Production of Patellar Lesions by Medial Patellar Desmotomy in Normal Horses

Medial patellar desmotomy was performed on one (treated) hindlimb, and a sham operation on the other (control) hindlimb, of 12 normal horses. The horses were examined for lameness before medial patellar desmotomy and at months 1, 2, and 3. The femoropatellar joints were examined radiographically and arthroscopically at month 3. All horses were lame on the treated limb at months 1, 2, or 3. Radiographic changes, including fragment formation at the distal aspect of the patella and bone production at the attachment of the middle patellar ligament on the patella, were present in 11 horses at month 3. Articular cartilage fibrillation or detachment was seen arthroscopically on the patellas of all treated limbs. In six horses, loosely attached fragments of bone and cartilage were removed arthroscopically from the distal aspect of the patella of the treated limb. The control limbs were clinically, radiographically, and arthroscopically normal throughout the study. Medial patellar desmotomy results in pathologic changes in the articular cartilage of the patella and adjacent soft tissues. Use of this surgical procedure should be reserved for persistent and confirmed cases of upward fixation of the patella.     

Developments in the Location of Selected Computer-Related Industries in the united states

This study focuses upon changes in three computer-related industries between 1974 and 1985. An attempt is made by means of entropy indices and shift-share analysis to determine if diffusion in those industries conforms to the product-cycle model. We employ primarily state-level data derived from County Business Patterns and supplemented by US. Censuses of Manufacturing and Services. Our findings indicate that all the industries displayed substantial increases in employment and considerable dispersion, although by no means were the changes uniform. The hypothesis that the dispersion is following the product-cycle model, that is, from core areas to peripheral regions, receives little support from this study. The model, however, should not be rejected out of hand, because all three industries studied have a duality in the size of firms that the data masks. This duality may affect the applicability of any model. Further attempts to explain the spatial distribution of any of these industries should begin with disintegrated data. Unfortunately such data are not presently easily attainable.     

Adsorption of Phosphate by Amino-Functionalized and Co-condensed SBA-15

In this study, the applications of mesoporous materials based on silica, and those with modifications, namely post-synthetic grafting, co-condensation, and pure SBA-15, were investigated for the removal of phosphate from sewage. The mesostructures were confirmed by X-ray diffraction, Brunauer?CEmmett?CTeller, Fourier transform infrared spectroscopy, and transmission electron microscopy. The absorption of phosphate by the mesoporous adsorbents was examined, using different adsorption models to describe the equilibrium and kinetic data. The maximum adsorption capacities of the mesostructured adsorbents were found to be 69.970, 59.890, and 2.018?mg/g for the co-condensation, post-synthetic grafting, and pure SBA-15, respectively. The kinetic data showed that the adsorption of phosphate onto three different mesostructures followed the pseudo-first-order kinetic model.     

甲基营养型芽孢杆菌NKG-1可湿性粉剂的制备及药效研究

为了制备甲基营养型芽孢杆菌NKG-1可湿性粉剂,评价其防病促生效果。试验以NKG-1为试材,通过筛选载体和助剂,利用混料设计确定可湿性粉剂的最优配方,并进行药效测定。结果表明：NKG-1可湿性粉剂的最佳载体为白炭黑,最佳助剂为烷基萘磺酸盐甲醛缩聚物和嵌段共聚物混合物(Morwet D-500)及烷基萘磺酸盐(Petro AA)。混料设计确定了最优质量配比为：白炭黑：Morwet D-500：Petro AA=72:16:12。药效试验结果表明：NKG-1可湿性粉剂100倍液处理番茄植株后,其鲜重、干重、株高以及根长分别较对照增加了53.34%、61.01%、88.02%、78.53%,对番茄灰霉病的平均防治效果高达82.02%。本研究确定了甲基营养型芽孢杆菌NKG-1可湿性粉剂的最优配比,评测了制剂的药效,为NKG-1的生产应用奠定了试验基础。     

Genetic variation detected with random amplified polymorphicDNA markers among isolates of the red rot disease fungus Pythiumporphyrae isolated from Porphyra yezoensis from Koreaand Japan

ABSTRACT:   Genetic variation of the fungal parasite Pythium porphyrae ,causative organism of red rot disease of Porphyra , isolatedfrom Asan, Mokpo, Pusan and Wando in Korea, and from Aichi, Fukuokaand Miyagi in Japan was investigated by random amplified polymorphicDNA (RAPD) cluster analysis. The total 67 RAPD markers were generatedfrom 38 isolates by RAPD-polymerase chain reaction (PCR) using arbitraryprimers consisting of 10 nucleotide sequences and 33 of them indicatedpolymorphisms. The dissimilarity coefficients calculated from theRAPD banding patterns ranged from 0.0010 to 0.6983. The dendrogramgenerated by the unweighted pair-group method using arithmetic averagesshowed that the 38 isolates were classified into three clusters(Groups 1, 2 and 3). Group 1 consisting of two isolates from Miyagiwas separated from all other isolates by a genetic distance of 0.6983.Groups 2 and 3 containing the majority of the isolates were branchedon genetic distance of 0.3957. These two clusters subdivided intofour and three subclusters, respectively, which were apparentlyassociated with geographic origins of the isolates. Interestingly,the isolates from Asan of Korea were close to Japanese isolatesrather than Korean isolates on genetic diversity. In addition, thegenetic distances of intra-isolates from Japan were higher thanthose from Korea.     

COMPUTED TOMOGRAPHIC APPEARANCE OF PRIMARY LUNG TUMORS IN DOGS

Canine primary lung tumors typically appear radiographically as a well‐circumscribed solitary mass in the periphery of a caudal lung lobe. Consolidated and diffuse forms of primary lung tumors have also been described. Nineteen dogs with computed tomographic (CT) images of the thorax and a histological diagnosis of primary lung tumor (17 primary carcinomas and two primary sarcomas) were evaluated retrospectively to characterize the CT findings. All primary lung tumors were bronchocentric in origin with internal air bronchograms. The bronchi were typically narrowed, displaced, and often obstructed by the tumor. Eighteen of 19 (95%) of the tumors were solitary and there was one pneumonic/alveolar form. Most solitary tumors were well circumscribed (17/18), located in the central to periphery of the lung (14/18), and in a cranial or caudal lobe (16/19). Most primary lung tumors (11/17) had mild to moderate heterogeneous contrast enhancement. Five of 19 dogs (26%) had evidence of pulmonary metastasis. Internal mineralization (3/19) and tracheobronchial lymphadenopathy (4/19) were also identified. On CT examination, solitary, well circumscribed, bronchocentric masses with internal air bronchograms are consistent with a primary pulmonary tumor in dogs.