Discrepancies between Objectively Assessed and Self-Reported Daily Social Media Time in the Age of Platform Swinging

Building on Junco’s (2013) study examining the accuracy of self-reported computer-specific time on Facebook, the current study investigates the accuracy of self-reported time on multiple social media (SM) platforms across multiple electronic devices and evaluates whether reporting accuracy is systematically associated with participant sex, individual SM platform in question, or total number of SM platforms used. Participants were 320 college students who downloaded software on their computers, tablets, and smartphones to track their active use of Facebook, Twitter, Instagram, and Snapchat over a 2-week surveillance period and then self-reported their daily average minutes on each platform immediately after. Larger proportions of students over- estimated than under-estimated their use, with the largest overestimations found on Snapchat and Instagram. Relative to males, females logged significantly more SM time and were less accurate in reporting. Overall, the likelihood of substantial inaccuracies in reporting total SM time and time on most individual platforms increased with each additional SM platform participants reported using. Findings from this study cast further doubt on the validity of self-report SM measures in the present SM landscape and underscore the need for either data analytic strategies to adjust for systematic reporting biases or a shift towards objective time-tracking methods.

The End of Resilience? Managing Vulnerability Through Temporal Resourcing and Resisting

We induce a first-person conceptualization of entrepreneurial resilience. Our seven-year, two-study ethnography shows that entrepreneurs enact resilience as a four-step process of managing vulnerability: they richly experience episodes of adversity, self-monitor across episodes, reassess personal thresholds and reconcile challenges with coping skills. Entrepreneurs manage vulnerability by (1) modifying ( stretching and shrinking) objective time and (2) changing their subjective experience of time as working with or against the clock through temporal resourcing or temporal resisting. We extend the theory and practice of entrepreneurial resilience by elaborating the interplay of objective and subjective time in managing vulnerability in recurrent and unprecedented crises.

Memory in Terms of Logic and Semiotics

The phenomenon of memory is considered as a component implicitly present in the process of information communication. A short typology of memory kinds that form a referential field around so-called semantic memory is given. Through the approaches of Yu. Lotman and R. Jacobson, the classical notion of time is considered through the relationship "Past-Present-Future", which is closely related to the problems of memory. The focus is on how could the memory be considered within logic and by means of logic? As one of the ways of solving the point, to apply the tools of tense logic to the problem through the analysis of the works of Anatoly Ishmuratov (1946–2017), a prominent Ukrainian logician, is proposed. The classifications of the tenses by O. Jespersen, H. Reichenbach, W. Bull are considered. The subjective and objective axes of orientation, which form the basis of calendars, charts and scales, as fragments of time, are analyzed. According to Ishmuratov, these instruments – schemes, diagrams, etc. can be considered languages. The possibility of language objectification of meaning determines the relationship of logical inference, and thus the structuring of semantic areas, which are memories, by means the language of logic and in accordance with its structures. Through the study of logical and cognitive conditions of action, A. Ishmuratov continued to develop ideas of tense logic and their application to explain the psychological perception of objective time. He construed a scheme of semantic connections of memory as a mental act that reproduces the life path of the individual; he distinguished between memories and "pseudo-memories", which together influence the reassessment of past events, shape the individual`s experience and his ability to construe alternatives to the future and reasoning about it. A special place in A. Ishmuratov's research is occupied by his explication of temporal three-valued logic and application of temporal modalities to the analysis of so-called transient states. Further study of such approaches could help to make sense of rational explication of memory, testimonies, reminiscences of past events and give interesting results.

