Temporal Comparison Research Articles

It takes two to tango: young Chinese consumers’ perspectives on global smartphone brands

PurposeThis paper aims to study how brand owners and users enhance brand bond with three objectives. First, brand owners’ effort (BOE) to exercise care, innovate frequently and differentiate their brands enhances users’ bond with the brand. Second, brand users’ competence (BUC) in their knowledge and experience with the brand’s reputation, value and service quality improves brand bond. Third, BOE significantly enhances BUC.Design/methodology/approachThis study proposed an integrative model with new concepts and tested it with 2,135 young Chinese consumers using global smartphone brands. Results are drawn from structural equation modeling and comparisons between stakeholders and among smartphone brands.FindingsThe results show that BOE and BUC are significant and equally effective at enhancing brand bond. BOE also shows a significantly stronger effect on BUC than on brand bond. The temporal comparison between 2015 and 2018 confirms the changing reality of the smartphone world. As for brand comparison, young consumers perceive that iPhone differentiates itself from Huawei and Samsung rivals in terms of BOE and BUC on brand bond. However, none of these brands show significant differences in terms of BOE effect on BUC.Research limitations/implicationsPlease see detail in the Conclusion and Discussions.Practical implicationsPlease see detail in the Conclusion and Discussions.Social implicationsPlease see detail in the Conclusion and Discussions.Originality/valueThis study introduced a validated model with new concepts based on the global smartphone industry, perceived by young Chinese consumers. The results prove that it takes both the owners and users together to contribute to the brand bond, but brand owners’ role on BUC is more significant.

Production quality and pricing strategy for substitutable products under comparison effects

Comparison effects have been studied extensively in many fields. In particular, existing operations management articles have discussed the impact of comparison effects on enterprises' production and pricing decisions. Research has also shown that consumers' purchasing decisions are primarily determined by three factors: product quality, selling price, and comparison effects. The current study introduces the concepts of social and temporal comparison effects to examine how comparison effects influence a monopolist’s production quality and pricing strategy for substitutable products. Results reveal the following: (1) Setting different prices for even two types of substitutable products with negligible quality differences can divide customers into three groups under the influence of social comparison effects in a single-stage model. (2) The monopolist should avoid using a price discrimination strategy in which products with a short market life cycle have the same quality but different prices. (3) When the market life cycle of products is sufficiently long in the single-product market and the market with two substitutable products, the monopolist’s optimal choice in the second stage is to keep production quality constant and increase the selling price. Consequently, the number of buyers does not decrease because of temporal comparison effects. Therefore, the firm increases its revenue. (4) For the market with two substitutable products with quality differences, one approximate optimal strategy for the enterprise in the second stage is to keep the selling price constant with the assumption that product quality cannot be adjusted after the first period. At this point, the consumption situation in the market is the same as that in the first stage. Therefore, when no external constraints exist, the monopolist firm can obtain more benefits in the second stage than in the first stage by exploiting the temporal comparison effects of consumers in the second stage. (5) When consumer identity information can be confirmed in the market, social comparison effects, similar to temporal comparison effects, could help the enterprise increase its price and profit while maintaining product quality. These social and temporal comparison effects constrain consumers. Thus, the number of people who continue to buy products does not decrease.

Incidence of Mid-Term Prognostic Events in Patients With Acute Coronary Syndrome During the Late 2010s in 2 Tertiary Hospitals in a Rural Area of Japan - A Temporal Comparison.

Background: Data on the incidence of mid-term prognostic events in patients who developed acute coronary syndrome (ACS) in the late 2010s are scarce. Methods and Results: We retrospectively included and collected data for 889 patients with ACS (ST-elevation myocardial infarction [STEMI]/non-ST-elevation ACS [NSTE-ACS]) discharged alive from 2 tertiary hospitals in Izumo City, in rural Japan, between August 2009 and July 2018. Patients were divided into 3 time groups (T1: August 2009-July 2012; T2: August 2012-July 2015; T3: August 2015-July 2018). The cumulative incidence of major adverse cardiovascular events (MACE; comprising all-cause death, recurrent ACS, and stroke), major bleeding, and heart failure hospitalization within 2 years of discharge was compared among the 3 groups. The incidence of freedom from MACE was significantly higher in the T3 group than in the T1 and T2 groups (93 [95% confidence interval {CI} 90-96%] vs. 86% [95% CI 83-90] and 89% [95% CI 90-96], respectively; P=0.03). There was a tendency for a higher incidence of STEMI among patients in T3 (P=0.057). The incidence of NSTE-ACS was comparable among the 3 groups (P=0.31), as was the incidence of major bleeding and hospitalization for heart failure. Conclusions: The incidence of mid-term MACE in patients who developed ACS during the late 2010 s (2015-2018) was lower than that in prior periods (2009-2015).

