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Effect of Various Nutrient Sources on Seedling Growth of Annona Muricata Linn. 不同营养源对村田番荔枝幼苗生长的影响。
Pub Date : 2019-07-25 DOI: 10.32861/jbr.57.57.63
Dada C. A., Kayode J., Arowosegbe S., Olaniyi T. A.
The impact of nutrient sources cannot be over emphasised in plant growth. Seedlings of Annona muricata were subjected to organic fertilizers, inorganic fertilizers and fertilizer-free treatmentsin this study. The organic fertilizers comprises of cow dung, poultry manure and water hyacinth, while NPK fertilizer was used as the inorganic manure and Top soil without fertilizer application was used as the control. The organic fertilizers were singly used and mixed at the rate of 100kg/ha and 200kg/ha while the inorganic fertilizer was used at the rate 100kg/ha and 200kg/ha. The parameters taken were plant height, stem girth, leaf area and leaf production. Results obtained showed that poultry manure produced the tallest plants (23.50cm) at 3months after transplanting though this was not significantly different from those of cow dung manure (23.00cm). NPK fertilizer produced the plant with highest leaf area (32.75cm) and stem girth (2.25cm) at 3 months after transplanting and was not significantly different from the organic fertilizers (Poultry manure 200g/ha, Cow dung 200g/ha, Water hyacinth 100g/ha and 200g/ha). NPK fertilizer also produced the highest number of leaves at the end of the three month assessment (31.00cm). All the growth parameters observed showed that the control experiment gave the least performance. The results obtained tend to suggest that the use of NPK fertilizer should be recommended for growing Annona muricata and improvement of the soil nutrients level.
营养来源对植物生长的影响再怎么强调也不为过。采用有机肥、无机肥和免肥三种处理方法,对村栗幼苗进行了试验。有机肥由牛粪、禽粪和水葫芦组成,无机肥采用氮磷钾肥,对照采用不施肥的表层土。有机肥单独施用,按100、200公斤/公顷混合施用,无机肥按100、200公斤/公顷混合施用。测定的参数为株高、茎周长、叶面积和叶片产量。结果表明,在移栽后3个月,家禽粪的植株最高(23.50cm),与牛粪(23.00cm)差异不显著;氮磷钾在移栽后3个月使植株叶面积(32.75cm)和茎周长(2.25cm)最高,与有机肥(禽粪200g/ha、牛粪200g/ha、水葫芦100g/ha和200g/ha)差异不显著。在3个月评估结束时,氮磷钾肥的叶片数也最高(31.00cm)。所有生长参数的观察结果表明,对照试验的生长性能最差。研究结果表明,应推荐施用氮磷钾肥,以提高黄麻种植和土壤养分水平。
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引用次数: 0
Communal Use of Breeding Bulls on Bull Stations, Natural Mating and Artificial Insemination in Ethiopian Smallholder Dairy Farming Systems 埃塞俄比亚小农奶牛养殖系统中公牛站的共同使用、自然交配和人工授精
Pub Date : 2019-06-20 DOI: 10.32861/jbr.56.50.56
Z. Goraga, A. Funga, T. Fekadu, S. Ali, Gemeda Tuntuna, Zenebe Tesfa, Eyob G. Egziyabher, Ejigayehu Demisse
The study was carried out to characterize Ethiopian smallholder farmers’ practice and indigenous knowledge on bull station service and adoption of different mating systems. A total of 62 respondents were selected from the smallholder dairy farming communities representing three districts in the Oromia region. A multistage sampling procedure was used to select sampling areas and respondents. A standardized questionnaire was used to collect qualitative and quantitative data using person to person interview. Data were analyzed using descriptive statistical procedures of SPSS. According to the findings of the study, Ethiopian smallholder dairy farmers are using both bull service and artificial insemination for dairy cattle breeding. The bulls used for mating are either those bulls kept for communal use at bull stations or bulls belong to individual farmers. The sources of all those bulls were research centers (15.5%), NGOs (37.5%), cooperatives (7.8%), born and grown at farmers’ own farms (10%) and other sources (29.2%). About 79% of the interviewed respondents were participants of bull station service and above 63% of them started to participate in less than a decade ago. In bull station, one bull did serve 3 to 30 females per week. In addition to the bull service, considerable numbers of farmers were using artificial insemination. The study revealed that both natural mating and artificial insemination methods are acceptable as appropriate mating systems and have their own advantage and disadvantages. So, bull service can be further adopted as an option for improving dairy production and productivity at smallholder farmers’ level particularly in areas where there is limited access for an efficient AI service. The study provided valuable information that can support the importance of using bull station services and adopt different mating systems to improve dairy cattle production and productivity in smallholder dairy farming systems in Ethiopia.
