bluuebunny/crossref_metadata_2025_split huggingface dataset:
Precise targeting of myotubes to muscle attachment sites patterns the musculoskeletal system
Authors: Yang Shuo , Weske Allison , Du Yingqiu , Valera Juliana M. , Johnson Aaron N. 
Published: July 2019

SummaryNascent myotubes undergo a dramatic morphological transformation during myogenesis in which the myotubes elongate over several cell diameters and choose the correct muscle attachment sites. Although this process of myotube guidance is essential to pattern the musculoskeletal system, the mechanisms that control myotube guidance remain poorly understood. Using transcriptomics, we found that components of the Fibroblast Growth Factor (FGF) signaling pathway were enriched in nascent myotubes inDrosophilaembryos. Null mutations in the FGF receptorheartless(htl), or its ligands, caused significant myotube guidance defects. Mechanistically, paracrine FGF signals to Htl in the mesoderm regulate the activity of Rho/Rac GTPases in nascent myotubes to effect changes in the actin cytoskeleton. FGF signals are thus essential regulators of myotube guidance that act through cytoskeletal regulatory proteins to pattern the musculoskeletal system.
Distribution and restoration of serotonin-immunoreactive paraneuronal cells during caudal fin regeneration in zebrafish
Authors: König Désirée , Dagenais Paule , Senk Anita , Djonov Valentin , Aegerter Christof M. , Jaźwińska Anna 
Published: July 2019

AbstractAquatic vertebrates possess diverse types of sensory cells in their skin to detect stimuli in the water. In the adult zebrafish, a common model organism, the presence of such cells in fins has only rarely been studied. Here, we identified scattered serotonin (5-HT)-positive cells in the epidermis of the caudal fin. These cells were distinct from keratinocytes as revealed by their low immunoreactivity for cytokeratin and desmosome markers. Instead, they were detected by Calretinin (Calbindin-2) and Synaptic vesicle glycoprotein 2 (SV2) antibodies, indicating a calcium-regulated neurosecretory activity. Consistently, electron microscopy revealed abundant secretory organelles in desmosome-negative cells in the fin epidermis. Based on the markers, 5-HT, Calretinin and SV2, we referred to these cells as HCS-cells. We found that HCS-cells were spread throughout the entire caudal fin at an average density of 140 cells per mm2on each fin surface. These cells were strongly enriched at ray bifurcations in wild type fins, as well as in elongated fins ofanother longfinmutant fish. To determine whether hydrodynamics play a role in the distribution of HCS-cells, we used an interdisciplinary approach and performed kinematic analysis. Measurements of particle velocity with a fin model revealed differences in fluid velocities between bifurcated rods and adjacent non-bifurcated regions. Therefore the accumulation of HCS-cells near bone bifurcations may be a biological adaptation for sensing of water parameters. The significance of this HCS-cell pattern is reinforced by the fact, that it is reestablished in the regenerated fin after amputation. Regeneration of HCS-cells was not impaired by the chemical inhibition of serotonin synthesis, suggesting that this neurotransmitter is not essential for the restorative process. In conclusion, our study identified a specific population of solitary paraneurons in the zebrafish fin, whose distribution correlates with fluid dynamics.
Solar UAV design framework for a HALE flight
Authors: Hwang Hoyon , Cha Jaeyoung , Ahn Jon 
Published: July 2019

Purpose
The purpose of this paper is to present the development of an optimal design framework for high altitude long endurance solar unmanned aerial vehicle. The proposed solar aircraft design framework provides a simple method to design solar aircraft for users of all levels of experience.

Design/methodology/approach
This design framework consists of algorithms and user interfaces for the design of experiments, optimization and mission analysis that includes aerodynamics, performance, solar energy, weight and flight distances.

Findings
The proposed sizing method produces the optimal solar aircraft that yields the minimum weight and satisfies the constraints such as the power balance, the night time energy balance and the lift coefficient limit.

