比较发现和访问科学文献的传统和替代机制
1Mary Alice & Tom O'Malley Library, Manhattan University, Riverdale, NY 10471.
概括
与传统数据库相比,像谷歌学者和OpenAlex这样的替代学术搜索工具提供了更好的文献覆盖范围. 海盗网站和集成图书馆系统提供了最好的全文访问,挑战了传统的资源评估.
科学领域:
- 信息科学 信息科学 信息科学
- 图书统计学 图书统计学
- 学术传播学术交流
背景情况:
- 对研究人员和机构来说,评估学术文献的覆盖率至关重要.
- 传统的图书馆数据库和新的替代平台为研究提供了不同的接入点.
- 了解各种发现工具的优点和弱点对于有效的信息检索至关重要.
研究的目的:
- 为了比较15个不同的学术发现和访问机制的文献和全文覆盖范围.
- 评估传统数据库与其他平台的全面性,包括学术搜索引擎,学术社交网络和盗版网站.
- 为研究人员,学生和信息专业人员提供有关不同学术资源有效性的信息.
主要方法:
- 在七个学科领域对875份文件进行了已知项目搜索.
- 分析了多学科数据库 (Scopus, Web of Science),单主题数据库,集成图书馆搜索 (ILS),Google Scholar,Dimensions,OpenAlex,Academia.edu,ResearchGate,Anna's Archive和Sci-Hub的文献和全文覆盖.
- 评估了覆盖率,并比较了各种传统和替代信息检索系统的性能.
主要成果:
- 谷歌学者,OpenAlex和曼哈顿大学的ILS展示了最全面的文献覆盖范围.
- 谷歌学者超过了曼哈顿大学数据库和Scopus在文献记录中的综合覆盖范围.
- ILS,谷歌学者和海盗网站 (安娜的档案,Sci-Hub) 提供了最好的全文覆盖,尽管一些替代平台具有可用性限制.
结论:
- 其他发现和访问机制,包括谷歌学者和海盗网站,提供了重要的文献和全文覆盖,往往超过传统资源.
- 许多单主题数据库在其专业领域内提供了令人惊的不完整覆盖范围.
- 这些发现需要对学术图书馆和研究人员的信息资源选择,开发和使用策略进行重新评估.
相关概念视频
The Scientific Method
247.4K
The scientific method is a detailed, empirical problem-solving process used by biologists and other scientists. This iterative approach involves formulating a question based on observation, developing a testable potential explanation for the observation (called a hypothesis), making and testing predictions based on the hypothesis, and using the findings to create new hypotheses and predictions.
Generally, predictions are tested using carefully-designed experiments. Based on the outcome of these...
Generally, predictions are tested using carefully-designed experiments. Based on the outcome of these...
247.4K
Introduction to Mechanisms of Enzyme Catalysis
8.9K
For many years, scientists thought that enzyme-substrate binding took place in a simple "lock-and-key" fashion. This model stated that the enzyme and substrate fit together perfectly in one instantaneous step. However, current research supports a more refined view scientists call induced fit. The induced-fit model expands upon the lock-and-key model by describing a more dynamic interaction between enzyme and substrate. As the enzyme and substrate come together, their interaction causes...
8.9K
Ligand Binding and Linkage
4.9K
Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked. In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence...
4.9K
Ligand Binding Sites
13.4K
Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands.
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
13.4K
Drug Discovery: Overview
8.8K
Drug discovery is a multifaceted process involving extensive screening, testing, and optimization of lead compounds to identify potential new drugs for therapeutic use. It combines several approaches, including screening large numbers of natural products, chemical modification of known active molecules, identification of new drug targets, and rational design based on biological mechanisms and drug-receptor structure. These approaches are carried out in both academic research laboratories and...
8.8K
Scientific Laws and Theories
80.7K
Scientific Laws
80.7K


