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摘要： Surgical care is entering a new payment era for inhospital care using the diagnostic related group (DRG) mechanism for Medicare. A study at The Long Island Jewish-Hillside Medical Center showed that a majority of its surgical DRG would be unprofitable under the proposed reimbursement scheme. This study was undertaken to develop a method of allowing the hospital to group patients within each DRG that would show a difference in hospital charges and be clinically meaningful to surgeons. The study implementors tested the hypothesis that entities called identifiers, arbitrarily chosen as mode of admission [emergency (+ER) vs. nonemergency (-ER)] and presence (+T) or absence (-T) of blood transfusion, would show a difference in charges (mean hospital charge exclusive of physician fees) within a DRG. Patients (905) in 9 DRG encompassing general surgery, thoracic surgery, cardiac surgery, neurosurgery, orthopedics, urology, and head and neck surgery were studied. For ER identifier, 8 of 9 DRG were found to be positive (> 20% difference in charges between positive and negative identifier);for T identifier, all DRG (9) were positive. These findings demonstrate that these identifiers may enable teaching institutions to disaggregate each DRG and, in this way, propose more equitable reimbursement rates.

关键词： 逻辑文件   元组   TID   标识符   分系统   数据库系统   物理文件   RDBMS   存取路径   关系数据库管理系统   运行效率  

摘要： 本文介绍关系数据库管理系统RDBMS—1在实现中为提高运行效率所采用的某些技术,主要包括有向的自然联接、文件组织、操作系统接口和缓冲区管理等。

关键词： Bovine or goat 73-bp repeat   Rabbit C family   Rat ID sequence   Rodent type 2 Alu family   tRNA5 Lys   tRNAPhe   tRNAGly  

摘要： Close structural resemblances between several mammalian highly or moderately repetitive families and some specific tRNAs were detected. The rodent type 2 Alu family, rat identifier (ID) sequences, rabbit C family, and bovine or goat 73-bp repeat are most homologous with lysine tRNA₅, phenylalanine tRNA, glycine tRNA, and glycine tRNA, respectively. The homologies extend to secondary structures, and the homologous nucleotides are located on nearly the same secondary structures. The repetitive families mentioned have a common structural organization, with a tRNA-like sequence devoid of an aminoacyl stem region. These features suggest that these repetitive families may be generated by nonhomologous recombination between a tRNA gene and a tRNA-unrelated block.

关键词： 信息传递   文件   数据传送   信息交流   信息块格式   情报系统   数据媒体   文档   标识符   磁盘   软盘   数据集   文件结构(计算机)   数据布置   数据组织   数据块   数据介质  

标准号: BS 6542-1-1984

摘要： Requirements for the interchange of information between users of different information processing systems.

关键词： 数据库   标识符   软件   可读   数据库系统   检索系统   联机检索   情报检索   美国   美利坚合众国   北美洲  

摘要： 当前,人们正处于"情报时代"之中。浩瀚的日益增长的情报不仅影响着几乎所有的学科,同时也影响着所有居民的生活。有效地开发情报源中的精华,充分利用知识成果,直接关系到科研与发展活动的进展,关系到工农业产品质量和人们生活水准的提高。在科学研究与发展活动中,不仅政治家、上层管理人员,政策决策者需要情报,科学家、一般科研人员更需要情报。他们不

关键词： 表达式   标识符   计算程序   存贮器   存储器   计算器   数学模型   试验模型   磁法  

摘要： EL-5100型袖珍式电子计算器,比一般计算器多十个记忆存贮器,可进行手控程序计算.计算过程中不必用任何算法语言,只要按照键盘上按键的功能,直接输入数学表达式和数据即可.输入的程序和输出结果都直观地显示在液

关键词： 索引表   微型机   微型计算机   关键字   MSPLS   检索算法   标识符   算法程序   程序库   程序包   数学软件  

摘要： 在本文给出的程序库系统定义的前提下,建立一个在微型机上的数学软件程序库系统MSPLS.该系统具有程序检索、运行、修改、插入和删除等功能.同时具有结构简单、使用方便、对话灵活和移植容易等特点.经MC-68000微型机上一个月的检验运行表明,工作稳定可靠.

关键词： 多数据库   数据库系统   标识符  

摘要： 在矿冶研究总院计算站研制的,在CROMEMCO Z·80微型机上实现的NMDBMS数据库系统基础上,经过重大改进,又研制了一个比NMDBMS功能更强的数据库系统,该系统可进行多数据库操作;还可按约束条件(单值或多值)对目标(单目标或多目标)进行搜索和自动修改;…;对数据库信息进行处理时,既可进行记录内项间的横向计算和处理,同时也可进行记录间的纵向计算和处理。据了解对多数据库进行操作,尤其是在微型机上实多数据库操作,国内还是首次。一九八三年九月本系统曾对冶金部矿山司生产指标数据库进行了

关键词： Science   Humanities and Social Sciences   multidisciplinary  

摘要： Identifier or ID sequences are present in 62% of the RNA polymerase II and III transcripts made in vitro from [rat] brain nuclei but in fewer than 4% of the transcripts made from the nuclei of other tissues. A homologous 160-nucleotide cytoplasmic poly(A)+ RNA species, BC1, and a smaller species, BC2, are located in vivo exclusively in neural tissues. Cloned ID sequences are polymerase III templates in vitro. A model is suggested in which brain-specific polymerase III transcription of ID sequences located in introns of brain genes activates those genes in a primary manner for polymerase II transcription.

关键词： 标识符   汉字串   COBOL   字符串   循环语句   微型机   微型计算机   源程序   软件   语句格式   数据名   数据处理  

摘要： COBOL语言是计算机用于进行数据处理的高级语言。由于它能对数据进行精确的描述,并在程序中将数据描述和数处理分开,给数据的修改和程序的调试带来方便。COBOL还有强有力的文件处理能力,有进行排序、报表打印等功能,目标程序质量较高,因此对于大量数据处理是一个有力的工