Neutral Behavior Research Articles

Deviation of Phase Boundary Conditions for Hydrates of Small-Chain Hydrocarbons (CH4, C2H6 and C3H8) When Formed Within Porous Sediments

This research deals with gas hydrates formation and dissociation within a marine quartz-based porous sediment and in batch conditions. Hydrates were formed with small-chain hydrocarbons included in natural gas mixtures: methane and also ethane and propane. The dissociation values were collected and provided both graphically and numerically. The results were then compared with the theoretical hydrate-liquid-vapor phase boundary equilibrium for the same species, defined according to the existing literature. The deviation of the experimental results from the ideal ones, associated with the porous sediment, was quantified and discussed. For the scope, the grain size distribution and chemical composition of the sediment were provided along with the text. The results proved that the different size of guest species and, consequently, the different hydrate structures formed, played a relevant role in determining the promoting, inhibiting or neutral behavior of the porous sediment during the process.

Recorded Justice or Procedural Justice? A Randomized Controlled Experiment of the Influence of Body Worn Cameras and Officer Behavior on Citizen Attitudes

We implement cluster randomization to test the impact of procedurally just and unjust police behavior during a hypothetical traffic stop (versus procedurally neutral behavior), in addition to the impact of BWC notification (versus BWC absence). The findings from post-vignette surveys administered to a random sample of 750 respondents indicate procedural justice has a pronounced effect on citizens’ perceptions of the officer’s behavior, their attitudes about the encounter, and their general views about police and the law within the context of the vignette. BWC neither improved nor worsened attitudes, nor did it buffer the impact of procedurally unjust policing or enhance the impact of procedurally just policing in the eyes of citizens. Tests of asymmetry indicate procedurally unjust police behavior results in more negative judgments of the officer’s behavior in the vignette than procedurally just behavior results in positive judgments. The results suggest that officer behavior matters much more than BWCs.

Neutralization and CO2 fixation behavior of alkaline recycled soil using column tests with CO2 ventilation

AbstractColumn tests were conducted to elucidate the pH neutralization and CO2 fixation behavior of alkaline recycled soils permeated with CO2. The ventilation period required for complete CO2 fixation (tEOF) was estimated from the test results of each column. The maximum amount of CO2 captured per gram of dry soil ((mCO2)max) was determined based on the inflow and outflow of CO2 for each specimen. The investigation into the effects of soil density, specimen height, CO2 gas concentration, and flow rate on tEOF and (mCO2)max revealed that tEOF increased with higher dry density (ρd) or specimen height (H), as a denser and larger specimen consumed more CO2 gas. Conversely, tEOF decreased with a higher CO2 gas concentration (C) or flow volume (Q) because a low C or Q resulted in an insufficient CO2 gas supply to match the consumption induced by the reaction. Lower C and Q tended to yield higher (mCO2)max, whereas higher ρd and H resulted in higher (mCO2)max. Furthermore, (mCO2)max increased with tEOF, with a slight reduction in pH after neutralization with increased tEOF. This phenomenon was attributed to the longer ventilation period enabling more Ca to react with the CO2 gas and maintain the equilibrium state of the reaction. Finally, the evaluation of the CO2 consumption rate (CSR) for each column specimen revealed that a higher C and Q resulted in a lower CSR, whereas a higher H resulted in a higher CSR. Additionally, a longer tEOF was associated with a higher CSR, although some variation was observed.

Gender differences regarding forming the intent to participate in carbon neutral practices: a nationwide sample study of South Korea

For a society to achieve the goal of carbon neutrality, the public must also participate in practices that reduce carbon emissions in their daily lives. This study investigates how males and females differ in forming the intent to participate in such practices. Our analysis of a nationwide survey sample taken from South Korea shows that (1) females have a higher rate of intent to participate in carbon neutral practices; however, (2) the positive effect of the perceived necessity of carbon neutrality on this intent is greater among males. These findings suggest that although males are more restrained regarding their view of carbon neutral practices, their intent to participate in such practices can be greatly increased if they perceive carbon neutrality as necessary. The findings contribute to the existing research on the role of gender in environmental psychology and provide implications for communicating essential information regarding carbon neutral behavior to the general public.

