大肠杆菌内毒素引起肉鸡腹水症的诊治

头面部肿胀、下痢、腹水、腹腔纤维素性渗出及肝脏周围炎、腹膜炎是大肠杆菌内毒素引起的肉鸡腹水症的主要特征，通过临诊症状、病理剖检及细菌分离确诊本病，采用环境消毒及抗生素治疗可有效控制本病。     

草鱼饼形碘泡虫病

本病已知流行于广东、广西、福建、湖南,湖北等养鱼地区,其他省份可能也有此病流行,因随着省间鱼种运搬,病原体也可随之传播他处。据调查,1969年广东南海水产养殖场当时有600多万尾草鱼苗欲运往云南,因天气关系,飞机不能起飞,放到石井鱼苗培育组培育而发病,这可能是本病在广东地区较早的记录。现在已知,广东佛山、肇庆、惠阳、汕头、湛江等地区,都有本病流行,成为草鱼种常见严重疾病之一。     

草鱼饼形碘泡虫病

本病已知流行于广东、广西、福建、湖南，湖北等养鱼地区，其他省份可能也有此病流行，因随着省间鱼种运搬，病原体也可随之传播他处。据调查，1969年广东南海水产养殖场当时有600多万尾草鱼苗欲运往云南，因天气关系，飞机不能起飞，放到石井鱼苗培育组培育而发病，这可能是本病在广东地区较早的记录。现在已知，广东佛山、肇庆、惠阳、汕头、湛江等地区，都有本病流行，成为草鱼种常见严重疾病之一。     

鲢、鳙溶血性腹水病研究

报道了鲢、鳙鱼溶血性腹水病的病原和防治方法。研究结果表明，该病无病毒性病原存在，病原为嗜水气单胞菌嗜水亚种（Aeromonashydrophilasubsp.hydrophila）。采用作者研制的鱼康乐（Y·K·L）进行治疗。治愈率达86．5‰。     

鲢,鳙溶血性腹水病研究

报道了链，鳙，鱼溶血性腹水病的病原和防治方法。研究结果表明，该病无病毒性病原存在，病原为嗜水气单胞菌嗜水亚种。采用作者研制的鱼康乐进行治疗，治愈率达８６．５％。     

褐藻酸寡糖对大菱鲆幼鱼生长性能、血液学指标及非特异性免疫影响

用添加质量分数为0.00%(对照组)、0.02%、0.05%、0.20%、0.50%褐藻酸寡糖(alginate oligosaccharides,AOS)的基础饲料饲养初始体质量为(17.61±0.16)g的大菱鲆(Scophthalmus maximus)幼鱼10周,研究AOS不同添加量对大菱鲆幼鱼生长、血液学指标、非特异性免疫的影响。结果表明:与对照组相比,在4个不同添加量组中,增重率、特定生长率差异无统计学意义(P0.05);各组血液中白细胞含量均提高,差异有统计学意义(P0.05),血红蛋白、红细胞压积及红细胞数差异无统计学意义(P0.05);血清中谷丙转氨酶、谷草转氨酶、总胆固醇、甘油三酯、高密度脂蛋白含量降低,但差异无统计学意义(P0.05);0.02%、0.05%、0.20%组的血清中酸性磷酸酶活力高于对照组,差异有统计学意义(P0.05),但超氧化物歧化酶、溶菌酶活力与对照组差异无统计学意义(P0.05),其中0.05%、0.20%组碱性磷酸酶明显高于对照组(P0.05);添加AOS组肝脏中的酸性磷酸酶活力以及超氧物歧化酶SOD活力与对照组相比差异无统计学意义(P0.05);攻毒试验发现,大菱鲆幼鱼对腹水病的疾病抵抗力随添加量的增加而升高。在本实验条件下,饲料中添加AOS对大菱鲆幼鱼生长性能和血液学指标并无显著影响,但可提高其非特异性免疫功能。建议添加量为质量分数0.05%。     

雪峰山地区"湘潭式"锰矿控矿条件及成因浅析

锰矿是冶金工业的重要原料“,湘潭式”锰矿是湖南省最重要的锰矿类型,而雪峰山地区是湖南省重要的锰矿产地,区内锰矿床(点)众多,锰成矿地质条件有利,地层、构造、岩相、古地理、古气候及丰富的锰质来源,有利于碳酸锰及富锰地层的形成,而后期的构造活动、地形地貌及气候条件又有利于氧化锰矿的形成。因此,对区内的锰矿的控矿条件及成因进行归纳、总结及分析,有利于对区内锰矿的勘查及开发。     