Research limitations/implications
The design conditions for the sizing process are given in terms of mission altitudes, flight dates, flight latitudes/longitudes and design factors for the aircraft configuration.

Practical implications
The framework environment is light and easily accessible as it is implemented using open programs without the use of any expensive commercial tools or in-house programs. In addition, this study presents a sizing method for solar aircraft as traditional sizing methods fail to reflect their unique features.

Social implications
Solar aircraft can be used in place of a satellite and introduce many advantages. The solar aircraft is much cheaper than the conventional satellite, which costs approximately $200-300m. It operates at a closer altitude to the ground and allows for a better visual inspection. It also provides greater flexibility of missions and covers a wider range of applications.

Originality/value
This study presents the implementation of a function that yields optimized flight performance under the given mission conditions, such as climb, cruise and descent for a solar aircraft.
Does regulation matter? Changes in corporate governance in China and its impact on financial market growth: an empirical analysis (1995-2014)
Authors: Chen Ding , Samanta Navajyoti , Hughes James 
Published: July 2019

Purpose
Over the past two decades, China’s stock market has experienced rapid growth. This period has seen the transplantation of many “OECD principles of corporate governance” into the Chinese corporate regulatory framework. These regulations are dominated by shareholder values. This paper aims to discover whether there is a causal relationship between the changes in China’s corporate governance and financial market growth.

Design/methodology/approach
This paper uses data from 1995-2014 to create a robust corporate index by looking at 52 variables and a financial index out of five financial market parameters. Subsequently, data are subject to a panel regression analysis, with the financial market index as the outcome variable, corporate governance index explanatory variable and a variety of economics, social and technological control variables.

Findings
This paper concludes that changes in corporate regulation have in fact had no statistically significant impact on China’s financial market growth, which must therefore be attributed to other factors.

Originality/value
The study is the first in the context of Chinese corporate governance impact studies to use Bayesian methodology to analyse a panel dataset. It uses OECD principles as the anchor to provide a clear picture of evolution of corporate governance for a 20-year period which is also longer than previous studies.
Developing an integrated indoor built environment–quality of life model for the elderly in public and subsidized housing
Authors: Leung Mei-yung , Famakin Ibukun Oluwadara , Wang Chendi 
Published: July 2019

Purpose
The growth rate of the aging population raises the demand for and challenges of public and subsidized (P&S) housing for the elderly. The decline in elderly ability increases their dependence on the quality of facilities provided by their residential apartment. Hence, the purpose of this paper is to develop an integrated indoor built environment–quality of life model for the elderly in P&S housing estates.

Design/methodology/approach
A questionnaire survey, including scales for 4 quality of life (QoL) domains (physical health, psychological health, social relationships and overall QoL), and 13 indoor built environment (BE) components were identified. In total, 365 survey data were collected from the elderly in 18 political districts of Hong Kong, while reliability analysis, multiple regression analysis and structural equation modeling were adopted in the data analysis.

Findings
Based on the congruence of results of these statistical analyses, it was revealed that: furniture and fixtures predict all the four QoL domains of the elderly; lighting and color induce social relationships; and overall QoL is predicted by distance and handrails.

Originality/value
Several recommendations were made in accordance with the research results, such as review minimum spacing requirements to provide walking distance for elderly physical activity, investigate the micro-climate for appropriate building orientation, consider the changing body size of the elderly for supply of furniture, use warm colors with high levels of illumination, and so on.
Engagement in peer review, learner-content interaction and learning outcomes
Authors: Goh Chin Fei , Tan Owee Kowang , Rasli Amran , Choi Sang Long 
Published: July 2019

Purpose
The purpose of this paper is to propose a reciprocal peer review approach that resembled the scholarly peer review process using the Moodle e-learning system. The authors investigated interrelations among engagement in providing peer feedback, engagement in responding to peer feedback, learner-content interaction and learning outcomes.

