厦门市肠造口患者早期自我管理现状的调查及影响因素的研究

目的调查厦门市肠造口患者早期自我管理现状并分析其影响因素。方法采用造口患者自我管理量表和一般情况问卷,对复诊的120例肠造口患者进行问卷调查,了解其自我管理情况,并分析自我管理的影响因素。结果肠造口患者早期自我管理平均得分为(48.02±19.56)分。在造口护理管理、症状护理管理、日常生活护理管理、功能锻炼管理和心理护理管理5个维度中,日常生活护理管理得分最高,为(14.72±3.44)分;心理护理管理得分最低,为(5.5±2.29)分。不同年龄段、职业、文化程度、医疗支付情况和家庭人均月收入患者的自我管理能力得分差异有统计学意义(P<0.05)。采用多元线性回归分析结果显示,影响肠造口患者早期自我管理的主要因素为文化程度和家庭人均月收入。结论肠造口患者早期自我管理的能力有待提高,医务人员应该根据有关影响因素采取有针对性的措施,对肠造口患者早期自我管理加强干预,预防和控制造口并发症的发生,促使患者早日康复

农村留守经历大学生成人依恋及影响因素分析

目的探讨农村留守经历大学生(URLB)成人依恋现状及其影响因素。方法采用亲密关系体验问卷及自编问卷对河北省2所高校1062名有农村留守经历的大学生进行自填式问卷调查。结果成人依恋回避和依恋焦虑维度平均得分分别为(4.16±0.53),(3.82±0.82)分;多元线性回归分析表明,性别(β=0.236)及与父母联系频次(β=0.073)为URLB依恋回避的影响因素;性别(β=0.079)、留守家庭生活满意度(β=-0.074)、开始留守时间(β=-0.12)及与抚养人沟通情况(β=0.066)为URLB依恋焦虑的影响因素。结论性别以及童年期的留守经历对URLB成人依恋的发展有影响

Hydrophilicity of TiO_2 Thin Films Codoped with Iron and Nitrogen

[中文文摘]采用溶胶-凝胶法制备了铁掺杂TiO2(Fe-TiO2)薄膜,将Fe-TiO2薄膜放置氨气气氛中高温处理,形成铁、氮共掺杂TiO2(Fe/N-TiO2)薄膜.通过XRD、XPS、SEM、UV-Vis法进行吸收光谱分析及薄膜表面亲水接触角分析,研究了铁、氮掺杂浓度,热处理温度,膜厚等因素对薄膜亲水性能的影响.结果表明,Fe/N-TiO2(0.5%Fe,摩尔百分数)显示出更佳的亲水性能,在可见光下优势尤为明显.铁掺杂主要作用是降低电子和空(的复合几率,氮掺杂可以增强TiO2薄膜在可见光区的吸收,两种效应相互结合,共同提高了薄膜在可见光下的亲水性能.[英文文摘]TiO2 doped with iron(Fe-TiO2)thin films were synthesized using sol-gel method.TiO2 codoped with iron and nitrogen(Fe/N-TiO2)thin films were prepared by calcining Fe-TiO2 thin films in ammonia atmosphere.The influence of iron and nitrogen doping concentration,heat-treatment temperature and film thickness on the hydrophilicity of the films were studied by XRD,XPS,SEM,UV-Vis spectra and measured water contact angle.The results indicated that Fe/N-TiO2(0.5%Fe,molar percent)films were optimum in hydrophilicity,especially under visible-light irradiation. Doping iron mostly reduced the recombination of electrons and holes, and doping nitrogen in TiO2 enhances photoresponse in visible-light region. The hydrophilicity benefited from both effects.国家自然科学基金(50472057

Preparation and Photocatalytic Activity of TiO_2 Powder Codoped with Iron and Nitrogen

Using TiCl4 as the titanium source, nanoparticles of TiO2 doped with nitrogen(N-TiO2) were synthesized by triethylamine. TiO2 powder codoped with iron and nitrogen(Fe/N-TiO2) were prepared by adsorption-deposition of Fe3+ on N-TiO2 and calcining at 400 ℃ for 2 h. From the XPS results for N1s binding energy at 399.6 eV and 396.6 eV, it is proposed that the partial N atoms as substitution atoms replace for O atoms in TiO2 lattice. The onset of the absorption spectrum of Fe/N-TiO2 has a 45 nm red-shift compared with that of TiO2. The results of photocatalytic degradation of methylene blue solution indicate that Fe/N-TiO2 (0.45% Fe3+) has a higher activity.Its photocatalytic activity is about 2 times as high as that of pure TiO2 under UV-light, and 3 times under sunlight. Doping of nitrogen in TiO2 enhances photoresponse in visible light region and doping of Fe3+ reduces the recombination of electrons and holes. Both of the above effects are beneficial for improving the performances of Fe/N-TiO2 photocatalyst.国家自然科学基金(No.50472057

