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双语推荐：Gift

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提出了一种多特征尺度不变特征提取方法,简称GIFT（Gabor scale-Invariant Feature Transform）.该方法首先利用2D Gabor滤波器组模拟生物视觉感知计算模型进行特征点检测,符合生物视觉感知特性,得到具物理直观性、稳健的特征点.其次采用基于Gabor核函数的特征尺度选择方法对所检测的特征点选择多个特征尺度,得到高可区分性的多特征描述子.最后,通过设计面向多特征尺度的特征匹配策略,提高特征匹配的可靠性.基于标准数据集的对比实验结果表明,GIFT方法在特征匹配率和稳健性上均优于SIFT.
An invariant feature extraction method called GIFT (Gabor scale-Invariant Feature Transform )is proposed ,which has multi-characteristic scales .Firstly ,by using 2D Gabor filter bank to model the biological cognitive computational model ,intu-itional and robust keypoints are detected .It is accordant with vision perceptive characteristic .Secondly ,multi-characteristic scales of the detected keypoints are selected based on the Gabor kernel function ,and then multi-characteristic descriptors with high distinctive-ness are obtained .Finally ,a feature matching strategy for multi-characteristic scales is designed ,which increases the reliability of feature matching .The comparison experimental results on the standard dataset show that the proposed GIFT outperforms SIFT on both feature matching rate and robustness .

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O.Henry is one of the greatest American short story writers of the 20th century.He uses some peculiar writing methods in his short story "The Gift of the Magi":a distinctive title with metaphorical meaning,elaborate description of character and delicate portrayal of psychology,a reasonable and unexpected ending.
O.Henry is one of the greatest American short story writers of the 20th,century.He uses some peculiar writing methods in his short story "The Gift of the Magi":a distinctive title with metaphorical meaning,elaborate description of character and delicate portrayal of psychology,a reasonable and unexpected ending.

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通过人工控温,对吉富罗非鱼(GIFT Oreochromis niloticus)幼鱼实施34℃持续高温处理,研究持续高温对吉富罗非鱼幼鱼消化酶和溶菌酶活力的影响。结果表明:持续高温对吉富罗非鱼幼鱼消化酶活力的影响有统计学意义(P0.05),对溶菌酶活力影响不具统计学意义(P0.05);随着时间的推进,脂肪酶、淀粉酶活力增加,差异有统计学意义(P0.05),溶菌酶活力增加,但差异无统计学意义(P0.05)。表明持续高温能一定程度地提高罗非鱼的消化能力和免疫功能。
The young GIFT Oreochromis niloticus were put in water under 34℃ and the effects of continuous high temperature on digestive enzyme and lysozyme activities of young GIFT O. niloticus was studied. The results showed that effects of continuous high temperature on digestive enzyme activity of young GIFT O. niloticus had statistical significance (P 0.05). With time, the activities of lipase and amylase were significantly increased, the difference had statistical significance (P 0.05). This experiment shows that continuous high temperature can ,to a certain extent, improve the digestive ability and immune function of tilapia, and provide theoretical basis for feed ratio of tilapia under continuous high temperature and prevention and treatment of diseases.

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研究34℃高温环境下吉富品系罗非鱼(GIFT Oreochromis niloticus)幼鱼生长及超氧化物歧化酶(SOD)、乳酸脱氢酶(LDH)活力的变化规律,以及SOD、LDH活力与幼鱼生长间的关系。结果表明:持续高温对幼鱼特定生长率及SOD、LDH活力的影响有统计学意义(P0.05);随着时间的延长,LDH活力显著提高,差异有统计学意义(P0.05),特定生长率及SOD活力随时间变化不具统计学意义(P0.05);LDH活力增强是高温条件下幼鱼特定生长率降低的原因之一。
The effect of high temperature on the growth and enzyme activities of superoxide dismutase (SOD) and lactate dehydrogenase (LDH) of GIFT Nile tilapia juveniles (Oreochromis niloticus) were studied, and the relationship between enzyme activities of SOD and LDH and the growth was analyzed. We selected Nile tilapia juveniles with weight of (5.62±0.23) g as experimental subjects and set 34℃as high temperature group and 26℃as normal temperature group. Results showed that:1) Continuous high temperature had significant effect (P 0.05);3) The elevated LDH activity played a role in the decrease of SGR under high temperature condition.