该研究旨在描述埃塞俄比亚小农在牛场服务和采用不同交配制度方面的做法和土著知识。共有62名受访者是从奥罗米亚地区代表三个地区的小农户奶农社区中选出的。采用多阶段抽样程序选择抽样地区和被调查者。采用标准化问卷,采用面对面访谈的方式收集定性和定量数据。数据采用SPSS描述性统计程序进行分析。根据这项研究的结果,埃塞俄比亚的小奶农正在使用公牛服务和人工授精来饲养奶牛。用于交配的公牛要么是公牛站公共使用的公牛,要么是属于个体农民的公牛。所有这些公牛的来源是研究中心(15.5%),非政府组织(37.5%),合作社(7.8%),在农民自己的农场出生和成长(10%)和其他来源(29.2%)。约79%的受访者是牛站服务的参与者,其中63%以上的人是在10年内开始参与牛站服务的。在公牛站,一头公牛每周确实服务3到30只雌性。除了公牛服务,相当多的农民使用人工授精。研究表明,自然交配和人工授精都是合适的交配方式,各有优缺点。因此,公牛服务可以进一步作为提高小农乳制品产量和生产力的一种选择,特别是在无法获得高效人工智能服务的地区。该研究提供了有价值的信息,可以支持利用牛站服务和采用不同的交配系统来提高埃塞俄比亚小农奶牛养殖系统的奶牛产量和生产力的重要性。
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引用次数: 0
Studying the candida resistance and sensitivity for some antifungals 研究念珠菌对某些抗真菌药物的耐药性和敏感性
Pub Date : 2019-06-01 DOI: 10.24126/jobrc.2019.13.2.578
Humam Hussein, B. Dheeb, T. Hamada
Back ground: The current study included 150 samples from patients with Candida from a hospital of Medical City / education labs - Baghdad, and ranged in age from (10 – 65(years for both sexes, all isolates taken from different sources (Lower respiratory tract, Urine, Skin, Vaginal and Oral thrux), where the number of males (55(as a percentage (37%) while the number of females (95) as a percentage (63%). The objective: The objectives of this study are studying resistance and sensitivity of candida spp to some antifungals. Material and methods: All the required material which used for the study, and the direct examination was conducted using potassium hydroxide KOH 10%, As well as microscopic examination and laboratory transplantation for all samples, for the purpose of investigating the candidiasis. Also Vitek System examination was conducted on all positive samples for microscopy and laboratory culturing; and so to be diagnosed on the species level, and this study included using (3) anti-fungal equipped from Himedia (India), an  (Fluconazole, Clotrimazole and Nystatin), anti-fungal used by standard disk Diffusion to know the resistance of Candida and its sensitivity toward used anti-fungal. The results: The results of direct examination were vaginal swab (50), Sputum (28), Oral swab (34), Urine (21) and Skin swab (17). Conclusion: Candidiasis was more common in female patients as well as from medical units, where the rate of infection in females more than in males, Candida species were identified by the manual and automated methods and we found that the automated method by using VITEK2 YST Card was the best for species identification.