Association between Methylenetetrahydrofolate Reductase Gene Single Nucleotide Polymorphisms and Lower Extremity Atherosclerotic Disease

目的:研究汉族人群中亚甲基四氢叶酸还原酶(methylene-tetrahydrofolate reductase,MTHFR)基因多态性与下肢动脉粥样硬化(lower extremity atherosclerotic disease,LEAD)的相关性。方法:收集福建省闽南地区384例(LEAD者224例,健康者160例)的临床资料及外周血;LEAD检查采用踝肱指数(ABI)、趾肱指数(TBI)、多普勒彩超和其他影像学检查等手段;选取MTHFR基因rs1801133、rs1801131、rs2274976、rs4846048、rs3737966、rs1537515、rs4846049、rs3834044、rs13306561和rs3737964等10个单核苷酸多态性(single nucleotide polymorphisms,SNP)位点进行基质辅助激光解吸电离飞行时间质谱分析技术(matrix-assisted laser desorption ionization-time of flight,MALDI-TOF)的基因分型。结果:10个SNP位点均符合HardyWeinberg平衡;rs4846048与rs3737966等37个位点之间存在明显连锁不平衡现像(D'均大于0.9);MTHFR基因GCCTCGGAAT单倍型在LEAD和正常组的分布差异有统计学意义(P=0.02);等位基因频率的χ~2检验显示rs1801131(OR=1.287);rs4846048(OR=1.844,P=0.02);rs3737966(OR=1.339);rs4846049(OR=1.314)和rs3737964(OR=1.522);且rs4846048位点的趋势χ~2检验(cochran-armitage trend test,TREND)、显性基因检验(Dominant gene action test,DOM)均显示LEAD与正常组之间分布频率的差异有统计学意义(P 0. 9) and so on. There were significant differences( P = 0. 02) in GCCTCGGAAT haplotypes of MTHFR gene groups between LEAD cases and the normal groups. The results from chi-square test of allele frequencies suggested rs1801131( OR = 1. 287),rs4846048( OR = 1. 844,P = 0. 02),rs3737966( OR =1. 339),rs4846049( OR = 1. 314) and rs3737964( OR = 1. 522). Significant differences( P < 0. 05) were observed between LEAD and the normal groups in Cochran- Armitage trend test and Dominant gene action test of rs4846048. Conclusion: The SNP of rs1801131,rs4846048,rs3737966,rs4846049 and rs3737964 might be associated with the susceptibility of LEAD,and rs4846048 gene mutation might serve as a risk factor for LEAD in the community-based population.2013年度南京军区医学科技创新课题(编号:MS098);; 解放军第175医院青年苗圃基金项目(编号:13Y015

Flora analysis of seed plants in Wuyuan forest birds nature reserve

在野外调查及查阅相关资料的基础上,对婺源森林鸟类自然保护区的种子植物资源进行区系分析。结果表明:(1)区内植物种类丰富多样,共有种子植物1 724种,隶属于194科732属。其中裸子植物8科13属16种,被子植物186科719属1 708种。(2)区内种子植物科属的组成较为分散,植物成分较为复杂。在科的组成结构上,少种科的数量最多,占54.64%。但包含植物种类最多的是较大科,占总种类的29.23%。在属的组成结构上,则主要以少种属和单种属为主,分别占比32.79%和55.87%。(3)区内种子植物区系成分复杂。热带分布类成分相对占优势,有297属,占总属数的40.57%。其次是亚洲分布类有196属,占26.78%。此外温带分布类含173属,占23.63%;世界分布类有66属,占9.02%。(4)将婺源种子植物与邻近的四个地区进行比较。5个地区中世界分布类和亚洲分布类所占比值大致相当,但热带类和温带类所占比值则有较大差异。热带分布类成分最多的婺源,占比值为40.57%,最少的黄山只有31.82%。温带分布类成分最多的黄山,占比值为29.31%,最少的婺源只有23.63%。The area types analysis of the seed plant was done based on field investigation and relevant information about Wuyuan forest bird nature reserve. The results showed that:(1) There are 1 724 species of seed plants in this region, belong to 194 families and 732 genera, including 8 families,13 genera, 16 species of gymnosperm and 186 families, 719 genera, 1 708 species of angiosperms.(2) The composition of the seed plants in this region is highly dispersed and very complex. In the composition of the families, the number of small families is the most, which rate is 54.64%. However, the major families contain the largest number of plant species, the rate is 29.23%. In the composition of the genus, species focus on the small genera and the single genus that accounted for 32.79% and 55.87%.(3) The flora of seed plants in this region is complex. There are 297 genera, 40.57% genera of the total, in the tropical distribution. Followed by the Asian distribution of 196 genera, accounting for 26.78%. In addition, the temperate distribution including 173 genera, 23.63% of the total and the world distribution including 66 genera, accounting for 9.02% of the total.(4) Comparison of other 4 regions in the same latitude of Wuyuan forest birds nature reserve. In the 5 regions, the proportion of the world distribution and the Asia distribution is roughly equal, but there is a large difference between the tropical distribution and temperate distribution. Wuyuan, which contain the highest ratio of tropical distribution, 40.57% of the total, and in the least Huangshan the ratio is only 31.82%. Temperate distribution has the highest ratio 29.31% of Huangshan, and the least 23.63% of Wuyuan.国家科技部科技基础性工作专项(2015FY110200