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采用微卫星标记技术，对吉富品系尼罗罗非鱼（ GIFT strain）抗病群体和易感病群体进行了遗传差异分析。结果显示：在30个微卫星位点中20个能扩增出多态性高、重复性好的清晰条带；抗病群体和易感病群体的平均等位基因数分别为2．5，2．4个；观测杂合度和期望杂合度分别为0．469和0．441，0．440和0．476；多态信息含量PIC分别为0．359和0．379；UNH845和UNH189位点在抗病群体中偏离Hardy-Weinberg平衡（P＜0．05），GM180位点在易感病群体偏离Hardy-Weinberg平衡，2个群体间的遗传距离和遗传分化指数为0．055和0．054。此外，GM251和GM462位点的差异等位基因片段（135，198 bp）在抗病群体中出现的频率显著高于易感病群体，推测这2个基因片段与抗病性状存在一定的连锁关系。以上结果表明，吉富品系尼罗罗非鱼抗病群体与易感病群体之间的遗传多样性差异不明显，筛选出2个与抗病性状相关的微卫星标记，为开展吉富品系尼罗罗非鱼抗病品种分子标记辅助选育奠定了基础。
Technology with microsatellite was used to analyze the genetic difference between disease -resistant and disease-susceptible groups of GIFT strain .The results show that there were 20 loci successfully amplified with stable target bands within 30 tested loci to identify the polymorphism for the tested GIFT strain .The average alleles in disease-resistant was 2.5 slightly higher than that of 2.4 in disease-susceptible group .Then the average of ob-served heterozygosity(Ho)and expected heterozygosity(He)were 0.469 and 0.441,0.440 and 0.476 respectively, and the polymorphism information content (PIC)was 0.359 and 0.379.Genetic similarity index and genetic distance was 0.055 and 0.054 respectively.The locus UNH845,UNH189 and GM180 showed significant departure from Hardy-Weinberg equilibrium after sequential bonferroni correction (P<0.05)in two groups.GM251 and GM462 sites differences of allele fragment (135,198 bp) were positively related to disease-resistance GIFT strain.Above mentioned r

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选用初始体质量为(67.08±0.22)g的吉富罗非鱼(GIFT Oreochromis niloticus)360尾,随机分成6组,每组3个重复,分别在水泥池(2.5 m×1.4 m×1.5 m)中饲喂苏氨酸水平为0.49%、0.88%、1.27%、1.67%、2.06%和2.46%(占饲料的质量分数)的6组等氮半精制饲料(蛋白质质量分数为32.13%),经60 d生长实验确定吉富罗非鱼的苏氨酸需要量。结果显示,随着饲料苏氨酸水平增加,各饲料处理组成活率(96.67%～98.83%)无显著差异。吉富罗非鱼的增重率、特定生长率和蛋白质效率显著升高,均在1.67%组达到最大值;饲料系数显著降低,在1.67%组达到最小值;随着饲料苏氨酸水平进一步提高,上述指标不再发生显著变化。随饲料苏氨酸水平增加,吉富罗非鱼的肥满度无明显变化,肝体指数和脏体指数呈明显的先降后升趋势。饲料苏氨酸适宜水平(0.49%～1.67%)能使吉富罗非鱼肌肉水分含量显著降低,蛋白质含量显著增加,对脂肪和灰分含量无显著影响。饲料中苏氨酸水平为1.67%时,吉富罗非鱼肌肉苏氨酸含量和氨基酸总量均为最大值,显著高于其它各组。以增重率、特定生长率、饲料系数和蛋白质评价指标经二次回归分析得出,吉富罗非鱼饲料中苏氨酸适宜需要量以占饲料的质量分数计为1.62%～1.72%(饲料蛋白质质量分数32.13%)或以占饲料蛋白质的质量分数为5.04%～5.35%。
This experiment was conducted to determine the dietary threonine requirement for GIFT Oreochromis niloticus by formulating six isonitrogenous diets ( 32.13% protein ) containing threonine with increasing levels of 0.49%, 0.88%, 1.27%, 1.67%, 2.06%and 2.46%, respectively.Casein-gelatin-zein meal and crystalline amino acid mixture were used as dietary protein source.The dietary amino acid pattern , except for threonine , was applied to the amino acid pattern of the muscle of GIFT Oreochromis niloticus.Each experimental diet was fed to triplicate groups of 20 GIFT O.niloticus with initial body weight (67.08 ±0.22) g in cement pool (2.5 m ×1.4 m ×1.5 m) for 60 days.The result showed that with the increase of dietary threonine levels , the survival rates of feed test groups had no significant difference.The weight gainratios (WGR), specific growth rates (SGR) and protein efficiency ratios (PER) increased significantly, and reached their peaks in 1.67%group; whereas the feed con