Molecular-Scale Interactions in the Choline Chloride-Ethylene Glycol Deep Eutectic Solvent System: The Importance of Chromophore Charge in Mediating Rotational Dynamics.

We report on the rotational diffusion dynamics of three chromophores (disodium fluorescein, oxazine 725, and perylene) in a series of choline chloride-ethylene glycol (ChCl:EG) deep eutectic solvent (DES) systems. We observe behavior independent of DES bulk viscosity for the cationic and neutral probes and behavior that is consistent with stick-limit interactions for the modified Debye-Stokes-Einstein model for the anionic probe. This finding indicates that the anionic species is integral to the interactions between DES constituent species that are responsible for local organization, consistent with previous MD simulations that showed higher interaction energies associated with both the hydrogen bond donor (EG) and hydrogen bond acceptor (Ch+) interactions with Cl- in ChCl:EG mixtures. The reorientation data reported here also indicate a region around 15 mol % ChCl where the stoichiometric relationship between the species gives rise to changes in the details of intermolecular interactions.

The Role of Charismatic Leadership Tactics and Inconsistent Messages in Processing and Evaluating Climate Change Information

Climate change poses an unprecedented challenge to humanity, and persuasive environmental communication is a crucial step for global leaders to counteract its consequences. Charismatic leaders are especially effective in communicating information. Interestingly, in recent years, there have been frequent incidences where charismatic leaders made inconsistent environmental statements. How people process such inconsistencies can provide key insights into understanding the processing of climate information. In two preregistered online studies (N = 668), we examined how people read and evaluate pro- and contra-environmentalism messages from an environmental, charismatic leader. We found persistent effects of message inconsistencies, leading to longer reading times and lower convincingness ratings for information. However, we failed to find an interaction effect of the experimental manipulations or a main effect of charisma on reading times for environmental messages. In Study 2, we detected an interaction effect of leader charisma and message inconsistency on how convincing participants rated text messages. Participants rated contra-environmental messages as more convincing when following displays of charismatic rather than neutral leader behavior. We discuss future research avenues to explore charismatic leader influences on processing climate change information.

“Will they assume I’m racist?” How racial ingroup members’ stereotypical behavior impacts White Americans’ interracial interaction experiences

Three studies ( N = 1,427) examine White Americans’ threat and stress appraisals and coping strategies in imagined inter- and intraracial interactions when a nearby White person does something racist. White individuals report heightened concern about being stereotyped as racist (i.e., metastereotyping) following an ingroup member’s stereotype-confirming (vs. neutral) behavior (Studies 1–3). Moreover, across studies, these heightened metastereotypes predict greater anxiety, which in turn predicts anticipated coping strategies (e.g., increased motivation to disprove the stereotype). Additionally, relative to imagined interactions with a White partner, these consequences of witnessing a White person’s anti-Black bias are significantly stronger with a Black or Latinx (Studies 1 and 2) but not an Asian (Study 3, preregistered) interaction partner. This work highlights how an ingroup member’s racist behavior is a situational stressor for White people during intergroup encounters, engendering coping strategies to protect the self and manage the ensuing interaction.

Does Scaling Up Pig Farming Promote Carbon Neutrality Among Pig Farmers?

