Academic and private practice partnerships in veterinary radiology residency training

As veterinary radiologists devote greater time to telemedicine consultation, residency training must evolve to reflect the skills of these services. The contribution of private practice/consultant radiologists to residency training has traditionally been minimal but academic and private practice partnerships in education and research can provide the framework for a well‐rounded residency. These partnerships can also lessen the impact of workforce shortages in academia and provide financial compensation to academicians through external consultation. The purpose of this commentary is to review existing collaborative interactions between academic and private practice veterinary radiologists; with a focus on ways to sustain, improve, and cautiously increase the number of veterinary radiology training programs.     

单一气味和复合气味在搜爆训练中的科学应用

在实际搜爆工作中,警犬是在众多的复合气味中寻找炸药气味,即在复合气味中寻找相对单一的气味,然而随着社会科技的飞速发展,恐怖分子的犯罪手段也在日趋的先进和隐蔽,其主要表现为:炸药装置向着小而简的方向发展,加之大量包装物的使用,使本来很小的炸药气味就更难散发出来,与此     

狍的生物学特性与科学驯养

狍又名矮鹿、野狍、野羊 ,是小型鹿科动物 ,广泛分布于欧亚大陆的中部和北部 ,黑龙江、吉林、辽宁、陕西、河北、青海和甘肃等省区是我国狍的主要产区。由于野狍适应性和抗病性强 ,食性广泛 ,易人工驯养。同时由于养殖周期短 ,饲养成本低 ,经济效益高 ,野狍已成为农民脱贫致富的养殖新秀。因此 ,推广科学规范的野狍驯养技术 ,对科学保护和合理开发利用我国野狍资源 ,促进我国特种养殖业健康发展均具有极重要的现实意义。1　狍的生物学特性1 1　狍的形态特征成年狍体长 95～ 1 4 0ｃｍ ,体高 6 5～95ｃｍ ,体重 2 5～ 4 5ｋｇ。其中西北亚种…     

科学实验法对警犬鉴别训练的研究

本文将对警犬鉴别训练中的训练密度、训练时间、超量恢复三种影响因素进行实验分析,根据实验设计、实验结果以及实验结论说明影响因素给鉴别成功率带来的影响。     

科学利用青绿饲料

科学合理利用青绿饲料饲养畜禽,要根据畜禽种类选择和搭配适宜青绿饲料品种,以保证常年供饲、适时刈割、确定适宜用量并宜切碎鲜喂及防止出现中毒现象.     

The structure of bovine secretory component

Bovine secretory component (SC) has been cleaved with trypsin into a series of fragments and their N-terminal amino acid sequences have been determined. The close homology with the known sequence of human SC has enabled the sequential order of the fragments to be deduced. The results indicate that bovine SC consists of a single glycosylated polypeptide chain (Mr 74,000) folded into five globular immunoglobulin-like domains. A protein (Mr 94,000) has been isolated from detergent solubilised bovine epithelial membranes from liver, intestine and mammary gland. This membrane protein is specific for the binding of J-chain linked IgM and IgA dimers. It can be proteolytically cleaved into a water soluble SC-like portion and a detergent soluble hydrophobic portion. Bovine SC is therefore most likely to be the extracellular part of an epithelial receptor which mediates the transport of IgA dimers to mucosal surfaces. The various tryptic fragments from bovine SC have been shown to differ in their relative binding affinities for IgM and IgA dimers. The results imply that the first three domains of bovine SC are most involved in binding and domains 4 and 5 play subsidiary roles. Computerized prediction and modelling methods have been used to deduce possible tertiary and quaternary structures for SC. There are good indications that the molecule has an elonaged "zig-zag" structure stabilized by longitudinal inter-domain contacts. A model of SC bound to IgA dimer is presented.     

幼犬的家庭训练

当幼犬来到新家后,对于所有的犬主来说,家庭训练是将要面临的第一个任务,这里有三种类型的家庭训练形式:基本的家庭训练、简单的服从训练、解手(或如厕)训练.     

幼犬培训在警犬训练中的重要性

幼犬培训是警犬训练工作的基础,要使犬具备良好的警用品质,完成警犬作业的基础能力,就必须经过幼犬培训。笔者就幼犬培训的重要性,结合实际工作体会谈几点看法。一、利于培养幼犬的依恋性,建立人与犬的亲和关系。幼犬由于神经机能不完善,缺乏对事物的辨别能力,训犬员很容易与犬接触,因此训练的理想时期是从幼犬出生后60天左右开始,通过日常饲养管理,从“吃”和“玩”两方面满足幼犬的生理和心理需要。从行为学上讲,犬此时将主人作为是自己的伙伴,很容易和人接近、玩耍,此时培训就是使犬逐步建立起对人的良好依恋,为下一步能力复杂化训练建立…     

正确的训练理念和犬且及从性训练的关系

犬是具有较复杂心理活动过程的动物,犬对主人真正意义上的服从应该是发自内心的服从,所以其服从性绝不可以认为单靠较强的机械刺激手段就能在一朝一夕中完成.如何培养犬的服从性,正确的训练理念直接影响着训练效果.