Design/methodology/approach
An experimental intervention study was designed. A total of 45 students who enroled in an undergraduate research methods course completed the assigned project. Reciprocal peer review was adopted, in which the participants provided a peer review report on a randomly assigned peer’s research proposal. Subsequently, participants revised and submitted their proposal along with a response letter that highlighted the revisions.

Findings
This study highlights that the engagement in providing peer feedback exerts an indirect effect on learning outcomes through learner-content interaction. Learner-content interaction fully mediates the causal relationship between engagement in providing peer feedback and learning outcomes.

Practical implications
Learner-content interaction fully mediates the causal relationship between engagement in providing peer feedback and learning outcomes. Thus, e-learning practitioners who engage in peer review should first construct high-quality course materials to enhance learning outcomes.

Originality/value
Learning outcomes can be enhanced if there is a high level of engagement in providing peer feedback among learners. However, learner-content interaction fully mediates the positive effect of engagement in providing peer feedback on learning outcomes. Furthermore, engagement in providing peer feedback will enhance the learner’s motivation to intensify his or her learning from the course material.
Some recent influences on global consumer culture
Authors: Özsomer Ayşegül 
Published: July 2019

Purpose
The purpose of this paper is to build on Steenkamp’s reflections, and introduce emerging and important developments that are shaping the global landscape and influencing global consumer culture (GCC) and global brands (GBs).

Design/methodology/approach
The paper is a thought piece.

Findings
The implications for GCC and GBs are discussed in the context of digital networked technologies, new brands from emerging markets and the digitally connected bottom of the pyramid consumers.

Originality/value
The paper suggests areas where research value can be added within the GCC and global branding literatures.
Value co-creation andco-production in the interaction between citizens and public administration
Authors: Capolupo Nicola , Piscopo Gabriella , Annarumma Carmela 
Published: July 2019

Purpose
The aim of this paper is to address the value co-creation and co-production theories in public administration (P.A.) sector, particularly when public administration communicates with citizens during catastrophes, to provide a state of the art of the theoretical approach and its evolution.

Design/methodology/approach
Authors collected data between August and October 2017 from Scopus and Sciencedirect, looking for journals publications from 2010 to 2017, considering only articles containing in the abstract, title and keywords the following combinations: value co-creation AND P.A., value coproduction AND “P.A., crisis communication” AND “P.A.”.

Findings
By using three different keywords it appeared that the results of the individual topic contain results of all the other topics as well. It means that searching “value co-creation” AND “P.A.” appeared contributions of “value co-production” and “crisis communication” and vice-versa. The second reached result was to inscribe the theoretical approach of value co-creation into the interaction between citizens and public administration.

Research limitations/implications
Firstly, concentrating the research only on most recent articles from peer reviewed journals tends to exclude conference paper and other eventual contributions. Secondly, because the SLR has been conducted by searching with the keywords, only articles, which appeared in relation to the keywords connection in those databases, have been selected, excluding those papers closed to the themes, but classified under other terms.

Originality/value
This work value consists of trying to contextualize crisis communication during natural disasters in a theoretical context different from that which literature usually considers, i.e. value co-creation between public administration and citizens.
Investigating pressure advance algorithms for filament-based melt extrusion additive manufacturing: theory, practice and simulations
Authors: Tronvoll Sigmund Arntsønn , Popp Sebastian , Elverum Christer Westum , Welo Torgeir 
Published: July 2019

Purpose
This paper aims to present the mathematical foundation of so-called advance algorithms, developed to compensate for defects during acceleration and deacceleration of the print head in filament-based melt extrusion additive processes. It then investigates the validity of the mathematical foundation, its performance on a low-cost system and the effect of changing layer height on the algorithm’s associated process parameter.

