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The purpose of this study was to develop and empirically evaluate a model that delineated the processes whereby clinical social workers experience burnout and job dissatisfaction in their workplaces. First, on the basis of an array of relevant variables as stress-strain (burnout)--outcome (job dissatisfaction), the proposed model specified interrelationships among work stressors and burnout, the intervening factors between burnout and job satisfaction, and the final outcome variable, job satisfaction. Then the theoretical model was translated into an empirically testable model. Finally, the model was tested with a sample of 165 clinical social workers in Florida by using linear structural relation (LISREL) techniques. The results of analysis of components fit indicated that role conflict did intensify the amount of burnout and job dissatisfaction. Social support acted as an intervening and moderating factor between burnout and job dissatisfaction. lmplications for social work practice are provided. [ABSTRACT FROM AUTHOR]

As the HIV/AIDS epidemic has evolved, heterosexual behaviors have come to be an increasingly important mode of transmission and rates of infection have increased faster among women generally and minority women in particular. Most of what we known about heterosexual risk taking is based on survey data collected from either women or men. These data have been useful for helping to understand different levels and types of risk taking by women and men. However, they provide little information about the levels of risk taking that exist for paired partners in main partner relationships, the types of risks each partner brings to the relationship and how the contribution of partner risks varies. Using data from the pretest of a pilot project designed to test a behavioral intervention to reduce HIV/AIDS transmission among main sex partners, the authors developed four subscales of sexual risk taking for each partner. The association between subscales within and between genders are examined and the subscales are combined to obtain measures of couple risks. Particular attention is given to the gender contribution of partners to couple risk and the differential contribution of types of risk to total risk. The data suggest that, even though men bring relatively higher risks to their main partner relationship than women, this varies inversely with the level of couple risk.

Context: Women's protection against HIV and sexually transmitted diseases (STDs) depends upon their ability to negotiate safer sex. It is important to know how cultural norms and gender roles, which vary by ethnicity, may either constrain or encourage negotiation of condom use., Methods: Questionnaires were completed by 393 low-income non-Hispanic black, Hispanic and non-Hispanic white women who were sexually active and attending family planning and STD clinics and other public health and social service centers in Miami in 1994 and 1995. Multivariate logit techniques were used to identify ethnic differences in relationship dynamics and to determine couple- and individual-level factors associated with consistent use, occasional use or nonuse of condoms., Results: Black and Hispanic women reported higher levels of consistent condom use (15-17%) than did white women (4%). Nearly all black and white women (90-95%) said that they were extremely or somewhat comfortable talking about condoms with their partner, whereas 76% of Hispanic women did so. A larger proportion of Hispanic women (55%) reported joint contraceptive decision-making than did black women (26%) or white women (31%). Among women who reported that their partner made contraceptive decisions, 28% used condoms consistently or occasionally, compared with 24% among women who made the decision themselves. When the couple made the decision jointly, 41% of them were condom users. Hispanic women scored the lowest on a scale of condom-related self-efficacy, yet also reported the highest levels of confidence in their condom negotiating skills. Multivariate analysis indicated that, compared with white women, black and Hispanic women were more likely to be consistent condom users than nonusers (odds ratios, 10.2 and 18.9, respectively). Women who shared financial decision-making with their partner were almost 80% less likely to be a consistent condom user, and women who did not participate in financial decisions were more than 90% less likely to do so, than were women who made monetary decisions independently., Conclusions: HIV prevention and intervention programs should emphasize birth control discussion between partners and the development of condom-related self-efficacy and negotiation skills, and these programs also should customize prevention messages according to ethnicity and social context.

Context: Few U.S. women protect themselves against both pregnancy and sexually transmitted diseases (STDs) by using an efficient contraceptive method and a condom. Understanding the factors that influence dual-method use could help improve interventions aimed at encouraging protective behaviors., Methods: Interviews were conducted with 552 low-income women at risk of HIV who attended public health or economic assistance facilities in Miami in 1994 and 1995. Multinomial logit analyses were used to determine the influence of women's background characteristics, perceived vulnerability to pregnancy and AIDS, and relationship characteristics on the odds of dual-method use., Results: Overall, 20% of the women used dual methods. Women who were not married, who worried about both pregnancy and AIDS, who had ever had an STD, who were confident they could refuse a sexual encounter in the absence of a condom and who made family planning decisions jointly with their partner were the most likely to use dual methods rather than a single method (odds ratios, 2.0-3.5); those who considered the condom only somewhat effective in preventing AIDS or who shared economic decision-making with their partner were the least likely to use dual methods rather than a single method (0.5-0.6). The results were generally similar in analyses examining the odds of dual-method use involving an efficient contraceptive, except that black and Hispanic women were significantly more likely than whites to use condoms in conjunction with efficient contraceptives (3.3-7.1)., Conclusions: Both women's individual characteristics and the context of their sexual relationships influence whether they simultaneously protect themselves from pregnancy and HIV. The involvement of male partners in family planning decision-making and women's control over economic decision-making ensure greater protection against HIV infection.

