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1719篇 您的检索式:作者名="SHARIF"
    题名 作者 年代 出处 被引量
1采用PCR-DGGE技术分析蛋鸡肠道细菌种群结构及多样性显示文摘利用基于16S rDNA的PCR-DGGE(变性梯度凝胶电泳)图谱技术结合特异性和共性条带割胶回收DNA进行克隆和测序,对2、4、6和8周龄蛋鸡嗉囊、十二指肠、空肠、回肠和盲肠内容物细菌群落的结构和多样性进行了比较,并鉴定了8周龄蛋鸡部分特异性和共性群落成员,分析蛋鸡年龄和肠段部位对微生物群落结构和多样性的影响。肠道菌群DGGE图谱显示肠道部位对细菌种群结构影响很大,盲肠内微生物的多样性最高,其次是回肠和空肠,嗉囊和十二指肠的微生物多样性比较低。十二指肠内细菌与其它肠段相比差异最大,其次是盲肠与其它肠段细菌组成的差异。随着蛋鸡周龄的增加,消化道微生物经历了由简单(2周)到复杂(4周),再回复简单(6周)到复杂(8周)的变化过程。DGGE图谱中共性条带序列分析表明8周龄蛋鸡消化道前段的优势细菌是三得利乳杆菌(Lactobacillus suntoryeus)、索氏梭菌(Clostridium sordellii)和大肠杆菌,盲肠中的特异性条带主要是各种不可培养的细菌以及超巨巨单胞菌(Megamonas hypermegale)和梭菌属细菌(Clostridiumspp)。该研究结果表明蛋鸡肠道部位决定细菌群落的结构和多样性,蛋鸡的周龄影响肠道细菌多样性。倪学勤 Joshua Gong Hai Yu 曾东 Shayan Sharif 周小秋 2008畜牧兽医学报2008,39,7:56
2Acute kidney injury and post-reperfusion syndrome in liver transplantation显示文摘In the past decades liver transplantation(LT) has become the treatment of choice for patients with end stage liver disease(ESLD). The chronic shortage of cadaveric organs for transplantation led to the utilization of a greater number of marginal donors such as older donors or donors after circulatory death(DCD). The improved survival of transplanted patients has increased the frequency of long-term complications, in particular chronic kidney disease(CKD). Acute kidney injury(AKI) post-LT has been recently recognized as an important risk factor for the occurrence of denovo CKD in the long-term outcome. The onset of AKI post-LT is multifactorial, with pre-LT risk factors involved, including higher Model for End-stage Liver Disease score, more sever ESLD and pre-existing renal dysfunction, either with intra-operative conditions, in particular ischaemia reperfusion injury responsible for post-reperfusion syndrome(PRS) that can influence recipient's morbidity and mortality. Post-reperfusion syndrome-induced AKI is an important complication post-LT that characterizes kidney involvement caused by PRS with mechanisms not clearly understood and implication on graft and patient survival. Since preLT risk factors may influence intra-operative events responsible for PRS-induced AKI, we aim to consider all the relevant aspects involved in PRS-induced AKI in the setting of LT and to identify all studies that better clarified the specific mechanisms linking PRS and AKI. A Pub Med search was conducted using the terms liver transplantation AND acute kidney injury; liver transplantation AND post-reperfusion syndrome; acute kidney injury AND post-reperfusion syndrome; acute kidney injury AND DCD AND liver transplantation. Five hundred seventy four articles were retrieved on Pub Med search. Results were limited to title/abstract of English-language articles published between 2000 and 2015. Twenty-three studies were identified that specifically evaluated incidence, risk factors and outcome for patients developing PRS-induced AKI in liver transplantation. In order to identify intra-operative risk factors/mechanisms specifically involved in PRSinduced AKI, avoiding confounding factors, we have limited our study to 'acute kidney injury AND DCD AND liver transplantation'. Accordingly, three out of five studies were selected for our purpose.Ilaria Umbro Francesca Tinti Irene Scalera Felicity Evison Bridget Gunson Adnan Sharif James Ferguson Paolo Muiesan Anna Paola Mitterhofer 2016World Journal of Gastroenterology2016,22,42:16
3PCR-DGGE技术分析蛋鸡MHC基因对肠道细菌种群结构的影响显示文摘【目的】研究蛋鸡MHC(Major Histocompatibility Complex,主要组织相容性复合物)基因对不同周龄和不同部位肠道细菌种群结构的影响。【方法】使用基于16S rDNA的PCR-DGGE技术,结合特异性和共性条带割胶回收DNA进行克隆和测序,对2,4,6和8周龄商品蛋鸡和15I5系蛋鸡嗉囊、十二指肠、空肠、回肠和盲肠内含物细菌群落的结构和多样性进行比较,鉴定8周龄蛋鸡部分特异性和共性群落成员。【结果】商品蛋鸡和15I5系蛋鸡盲肠细菌的多样性最高,其次是回肠和空肠,嗉囊和十二指肠的细菌多样性比较低,且随着蛋鸡周龄增加,各肠段细菌多样性呈上升趋势,MHC基因对细菌多样性无显著影响。DGGE图谱聚类分析表明,蛋鸡MHC基因对4、6周龄肠道细菌的影响最大,对2周龄影响最小;而且MHC基因对消化道前段细菌的影响小于对后段影响。序列分析发现,8周龄商品蛋鸡和15I5系蛋鸡均有大量的三得利乳杆菌(Lactobacillus suntoryeus),是蛋鸡消化道前段的优势细菌;商品蛋鸡空肠、回肠和盲肠中的特异性条带主要是Ochrobactrum spp,索氏梭菌(Clostridium sordellii),超巨巨单胞菌(Megamonas hypermegale)和大量不可培养的细菌;15I5系蛋鸡的特异性条带主要是不可培养的细菌。【结论】蛋鸡MHC基因可影响不同周龄、不同肠段细菌群落的结构。倪学勤 Joshua Gong Hai Yu Shayan Sharif 曾东 2009中国农业科学2009,42,7:13
