Behavioural determinants of perceived managerial and leadership effectiveness in Argentina

The purpose of this empirical study was to explore the perceptions of Argentinean employees about managerial and leadership effectiveness, and was guided by the following research question: How do people employed in Argentinean companies behaviorally differentiate effective managers from ineffective managers? A total of 42 employees from private and public sector organizations in Cordoba, Argentina, were interviewed using Flanagan’s (1954) critical incident technique. The interviews generated 302 critical incidents of which 155 were examples of positive (effective) managerial behavior, and 147 of negative (least effective/ineffective) managerial behavior. The findings suggest that Argentineans perceive as effective those managers who are supportive, considerate, motivating, caring, good decision makers, approachable, participative, fair-minded, communicative, actively involved, and who act as role models; and this challenges the widely held belief that Argentineans prefer authoritarian managers over democratic ones

Prevalence of metabolic syndrome among HIV-positive and HIV-negative populations in sub-Saharan Africa-a systematic review and meta-analysis

BACKGROUND: Metabolic syndrome (MetS) is a constellation of conditions that increase the risk of cardiovascular diseases. It is an emerging concern in sub-Saharan African (SSA) countries, particularly because of an increasingly aging population and lifestyle changes. There is an increased risk of MetS and its components among people living with Human immune deficiency syndrome (HIV) individuals; however, the prevalence of metabolic syndrome in the SSA population and its differential contribution by HIV status is not yet established. This systematic review and meta-analysis were conducted to estimate the pooled prevalence of metabolic syndrome in people living with HIV and uninfected populations, its variation by sub-components. METHODS: We performed a comprehensive search on major databases-MEDLINE (PubMed), EBSCOhost, and Cochrane Database of Systematic Reviews and Web of sciences for original epidemiological research articles that compared proportions of the MetS and its subcomponents between people living with HIV and uninfected patients and published between January 1990-December 2017. The inclusion criteria were adults aged ≥ 18 years, with confirmed HIV status. We assessed the risk of bias using a prevalence studies tool, and random effect meta-analyses were used to compute the pooled overall prevalence. RESULTS: A total of four cross-sectional studies comprising 496 HIV uninfected and 731 infected participants were included in the meta-analysis. The overall prevalence of MetS among people living with HIV was 21.5% (95% CI 15.09-26.86) versus uninfected 12.0% (95% CI 5.00-21.00%), with substantial heterogeneity. The reported relative risk estimate for MetS among the two groups was twofold (RR 1.83, 95% CI 0.98-3.41), with an estimated predictive interval of 0.15 to 22.43 and P = 0.055 higher for the infected population. Hypertension was the most prevalent MetS sub-components, with diverse proportions of people living with HIV (5.2-50.0%) and uninfected (10.0-59.0%) populations. CONCLUSIONS: The high range of MetS prevalence in the HIV-infected population compared to the uninfected population highlights the possible presence of HIV related drivers of MetS. Also, the reported high rate of MetS, irrespective of HIV status, indicates a major metabolic disorder epidemic that requires urgent prevention and management programs in SSA. Similarly, in the era of universal test and treat strategy among people living with HIV cohorts, routine check-up of MetS sub-components is required in HIV management as biomarkers. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42016045727

Blending in with the crowd: social parasites integrate into their host colonies using a flexible chemical signature.

Social parasites are able to exploit their host's communication code and achieve social integration. For colony foundation, a newly mated slave-making ant queen must usurp a host colony. The parasite's brood is cared for by the hosts and newly eclosed slave-making workers integrate to form a mixed ant colony. To elucidate the social integration strategy of the slave-making workers, Polyergus rufescens, behavioural and chemical analyses were carried out. Cocoons of P. rufescens were introduced into subcolonies of four potential host species: Formica subgenus Serviformica (Formica cunicularia and F. rufibarbis, usual host species; F. gagates, rare host; F. selysi, non-natural host). Slave-making broods were cared for and newly emerged workers showed several social interactions with adult Formica. We recorded the occurrence of abdominal trophallaxis, in which P. rufescens, the parasite, was the donor. Social integration of P. rufescens workers into host colonies appears to rely on the ability of the parasite to modify its cuticular hydrocarbon profile to match that of the rearing species. To study the specific P. rufescens chemical profile, newly emerged callows were reared in isolation from the mother colony (without any contact with adult ants). The isolated P. rufescens workers exhibited a chemical profile closely matching that of the primary host species, indicating the occurrence of local host adaptation in the slave-maker population. However, the high flexibility in the ontogeny of the parasite's chemical signature could allow for host switching

A System of Indicators for Evaluating the Motivation of Employees for Work in Telecommunication Enterprises

The article examines the main problem dealing with the evaluation of the motivation level of employees for work in telecommunication enterprises. The paper considers motivation factors taken into account for the purpose of establishing the general motivation level of the employee. The article describes the classification of the presented factors and determines their significance. SAW method has been used for creating a system of indicators for evaluating the level of motivation. Telekomunikacijų įmonių darbuotojų darbo motyvacijos vertinimo rodiklių sistema Santrauka Straipsnyje  nagrinėjamos  telekomunikacijų  bendrovių  darbuotojų  motyvacijos  problemos,  atskleista  motyvacijos  veiksnių vertinimo problematika. Išnagrinėti motyvaciniai veiksniai, pagal kuriuos nustatomas bendras darbuotojo motyvacijos lygis. Pateiktas motyvacijos veiksnių klasifikavimas, nustatyti veiksnių reikšmingumai. Išnagrinėjus teorinius ir praktinius ska­tinimo veiksnių vertinimo aspektus, taikant daugiakriterį SAW metodą, suformuota motyvacijos sistemos vertinimo rodiklių sistema. Reikšminiai žodžiai: darbuotojų darbo motyvacija, vertinimas, metodas, rodiklis