背景:目前的研究包括来自巴格达医疗城/教育实验室医院的念珠菌患者的150个样本,年龄从10 - 65岁不等(男女均为65岁),所有分离株均来自不同来源(下呼吸道、尿液、皮肤、阴道和口腔分泌物),其中男性占55%(占37%),女性占95%(占63%)。目的:研究念珠菌对某些抗真菌药物的耐药性和敏感性。材料和方法:采用本研究所需材料,用氢氧化钾KOH 10%直接检查,并对所有样品进行显微镜检查和实验室移植,目的是调查念珠菌病。对所有阳性样品进行显微镜和实验室培养的Vitek系统检查;本研究采用(3)印度Himedia公司配备的抗真菌药(氟康唑、克霉唑和制霉菌素)和标准盘片扩散法使用的抗真菌药,了解念珠菌的耐药性及其对所用抗真菌药的敏感性。结果:直接检查结果为阴道拭子50例,痰拭子28例,口腔拭子34例,尿液21例,皮肤拭子17例。结论:念珠菌病多见于女性患者和医疗单位,女性感染率高于男性,采用人工和自动化方法鉴定念珠菌种类,其中使用VITEK2 YST卡的自动化方法鉴定种类最好。
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引用次数: 12
The clinical aspect of overweight on rheumatoid arthritis and disease activity 超重对类风湿关节炎和疾病活动性的临床影响
Pub Date : 2019-06-01 DOI: 10.24126/jobrc.2019.13.2.576
Haitham Ahmed, T. A. al-Sadoon, Khudhair A. Khudhair
Objective: To investigate the influence of obesity on disease activity in rheumatoid arthritis patients and to determine a probable connection with the acute phase response.                                          Materials and methods: The recruited patients satisfied the criteria from the American College of Rheumatology (ACR). To evaluate the body mass index (BMI), anthropometric tests were carried out at the Rheumatology Department at Baquba Teaching Hospital, which has a consultation unit. The serum levels of anti-cyclic citrullinated peptide antibodies (anti-CCP) were measured from blood samples taken through the particle-enhanced (latex) immunonephelometry assays on the genius analyser (CO, Ltd. China) and test kits from IMTEC-CCP-Antibodies. RF screen and serological tests (latex) were carried out to determine the C-reactive protein (CRP), measure Hb and the total WBCs count, the erythrocyte sedimentation rate (ESR) was also carried out.                                                                                                                                                                        Results: The current study findings from the sample of RA patients showed that the proportion of patients falling into the overweight classification (BMI 25-29) was 80.6% while the obese classification (BMI 30-35) was 33.33%. Among the RF and ACCP-positive cases, a marginally stronger relationship between the development of RA and the history of obesity was found. Additionally, a significant correlation between acute phase response and free mass was found in RA patients (anti-CCP p-value≤ 0.00021 ESR p≤ 0.00072 Hb p≤ 0.00054, and W.B.C p =≤ 0.000.94, CRP p≤1).                                                                                                     Conclusion: The present study’s findings show an elevated prevalence of high body mass among the RA patients. Furthermore, a linear association existed between the fat free mass and the acute phase response.