Design/methodology/approach
This study starts with a compilation and review of literature associated with advance algorithms, then elaborates on its mathematical foundation and methods of implementation. Then an experiment displaying the performance of the algorithm implemented in Marlin machine firmware, Linear Advance 1.0, is performed using three different layer heights. The results are then compared with simulations of the system using Simulink.

Findings
Findings suggests that advance algorithms following the presented approach is capable of eliminating defects because of acceleration and deacceleration of the print head. The results indicate a layer height dependency on the associated process parameter, requiring higher compensation values for lower layer heights. It also shows higher compensation values for acceleration than deacceleration. Results from the simulated mathematical model correspond well with the experimental results but predict some rapid variations in flow rate that is not reflected in the experimental results.

Research limitations/implications
As there are large variations in printer design and materials, deviation between different setups must be expected.

Originality/value
To the best of authors’ knowledge, this study is the first to describe and investigate advance algorithms in academic literature.
Plant communities on nitrogen‐rich soil are less sensitive to soil moisture than plant communities on nitrogen‐poor soil
Authors: Shovon Tanvir Ahmed , Rozendaal Danaë M. A. , Gagnon Daniel , Gendron Fidji , Vetter Mary , Vanderwel Mark C. 
Published: July 2019

Abstract

Plant species composition and diversity are known to change across local gradients of light, moisture and nutrients, but ecologists still have a relatively limited understanding of how communities respond to multiple limiting resources.

We used a trait‐based approach to investigate how the functional composition and diversity of forest understorey plant communities change along gradients in light, soil moisture and nitrogen availability. We used a total of seven leaf, root and whole‐plant traits for 55–78 species, and estimated the effects of the three resources on the mean and dispersion of these traits in understorey plant communities across 50 forest sites.

Soil moisture and nitrogen availability (C/N ratio) both influenced plant community traits, but light availability (canopy openness) did not. Generally, increases in moisture and nitrogen both resulted in shifts towards more acquisitive resource use strategies, including greater leaf area, specific leaf area and maximum plant height, and lower leaf dry matter content, root dry matter content and rooting depth. Functional diversity of most traits also increased with increasing soil moisture and nitrogen. Although most traits varied with soil moisture on nitrogen‐poor sites, moisture did not influence of the distribution of any traits on nitrogen‐rich sites.

Synthesis. Independent co‐limitation of soil moisture and nitrogen appeared to influence the functional composition and diversity of understorey vegetation in our study area. The co‐occurrence of species with resource acquisitive and conservative strategies on nitrogen‐rich sites may make plant communities relatively resistant to changes to soil moisture. These results suggest that altered precipitation regimes under climate change could lead to greater changes in the composition and diversity of plant communities on nutrient‐poor soils than on nutrient‐rich soils.
Seed germination ecology and salt stress response in eight Mediterranean populations of Sarcopoterium spinosum (L.) Spach
Authors: Santo Andrea , Dessì Ludovica , Ucchesu Mariano , Bou Dagher Kharrat Magda , Charbel Sakr Ramy , Accogli Rita A. , Buhagiar Joseph , Kyratzis Angelos , Fournaraki Christini , Bacchetta Gianluigi 
Published: July 2019

AbstractThis study aims to deepen the analysis of seed germination ecology and salinity tolerance of Sarcopoterium spinosum (Rosaceae).Germination tests were conducted to evaluate the effect of the fruit’s spongy tissue and the intraspecific variability in seed germination among eight populations of the species on responses to light and total darkness, constant and alternating temperatures, salt stress and germination recovery. The effect of the presence of the spongy tissue varied among populations, with significant results for seed germination. For all populations, optimum germination temperatures were observed in the range of 10–20°C, indicating that S. spinosum and its germination in the field might occur preferably in the period between autumn and early spring. The high water availability due to rainfall during this period could be a considerable advantage for the seed germination of this species. Seeds of S. spinosum showed the ability to germinate in up to 250 mM NaCl in the substrate, and their ability to recover after salt exposure may be interpreted as adaptation to the coastal habitats in which they generally grow. These results give this species a halo‐tolerant character. Great inter‐population variability is detected in this study in several aspects, which indicated that the Mediterranean populations of S. spinosum differ considerably and are adapted to their local conditions. This study provides new information about S. spinosum seed ecology, which could help to preserve and apply effective conservation measures for this species, which in several areas of its distribution range is endangered.
Spontaneous mutations in FgSAD1 suppress the growth defect of the Fgprp4 mutant by affecting tri‐snRNP stability and its docking in Fusarium graminearum
Authors: Li Xiaoping , Fan Zhili , Yan Ming , Qu Jia , Xu Jin‐Rong , Jin Qiaojun 
Published: July 2019