Characteristics and Clinical Implications of Anti-IFN-α cytokine antibodies in partial Recombinase Activating Gene Deficiency patients before and during the COVID-19 Pandemic

Introduction: With the onset of the COVID-19 pandemic, there was increased attention on anti- IFN-α autoantibodies and its correlation with severe clinical outcomes in a large group of patients. However, this correlation has not been extensively investigated in patients with partial Recombinase Activating Gene Deficiency (pRD) who are known to have increased prevalence of anti- IFN-α autoantibodies. Therefore, there is a need to assess the presence of anti- IFN-α antibodies in pRD patients before and after the COVID-19 pandemic and explore the relationship between anti- IFN-α antibody presence and clinical outcomes. MethodsSera was collected from the whole blood after informed consent and Enzyme-Linked Immunosorbent Assay was conducted to confirm the presence of IgG-specific anti- IFN-α autoantibodies. Positive samples were determined as OD values above 3 standard deviations of the healthy donor OD mean. ResultsOur cohort included both adult (n = 13) and pediatric (n = 9) patients with variants in RAG1 and RAG2. Eleven patients (50%) out of the 22 showed elevated anti- IFN-α autoantibodies levels. Five patients (23%) were defined as low positive for anti- IFN-α autoantibodies, and 6 patients had no autoantibody titers. Of the 22 patients, 16 were symptomatic with infectious and non-infectious complications including recurrent viral and/or bacterial infections, autoimmune cytopenias, and lymphoproliferation. Ten (63%) of the symptomatic patients demonstrated high anti-IFN-α autoantibodies titers. Of the 11 patients with no or low neutralizing anti- IFN-α autoantibodies levels, 5 were asymptomatic.In temporal comparison, 16 samples were collected pre-COVID-19 pandemic; 8 samples were collected during the pandemic, 2 of which belonged to patients with samples collected before and during the pandemic. In the pre-pandemic cohort, 66% had anti- IFN-α autoantibodies. Conversely, during the COVID-19 pandemic, 89% had anti- IFN-α autoantibodies. Of note, one patient who had neutralizing anti- IFN-α autoantibodies remained positive both before and during the pandemic despite HSCT. Patient also had a SARS-CoV-2 infection in summer of 2022 with a mild clinical course.Conclusions & Next Steps: We observed persistence of anti-IFN-α autoantibodies in our cohort post-pandemic and even post-HSCT. It is unclear whether the presence of anti-cytokine antibodies are risk factor for severe COVID-19.

Learning run-and-tumble chemotaxis with support vector machines

To navigate in spatial fields of sensory cues, bacterial cells employ gradient sensing by temporal comparison for run-and-tumble chemotaxis. Sensing and motility noise imply trade-off choices between precision and accuracy. To gain insight into these trade-offs, we learn optimal chemotactic decision filters using supervised machine learning, applying support vector machines to a biologically motivated training dataset. We discuss how the optimal filter depends on the level of sensing and motility noise, and derive an empirical power law for the optimal measurement time with as a function of the rotational diffusion coefficient D rot characterizing motility noise. A weak amount of motility noise slightly increases chemotactic performance.