协作征管:共建环保“税时代”

背景材料:1月1日起,《中华人民共和国环境保护税法》《中华人民共和国环境保护税法实施条例》同步施行。环保税的开征,意味着我国税收在生态环境方面的调控作用进一步强化,推动企业加速绿色转型

Characteristics of nitrogen and phosphorus losses from swine production systems in Jiulong River watershed

由于对畜禽粪便的处置和管理不当,氮、磷养分随粪便大量流失,不仅带来日益突出的环境问题,还造成了资源的浪费。目前国际上多采用养分平衡方法研究和评价畜牧养殖场养分流失状况及其潜在的环境风险程度。选取福建省九龙江流域92家养猪场,采用养分平衡分析方法研究了该流域养猪场养分流失状况及主要影响因素。结果表明:大部分养猪场的氮磷养分输入量远远大于养分有效输出量,表明养分大量流失,养殖系统的环境风险程度极高;随着养猪场规模的增大,氮、磷的不平衡程度呈下降趋势;生态型养殖模式有利于促进资源综合利用,减少养分流失;加强对粪肥和饲料管理有利于促进畜禽养殖场的氮、磷养分平衡。Huge losses of nitrogen and phosphorus from the livestock production systems are known as the waste of resources and the sources of the environmental quality problems. Nutrient balance at farm level is an important tool to study the environmental problems associated with livestock production. A nutrient balance was constructed for 92 swine production systems of Jiulong River watershed, Fujian Province. The majority of the farms exhibited substantially greater nutrient inputs than nutrient managed outputs and it was in the status of an overaccumulation of nutrients; the nutrient imbalance decreased with farm scales; ecological production was a preferred mode to make better use of resources and decrease the losses of nutrients; management of feed and manure was helpful to balance the nutrients of livestock farms.福建省重大科技项目(2002H009)资

Preparation and photocatalytic activity of TiO2 powder codoped with iron and nitrogen

Using TiCl4 as the titanium source, nanoparticles of TiO2 doped with nitrogen (N-TiO2) were synthesized by triethylamine. TiO2 powder codoped with iron and nitrogen (Fe/N-TiO2) were prepared by adsorption-deposition of Fe3+ on N-TiO2 and calcining at 400 degrees C for 2 h. From the XPS results for N1s binding energy at 399.6 eV and 396.6 eV, it is proposed that the partial N atoms as substitution atoms replace for O atoms in TiO2 lattice. The onset of the absorption spectrum of Fe/N-TiO2 has a 45 nm red-shift compared with that of TiO2. The results of photocatalytic degradation of methylene blue solution indicate that Fe/N-TiO2 (0.45% Fe3+) has a higher activity. Its photocatalytic activity is about 2 times as high as that of pure TiO2 under UV-light, and 3 times under sunlight. Doping of nitrogen in TiO2 enhances photoresponse in visible light region and doping of Fe3+ reduces the recombination of electrons and holes. Both of the above effects are beneficial for improving the performances of Fe/N-TiO2 photocatalyst

Hydrophilicity of TiO2 thin films codoped with iron and nitrogen

TiO2 doped with iron (Fe-TiO2) thin films were synthesized using sol-gel method. TiO2 codoped with iron and nitrogen (Fe/N-TiO2) thin films were prepared by calcining Fe-TiO2 thin films in ammonia atmosphere. The influence of iron and nitrogen doping concentration, heat-treatment temperature and film thickness on the hydrophilicity of the films were studied by XRD, XPS, SEM, UV-Vis spectra and measured water contact angle. The results indicated that Fe/N-TiO2 (0.5%Fe, molar percent) films were optimum in hydrophilicity, especially under visible-light irradiation. Doping iron mostly reduced the recombination of electrons and holes, and doping nitrogen in TiO2 enhances photoresponse in visible-light region. The hydrophilicity benefited from both effects