Mobility in China, 2020: a tale of four phases

2020 was an unprecedented year, with rapid and drastic changes in human mobility due to the COVID-19 pandemic. To understand the variation in commuting patterns among the Chinese population across stable and unstable periods, we used nationwide mobility data from 318 million mobile phone users in China to examine the extreme fluctuations of population movements in 2020, ranging from the Lunar New Year travel season (chunyun), to the exceptional calm of COVID-19 lockdown, and then to the recovery period. We observed that cross-city movements, which increased substantially in chunyun and then dropped sharply during the lockdown, are primarily dependent on travel distance and the socio-economic development of cities. Following the Lunar New Year holiday, national mobility remained low until mid-February, and COVID-19 interventions delayed more than 72.89 million people returning to large cities. Mobility network analysis revealed clusters of highly connected cities, conforming to the social-economic division of urban agglomerations in China. While the mass migration back to large cities was delayed, smaller cities connected more densely to form new clusters. During the recovery period after travel restrictions were lifted, the netflows of over 55% city pairs reversed in direction compared to before the lockdown. These findings offer the most comprehensive picture of Chinese mobility at fine resolution across various scenarios in China and are of critical importance for decision making regarding future public-health-emergency response, transportation planning and regional economic development, among others.     

Performance agreements for clearer institutional profiles and better division of labour

Tertiary Education and Management - Performance agreements in higher education are seen as a promising steering tool in many countries, including Norway. The aims of the performance agreements in...     

Emergent energy

Modern Physics impresses us particularly with the truth of the old doctrine which teaches that there are realities existing apart from our sense-perceptions, and that there are problems and conflicts where these realities are of greater value for us than the richest treasures of the world of experience.     

Monitoring detaching murals in the convent of Müstair (Switzerland) by mirror micrometry

In a parallel study, it has been shown by comparison of successive TV-holography campaigns that murals in the convent of Müstair (Switzerland) have progressively detached from their substrate over a time interval of 5 years (J Cult Herit 2009). Here, we focus on the dynamics of the ongoing detachment processes. In order to regularly measure small surface displacements in situ over a long duration of several years, a new method that we call Mirror Micrometry (MM) has been designed and implemented. This method monitors the reflection of a light beam by a mirror that is mounted to the surface of interest for the duration of the experiment. The mirror is designed to rotate about a pivot as small displacements in the detaching surface occur, thus deflecting the reflected light beam. Measurements over more than three years in the Convent Church and in the Holy Cross Chapel reveal various types of surface displacement perpendicular to the wall surface. These are correlated with relative humidity (RH) changes in the room climate. Reversible short-term variations of approximately ±5–10 μm occur with periods of one to several weeks and relate primarily to weather changes. Reversible long-term variations of ±5–10 μm correspond to averaged seasonal humidity changes. Irregular and irreversible movements in increments of 20–30 μm record very localised progressive detachment steps. A semi-quantitative correlation of approximately 1 μm surface displacement per 1% RH change is calculated. Based on the fact that nearby measuring points can simultaneously move in opposite directions, a geometric model is drawn to explain deformation by hygric swelling and shrinking of different shapes of detached layers.     

From Musical Expressivity to Public Political Discourse Proper: The Case of Karpe Diem in the Aftermath of the Utøya Massacre

Musical communication is widely understood to be too elusive and abstract to have any discernible significance for political public discourse. However, in the aftermath of the Utøya massacre there have been several instances where hip hop music and performances have been subjected to politicised debate in the Norwegian public sphere. Based on a qualitative case study of the media reception of the Norwegian hip hop group Karpe Diem, this study finds that their music both provoked and fed into extensive public debates concerning topical cultural and political issues. Moreover, this study outlines the process through which Karpe Diem and their music came to be publicly identified, and responded to, as politically significant. Based on the evidence of the findings, this article further argues that hip hop music fills a peripheral (yet significant) function in the model of the political system as outlined by Habermas (2006).     

Differential time responses in inflammatory and oxidative stress markers after a marathon: An observational study

