bluuebunny/crossref_metadata_2025_split huggingface dataset:
Spectral-power associations reflect amplitude modulation and within-frequency interactions on the sub-second timescale and cross-frequency interactions on the seconds timescale
Authors: Menceloglu Melisa , Grabowecky Marcia , Suzuki Satoru 
Published: January 2020

AbstractWe investigated the global structure of intrinsic cross-frequency dynamics by systematically examining power-based temporal associations among a broad range of oscillation frequencies both within and across EEG-based current sources (sites). We focused on power-based associations that could reveal unique timescale dependence independently of interacting frequencies. Large spectral-power fluctuations across all sites occurred at two characteristic timescales, sub-second and seconds, yielding distinct patterns of cross-frequency associations. On the fast sub-second timescale, within-site (local) associations were consistently between pairs ofβ-γfrequencies differing by a constant Δf(particularly Δf∼ 10 Hz at posterior sites and Δf∼ 16 Hz at lateral sites) suggesting that higher-frequency oscillations are organized into Δfamplitude-modulated packets, whereas cross-site (long-distance) associations were all within-frequency (particularly in the >30 Hz and 6-12 Hz ranges, suggestive of feedforward and feedback interactions). On the slower seconds timescale, within-site (local) associations were characterized by a broad range of frequencies selectively associated with ∼10 Hz at posterior sites and associations among higher (>20 Hz) frequencies at lateral sites, whereas cross-site (long-distance) associations were characterized by a broad range of frequencies at posterior sites selectively associated with ∼10 Hz at other sites, associations among higher (>20 Hz) frequencies among lateral and anterior sites, and prevalent associations at ∼10 Hz. Regardless of timescale, within-site (local) cross-frequency associations were weak at anterior sites indicative of frequency-specific operations. Overall, these results suggest that the fast sub-second-timescale coordination of spectral power is limited to local amplitude modulation and insulated within-frequency long-distance interactions (likely feedforward and feedback interactions), while characteristic patterns of cross-frequency interactions emerge on the slower seconds timescale. The results also suggest that the occipitalαoscillations play a role in organizing higher-frequency oscillations into ∼10 Hz amplitude-modulated packets to communicate with other regions. Functional implications of these timescale-dependent cross-frequency associations await future investigations.
Crystal structure of the giant panda MHC class I complex: first insights into the viral peptide presentation profile in the bear family
Authors: Yuan Hongyu , Ma Lizhen , Zhang Lijie , Li Xiaoying , Xia Chun 
Published: January 2020

ABSTRACTThe viral cytotoxic T lymphocyte (CTL) epitope peptides presented by classical MHC-I molecules require the assembly of a peptide-MHC-I-β2m (aka pMHC-I) trimolecular complex for TCR recognition, which is the critical activation link for triggering antiviral T cell immunity. Ursidae includes 5 genera and 8 species; however, research on T cell immunology in this family, especially structural immunology, is lacking. In this study, the structure of the key trimolecular complex pMHC-1 (aka pAime-128), which binds a peptide from canine distemper virus, was solved for the first time using giant panda as a representative species of Ursidae. The structural characteristics of the giant panda pMHC-I complex, including the unique pockets in the peptide-binding groove (PBG), were analyzed in detail. Comparing the panda pMHC-I to others in the bear family and extending the comparison to other mammals revealed distinct features. The interaction between MHC-I andβ2m, the features of pAime-128 involved in TCR docking and CD8 binding, the anchor sites in the PBG, and the CTL epitopes of potential viruses that infect pandas were concretely clarified. Unique features of pMHC-I viral antigen presentation in the panda were revealed by solving the three-dimensional structure of pAime-128. The distinct characteristics of pAime-128 indicate an unusual event that emerged during the evolution of the MHC system in the bear family. These results provide a new platform for research on panda CTL immunity and the design of vaccines for application in the bear family.IMPORTANCEUrsidae includes 5 genera and 8 species; however, the study of its immunology, especially structural immunology, is extremely rare to date. In this paper, we first crystallized the key complex pMHC-I, taking the giant panda as its representative species. Structural characteristics of the giant panda pMHC-I complexes, contains the unique pockets of PBG were analyzed in detail. Comparison of the panda pMHC-I in the bear family and other mammals, almost definite features was displayed. Meanwhile, the interaction between HC and LV, the unique features of pMHC-I in the CD8 binding and TCR docking, validation of anchor site in the PBG, and epitopes of potential viruses infected with the pandas, were concretely clarified. These unique characteristics of pMHC-I clearly indicate an unusual situation during the evolution of MHC molecules in the endangered pandas. These results also provide a novel platform for further study of panda T cell immunology and vaccines.
New virus isolates from Italian hydrothermal environments underscore the biogeographic pattern in archaeal virus communities
Authors: Baquero Diana P. , Contursi Patrizia , Piochi Monica , Bartolucci Simonetta , Liu Ying , Cvirkaite-Krupovic Virginija , Prangishvili David , Krupovic Mart 
Published: January 2020

