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SUSTAINABLE VALUE CO-CREATION IN BUSINESS NETWORKS
Sylvie Lacoste 글로벌지식마케팅경영학회 2014 Global Marketing Conference Vol.2014 No.6
Although the SDL paradigm has contributed to the conceptualization of “value co-creation”, and despite the prioritization of sustainable marketing by business-to-business corporations, the academic literature has failed to study the role played by sustainability in business-to-business (BtoB) value co-creation. Here, using case studies, we examine how business-to-business companies embrace the concept of sustainability to co-create value, and we further develop the theory through a qualitative approach. Our findings contribute to a better understanding of the interaction between the supplier and customer networks and how the SDL value co-creation translates into business-to-business offering. The customer network is first used by the supplier to create sustainability awareness among end users (social marketing) or to understand their behaviors, whereas the supplier network creates the fit with the customer or end-user expectations for sustainability by delivering a sustainable service targeting performance or supply chain integration (green marketing). The dichotomy between green and social marketing is of high interest for BtoB marketers as in vertical business relationships, upstream companies may implement green marketing but they cannot be certain their efforts will meet the needs of the end users as they have little to no direct contact with these users. Ross et al. (2011) define green marketing, as “companies applying sustainable thinking holistically, from production to post-purchasing service, aiming to balance the company’s need for profit with the wider need to protect the environment”. The authors also recognize that “while companies may do all they can to pursue a green marketing effort to contribute to sustainability, if consumers do not change their own behavior to become more sustainable then little will be achieved” (2011: 149). To overcome this potential hurdle they introduce the concept of “social marketing”, which can be defined as “the systematic application of marketing concepts and techniques, to achieve specific behavioral goals for a social or public good” (French and Blair-Stevens, 2006: 4). If we apply the SDL value co-creation model to this diachronic approach, splitting the production from the use of the product, and even looking at the use of the product across time (i.e., during the product life cycle), then we have to look at the network of actors involved in the different stages of this value co-creation model in a BtoB context. The SDL paradigm implicitly recognizes the value creation network (Lusch and Vargo, 2006), which can be defined as when “actors come together to co-produce value” (Norman and Ramirez, 1994). Cova and Salle (2008: 272) show that to translate the SDL into a BtoB offering, the supplier network must interact with the customer network, “thereby co-creating value with them and for them”. From there, we can suggest that a sustainable value proposition in BtoB will be the process by which companies link the supplier and the customer network while incorporating green and social marketing (Ross et al., 2011). Our findings improve and detail our understanding of this interaction between the supplier and customer networks.
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SUSTAINABLE VALUE CO-CREATION IN BUSINESS NETWORKS
Sylvie Lacoste 글로벌지식마케팅경영학회 2014 Global Marketing Conference Vol.2014 No.7
Although the SDL paradigm has contributed to the conceptualization of “value co-creation”, and despite the prioritization of sustainable marketing by business-to-business corporations, the academic literature has failed to study the role played by sustainability in business-to-business (BtoB) value co-creation. Here, using case studies, we examine how business-to-business companies embrace the concept of sustainability to co-create value, and we further develop the theory through a qualitative approach. Our findings contribute to a better understanding of the interaction between the supplier and customer networks and how the SDL value co-creation translates into business-to-business offering. The customer network is first used by the supplier to create sustainability awareness among end users (social marketing) or to understand their behaviors, whereas the supplier network creates the fit with the customer or end-user expectations for sustainability by delivering a sustainable service targeting performance or supply chain integration (green marketing). The dichotomy between green and social marketing is of high interest for BtoB marketers as in vertical business relationships, upstream companies may implement green marketing but they cannot be certain their efforts will meet the needs of the end users as they have little to no direct contact with these users. Ross et al. (2011) define green marketing, as “companies applying sustainable thinking holistically, from production to post-purchasing service, aiming to balance the company’s need for profit with the wider need to protect the environment”. The authors also recognize that “while companies may do all they can to pursue a green marketing effort to contribute to sustainability, if consumers do not change their own behavior to become more sustainable then little will be achieved” (2011: 149). To overcome this potential hurdle they introduce the concept of “social marketing”, which can be defined as “the systematic application of marketing concepts and techniques, to achieve specific behavioral goals for a social or public good” (French and Blair-Stevens, 2006: 4). If we apply the SDL value co-creation model to this diachronic approach, splitting the production from the use of the product, and even looking at the use of the product across time (i.e., during the product life cycle), then we have to look at the network of actors involved in the different stages of this value co-creation model in a BtoB context. The SDL paradigm implicitly recognizes the value creation network (Lusch and Vargo, 2006), which can be defined as when “actors come together to co-produce value” (Norman and Ramirez, 1994). Cova and Salle (2008: 272) show that to translate the SDL into a BtoB offering, the supplier network must interact with the customer network, “thereby co-creating value with them and for them”. From there, we can suggest that a sustainable value proposition in BtoB will be the process by which companies link the supplier and the customer network while incorporating green and social marketing (Ross et al., 2011). Our findings improve and detail our understanding of this interaction between the supplier and customer networks.