4Current and future applications of in vitro magnetic resonance spectroscopy in hepatobiliary disease显示文摘原子磁性的回声光谱学允许细胞的生物化学和新陈代谢的学习,在整个身体在活体内并且在更高的磁场力量在试管内。因为这种技术非侵略、非选择,磁性的回声光谱学方法论广泛地在生物化学和药被使用了。房间,身体液体和纸巾的在试管内磁性的回声光谱学研究在医药生物化学被使用了调查 pathophysiological 过程,更最近,这种技术被医生使用了决定疾病畸形在活体内。这个加亮的话题说明在试管内的潜力在学习肝胆管系统的磁性的回声光谱学。在恶意、非恶意的肝疾病和胆汁作文的学习的磁性的回声光谱学学习的在试管内质子和磷的角色被讨论,特别地与关联词在活体内的参考整个身体的磁性的回声光谱学应用。在摘要,磁性的回声光谱学技术能在到内在的 pathophysiological 过程的疾病严厉和指针上提供非侵略的生物化学的信息。磁性的回声光谱学为疾病简历标记,以及估计的治疗学的反应作为一个屏蔽工具保持潜在的诺言。I Jane Cox Amar Sharif Jeremy FL Cobbold Howard C Thomas Simon D Taylor-Robinson 2006World Journal of Gastroenterology2006,12,30:10
5Combination therapy using evening primrose oil and electrical stimulation to improve nerve function following a crush injury of sciatic nerve in male rats显示文摘Peripheral nerve injuries with a poor prognosis are common.Evening primrose oil(EPO) has beneficial biological effects and immunomodulatory properties.Since electrical activity plays a major role in neural regeneration,the present study investigated the effects of electrical stimulation(ES),combined with evening primrose oil(EPO),on sciatic nerve function after a crush injury in rats.In anesthetized rats,the sciatic nerve was crushed using small haemostatic forceps followed by ES and/or EPO treatment for 4 weeks.Functional recovery of the sciatic nerve was assessed using the sciatic functional index.Histopathological changes of gastrocnemius muscle atrophy were investigated by light microscopy.Electrophysiological changes were assessed by the nerve conduction velocity of sciatic nerves.Immunohistochemistry was used to determine the remyelination of the sciatic nerve following the interventions.EPO + ES,EPO,and ES obviously improved sciatic nerve function assessed by the sciatic functional index and nerve conduction velocity of the sciatic nerve at 28 days after operation.Expression of the peripheral nerve remyelination marker,protein zero(P0),was increased in the treatment groups at 28 days after operation.Muscle atrophy severity was decreased significantly while the nerve conduction velocity was increased significantly in rats with sciatic nerve injury in the injury + EPO + ES group than in the EPO or ES group.Totally speaking,the combined use of EPO and ES may produce an improving effect on the function of sciatic nerves injured by a crush.The increased expression of P0 may have contributed to improving the functional effects of combination therapy with EPO and ES as well as the electrophysiological and histopathological features of the injured peripheral nerve.Omid Badri Parviz Shahabi Jalal Abdolalizadeh Mohammad Reza Alipour Hadi Veladi Mehdi Farhoudi Mohsen Sharif Zak 2017Neural Regeneration Research2017,12,3:7
6NS1 antigen: A new beam of light in the early diagnosis of dengue infection显示文摘Objective: To evaluate NS1 antigen detection ELISA for the early laboratory diagnosis of dengue virus infection. Methods: The present study was conducted to evaluate the overall positivity of NS1 antigen detection ELISA and its comparison with viral RNA detection via real time PCR and Ig M antibodies detection by ELISA. Results: A total of 1 270 serum samples were tested 86%(1 097/1 270) were detected positive by one or more than one diagnostic test. Out of 1 270, 64%(807/1 270) were positive by NS1 ELISA and 52%(662/1 270), 51%(646/1 270) were positive by real-time RT-PCR and Ig M ELISA respectively.Conclusions: NS1 antigen detection ELISA is highly suitable diagnostic tools and it also has great value for use in outbreak and epidemic situation.Muhammad Suleman Rani Faryal Muhammad Masroor Alam Salmaan Sharif Shahzad Shaukat Uzma Bashir Aamir Adnan Khurshid Mehar Angez Massab Umair Mian Muhammad Sufian Yasir Arshad Ghulam Mujtaba Syed Sohail Zahoor Zaidi 2016Asian Pacific Journal of Tropical Medicine2016,9,12:6
