对“虚概念”问题的两种解决方法利弊分析

概念是逻辑学的基础知识和重要内容,然而到现在为止,在概念的内部还存在着明显的逻辑矛盾,那就是既认为概念必有内涵和外延,又认为虚概念是没有外延的。从虚概念的起源看待虚概念问题,将虚概念分类进行研究,不失为解决虚概念问题的一种新思路。     

认知无线电中基于一致平均的分布式合作算法

认知无线电中首要的任务是认知用户感知外界无线环境进行频谱检测和估计,目前合作式的频谱检测技术由于其良好的检测性能广受人们关注。为了提高认知用户对主用户的检测性能,提出了一种基于一致平均的分布式合作方法,优化了联合检测性能。与传统的AND算法、OR算法比较,仿真结果呈现了较好的检测性能,大大降低了误检概率和虚警概率,提高了检测概率,从而能充分利用空闲频谱。     

虚概念述评

虚概念的问题是逻辑学界长期存在争论的问题,其争论主要有这样几个方面:什么是虚概念?虚概念与假概念有必然关系吗?虚概念有没有外延?对于这些问题,在我国现行的形式逻辑教材里以及逻辑学界存在着许多不同的看法,有些甚至针锋相对。然而,正确理解这些问题,是我们学习逻辑学的基础,对我们正确理解和使用概念进行判断和推理具有重要意义。     

美国虚假专利标记法律制度的修订及评析

从追溯美国虚假专利标记法律制度的历史沿革入手,分析最新的修正案的价值诉求,以及亟需明确的诉权享有者、竞争性损害测量和损失补偿方法等三大问题.在此基础之上,简要回顾中国有关虚假专利标记法律规制的演进,分析中美在该问题上制度设计的差异,以期为中国虚假专利标记制度的进一步完善提供参考.     

教师资格证制度下教师假性成长问题探究

教师资格证制度是我国对教师实行的职业资格认定制度,是国家对专门从事教育教学人员的最基本要求,它规定了从事教师职业必须具备的基本条件。但是我国现存的教师资格证制度是不分级别、终身有效、全国通用的,这势必在给教师带来保障的同时也成为教师假性成长的“温床”。因此,对教师资格证制度要扬长避短,通过对其革新,真正促进教师专业成长。     

财务困境判别模型的个案研究

本文通过对中外学者提出的不同财务困境判别模型在中国上市公司数据适用性的比照研究，证实了在现阶段中国某些上市公司存在不同程度数据失真的情况下，此类模型在预测中的准确性及超前性。同时对财务困境判别模型在中国实际应用中应该注意的问题提出了讨论及思考。     

An improved lock detector for phase-locked communication receivers

A quadrature lock detector is incorporated in almost all coherent radio communication receivers. This commonly-used receiver subsystem is comprised of a quadrature phase detector that drives a low-pass filter, the output of which is subjected to a user-specified threshold to make a lock/unlock decision. Signal acquisition and phase lock are declared if an above threshold condition is observed. Unfortunately, this method of lock detection may yield a positive lock indication when the receiver is false locked; i.e., a classical quadrature lock detector may generate a false-positive lock indication. This tendency to produce an incorrect lock indication can be reduced significantly by using the new lock detector algorithm that is described here. Compared to the classical quadrature lock detector, the new lock detector is better able to differentiate between true phase lock and anomalous false lock. The classical quadrature lock detector is a simple, first-order approximation of the new lock detector algorithm. That is, the new lock detector algorithm consists of a classical quadrature detector that is augmented by a correction term.     

浅论虚假广告的治理

伴随着市场经济的蓬勃发展,作为其负面产物的虚假广告也开始大量充斥于市场,不仅直接侵害了消费者的合法权益,也严重破坏了我国市场经济秩序的健康发展,成为阻制国民经济发展的痼疾。本文从多个角度展开分析,寻求虚假广告在我国泛滥的根源,并提出相应的治理建议。     

论虚假商品信息

该文指出了败德生产经营者制造虚假商品信息的行为,揭示了虚假商品信息的内涵及其存在形式、原因。并探讨了其防范和制约措施。     

Most ankle sprain research is either false or clinically unimportant: A 30-year audit of randomized controlled trials

BackgroundLateral ankle sprain is the most common musculoskeletal injury. Although clinical research in this field is growing, there is a broader concern that clinical trial outcomes are often false and fail to translate into patient benefits.MethodsWe audited 30 years of experimental research related to lateral ankle sprain management (n = 74 randomized controlled trials) to determine if reports of treatment effectiveness could be validated beyond statistical certainty.ResultsA total of 77% of trials reported positive treatment effects, but there was a high risk of false discovery. Most trials were unregistered and relied solely on statistical significance, or lack of statistical significance, rather than on interpreting key measures of minimum clinical importance (e.g., minimal detectable change, minimal clinically important difference).ConclusionFuture clinical trials must adopt higher standards of reporting and data interpretation. This includes consideration of the ethical responsibility to preregister their research and interpretation of clinical outcomes beyond statistical significance.