矽卡岩型铁矿与综合物化探找矿效果剖析

叙述了黎城测区1∶5万区域地质矿产调查(平顺、龙镇幅)的野外工作所见到的一些地质现象及物化探综合特征,并结合前人成果性资料:矽卡岩矿床形成于中、浅成侵入体与碳酸盐岩、钙质凝灰岩及钙质页岩等化学性质活泼的围岩接触带及其附近,有关的岩体可为辉长岩及辉绿岩、闪长岩及二长岩、石英闪长岩及石英二长岩、花岗闪长岩及花岗岩。通过利用综合的物化探资料,结合前人成果,对进一步开展优选工作区域,寻找铁矿资源具有重要意义。     

综合物探方法在栖霞中桥地区溶洞塌陷地质灾害调查中的应用

该文论述了在溶洞引发的地面塌陷地质灾害调查中,应用高密度电法、瞬变电磁法、地震频率谐振法进行综合物探勘查的效果,根据本区第四纪地层、灰岩及溶洞充填物质的物性差异,分析研究了岩溶溶洞及塌陷区的物探异常分布特征,并结合钻探验证,有效圈定了调查区岩溶溶洞及地表塌陷区的分布范围,为地质灾害调查与防治提供了科学依据。结合本次综合物探勘查效果,分析了高密度电法、瞬变电磁法及地震频率谐振法在探测溶洞及塌陷区的有效性及局限性。     

国土资源信息化建设中存在的问题及其解决途径

近年来,随着人口的增长和社会经济的发展,国土资源部门的业务工作及范围不断扩大,完成了城镇国有土地登记发证及地籍调查、土地利用总体规划的编制、基本农田保护规划的编制及保护区划定、城镇土地定级估价,此外,还完成了大量的建设项目的     

STUDIES ON IMMUNODIAGNOSIS OFHEPATOPANCREATIC PARVO- LIKEVIRUS DISEASE OF THE CHINESEPENAEID, PENAEUS CHINENSISI. PURIFICATION OF THE VIRUS

The viral disease of penaeids is indistinct but highly dangerous because their symptoms are often masked by some secondary ones.In order to gain knowledge on how to prevent the occurrence and spread of this viral disease, diagnostic studies on the early phase of the hepatopancreatic parvo-like viral (HPV)disease of cultured Penaeus chinensis was conducted using immuno-serological techniques. The purification of HPV was successfully done by density gradient ultracentrifugation of cane sugar.     

Studies on immunodiagnosis of hepatopancreatic parvo-like virus disease of the Chinese penaeid,Penaeus Chinensis I. Purification of the virus

The viral discase of penaeids is indistinet but highly dangerous because their symptoms are often masked by some secondary ones. In order to gain knowledge on how to prevent the occurrence and spread of this viral disease, diagnostic studies on the early phase of the hepatopancreatic parvo-like viral (HPV) disease of culturedPenaeus chinensis was conducted using ummuno-serological techniques. The purification of HPV was successfully done by density gradient ultracentrifugation of cane sugar.     

The mycobiota of discoloured needles of the Swiss stone pine(Pinus cembra L.) in the Tatra Mountains(Poland)

The Swiss stone Pine(Pinus cembra L.) is an alpine species, fairly commonly occurring in the Alps and the Carpathians, close to the timberline. Natural sites of the Swiss stone pine in Poland are found exclusively in the Tatra Mountains, within the area of the Tatra National Park(TNP). In 2017, the health status of the needles of P. cembra was determined and their mycological analysis was carried out. As a result, 11 species of fungi were isolated from the needles showing disease symptoms, manifested by various shades of discoloration. The most frequently observed species was Fusarium oxysporum. It probably does not bring on disease symptoms, but may affect the development of other frequently isolated species(such as Sydowia polyspora, Lophodermium sp. and Lophodermium conigenum) that are pathogenic to Pinus spp.     

海洋鱼类疾病诊断系统中的多参数的证据不确定性推理机制

在分析、归纳、总结不确定性推理相关问题的基础上,提出基于充分性参数、必要性参数和可信度因子(规则强度)等多参数的证据不确定性推理方法。该方法能够表示具有复杂不确定性加权关系的诊断规则,并且能够根据证据规则的约束条件通过数值计算获取规则的不确定性相关参数;通过在开发的海洋鱼类疾病诊断专家系统中的应用,很好地体现了疾病诊断中存在的不确定性,有效地减少了主观因素对诊断结论准确性的影响。     

The mycobiota of discoloured needles of the Swiss stone pine (<Emphasis Type="Italic">Pinus cembra</Emphasis> L.) in the Tatra Mountains (Poland)

The Swiss stone Pine (Pinus cembra L.) is an alpine species, fairly commonly occurring in the Alps and the Carpathians, close to the timberline. Natural sites of the Swiss stone pine in Poland are found exclusively in the Tatra Mountains, within the area of the Tatra National Park (TNP). In 2017, the health status of the needles of P. cembra was determined and their mycological analysis was carried out. As a result, 11 species of fungi were isolated from the needles showing disease symptoms, manifested by various shades of discoloration. The most frequently observed species was Fusarium oxysporum. It probably does not bring on disease symptoms, but may affect the development of other frequently isolated species (such as Sydowia polyspora, Lophodermium sp. and Lophodermium conigenum) that are pathogenic to Pinus spp.     