Temporal comparison of land-use changes and biodiversity in differential IUCN protected-area categories of Bangladesh in the context of co-management

ABSTRACT Protected areas (PA) have been considered as biodiversity conservation hub across the globe. The conventional “top-down” management approach has been failed to ensure resource sustainability in many PA. Therefore, co-management was introduced to secure the PA of Bangladesh and started with legal framework in 2008 (IPAC Project) until 2018 (CREL Project). Thus, land-use and biodiversity change analysis from a decade before and after 2008 has generated comparison of previous and after scenario of co-management. Hence for evaluating effects of co-management on temporal biodiversity and land-use change in Bangladesh, two PA, Chunati Wildlife Sanctuary (CWS) under IUCN Protected Area Category IV and Lawachara National Park (LNP) under IUCN Protected Area Category II, were selected. Community structure of both vascular plants and avifauna species was used to determine current biodiversity variations with habitat influence. Land-use change analysis revealed deforestation and settlements expansion in CWS but decrease in LNP. Trend analysis forecasted good future of LNP in terms of forest cover till 2038. Biodiversity analysis revealed that CWS is slightly more diverse and even than LNP. Comparative analysis recognized prominent loss of biodiversity before co-management period. Therefore, co-management system can be employed in the rest of reserve-forest areas of Bangladesh for conservation betterment.

Bilateral Choroidal Thicknesses Analysis of Active and Resolved Central Serous Chorioretinopathy

Objectives: This study aimed to examine the choroidal thicknesses (ChT) changes before and after resolution of subretinal fluid in patients with central serous chorioretinopathy (CSR) and in their fellow eyes. Materials and Methods: Patients with acute CSR were studied and followed until subretinal fluid resolved. Sixty-eight eyes from 34 CSR cases (24 men and 10 women, mean age of 37.34±6.2, range 27-50) were examined. Their ChT was measured using enhanced depth imaging optical coherence tomography (EDI-OCT). Imaging repeated after sub-retinal fluid resolution. ChT changes were analyzed before and after the resolution of subretinal fluid in both eyes. Results: Mean ChTs in CSR eyes were 387±97 µm, 414±97 µm, and 384±87 µm in 1 mm temporally away from the center, central sub-fovea, and 1 mm nasally away from the center, respectively; and those in the fellow eyes were 283±55 µm, 303±60 µm, and 282±56 µm in the same order. ChT decreased significantly (P≤0.001) to 305±82 µm, 334±86 µm, and 313±76 µm in CSR eyes and to 242±52 µm, 262±55 µm, and 246±48 µm in contralateral eyes in the temporal, central sub-foveal, and nasal sequences after subretinal fluid resolution, respectively. There was a strong correlation between the ChT in active phase and the ChT in resolved phase in both affected and fellow eyes. There was no detectable correlation between central sub-foveal fluid height and sub-foveal choroidal thickness in the affected and fellow eye (P=0.23). Conclusion: Nasal and temporal comparison of the affected and fellow eyes before and after fluid resolution showed that the nasal choroid was thinner than temporal choroid (as the average population) in active phase. In the resolution phase, however, it was the temporal choroid that was thinner than the nasal choroid, and the resolution pattern was not asymmetric.

Spirituality, self-esteem and the mechanisms of social and temporal comparison

Our research objective was to demonstrate that spirituality decreases the mechanisms of social and temporal comparison, and not without consequence, particularly when regarding self-esteem. Thus, this quantitative study aimed to investigate the relationship between a-religious spirituality, social and temporal comparisons and self-esteem. Four questionnaires were completed by 331 participants, each evaluating the different variables. The results confirmed our hypothesis which suggested that individuals with high spiritual scores would have low social and temporal comparison scores on the one hand, and high self-esteem on the other. The theoretical implications and limitations of the study are discussed.

Temporal stability of the hybrid zone between Calocitta magpie-jays revealed through comparison of museum specimens and iNaturalist photos.

Hybrid zones are natural experiments for the study of avian evolution. Hybrid zones can be dynamic, moving as species adjust to new climates and habitats, with unknown implications for species and speciation. There are relatively few studies that have comparable modern and historic sampling to assess change in hybrid zone location and width over time, and those studies have generally found mixed results, with many hybrid zones showing change over time, but others showing stability. The white-throated magpie-jay (Calocitta formosa) and black-throated magpie-jay (Calocitta colliei) occur along the western coast of Mexico and Central America. The two species differ markedly in throat color and tail length, and prior observation suggests a narrow hybrid zone in southern Jalisco where individuals have mixed throat color. This study aims to assess the existence and temporal stability of this putative hybrid zone by comparing throat color between georeferenced historical museum specimens and modern photos from iNaturalist with precise locality information. Our results confirm the existence of a narrow hybrid zone in Jalisco, with modern throat scores gradually increasing from the parental ends of the cline toward the cline center in a sigmoidal curve characteristic of hybrid zones. Our temporal comparison suggests that the hybrid zone has not shifted its position between historical (pre-1973) and modern (post-2005) time periods-a surprising result given the grand scale of habitat change to the western Mexican lowlands during this time. An anomalous pocket of white-throated individuals in the northern range of the black-throated magpie-jay hints at the possibility of prehistorical long-distance introduction. Future genomic data will help disentangle the evolutionary history of these lineages and better characterize how secondary contact is affecting both the DNA and the phenotype of these species.

