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1.
An instrumental cigarette smoke monitor (CSM) system designed for human smoking studies has been developed and validated using a smoking machine as a human surrogate. The cigarette holder contains both smoke-mixing and flow-measurement orifices and a smoke-concentration sensor. Smoke flow through the holder and smoke concentration in the holder are determined simultaneously. The two signals are multiplied electronically and the product signal integrated. The integrated response is directly proportional to the amount of particulate matter collected immediately downstream of the holder, regardless of cigarette type or the particular way in which the cigarette is smoked. The CSM is sufficiently sensitive to quantitatively determine the amount of smoke TPM generated from cigarettes in the 1-mg Federal Trade Commission tar-delivery category.  相似文献   

2.
Sharon Ryan 《Synthese》1996,109(2):121-141
The lottery paradox has been discussed widely. The standard solution to the lottery paradox is that a ticket holder is justified in believing each ticket will lose but the ticket holder is also justified in believing not all of the tickets will lose. If the standard solution is true, then we get the paradoxical result that it is possible for a person to have a justified set of beliefs that she knows is inconsistent. In this paper, I argue that the best solution to the paradox is that a ticket holder is not justified in believing any of the tickets are losers. My solution avoids the paradoxical result of the standard solution. The solution I defend has been hastily rejected by other philosophers because it appears to lead to skepticism. I defend my solution from the threat of skepticism and give two arguments in favor of my conclusion that the ticket holder in the original lottery case is not justified in believing that his ticket will lose.  相似文献   

3.
A lightweight head-mounted display holder is described which eliminates the need to hold the head fixed during eye movement recording. A comparison of this device with a standard fixed-head condition indicates that performance is comparable under the two conditions but that subjects report less discomfort with the head-mounted display holder.  相似文献   

4.
Recently a number of critics of traditional approaches to the study of attitudes have stressed the need to study the ways in which people express views in natural discourse. The present study examines the rhetorical aspects of holding strong views by providing a detailed case study. It focuses on the discourse of a family discussing the British Royal Family, where one member of the family is recognized to hold strong views. A number of rhetorical complexities of the discourse are highlighted and particular attention is placed on the argumentative dimensions of holding strong views. It is suggested that strong views are held in relation to opposing views and in arguing about the issue of monarchy participants are also reflexively arguing about arguments. Examples are given to show that the holder of strong views, as opposed to the holder of weak views, does not necessarily have a greater opposition to the assumption of multisubjectivity, for the discourse of views is paradoxically marked by both assumptions of multisubjectivity and intersubjectivity. It is also shown that the holder of strong views may produce a variable discourse. The rhetorical nature of such variability is discussed and implications are drawn for the study of beliefs and for analysing the relations between thinking and arguing.  相似文献   

5.
当个体的特征对周围人的利害影响大于本人时(如残忍),该特征是他相关(other-relevance)的;反之则是主相关(possessor-relevance,如忧郁)的。研究比较了两种视角下(接受者视角:加工他人的特征;持有者视角:加工自我的特征)相关性特征在编码(判断特征词的相关性)与提取(新旧判断)过程中的ERP特点并发现:编码时双视角下都有他相关比主相关的波幅更大;提取时双视角下都有他相关比主相关的N400波形更负,仅在持有者视角时主相关比他相关的P600更正。可见他相关的加工优势体现在双视角下编码的全程与提取的早期,而主相关的优势表现在持有者视角的情景记忆提取过程中。  相似文献   

6.
A rod clamped in a rotatable, vertical vise forms the basis of a sturdy, inexpensive, and convenient bite-board holder for vision research.  相似文献   

7.
A self-contained, inexpensive, disposable infusion pump is described for chronic or acute administration of solutions. The pump consists of a modified disposable syringe that is capable of delivering liquids at rates which may be varied. Pressure resulting from a chemical reaction within a chamber propels a rubber piston, which in turn expels liquids at a uniform rate.  相似文献   

8.
Immoral Beliefs     
Bana Bashour 《Ratio》2013,26(3):299-309
In this paper, I argue that there exists a class of immoral beliefs. These beliefs are immoral not for the usual reasons, i.e. because of their tendency to cause harm, their immoral acquisition, or the fact that they involve unjustified moral judgments. Rather, the class of beliefs to which I wish to draw attention includes beliefs that do not even have any moral content, but whose non‐moral content is still morally significant. These beliefs are immoral because holding them constitutes an immoral condition of the belief‐holder. This usually involves a moral failure of the belief‐holder. We may object to such beliefs for all of the usual reasons, but I wish to draw attention to their objectionable content based on the kind of character they represent a person as having. 1  相似文献   

9.
The automatic processing of information was investigated, varying valence (positive vs. negative) and relevance (other-relevant traits [ORT] vs. possessor-relevant traits [PRT]; G. Peeters, 1983) of stimuli. ORTs denote unconditionally positive or negative consequences for persons in the social environment of the holder of the trait (e.g., honest, brutal) whereas PRTs denote unconditionally positive or negative consequences for the trait holder (e.g., happy, depressive). In 2 experiments using the Stroop paradigm, larger interference effects were found for ORTs than PRTs. This is due to the behavior-relatedness of ORTs. In a go/no-go lexical decision task (Experiment 3), participants either had to withdraw their finger from a pressed key (i.e., "avoid") or had to press a key (i.e., "approach") if a word was presented. Responses to negative ORTs were relatively faster in the withdraw condition, whereas positive ORTs were relatively faster in the press condition.  相似文献   

