辛亥革命前后张謇与袁世凯的交往     

王志军  王瑞芳 《信阳农业高等专科学校学报》2005,15(4):51-54

张謇与袁世凯的交往长达三十余年,他从最初的相识荐袁、拥袁合作、相互借重到后来的分离,张謇曾幻想依靠袁世凯实现自己“实业救国”的抱负,却以失败而告终。二人分分合合,充满波折的交往过程反映了中国近代资本主义发展的艰难与坎坷。  相似文献   

A novel mutation of the CLCN1 gene associated with myotonia hereditaria in an Australian cattle dog     

Finnigan DF  Hanna WJ  Poma R  Bendall AJ 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2007,21(3):458-463

BACKGROUND: Heritable myotonia is a genetic muscle disorder characterized by slow relaxation of skeletal muscles. The main clinical signs are skeletal muscle stiffness, especially after vigorous contraction, and muscle hypertrophy. Muscle stiffness may be enhanced by inactivity, and often is relieved by exercise. Myotonia can be inherited in an autosomal dominant or recessive manner (Thomsen- or Becker-type myotonia, respectively). In mice, goats, Miniature Schnauzer dogs, and most affected humans, the disorder is caused by mutations in CLCN1, which encodes the skeletal muscle voltage-gated chloride channel, Cl1C-1. HYPOTHESIS: We hypothesized that an Australian Cattle Dog with generalized muscle stiffness and hypertrophy examined at the Ontario Veterinary College would have a mutation in the CLCN1 gene. ANIMALS: A pure-bred Australian Cattle Dog from Ontario, Canada, was used. METHODS: Based on clinical signs and electromyographic test results, a diagnosis of myotonia hereditaria was made, and a muscle biopsy was collected for genetic analysis. RESULTS: Sequence data obtained from the affected dog confirmed that it was homozygous for a single base insertion in the CLCN1 coding sequence. This mutation would result in a truncated ClC-1 protein being expressed, which, based on molecular evidence from other studies, would result in functionally compromised chloride conduction in the skeletal muscles of the animal. CONCLUSIONS AND CLINICAL IMPORTANCE: To the authors' knowledge, this report describes the Ist case of myotonia in an Australian Cattle Dog and represents the 1st non-Schnauzer canine myotonia to be genetically characterized. In addition, we developed a polymerase chain reaction-based genetic screen to detect heterozygotes with this mutation in the at-large Australian Cattle Dog population.  相似文献   

Using morphometrics to identify sex in the eastern blue-tongued skink (Tiliqua scincoides)     

A Bird  D Monks  IP Hughes 《Australian veterinary journal》2023,101(7):282-290

  相似文献   

An ecosystem-based assessment of the Korean blue crab trammel net fishery in the Yellow Sea and management implications     

Inja Yeon  Mi Young SongMyoung Ho Sohn  Hak Jin HwangYang Jae Im  Do Hoon KimHee Won Park  Chang Ik Zhang 《Fisheries Research》2011,112(3):179-188

Landings in the blue crab, Portunus trituberculatus, fishery in Korean waters of the Yellow Sea have declined substantially from 11,000 t in the 1980s to 2,300 t in 2004. Blue crab habitat quality in the Yellow Sea has been degraded by anthropogenic activities including sand mining, land reclamation, and coastal pollution. Various traditional management measures have been implemented, including closed seasons during spawning and size limits, but these measures alone have been unsuccessful to conserve blue crab stocks. Consequently, a total allowable catch and a stock-rebuilding program using an ecosystem-based management approach were implemented in 2003 and 2006, respectively to rebuild blue crab stocks and restore habitats. This program involved assessment of both blue crab stock status and trammel-net fishery impacts at an ecosystem-level using an ecosystem-based fisheries assessment method ( [Zhang et al., 2009] and [Zhang et al., 2010]), which considered fishery data from catch and effort time-series, crab population biology, and ecosystem characteristics, including habitats and environmental conditions. Recent (2008) management status indices have shown significant positive change compared to conditions in 2000 with respect to sustainability of the stock and fishery and with regards to biodiversity and ecosystem habitat quality.  相似文献   

蓝光连续光照对大豆芽苗菜类黄酮合成的影响     

李娜  张晓燕  田纪元  贾礼  龚春燕  居鑫  刘自力  崔瑾 《大豆科学》2017,36(1)

