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1.
J Appl Psychol ; 2024 Apr 15.
Article in English | MEDLINE | ID: mdl-38619475

ABSTRACT

Employees' responses to diversity initiatives are critical to understand the effectiveness of such initiatives. However, prior research has largely considered the isolated effects of specific favorable or unfavorable employee responses (e.g., support or resistance) from a variable-centered perspective. This prior focus overlooks the potential (a) coexistence of more complex configurations of cognitive, affective, and behavioral response types within individuals and (b) the existence of subpopulations of employees who may respond both favorably and unfavorably, thus displaying ambivalence. To address these shortcomings, we build on the tripartite response model and adopt a person-centered approach to shed light on a more comprehensive spectrum of employees' responses to diversity initiatives. Using latent profile analysis, our results across three studies reveal (Study 1, n = 605) and replicate (Study 2, n = 503 and Study 3, n = 514) four distinct response types: excited supporters, calm compliers, torn shapers, and discontent opponents. Furthermore, using time-lagged data from Study 3, we provide initial insights into relevant person and situation predictors of profile membership and show how employees across profiles differ on work-related outcomes that can be functional or dysfunctional for their organization. Taken together, we aim to initiate a conversation on the complex nature of responses to diversity initiatives within the diversity management literature and call for more research, specifically on ambivalent responses. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

2.
Front Psychol ; 8: 2286, 2017.
Article in English | MEDLINE | ID: mdl-29434557

ABSTRACT

This paper takes us beyond the unethical act and explores the use of moral disengagement as a multi-stage, multi-functional regulatory, and coping mechanism that not only allows individuals to engage in unethical behavior, but also manage the negative emotions (i.e., guilt and shame) from learning the consequences of such behavior. A resource-based lens is applied to the moral disengagement process, suggesting that individuals not only morally disengage prior to committing an unethical act in order to conserve their own resources, but also morally disengage as a coping mechanism to reduce emotional duress upon learning of the consequences of their actions, which we describe as post-moral disengagement. These assertions are tested using a scenario-based laboratory study consisting of 182 respondents. Findings indicate that individuals will morally disengage in order to commit an unethical act, will experience negative emotions from having learned of the consequences, and then will engage in post-moral disengagement as a coping mechanism. In addition, the findings suggest that guilt and shame relate differently to moral disengagement.

3.
PLoS One ; 9(8): e105794, 2014.
Article in English | MEDLINE | ID: mdl-25153329

ABSTRACT

This study describes the physiological performance of two populations of the razor clam Tagelus dombeii from two geographic areas with different histories of exposure to paralytic shellfish poisoning (PSP) linked to the toxic dinoflagellate Alexandrium catenella. Clams from Melinka-Aysén, which are frequently exposed to PSP, were not affected by the presence of toxins in the diet. However, clams from Corral-Valdivia, which have never been exposed to PSP, exhibited significantly reduced filtration activity and absorption, affecting the energy allocated to scope for growth (SFG). Ammonia excretion and oxygen uptake were not affected significantly by the presence of A. catenella in the diet. Measurements of energy acquisition and expenditure were performed during a 12-day intoxication period. According to three-way repeated measure ANOVAs, the origin of the clams had a highly significant effect on all physiological variables, and the interaction between diet and origin was significant for the clearance and absorption rates and for the scope for growth. The scope for growth index showed similar positive values for both the toxic and non-toxic individuals from the Melinka-Aysén population. However, it was significantly reduced in individuals from Corral-Valdivia when exposed to the diet containing A. catenella. The absence of differences between the physiological response of the toxic and non-toxic clams from Melinka-Aysén may be related to the frequent presence of A. catenella in the environment, indicating that this bivalve does not suffer negative consequences from PSP. By contrast, A. catenella has a negative effect on the physiological performance, primarily on the energy gained from the environment, on T. dombeii from Corral-Valdivia. This study supports the hypothesis that the history of PSP exposure plays an important role in the physiological performance and fitness of filter feeding bivalves.


Subject(s)
Bivalvia/physiology , Dinoflagellida , Marine Toxins/toxicity , Shellfish Poisoning , Ammonia/metabolism , Animals , Bivalvia/drug effects , Oxygen Consumption/drug effects , Oxygen Consumption/physiology
4.
Bol. latinoam. Caribe plantas med. aromát ; 13(1): 81-91, ene. 2014. ilus, tab
Article in Spanish | LILACS | ID: lil-726605

ABSTRACT

Berberis darwinii H is a native plant of South America, popularly referred to Michay. This species has historically been used by indigenous cultures of Chile as medicinal herb. To preliminarily assess their anti-inflammatory effects was investigated the aqueous and methanolic root extract this plant in human monocytes. The results indicated that the extracts inhibit the production of superoxide anion, the expression of tumor necrosis factor-alpha (TNF-alpha) and interleukin-1-beta (IL-1beta) in monocytes activated with lipopolysaccharide. This result suggests the existence of compounds with potential anti-inflammatory action in these extracts.


Berberis darwinii H. es una planta nativa de América del Sur, conocida popularmente como Michay. Esta especie ha sido históricamente utilizada por las culturas indígenas de Chile como hierba medicinal. Con el fin de evaluar preliminarmente sus efectos anti-inflamatorios, se investigaron dos tipos de extractos; metanólico y acuoso, preparados a partir de la raíz de esta planta. Los resultados indican que estos extractos inhiben la producción de anión superóxido, la expresión del factor de necrosis tumoral-alfa (TNF-alfa) y de interleucina-1beta, (IL-1beta) en monocitos activados con lipopolisacárido. Estos resultados sugieren la existencia de compuestos con potencial acción antiinflamatoria en esta planta.


Subject(s)
Humans , Anti-Inflammatory Agents , Berberis/chemistry , Plant Extracts/pharmacology , Monocytes , Cell Survival , Interleukin-1beta , Methanol , Plant Roots/chemistry , Superoxides , Toxicity Tests , Tumor Necrosis Factor-alpha
5.
Fish Physiol Biochem ; 39(5): 1215-21, 2013 Oct.
Article in English | MEDLINE | ID: mdl-23420569

ABSTRACT

The in vitro and in vivo effect of prolactin (PRL) on kidney macrophages from Atlantic salmon (Salmo salar) was investigated under the assumption that PRL stimulates immune innate response in mammals. Kidney macrophages were treated two ways: first, cultured in RPMI 1640 medium containing 10, 25, 50 and 100 ng/mL of PRL and second, isolated from a fish with a PRL-injected dose of 100 ng/Kg. Reduced nitro blue tetrazolium (formazan) was used to produce intracellular superoxide anion. Phagocytic activity of PRL was determined in treated cells by optical microscopy observation of phagocytized Congo red-stained yeast. Kidney lysozyme activity was measured in PRL-injected fish. In vitro and in vivo macrophages treated with PRL presented an enhanced superoxide anion production, elevated phagocytic index and increased phagocytic activity. Treated fish showed higher levels of lysozyme activity in the head kidney compared to the control. These results indicate that PRL-stimulated innate immune response in Atlantic salmon and future studies will allow us to assess the possibility of using PRL as an immunostimulant in the Chilean salmon industry.


Subject(s)
Immunity, Innate/drug effects , Immunomodulation/drug effects , Macrophages/immunology , Prolactin/pharmacology , Salmo salar/immunology , Analysis of Variance , Animals , Aquaculture , Congo Red , Dose-Response Relationship, Drug , Formazans , Head Kidney/cytology , Head Kidney/drug effects , Macrophages/drug effects , Muramidase/metabolism , Phagocytosis/drug effects , Prolactin/immunology
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