Spirituality, self-esteem and the mechanisms of social and temporal comparison

Our research objective was to demonstrate that spirituality decreases the mechanisms of social and temporal comparison, and not without consequence, particularly when regarding self-esteem. Thus, this quantitative study aimed to investigate the relationship between a-religious spirituality, social and temporal comparisons and self-esteem. Four questionnaires were completed by 331 participants, each evaluating the different variables. The results confirmed our hypothesis which suggested that individuals with high spiritual scores would have low social and temporal comparison scores on the one hand, and high self-esteem on the other. The theoretical implications and limitations of the study are discussed.

Mapping groundwater discharge seeps by thermal UAS imaging on a wetland restoration site

One of the key metrics for the effectiveness of wetland restoration is whether a restored wetland behaves hydrologically like a natural wetland. Restoration is designed to increase the water residence time on the surface of the site in order to capture and process nutrients, mitigate the impact of local flooding and drought, and provide a habitat for wetland species abundance and biodiversity. Quantifying the change in groundwater presence at the wetland’s surface will inform future freshwater wetland restorations across New England. The ability to produce a comprehensive map of the locations of groundwater discharge over a large area has the potential to provide insight into restoration practice, its success, and its effects on individual seeps over time. Identification, mapping, and measurement of groundwater discharge sites have long been a challenge, but new methodologies are developing with the advances in unmanned aerial systems (UAS). This study uses a UAS-mounted thermal infrared camera to map groundwater seeps on a 25-ha (62-acre) site in Plymouth, Massachusetts, before and after it underwent restoration to a freshwater wetland. Using the thermal map, we located and quantified the spatial extent that of groundwater seeps pre-restoration and the changes after restoration. The location and size of these seeps show that existing groundwater seeps remained immobile through restoration, but their surface expression grew, indicating that restoration removed barriers to surface expression and successfully increased residence time. This analysis using a thermal camera-enabled UAS allows for a temporal comparison over large spatial scales and provides insight into restoration impacts to groundwater expression on the surface of post-agricultural wetland sites.

Pogroms in Kraków in 1918 and 1945: Historical analysis

AbstractWhat can a temporal comparison of two pogroms in the same city in the wake of two vastly different military conflicts reveal about context and function of anti‐Jewish violence? What can it tell us about historical continuity and change? These questions frame the history below which focuses on two pogroms in the city of Kraków on April 16, 1918, and August 11, 1945. This article argues that in both cases perpetrators perceived the state as failing to meet their basic economic, national, and moral expectations after the wars which left political and social chaos, economic ruin, and dismal law and order. To address the state's failings and restore the “moral balance,” the perpetrators targeted the Jews whom they perceived as the state's beneficiaries. After the Second World War, the violence only intensified when the medieval myth of ritual murder reemerged, and Jewish women and children became the targets of aggression. This change can only be explained by the specific context of WWII when redemptive antisemitism of Nazi propaganda and the daily practice of genocide stripped Jews of the remains of their humanity thus marking them as the ultimate threat to Polish survival.