目的:探讨肥胖对类风湿关节炎患者疾病活动性的影响,并确定其与急性期反应的可能联系。材料和方法:入选的患者符合美国风湿病学会(ACR)的标准。为了评估身体质量指数(BMI),在巴古巴教学医院风湿病科进行了人体测量测试,该医院设有一个咨询单位。采用genius分析仪(CO, Ltd.)的颗粒增强(乳胶)免疫比浊法测定血样中抗环瓜氨酸肽抗体(anti-CCP)的血清水平。中国)和来自IMTEC-CCP-Antibodies的检测试剂盒。射频屏幕和血清学测试(乳胶)进行了确定c反应蛋白(CRP),测量Hb和白细胞总数、红细胞沉降率(ESR)也进行了 .                                                                                                                                                                        结果:目前对RA患者样本的研究发现,属于超重(BMI 25-29)的患者比例为80.6%,属于肥胖(BMI 30-35)的患者比例为33.33%。在RF和accp阳性病例中,发现RA的发展与肥胖史之间的关系略强。此外,急性期反应和自由之间的显著相关性质量被发现在RA患者(anti-CCP假定值≤0.00021 ESR p≤0.00072 Hb p≤0.00054,和W.B.C p =≤0.000.94,c反应蛋白p≤1 ).                                                                                                     结论:本研究结果显示RA患者中高体重的患病率升高。此外,无脂肪质量与急性期反应之间存在线性关联。
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引用次数: 1
Review of Pharmacological Effects of Agaricus Blazei Murill and its Application in Dietotherapy 姬松茸药理作用及其在食疗中的应用研究进展
Pub Date : 2019-05-20 DOI: 10.32861/jbr.55.46.49
Xiang Li, Pei-lin Xu, Wendi Huang, Rui Li
Agaricus blazei Murill (ABM) also known as Brazilian mushroom, originated in Brazil and Peru, is a kind of edible and medicinal fungus. It is neutral in nature and sweet in taste, distributed in heart, lung, liver and kidney channels. It has high nutritional value and medical efficacy and is rich in protein, polysaccharides, vitamins, minerals and unsaturated fatty acids. Its pharmacological ingredients mainly include nucleic acid, exogenous lectin, sterols, fatty acids and polysaccharides. It also has the effect of anti-cancer, anti-tumor, immune regulation, anti-inflammatory activity, protection of liver and kidney, treatment of diabetes, antioxidant activity, anti-fatigue effect, prevention and treatment of leukemia, asthma, and radiation injury. It can strengthen health and promote hematopoiesis. With the improvement of people’s living standards and the advancement of science and technology, many diseases already have better treatments and the average life expectancy is greatly extended. With the development of food industry, medicine and other related industries, some foods with unique medicinal effects and values such as glossy ganoderma, cordyceps sinensis and Agaricus blazei Murill have been re-recognized and used. The use of these pharmacological foods for disease prevention and treatment has become a trend. For example, the nutrients of relevant foods are extracted to make health-care products and patients are given corresponding solution to assist their treatments. Some progress has been made in realizing the pharmacological effects and dietary applications of Agaricus blazei Murill. This paper will analyze and summarize the results of current researches of pharmacological effect and application in dietotherapy of Agaricus blazei Murill, which is helpful to improve people’s understanding of its medicinal effects and to provide rich experience in dietary therapy and experimental basis. With the further research on the pharmacological effects of Agaricus blazei Murill, it will be more widely used in food therapy.
巴西蘑菇(Agaricus blazei Murill, ABM)又称巴西蘑菇,原产于巴西和秘鲁,是一种食药用菌。性中性,味甘,分布于心、肺、肝、肾经。它含有丰富的蛋白质、多糖、维生素、矿物质和不饱和脂肪酸,具有很高的营养价值和药用功效。其药理成分主要包括核酸、外源性凝集素、甾醇、脂肪酸和多糖。还具有抗癌、抗肿瘤、调节免疫、抗炎、保护肝肾、治疗糖尿病、抗氧化、抗疲劳、防治白血病、哮喘、辐射损伤等作用。它可以强身健体,促进造血。随着人们生活水平的提高和科学技术的进步,许多疾病已经有了更好的治疗方法,平均预期寿命大大延长。随着食品工业、医药等相关行业的发展,灵芝、冬虫夏草、姬松茸等具有独特药用价值的食品得到了重新认可和利用。利用这些药理食品预防和治疗疾病已成为一种趋势。例如,提取相关食品中的营养成分制成保健品,并给予患者相应的溶液以辅助其治疗。在认识姬松茸的药理作用及其在膳食中的应用方面取得了一些进展。本文将对姬松茸的药理作用及其在食疗中的应用研究现状进行分析和总结,有助于提高人们对姬松茸药理作用的认识,为姬松茸食疗提供丰富的经验和实验依据。随着对姬松茸药理作用的进一步研究,它将在食疗中得到更广泛的应用。