以黑暗培养(D)为对照,阐明了蓝光(B)连续光照对大豆(Glycine max L.Merr.)芽苗菜品种东农690生长和类黄酮合成的影响。结果表明:与对照组相比,蓝光连续光照36 h显著提高了大豆芽苗菜子叶中山奈酚(kaempferol)和黄豆苷元(daidzein)的含量,同时子叶中蓝光光受体基因CRY1、CRY2,类黄酮合成相关基因IFS的表达量也显著提高。处理组中,大豆芽苗菜下胚轴中黄豆苷(daidzin)含量逐渐增加,黄豆苷元(daidzein)、染料木素(genistein)、染料木苷(genistin)和山奈酚(kaempferol)的含量先升高后下降,但在36 h时均显著高于黑暗处理。在蓝光光照6和24 h时,大豆芽苗菜下胚轴中苯丙氨酸解氨酶(PAL)与查尔酮异构酶(CHI)活性与对照组相比均显著提高。类黄酮合成途径相关基因PAL、CHS、ANS、IFS的表达量在蓝光处理下均是先升高后下降,而蓝光光受体基因CRY1与CRY2的表达量随着光照时间延长逐渐升高。  相似文献   

实施蓝海战略 振兴民族大豆产业     

季志强  赵共鹏  汤玉华  杨青林  桑利民  盖颜欣  邢占民  袁文利  郭玉炜  张扬 《山西农业科学》2011,39(6):495-497,501

我国大豆产业面对国外大量涌入的转基因大豆的冲击、广大豆农无钱可赚、国产大豆加工企业没有利润空间的严峻形势,只有实施蓝海战略,才能突出重围,谋求新的发展,实现民族大豆产业的振兴。  相似文献   

百子莲无土栽培营养液配方的研究   总被引：3，自引：0，他引：3  

王磊  卓丽环  李瑞发 《浙江农业学报》2012,24(2):238-242

为提高百子莲的生产效率和花朵品质,降低百子莲的生产成本,促进百子莲的推广应用。本研究以两年生百子莲组培苗为材料,以无土基质配比组合(玉米秸秆∶百子莲腐叶∶炉渣=1∶2∶1)为栽培基质。试验营养液是在改良Hoagland营养液配方基础上,分别从浓度、铁盐含量和pH三个因素的三水平入手,按正交组合方法进行设计。从各营养液对百子莲形态及生理等指标的影响进行对比分析。结果表明:pH 6.5的0.5倍浓度添加1.2倍铁盐含量的无土基质栽培百子莲植株生长健壮,干物质积累迅速,抗外界胁迫能力强,是百子莲无土基质栽培的最佳的营养液处理配方。  相似文献   

蓝光诱导蛹虫草虫草素含量和分生孢子数的变化     

金华燕  沈俊良  付鸣佳  高雅  黄妮娜 《安徽农业科学》2013,41(1):409-410

[目的]研究蓝光对蛹虫草菌丝体中虫草素含量和分生孢子量的影响。[方法]以蛹虫草为材料,在不同的蓝光照射时间取样,以检测菌丝体中虫草素的含量,并计数蛹虫草分生孢子的产生量。[结果]蛹虫草受蓝光照射后,其虫草素的产生受到了一定的抑制,同时虫草素含量的变化也有一定的波动性;在相同的时间点,受蓝光照射的蛹虫草分生孢子数量比黑暗时的分生孢子数量要多,同时在一定时间范围内分生孢子数均呈上升趋势。[结论]该研究为系统性的研究蓝光对蛹虫草的影响奠定了基础。  相似文献   

革命根据地农业生产互助组织考察     

李小红  周丽玲 《安徽农业科学》2011,39(24):15175-15179,15182

以大量原始史料为基础,对中国共产党在特定形势下发起的农业生产互助运动进行了研究,考察了这一时期革命根据地农业生产互助组织的组织特征、运行机制和绩效。  相似文献   

Isolation of <Emphasis Type="Italic">Penicillium hirsutum</Emphasis> from spoiled,packaged asparagus spears in Japan     

Michihiko?SaitoEmail author  Deepak Raj?Rai  Ryoichi?Masuda 《Journal of General Plant Pathology》2003,69(5):304-306

During storage studies on asparagus spears packed in plastic film and held at 15°C, a Penicillium fungus was associated with subsequent spoilage. On the basis of colony characteristics, the isolate was identified as Penicillium hirsutum Diercks. This report is the first of Penicillium hirsutum causing spoilage of asparagus spears in Japan. Inoculation tests showed that among all the Penicillium species tested in this study only the identified fungus was able to infect asparagus spears.  相似文献