Using experiential knowledge to understand urban rat ecology: A survey of Canadian pest control professionals

Rats (Rattus rattus and Rattus norvegicus) are among the most prolific and widespread urban pest species in the world. However, there is relatively little contemporary data regarding the ecology of rats in urban centers, preventing the development of effective strategies for urban rat management. Practical constraints associated with field studies suggest the need for more efficient methods of data collection, one of which could involve pest control professionals, who have considerable experiential knowledge of urban rats. The objective of this study was to gather data regarding urban rat ecology through a survey of Canadian pest control professionals and to determine whether such a survey could be useful for the collection of ecological data regarding pest species. Survey results suggested that rat infestations fluctuate seasonally and that there are a variety of environmental factors that may attract rats, particularly exposed garbage, abandoned buildings, and compost. Respondents suggested that rat infestations are most frequent and/or severe in residential areas, commercial areas dealing with food, as well as in neighborhoods of low socioeconomic status. The majority of respondents believed that rats pose at least a moderate health risk to the general public and to themselves, and they also believed that although poison baiting is the cheapest and easiest method of rat control, environmental modification is the most effective way to control rat infestations in the long term. Despite issues with low response rates, these results suggest that pest control professionals may be a valuable source of data regarding urban pest species.     

Creating the park cool island in an inner-city neighborhood: heat mitigation strategy for Phoenix, AZ

We conducted microclimate simulations in ENVI-Met 3.1 to evaluate the impact of vegetation in lowering temperatures during an extreme heat event in an urban core neighborhood park in Phoenix, Arizona. We predicted air and surface temperatures under two different vegetation regimes: existing conditions representative of Phoenix urban core neighborhoods, and a proposed scenario informed by principles of landscape design and architecture and Urban Heat Island mitigation strategies. We found significant potential air and surface temperature reductions between representative and proposed vegetation scenarios: 1) a Park Cool Island effect that extended to non-vegetated surfaces; 2) a net cooling of air underneath or around canopied vegetation ranging from 0.9 °C to 1.9 °C during the warmest time of the day; and 3) potential reductions in surface temperatures from 0.8 °C to 8.4 °C in areas underneath or around vegetation.     

Improving the Performance of the Listening Competency Scale: Revision and Validation

Measuring latent traits is central to quantitative listening research and has been the focus of many studies. One such prominent measurement instrument, based on the Wolvin and Coakley (1993) listening taxonomy, was developed by Ford, Wolvin, and Chung (2000). Subsequent validation research (Mickelson & Welch, 2012)called for revisiting and modifying individual items of the Listening Competency Scale. The research presented here outlines the process of revising the items to create a revised scale with a more unified, affective view of listening behavioral practices through self-report and documents the confirmatory analytic results for the revised scale.     

The Influence of Perceived Supervisor Listening Behavior on Employee Commitment

This study seeks to examine the influence of perceived supervisor listening on employee commitment in an organization. Research suggests that in today's organizations managers spend the largest percentage of their time listening, followed by speaking, reading, and writing. Although training addresses speaking and public presentations, interpreting technical reports, and instruction in technical writing, little has been done to either research or train listening skills.

Listening research has primarily focused on listening measurements and assessment (see Rhodes, Watson & Barker, 1990), and identification of specific behaviors associated with listening (see Lobdell & Gluc, 1990). Few studies have examined listening in the organizational setting (see Husband, Cooper, & Monsour, 1988; Husband, Schenck, & Cooper, 1988). A study by Husband, Cooper, and Monsour (1988), explored the initial question of supervisor's perceptions of their own listening behaviors in organizations. Further research by Husband, Schenck, and Cooper (1988) suggests that the subordinate's perception of supervisory listening may be different than the supervisor's actual listening behavior or the supervisor's perception of their own listening behavior. They found that subordinates did not feel at ease when communicating with their supervisors, and that the subordinates perceived that their supervisors were unwilling to listen to them.

As Husband, et al. (1988) suggests, there could be many starting points at which to address organizational listening. Based on some of the findings in their research, supervisor-subordinate listening seems to offer a logical beginning. The supervisor-subordinate relationship represents an essential link in the organizational structure (see Jablin, 1979). Given their argument, if subordinates differ in their perceptions of supervisory listening behavior, and perceive their supervisor's listening negatively, there may be a direct influence on their commitment to their jobs or the organization as a whole. This study attempts to determine the influence of perceived supervisor listening on employee commitment to the organization.

The respondents were 225 occupational employees and 53 managerial employees in a large southwestern utility company. The survey was a 69 item organizational listening questionnaire developed by Arnold (1989). The questionnaire was broken down into four dimensions: (1) feelings about the organization, (2) perception of relationship with supervisor, (3) perception of own communication behavior, and (4) organizational listening behaviors.     

College students’ knowledge about Sickle Cell Disease

ABSTRACT

Sickle Cell Disease (SCD) is a serious health problem affecting millions around the world. Key to prevention is knowledge about the disease and the reproductive implications. This study explored college students’ knowledge about SCD. Participants included 416 college students at a North Texas campus between October and December 2014. A cross-sectional survey design using an 18-question survey was used. Although most participants had heard of SCD, 21% had never heard of the disease. Furthermore, participants lacked knowledge regarding the differences between the disease and carrier status, prevalence, reproductive implications, prevention, and testing. Findings showed that couples had more knowledge about SCD compared to singles and there were no significant differences between those with children and those without indicating a need for education before they start dating. Most participants had not undergone SCD carrier screening and had no interest in screening. The Universal Prevention approach would be a suitable approach and should be utilized in improving knowledge about SCD.     