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资优教育年会(NAGC会议)是美国资优教育领域的年度盛会。2013年11月7日-10日召开的第60届资优教育年会主要关注资优教育的实践层面,反映了当前美国资优教育研究比较关注于资优教育教学实践、"新标准"对资优教育的影响、资优教育中的情感因素以及资优教育理论的反思。
National Association of Gifted Child Convention is one of the biggest annual conventions in the field of gifted and talented education in America. The 60th NAGC convention which was held on November, 7-10th focused on the practical realm of gifted and talented education and relfected the new trend of gifted and talented education research in America. Nowadays, the gifted and talented researches emphasize the practice of gifted and talented education, the impact of“new standards”on the gifted and talented education, the emotional factor in gifted and talented education and the relfection of the theories of the gifted and talented education.

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作为一种特殊的教育组织形式,女童班的存在和发展对保障女童享有平等的受教育权利,促进女童自身的发展,推动义务教育的发展做出了一定的贡献。本研究将女童班作为切入点,对广西龙胜各族自治县女童班的发展历程进行梳理,并在此基础上对女童班的价值进行分析和阐释。
As a kind of special education organization form, Gifts Class makes a contribution to ensuring equal education of gifts by rights, promoting gifts own development, promoting the development of the compulsory education. This study will take Gifts Class as a point to comb the development process of Girls Class and interpretation about the value of the Girls Class.

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消费者对于节日的热衷促进了礼品行业的发展,而对于礼品独特性的追求便是定制类礼品的契机。本文以皮具产品为基础,探讨定制类皮具礼品的设计要素及定制模式,为皮具品牌的多样性和差异性发展提供参考。
Consumers'' enthusiasm for festivals makes development of the gift industry and the pursuit of consumers for the unique gift gives opportunity to the customized gifts. On the basis of leather products, this paper discusses the design elements and customization of the customized leather gifts, providing refer-ence for the development of leather brand diversity and differentiation.

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礼物馈赠是一个有趣且有丰富内涵的文化现象。研究礼物馈赠可以为我们提供了一条理解和诠释社会文化规则及社会关系结构的途径。以礼物馈赠对关系网络构建过程和礼物流动方向为切入点,分析礼物馈赠的文化规则和运行逻辑,试图挖掘这种文化规则背后所蕴含的其它因素,并探索礼物馈赠的理性化转变。
Gift transformation is an interesting cultural phenomenon with rich connotation .Research gifts transformation can provide a way to understand and interpret the social cultural rules and social relationship structure for us .With gifts on the rela-tionship between network construction process and its transformation direction as the breakthrough point , analysis on cultural rules and operation logic of gifts , try to find other factors behind this culture , then explore the gifts''rational transition .

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