Pig farming is a major source of carbon emissions in China's livestock industry, and the promotion and application of carbon neutral technologies dedicated to carbon reduction and sequestration is a key measure to promote the realization of carbon neutrality in pig farming industry. In the absence of a system for carbon emission reduction in agriculture, it is important to explore whether large-scale pig farming can spontaneously promote the application of carbon neutral technologies by pig farmers. Combined with the technical background of carbon neutrality in pig farming industry and using the field survey data of 468 pig farmers in Shandong Province, this paper empirically analyzed the effect of large-scale pig farming on the carbon neutral behavior of pig farmers. The findings are threefold. Firstly, because of the effect of economies of scale in the application of carbon neutral technologies, large-scale pig farming can promote the carbon neutral behavior of pig farmers. However, the effect of economies of scale in the application of carbon neutral technologies has a boundary, and the annual output of pigs should be maintained at 3000 to 4999. Secondly, among the effects of pig breeding scale on the application and its degree of composting project, state of planting and breeding cycle has no regulating effect. Thirdly, among the effects of pig breeding scale on the application and its degree of biogas engineering, both state of planting and breeding cycle and subsidy for construction of biogas digester have negative regulating effects. In this paper, the pig farming industry is taken as a typical example to reveal the endogenous incentive mechanism of promoting agricultural carbon emission reduction, which provides theoretical reference and experience enlightenment for the formulation of effective policies to promote agricultural carbon neutrality, which are different from industrial industries.

Targeted synthesis, structural elucidation, density functional theory, and molecular docking studies of transition metal(II)/(III) complexes of levofloxacin‐based Schiff base for promising their antioxidant and antibacterial applications

Levofloxacin and 4‐aminoantipyrine undergo a condensation process to synthesize a novel Schiff base ligand (L). Metal complexes containing Co(II), Cu(II), Cd(II), Mn(II), Zn(II), Cr(III), Ni(II), and Fe(III) metal ions are prepared using this Schiff base ligand. The new ligand and its complexes are characterized by elemental analyses, Fourier transform infrared, mass spectrometry, ultraviolet–visible, magnetic moment, 1H‐NMR, molar conductivity, and powder X‐ray diffraction, and further thermogravimetric analysis (TG, DTA) verifies their thermal stability. The metal to ligand ratio is 1:1, according to the analytical results. Spectroscopic methods reveal that metal complexes are expected to have an octahedral geometry and demonstrate a neutral tridentate ligand behavior. It also becomes apparent from the molar conductivity values that all metal complexes are electrolytic in nature except zinc(II) and cadmium(II) complexes which are non‐electrolytes. Moreover, the bioactivity of the compounds are investigated. The antibacterial activity is investigated in relation to various Gram‐positive and Gram‐negative bacteria. The results give good indication for higher activity of the prepared compounds than the standard antibiotic drug. Also, the antioxidant activity of the newly prepared ligand and its complexes has been investigated via 2,2‐diphenyl‐1‐picrylhydrazyle (DPPH) free radical scavenging assay. The findings show that Schiff base complexes exhibit good antioxidant activity. Finally, theoretical density functional theory using density functional theory/B3LYP method and molecular docking studies with two receptors of 3T88 and 3Q8U are calculated for the investigated compounds.

Developing a model of association rules with machine learning in determining user habits on social media

The object of the research is the habits of social media users. The problem in this research is that there is a lot of data spread across social media platforms ranging from image data, text data to audio data, making it difficult to identify starting from user behavior patterns, user interest in certain things and user habits. This research aims to explore scattered text data as text data has not been analyzed deeply in terms of word structure, thus concealing a lot of information and making it difficult to conduct analysis to determine user patterns and behavior on social media. The results obtained from this research are in the form of analysis and models that can identify and understand user patterns and behavior on social media using association rules and machine learning approaches. In applying the association technique, an a priori algorithm is used, which in the process determines all text data into item sets so that it can identify the habits of social media users and in the machine learning process there is a model formation process so that the results can be compared. There are several stages in the process of determining user habits, such as cleaning data, changing unstructured data to structured, then going through the rule association stage using an a priori algorithm applied to social media data so that the relationship can be seen between words. After that, machine learning is applied so that comparisons occur in seeing the relationships between words. This is new research in producing a model to identify user behavior using association rules and machine learning so that it can be used to map positive, negative or neutral user behavior

Can step count be used to identify older adults with high sedentary time and low moderate-to-vigorous physical activity?