ABSTRACTViruses of hyperthermophilic archaea represent one of the least understood parts of the virosphere, showing little genomic and morphological similarity to viruses of bacteria or eukaryotes. Here, we investigated virus diversity in the active sulfurous fields of the Campi Flegrei volcano in Pozzuoli, Italy. Virus-like particles displaying eight different morphotypes, including lemon-shaped, droplet-shaped and bottle-shaped virions, were observed and five new archaeal viruses proposed to belong to familiesRudiviridae,GlobuloviridaeandTristromaviridaewere isolated and characterized. Two of these viruses infect neutrophilic hyperthermophiles of the genusPyrobaculum, whereas the remaining three have rod-shaped virions typical of the familyRudiviridaeand infect acidophilic hyperthermophiles belonging to three different genera of the order Sulfolobales, namely,Saccharolobus,AcidianusandMetallosphaera. Notably,Metallosphaerarod-shaped virus 1 is the first rudivirus isolated onMetallosphaeraspecies. Phylogenomic analysis of the newly isolated and previously sequenced rudiviruses revealed a clear biogeographic pattern, with all Italian rudiviruses forming a monophyletic clade, suggesting geographical structuring of virus communities in extreme geothermal environments. Furthermore, we propose a revised classification of theRudiviridaefamily, with establishment of five new genera. Collectively, our results further show that high-temperature continental hydrothermal systems harbor a highly diverse virome and shed light on the evolution of archaeal viruses.
Impact of nanoscale hindrances on the relationship between lipid packing and diffusion in model membranes
Authors: Beckers Daniel , Urbancic Dunja , Sezgin Erdinc 
Published: January 2020

AbstractMembrane models have allowed for precise study of the plasma membrane’s biophysical properties, helping to unravel both structural and dynamic motifs within cell biology. Free standing and supported bilayer systems are popular models to reconstitute the membrane related processes. Although it is well-known that each have their advantages and limitations, comprehensive comparison of their biophysical properties is still lacking. Here, we compare the diffusion and lipid packing in giant unilamellar vesicles, planar and spherical supported membranes and cell-derived giant plasma membrane vesicles. We apply florescence correlation spectroscopy, spectral imaging and super-resolution STED-FCS to study the diffusivity, lipid packing and nanoscale architecture of these membrane systems, respectively. Our data show that lipid packing and diffusivity is tightly correlated in free-standing bilayers. However, nanoscale interactions in the supported bilayers cause deviation from this correlation. This data is essential to develop accurate theoretical models of the plasma membrane and will serve as a guideline for suitable model selection in future studies to reconstitute biological processes.
Rice NIN-LIKE PROTEIN 4 is a master regulator of nitrogen use efficiency
Authors: Wu Jie , Zhang Zi-Sheng , Xia Jing-Qiu , Alfatih Alamin , Song Ying , Huang Yi-Jie , Wan Guang-Yu , Sun Liang-Qi , Tang Hui , Liu Yang , Wang Shi-Mei , Zhu Qi-Sheng , Qin Peng , Wang Yu-Ping , Li Shi-Gui , Mao Chuan-Zao , Zhang Gui-Quan , Chu Chengcai , Yu Lin-Hui , Xiang Cheng-Bin 
Published: January 2020

AbstractNitrogen (N) is one of the key essential macronutrients that affects rice growth and yield. Inorganic N fertilizers are excessively used to boost yield and generate serious collateral environmental pollution. Therefore, improving crop N use efficiency (NUE) is highly desirable and has been a major endeavor in crop improvement. However, only a few regulators have been identified that can be used to improve NUE in rice to date. Here we show that the NIN-like protein OsNLP4 significantly improves the rice NUE and yield. Field trials consistently showed that loss-of-OsNLP4dramatically reduced yield and NUE compared with wild type under different N regimes. In contrast, theOsNLP4overexpression lines remarkably increased yield by 30% and NUE by 47% under moderate N level compared with wild type. Transcriptomic analyses revealed that OsNLP4 orchestrates the expression of a majority of known N uptake, assimilation and signaling genes by directly binding to the nitrate-responsivecis-element in their promoters to regulate their expression. Moreover, overexpression of OsNLP4 can recover the phenotype of Arabidopsisnlp7mutant and enhance its biomass. Our results demonstrate that OsNLP4 is a master regulator of NUE in rice and sheds light on crop NUE improvement.
A new hybrid particle swarm optimization and parallel variable neighborhood search algorithm for flexible job shop scheduling with assembly process
Authors: Fattahi Parviz , Bagheri Rad Naeeme , Daneshamooz Fatemeh , Ahmadi Samad 
Published: January 2020

Purpose
The purpose of this paper is to present a mathematical model and a new hybrid algorithm for flexible job shop scheduling problem with assembly operations. In this problem, each product is produced by assembling a set of several different parts. At first, the parts are processed in a flexible job shop system, and then at the second stage, the parts are assembled and products are produced.