Global land surface 250 m 8 d fraction of absorbed photosynthetically active radiation (FAPAR) product from 2000 to 2021

Abstract. The fraction of absorbed photosynthetically active radiation (FAPAR) is a critical land surface variable for carbon cycle modeling and ecological monitoring. Several global FAPAR products have been released and have become widely used; however, spatiotemporal inconsistency remains a large issue for the current products, and their spatial resolutions and accuracies can hardly meet the user requirements. An effective solution to improve the spatiotemporal continuity and accuracy of FAPAR products is to take better advantage of the temporal information in the satellite data using deep learning approaches. In this study, the latest version (V6) of the FAPAR product with a 250 m resolution was generated from Moderate Resolution Imaging Spectroradiometer (MODIS) surface reflectance data and other information, as part of the Global LAnd Surface Satellite (GLASS) product suite. In addition, it was aggregated to multiple coarser resolutions (up to 0.25∘ and monthly). Three existing global FAPAR products (MODIS Collection 6; GLASS V5; and PRoject for On-Board Autonomy–Vegetation, PROBA-V, V1) were used to generate the time-series training samples, which were used to develop a bidirectional long short-term memory (Bi-LSTM) model. Direct validation using high-resolution FAPAR maps from the Validation of Land European Remote sensing Instrument (VALERI) and ImagineS networks revealed that the GLASS V6 FAPAR product has a higher accuracy than PROBA-V, MODIS, and GLASS V5, with an R2 value of 0.80 and root-mean-square errors (RMSEs) of 0.10–0.11 at the 250 m, 500 m, and 3 km scales, and a higher percentage (72 %) of retrievals for meeting the accuracy requirement of 0.1. Global spatial evaluation and temporal comparison at the AmeriFlux and National Ecological Observatory Network (NEON) sites revealed that the GLASS V6 FAPAR has a greater spatiotemporal continuity and reflects the variations in the vegetation better than the GLASS V5 FAPAR. The higher quality of the GLASS V6 FAPAR is attributed to the ability of the Bi-LSTM model, which involves high-quality training samples and combines the strengths of the existing FAPAR products, as well as the temporal and spectral information from the MODIS surface reflectance data and other information. The 250 m 8 d GLASS V6 FAPAR product for 2020 is freely available at https://doi.org/10.5281/zenodo.6405564 and https://doi.org/10.5281/zenodo.6430925 (Ma, 2022a, b) as well as at the University of Maryland for 2000–2021 (http://glass.umd.edu/FAPAR/MODIS/250m, last access 1 November 2022).

Congenital anomalies associated with oil and gas development and resource extraction: a population-based retrospective cohort study in Texas.

Oil and gas extraction-related activities produce air and water pollution that contains known and suspected teratogens. To date, health impacts of in utero exposure to these activities is largely unknown. We investigated associations between in utero exposure to oil and gas extraction activity in Texas, one of the highest producers of oil and gas, and congenital anomalies. We created a population-based birth cohort between 1999 and 2009 with full maternal address at delivery and linked to the statewide congenital anomaly surveillance system (n = 2,234,138 births, 86,315 cases). We examined extraction-related exposures using tertiles of inverse distance-squared weighting within 5 km for drilling site count, gas production, oil production, and produced water. In adjusted logistic regression models, we calculated odds of any congenital anomaly and 10 specific organ sites using two comparison groups: 1) 5 km of future drilling sites that are not yet operating (a priori main models), and 2) 5-10 km of an active well. Using the temporal comparison group, we find increased odds of any congenital anomaly in the highest tertile exposure group for site count (OR: 1.25; 95% CI: 1.21, 1.30), oil production (OR: 1.08; 95% CI: 1.04, 1.12), gas production (1.20; 95% CI: 1.17, 1.23), and produced water (OR: 1.17; 95% CI: 1.14, 1.20). However, associations did not follow a consistent exposure-response pattern across tertiles. Associations are highly attenuated, but still increased, with the spatial comparison group in the highest tertile exposure group. Cardiac and circulatory defects are strongly and consistently associated with all exposure metrics. Increased odds of congenital anomalies, particularly cardiac and circulatory defects, were associated with exposures related to oil and gas extraction in this large population-based study. Future research is needed to confirm findings, examine specific exposure pathways, and identify potential avenues to reduce exposures among local populations. About 5% of the U.S. population (~17.6 million people) resides within 1.6 km of an active oil or gas extraction site, yet the influence of this industry on population health is not fully understood. In this analysis, we examined associations between oil and gas extraction-related exposures and congenital anomalies by organ site using birth certificate and congenital anomaly surveillance data in Texas (1999-2009). Increased odds of congenital anomalies, particularly cardiac and circulatory defects, were associated with exposures related to oil and gas extraction in this large population-based study. Future research is needed to confirm these findings.

