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Background: We aimed to investigate the potential effects of a 4-week motor–cognitive dual-task training on cognitive and motor function as well as exercise motivation in young, healthy, and active adults.
Methods: A total of 26 participants (age 25 ± 2 years; 10 women) were randomly allocated to either the intervention group or a control group. The intervention group performed a motor–cognitive training (3×/week), while the participants of the control group received no intervention. Before and after the intervention period of 4 weeks, all participants underwent cognitive (d2-test, Trail Making Test) and motor (lower-body choice reaction test and time to stabilization test) assessments. Following each of the 12 workouts, self-reported assessments (rating of perceived exertion, enjoyment and pleasant anticipation of the next training session) were done. Analyses of covariances and 95% confidence intervals plotting for between group and time effects were performed.
Results: Data from 24 participants were analysed. No pre- to post-intervention improvement nor a between-group difference regarding motor outcomes (choice-reaction: F = 0.5; time to stabilization test: F = 0.7; p > 0.05) occurred. No significant training-induced changes were found in the cognitive tests (D2: F = 0.02; Trail Making Test A: F = 0.24; Trail Making Test B: F = 0.002; p > 0.05). Both enjoyment and anticipation of the next workout were rated as high.
Discussion: The neuro-motor training appears to have no significant effects on motor and cognitive function in healthy, young and physically active adults. This might be explained in part by the participants’ very high motor and cognitive abilities, the comparably low training intensity or the programme duration. The high degree of exercise enjoyment, however, may qualify the training as a facilitator to initiate and maintain regular physical activity. The moderate to vigorous intensity levels further point towards potential health-enhancing cardiorespiratory effects.
During the drafting process from the 1920s to 1940s, the Weimar Constitution (WRV) played a decisive role in shaping Chinese social(-ist) con- stitutions, especially the part related to the social- economic issue. Through the lens of cultural trans- lation, this paper seeks to explain how the WRV was adapted, reinterpreted, and recontextualized throughout several rounds of constitution making in China. By focusing on the roles played by the translators, legislators, and interpreters, this paper discusses how the social rights created by the WRV were translated into the fundamental policy of the 1947 Constitution of the Republic of China. More- over, regarding »policy« as the legal instrument for regulating the social-economic life, and even broader fields, it triggers the modern transforma- tion of Chinese meritocracy and reinforces the national legal tradition depicted in its modern form. To some extent, this case study on cultural translation of constitutional law discloses the mechanism, both temporarily and spatially, for the intercultural communication of the normative information.
Background: Although anterior cruciate ligament (ACL) tear-prevention programs may be effective in the (secondary) prevention of a subsequent ACL injury, little is known, yet, on their effectiveness and feasibility. This study assesses the effects and implementation capacity of a secondary preventive motor-control training (the Stop-X program) after ACL reconstruction.
Methods and design: A multicenter, single-blind, randomized controlled, prospective, superiority, two-arm design is adopted. Subsequent patients (18–35 years) with primary arthroscopic unilateral ACL reconstruction with autologous hamstring graft are enrolled. Postoperative guideline rehabilitation plus Classic follow-up treatment and guideline rehabilitation plus the Stop-X intervention will be compared. The onset of the Stop-X program as part of the postoperative follow-up treatment is individualized and function based. The participants must be released for the training components. The endpoint is the unrestricted return to sport (RTS) decision. Before (where applicable) reconstruction and after the clearance for the intervention (aimed at 4–8 months post surgery) until the unrestricted RTS decision (but at least until 12 months post surgery), all outcomes will be assessed once a month. Each participant is consequently measured at least five times to a maximum of 12 times. Twelve, 18 and 24 months after the surgery, follow-up-measurements and recurrence monitoring will follow. The primary outcome assessement (normalized knee-separation distance at the Drop Jump Screening Test (DJST)) is followed by the functional secondary outcomes assessements. The latter consist of quality assessments during simple (combined) balance side, balance front and single-leg hops for distance. All hop/jump tests are self-administered and filmed from the frontal view (3-m distance). All videos are transferred using safe big content transfer and subsequently (and blinded) expertly video-rated. Secondary outcomes are questionnaires on patient-reported knee function, kinesiophobia, RTS after ACL injury and training/therapy volume (frequency – intensity – type and time). All questionnaires are completed online using the participants’ pseudonym only.
Group allocation is executed randomly. The training intervention (Stop-X arm) consists of self-administered home-based exercises. The exercises are step-wise graduated and follow wound healing and functional restoration criteria. The training frequency for both arms is scheduled to be three times per week, each time for a 30 min duration. The program follows current (secondary) prevention guidelines.
Repeated measurements gain-score analyses using analyses of (co-)variance are performed for all outcomes.
