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1Literature review on the management of diabetic foot ulcer显示文摘Diabetic foot ulcer(DFU) is the most costly and devastating complication of diabetes mellitus, which affect 15% of diabetic patients during their lifetime.Based on National Institute for Health and Clinical Excellence strategies, early effective management of DFU can reduce the severity of complications such as preventable amputations and possible mortality, and also can improve overall quality of life. The management of DFU should be optimized by using a multidisciplinary team, due to a holistic approach to wound management is required. Based on studies, blood sugar control, wound debridement, advanced dressings and offloading modalities should always be a part of DFU management. Furthermore, surgery to heal chronic ulcer and prevent recurrence should be considered as an essential component of management in some cases. Also, hyperbaric oxygen therapy, electrical stimulation, negative pressure wound therapy, bio-engineered skin and growth factors could be used as adjunct therapies for rapid healing of DFU. So, it's suggested that with appropriate patient education encourages them to regular foot care in order to prevent DFU and its complications.Leila Yazdanpanah Morteza Nasiri Sara Adarvishi 2015World Journal of Diabetes2015,6,1:55
2Adsorption of benzene and toluene from waste gas using activated carbon activated by ZnCl2显示文摘有高表面区域的一系列激活的碳与 ZnCl 用化学激活从核桃壳被准备 < 潜水艇 class= “ a-plus-plus ” > 2 。在这研究,碳化阶段在 500 点被执行 ???Leila KARIMNEZHAD 2014Frontiers of Environmental Science & Engineering2014,8,6:13
3Investigation of factors affecting on viscosity reduction of sludge from Iranian crude oil storage tanks显示文摘Crude oil is a kind of water/oil emulsion, which the oil phase consists of organic molecules with different molecular weights such as alkanes, paraffin, asphaltene, and resins. Due to the change in physicochemical conditions during the production, transportation, storage, and refining, heavier molecules can precipitate from crude oil. Thus, viscous sludge formed at the bottom of storage tanks can cause many problems including reduction of storage capacity of tank, oil contamination, corrosion, repair costs, environmental pollution, etc. The reduction of sludge viscosity can be achieved by reduction of its interfacial tension. In this study, different chemical and physical factors, influencing prepared emulsions(made of sludge, water and surfactant), such as surfactants, solvents, temperature, pressure, and mixing conditions were investigated. Results showed that non-ionic surfactants(like bitumen emulsifier), and solvents(such as mixed xylene, AW-400, and AW-402), injection of additives, applying pressure, and mixing operations had a positive effect on reduction of emulsion viscosity. All experiments were carried out with sludge obtained from crude oil storage tanks at Kharg Island,Iran.Masoumeh Hassanzadeh Leila Tayebi Hedieh Dezfouli 2018Petroleum Science2018,15,3:11
4Chemical,Sensorial and Rheological Properties of a New Organic Rice Bran Beverage显示文摘Rice bran is a solid residue from rice polishing that is used in animal nutrition and rice oil production. Cultivation conditions with agro-toxics, lipids instability, and tendency for mycotoxin contamination restrict its application in human nutrition. Therefore, organic agriculture is an alternative to use the properties of rice bran. Rice bran beverage is a new cereal product from organic rice. This work presents the preliminary results of the chemical and rheological studies of a bath pasteurized rice bran beverage. Compared with integral defatted milk, soy extracts, and brown rice low-fat milk, the rice bran beverage studied in this work presents itself as an important source of minerals and unsaturated lipids. All essential amino acids were found in this product. Glutamic and aspartic acids were predominant. Bath pasteurization at boiling water temperature for 15 and 30 min was adequate for microbiological safety. Refrigeration storage for 20 days, evaluated by pH and acidity variations, was ideal for assessment of the beverage conservation time. The beverage viscosity was of the Newtonian standard behavior, and its viscosity during storage was not a good parameter to evaluate shelf life. Sensory preference tests showed positive perspectives for this new beverage.Gerson Luis FACCIN Leila do Nascimento VIEIRA Letícia Adélia MIOTTo Pedro Luiz Manique BARRETO Edna Regina AMANTE 2009Rice science2009,16,3:9