7Polyoma virus nephropathy in kidney transplantation显示文摘BK virus(BKV) is a polyomavirus that is able to cause renal dysfunction in transplanted grafts via BK virusassociated nephritis(BKVAN).This condition was misdiagnosed in the past due to clinical and histopthological similarities with acute rejection.Due to the prevalence of the virus in the population,it is an important pathogen in this context,and so it is important to understand how this virus functions and its' relationship with the pathogenesis of BKVN.Screening for BKV often reveals viruria and/or viremia,which then manifests as BKVN,which can be asymptomatic or result in clinical features namely renal dysfunction.The pathogenesis of BKV infection is still unclear and needs to be further investigated; nevertheless there are a variety of hypotheses that indicate that there are a host of factors that play important roles.Treatments for BKVAN include a reduction in immunosuppression,the use of antiviral therapy or the combination of both treatment options.Jacob RW Scadden Adnan Sharif Kassi Skordilis Richard Borrows 2017World Journal of Transplantation2017,7,6:5
8Temporal pattern of resolution/recurrence of choroidal neovascularization during bevacizumab therapy for wet age-related macular degeneration显示文摘AIM:To characterize temporal pattern of resolution and recurrence of naive choroidal neovascularization(CNV) secondary to wet age-related macular degeneration(AMD) treated with intravitreal bevacizumab on as needed regimen,and to analyze baseline risk factors for CNV resolution or recurrence.METHODS:Ninety-one eyes of 80 patients with newly diagnosed wet AMD were retrospectively studied.All eyes were treated with a round of three monthly intravitreal bevacizumab injections,followed by one additional 'bonus' injection after resolution of CNV activity.During follow-up,eyes were monitored with fluorescein angiography,optical coherence tomography,and best-corrected visual acuity(BCVA).In case of recurrences of CNV activity,eyes were retreated with other rounds of bevacizumab injections following the same treatment protocol.RESULTS:Over a median follow-up of 532d,the median resolution time of CNV activity in the first,second,and third treatment round was 98d,126d,and 111d,respectively.The median recurrence time for the three rounds was 154d,126d,and 151d,respectively.No significant difference in resolution time(P=0.09) or in recurrence time(P=0.11) was detected among treatment rounds.Age(P=0.0082) and lens status(P=0.035) were found to be associated with CNV resolution;for every 1-year increase in age there was 4% greater chance of CNV resolution;Phakic eyes demonstrated a 33% better chance to experience CNV resolution than pseudophakic eyes.For CNV recurrence,lens status(P=0.0009) and gender(P=0.0446) were found to be predictive;pseudophakic eyes had a 3.69-fold greater risk to experience recurrence of CNV activity compared to phakic eyes;males had a 2.19-fold greater risk to experience recurrence of CNV activity than females.No significant BCVA changes among three treatment rounds were noted(P=0.56).CONCLUSION:Resolution time and recurrence time of CNV activity were not significantly different among treatment rounds,suggesting absence of tachyphylaxis to bevacizumab.A cautious decision should be made upon discontinuing treatment in wet AMD eyes of younger or pseudophakic patients,which showed slower response to bevacizumab.In addition,wet AMD eyes of male or pseudophakic patients should be evaluated more carefully after stopping the treatment,because they may have early reactivation of the CNV.BCVA was preserved by bevacizumab treatment despite multiple recurrences.Haiyan Wang Giulio Barteselli William R.Freeman Su Na Lee Jay Chhablani Sharif El-Emam Lingyun Cheng 2013International Journal of Ophthalmology(English edition)2013,6,5:5
