On the Attribution of Parental Competence: Parents' Behavior Matters, not Their Sexual Orientation

Using a vignette approach, two studies examined the impact of three factors on judgments of parental competence: target parents' sexual orientation, gender, and parenting behavior. According to the aversive prejudice framework, people should express their subtle prejudice against lesbian and gay parents when the latter show detrimental parenting behavior - that is, when devaluation is easy to rationalize. Samples of 170 and 290 German heterosexual participants each were presented with a parent-child conflict situation. In Study 1, the child threw a public tantrum during a restaurant visit; in Study 2, the children wanted to play outside instead of doing their homework. Irrespective of target gender, lesbian and gay parents were judged as equally or even somewhat more competent than heterosexual parents. In both studies, parents who responded in an authoritative way received the most positive evaluation of parental competence, whereas parents who responded in an authoritarian way received the most negative evaluation. In neither study, however, there was a significant interaction between parents' sexual orientation and parenting behavior. That is, contrary to hypothesis, lesbian and gay parents did not receive more negative evaluation than heterosexual parents when responding in a comparatively negative, authoritarian or permissive way. Such interaction could also not be found when additionally considering participants' levels of homonegativity or social desirability. The discussion centers on the increasing acceptance of same-sex parenthood as well as the high appreciation of authoritative parenting in contemporary Germany

Probing Bidirectional Plasmon-Plasmon Coupling-Induced Hot Charge Carriers in Dual Plasmonic Au/CuS Nanocrystals

Heterostructured Au/CuS nanocrystals (NCs) exhibit localized surface plasmon resonance (LSPR) centered at two different wavelengths (551 and 1051 nm) with a slight broadening compared to respective homostructured Au and CuS NC spectra. By applying ultrafast transient absorption spectroscopy we show that a resonant excitation at the respective LSPR maxima of the heterostructured Au/CuS NCs leads to the characteristic hot charge carrier relaxation associated with both LSPRs in both cases. A comparison of the dual plasmonic heterostructure with a colloidal mixture of homostructured Au and CuS NCs shows that the coupled dual plasmonic interaction is only active in the heterostructured Au/CuS NCs. By investigating the charge carrier dynamics of the process, we find that the observed interaction is faster than phononic or thermal processes (< 100 fs). The relaxation of the generated hot charge carriers is faster for heterostructured nanocrystals and indicates that the interaction occurs as an energy transfer (we propose Landau damping or interaction via LSPR beat oscillations as possible mechanisms) or charge carrier transfer between both materials. Our results strengthen the understanding of multiplasmonic interactions in heterostructured Au/CuS NCs and will significantly advance applications where these interactions are essential, such as catalytic reactions

Composition-Controlled Laser-Induced Alloying of Colloidal Au–Cu Hetero Nanoparticles

Due to their optical properties (localized surface plasmon resonance, LSPR), colloidally dispersed metal nanoparticles are well suited for selective heating by high-energy laser radiation above their melting point without being limited by the boiling point of the solvent, which represents an excellent complement to wet-chemical nanoparticle synthesis. By combining wet-chemical synthesis and postsynthesis laser treatment, the advantages of both methods can be used to specifically control the properties of nanoparticles. Especially in the colloidal synthesis of nanoalloys consisting of two or more metals with different redox potentials, wet-chemical synthesis quickly reaches its limits in terms of composition control and homogeneity. For this reason, the direct synthesis path is divided into two parts to take the strengths of both methods. After preparing Au–Cu hetero nanoparticles by wet-chemical synthesis, nanoalloys with previous adjusted composition can be formed by postsynthesis laser treatment. The formation of these nanoalloys can be followed by different characterization methods, such as transmission electron microscopy (TEM), where the fusion of both metal domains and the formation of spherical and homogeneous Au–Cu nanoparticles can be observed. Moreover, the alloy formation can be followed by different shifts of X-ray diffraction (XRD) reflections and LSPR maxima depending on the composition

The Impact of Endogenous Motivations on Adoption of IT-Enabled Services: The Case of Transformative Services in the Energy Sector

Transformative services represent a crucial topic in future service research. Particularly in the energy sector, consumer adoption of transformativeoften IT-enabledservices is essential to increased environmental sustainability. As adopting these services increases both individual and collective well-being, research has to delve more deeply into the origins of consumers' motivations. For this reason, this study aims at augmenting the understanding of how different types of motivation determine consumers' intention to adopt transformative services. The proposed model integrates the theory of planned behavior and the self-determination theory and is tested with survey data gathered from 462 users and 537 nonusers of home energy management services. Results indicate that consumers' motivations are major direct determinants of intentions to adopt. While this finding notably holds when consumers perceive the adoption as self-determined and internalize associated values such as environmentalism, motivations based on external rewards and feelings of compulsion matter to a lesser extent. A comparison of users and nonusers reveals important differences in motivation, in particular that extrinsic motivations tend to be more relevant for nonusers than for users

Cryogels from Pt/γ-Fe2O3 and Pd/γ-Fe2O3 NPs as Promising Electrocatalysts for Ethanol Oxidation Reaction

Cryogels from noble metal NPs have proven to be highly efficient catalysts due to their high specific surface area which increases the mass transfer channels and catalytic active sites. By using metal oxides as co-catalysts, the costs of the material can be significantly reduced, while the catalytic activity can remain the same or even improve due to synergetic effects. In this work, we synthesize different cryogel thin films supported on modified ITO substrates from Pt, Pd nanoparticles (NPs), and mixtures of these noble metals with γ-Fe2O3 NPs in a very low concentration (1 wt% of the noble metal). Structural and elemental analysis of the samples are performed, along with the measurement and analysis of their catalytic activity. The electrocatalytic activity of the cryogels towards ethanol oxidation reaction (EOR) in alkaline media was evaluated by means of cyclic voltammetry. By mixing γ-Fe2O3 NPs with Pt or Pd NPs in the cryogel structure, we observe increased tolerance against poisonous surface intermediates produced during the EOR. Moreover, we observe an increase in the catalytic activity towards EOR in the case of the 1 wt% Pd/γ-Fe2O3 cryogel, making them promising materials for the development of direct ethanol fuel cells