Subjects: Library Science，Information Science >> Library Science submitted time 2023-08-26 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] Thesauri associative relationships play an important role in indexing and information retrieval, classification and property definition of associative relationships have important significances in information organization.[Method/process] This paper analyzed the characteristics of interspecies relationships in ecology and thesauri associative relationships, and established the link between them. Then, through the combination of different characteristics, it classified the associative relationships by interspecies relationships. Finally, it discussed the construction of associative relationship from the perspective of interspecies relationship.[Result/conclusion] The associative relationships can be classified into four kinds of interspecies relationships, including predation, symbiosis, competition, parasitism. Different associative relationships have different properties, and the classification of associative relationships can provide a new way for the construction of associative relationship.
Subjects: Library Science，Information Science >> Library Science submitted time 2023-07-26 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] In order to enhance the practicability of thesaurus, it is necessary to constantly update new terms in the field to thesaurus. In the process of updating and maintenance, we should explore the distribution characteristics of new terms from the perspective of time and frequency, which can provide reference for the method of discovering new terms.[Method/process] Based on the relevant characteristics of the new terminology, combined with the development distribution of the corresponding document frequency at time point and period, through the relevant statistical analysis, the distribution of terminologies in different development periods is studied, especially the characteristics of terminologies from the beginning to the maturity.[Result/conclusion] It is proved that the new terminology is generally in the growth stage of terminology. When the candidate new terminology keeps positive growth trend for more than a certain number of years, it is considered that the term has all novelty, time persistence and terminological features. Based on the distribution characteristics, the article selects a subject area to discover its new terminology. According to the judgment of the expert, the method has a high accuracy rate in the judgment of new term, and can effectively identify the low frequency words which are more occupied in practical applications.
Subjects: Library Science，Information Science >> Library Science submitted time 2023-07-26 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] By introducing the principles and methods of ecology into the study of knowledge organization system, the functions and actions of knowledge organization system can be brought into full play. [Method/process] Based on the research results of ecology, the principles and methods of ecology are introduced into the construction and application of the knowledge organization system. The biological individual corresponds to the concept individual, the species population and the concept correspond, the biological community and the vocabulary correspond, the biological environment corresponds to the literature environment and on the basis of the complete and consistent correspondence of the structure and function, the working principle and method of the knowledge organization system are studied. [Result/conclusion] The framework of the knowledge organization ecosystem is refined and perfected, and the main contents of each level are analyzed and summarized in the four aspects, including the concept instance, the concept population, the concept community (vocabulary) and the ecosystem.
Subjects: Medicine, Pharmacy >> Preventive Medicine and Hygienics submitted time 2023-06-02 Cooperative journals: 《中国全科医学》
Abstract： Background Allergic bronchopulmonary aspergillosis（ABPA） is a lung disease caused by aspergillus sensitization，which is often misdiagnosed or missed diagnosis due to low prevalence，few case reports，and controversial diagnostic criteria，leading to inappropriate treatment and exacerbation of the disease. Previous studies have shown that ABPA is one of the etiologies of bronchiectasis，but its prevalence and clinical characteristics still remain to be studied. Objective To analyze the prevalence and clinical characteristics of ABPA in patients with bronchiectasis. Methods Outpatients or inpatients diagnosed with bronchiectasis and received examinations for peripheral blood eosinophilcount，serum total IgE and aspergillus- specific IgE at Peking University Third Hospital from January 2012 to September 2021 were retrospectively selected. The data including gender，age，smoking history，asthma/wheezing symptoma，laboratory indicators（peripheral blood eosinophil count，serum total IgE，aspergillus-specific IgE and IgG），chest CT（types of bronchiectasis，number oflobes involved），and pulmonary function indexes〔the first forced expiratory volume as a percentage of the predicted value（FEV1%pred），ratio of the first forced expiratory volume and forced vital capacity in percentage（FEV1/FVC）〕was collected. The Smith score and the Bhalla score was used to evaluate the extent and the severity of bronchiectasis lesions，respectively. The included patients were divided into the ABPA group（n=10） and non-ABPA group（n=149）according to the combination of ABPA and analyzed for the cases with total serum IgE>60 U/mL，total serum IgE> 500 U/mL，total serum IgE>1 000 U/mL，aspergillus-specific IgE>0.35 U/mL，and peripheral blood eosinophils > 0.5×10^9/L. Results In 159 patients with bronchiectasis，10 cases met the diagnostic criteria of ABPA （6.29%，10/159）with elevated aspergillus-specific IgE level（>0.35 U/mL），including 9 cases with aspergillus-specific IgE level >1 000 U/mL and 1 case with aspergillus-specific IgE level<1 000 U/mL but fulfilled 3 other conditions （peripheral blood eosinophil count>0.5×10^9/L，radiological bronchiectasis，positive serum aspergillus-specific IgG），of whom 7 cases had episodic wheezingsymptom and 9 cases with absolute peripheral blood eosinophilia>0.5×10^9/L.Aspergillus-specific IgG was detected in 5 of the 10 cases with ABPA，4 of whom were positive. Chest CT findings showed central bronchiectasis and peripheral bronchiectasis in 6 and 4 of the 10 cases with ABPA，and cystic bronchiectasis were shown in all 10 cases. Compared with the non-ABPA group，the ABPA group showed a higher number of lung lobesinvolved，Smith score and Bhalla score （P<0.05）. Conclusion Some casesmet the diagnostic criteria of ABPA among the patients diagnosed with bronchiectasis in the center，suggesting that total IgE and aspergillus-specific IgE should be detected in patients with central or severe bronchiectasis and increased peripheral blood eosinophils for the early diagnosis of ABPA.
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