Combined high sedentary time (ST) and low moderate-to-vigorous physical activity (MVPA) has been associated with adverse cardiovascular events. However, accurately assessing ST and MVPA in older adults is challenging in clinical practice. To investigate whether step count can identify older adults with unhealthier movement behavior (high ST/low MVPA) and poorer cardiometabolic profile. Cross-sectional study (n = 258; 66 ± 5 years). Step count, ST, and MVPA were assessed by hip accelerometry during 7 days. The cardiometabolic profile was assessed using a continuous metabolic syndrome score (cMetS), including blood pressure, HDL-cholesterol, triglycerides, fasting glucose, and waist circumference. Receiving operating curve analysis was used to test the performance of step count in identifying older adults with unhealthier movement behavior (highest tertile of ST/lowest tertile of MVPA). Healthier movement behavior was defined as lowest tertile of ST/highest tertile of MVPA, with neutral representing the remaining combinations of ST/MVPA. A total of 40 participants (15.5%) were identified with unhealthier movement behavior (ST ≥ 11.4 h/day and MVPA ≤ 10 min/day). They spent ~73% and 0.4% of waking hours in ST and MVPA, respectively. Step count identified those with unhealthier movement behavior (area under the curve 0.892, 0.850-0.934; cutoff: ≤5263 steps/day; sensitivity/specificity: 83%/81%). This group showed a higher cMetS compared with neutral (β = .25, p = .028) and healthier movement behavior groups (β = .41, p = .008). Daily step count appears to be a practical, simple metric for identifying community-dwelling older adults with concomitant high ST and low MVPA, indicative of unhealthier movement behavior, who have a poorer cardiometabolic profile.

Context matters: The influence of the social situation on source memory

AbstractPrevious research has demonstrated that people remember negative reputational information particularly well. However, most of these experiments manipulated the type of information associated with each face, rather than manipulating the circumstances under which people learn this information. The present experiment examines the effect of the social situation on memory for social-exchange relevant information. Faces were paired with descriptions of cheating, trustworthy, or neutral behavior. In addition, the importance of the social situation was manipulated: Participants had either to decide if they would want to work with the described person on a student project (socially relevant scenario) or if they would want to ask this person what time it is while waiting at an airport (socially irrelevant scenario). A multinomial processing tree model was used to measure old–new item discrimination and source memory. Only in the socially relevant scenario a source memory advantage for cheaters was found.

Efficient removal of Cr(VI) by mechanochemically modified pyrites: Self-regulated neutralization behaviors

The pH of the aqueous environment commonly occurs during the application of natural/modified pyrite in water/soil remediation. In this study, mechanochemical modification of natural pyrite (M−pyrite) was employed to remove Cr(VI) over a wide pH range. Self-regulated neutralization was observed during Cr(VI) removal by M−pyrite in the initial pH range of 2.0–12.3. The reductive immobilization of total Cr occurred effectively when the solution self-regulated to a circumneutral pH (pH 5.0–9.0), but only efficient Cr(VI) reduction occurred under strongly acidic or alkaline conditions. Three pathways, i.e., Fe(II) removal, surface sulfide reduction and both combinations, could be revealed for Cr(VI) removal by M−pyrite at circumneutral pH and under strongly alkaline and acidic conditions. As Cr(VI) is reduced by ferrous and sulfide species, the protons generated from pyrite oxidation by O2 are consumed, causing neutral restoration to resist the initial sharp decrease in pH. Effective immobilization of the reduced Cr(VI) was confirmed at an initial pH of 5.0–9.0, but this immobilization did not occur at more acidic and alkaline pH values due to strong Fe(II) dissolution or surface precipitation. The M−pyrite was successfully applied in treating four types of saline industrial Cr(VI) wastewaters, demonstrating the advantage of self-regulated neutralization resistance in complex wastewater matrices.