5Intra-familial prevalence of hepatitis B virologic markers in HBsAg positive family members in Nahavand, Iran显示文摘AIM: To determine the prevalence of hepatitis B in Nahavand and evaluate the HBsAg positive prevalence in families with a member who was confirmed to have HBV infection.METHODS: This study was performed in two phases. In the first phase, 1 824 subjects in Nahavand city were selected. The interviewers visited the houses of chosen families to fill the questionnaire and take the blood samples.All subjects signed an informed consent before interviews and blood sampling. The samples were evaluated for HBV virologic markers. In the second phase, 115 HBsAg-positive cases were enrolled and evaluated for HBV virologic markers.RESULTS: The prevalence of positive HBsAg in Nahavand was 2.3%. The most frequent relatives of index cases were sons and daughters (32.2% and 23.5% respectively).Twelve (11%) of all family members were HBsAg positive.Fifty (56.2%) were isolated HBsAb positive and only one person (2.5%) was isolated HBcAb positive. The higher rates of HBsAg marker were detected in the brothers (1-25%) and fathers (1-12.5%). The infection rate in husbands and wives of index cases was 10%. Only two (16.7%) of all HBsAg-positive participants reported previous HBV vaccination.CONCLUSION: The prevalence of intra-familial HBV infection is lower in Nahavand of Iran compared to other studies.More attention should be paid to HBV vaccination and risk-lowering activities.Amir Houshang Mohammad Alizadeh Mitra Ranjbar Shahin Ansari Seyed Moayed Alavian Hamid Mohaghegh Shalmani Leila Hekmat Mohammad Reza Zali 2005World Journal of Gastroenterology2005,11,31:8
6LaZn_xFe_(1-x)O_3钙钛矿型纳米催化剂的制备、表征及其甲苯燃烧性能(英文)显示文摘Nanostructured LaFeO3 and substituted LaZnxFe1-xO3(x = 0.01,0.05,0.1,0.2,and 0.3) perovskites were synthesized by the sol-gel auto-combustion method and used in the catalytic combustion of toluene.Their structures and surface properties were investigated by X-ray diffraction,Fourier transmission infrared spectroscopy,BET surface area,and scanning electron microscopy.Characterization data revealed that the total insertion of zinc into LaFeO3 takes place when x ≤ 0.1.However,ZnO segregation occurs to some extent,especially at x > 0.1.The performance of these perovskites was evaluated by toluene combustion.The catalytic activity of the catalysts increased substantially with an increase in zinc substitution.These results can be attributed to the cooperative effect between LaZnxFe1-xO3 and the zinc oxide phases.The relative concentration of these phases determines their oxygen activation ability and reactivity.Seyed Ali HOSSEINI Mohammad Taghi SADEGHI Abdolali ALEMI Aligholi NIAEI Dariush SALARI Leila KAFI-AHMADI 2010催化学报2010,31,7:7
7Relationship between Temperaments of Medicinal Plants and Their Major Chemical Compounds显示文摘Objective: To determine any relationship between temperaments of medicinal plants referred to traditional Iranian manuscripts and their major chemical compounds. Methods: Plants used in traditional Iranian medicine were categorized based on their major chemical compounds including alkaloids, phenolic compounds, and essential oils. Their temperaments were extracted from traditional herbal pharmacopeias of Iran. The possible relationship between major chemical compounds and temperaments of each group were evaluated. Results: Plants containing phenolic compounds as their major