Trial registration: German Clinical Trials Register, identification number DRKS00015313. Registered on 1 October 2018.
You wait ages for a bus, the saying goes, and then two (or three) come along at once. A similar feeling set in when Oxford University Press published two volumes on legal history in its Oxford Handbooks series within the space of four weeks last year. They are a welcome addition to the prestigious and well-established series that now boasts hundreds of volumes, including around 50 on history and over three dozen on law. The latter do not only cover established sub-disciplines of legal studies, such as jurisprudence and philosophy of law (2002), comparative law (2006, 2nd ed. 2019), international trade law (2009), the law of the sea (2015), European Union law (2015), criminal law (2014) and intellectual property (2018), but also more recent and emerging fields, including international environmental law (2007), empirical legal research (2010), behavioural economics and law (2014), international adjudication (2013), international climate change law (2016) and law and economics (3 vols., 2017). The Handbooks have become increasingly specialised with titles focusing on narrow topics such as individual national constitutions (USA, 2015; India, 2016; Canada, 2017) and important, but nevertheless discrete legal issues, for example, US health law (2017) and the sources of international law (2017). The obvious question was why, nearly two decades after the launch of the series, there was such a thing as an Oxford Handbook of American Sports Law (2018) but still no volume on the history of law. The absence of such a title was all the more striking in light of the publication of books in the series dealing with individual fields of legal history, such as the Oxford Handbook of the History of International Law (2012), the Oxford Handbook of Roman Law and Society (2016), the Oxford Handbook of Carl Schmitt (2017) and the Oxford Handbook of English Law and Literature, 1500–1700 (2017). ...
Den Auftakt zum Oxford Handbook of European Legal History machen fünf Beiträge, die unter der Überschrift "Approaches to European Legal History: Historiography and Methods" versammelt sind. Um sie in Beziehung zu setzen, habe ich im Folgenden drei Fragenkomplexe formuliert, die die gemeinsamen Aspekte dieses Quintetts abbilden. Die Beiträge werden in der Reihenfolge ihres Auftretens im Handbuch referiert. Zur Vermeidung von Redundanzen haben die Nachgeordneten im Wiederholungsfalle der Argumente das Nachsehen und werden "nur" als Verweis genannt.
Light-matter interaction in the strong coupling regime is of profound interest for fundamental quantum optics, information processing and the realization of ultrahigh-resolution sensors. Here, we report a new way to realize strong light-matter interaction, by coupling metamaterial plasmonic "quasi-particles" with photons in a photonic cavity, in the terahertz frequency range. The resultant cavity polaritons exhibit a splitting which can reach the ultra-strong coupling regime, even with the comparatively low density of quasi-particles, and inherit the high Q-factor of the cavity despite the relatively broad resonances of the Swiss-cross and split-ring-resonator metamaterials used. We also demonstrate nonlocal collective interaction of spatially separated metamaterial layers mediated by the cavity photons. By applying the quantum electrodynamic formalism to the density dependence of the polariton splitting, we can deduce the intrinsic transition dipole moment for single-quantum excitation of the metamaterial quasi-particles, which is orders of magnitude larger than those of natural atoms. These findings are of interest for the investigation of fundamental strong-coupling phenomena, but also for applications such as ultra-low-threshold terahertz polariton lasing, voltage-controlled modulators and frequency filters, and ultra-sensitive chemical and biological sensing.
For reasons of curiosity, we perused the two recent Oxford handbooks on legal history looking for discussions of digital methods in legal history. One of the fundamental decisions to be made when organizing such a handbook is defining which methodological approaches deserve an article of their own and which ones are to be understood rather as cross-cutting themes to be discussed in the context of many articles dedicated to other things. In the case of digital methods in legal history, this decision seems to have been a tough one – at one point, you can find a curious reference to a "chapter on 'Legal History and Digital Humanities'" (OHBLH 354), but in the final publication there is no such text.
However, discussing digital methods in the context of other subjects has, in our opinion, the disadvantage that more systematic, methodological arguments cannot really be developed. Put more concretely, the most "substantial" contributions regarding digital methods are, for whatever reason, those on "The Intellectual History of Law" by Assaf Likhovski, on "Taking the Long View" by Paul D. Halliday, on "Quantitative Legal History" by Daniel Klerman, and on "Indian Law" by Mitra Sharafi, all of which are in the Oxford Handbook on Legal History. (Equally surprising, there is no mention of digital methods at all in Angela Fernandez’s "Legal History as The History of Legal Texts".) However, even these articles do not really "discuss" digital methods, rather they merely refer to them (and to some projects) as contributions of sorts to their respective fields of interest.