9Surface modification of magnesium alloys using thermal and solid-state cold spray processes:Challenges and latest progresses显示文摘Potential engineering applications of magnesium(Mg)and Mg-based alloys,as the lightest structural metal,have made them a popular subject of study.However,the inferior corrosion and wear characteristics significantly limit their application range.It is widely recognized that surface treatment is the most commonly utilized technique for remarkably improving a substrate’s surface characteristics.Numerous methods have been introduced for the surface treatment of Mg and Mg-based alloys to improve their corrosion behavior and tribological performance.Among these,thermal spray(TS)technology provides several methods for deposition of various functional metallic,ceramic,cermet,or other coatings tailored to particular conditions.Recent researches have shown the tremendous potential for thermal spray coated Mg alloys for biomedical and industrial applications.In this context,the cold spray(CS)method,as a comparatively new TS coating technique,can generate the coating layer using kinetic energy rather than combined thermal and kinetic energies,like the high-velocity oxy-fuel(HVOF)spray method.Moreover,the CS process,as a revolutionary method,is able to repair and refurbish with a faster turnaround time;it also provides solutions that do not require dealing with the thermal stresses that are part of the other repair processes,such as welding or other TS processes using a high-temperature flame.In this review paper,the recently designed coatings that are specifically applied to Mg alloys(primarily for industrial applications)employing various coating processes are reviewed.Because of the increased utilization of CS technology for both 3D printed(additively manufactured)coatings and repair of structurally critical components,the most recent CS methods for the surface treatment,repair,and refurbishment of Mg alloys as well as their benefits and restrictions are then discussed and reviewed in detail.Lastly,the prospects of this field of study are briefly discussed,along with a summary of the presented work.Mohammadreza Daroonparvar Hamid Reza Bakhsheshi-Rad Abbas Saberi Mahmood Razzaghi Ashish K Kasar Seeram Ramakrishna Pradeep L.Menezes Manoranjan Misra Ahmad Fauzi Ismail Safian Sharif Filippo Berto 2022Journal of Magnesium and Alloys2022,10,8:4
10Autonomic dysreflexia: a cardiovascular disorder following spinal cord injury显示文摘Autonomic dysreflexia(AD) is a serious cardiovascular disorder in patients with spinal cord injury(SCI). The primary underlying cause of AD is loss of supraspinal control over sympathetic preganglionic neurons(SPNs) caudal to the injury, which renders the SPNs hyper-responsive to stimulation. Central maladaptive plasticity, including C-fiber sprouting and propriospinal fiber proliferation exaggerates noxious afferent transmission to the SPNs, causing them to release massive sympathetic discharges that result in severe hypertensive episodes. In parallel, upregulated peripheral vascular sensitivity following SCI exacerbates the hypertensive response by augmenting gastric and pelvic vasoconstriction. Currently, the majority of clinically employed treatments for AD involve anti-hypertensive medications and Botox injections to the bladder. Although these approaches mitigate the severity of AD, they only yield transient effects and target the effector organs, rather than addressing the primary issue of central sympathetic dysregulation. As such, strategies that aim to restore supraspinal reinnervation of SPNs to improve cardiovascular sympathetic regulation are likely more effective for AD. Recent pre-clinical investigations show that cell transplantation therapy is efficacious in reestablishing spinal sympathetic connections and improving hemodynamic performance, which holds promise as a potential therapeutic approach.Hisham Sharif Shaoping Hou 2017Neural Regeneration Research2017,12,9:4