Germination of aspidosperma discolor a. Dc. Under Different light and Temperature Conditions

Theoretical framework: Among the genera of the Apocynaceae family found in Brazil, Aspidosperma is among the most important, because of its high medicinal and economic value. Objective: The objective of this work was to evaluate the effects of white, far-red, and red light, and the absence of light; as well as the effects of constant temperatures of 25 ºC, 30 ºC and 35 ºC, on seed germination behavior of Aspidosperma discolor A. DC. Method: The material was collected in Atlantic Forest fragments. The germination percentage, speed index, average time and average seed germination speed were evaluated. A completely randomized design was used, and the means were compared by the Tukey test at 95% probability. A 4 x 2 factorial arrangement was used for the evaluation of the light regime (four light regimes and two origins); and for the thermal influence, a 3 x 2 arrangement (three temperature levels and two origins) was employed. Each test had five repetitions with 20 seeds. Results: The results showed that the seeds of both origins presented preferential or neutral photoblastic behavior, with better germination performance at 25 °C. However, they had total germination inhibition when exposed to 35 ºC.

How dyadic appraisal moderate the association between dyadic coping and diabetes management efficacy.

To explore the moderating role of dyadic appraisal in the association between dyadic coping and diabetes management efficacy. Two hundred seventy six middle-aged and older couple pairs with one spouse who had diabetes were recruited from 14 community healthcare centers across Guangzhou. The moderating role of dyadic appraisal was investigated using the actor-partner interdependence moderation model. When both couples considered diabetes to be a shared condition, statistically-significant associations were found between patients' negative (β = -22.7, p = 0.008) and neutral behaviors (β = 13.6, p = 0.017), plus spouses' positive behaviors (β = 22.8, p = 0.009) on their own diabetes management efficacy, respectively (i.e. actor effects); as well as between spouses' positive (β = 16.8, p = 0.028), negative (β = -28.5, p < 0.001), and neutral behaviors (β = 16.9, p = 0.006) on patient's diabetes management efficacy (i.e. partner effects). Dyadic appraisal moderates the association between dyadic coping and diabetes management efficacy.

Does Conceptual Abstraction Moderate Whether Past Moral Deeds Motivate Consistency or Compensatory Behavior? A Registered Replication and Extension of Conway and Peetz (2012).

A long-standing debate in psychology concerns whether doing something good or bad leads to more of the same or the opposite. Conway and Peetz proposed that conceptual abstraction moderates if past moral deeds lead to consistent or compensatory behavior. Although cited 384 times across disciplines, we did not find any direct replications. It was also unclear how increases or decreases from one's baseline prosociality might underlie the effect. A large-scale experiment (N = 5,091) in the registered report format tested Conway and Peetz's original hypothesis. The hypothesized interaction was not replicated: conceptual abstraction did not moderate the effect of recalling moral vs. immoral behavior on prosocial intentions. Our results show that recalling moral behavior led to higher prosocial intentions than recalling either immoral or neutral behavior, irrespective of recalling from the recent or distant past. Thus, the current research found no evidence for compensatory moral behavior, only for positive moral consistency.

Acid and Glutathione Dual-Responsive, Injectable and Self-Healing Hydrogels for Controlled Drug Delivery.

Considering the complexity of physiological microenvironments and the risks of surgical infection, there still remains critical demand to develop a hydrogel as a drug release platform with multifunctional properties, including good neutral stability and sensitive multiple stimuli-responsive behaviors, as well as injectable and self-healing properties. Herein, we present a facile preparation of injectable, self-healing hydrogels with acid and glutathione (GSH) dual-responsiveness for controlled drug delivery. Initially, the anticancer drug camptothecin (CPT) was premodified with disulfide bonds and attached to poly(ethylenimine) (PEI) via the Schiff base reaction, resulting in PEI-CPT. Subsequently, OSA-IR780 was synthesized through the Schiff base reaction involving IR780 with amine groups (IR780-NH2) and oxidized sodium alginate with aldehyde groups (OSA). The formation of PEI-CPT/OSA-IR780 hydrogels with various solid contents occurred rapidly within 40 s through a simple mixing process of the aqueous solution of PEI-CPT and OSA-IR780. These hydrogels exhibited remarkable stability under neutral conditions and controlled release of CPT upon exposure to simulated tumor environments characterized by acidic conditions and elevated GSH concentrations. Furthermore, they had significant injectable and self-healing properties due to the dynamically imine-cross-linked networks. In addition, the prepared hydrogels exhibited long-term biodegradability and biocompatibility. Collectively, these features indicate the great potential of PEI-CPT/OSA-IR780 hydrogels as therapeutic delivery vehicles.