Thus, if you are looking for digital methods in those handbooks, you can hardly find more than some namedropping passages where things like "digital mapping […], network analysis […], text analysis" (OHBLH 845f.) are mentioned, together with references to example projects where they have been employed but without any explanation as to:
–why these methods are mentioned and not others,
–what they are doing, to which end and under what circumstances,
–what, possibly transformative, impact these methods have on the (respective sub-) field of legal history, and
–what a scholar considering to apply these methods should be aware of.
While the space for this is limited, the present Forum contribution tries to mitigate the scarcity of such discussions by presenting and discussing a few textual analyses that make use – for demonstration purposes – of digital methods. Some other methods of analysis, network analysis, and geo-mapping (among others), cannot be covered here, but we provide a link to an online bibliography where you can find them applied to legal history or a related domain, and discussed critically. A general discussion of digital perspectives beyond concrete methods of analysis concludes this contribution.
State-of-the-art climate models contain, to a significant degree, empirical components. In particular, subgrid-scale (SGS) parameterizations are usually highly tuned against observations or high-resolution model data. While this enables the models to minimize the error during hindcasts, it is not guaranteed that it yields a benefit for climate projections because of climate change. In this thesis the Fluctuation-Dissipation theorem (FDT) is used to update the statistics of the system in the presence of an external forcing. If the empirical parameters are tuned objectively to the data (i.e., they depend on the statistics of the data), then they might be updated with the FDT. This ansatz is tested within a framework of a semi-empirical model (SEM) based on the leading variance patterns of a quasigeostrophic three-layer model (QG3LM) and supplemented by a purely data-driven parameterization. We show that the FDT is able to successfully update the tuning parameters of the data-driven SGS closure, resulting in a systematic improvement in model performance in comparison to an untreated SEM. Ideally, SGS parameterizations should contain little to no tuning parameters. Thus, complementary to the FDT approach we investigate a stochastic SGS closure constrained by first principles that is calculated using the stochastic mode reduction (SMR). The SMR allows for an analytic derivation of the SGS closure from the model equations while requiring only minimal tuning. We successfully apply the SMR to the QG3LM and construct the reduced stochastic model (RSM). Furthermore, we show that the RSM is more robust against an external forcing than the SEM. Additionally, we find that, under appropriate conditions, the FDT is able to update the empirical parts of the RSM. Yet, only for the response in mean streamfunction the RSM provides useful results, while the response in covariance of the streamfunction is incorrect for most cases. Nevertheless, we obtain a remarkably accurate response in both moments for the RSM in an idealized setting. In combination with the results of the FDT study this indicates that the considered RSM is too low dimensional and encourages us to investigate the response of larger RSMs in the future.
Five decades of US, UK, German and Dutch music charts show that cultural processes are accelerating
(2019)
Analysing the timeline of US, UK, German and Dutch music charts, we find that the evolution of album lifetimes and of the size of weekly rank changes provide evidence for an acceleration of cultural processes. For most of the past five decades, number one albums needed more than a month to climb to the top, nowadays an album is in contrast top ranked either from the start, or not at all. Over the last three decades, the number of top-listed albums increased as a consequence from roughly a dozen per year, to about 40. The distribution of album lifetimes evolved during the last decades from a log-normal distribution to a power law, a profound change. Presenting an information–theoretical approach to human activities, we suggest that the fading relevance of personal time horizons may be causing this phenomenon. Furthermore, we find that sales and airplay- based charts differ statistically and that the inclusion of streaming affects chart diversity adversely. We point out in addition that opinion dynamics may accelerate not only in cultural domains, as found here, but also in other settings, in particular in politics, where it could have far reaching consequences.
The presence of moral theology and scholasticism in the recently published Oxford Handbook of Legal History and Oxford Handbook of European Legal History is very limited. The first volume aims to be iconoclastic. It explicitly does not seek to provide a kind of global historical account but instead presents some of the innovative methodological perspectives guiding current legal historical research. Thomas Duve, writing about the contribution of the School of Salamanca to the theorization of a certain framework of "indigenous rights" during the period of colonial domination, is thus the only contributor to this volume who mentions moral theology. In the Handbook of European Legal History, there are two articles on important scholastic contributions to legal history that also deal with the influence of Salamanca and related scholastic authors to equally wide fields of legal thinking. Wim Decock discusses authors of the second scholasticism in the context of the law of property and obligations (611–632), and David Ibbetson writes on natural law (566–582). In the following, I will focus on Ibbetson’s chapter, which only partially matches the ambitious intended aims of the volume editors (Pihlajamäki, Dubber, Godfrey): to "chart the landscape of contemporary research" and to show the global impact that European legal systems had "from the fifteenth century onwards". ...