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Time Matters: What Factors Affect Submission-To-Acceptance Time in the Journal of Communication?
No full textThis article analyses the possible factors that can affect the time range in two scenarios of the publication process, namely the number of days between submitting a manuscript and its acceptance (n = 42) and the number of days between submitting a research paper and it being published (n = 101) in the Journal of Communication. Regression analyses revealed that some factors significantly affect the time period between the submission and the acceptance of papers. The most important finding is that the number of articles previously published in the Journal of Communication by the most prestigious authors significantly reduces the time between submission and the “decision accepted” response
How to measure consumer’s inconsistency in sensory testing?
No full textConsumer sensory testing is the basis for determining directions of product development in the food industry. However, while compliance assessment by trained and expert assessors is well developed, few information is available on testing consumer consistency. Therefore, we provide a statistical framework to rank assessors and attributes according to the level of inconsistency, as well as to identify inconsistent assessors, based on Kendall rank correlation coefficients. The detection of (in)consistency requires evaluations on two connected scales. The suggested approach is illustrated by data from sensory tests of biscuits enriched with three pollens at different levels. 100 consumers evaluated the samples on two different scales (nine category monotonic ascending hedonic response scale, five-category just about right (JAR) intensity scale). The 88 consistent assessors are found using a wider range of both the liking scale and JAR scale than the 12 inconsistent assessors whose evaluations do not have a significantly negative rank correlation. Future consumer tests are recommended to include multiple scales. The proposed framework aims to identify and even filter out the potentially biasing inconsistent evaluations. Questions on attributes leading to highly inconsistent responses should be reconsidered in future sensory tests on the same food product
Undergraduate Learning Gains and Learning Efficiency in a Focused Open Education Resource
No full textThe high cost of commercial textbooks in higher education creates barriers to equitable access to learning materials and negatively impacts student performance. Open educational resources (OER) offer a cost-effective alternative, but their impact on student learning remains a critical question. This study directly compared student outcomes between OER and commercial textbooks in a controlled reciprocal design. Forty undergraduate participants completed reading tasks and knowledge assessments using both textbook types, focusing on topics in DNA structure and function and population ecology. Results showed no significant differences in learning gains between OER and commercial textbooks, consistent with prior research. However, participants spent significantly less time on task when using the shorter, learning objective-aligned OER readings, particularly for jargon-heavy DNA content. These findings highlight the potential of OER to reduce cognitive load and improve efficiency without compromising learning outcomes. Future research should explore the role of textbook alignment, length, and student preparation strategies in optimizing learning with OER, particularly in flipped classroom contexts. This study supports OER adoption as a cost-saving measure that maintains academic integrity while enhancing accessibility and efficiency
Integrating solar plants into the European power grid : What is the optimal capacity combination of PV and battery storage?
No full textThe European Union's FIT-for-55 and RePower EU policies set forth highly ambitious targets for the deployment of variable renewables. As a result, there will be a significant increase in PV capacity in the short term up to 2030, which will require greater power system flexibility. One effective solution is the use of battery storage. Given the exponential growth in PV generation over the past years and its expected continued growth, this article examines the optimal level of battery storage required to balance this growth in a cost-efficient way. The Total System Cost indicator is used to measure efficiency in the power sector, including both investment and generation costs in the European power system. The assessment demonstrates that there is a cost-optimal capacity combination of PV and battery storage at the European level. Compared to the EU's 2030 target of 383–592 GW of solar capacity, our results show that in a range of 530–880 GW of PV combined with battery storage equivalent to 2.5–7.5% of the total intermittent capacity represents the cost optimal range in the system. The results suggest, that moving toward higher deployment of PV (above 880 GW), the total cost of the system increases sharply even with applying higher level of battery storage. The results also suggest that targeting lower PV deployment ambition is not cost optimal either. Our findings indicate that batteries can play a significant role in reducing the curtailment of solar energy and can also mitigate the strong cannibalisation effect of PV installations
Pathways to green food purchases : exploring the nexus of attitudes, habits and lifestyles using SEM and NCA
No full textPurpose: Green food consumption offers a promising avenue for reducing the negative environmental impacts of the food sector. However, the challenge lies in reshaping food-related behaviors that are deeply embedded in habits and lifestyles. This study explored how attitudes, purchasing habits and food-related lifestyle characteristics influence the intention to purchase green food products.
Design/methodology/approach: This study utilized a representative survey of 475 residents from Budapest, Hungary. Data were gathered through a structured questionnaire adapted from established literature. The analysis was conducted using partial least squares structural equation modeling (PLS-SEM) and necessary condition analysis (NCA).
Findings: The findings of this study revealed that attitudes, green habits and food-related lifestyle characteristics positively influence green food purchase intentions. Among these factors, green habits emerged as the most influential, while food innovation had the least impact. Furthermore, the necessary condition analysis (NCA) identified attitude as the sole necessary condition, albeit with a low-to-moderate effect size.
Originality/value: These findings hold significant implications for policymakers and managers, who can leverage this information to foster green food purchase intentions. By gaining deeper insights into the characteristics of their target markets and employing tailored communication strategies, they can more effectively promote sustainable consumption behaviors
Win three-sets sports: Game patterns, gender comparisons, and comeback analysis : a commentary
No full textGoldschmied et al. (2025) have conducted a longitudinal survey of three sports where the winner must win three sets to win a match. This note investigates their results in a simple statistical model
Európa az új multipoláris rendszerben
No full textJelenleg a világ két nagy erőközponttal rendelkezik. Döntő kérdés, hogy Oroszország melyikhez csatlakozik. Ez a német-orosz kapcsolatokat akadályozó Brzezinski doktrína változtatására kényszerít. Európa – túl politikai széttagoltságán – nem tud egy egységes harmadik erőközpont szerepében fellépni, mert két irányú függőségben szenved döntően a reál-gazdaságában: technológiailag az USA-tól, technikai és ritkafém-import terén Kínától
Az EROI és az olajhomok-bányászat jövedelmezősége közötti kapcsolat becslése, 1997–2016
No full text(Charles Guay-Boutet, Mathieu Dufour: Estimating the relationship between EROI and profitability of oil sands mining, 1997–2016) Eredetileg megjelent: Ecological Economics 217 (2024) 10807
European Cooperation: Germany and Hungary Searching for Solutions to the Shortage of Resources and Talent
No full textHungary used to be viewed as one of the most promising economies in eastern Europe, but it has since become a cause for concern
Projects with uncertain requirements and deadlines
Get PDFI analyze a dynamic moral hazard problem in teams with imperfect monitoring in continuous time. In the model, players work together to achieve a breakthrough in a project while facing a deadline. The target effort needed to achieve a breakthrough is unknown, but the players have a common prior about its distribution. I characterize the equilibrium and the effort path that maximizes the team’s welfare for general distributions of this target effort and show that three effects are at work: free-riding (i.e., working less), last-minute rush (i.e., working later), and a past-effort effect (i.e., working more if others worked more in the past). This past-effort effect increases or decreases the amount of work players put into the project, depending on the type of project faced