Zur Poetik und Interpretation des offenen Schlusses

This article reviews the long historical process and changing significance of open endings in music from Haydn's mid-period symphonies of the 1760s to Helmut Lachenmann. Taking two case studies by Alban Berg (Lyric Suite, Wozzeck) as its starting point, the article demonstrates that open endings are often linked to ideas of cyclicity and the permanence of "objective time" as well as to a critique of social or political situations. Therefore, open endings challenge the aesthetic difference between the musical art-work and everyday experience, a tendency, that can be traced back to the emergence of self-reflexivity in early 19th-century music and aesthetics and even to Haydn's earlier listener-responsive musical writing. In later 19th-century and early 20th-century music, large-scale forms increasingly posed the problem of an inability to achieve closure. Further key examples elaborate the tendency of open endings toward musical self-reflexivity and the appearance of the composer-persona at the end of a cyclic work: Schubert's Der Leiermann from Winterreise, Schumann's Der Dichter spricht from Kinderszenen, Schoenberg's concluding piece from Six little Piano Pieces op. 19 as well as Lachenmann's "music with images" The Little Match-Girl. Finally, Schumann's and Schönberg's closing pieces are considered from the perspective of performance history and analysis, highlighting th performer's substantial impact on creating (or limiting) the impression of "openness".

Genre Determining Prediction: Non-Standard TAM Marking in Football Language

German and French football language display tense-aspect-mood (TAM) forms which differ from the TAM use in other genres. In German football talk, the present indicative may replace the pluperfect subjunctive. In French reports of football matches, the imperfective past may occur instead of a perfective past tense-aspect form. We argue that the two phenomena share a functional core and are licensed in the same way, which is a direct result of the genre they occur in. More precisely, football match reports adhere to a precise script and specific events are temporally determined in terms of objective time. This allows speakers to exploit a secondary function of TAM forms, namely, they shift the temporal perspective. We argue that it is on the grounds of the genre that comprehenders predict the deviating forms and are also able to decode them. In various corpus studies, we explore the functioning of these phenomena in order to gain insights into their distribution, grammaticalization and their functioning in discourse. Relevant factors are Aktionsart properties, rhetorical relations and their interaction with other TAM forms. This allows us to discuss coping mechanisms on the part of the comprehender. We broaden our understanding of the phenomena, which have only been partly covered for French and up to now seem to have been ignored in German.

Neural Experience of Conscious Time

“Pure perception and pure memory constantly intermingle” Henri Bergson, 1908. One can consider that “Time” and “memory” are related experiential facets of mentality. Without memory, there is no Time. To clarify, we distinguish between the physisist’s objective time (pTime), which has no emotive quality or memory component, and the subjective conscious time (cTime), which engages both emotions and memory. Our tripartite mechanism of a neural memory involves neurons interacting with their surrounding extracellular matrix (nECM). Incoming perceptions are chemically encoded in the nECM as metal-centered cognitive units of information (cuinfo), wherein NTs serve as molecular encoders of emotive states In the context of the tripartite mechanism (Marx & Gilon, 2012-2020), we consider two possible modes whereby the temporal sequence of events (i.e. cTime) could be recalled by the sensing neural net. Chemical (allosteric) sensing of cuinfo in the nECM by neural receptors (i.e. GPCR, integrins, etc.) which establish fleeting contact with the nECM as they diffuse along the neural membrane. Effectively, this is a lateral decoding process. Electrodynamic sensing of cuinfo vertically displaced from the neural surface. New nECM components and cuinfo are constantly being formed, like coral growths, extending from the neural surface. The individual neuron senses and decodes the distal cuinfo in the surrounding nECM (like long-distance radar detection). Neural sensing is consolidated and transformed by the net into comprehensive memory. These speculations suggest experimental tests to measure the interactions of the tripartite components, to examine the electro-chemical aspects of neural encoding of memory perceived as cTime.

Towards a more objective time standard in competitive rowing

Rowing needs a standardized Gold Medal Standard (GMS) to clearly compare performance across boat classes in competition. Here, we report a method to factor out environmental effects, developing a fairer GMS for individual rowing events. We used results from World Rowing Championships and Olympics Games (2005–2016) to calculate the difference between the fastest winning time of the day and other event winning times on the same day. From this, we calculated a prognostic GMS time for each event via repeated k-fold cross-validation linear regression. Then, we compared these values with the 10-year average winning time and the World Best Time (WBT). We repeated this process to develop prognostic podium standard (PS) times. The prognostic GMS times (RMSE = 9.47; R 2 = 0.875) were universally slower than the WBT (current GMS) by 6.2 s on average but faster than the 10-year average by 12.3 s. The prognostic PS times (RMSE = 10.5; R 2 = 897) were also slower than the WBT but faster than the 10-year average, by 12.2 and 6.3 s respectively. Our time-difference prediction model based on historical data generates non-outlier prognostic times. With the utilization of relative time difference, this approach promises a selection standard independent of environmental conditions, easily applicable across different sports.