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引用次数: 1
Isolation and Molecular Marker Detection of Badh2 Gene from Aromatic Rice Germplasm Resources in Southern Henan 豫南香稻种质资源中Badh2基因的分离及分子标记检测
Pub Date : 2019-04-15 DOI: 10.32861/jbr.54.35.45
Bo Peng, Yu Zhu, Zi-yu Wang, Juan Peng, Lu-Lu He, Xiayu Tian, Ziyue Liu, Ling Sun, Ying Wang, Xiao-Hua Song, Huilong Li, Yan-Yang Sun, Rui-hua Pang, Jintao Li, Quanxiu Wang, Wei Zhou, Hongyu Yuan
The production of aroma in aromatic rice is due to the increase of 2-acetyl-1-pyrroline (2-AP) precursor substances caused by the functional deletion of Badh2 gene on chromosome 8, and the accumulation of 2AP makes rice produce aroma. In this study, Badh2 gene was isolated and cloned from 18 representative aromatic rice cultivars in Southern Henan, and the bioinformatics analysis of Badh2 gene was carried out. Meanwhile, seven functional molecular markers developed by Badh2 gene were used to detect and analyze Badh2 gene in 18 aromatic rice varieties from Southern Henan. The results showed that the coding region of Badh2 gene was 1509 bp in length. It contained 15 exons and 14 introns, and encoded 503 amino acids. There are many types of variation of the Badh2 gene in the 18 aromatic rice varieties. According to the variation of Badh2 gene, the tested aromatic rice varieties could be divided into three groups, among which Xinxianggeng 1, Xiangnuo 25, Heixiangdao 193 and Xiangbao 2 were concentrated in group Ⅰ, while the other 14 kinds of aromatic rice were concentrated in group II. Seven functional molecular markers of Badh2 gene were used to detect different varieties mutation types in exon 2, exon 4~5, exon 7 and exon 13 of Badh2 gene. No aromatic rice varieties with different mutation types were found in promoter region, exon 12 and exon 14 of Badh2 gene. Therefore, our results provide important information for understanding the genetic basis of fragrant genes in aromatic rice germplasm resources in Southern Henan and breeding new varieties of high-quality aromatic rice using molecular marker-assisted selection.
芳香水稻香气的产生是由于8号染色体上Badh2基因的功能性缺失导致2-乙酰基-1-吡咯啉(2-AP)前体物质的增加,2AP的积累使水稻产生香气。本研究从豫南18个代表性香稻品种中分离并克隆了Badh2基因,并对Badh2基因进行了生物信息学分析。同时,利用Badh2基因开发的7个功能分子标记,对18个豫南香稻品种的Badh2基因进行了检测和分析。结果表明,Badh2基因的编码区长度为1509 bp。它包含15个外显子和14个内含子,编码503个氨基酸。在18个香稻品种中,Badh2基因存在多种变异类型。根据Badh2基因的变异,所试香稻品种可分为3个群体,其中新香更1号、香诺25号、黑香道193号和香宝2号集中在Ⅰ群体,其余14种香稻集中在II群体。利用Badh2基因的7个功能分子标记检测了Badh2基因外显子2、外显子4~5、外显子7和外显子13的不同变异类型。在Badh2基因启动子区、12外显子和14外显子未发现不同突变类型的芳香水稻品种。因此,本研究结果为了解豫南香稻种质资源中芳香基因的遗传基础,以及利用分子标记辅助选择选育优质香稻新品种提供了重要信息。
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引用次数: 0
Mineral Composition and Fatty Acid Profile of Smoked Horse Mackerel Trachurus Murphyi Using an Improved Fish Smoking Kiln 改良熏鱼窑熏制马鲛鱼矿物组成及脂肪酸谱
Pub Date : 2019-03-20 DOI: 10.32861/JBR.53.28.34
Esan O. Moses