家庭远程医疗保健系统设计与实现

实现了远程监测和诊断的医疗保健功能.通过网络,把检测到的相关数据传输到数据处理中心,医生就可以进行数据的分析与内容的回复.患者在家中可以进行网上预约,医生将在约定时间通过网络进行实时诊断.该系统特别适用于高传染性疾病的治疗与中老年患者.     

Technique for Controlling Spread of Limnotic Oncomelania

Schistosomiasis is a parasitic disease mostly found in areas along the Changjiang River of China. The disease is spread solely through an intermediary named oncomelania, so its spread of schistosomiasis can be controlled by properly designing water intakes which prevent oncomelania from entering farming land or residential areas. This paper reports a successful design process and a new oncomelania-free intake device. The design of the new intake is based on a sound research program in which extensive experimental studies were carried out to gain knowledge of oncomelania eco-hydraulic behavior and detailed flow field information through CFD simulation.     

GEOGRAPHICAL ENVIRONMENTAL CHARACTERISTICS OF ENDEMIC FLUOROSIS IN CHINA

Endemic fluorosis is given rise to by human intake of excess fluorine from environment by way of food chain. In China it is one of the extensively prevalent endemic diseases and its distribution shows clearly regional characteristics. In macroscopic sight, three large fluorosis zones may be divided: (1) The arid and semi-arid plains in the north of China. These regions have a dry climate, making fluorine accumulation in the Quaternary deposits. Thus, the drinking water with high content of fluorine is the main cause of the disease formation. (2) The Yunnan-Guizhou Plateau. In the region, rocks and soils rich in fluorine bring about fluorine excess in crop food. This plays an important role in the disease formation. (3) Southeast hills. The hot spring with high content of fluorine leads to fluorosis.The fluorine absorbed by people from the environment is firstly from the drinking water and secondly from the crop food originating from soil. The fluorine in the air can be accumulated in crop leaves to make     

Effect of weather conditions on the incidence of Lophodermium yellow needle blight in the dwarf mountain pine in the Karkonosze and Izerskie Mountains (Poland)

The study aimed to determine, by using a statistical model, the effect of weather conditions on the incidence of Lophodermium yellow needle blight causing by new species for science- Lophodermium corconticum, in the mountain dwarf pine growing in the subalpine Karkonosze Mountains and the Izerskie Mountains(Poland). Needles showed symptoms of yellow spots, gradual discolouration and premature fall in July. The assessment of healthiness of infected mountain dwarf pine needles spanned three years(2011- 2013) and was conducted in several test sites in the Karkonosze and Izerskie Mountains. The results were analyzed by taking into account the meteorological conditions. Field observations seem to indicate that the highest infestation of mountain dwarf pine occurs in June and July, while September and October see a significantly lower disease index in the Karkonosze Mountains. The lower indices of the infestation of mountain dwarf pine are characteristic for the vegetation in the Hala Izerska high mountain pasture; whereas the environmental conditions prevailing in the Kocio? Ma?ego Stawu cirque and above the Samotnia hostel are conducive to the development of Lophodermium yellow needle blight.     

Characterization of Pythium chondricola associated with red rot disease of Pyropia yezoensis (Ueda) (Bangiales,Rhodophyta) from Lianyungang,China

Pyropia yezoensis(formerly Porphyra yezoensis) is an economically important red alga that is cultured extensively in China. The red rot disease occurs commonly during Pyropia cultivation,causing serious economic losses. An incidence of red rot disease was found in a P. yezoensis farm from mid-November to mid-December 2015 at Lianyungang, Jiangsu Province, China. Histopathological examination revealed that the naturally infected thalli were infected apparently by a pathogen, leading to red rot symptoms. The causative agent was isolated and identified as the oomycete Pythium chondricola by morphological analysis and sequence analysis of the internal transcribed spacer and cytochrome oxidase subunit 1(cox1). In artificial infection experiments on the P. yezoensis blades, the P. chondricola isolate was able to cause the same characteristic histopathology seen in natural infections. P. chondricola grew well at a wide range of temperatures in the range 8-31℃, salinities at 0-45 and pH 5-9. In an orthogonal test used to determine the effects of environmental factors(temperature, salinity, and zoospore concentration)on infection, the data revealed that temperature was the most important factor to affect red rot disease development, with the optimal conditions for disease expansion being 20℃, 35 salinity, and a zoospore concentration of 10~6 zoospores/mL. The results obtained from the present study prompted us to set up a comprehensive epidemiological study on Pyropia, which will provide support to maintain the healthy development of the Pyropia industry in China.