11Environmental impact of aquaculture-sedimentation and nutrient loadings from shrimp culture of the southeast coastal region of the Bay of Bengal显示文摘Nutrient loadings were measured for surface seawater and bottom sediments of semi intensive and improved extensive shrimp culture pond, adjacent estuary, and fallow land in the south east coastal region of Bangladesh during August, 2000—January, 2001 to evaluate the impact of shrimp culture. The mean levels of nutrients found in the pond surface water were 108 780 mg/L for CaCO 3, 0 526 mg/L for NH + 4 N, 3 075 wt% for organic carbon, 7 00 mg/L for PO 4 P, 5 57 mg/L for NO 3 N, and 7 33 mg/L for chlorophyll a. The maximum mean value of H 2S(0 232 mg/L) was found in estuarine water. Nutrients loading were found to be decreased with distance from the shrimp farm discharge unit in estuarine water. The mean level of organic matter, total nitrogen, and organic carbon were found in higher concentrations in sediments of cultured pond compared to bottom soil of adjacent fallow land at the same elevation. Extractable Ca values were found in higher concentration(550 33 ppt) in adjacent fallow land, as the shrimps for molting in shrimp ponds use extractable Ca. The relation between seawater H 2S value and sediment pH ( r= -0 94); sediment organic carbon and sediment pH values ( r= -0 76), sediment total nitrogen and sediment pH ( r= - 0 74) were found to be highly negatively correlated. Whereas the relation between seawater H 2S value and sediment total nitrogen ( r= 0 92), water NH + 4 N and sediment pH ( r= 0 66) were found to be positively correlated. The results revealed that load of nutrients at eutrophic level in estuarine water, and decrease of soil pH; leading to acid sulphate soil formation indicates a negative impact of shrimp culture.Biplob Das Yusuf Sharif Ahmed Khan Pranab Das 2004Journal of Environmental Sciences2004,16,3:4
12Indian medicinal herbs as sources of antioxidants显示文摘Shahin Sharif Ali Naresh Kasoju Abhinav Luthra Angad Singh Hallihosur Sharanabasava Abhishek Sahu Utpal Bora 2007Food Research International2007,,1:4
13Impact of direct acting antivirals on occurrence and recurrence of hepatocellular carcinoma: Biologically plausible or an epiphenomenon?显示文摘Hepatocellular carcinoma(HCC) is a major cause of morbidity and mortality worldwide. Chronic hepatitis C virus infection(HCV) is the most common cause of HCC in many European countries, Japan and Pakistan. Introduction of the new direct acting antivirals(DAAs) has revolutionized the management of HCV worldwide, with high rates of sustained virologic response in patients who could not have tolerated the previous interferon based treatments. However, recently there have been reports raising caution about the long term effects of DAAs, particularly a possible increased risk of HCC. Therefore this review explores the current molecular studies as well as clinical data that investigate the impact of DAAs on occurrence and recurrence of HCC.Amna Subhan Butt Fatima Sharif Shahab Abid 2018World Journal of Hepatology2018,10,2:4
14A journey towards shared governance: status and prospects for collaborative management in the protected areas of Bangladesh显示文摘Establishment of Protected Areas (PAs), in the face of rapid deforestation, forest degradation and climate change has been one of the key efforts in conservation of biodiversity worldwide in recent times. While Bangladesh has gained a degree of prominence in the world for its successful social forestry programs, the concept of collaborative protected area management is rather new in the country, initiated in 2004 by the Bangladesh Forest Department in five PAs with financial assistance from USAID. Based on empirical evidence from three of the pilot PAs, we examined the achievements and associated challenges and prospects for co-management. Our fieldwork revealed a number of challenges faced by co-management institutions: (1) institutions were dominated by the elite group, overshadowing the voice of the community people; (2) mutual trust and collective performance