The purpose of this research was to determine the quality of mineral and fatty acid profile of imported horse mackerel Trachurus murphyi using the improved NIOMR fish smoking kiln. 20kg of frozen imported horse mackerel were obtained from Ijora frozen food market Lagos state, Nigeria. Samples were transported to the NIOMR Pilot plant for processing and commencement of chemical analysis. Results show that, the most abundant saturated fatty acid in the fish was Palmitic acid, with a value of 19.404%, while the most abundant monounsaturated fatty acid was Elaidic acid with a value of 12.63%. However, low values of polyunsaturated fatty acid was recorded in the fish species, and the most abundant polyunsaturated fatty acid is the Docosahexaenoic acid with a value of 2.297%. The most abundant polyunsaturated fatty acid recorded is Linoleic acid (2.075 while the least abundant polyunsaturated fatty acid was eicosapentaenoic acid (EPA, C20:5n-3). There was significant variation (p < 0.05) in the level of Docosahexaenoic acid and Eicosapentaenoic acid in the fish species. The monounsaturated fatty acids (MUFA) content of horse mackerel was mainly omega-9 fatty acids except Palmitoleic acid which is an omega-7 fatty acid. It can be concluded that the horse mackerel has a good mineral and fatty acid profiling.
采用改进的NIOMR熏鱼窑对进口马鲛鱼进行了矿物质和脂肪酸含量的测定。从尼日利亚拉各斯州Ijora冷冻食品市场获20公斤冷冻进口马鲛鱼。样品被运送到NIOMR中试工厂进行处理并开始化学分析。结果表明,该鱼类中含量最高的饱和脂肪酸为棕榈酸,含量为19.404%,单不饱和脂肪酸含量最高的是Elaidic酸,含量为12.63%。鱼类中多不饱和脂肪酸含量较低,以二十二碳六烯酸含量最高,为2.297%。记录中含量最高的多不饱和脂肪酸是亚油酸(2.075),含量最低的多不饱和脂肪酸是二十碳五烯酸(EPA, C20:5n-3)。不同鱼种间二十二碳六烯酸和二十碳五烯酸含量差异显著(p < 0.05)。马鲛鱼的单不饱和脂肪酸(MUFA)含量除棕榈油酸为一种ω -7脂肪酸外,主要为ω -9脂肪酸。由此可见,马鲛鱼具有良好的矿物质和脂肪酸谱。
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引用次数: 0
Microbiological Quality Assessment of Commercially and Laboratory Prepared Orange Juice 市售和实验室配制橙汁的微生物质量评价
Pub Date : 2019-02-15 DOI: 10.32861/JBR.52.19.27
B. C. Obasi, C. Whong, J. Ameh, Elijah Ekah Ella
Orange juice has become one of the most widely accepted natural beverages due to its invigorating flavours, source of quick energy in the form of natural sugars and its nutrient which support the growth of acid tolerant bacteria, yeasts and moulds. Present investigation was conducted to study the microbiological examination of commercially and freshly prepared orange juices. Freshly prepared orange juices were pasteurised, carbonated, concentrated and chemically treated with a preservative (sodium metabisulphite) and stored under, freezer, refrigeration and ambient temperature for 90 days. The pH ranged from 3.0 to 4.5 for the commercially, fresh and stored samples respectively. The total bacterial load ranged from 1.6x105 to 3.6x106 and the total yeast cell counts ranged from 1.7x104 to 4.8x106 cfu/ml for the commercially, freshly and stored samples. Twenty-two microbial species including 5 bacterial isolates, 6 yeast isolates and 11 isolates of mould were isolated from the orange juices. The bacterial isolates identified from the samples were Bacillus megaterium, Bacillus cereus, Bacillus pantothenticus, Bacillus aeruginosa and Escherichia coli. The fungal isolates were Saccharomyces cerevisiae, Saccharomyces rouxii, Saccharomyces telluris, Blastomyces sp, Aspergillus sp, Mycelia sp, Chrysosporium sp, and Trichoderma sp. Among the bacterial isolates, Bacillus sp was the predominant, while the fungi Saccharomyces sp and Mycelia sp were the predominant fungi and accounted for five out of 11 isolates. The isolates of bacteria, yeasts and moulds appear to be persistent throughout the period of this study and could be used as indicators of microbial quality. A safe microbial load and reduction in contamination of orange juice /fruit juices can be achieved by combination of processing methods such as chemical preservatives with pasteurisation,concentration with carbonation under controlled microbiological environments such as freezer and refrigeration temperatures.
