Universidad Técnica de Comercio

The current research studies the importance of racioethnic equity in the workplace, with a specific focus on management ethnic representativeness (MER). We argue that MER (the alignment of the racioethnic profiles of management and line employees) serves as an indicator of organizational equity and can enhance collective perceptions of fairness and reduce counterproductive work behaviors (CWB). Additionally, we suggest that state-level cultural tightness-looseness (the degree of adherence to social norms and degree of sanctioning) moderates this relationship. In culturally looser states, employees may be more sensitive to equity issues, making MER more impactful on CWB. Across two studies using archival data from the 2002 NSCW and a national retailer, we find consistent support that the relationship between MER and CWBs is moderated by state-level tightness-looseness. Specifically, we find MER's negative effect on CWBs was more pronounced in culturally looser states. This suggests that employees in such environments may be more vigilant to equity issues, making MER a salient factor in their perceptions of organizational equity. This research contributes to the growing body of literature on organizational racioethnic equity and highlights the importance of considering state-level cultural factors in understanding workplace outcomes. Implications, limitations, and future research directions are discussed.

Abstract A new simple, fast, and versatile method is developed to functionalize gold nanoparticles (AuNPs) via nanoscale layers of molecularly imprinted polymers (MIPs). The key step is based on near‐field radical photopolymerization of the MIP prepolymerization mixture. This enables the fabrication of AuNPs@MIPs hybrid nanoparticles, which are used as substrates for localized surface plasmon resonance and surface‐enhanced Raman spectroscopy (SERS) analysis with excellent sensitivity and specificity. To demonstrate the performance of AuNPs@MIPs, methylene blue‐specific MIPs are prepared. The sensitivity of SERS detection is in the range of 10 nm. Specificity is demonstrated by comparing the response to a non‐imprinted control polymer and by interference testing with two analogs (Rhodamine 6G and Rhodamine 110). This fabrication method allows to obtain robust and reusable sensor surfaces with high sensitivity and selectivity. The nanometric thickness of the MIP allows for shorter analysis times (10 min), thereby improving the performance of MIP‐based sensors and opening up new perspectives for the detection of molecules at very low concentrations.

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Agribusiness is a term used to describe the sector that encompasses all economic activities that are related to farming, i.e., breeding, crop production/farming, farm machinery, distribution, marketing etc.It relates to industries that are engaged in farming or that produce farm inputs.Examples of agribusiness include farm machinery manufacturing, seed supply, and agrichemicals.It also is used to describe businesses that are involved in the marketing and distribution of farm products.These businesses include warehouses, wholesalers, processors, retailers, and more.Any company that participates in the production, marketing, safety, and distribution of food is involved in agribusiness.More precisely it is defined as a sector that supports the growth of the agricultural industry, which is pivotal to economic growth.It also continues to play a crucial role in the growth of developing countries.Agribusinesses can potentially improve agricultural productivity, which is why governments often offer subsidies to agricultural businesses.Agricultural activities also contribute to an improved system of food security and sustainable food production, as well as income for a majority of the poor in developing countries.However, the activities increase the emission of greenhouse gases and contribute to global warmingwhich is why innovation is important in the sector to address such problems.Entrepreneur refers to an individual that has an idea and intends to execute on that idea, usually to disrupt the current market with a new product or service.Entrepreneurship in agriculture can also be defined as the formation of novel economic organisation for the intention of growth under risk and uncertainty in agriculture (Dollinger, 2003).Contrary, Gray (2002) defines an entrepreneur as an individual who controls a business with the purpose of growing the business along with leadership and managerial skills necessary for achieving those goals.The most prominent example of entrepreneurship is the starting of new businesses.In economics, entrepreneurship connected with land, labour, natural resources and

We report the first record of the Lesser long-nosed Bat, Leptonycteris yerbabuenae Martinez & Villa-R., 1940 in Nicaragua based on a specimen from San Nicolas, Estelí Department, north-central Nicaragua. The new record extends the known range of this large, migratory, nectar-feeding species 100 km southeast from the closest previous record in western Honduras.

In “Positive Bleeding,” I argue that allusions to blood in contemporary South African art and literature fruitfully link myriad stigmatized experiences and embodiments of self usually considered taboo, including HIV/AIDS, female sexuality, menstruation, and sexual violence. Through Mlu Zondi’s and Ntando Cele’s dance performance piece Silhouette (2005), Zanele Muholi’s mischievous and haunting photographic Period series (2006), and Makhosozana Xaba’s revisionist short story “Inside” (2008), blood is defiantly transformed from a remnant of personal and historic trauma into that which incites female–female pleasure and eroticism. I contend that the politics of visibility operate uncomfortably within all four texts; blood serves as both a reminder of and departure from sensationalized images of violence against lesbians.

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In this paper we investigate the effects of a low applied electric field on a premixed methane/air flame at atmospheric pressure by using a planar laser induced fluorescence (PLIF) technique. Experimental results are presented and discussed that show the change in the OH ground state density distribution as a function of applied voltage. These results are also compared with previously reported chemiluminescence results of OH ∗ for methane/air flames at similar conditions. In both cases, we see a similar change in the flame where the OH or OH ∗ intensity is being redistributed to a smaller volume (a shorter flame). We also present the results of an experiment designed to measure how the total flame surface area changes with an applied voltage. These results indicate that as the voltage is applied, there is slight trend towards a decreasing surface area, which could suggest a modification of the flame speed. Plausible explanations for the modification of the flame structure by the applied electric field are offered based on an ion-current induced dissociative recombination of positive flame ions with electrons at the burner head, resulting in the production of light, highly diffusive radicals in the preheat zone of the flame. These light radicals could potentially serve to modify the local diffusivity of the flame, leading to the observed results.

Mechanical tests were performed in the pre-necking domain of polypropylene (PP) to characterize its mechanical behavior. Test results have distinctly characterized both its viscoelastic and its viscoplastic behavior. The usual approach to studying metals was adopted to investigate the effect of heterogeneities on the different features of the viscoplastic behavior of the polymer. Particular developments were necessary to adapt these methods to the semicrystalline polypropylene. By the macroscopic approach initially introduced by Cottrell, the macroscopic stress was split into an effective stress and a back stress so that the interactions between the crystalline lamellae and the amorphous phase could be taken into account. The modeling of the viscoelastoplastic behavior of PP is described by using the partition of total strain into a viscoelastic strain and a viscoplastic strain. The rheological model of Zener was used and improved with the experimental observations to model the viscoelastic behavior. As for viscoplastic behavior modeling, it's based on the characterization of the mechanical behavior in terms of effective stress and back stress associated with incompatibilities of deformation.