Cultural integration through shared learning among resettled Bhutanese women

ABSTRACT

The multidimensional needs of recently resettled refugees have been well documented and range from elevated rates of mental illness and health care challenges to difficulties accessing resources due to language and literacy barriers. These factors are largely responsible for the challenges resettled refugees face in acquiring and maintaining stable employment. It is possible that achieving financial stability through steady employment and purposeful money management may alleviate some stressors associated with the resettlement process, though research in this area that is specific to refugees is in its infancy. What is clear, however, is that a traditional approach to mental health treatment (i.e., therapy in a traditional office setting) may lack effectiveness because of the lack of attention to extraneous stressors such as poverty, transportation, and language and literacy challenges that impact resettled refugees. The purpose of this study was to qualitatively assess the impact of a group-based financial education course and social enterprise on the self-reported mental health (i.e., post-traumatic stress symptoms, depression, anxiety, and somatization) of Bhutanese refugee women resettled in the United States. The study also sought to evaluate the acceptability and overall satisfaction with various components of the intervention. This qualitative study was a follow-up to a larger quantitative study that included 65 Bhutanese women who were resettled to the southwestern United States by a large resettlement agency. The results of this study offer insights into the lived experiences of Bhutanese refugees in the United States, particularly related to cultural integration bolstered by group-based education and shared learning opportunities.     

Q methodology in social work research

This article examines Q methodology as an empirical method for use in social work research. Q methodology applies statistical analysis to the qualitative study of human subjectivity such as attitudes, beliefs, feelings and opinions. Q methodology is effective for obtaining data from small samples, and it offers respondents a concise and valid way of expressing their viewpoints with minimal researcher interference. The article provides an overview of Q methodology and presents an actual example of a small‐scale Q study to facilitate a better understanding of the method. We conclude that Q methodology is especially suitable in social work research with respondents who may have difficulties in expressing themselves when more conventional research methods are used. Q methodology is an efficient tool in research involving the exploration and comparison of different points of view.     

The predictive role of bone turnover markers for BMD in middle-aged men

Measurement of bone turnover markers has been proposed as a potentially valuable clinical laboratory aid in osteoporosis risk assessment. These markers may allow quantitative evaluation of rates of bone loss, and thereby identify persons at risk for osteoporosis at an earlier stage. As far as we know, this is the longest longitudinal study on bone turnover markers conducted in adult men. The objectives of this study were to determine whether markers of bone formation (type I procollagen amino-terminal propeptide, PINP, and carboxy-terminal propeptide, PICP), and of bone resorption (type I collagen carboxy-terminal telopeptide, ICTP), are predictive of changes in lumbar spine and femoral neck BMD over a 5-year period, and to determine the ability of the bone resorption marker urine amino-terminal telopeptide (NTx) to explain the variance in BMD change over the past 5 years in a group of men 35–69 years old. In this group, NTx was the only marker to correlate significantly with BMD changes at the femoral neck (r = ?0.21), but not at the spine. The use of the biochemical markers studied to predict change in bone density in adult men in middle-aged years is of very limited value.     

Age related variation of salivary testosterone values in healthy Japanese males

Objective. We examined age associated variation in salivary testosterone values among Japanese males as well as anthropometric measurements.

Methods. Salivary samples were collected in pretreated sodium azide treated tubes. The first series: 15–79-year-old males (n = 99); two morning and two evening samples were collected at home for two days. The second series: 90-year-old males (n = 29); one morning sample was collected. Testosterone values were determined using an iodine125-based radioimmunoassay kit modified for saliva.

Results. Results show 1) a significant decrease in salivary testosterone values from 20s to 40s and older, 2) no significant decline after 40 through 90 years old, 3) no significant age-related differences in the degree of intraindividual diurnal fluctuation across age groups of 40–70s, and 4) higher BMI is associated with the lower salivary testosterone among 40–70s.

Conclusions. These results suggest that neither a constant decrease of salivary testosterone values or markedly reduced intraindividual fluctations are universal aspects of aging. Older males may maintain relatively high testosterone levels compared to younger men and a relatively ‘robust’ neuroendocrinological system.     

Clinical experiences with testosterone therapy: prostate safety

Due to a decrease in Leydig cell function, a considerable proportion of men over 50 years of age will develop hypogonadism. Consequently, loss of libido and several other testosterone-dependent symptoms may become evident. When decreased levels of biologically available testosterone are found, and corresponding symptoms are present, these men could be eligible for testosterone substitution therapy. Testosterone treatment in testosterone-deprived men has been shown to improve general well-being, osteoporosis, muscle atrophy, libido and - if present - anemia. Despite these positive effects, testosterone treatment has to be performed with caution. Although it has not been proven that elevation of the serum testosterone level to the normal range results in a greater risk of developing prostate cancer, the effects of testosterone on a prostate cancer already present are well established. Several studies have demonstrated that testosterone treatment does not result in a significant increase in serum levels of prostate-specific antigen (PSA) or prostate volume. The long-term effects, however, are currently unknown. For these reasons, testosterone treatment should be performed only when the presence of prostate cancer is unlikely; i.e. when PSA levels are within normal limits and digital rectal examination does not reveal any suspicious findings. These examinations may still miss some small prostate cancers that could be promoted by testosterone treatment. The determination of PSA levels under testosterone treatment is necessary every 3 months, at least for the first year. Steadily rising PSA levels require immediate cessation of testosterone administration and the initiation of further diagnostic procedures (prostate biopsy), to rule out prostate cancer.