are key to good governance but had not taken root in the PAs; (3) encroachment onto forest land and subsequent conversion to agriculture remained a serious problem that discouraged forest-dependent people from participating actively in co-management initiatives; (4) legal provisions (including acts, rules and policies) were not clearly and adequately disseminated and understood at the community level; (5) there remained a degree of ambiguity regarding the roles and responsibilities of forest department (FD) and co-management committees (CMC) in field operations, and this was not enhancing transparency and accountability of the overall initiative; (6) the long-term sustainability of co-management institutions was another major concern, as the local intuitional structure was still in a nascent stage, and provisioning of resources (either internally or externally) remained somewhat uncertain. We offer recommendations for improvement.A. Z. M. Manzoor Rashid Donna Craig Sharif Ahmed Mukul Niaz Ahmed Khan 2013Journal of Forestry Research2013,24,3:4
15Maize orthologs of rice GS5 and their transregulator are associated with kernel development显示文摘Genome information from model species such as rice can assist in the cloning of genes in a complex genome,such as maize.Here,we identified a maize ortholog of rice GS5 that contributes to kernel development in maize.The genomewide association analysis of the expression levels of ZmGS5,and 15 of its 26 paralogs,identified a trans-regulator on chromosome 7,which was a BAKi-like gene.This gene that we named as ZmBAK1-7 could regulate the expression of ZmGS5 and three of the paralogs.Candidate-gene association analyses revealed that these five genes were associated with maize kernel development-related traits.Linkage analyses also detected that ZmGSs and ZmBAK1-7 co-localized with mapped QTLs.A transgenic analysis of ZmGS5 in Arabidopsis thaliana L.showed a significant increase in seed weight and cell number,suggesting that ZmGS5 may have a conserved function among different plant species that affects seed development.Jie Liu Min Deng Huan Guo Sharif Raihan Jingyun Luo Yuancheng Xu Xiaofei Dong Jianbing Yan 2015Journal of Integrative Plant Biology2015,57,11:4
16Bone graft substitutes for spine fusion: A brief review显示文摘Bone graft substitutes are widely used in the field of orthopedics and are extensively used to promote vertebral fusion. Fusion is the most common technique in spine surgery and is used to treat morbidities and relieve discomfort. Allograft and autograft bone substitutes are currently the most commonly used bone grafts to promote fusion. These approaches pose limitations and present complications to the patient. Numerous alternative bone graft substitutes are on the market or have been developed and proposed for application. These options have attempted to promote spine fusion by enhancing osteogenic properties. In this review, we reviewed biology of spine fusion and the current advances in biomedical materials and biological strategies for application in surgical spine fusion. Our findings illustrate that, while many bone graft substitutes perform well as bone graft extenders, only osteoinductive proteins(recombinant bone morphogenetic proteins-2 and osteogenic protein-1) provide evidence for use as both bone enhancers and bone substitutes for specific types of spinal fusion. Tissue engineered hydrogels, synthetic polymer composites and viral based gene therapy also holds the potential to be used for spine fusion in future, though warrants further investigation to be used in clinical practice.Ashim Gupta Nitin Kukkar Kevin Sharif Benjamin J Main Christine E Albers Saadiq F El-Amin Ⅲ 2015World Journal of Orthopedics2015,6,6:4