constituents are hot and dry temperaments except those contain tannins with cold and dry temperaments. Plants containing essential oils have hot and dry temperaments except those whose major essential oils with alcoholic structure which have cold and dry temperaments. Alkaloid-containing plants have cold and dry or hot and dry temperaments based on their alkaloidal structures. Conclusions: There is a close relationship between major chemical compounds of medicinal plants and their temperaments mentioned in traditional Iranian manuscripts.Mohammad Reza Shams Ardekani Roja Rahimi Behjat Javadi Leila Abdi Mahnaz Khanavi 2011Journal of Traditional Chinese Medicine2011,31,1:7
8Inpatient capsule endoscopy leads to frequent incomplete small bowel examinations显示文摘AIM:To examine the predictive factors of capsule endoscopy(CE) completion rate(CECR) including the effect of inpatient and outpatient status.METHODS:We identified 355 consecutive patients who completed CE at Rush University Medical Center between March 2003 and October 2005.Subjects for CE had either nothing by mouth or clear liquids for the afternoon and evening of the day before the procedure.CE exams were reviewed by two physicians who were unaware of the study hypotheses.After retrospective analysis,21 cases were excluded due to capsule malfunction,prior gastric surgery,endoscopic capsule placement or insufficient data.Of the remaining 334 exams [264 out-patient(OP),70 in-patient(IP)],CE indications,findings,location of the patients [IP vs OP and intensive care unit(ICU) vs general medical floor(GMF)] and gastrointestinal transit times were analyzed.Statistical analysis was completed using SPSS version 17(Chicago,IL).Chi-square,t test or fisher exact-tests were used as appropriate.Multivariate logistic regression analysis was used to identify variables associated with incomplete CE exams.RESULTS:The mean age for the entire study population was 54.7 years.Sixty-one percent of the study population was female,and gender was not different between IPs vs OPs(P = 0.07).The overall incomplete CECR was 14% in our study.Overt obscure gastrointestinal bleeding(OGB) was a significantly more common indication for the IP CE(P = 0.0001),while abdominal pain and assessment of IBD were more frequent indications for the OP CE exams(P = 0.002 and P = 0.01,respectively).Occult OGB was the most common indication and arteriovenous malformations were the most common finding both in the IPs and OPs.The capsule did not enter the small bowel(SB) in 6/70 IPs and 8/264 OPs(P = 0.04).The capsule never reached the cecum in 31.4%(22/70) of IP vs 9.5%(25/264) of OP examinations(P < 0.001).The mean gastric transit time(GTT) was delayed in IPs compared to OPs,98.5 ± 139.5 min vs 60.4 ± 92.6 min(P = 0.008).Minimal SB transit time was significantly prolonged in the IP compared to the OP setting [IP = 275.1 ±111.6 min vs OP = 244.0 ± 104.3 min(P = 0.037)].CECR was also significantly higher in the subgroup of patients with OGB who had OP vs IP exams(95% vs 80% respectively,P = 0.001).The proportion of patients with incomplete exams was higher in the ICU(n = 7/13,54%) as compared to the GMF(n = 15/57,26%)(P = 0.05).There was only a single permanent SB retention case which was secondary to a previously unknown SB stricture,and the remaining incomplete SB exams were due to slow transit.Medications which affect gastrointestinal system motility were tested both individually and also in aggregate in univariate analysis in hospitalized patients(ICU and GMF) and were not predictive of incomplete capsule passage(P > 0.05).Patient location(IP vs OP) and GTT were independent predictors of incomplete CE exams(P < 0.001 and P = 0.008,respectively).CONCLUSION:Incomplete CE is a multifactorial problem.Patient location and related factors such as severity of illness and sedentary status may contribute to incomplete exams.Cemal Yazici John Losurdo Michael D Brown Scott Oosterveen Robert Rahimi Ali Keshavarzian Leila Bozorgnia Ece Mutlu 2012World Journal of Gastroenterology2012,18,36:6