10.
An efficient method of holding individual fish in position for delivery of visual conditioned stimuli and electrical unconditioned stimuli, and for registration of breathing movements with a thermistor, is described. The holder restrains the fish gently and is readily opened and closed. In addition, a “mechanical fish” signal generator, for assessing thermistor performance in detecting breathing movements, and a safe constant-current electrical shock stimulus generator are described.  相似文献   

11.
12.
Jones  Max 《Synthese》2020,197(9):3683-3683
Synthese - The original publication contained an incorrect copyright holder.  相似文献   

13.
The impact of congruence between social and knowledge ties on performance in diverse groups was examined. Congruence occurs when group members who are socially tied share the same information and a stranger has any unique information. Incongruence occurs when group members who are socially tied possess different information, and one of them shares information with a stranger. In Experiment 1, three-person groups with congruent social and knowledge ties utilized information more effectively, reported more effective group processes, and outperformed groups with incongruent ties. Experiment 2, which involved four-person groups, examined the role of congruence in groups with either a single minority information holder or two equal-sized subgroups. Congruent groups again outperformed incongruent groups, but this was only true when groups had a minority information holder. There was no difference in the performance of congruent and incongruent groups that had equal-sized subgroups. The implications of these findings for analyses of group composition and decision-making are discussed.  相似文献   

14.
Changes in the family make it difficult to define any typical structure. What is most striking is the role of the child, henceforth the holder of certain recognized rights, within a group whose mutual relations are based on the notion of a contract. In this way, we can talk of a family citizenship, acting as the basis for citizenship in society.  相似文献   

15.
This note describes the fabrication of a simple, inexpensive, liquid-tight swivel joint for twist-free coupling of small, freely moving animals to infusion systems. The device uses a disposable hypodermic needle and syringe as the main components, and fabrication requires only readily available hand tools and minimal mechanical expertise.  相似文献   

16.
The Job Components Inventory, a new job analysis technique examining the use of tools and equipment, physical and perceptual requirements, mathematical requirements, communication requirements, and decision-making and responsibility requirements, is introduced. Results of a study of 100 job holders demonstrate a high reliability of the technique in terms of supervisor-job holder agreement, and the method is shown by analysis of variance and cluster analysis successfully to discriminate between and within job titles. The technique is proving to be a practical instrument for use in curriculum development, careers guidance and broad-based training, and recommendations for its further use and evaluations are made.  相似文献   

17.
Improvements on a technique for the study of consummatory behavior and appetitive conditioning in fishes are described: a target-strike detector module easily incorporated into conventional relay programming equipment, a liquid-food formula highly attractive to goldfish and carp, a reliable Teflon-headed syringe plunger capable of handling gritty foods, and a silent food-pumping system.  相似文献   

18.
A cigarette holder that simulates the lips of a human smoker has been tested for use in measurements of yields of tar, nicotine, and carbon monoxide. In this study, we tested five different brands of cigarettes that ranged in tar yield from 1 to 15 mg per cigarette. The dependence of the yields and ventilation rates on insertion depth and pressure exerted on the mouthpiece of the cigarette were investigated.  相似文献   

19.
Human infant transfers filmed in West New Guinea and stored in the archives of Max-Planck Geselschaft are formally described and analyzed relative to reports of similar behavior from nonhuman primates in laboratory and field studies. Motor patterns directed from one individual to another were discriminated and grouped into five categories of behavior ordered according to their relative likelihoods of “damaging aggression” [Fagen, American Naturalist, 115:858–869, 1980]. Transfers generally occurred between two females of different reproductive conditions. Most interactions were directed from the holder of the infant to the infant, demonstrating that the infant is the recipient of most nondamaging as well as potentially damaging behavior. While transfers are characterized by “aggressive restraint,” the least damaging behavior is most likely to precede a transfer and may function to prolong the relative duration of infant holding. Behavior with a relatively high likelihood of damage to the infant by the infant holder is as likely to occur before as after transfer, suggesting that infant transfer behavior in this human society reflects competitive interactions among adult females.  相似文献   

20.
The aim of this research was to examine age differences in children's perceptions of dangerous substances. Children's responses to photographs of child models encountering alcohol, a syringe, medicine, glue, and household bleach were coded for recognition of substance, awareness of potential danger, and understanding of danger or harm. Responses from 59 children (28 girls and 31 boys, who were all children of the required age in an urban primary school) were compared across three age groups (6-7 years, 8-9 years, and 10-11 years). 15 to 18 of 20 children in each of three age groups recognised all the dangerous substances. Significant differences across age groups were found for awareness of the potential harm from alcohol, glue, and medicine, but not for the syringe or bleach. Children reported less serious consequences from ingesting alcohol than other substances, the consequences of sniffing glue tended to be confused with the sticking properties of glue, children's understanding of transmission of germs, disease, and AIDS through syringes was varied, and there was a tendency among the older children to underestimate the potential harm of self-administration of medicines. Findings were discussed in relation to children's concepts of danger and safety education.  相似文献   

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