Electoral research acknowledges the growing significance of the mass media in contemporary campaigns, but scholars are divided on the nature of this influence. Using a unique database that includes both media content and public opinion, we examine the flow of partisan information from newspapers to the voters and assess the press's role in electoral politics and citizen learning. We find that the American press does not present clear and singular messages about presidential elections but, rather, multiple messages about the candidates and the campaign. In addition, perception of the information is shaped as much by an individual's political views as by the objective content. Despite the mixed messages, we find that a newspaper's editorial content is significantly related to candidate preferences in 1992. These results challenge the minimal effects interpretation of the media, because local newspapers can play a significant role in providing cues that influence voters' electoral calculus.

Voting choices are a product of both personal attitudes and social contexts, of a personal and a social calculus. Research has illuminated the personal calculus of voting, but the social calculus has received little attention since the 1940s. This study expands our understanding of the social influences on individual choice by examining the relationship of partisan biases in media, organizational, and interpersonal intermediaries to the voting choices of Americans. Its results show that the traditional sources of social influence still dominate: Interpersonal discussion outweighs the media in affecting the vote. Media effects appear to be the product of newspaper editorial pages rather than television or newspaper reporting, which contain so little perceptible bias that they often are misperceived as hostile. Parties and secondary organizations also are influential, but only for less interested voters—who are more affected by social contexts in general. Overall, this study demonstrates that democratic citizens are embedded in social contexts that join with personal traits in shaping their voting decisions.

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The premise of this article is that adult participation in politics is affected by strong preadult forces in addition to the contemporaneous factors emphasized by recent studies. To test this premise, data are drawn from the 1965–1973 national socialization panel study of young Americans and their parents. Four causal models depicting pathways to participation among young adults are evaluated; each includes civic orientations as intervening variables. Three of the models assess the direct and indirect effects of parental characteristics—socioeconomic status, political activity, and civic orientations. The fourth model assesses the impact of adolescent involvement in high school activities. Taken individually, each pathway is shown to have an effect on adult participation, with parent socioeconomic status and high school activism having the most impact. When the four pathways are combined in a single model to reflect the connections among them, all remain important. The combined model illustrates the importance of a variety of methods of political learning. The combined model also demonstrates the crucial role of civic orientations in converting preadult experiences into later participation. Civic orientations are the primary carriers of preadult political learning. Overall, the results rebut the critics of socialization research who have questioned the existence of a linkage between early learning and adult political behavior.

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On December 2, 1999, 120 pregnant cows were weighed, their body condition scored, and then sorted into six groups of 20 stratified by BCS, BW, breed, and age. Groups were assigned randomly to six, 5.1-ha dormant common bermudagrass (Cynodon dactylon [L.] Pers.) pastures for 2 yr to determine the effects of supplemental Se and its source on performance and blood measurements. During the winter, each group of cows had ad libitum access to bermudagrass/dallisgrass (Paspalum dilatatum Poir.) hay plus they were allowed limited access (1 to 4 d/wk) to a 2.4-ha winter-annual paddock planted in half the pasture. Treatments were assigned randomly to pastures (two pastures per treatment), and cows had ad libitum access to one of three free-choice minerals: 1) no supplemental Se, 2) 26 mg of supplemental Se from sodium selenite/kg, and 3) 26 mg of supplemental Se from seleno-yeast/kg (designed intake = 113 g/cow daily). Data were analyzed using a mixed model; year was the random effect and treatment was the fixed effect. Selenium supplementation or its source had no effect (P > or = 0.19) on cow BW, BCS, conception rate, postpartum interval, or hay DMI. Birth date, birth weight, BW, total BW gain, mortality, and ADG of calves were not affected (P > 0.20) by Se or its source. Whole blood Se concentrations and glutathione peroxidase (GSH-Px) activity at the beginning of the trial did not differ (P > or = 0.17) between cows receiving no Se and cows supplemented with Se or between Se sources. At the beginning of the calving and breeding seasons, cows supplemented with Se had greater (P < 0.01) whole blood Se concentrations and GSH-Px activities than cows receiving no supplemental Se; cows fed selenoyeast had greater (P < or = 0.05) whole blood Se concentrations than cows fed sodium selenite, but GSH-Px did not differ (P > or = 0.60) between the two sources. At birth and on May 24 (near peak lactation), calves from cows supplemented with Se had greater (P < or = 0.06) whole blood Se concentrations than calves from cows fed no Se. At birth, calves from cows fed seleno-yeast had greater (P < or = 0.05) whole blood Se concentrations and GSH-Px activities than calves from cows fed sodium selenite. Although no differences were noted in cow and calf performance, significant increases were noted in whole blood Se concentrations and GSH-Px activities in calves at birth as a result of feeding of seleno-yeast compared to no Se or sodium selenite.

The premise of this article is that adult participation in politics is affected by strong preadult forces in addition to the contemporaneous factors emphasized by recent studies. To test this premise, data are drawn from the 1965–1973 national socialization panel study of young Americans and their parents. Four causal models depicting pathways to participation among young adults are evaluated; each includes civic orientations as intervening variables. Three of the models assess the direct and indirect effects of parental characteristics—socioeconomic status, political activity, and civic orientations. The fourth model assesses the impact of adolescent involvement in high school activities. Taken individually, each pathway is shown to have an effect on adult participation, with parent socioeconomic status and high school activism having the most impact. When the four pathways are combined in a single model to reflect the connections among them, all remain important. The combined model illustrates the importance of a variety of methods of political learning. The combined model also demonstrates the crucial role of civic orientations in converting preadult experiences into later participation. Civic orientations are the primary carriers of preadult political learning. Overall, the results rebut the critics of socialization research who have questioned the existence of a linkage between early learning and adult political behavior.

Stress commonly associated with weaning, marketing, and shipment of feeder cattle can temporarily compromise immune function, thereby reducing the effective response to vaccination intended to control bovine respiratory disease (BRD). Two vaccination timing treatments were used to evaluate the effect of timing of a multivalent modified live virus (MLV) BRD vaccine on health, performance, and infectious bovine rhinotracheitis (IBR) antibody titers of newly received stocker cattle. Crossbred bull and steer calves (n = 528) were weighed (197 ± 2.4 kg) and randomly assigned to MLV vaccination treatment: 1) MLV vaccination upon arrival (AMLV), or 2) delayed (14 d) MLV vaccination (DMLV). All cattle were processed similarly according to routine procedures, with the exception of the initial MLV vaccination timing. Subsequently, BW were recorded on d 14, 28, and 42. Blood samples were collected on d 0, 14, 28, and 42 to determine serum IBR