9Histone modifications and alcohol-induced liver disease:Are altered nutrients the missing link?显示文摘Alcoholism is a major health problem in the United States and worldwide,and alcohol remains the single most significant cause of liver-related diseases and deaths.Alcohol is known to influence nutritional status at many levels including nutrient intake,absorption,utilization,and excretion,and can lead to many nutritional disturbances and deficiencies.Nutrients can dramatically affect gene expression and alcohol-induced nutrient imbalance may be a major contributor to pathogenic gene expression in alcohol-induced liver disease(ALD).There is growing interest regarding epigenetic changes,including histone modifications that regulate gene expression during disease pathogenesis.Notably,modifications of core histones in the nucleosome regulate chromatin structure and DNA methylation,and control gene transcription.This review highlights the role of nutrient disturbances brought about during alcohol metabolism and their impact on epigenetic histone modifications that may contribute to ALD.The review is focused on four critical metabolites,namely,acetate,S-adenosylmethionine,nicotinamide adenine dinucleotide and zinc that are particularly relevant to alcohol metabolism and ALD.Akshata Moghe Swati Joshi-Barve Smita Ghare Leila Gobejishvili Irina Kirpich Craig J McClain Shirish Barve 2011World Journal of Gastroenterology2011,17,20:6
10Association between sarcopenic obesity and higher risk of type 2 diabetes in adults: A systematic review and meta-analysis显示文摘BACKGROUND The coexistence of sarcopenia and obesity is referred to as sarcopenic obesity(SO)and it has been hypothesized that the two components of SO may synergistically increase their negative effects. However, many uncertainties still surround this condition especially with regard to its potential negative effects on health outcomes.AIM To conduct a systematic review to determine the prevalence of sarcopenia among adults with overweight and obesity and to investigate whether SO was associated with a higher risk of type 2 diabetes(T2 D).METHODS This study was conducted in adherence with the Preferred Reporting Items for Systematic Review and Meta-Analyses guidelines. Literature searches, study selection, methodology development and quality appraisal were performed independently by two authors and the data were collated by means of metaanalysis and narrative synthesis.RESULTS Of the 606 articles retrieved, 11 studies that comprised a total of 60118 adults with overweight and obesity of both genders met the inclusion criteria and were reviewed, revealing two main findings. First, the overall prevalence of sarcopenia is 43% in females and 42% in males who are with overweight and obesity.Secondly, the presence of SO increases the risk of T2D by 38% with respect to those without SO(OR = 1.38, 95%CI: 1.27-1.50).CONCLUSION A high prevalence of sarcopenia has been found among adults with overweight and obesity regardless of their gender and this condition seems to be associatedwith a higher risk of T2D. Clinician should be aware of this scenario in their clinical practice for the better management of both obesity and T2D.Dima Khadra Leila Itani Hana Tannir Dima Kreidieh Dana El Masri Marwan El Ghoch 2019World Journal of Diabetes2019,10,5:6
11An overview of carbon nanotubes role in heavy metals removal from wastewater显示文摘The scarcity of water, mainly in arid and semiarid areas of the world is exerting exceptional pressure on sources and necessitates offering satisfactory water for human and different uses. Water recycle/reuse has confirmed to be successful and promising in reliable water delivery. For that reason, attention is being paid to the effective treatment of alternative resources of water (other than fresh water) which includes seawater, storm water, wastewater (e.g., dealt with sewage water), and industrial wastewater. Carbon