Gluten-Free Products: Do We Need to Update Our Knowledge?

The gluten-free (GF) food market has been growing exponentially in recent years. However, GF products could contribute to imbalanced diets. The main objective of the present work was to perform a temporal nutritional comparison of GF foods over the last nine years. At the same time, the nutritional compositions of 104 GF products currently marketed in Spain were assessed and compared with their gluten-containing counterparts. Diets including GF products and the equivalent diets with homologous products with gluten were compared as well, the subjects being 25 adult celiac patients. A comparison of GF products (GFPs) in 2013 and 2022 showed nutritional differences in the groups of cookies, breakfast cereals, doughs/puff pastries/pizzas, and breads. The pasta group stands out from the rest due to an important decrease in energy, protein, simple carbohydrates, saturated lipids, dietary fiber, and salt. Comparing GF and gluten-containing homologous products in 2022, the major differences were found in protein and salt. Accordingly, GFPs lead to a diet lower in protein and higher in carbohydrates. Despite improvements in the formulation of GF products in recent years, their macronutrient profile maintains marked variation, and they cannot be considered nutritionally equivalent to their gluten-containing counterparts.

Limited movement of an avian hybrid zone in relation to regional variation in magnitude of climate change.

Studies of natural hybrid zones can provide documentation of range shifts in response to climate change and identify loci important to reproductive isolation. Using a temporal (36-38 years) comparison of the black-capped (Poecile atricapillus) and Carolina (P. carolinensis) chickadee hybrid zone, we investigated movement of the western portion of the zone (western Missouri) and assessed whether loci and pathways underpinning reproductive isolation were similar to those in the eastern portion of the hybrid zone. Using 92 birds sampled along the hybrid zone transect in 2016 and 68 birds sampled between 1978 and 1980, we generated 11,669 SNPs via ddRADseq. These SNPs were used to assess movement of the hybrid zone through time and to evaluate variation in introgression among loci. We demonstrate that the interface has moved ~5km to the northwest over the last 36-38 years, that is, at only one-fifth the rate at which the eastern portion (e.g., Pennsylvania, Ohio) of the hybrid zone has moved. Temperature trends over the last 38 years reveal that eastern areas have warmed 50% more than western areas in terms of annual mean temperature, possibly providing an explanation for the slower movement of the hybrid zone in Missouri. Our results suggest hybrid zone movement in broadly distributed species, such as chickadees, will vary between areas in response to local differences in the impacts of climate change.

Grazer gastropods as alternative species for monitoring butyltins contamination in harbors

Butyltin contamination was monitored in seven Tunisian harbors using soft tissue of three grazer gastropods (the Mediterranean limpet Patella caerulea, the turbinate monodont Phorcus turbinatus and the false-limpet Siphonaria pectinata), as well as sediments from the rocky substratum. The results revealed that butyltins (BuTs) were still present in the study sites three years after the Tunisian authorities banned their use. Tributyltin (TBT) concentrations in the substratum ranged from 1.5 to 5.7 ngSn/g dw (dry weight), dibutyltin (DBT) from 2.5 to 8.3, and monobutyltin (MBT) from 6.0 to 15.7. Higher concentrations were found in gastropods, ranging from 1.2 to 6.75 ngSn/g dw for TBT, 2.6 to 42.7 ngSn/g for DBT and 2.4 to 78.5 ngSn/g dw for MBT. The species P. caerulea and P. turbinatus accumulated TBT within the same range and at a higher level than S. pectinata, making them more appropriate for monitoring organotin contamination. Furthermore, DBT and MBT accumulated markedly in P. caerulea, up to 5–8 times the concentration recorded in the other two gastropods, suggesting further utility of this species as a good bioaccumulator of BuTs. Among the seven harbors studied, Zarzouna was the most contaminated whereas Zarat was the least polluted. The contamination is directly related to vessel traffic and shipyard activity at the studied harbors. The temporal comparison with previous studies shows that BuTs contamination is decreasing and that Tunisia's prohibition of TBT is effective in terms of environmental recovery.