Resistance and Counter-Zones of Indistinction

Agamben's concept, zone of indistinction, defines politically constructed, ambiguous time-space settings that are built by the sovereign, declaring the state of emergency, transforming the subjects into homo sacer. In this sense, a zone of indistinction is the space reproducing dominance and hierarchy. However, Agamben's analysis developed around this concept skips the reality of resistance zones which can be constructed by micro agents suspending the quasi-objective time-and-space settings organized in everyday-life practices. From this point of critical view, the article proposes a new concept, counter-zones of indistinction, which follows Agamben's analytical agenda from the side of non-dominant power relations. Thus, the article explains counter-zones of indistinction while it also analyzes the differences among counter-public spaces, heterotopias to make clear the conceptual boundaries. Hence, the article aims to contribute to Agamben's well-known study on the zone of indistinction.

Efficient meta-heuristics for the multi-objective time-dependent orienteering problem

In this paper, the Multi-Objective Time-Dependent Orienteering Problem (MOTDOP) is investigated. Time-dependent travel time and multiple preferences are two of the most important factors in practice, and have been handled separately in previous work. However, no attempts have been made so far to consider these two factors together. Handling both multiple preferences and time-dependent travel time simultaneously poses a challenging optimization task in this NP-hard problem. In this study, two meta-heuristic methods are proposed for solving MOTDOP: a Multi-Objective Memetic Algorithm (MOMA) and a Multi-objective Ant Colony System (MACS). Two sets of benchmark instances were generated to evaluate the proposed algorithms. The experimental studies show that both MOMA and MACS managed to find better solutions than an existing multi-objective evolutionary algorithm (FMOEA). Additionally, MOMA achieved better performance than MACS in a shorter time, and is less sensitive to the parameter setting. Given that MACS inherits promising features of P-ACO, which is a state-of-the-art algorithm for multi-objective orienteering problem, the advantage of MOMA over MACS and FMOEA demonstrates the efficacy of adopting the memetic algorithm framework to solve MOTDOP. Graphical Abstract https://ars.els-cdn.com/content/image/1-s2.0-S0377221716301990-fx1_lrg.jpg © This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/

Efficient meta-heuristics for the multi-objective time-dependent orienteering problem

In this paper, the Multi-Objective Time-Dependent Orienteering Problem (MOTDOP) is investigated. Time-dependent travel time and multiple preferences are two of the most important factors in practice, and have been handled separately in previous work. However, no attempts have been made so far to consider these two factors together. Handling both multiple preferences and time-dependent travel time simultaneously poses a challenging optimization task in this NP-hard problem. In this study, two meta-heuristic methods are proposed for solving MOTDOP: a Multi-Objective Memetic Algorithm (MOMA) and a Multi-objective Ant Colony System (MACS). Two sets of benchmark instances were generated to evaluate the proposed algorithms. The experimental studies show that both MOMA and MACS managed to find better solutions than an existing multi-objective evolutionary algorithm (FMOEA). Additionally, MOMA achieved better performance than MACS in a shorter time, and is less sensitive to the parameter setting. Given that MACS inherits promising features of P-ACO, which is a state-of-the-art algorithm for multi-objective orienteering problem, the advantage of MOMA over MACS and FMOEA demonstrates the efficacy of adopting the memetic algorithm framework to solve MOTDOP. Graphical Abstract https://ars.els-cdn.com/content/image/1-s2.0-S0377221716301990-fx1_lrg.jpg © This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/