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1.
A ten-year-old female poodle was presented for left hindlimb lameness. Radiographically, irregular intramedullary densities of long bones (bone infarcts) and a lytic lesion in the left distal femur were detected. Two years after the first examination, the lesions in the distal femur were definitely identified as osteosarcoma and the dog was euthanized. Pathological and histological changes of the bone infarcts as well as of the osteosarcoma are described. Regarding bibliographical data, occurrence and aetiopathogenesis of osteosarcoma associated with multifocal bone infarction in man and dog are discussed.  相似文献   
2.
In order to investigate usefulness of electrodiagnostic methods in Cauda Equina-Compression, 26 dogs with this disease were subjected to electromyography and spinal evoked potentials. 16 normal dogs served as controls. It was found that--after stimulation of the Nn.tibialis, peronaeus, pudendus and coccygeales and recording at the lumbosacral junction--latencies and nerve-conduction velocities were largely normal. However the amplitudes were decreased and--depending on the severity of the compression--the morphology of the potentials was altered although considerable standard deviations were obtained. Electromyographically, increased spontaneous activity with fibrillations and positive sharp waves were found in the myotomes of the lumbosacral nerves. Their number increased according to the severity of the cauda equina compression and they had a centrifugal distribution pattern. Based on these results it appears indicated to perform an electromyographic exam before applying myelography. The technique of spinal evoked potentials will need more refinement and standardisation before being useful in a clinical situation.  相似文献   
3.
Site quality of larch (Larix gmelinii Rupr.) in Da Xingan Mountain in Inner Mongolia was studied systematically with about 1000 temporary plots and computer software. The nature of site class and site index curve was discussed in view of general mathematical model of height growth. The height growth of dominant tree of four divisions of forest stands were studied and site index tables were constructed respectively. In order to unify the comparing standard and convenience for management in this region, site index table was constucted too. Based on discussing the action and accuracy of forest type, a series of site quality evaluation (forest type-site index class-site index) was suggested. This subject of study is supported by the National Natural Scientific Fund (No. 39270549).  相似文献   
4.
非公有制林业主体融资问题的思考   总被引:4,自引:0,他引:4  
李浪 《浙江林业科技》2005,25(2):69-74,78
针对不同层次的个体林业,设计了民间融资、"报账制"式银行信贷等方式以求解决个体林农融资困难问题.  相似文献   
5.
Lang SB 《Science (New York, N.Y.)》1981,213(4513):1243-1244
  相似文献   
6.
Previous studies showed that the yellow seed color gene of a yellow mustard was located on the A09 chromosome. In this study, the sequences of the molecular markers linked to the yellow seed color gene were analyzed, the gene was primarily mapped to an interval of 23.304 to 29.402M. Twenty genes and eight markers’ sequences in this region were selected to design the IP and SCAR primers. These primers were used to screen a BC8S1 population consisting of 1256 individuals. As a result, five IP and five SCAR markers were successfully developed. IP4 and Y1 were located on either side of the yellow seed color gene at a distance of 0.1 and 0.3 cM, respectively. IP1, IP2 and IP3 derived from Bra036827, Bra036828, Bra036829 separately, co-segregated with the target gene. BLAST analysis indicated that the sequences of newly developed markers showed good collinearity with those of the A09 chromosome, and that the target gene might exist between 27.079 and 27.616M. In light of annotations of the genes in this region, only Bra036828 is associated with flavonoid biosynthesis. This gene has high similarity with the TRANSPARENT TESTA6 gene, Bra036828 was hence identified as being the gene possibly responsible for yellow seed color, in our research.  相似文献   
7.
番茄新品种长丰88是以CT15为母本,CT101-3为父本配制的抗TY、抗线虫杂交一代良种,属无限生长红果类型。生长势强,第7片叶着生第1花穗,每隔2片叶着生一花穗,中早熟。坐果率高、连续结果能力强,春季每穗平均结果 20个,产量59 850 kg/hm~2;果实圆形,无绿色果肩,表面光滑,外形美观。果实硬度大,耐贮运,货架寿命长,单果质量20 g左右,大小均匀。可溶性固形物含量8.9%,VC含量32.43 mg/100 g,总糖3.44%,总酸0.236%。抗病性强,抗番茄黄化曲叶病毒病,根结线虫病发病率为0,灰霉病和早疫病均未见发生。  相似文献   
8.
9.
总结了花椰菜的单球质量、成熟期、株高株展、花球品质等主要性状的遗传规律以及性状之间的相关性,并得出结论:花椰菜主要性状遗传规律以及性状相关性研究对育种研究具有重要指导意义,但必须注重与田间调查相结合,只有将遗传规律与田间调查有机结合才能提高育种效率,提高育种水平。  相似文献   
10.
目的:对汞矿周围环境和畜禽进行砷、铅、铬污染调查,为掌握其污染情况提供依据。方法:电感耦合等离子体质谱法(ICP-MS测定。结果:环境中水源污染铅、砷严重,蔬菜、粮食受到不同程度污染;鸡、鸭组织铅污染严重;猪、牛、羊砷、铅污染严重,部分组织受铬轻度污染。结论:汞矿周围环境以及饲养的畜禽存在严重砷、铅污染,轻度铬污染。  相似文献   
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