nanotubes (CNTs) are called the technology of 21st century. Nowadays CNTs have been widely used for adsorption of heavy metals from water/ wastewater due to their unique physical and chemical properties. This paper reviews some recent progress (from 2013 to 2018) in the application of CNTs for the adsorption of heavy metals in order to remove toxic pollutants from contaminated water. CNTs are expected to be a promising adsorbent in the future because of its high adsorption potential in comparison to many traditional adsorbents.Leila Ouni Ali Ramazani Saeid Taghavi Fardood 2019Frontiers of Chemical Science and Engineering2019,13,2:5
12光激酶C基因突变导致的大头精子畸形是阿尔及利亚男性不育症的最常见遗传因素显示文摘克氏综合征和Y染色体微缺失是过去针对男性不育症仅有的两项基因检测分析技术。北非男性经常出现两种罕见的畸形精子症:大头和圆头精子畸形,推荐进行AURKC和DPYl9L2基因检测。对阿尔及利亚男性不育患者进行以上基因检测,评估两种畸形精子症的患病率,并与克氏综合征和Y染色体微缺失的频率进行比较。我们对阿尔及利亚君士坦丁市的IbnRochd医院辅助生殖中心进行不育症咨询的599名患者进行了回顾性研究,其中404人存在精液参数异常现象。14人和7人分别患有典型的大头精子畸形或圆头精子畸形,进而对这些患者进行了AURKC和DPYl9L2基因分析显示,11名大头精子畸形患者存在4URKC基因突变(79%),相当于所有精液异常人群的2.7%。而5名圆头精子畸形患者,相当于1.2%的不育症患者,均存在DPYl9L2基因缺失。通过比较,我们预测该人群中克氏综合症和Y染色体微缺失的患病率分别是1.6%和0.23%。我们的研究表明AURKC基因突变较克氏综合症更常见,它是导致北非男性不育的主要遗传因素。此外,本文也预测了AURKC和DP"觋2基因缺陷发生率分别是Y染色体微缺失发生率的10倍和5倍。Leyla Ounis Abdelali Zoghmar Charles Coutton Leila Rouabah Maroua Hachemil Delphine Martinez Guillaume Martinez Ines Bellil Douadi Khelifi Christophe Arnoult Julien Faure Sebti Benbouhedja Abdelkader Rouabah Pierre F Ray 2015Asian Journal of Andrology2015,17,1:5
13Inhibition of methionine adenosyltransferase II induces FasL expression, Fas-DISC formation and caspase-8-dependent apoptotic death in T leukemic cells显示文摘蛋氨酸 adenosyltransferase II (地席 II ) 是在细胞的新陈代谢的关键酶并且从 L 蛋氨酸和 ATP 催化 S-adenosylmethionine (一样) 的形成。正常休息 T 淋巴细胞举办最小的地席 II 活动,而白血病的房间显著地显示出的激活的增殖的 T 淋巴细胞和转变 T 提高了地席 II 活动。这个工作被执行在白血病的 T 房间的幸存检验地席 II 活动和一样的生合成的角色。在一样的层次的地席 II 和结果的减少的抑制提高了 FasL mRNA 和蛋白质的表示,并且导致了圆盘(导致发信号的建筑群的死亡) 有 FADD (联系船边交货的死亡域) 和 procaspase-8 招募的形成,以及 caspase-8 激活的伴随物增加和在 c 扭动的减少铺平。开始船边交货的发信号由地席 II 抑制导致了被观察经由出价劈开连接到 mitochondrial 小径并且最终在这些房间导致增加的 caspase-3 激活和 DNA 破碎。而且,堵住地席 2A mRNA 表示,它编码地席 II 的催化子单元,用一条小介入的 RNA 途径提高了 FasL 表示和房间死亡,验证在 T 白血病的房间的幸存的地席 II 活动的必要性质。Tanvi S Jani Leila Gobejishvili Prachi T Hote Aditya S Barve Swati Joshi-Barve Giorgi Kharebava Jill Suttles Theresa Chen Craig J McClain Shirish Barve 2009Cell Research2009,19,3:5
14Cytokine and apoptosis gene polymorphisms influence the outcome of hepatitis C virus infection显示文摘BACKGROUND:Hepatitis C virus (HCV) infection is thought to be chronic and the factors leading to viral clearance or persistence are poorly understood.This study was undertaken to investigate the possibility of a significant relationship between the spontaneous clearance or the persistence of hepatitis C virus (HCV) infection and cytokine and apoptosis gene polymorphisms in Tunisian patients on hemodialysis.METHODS:Polymorphisms of the genes IL-1 (-889 IL-1α,-511 and +3954 IL-1β,IL-1Ra),IL-18 (-137 and-607),IL-12 (-1188) and Apo1/Fas (-670) were determined by PCR-RFLP,PCR-SSP and PCR-VNTR in 100 healthy blood donors and 100 patients infected with HCV and undergoing hemodialysis.The patients were classified into two groups:G1 consisted of 76 active chronic hepatitis patients (positive for HCV RNA) and G2 consisted of 24 hemodialysed patients who spontaneously eliminated the virus (negative for HCV RNA).RESULTS:The frequency of genotype association [-137GC/-607CA] IL-18 was higher in G2 (41.7%) than in G1 (15.8%) (P=0.008;OR=0.26;95% CI,0.10-0.73).We also found a higher frequency of the AA genotype of the Apo1/Fas gene in G2 (41.6%) than in G1 (17.5%) (P=0.026;OR=3.49;95% CI,1.13-10.69).Adjustment for known covariate factors (age,gender and genotype) confirmed these univariate findings and revealed that the genotype association GC-CA of the (-137 and-607) IL-18 gene and the AA genotype of the Apo1/Fas gene were associated with the clearance of HCV (P=0.041 and 0.017,respectively).CONCLUSION:The two genotypes GC-CA of the (-137 and-607) IL-18 polymorphism and the AA genotype of the Apo1/Fas gene influence the outcome of HCV infection in Tunisian patients on hemodialysis.Leila Ksiaa Cheikhrouhou Imen Sfar Hajer Aounallah-Skhiri Houda Aouadi Salwa Jendoubi-Ayed Taieb Ben Abdallah Khaled Ayed Yousr Lakhoua-Gorgi 2011Hepatobiliary & Pancreatic Diseases International2011,10,3:4