Compared to what? Effects of social and temporal comparison standards of feedback in an e-learning context

Performance evaluation is based on comparison standards. Results can either be contrasted to former results (temporal comparison) or results of others (social comparison). Existing literature analyzed potential effects of teachers’ stable preferences for comparison standards on students’ learning outcomes. The present experiments investigated effects of learners’ own preferences for comparison standards on learning persistence and performance. Based on research and findings on person-environment-fit, we postulated a fit hypothesis for learners’ preferences for comparison standards and framed feedback on learning persistence and performance. We tested our hypotheses in two separate experiments (N = 203 and N = 132) using different manipulations of framed feedback (temporal vs. social) in an e-learning environment, thus establishing high ecological validity and allowing objective data to be collected. We found first evidence for beneficial effects of receiving framed feedback towards own preferences on learning persistence and performance in our experiments. We tested fluency as a possible underlying psychological mechanism in our second experiment and observed a larger fit effect on learning persistence under disfluency. The results are discussed regarding a new theoretical perspective on the concept of preferences for comparison standards as well as opportunities for adaptive e-learning.

Estimation of Vegetation Leaf-Area-Index Dynamics from Multiple Satellite Products through Deep-Learning Method

A high-quality leaf-area index (LAI) is important for land surface process modeling and vegetation growth monitoring. Although multiple satellite LAI products have been generated, they usually show spatio-temporal discontinuities and are sometimes inconsistent with vegetation growth patterns. A deep-learning model was proposed to retrieve time-series LAIs from multiple satellite data in this paper. The fusion of three global LAI products (i.e., VIIRS, GLASS, and MODIS LAI) was first carried out through a double logistic function (DLF). Then, the DLF LAI, together with MODIS reflectance (MOD09A1) data, served as the training samples of the deep-learning long short-term memory (LSTM) model for the sequential LAI estimations. In addition, the LSTM models trained by a single LAI product were considered as indirect references for the further evaluation of our proposed approach. The validation results showed that our proposed LSTMfusion LAI provided the best performance (R2 = 0.83, RMSE = 0.82) when compared to LSTMGLASS (R2 = 0.79, RMSE = 0.93), LSTMMODIS (R2 = 0.78, RMSE = 1.25), LSTMVIIRS (R2 = 0.70, RMSE = 0.94), GLASS (R2 = 0.68, RMSE = 1.05), MODIS (R2 = 0.26, RMSE = 1.75), VIIRS (R2 = 0.44, RMSE = 1.37) and DLF LAI (R2 = 0.67, RMSE = 0.98). A temporal comparison among LSTMfusion and three LAI products demonstrated that the LSTMfusion model efficiently generated a time-series LAI that was smoother and more continuous than the VIIRS and MODIS LAIs. At the crop peak growth stage, the LSTMfusion LAI values were closer to the reference maps than the GLASS LAI. Furthermore, our proposed method was proved to be effective and robust in maintaining the spatio-temporal continuity of the LAI when noisy reflectance data were used as the LSTM input. These findings highlighted that the DLF method helped to enhance the quality of the original satellite products, and the LSTM model trained by the coupled satellite products can provide reliable and robust estimations of the time-series LAI.

Interpersonal comparison among caregivers of children with asthma

Objective: We examined the extent to which caregivers of children with asthma used interpersonal comparisons—a novel comparison process that parallels social comparison and temporal comparison—to form judgments about their child. Methods & Measures: Using semi-structured interviews adapted from the McGill Illness Narrative Interview, we examined the interpersonal comparisons that caregivers of a child with asthma (n = 41) made regarding their child. Results: Interpersonal comparisons influenced caregiver thoughts, feelings, and behavior. They helped caregivers distinguish asthma from other breathing problems, evaluate the severity of the asthma, and understand their child’s experience. However, they also created uncertainty by highlighting the complex, unpredictable nature of asthma. Interpersonal comparisons were a source of gratitude and hope, but also worry and frustration. Finally, interpersonal comparisons influenced caregivers’ decisions and actions, resulting in decisions that aligned with and, at times, ran counter to biomedical models of asthma care. In some instances, caregivers used interpersonal comparisons to motivate their child’s behavior. Conclusion: The interpersonal comparisons served as a source of information for caregivers trying to understand and manage their child’s asthma. Investigating these comparisons also expands how we think about other comparison theories.