ABSTRACT

Acute and adaptive changes in systemic markers of oxidatively generated nucleic acid modifications (i.e., 8-oxo-7,8-dihydro-2?-deoxyguanosine (8-oxodG) and 8-oxo-7,8-dihydroguanosine (8-oxoGuo)) as well as inflammatory cytokines (i.e., C-reactive protein, interleukin-6, interleukin-10, and tumour necrosis factor alpha), a liver hormone (i.e., fibroblast growth factor 21 (FGF21)), and bone metabolism markers (sclerostin, osteocalcin, C-terminal telopeptide, and N-terminal propeptide of type 1 procollagen) were investigated following a marathon in 20 study participants. Immediate changes were observed in inflammatory cytokines, FGF21, and bone metabolism markers following the marathon. In contrast, no immediate changes in urinary excretion of 8-oxodG and 8-oxoGuo were evident. Four days after the marathon, decreased urinary excretion of 8-oxodG (-2.9 (95% CI -4.8;-1.1) nmol/24 h, P < 0.01) and 8-oxoGuo (-5.8 (95% CI -10.3;-1.3) nmol/24 h, P = 0.02) was observed. The excretion rate of 8-oxodG remained decreased 7 days after the marathon compared to baseline (-2.3 (95%CI -4.3;-0.4) nmol/24 h, P = 0.02), whereas the excretion rate of 8-oxoGuo was normalized. In conclusion marathon participation immediately induced a considerable inflammatory response, but did not increase excretion rates of oxidatively generated nucleic acid modifications. In fact, a delayed decrease in oxidatively generated nucleic acid modifications was observed suggesting adaptive antioxidative effects following exercise.     

Job Values in Professional Education: The role of achievement goals

What kind of jobs students prefer after having completed their professional education may have important personal and organisational consequences. It is therefore essential to gain a better understanding of the job values they pursue, as well as of the antecedents of such values. In this longitudinal study, we first showed that the job values of the 152 participating Norwegian student nurses and student teachers could be divided into extrinsic job values, such as high salary and good opportunities for advancement, and intrinsic job values, such as good social relations and interesting work. Moreover, we found that an important aspect of academic motivation, that is, students' achievement goals, predicted their job values. Specifically, students adopting performance‐approach goals were more likely to pursue extrinsic job values and students adopting mastery goals were more likely to pursue intrinsic job values. Ways in which the findings address current controversies in the literature on achievement goals are discussed.     

Measuring the causes for the growth in special needs education. A validation of a questionnaire with possible factors explaining the growing demand for special provisions in education

In recent decades, the basic principle in Norway’s education policy has been that all students should receive adapted education within the framework of the mainstream schools. This policy notwithstanding, the rate of students for whom special support was initiated, rose from 6.2% in 2006 to 8.0% in 2014. The study reported here developed measures for the possible causes for this unwelcome development. A questionnaire with 23 statements suggesting possible causes of the increase in the use of special support was presented to 136 teachers in primary and lower secondary school. A factor analysis revealed that 12 items formed three reliable scales for possible causes behind the high demand for special provisions: ‘Focus on students’ problems’, ‘External pressure on schools’ and ‘Early support’. The teachers stated that these causes had moderate impact. The study has resulted in three scales useful in measuring three causes.     

Forefoot and heel take-off strategies result in different distribution of lower extremity work during landings

ABSTRACT

Previous research suggests that landing mechanics may be affected by the mechanics of the preceding jump take-off. The purpose of the present study was to investigate whether jump take-off mechanics influence the subsequent landing mechanics. Female volleyball (n = 17) and ice hockey (n = 19) players performed maximal vertical jumps with forefoot and heel take-off strategies. During forefoot and heel jumps, participants were instructed to shift their weight to their forefoot or heel, respectively, and push through this portion of the foot throughout the jump. Jump mechanics were examined using 3D motion analysis, where lower extremity net joint moment (NJM) work, NJM, and segment angles were compared between forefoot and heel jumps using multivariate ANOVA. During jump take-off, participants performed more positive ankle plantar flexor and knee extensor NJM work in forefoot compared to heel jumps (P < 0.05). From initial foot contact to foot flat, participants performed more negative ankle plantar flexor and hip extensor NJM work during heel compared to forefoot jumps (P < 0.05). The present results demonstrate that using a heel take-off strategy results in a different distribution of lower extremity NJM work and NJM during landing compared to landings following forefoot jumps.     

Designing Deliberation Systems

In a liberal democracy, the evolution of political agendas and formation of policy involves deliberation: serious consideration of political issues. Modern-day political participation is dependent on widespread deliberation supported by information and communication technologies, which also offer the potential to revitalize and transform citizen engagement in democracy. Although the majority of Web 2.0 systems enable these discourses to some extent, government institutions commission and manage specialized deliberation systems (information systems designed to support participative discourse) intended to promote citizen engagement. The most common examples of these are political discussion forums. Although usually considered trivial adaptations of well-known technologies, these types of deliberative systems are often unsuccessful, and present a distinct set of design and management challenges. In this article, the authors analyze the issues involved in establishing political deliberation systems under four headings: stakeholder engagement, Web platform design, service management, political process reshaping, and evaluation and improvement. We review the existing literature and present a longitudinal case study: the Norwegian Demokratitorget (Democracy Square). We define key issues in each of the four areas, which need to be understood to design and manage a successful net-based deliberation forum.