SummaryFgPrp4, the only kinase in the spliceosome, is not essential for viability, but is important for splicing efficiency in Fusarium graminearum. The Fgprp4 deletion mutant had severe growth defects but often produced spontaneous suppressors with faster growth rate. To better understand the suppression mechanism, we identified and characterized spontaneous mutations in the tri‐snRNP‐specific protein, FgSad1, which suppressed the growth defects of Fgprp4. The L512P mutation was verified for its suppressive effects on Fgprp4, suggesting that mutations in FgSad1 may have effects involving FgPrp4 phosphorylation on FgSad1. Phosphoproteomics analysis showed that FgSad1 may not be the direct substrate of FgPrp4 kinase. Furthermore, truncation analysis showed that the N‐terminal, extra RS‐rich region of FgSad1 is critical for its function and is post‐translationally modified. The P258S or S269P mutations in FgSad1 increased its interactions with the U5 protein FgPrp8 and the U4/U6 protein FgPrp31, which may result in tri‐snRNP stabilization. Additionally, the D76N mutation increased the association of FgSad1 with the U2 snRNP. These data indicate that suppressor mutations in FgSad1 increase the stability of the tri‐snRNP and/or the affinity of FgSad1 with U2 snRNP and therefore potentially facilitate the docking of tri‐snRNP into the spliceosome.
Linking transformational leadership and value congruence among Chinese police force: The mediating role of goal clarity and the moderating role of public service motivation
Authors: Bao Yuanjie , Ge Leilei 
Published: July 2019

AbstractAlthough claimed as an important value assimilating factor within public administration, transformational leadership's effect over value congruence receives limited empirical investigation. Furthermore, the underlying mechanism and boundary condition of this effect are underspecified. Drawing from an interactionist perspective whereby value congruence is the joint product of situational influence and individual characteristic, this study investigates the relationship between transformational leadership and value congruence focusing on the mediating role of goal clarity and the moderating role of public service motivation (PSM). The analysis of data collected from a sample of 420 Chinese police officers indicates that goal clarity partially mediates the relationship between transformational leadership and value congruence. In addition, PSM moderates the relationship between goal clarity and value congruence such that the relationship is stronger when PSM is high. Finally, theoretical and practical implications are discussed.
Primitivist tourism and anthropological research: awkward relations★
Authors: Stasch Rupert 
Published: July 2019

AbstractMany anthropologists dislike the tourism depicted in the filmCannibal tours(1988), which values visited people for their supposed embodiment of an archaic mode of life, isolated from capitalist modernity. Here I approach such tourism through how its participants relate to anthropology, based on research into encounters between tourists and Korowai of Indonesian Papua. I juxtapose three patterns. First, Korowai sometimes assimilate me to ‘tourist’ or ‘tour guide’. Second, tourists often embrace ‘anthropology’ as an adjunct to their primitivist goals. Third, certain tourists investigate their own primitivism, in ways that parallel my research on that topic. This diversity of alignments of tourist, anthropologist, and Korowai calls for an analytic strategy not of seeking out the ultimate basic relations between these character‐types, but of understanding categorization as a practice of its own, through which categorizers grapple with broader historical conditions.