-based updating is used to replace undesirable solutions with other solutions generated by a novel updating scheme that improves the qualities of the removed solutions.We develop a new adaptive strategy to exploit the ability of the JSA to find a best-so-far solution;we allow a small amount of exploration to avoid descents into local minima.The two strategies are integrated with the JSA to produce an improved JSA(IJSA)that optimally thresholds brain MR images.To compare the performances of the IJSA and JSA,seven brain MR images were segmented at threshold levels of 3,4,5,6,7,8,10,15,20,25,and 30.IJSA was compared with several other recent image segmentation algorithms,including the improved and standard marine predator algorithms,the modified salp and standard salp swarm algorithms,the equilibrium optimizer,and the standard JSA in terms of fitness,the Structured Similarity Index Metric(SSIM),the peak signal-to-noise ratio(PSNR),the standard deviation(SD),and the Features Similarity Index Metric(FSIM).The experimental outcomes and the Wilcoxon rank-sum test demonstrate the superiority of the proposed algorithm in terms of the FSIM,the PSNR,the objective values,and the SD;in terms of the SSIM,IJSA was competitive with the others.Mohamed Abdel-Basset Reda Mohamed Mohamed Abouhawwash Ripon K.Chakrabortty Michael J.Ryan Yunyoung Nam 2021Computers, Materials & Continua2021,,9:2
14Melting phenomenon in magneto hydro-dynamics steady flow and heat transfer over a moving surface in the presence of thermal radiation显示文摘The Lie group method is applied to present an analysis of the magneto hydro-dynamics(MHD) steady laminar flow and the heat transfer from a warm laminar liquid flow to a melting moving surface in the presence of thermal radiation.By using the Lie group method,we have presented the transformation groups for the problem apart from the scaling group.The application of this method reduces the partial differential equations(PDEs) with their boundary conditions governing the flow and heat transfer to a system of nonlinear ordinary differential equations(ODEs) with appropriate boundary conditions.The resulting nonlinear system of ODEs is solved numerically using the implicit finite difference method(FDM).The local skin-friction coefficients and the local Nusselt numbers for different physical parameters are presented in a table.Reda G.Abdel-Rahman M.M.Khader Ahmed M.Megahed 2013Chinese Physics B2013,22,3:2
15Advances in Effects of Sound Waves on Plants显示文摘Sound waves technology has been applied to different plants.It has been found that sound waves were at different frequencies,sound pressure levels(SPLs),exposure periods,and distances from the source of sound infl uence plant growth.Experiments have been conducted in the open field and under greenhouse growing conditions with different levels of audible sound frequencies and sound pressure levels.Sound waves at 1 kHz and 100 dB for 1 h within a distance of 0.20 m could significantly promote the division and cell wall fl uidity of callus cells and also significantly enhance the activity of protective enzymes and endogenous hormones.Sound waves stimulation could increase the plant plasma-membrane H+-ATPase activity,the contents of soluble sugar,soluble protein,and amylase activity of callus.Moreover,sound waves could increase the content of RNA and the level of transcription.Stress-induced genes could switch on under sound stimulation.Sound waves at 0.1-1 kHz and SPL of(70±5)dB for 3 h from plant acoustic frequency technology(PAFT)generator within a distance ranged from 30 to 60 m every other day significantly increased the yield of sweet pepper,cucumber and tomato by 30.05,37.1and 13.2%,respectively.Furthermore,the yield of lettuce,spinach,cotton,rice,and wheat were increased by 19.6,22.7,11.4,5.7,and 17.0%,respectively.Sound waves may also strengthen plant immune systems.It has been proved that spider mite,aphids,gray mold,late blight and virus disease of tomatoes in the greenhouses decreased by 6.0,8.0,9.0,11.0,and 8.0%,respectively,and the sheath blight of rice was reduced by 50%.This paper provides an overview of literature for the effects of sound waves on various growth parameters of plant at different growth stages.Reda H E Hassanien HOU Tian-zhen LI Yu-feng LI Bao-ming 2014Journal of Integrative Agriculture2014,13,2:2