橙汁已成为最广泛接受的天然饮料之一,因为它有提神的味道,以天然糖的形式提供快速能量,它的营养成分支持耐酸细菌、酵母和霉菌的生长。本研究对市售橙汁和新鲜橙汁的微生物学检测进行了研究。新鲜制备的橙汁经过巴氏消毒、碳酸化、浓缩,并用防腐剂(焦亚硫酸钠)进行化学处理,并在冷冻、冷藏和环境温度下储存90天。商业样品、新鲜样品和储存样品的pH值分别为3.0 ~ 4.5。商业、新鲜和储存样品的细菌总负荷范围为1.6 × 105 ~ 3.6 × 106,酵母细胞总数范围为1.7 × 104 ~ 4.8 × 106 cfu/ml。从橙汁中分离出22种微生物,其中细菌分离5株,酵母菌分离6株,霉菌分离11株。从样品中分离出的细菌有巨芽孢杆菌、蜡样芽孢杆菌、泛腐芽孢杆菌、铜绿芽孢杆菌和大肠杆菌。分离到的真菌有酿酒酵母(Saccharomyces cerevisiae)、rouxii酵母(Saccharomyces rouxii)、tellis酵母(Saccharomyces telluris)、Blastomyces sp、曲霉(Aspergillus sp)、菌丝体(Mycelia sp)、黄孢菌(Chrysosporium sp)和木霉(Trichoderma sp)。其中芽孢杆菌(Bacillus sp)为优势菌,真菌Saccharomyces sp和菌丝体(Mycelia sp)为优势菌,在11株分离物中占5株。在整个研究期间,细菌、酵母和霉菌的分离株似乎持续存在,可以用作微生物质量的指标。安全的微生物负荷和减少橙汁/果汁的污染可以通过在控制微生物环境(如冷冻和冷藏温度)下结合使用化学防腐剂和巴氏灭菌、浓缩和碳酸化等处理方法来实现。
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引用次数: 1
Comparison Between Feature-Based and Convolutional Neural Network–Based Computer-Aided Diagnosis for Breast Cancer Classification in Digital Breast Tomosynthesis 基于特征和卷积神经网络的计算机辅助诊断在数字乳腺断层合成中乳腺癌分类的比较
Pub Date : 2019-01-15 DOI: 10.32861/jbr.51.1.18
Siwa Chan, J. Yeh
Digital breast tomosynthesis (DBT) is a promising new technique for breast cancer diagnosis. DBT has the potential to overcome the tissue superimposition problems that occur on traditional mammograms for tumor detection. However, DBT generates numerous images, thereby creating a heavy workload for radiologists. Therefore, constructing an automatic computer-aided diagnosis (CAD) system for DBT image analysis is necessary. This study compared feature-based CAD and convolutional neural network (CNN)-based CAD for breast cancer classification from DBT images. The research methods included image preprocessing, candidate tumor identification, three-dimensional feature generation, classification, image cropping, augmentation, CNN model design, and deep learning. The precision rates (standard deviation) of the LeNet-based CNN CAD and the feature-based CAD for breast cancer classification were 89.84 (0.013) and 84.46 (0.082), respectively. The T value was -4.091 and the P value was 0.00 < 0.05, which indicate that the LeNet-based CNN CAD significantly outperform the feature-based CAD. However, there is no significantly differences between the LeNet-based CNN CAD and the feature-based CAD on other criteria. The results can be applied to clinical medicine and assist radiologists in breast cancer identification.