15Reduced square Bacillus thuringiensis insecticidal protein content of transgenic cotton under N deficit显示文摘To clarify the effect of the N deficit on the amount of square Bt insecticidal protein, different N application rates(0, 75, 150, 225, and 300 kg ha^–1) were imposed on the conventional cultivar Sikang 1(SK-1) and hybrid cultivar Sikang 3(SK-3) during 2015–2016 cotton growth seasons. Under different N application rates, the square number per plant, square volume and square dry weight reduced when the N rates decreased from conventional rate(300 kg ha^–1) to 0 kg ha^–1. And the square Bt protein content decreased accordingly. The analysis of N metabolism showed that soluble protein content, GPT and GOT activities decreased, free amino acid, peptidase and protease activities increased under N deficit. Correlation analysis indicated that the reduced Bt protein content under N deficit was related to altered N metabolism. In conclusion, square development and the amount of square Bt toxin both decreased under N deficit, indicating that promoting the square development under appropriate N application rate would also promote the insect resistance during squaring stage.CHEN Yuan LIU Zhen-yu Leila I.M.TAMBEL ZHANG Xiang CHEN Yuan CHEN De-hua 2021Journal of Integrative Agriculture2021,20,1:4
16Two-phase SPH modelling of waves caused by dam break over a movable bed显示文摘This paper describes the application of the Smoothed Particle Hydrodynamics(SPH) method for modeling two dimensional waves caused by dam break over a movable bed in two dimensions.The two phase SPH method is developed to solve the Navier-Stokes equations.Both fluid and sediment phases are described by particles as weakly compressible fluids and the incompressibility is achieved by the equation of state.The sediment phase is modeled as a non-Newtonian fluid using three alternative approaches of artificial viscosity and Bingham Model.In this paper,the new formulations for two-phase flows are proposed.The numerical results obtained from the developed SPH model show acceptable accuracy with comparison to experimental data.Seyedeh Leila RAZAVITOOSI Seyed Ali AYYOUBZADEH Alireza VALIZADEII 2014International Journal of Sediment Research2014,29,3:4
17Sperm quality improvement after date seed oil in Vitro supplementation in spontaneous and induced oxidative stress显示文摘在有日期种子油(DSO ) 的补充能保护的 vitro,对氢过氧化物(H2O2 ) 的精子调停了损坏和罐头改进精子功能,可能由于抗氧化剂性质。我们在在精子在调停 H2O2 的氧化损坏以后在 vitro 估计的人的精子活动性,精子生存能力,反应 acrosome 和类脂化合物 peroxidation 上测试了 DSO 的抗氧化剂效果。十六个病人(吝啬的年龄:35 年;变化:25 鈥 ? 5 年) 在 12 鈥 ? 以后为精液分析参考了斯法克斯的药教师的组织学鈥揈m 藓苔学实验室 4 月没有概念的性交被选择。在 spermiogram 以后,由二接口的不连续的基石精选坡度的精子选择被表现,并且选择精子在四试验性的试金被使用:控制;有 100 m H2O2 的孵化;有 0.1% DSO 的孵化;并且有 0.1% DSO 和 100 m H2O2 的合作孵化。活动性和生存能力用世界健康组织标准被决定。Acrosome 反应和类脂化合物 peroxidation 被分别地与荧光黄 isothiocyanate-Pisum sativum 和 malondialdehyde 的 spectrophotometric 测量染色估计。结果证明有 H2O2 的孵化独自在类脂化合物 peroxidation 导致了重要增加(57.83% , P < 0.05 ) 在精子活动性与重要减少联系了,精子生存能力(在 30 min 和 24 h 以后) 并且反应 acrosome 的百分比(P < 0.05 ) 。日期种子油在孵化的 24 h 以后改进了精子活动性(P < 0.05 ) 并且对活动性,生存能力, acrosome 反应和类脂化合物上的 H2O2 的有害效果的保护的精子 peroxidation。我们断定有 DSO 的补充可以对男不孕在抗氧化剂保护有功能。Ben A. Fatma Chakroun F. Nozha Dammak Ines Attia Hamadi Hentati Basma Ammar K. Leila 2009Asian Journal of Andrology2009,11,3:4
18微波辅助燃烧法制备镁铝尖晶石纳米粉体的研究(英文)显示文摘Stoichiometric MgAl2O4 spinel nanoparticles were synthesized by microwave assisted combustion reaction from aluminium nitrate nanohydrate(Al(NO3)3.9H2O) and Sol-Gel prepared magnesium hydroxide(Mg(OH)2) in the presence of urea((NH2)2CO) as a fuel,in about 20 min of irradiation.X-ray diffraction(XRD) studies reveal that mi-crowave assisted combustion synthesis route yields single-phase spinel nanoparticles with larger crystalline size(around 75 nm) than other conventional heating methods.Scanning electronic microscope(SEM) images show nanoparticles with spherical shape and homogenous morphology.The surface area measurements(SBET) show crystals with 2.11 m2/g and 0.0033 mL/g pore volume.Leila Torkian Mostafa M Amini Zohreh Bahrami 2011无机材料学报2011,26,5:4