16草莓温室太阳能热泵系统阶梯式供暖特性显示文摘运用太阳能热泵系统为草莓温室供暖,能有效提升草莓的产量和品质。为探究温室内立体栽培的供暖特性,以及相匹配的太阳能热泵系统的供暖系数(coefficient of performance,COP),该文设计并搭建了太阳能热泵阶梯式供暖系统。以'京藏香'草莓为试材,分析了距离地面0.5、1.0、1.5及2.0 m不同阶梯高度的空间温度,对比了阶梯式供暖的太阳能温室和未供暖的普通温室内的草莓品质及产量。结果表明,在北亚热带低纬高原山地季风气候地区,冬季采用太阳能热泵系统为温室供暖的COP值在3.02~5.15之间。在太阳能温室内种植的草莓产量是普通温室产量的1.56倍,可溶性固形物含量的平均值达10.5%。在太阳能热泵系统阶梯式供暖的温室中,距离地面1.0~1.5 m高度范围内的供暖效果较好,且放置于1.0 m阶梯上的草莓与其他高度的草莓相比,产量最高品质最优,其单果最大值为32.3 g,可溶性固形物含量为12.5%,因此,采用阶梯式供暖的温室中,距离地面1.0 m高度的温度更适宜草莓生长需求。唐伊恋 李明 马逊 Reda Hassanien Emam 2018农业工程学报2018,34,13:2
17Fibrosis, Portal Hypertension, and Hepatic Volume Changes Induced by Intra-arterial Radiotherapy with 90 Yttrium Microspheres显示文摘T. F. Jakobs S. Saleem B. Atassi E. Reda R. J. Lewandowski V. Yaghmai F. Miller R. K. Ryu S. Ibrahim K. T. Sato L. M. Kulik M. F. Mulcahy R. Omary R. Murthy M. F. Reiser R. Salem 2008Digestive Diseases and Sciences2008,,9:2
18以脉冲萃取柱利用三异辛胺从高浓度铀溶液中回收铀(英文)显示文摘利用三异辛胺(TOA)纯化Gattar小型试验工厂的高浓度铀溶液(洗脱液的铀浓度7 g·L-1),研究了脉冲萃取柱的性能。利用实验室级脉冲萃取柱进行了实验室规模的溶剂萃取实验和后续实验。结果表明,在室温、p H=1和有机相与水相的比例(VO/VA)约为1.8∶1时,加入二(2-乙基己基)磷酸(D2EHPA)使其与TOA的比例(VD2EHPA/VTOA)为2∶3,可使萃取克服Cl-的抑制效应,提高效率。将结论用于考察试验工厂级萃取柱的流体力学和传质性能,结果表明用脉冲萃取柱萃取铀可以达到97%的萃取效率,具有可行性。Mohamed Fathi El-Shahat Hisham Mohamed Kamal Reda Abd El-Gawad Ghazalla Walid Mohamed Morsy 2016无机化学学报2016,32,8:2
19Influences of greenhouse-integrated semi-transparent photovoltaics on microclimate and lettuce growth显示文摘Shading in greenhouses is a simple and cheap method usually used to reduce the intensity of solar radiation and air temperature.Moreover,combining Photovoltaic(PV)panels and crops on the same cropland could alleviate the increasing competition for the agricultural land between food and energy production.In addition,the integration of PV with greenhouses could reduce,or partially replace the energy consumption for greenhouse crop production.Therefore,the aim of this study was to investigate the shading effect of semi-transparent mono-crystalline silicon double glazing photovoltaic panels(STPV),mounted on top of an agricultural greenhouse,which occupied 20%of the roof area,on the microclimate conditions and the growth of lettuce plants inside a greenhouse.Results showed that the combination of STPV and polyethylene cover decreased the solar radiation by 35%to 40%compared to the use of polyethylene cover only for clear days which was in the acceptable range of photosynthetically active radiation for lettuce plants.Moreover,STPV shading decreases the air temperature by 1℃-3℃ and had no effect in the relative humidity under natural ventilation.Furthermore,there were no significant differences(p<0.05)in the growth of lettuce plants between the shaded greenhouse by the STPV and the unshaded.Shading insignificantly increased the fresh weight,leaf area and the chlorophyll contents(p<0.05).In conclusion,the integration of STPV modules can decrease the solar irradiation and the internal air temperatures as well as generate electric energy for environmental control systems without significant influence on the growth of lettuce plants.Meanwhile,it can decrease the water consumption by decreasing the evapotranspiration rate.Reda Hassanien Emam Hassanien Li Ming 2017International Journal of Agricultural and Biological Engineering2017,10,6:2
20Purslane protects against the reproductive toxicity of carbamazepine treatment in pilocarpine-induced epilepsy model显示文摘Objective: To investigate the protective effect of purslane with carbamazepine treatment.Methods: Male albino rats were modulated by pilocarpine to be epileptic.Both the normal and epileptic rats were treated with carbamazepine, purslane or carbamazepine plus purslane, with separate non-treated control groups for both normal and epileptic rats.Results: The data from the current study showed amelioration in amino acids and electrolytes in the epileptic rats treated with purslane and carbamazepine, with this amelioration occurring without decreasing the fertility hormones(testosterone,dehydroepiandrosterone, luteinizing hormone and follicle stimulating hormone).Purslane treatments also prevented the increase in estradiol.The decreased epileptic hyperexcitability with purslane was evidenced by decreased glial fibrillary acidic protein and lipid peroxidation.Conclusions: Natural products like purslane could be used with the highly repetitive drugs like carbamazepine to reduce or prevent its side-effects.Widad Makhdour Al-Bishri Eman Salah Abdel-Reheim Amr Reda Zaki 2017Asian Pacific Journal of Tropical Biomedicine2017,7,4:2
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