Evolutionary policy contexts and policies in preparation for the twenty‐first century

The importance of preparing now for the next century is emphasized. The author's field and Kondratiev theories as a basis for long‐range policymaking over periods of dynamic, recon‐figurational change are briefly reviewed, and a number of assumptions relevant to this kind of policymaking are provided.. Equilibrium and nonequilibrium structures and thinking are contrasted. Limitations to control associated with limits to knowledge and knowability are discussed. The possibility is considered that continuation of present policies and practices may accelerate movement along a trajectory to nowhere. Problem solutions are considered within the context of what is meant by a civilized society, and some 15 characteristics of a civilized society are proposed. The theoretical basis for preparation for the Twenty‐First Century is advanced. Deficiencies in the present dominant politicoeconomic theories of Western Capitalistic Democracy and Marxism are discussed, and the need for a new set of “founding fathers” is proposed. The importance of developing and implementing a replacement theory of similar magnitude to present theories is emphasized, and the nature of this theory is briefly sketched. Some recommendations for guided paradigm change are offered.     

Intermittent reinforcement of a continuous response

Konorski showed that when a go/no-go procedure was used, sound quality discriminations were rapidly acquired and sound location discriminations were slowly acquired. These findings have been interpreted as a general constraint on the acquisition of auditory discriminations (quality-location effect). However, experiments carried out within an evolutionary framework (Harrison, 1984) have shown that the rate of acquisition of sound location discriminations varies widely as a function of the inclusion or exclusion of naturalistic features. These data suggest that Konorski's findings were a function of the special conditions of the experiments. The first purpose of the present experiments was to assess whether rats showed the effects noted by Konorski when studied under similar conditions. The second purpose was to study the effect of manipulating two natural features (novelty and stimulus-response adjacency) to assess whether the acquisition rates of quality and location discriminations could be greatly modified or made approximately equal, or both. When a go/no-go procedure was used and the other conditions were similar to those of Konorski, rats acquired a quality discrimination but did not acquire a location discrimination. However, when the S+ or S- were presented through a closely adjacent speaker, the sound location discrimination was acquired as rapidly as the quality discrimination. Finally, preexposing the animal to either S+ or S- retarded the rate of or prevented the acquisition of the quality discrimination. The experiments showed that the quality-location effect was determined primarily by the conditions used in Konorski's experiments, and that the effect is not a general constraint on learning.     

Visual Attention Patterns of Socially Anxious Individuals When Using Facebook: An Eye Tracking Study

Social networking sites (SNSs) are an increasingly used medium for social interactions. For socially anxious individuals, SNS-based communication is often preferred over traditional face-to-face socializing. Yet, research on SNSs usage and social anxiety is still less common, with extant studies being mostly correlational among healthy nonanxious participants. Conversely, here, we examined differences in actual gaze patterns to social and nonsocial stimuli between socially anxious and nonanxious individuals while using Facebook. Socially anxious and nonanxious student participants freely viewed a genuine Facebook profile page designed for the present study, for 3.5 minutes, containing 12 social and 12 nonsocial picture stimuli. Gaze patterns on social and nonsocial areas of interest (AOIs) were explored. Subjective uneasiness experienced when viewing the social pictures and state anxiety were also assessed. Finally, 2 weeks following the task, we evaluated participants’ willingness to participate in a follow-up (fictitious) study that required them to passively view their own Facebook profile, and then to actively use it. Results showed that compared with nonanxious participants, socially anxious participants demonstrated a viewing pattern less favoring social pictures, reflecting an attentional avoidance tendency. A significant inverse correlation between subjective uneasiness and percent of dwell time spent on the social AOI emerged. Socially anxious participants also reported higher levels of state anxiety, which was significantly positively correlated with uneasiness scores. Finally, socially anxious participants were also less willing to actively use their Facebook profile page. This study suggests that social anxious individuals are characterized by attentional and behavioral avoidance tendencies when using Facebook.     

Bias and sensitivity to reinforcement in a concurrent-chain schedule

Six pigeons were trained on concurrent-chain schedules in which the initial links were either dependent (Experiment 1) or independent (Experiment 2) concurrent variable-interval schedules and the terminal links were fixed-duration delays to reinforcement in blackout. A changeover delay of three seconds operated in the initial links. Both the initial- and terminal-link schedule values were varied over 61 experimental conditions. An analysis of the data using the generalized matching law showed that the sensitivity of initial-link response allocation to the frequency of terminal-link production was independent of both the duration of the terminal-link delays and, though less clearly, of the duration of the initial-link schedules. Sensitivity of initial-link response allocation to terminal-link reinforcer-rate ratios was a joint function of the terminal-link durations and the smaller average initial-link duration. The results showed that the generalized matching law is useful in analyzing concurrent-chain schedule performance and that a changeover delay in the initial links eliminates some terminal- to initial-link interactions that have made quantitative predictions for concurrent-chain performances difficult.     

基于泰尔指数的辽宁卫生资源配置公平性分析

利用泰尔指数对辽宁省卫生资源配置公平性进行分析评价,其中包括医院(卫生院)床位、卫生总人员、卫生技术人员、医师和护士(师)等五项.研究结果显示,辽宁卫生资源配置的总体公平性较好,但不同经济发展水平区域卫生资源配置的公平性存在较大差异,区域间差异是导致辽宁卫生资源配置不公平的主要成因.     

Can authorship policies help prevent scientific misconduct? What role for scientific societies?

The purpose of this article is to encourage and help inform active discussion of authorship policies among members of scientific societies. The article explains the history and rationale of the influential criteria for authorship developed by the International Committee of Medical Journal Editors, examines questions about those criteria that emerge from authorship policies adopted by several U.S. medical schools, and summarizes the arguments for replacing authorship with the contributor-guarantor model. Finally, it concludes with a plea for scientific societies to play a prominent role in the ongoing debates about authorship and the alternatives as part of their efforts to encourage ethical conduct among their members. Whether or not scientific societies develop authorship policies of their own, they should undertake vigorous educational efforts to keep their new members adequately informed about the importance of authorship practices in ethical scientific research and publication.