19Aminobenzenesulfonamide functionalized SBA-15 nanoporous molecular sieve: A new and promising adsorbent for preconcentration of lead and copper ions显示文摘A rapid method for the extraction and monitoring of nanogram level of Pb2+ and Cu2+ ions using uniform silanized mesopor (SBA-15) functionalized with aminobenzenesulfonamide groups and flame atomic absorption spectrometry (FAAS) is presented. Aminobenzenesulfonamide functionalized SBA-15 was synthesized according to procedure in the literature and the presence of organic groups in the silica framework was demonstrated by FT-IR spectra. The functionalized product showed the BET surface area 110 m2/g and pore diameter 5.1 nm, based on adsorption-desorption of N2 at 77 K. The effect of several variables such as (amount of adsorbent, stirring time, pH and presence of other ions in the medium) has been studied. Lead and copper were completely extracted at pH greater than 3 after stirring for 10 min. The maximum capacity of the adsorbent was found to be 191.3 ± 1.4 and 155.0 ± 1.0 μg of lead and copper ions/mg functionalized SBA-15, respectively. The preconcentration factor of the method was found to be 200. The detection limit of the technique was 3.4 and 0.4 ng/mL for Pb2+ and Cu2+, respectively. The applications of this methodology for real samples were examined by various water type, black tea and pepper samples.Leila Hajiaghababaei Babak Ghasemi Alireza Badiei Hassan Goldooz Mohammad Reza Ganjali Ghodsi Mohammadi Ziarani 2012Journal of Environmental Sciences2012,24,7:3
20Should we change our approach to resuscitating victims of femoral fracture?A clinical experience in a busy trauma hospital in Shiraz,Iran显示文摘Purpose Traumatic hemorrhagic shock is a life-threatening event worldwide.Severe brain trauma accompanying femoral fractures can trigger inflammatory responses in the body and increase pre-inflammatory cytokines such as TNF-α,IL-1.The primary treatment in these cases is hydration with crystalloids,which has both benefits and complications.The purpose of this study was to investigate the effects of fluid therapy on the hemodynamics,coagulation profiles,and blood gases in such patients.Methods In this cross-sectional study,patients were divided into two groups:femoral fracture group and non-femoral group.The hemodynamic status,coagulation profile,and blood gases of patients in both groups were evaluated upon arrival at the hospital and again 2 h later.Data were analyzed by t-test and ANOVA with repeated data and paired samples t-test.Results A total of 681 trauma patients(605 men and 76 women)participated in this study,including 69(86.3%)men and 11(13.8%)women in femoral fracture group and 536 men(89.2%)and 65 women(10.8%)in non-femoral group.The laboratory parameters were evaluated in response to the equal amount of crystalloid fluid given upon arrival and 2 h later.Blood gases decreased in the fracture group despite fluid therapy(p<0.003),and the coagulation profile worsened although the change was not statistically significant.Conclusion The treatment of multiple-trauma patients with femoral bone fractures should be more concerned with the need for the infusion of vasopressors such as norepinephrine.If there is evidence of clinical shock,excessive crystalloid infusion(limited to 1 L)should be avoided,and blood and blood products should be started as soon as possible.Shahram Paydar Ali Taheri Akerdi Sadra Nikseresht Hossein Abdolrahimzadeh-Fard Leila Shayan Zahra Ghahramani Shahram Bolandparvaz Hamid Reza Abbasi 2021Chinese Journal of Traumatology2021,24,1:3
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