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Michalec, Franç,ois-Gaë,l,Holzner, Markus,Barras, Alexandre,Lacoste, Anne-Sophie,Brunet, Loï,c,Lee, Jae-Seong,Slomianny, Christian,Boukherroub, Rabah,Souissi, Sami Elsevier 2017 Environmental pollution Vol.228 No.-
<P><B>Abstract</B></P> <P>Calanoid copepods play an important role in the functioning of marine and brackish ecosystems. Information is scarce on the behavioral toxicity of engineered nanoparticles to these abundant planktonic organisms. We assessed the effects of short-term exposure to nonfunctionalized gold nanoparticles on the swimming behavior of the widespread estuarine copepod <I>Eurytemora affinis</I>. By means of three-dimensional particle tracking velocimetry, we reconstructed the trajectories of males, ovigerous and non-ovigerous females. We quantified changes in their swimming activity and in the kinematics and geometrical properties of their motion, three important descriptors of the motility patterns of zooplankters. In females, exposure to gold nanoparticles in suspension (11.4 <I>μ</I>g L<SUP>−1</SUP>) for 30 min caused depressed activity and lower velocity and acceleration, whereas the same exposure caused minimal effects in males. This response differs clearly from the hyperactive behavior that is commonly observed in zooplankters exposed to pollutants, and from the generally lower sensitivity of female copepods to toxicants. Accumulation of gold nanoparticles on the external appendages was not observed, precluding mechanical effects. Only very few nanoparticles appeared sporadically in the inner part of the gut in some samples, either as aggregates or as isolated nanoparticles, which does not suggest systemic toxicity resulting from pronounced ingestion. Hence, the precise mechanisms underlying the behavioral toxicity observed here remain to be elucidated. These results demonstrate that gold nanoparticles can induce marked behavioral alterations at very low concentration and short exposure duration. They illustrate the applicability of swimming behavior as a suitable and sensitive endpoint for investigating the toxicity of nanomaterials present in estuarine and marine environments. Changes in swimming behavior may impair the ability of planktonic copepods to interact with their environment and with other organisms, with possible impacts on population dynamics and community structure.</P> <P><B>Highlights</B></P> <P> <UL> <LI> We studied the motion of copepods exposed to non-functionalized gold nanoparticles. </LI> <LI> Exposure depressed swimming activity and velocity in females but not in males. </LI> <LI> This response differs from the hyperactivity commonly observed with pollutants. </LI> <LI> We observed accumulation neither in the digestive track nor on the appendages. </LI> <LI> Nanomaterials can induce marked behavioral toxicity at very low concentrations. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
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Vortex formation mechanism within fuel streams in laminar nonpremixed jet flames
Cha, Min Suk,Son, Jin Woo,Yoon, Sung Hwan,Luong, Hung Truyen,Lacoste, Deanna A.,Sohn, Chae Hoon Elsevier 2019 Combustion and Flame Vol.199 No.-
<P><B>Abstract</B></P> <P>A vortical structure occurring at the fuel stream in laminar nonpremixed jet flames was recently found and shown to have both a fluid-dynamic impact on the flow field and a possible influence on the flame stability and soot formation. We designed a systematic experiment and numerical simulation to investigate the physical mechanisms of this recirculation phenomenon in a coflow system. We hypothesized that a negative buoyancy, caused by the fuel jet being heavier than the ambient air, may play a significant role in the recirculation. Therefore, we experimentally varied the density of the fuel jet using a binary mixture of methane and n-butane, and tested the density of the coflow oxidizer by replacing nitrogen with carbon dioxide. Several fuel jet velocities, flame temperatures, and nozzle diameters were also studied to thoroughly investigate all parameters that might possibly affect the recirculation. As a result, we found that our modified Richardson number, which is based on the cold density difference between the fuel and the coflow, the flame length, and the jet momentum flux, explained the physical mechanism of the recirculation well, with Ri ∼60 being the critical value for formation of the recirculation. The negative buoyancy was the primary driving force behind the recirculation, while the jet momentum mitigated its formation.</P>
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