Application of an automated grid deformation tool for divertor shape optimization in SOLPS‐ITER

AbstractAn optimized divertor design is crucial to maximize the lifetime of plasma‐facing components and reduce costs of future fusion power plants. Numerical shape optimization could be a powerful tool to obtain improved designs in an automated way. However, it is not trivial to apply due to the need of a field‐aligned and boundary‐fitted grid for simulating the plasma and quantifying the heat load. This paper shows how a grid deformation tool can automate the gridding process while safeguarding the grid quality. Additionally, sensitivities of shape parameters are computed using finite differences and compared to those obtained by remeshing using standard tools such as CARRE2. The plasma and neutral behavior is simulated using the unstructured SOLPS‐ITER code with the latest advanced fluid neutrals model for an ASDEX Upgrade test case. The comparison shows that, contrary to the remeshing strategy, the grid deformation approach yields smoother sensitivities. Furthermore, it is shown that the deformed grids have better mesh quality in terms of poloidal cell size ratio compared to the grid generated with CARRE2, which improves the accuracy of the simulation. This supports the use of the grid deformation tool for automated shape design in future work.

Agonistic interactions initiated by adult bottlenose dolphins on Antillean manatee calves in the Caribbean Sea.

The dynamics and drivers of inter-species interactions in the wild are poorly understood, particularly those involving social animal species. Inter-species interactions between cetaceans and sirenians have rarely been documented and investigated. Here, we report 10 cases of interaction initiated by adult bottlenose dolphins (Tursiops truncatus) towards Antillean manatee (Trichechus manatus manatus). Interactions were documented through behavioral observations in the wild (n = 7) and from the examination of orphaned calves (i.e., tooth rake marks on their body; n = 4) that entered a rehabilitation facility, one individual both observed interacting with dolphins and found stranded with bite marks. Bottlenose dolphins were observed interacting with orphan manatee calves and with mother-calf pairs, exhibiting agonistic behavior (n = 2), affiliative or neutral behaviors (n = 1), but the behavioral contexts of these interactions remain unclear in most cases (n = 7). Information on stranded individuals was collected from four calves (of 13 examined calves) recovered in poor condition with bottlenose dolphin tooth rakes and bite wounds on their bodies, one of which died. Injury from bite wounds varied in extent and severity, ranging from superficial scratches leaving rake marks to deep lacerations. Our findings suggest the regular occurrence of agonistic behaviors initiated by adult bottlenose dolphins and directed toward manatee calves. However, the drivers of these interactions remain unknown and need to be further investigated.

Robots’ Social Behaviors for Language Learning: A Systematic Review and Meta-Analysis

Although robots’ social behaviors are known for their capacity to facilitate learner–robot interaction for language learning, their application and effect have not been adequately explored. This study reviewed 59 empirical articles to examine the contexts and application of various social behaviors of robots for language learning, and conducted a meta-analysis of 18 study samples to evaluate the effect of robots’ social supportive behaviors on language learning achievement. Results indicate that robots’ social behaviors have mostly been applied in the studies with K–12 students, for learning vocabulary in English, including small sample sizes of below 80 participants, and lasting for one session. Second, various verbal and non-verbal behaviors of robots have been identified and applied, showing mixed results on language learning achievement. Third, robots’ social supportive behaviors have produced a positive effect on language learning achievement compared to neutral behaviors (g = 0.269). Finally, detailed suggestions for future research are discussed.