数字乳腺断层合成(DBT)是一种很有前途的乳腺癌诊断新技术。DBT有潜力克服传统乳房x光检查中出现的组织重叠问题。然而,DBT产生了大量的图像,从而给放射科医生带来了沉重的工作量。因此,构建一个用于DBT图像分析的计算机辅助诊断(CAD)系统是必要的。本研究比较了基于特征的CAD和基于卷积神经网络(CNN)的CAD对DBT图像的乳腺癌分类。研究方法包括图像预处理、候选肿瘤识别、三维特征生成、分类、图像裁剪、增强、CNN模型设计、深度学习等。基于lenet的CNN CAD和基于feature的CAD用于乳腺癌分类的准确率(标准差)分别为89.84(0.013)和84.46(0.082)。T值为-4.091,P值为0.00 < 0.05,表明基于lenet的CNN CAD显著优于基于feature的CAD。然而,基于lenet的CNN CAD与基于特征的CAD在其他标准上没有显著差异。研究结果可应用于临床医学,辅助放射科医师进行乳腺癌鉴别。
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引用次数: 0
An investigation of risk factors associated with respiratory syncytial virus infection in a sample of infants and young children from baghdad 对巴格达婴幼儿呼吸道合胞病毒感染相关危险因素的调查
Pub Date : 2019-01-01 DOI: 10.24126/jobrc.2019.13.1.565
Suha H. Ali, A. Al-Shuwaikh, H. Arif
Background: Human Respiratory Syncytial virus (hRSV) is one of the major causes of viral respiratory tract infection in infants and young children. Aim of study:  The aim of this study was to determine the risk factors associated with hRSV infection. Objective: This study included 100 hospitalized infants and young children with chest infection (39 female and 61 male) aged from (1) to (24) months, their mean age (6.87) months. Material and methods:  Nasopharyngeal/throat swabs specimens were collected over a three-month winter period from January to April, 2017. hRSV was determined by reverse transcription polymerase chain reaction (RT-PCR). Results:  The highest percentage of hRSV RNA (56.81%) was observed in the age group less than 6 months, followed by (27.27%) and (15.91%) in the age group 6-12 months and 12-24 months, respectively, which mean that (84%) of hRSV infections were under 12 months of age. Regarding the type of feeding, about (84%) of hRSV infections were positive in patients with bottle feeding which indicated that the role of breastfeeding in preventing hRSV infection and hospitalization is undisputed, Results showed that there was no significant association between these risk factors and the occurrence of hRSV infection (P˃ 0.05). Conclusion:  The hRSV-RNA is equally distributed between patients exposed and not exposed to smoking (50%).
背景:人呼吸道合胞病毒(hRSV)是婴幼儿病毒性呼吸道感染的主要原因之一。研究目的:本研究的目的是确定与hRSV感染相关的危险因素。目的:本研究纳入100例胸部感染住院婴幼儿,其中女39例,男61例,年龄1 ~ 24个月,平均年龄6.87个月。材料与方法:于2017年1 - 4月冬季采集患者鼻咽拭子标本。逆转录聚合酶链反应(RT-PCR)检测hRSV。结果:hRSV RNA在小于6月龄组中所占比例最高(56.81%),其次是6-12月龄组(27.27%)和12-24月龄组(15.91%),这意味着(84%)的hRSV感染发生在12月龄以下。在喂养方式方面,奶瓶喂养患者hRSV感染阳性率约为(84%),说明母乳喂养在预防hRSV感染和住院治疗中的作用是毋庸置疑的,结果显示这些危险因素与hRSV感染的发生无显著相关性(P > 0.05)。结论:hRSV-RNA在吸烟暴露与非吸烟暴露患者中分布均匀(50%)。
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引用次数: 1
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Journal of Biotechnology Research Center
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