Black, Hispanic and white women recruited for an HIV prevention intervention were instructed in the use of the female condom and encouraged to try the device. Of the 231 women who completed the intervention, 29% tried the condom over the course of a month; 30% of those who tried it used it during at least half of their sexual encounters. Both ethnicity and age were associated with trying the device: Nearly 40% of black women and 30% of Hispanic women did so, compared with 18% of white women; 37% of those aged 25-34 tried the female condom, compared with 22% of women younger than 25. Trying the device was more likely among women living with a partner, those with a history of sexually transmitted disease infection, women who had had an HIV test, those who did not believe that the method afforded them a greater degree of overall control than did the male condom and those who had no prior knowledge of the device. Among women who used the device during at least half of their sexual encounters, 27% were black and 44% were Hispanic: 38% were younger than 25, and 43% were single. More regular users were about half as likely as less regular users to experience difficulty with insertion and one-eighth as likely to report the device slipping during use; they were more likely than less regular users to report that sex was more pleasurable with the female condom than with the male condom.

Substance use is frequently assumed to be associated with higher levels of sexual risk-taking and lower levels of condom use. An analysis of 668 black, Hispanic and white low-income women at public health and public assistance facilities in Miami show that 19% engaged in risky sexual behavior over the preceding six months, 24% in substance use and 31% in condom use. Overall, substance users are nearly four and one-half times more likely to take sexual risks than nonusers, but are about half as likely to have relied on condoms. When the probability of condom use is considered in the context of both substance use and sexual risk, substance users who take sexual risks appear just as likely to rely on condoms as are nonusers who take sexual risks and those who do not (odds of 0.43-0.49). However, substance users who do not take sexual risks are much less likely to use condoms (odds of 0.15). This pattern holds among black, Hispanic and white women, and suggests that perceptions of risk and the risks that partners bring to sexual encounters may be more important determinants of condom use than substance use per se.

Two studies were conducted examining the stimulus-control effects of conventional traffic signs as prompts for motor vehicle driver safety belt use. Following pilot research which suggested that a traffic sign reading "Fasten Safety Belt" posted at a parking lot exit was effective in producing small increases in safety belt use, Study I demonstrated the superiority of having human prompters display such signs compared to simply posting the signs. Study II replicated the findings of Study I and found that posted signs became more effective in prompting safety belt use if simple posting was preceded by a period involving human prompters who displayed the signs. The results bear upon the development of more effective use of traffic signs in promoting safety belt use and in viewing such use as an instance of rule-governed behavior.

The results of treating a series of 105 patients (79 with advanced squamous cell carcinoma, 21 with advanced lymphoma, and 5 with miscellaneous tumours) with bleomycin are described. The drug was usually given as a single agent. Four patients with squamous cell carcinoma showed complete regression and there was partial regression in 25. Side effects were frequent, particularly skin changes and stomatitis; death from pneumonitis occurred in one patient.

A binuclear ion ([NH(3))5RuN(2)Ru(NH(3))(5)](5)+ is formed by the direct reaction of N(2) with an aqueous solution of (NH(3))(5)RuOH(2)(2+) at room temperature. The binuclear ion is also formed by the reversible reaction of (NH(3))5RuOH(2)(2+) with (NH(3))(5)RuN(2)(2+). Solid [(NH(3))(5)RuN(2)Ru(NH(3))(5)] (BF(4))(4) has been prepared, and its ultraviolet and infrared spectra are reported.

A chordoma was examined by electron microscopy. It was composed of stellate and physaliphorous cells. The fine structure of these cells is described. Transitional type cells are also described and it is suggested that the physaliphorous cells develop from the stellate cells through a process of vacuolation. Two types of vacuoles are described, ;smooth-walled' and ;villous' endowed with numerous structureless microvilli. Some observations on stained sections are discussed.

The fine structure of a case of differentiated rhabdomyosarcoma of the ear is described. Characteristic actomyosin filaments have been demonstrated in thin sections showing cross-striation (Z bands). There were large numbers of ribonucleoprotein particles but no virus-like particles present. It is hoped that, as in other difficult or rare tumours, electron microscopy may provide an additional clue of some assistance to the pathologist in determining diagnosis or aetiology.