17Cattle toxoplasmosis in Iran:a systematic review and meta-analysis显示文摘Objective:To analyze and review the overall seroprevalence rate of Toxoplasma gondii(T.gondii) infection in cattle from Iran.Methods:In the current study,data collection(published and unpublished papers,abstracts of national scientific congresses and dissertations) using particular terms was carried out systematically on the following electronic databases like PubMed,Google Scholar,Ebsco,Science Direct,Scopus,Magiran,Irandoc,IranMedex and SID(Scientific Information Database).Results:A total of 22 studies since 1983 to 2012 reporting the seroprevalence of toxoplasmosis in cattle from different regions of Iran met our eligibility criteria.The pooled proportion of toxoplasmosis,using random effect model,among cattle in Iran from over the 30-year period was estimated 18.1%(95%CI:9.9%to 28.2%).Conclusions:This study firstly establishes a crude seroprevalence rate of Toxoplasma infection in cattle which can lead us to understand the condition of eattle toxoplasmosis,which have to take into accounted fur an appropriate and effective prevention and controls.Secondly,it compares and discusses elaborately the role of risk factors including sex,age and breed in the epidemiology of the disease.Thus,it determines gaps and drawbacks in the prior studies which are greatly useful to design more accurate investigations in the future.Shahabeddin Sarvi Ahmad Daryani Mohammad Taghi Rahimi Mohsen Aarabi Azar Shokri Ehsan Ahmadpour Azadeh Mizani Mahdi Sharif 2015Asian Pacific Journal of Tropical Medicine2015,8,2:4
18熔渣干式粒化与集成热能回收显示文摘全球钢铁行业每年有数以亿吨计的熔渣产生,并且越来越多的高炉渣通过水淬粒化处理而生产一种玻璃质产品。这种物质作为硅酸盐水泥的替代物,可以带来可观的价值增值,同时减少了由于石灰石煅烧而产生的CO2排放。然而,水淬粒化渣处理却需要消耗大量的水资源,并且可能带来有害气体排放。更为重要的是,现有的渣处理工艺没有回收其中所含有的热量(大约1.8GJ/t渣)。熔渣干式粒化(DSG)是渣处理领域发生的根本性变革。在这种新的处理方法中,熔渣在旋转盘中由于离心力的作用而自动分离,产生的熔滴在空气的作用下快速急冷固化,同时可回收热能。由DSG工艺处理得到的固态粒渣适用于生产水泥,同时产生的热空气(约500~600℃)可作为现场就地利用的热源。DSG工艺同水淬法相比,在节水、减少排放、余热回收、减少能源消耗和温室气体排放等方面,提供了一种更加可持续的处理方法。澳大利亚联邦科学与工业研究组织对DSG工艺的研究始于2002年,并且在工艺设计创新方面已经取得重大的突破。近期与博思格和一钢公司(澳大利亚钢铁行业CO2减排关键问题解决计划成员之一)合作,研究工作已经拓展到了渣中的热能回收方面。试验设备的应用已经成功验证了这种处理理念,渣处理能力达到了10kg/min,渣处理产品的评估以及初步的技术经济分析取得了令人满意的结果。新工艺的处理规模扩大了一个数量级,并且建造了一个半工业化规模的装置(渣处理能力提高到了100kg/min),业已投入运行,用于对工艺设计进行深度优化和论证。如果一切顺利的话,计划在两年内建立一个更具规模的工业化工厂(熔渣放流速度达到1~2t/min)。介绍了这项新工艺的进展情况,并对近期的一些进展进行了总结。Sharif Jahanshahi Dongsheng Xie Yuhua Pan Phil Ridgeway John Mathieson 房多奎(译) 肖永力(校) 2012世界钢铁2012,12,4:3
19Tissue tropism and parasite burden of Toxoplasma gondii RH strain in experimentally infected mice显示文摘Objective:To evaluate parasite distribution and tissue tropism of Toxoplasma gondii tachyzoites in experimentally infected mice using real time QPCR.Methods:In this survey 16 Balb/c mice were inoculated with 1×10~4 alive tachyzoites of Toxoplasma gondii RH strain.After 1,2,3 days post infection and the last day(before death),different tissues of mice including blood,brain,eye,liver,spleen,kidney,heart and muscle were harvested.Following tissues DNA extraction,the parasite burden was quantified using real time QPCR targeting the B1 gene(451 bp).Results:It showed that Toxoplasma after intraperitoneal injection was able to movement to various tissues in24 hours.Parasite burden was high in all tissues but the most number of parasites were observed in kidney,heart and liver,respectively.Conclusions:These data provide significant baseline information about Toxoplasma pathogenesis,vaccine monitoring and drug efficiency.Yousef Dadimoghaddam Ahmad Daryani Mehdi Sharif Ehsan Ahmadpour Zahra Hossienikhah 2014Asian Pacific Journal of Tropical Medicine2014,7,7:3
20Production of High Purity Multi-Walled Carbon Nanotubes from Catalytic Decomposition of Methane显示文摘当催化剂被描述,与 NiO/TiO2 经由甲烷的催化分解生产的多围的碳 nanotubes (MWNT ) 的 Acid-based 纯化过程。由在空和酸倒流中联合氧化,杂质例如非结晶的碳,碳 nanoparticles,和 NiO/TiO2 催化剂,被消除。扫描电子显微检查法(SEM ) 和传播电子显微检查法(TEM ) 想象证实杂质的移动。碳 nanotubes 纯净的百分比用热 gravimetric (TGA ) 被分析。用这个过程, MWNT 的 99.9 wt% 纯净被获得。给词调音:多围的碳 nanotubes;纯化;酸倒流;氧化;甲烷;Kong Bee Hong Aidawati Azlin Binti Ismail Mohamed Ezzaham Bin Mohd Mahayuddin Abdul Rahman Mohamed Sharif Hussein Sharif Zein 2006Journal of Natural Gas Chemistry2006,15,4:3
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