Design/methodology/approach
As the problem is non-deterministic polynomial-time-hard, a new hybrid particle swarm optimization and parallel variable neighborhood search (HPSOPVNS) algorithm is proposed. In this hybrid algorithm, particle swarm optimization (PSO) algorithm is used for global exploration of search space and parallel variable neighborhood search (PVNS) algorithm for local search at vicinity of solutions obtained in each iteration. For parameter tuning of the metaheuristic algorithms, Taguchi approach is used. Also, a statistical test is proposed to compare the ability of metaheuristics at finding the best solution in the medium and large sizes.

Findings
Numerical experiments are used to evaluate and validate the performance and effectiveness of HPSOPVNS algorithm with hybrid particle swarm optimization with a variable neighborhood search (HPSOVNS) algorithm, PSO algorithm and hybrid genetic algorithm and Tabu search (HGATS). The computational results show that the HPSOPVNS algorithm achieves better performance than competing algorithms.

Practical implications
Scheduling of manufacturing parts and planning of assembly operations are two steps in production systems that have been studied independently. However, with regard to many manufacturing industries having assembly lines after manufacturing stage, it is necessary to deal with a combination of these problems that is considered in this paper.

Originality/value
This paper proposed a mathematical model and a new hybrid algorithm for flexible job shop scheduling problem with assembly operations.
Biodiversity reporting for governmental organisations
Authors: Gaia Silvia , Jones Michael John 
Published: January 2020

PurposeThe purpose of this paper is to analyse the current nature and content of biodiversity reporting practices adopted by English local councils. By adopting a multi-theoretical framework that relies on economic and social theories such as agency, stakeholder, legitimacy and institutional theories, this study also aims to investigate the factors that explain the extent of biodiversity disclosure provided by local councils.Design/methodology/approachThis study uses a self-constructed disclosure index to analyse the biodiversity-related information published in the official websites of 351 English local councils. A multivariate analysis was conducted to analyse the association between local councils’ characteristics and biodiversity disclosure.FindingsThis study shows that the information disclosed on local biodiversity is limited and does not allow the interested stakeholders to get a comprehensive picture of the current status of local biodiversity. It also provides evidence that the level of biodiversity disclosure is significantly associated with the level of local council’s population, the presence of councillors from environmentally oriented parties and environmental non-governmental organisations operating in the local council area, poor biodiversity management practices and local councils’ visibility.Originality/valueThis study is one of the few accounting studies that provides a comprehensive analysis of biodiversity disclosure by analysing its nature and content and investigating the factors associated with such disclosure. It extends agency, stakeholder, institutional and legitimacy theories, by showing that local councils use voluntary disclosures to satisfy the informational needs of the main stakeholders and to assure that their strategies and practices conform to the values and expectations of the community they represent.
Investigation on the induction stirring effect in a laboratory scale crucible with the variation of electrical supply parameters
Authors: Forzan Michele , Dughiero Fabrizio , Guglielmi Mattia , Marconi Antonio 
Published: January 2020

Purpose
This paper aims to study the possibility of controlling the electromagnetic stirrer (EMS) is fundamental in a continuous casting line to achieve the desired properties of homogeneity and mechanical strength in the solidified cast.

Design/methodology/approach
Coupled electromagnetic (EM) and fluid dynamic (FD) simulations allow to predict the mixing effect on molten metal, in terms of velocity amplitude and shape of the flow. This paper describes the numerical results of EMS effect within a cylindrical crucible, surrounded by a solenoidal inductor, filled with a low melting temperature alloy, i.e. GalInStan.

Findings
Induced forces and resulting velocity distribution of the flow of the liquid metal have been calculated depending on varying amplitude and frequency of the supplied current. As expected, at a given amplitude of the current supply, the velocity distribution shows a maximum at a certain frequency while the intensity of electrodynamic forces monotonically increase as the frequency increases

Originality/value
The paper deals with simply models and experiments applied to coupled EM and FD problem, to assess the applied methodology.
Workplace exercise programmes – how organizational factors influence employee participation
Authors: Little Anna , Wordsworth Russell , Malinen Sanna 
Published: January 2020

Purpose
Past research identifies many positive outcomes associated with workplace exercise initiatives. Realizing these outcomes is, however, dependent on securing sustained employee participation in the initiative. This study examines how organizational factors influence employee participation in workplace exercise initiatives.

Design/methodology/approach
The study utilizes data from 98 employees who were provided with the opportunity to participate in a workplace exercise initiative. Data were collected via an online survey as well as semi-structured interviews.

Findings
The paper shows that organizational, rather than individual-level, factors had the greatest impact on employee participation in workplace exercise initiatives. Leadership support for well-being was particularly important and had a significant effect on participation frequency. This relationship was moderated by employee perceptions of employer intentions, such that the more genuine and caring an employer’s intentions were perceived to be, the more likely employees were to participate. Our findings also show that perceived employer intentions have a significant direct effect on employee participation.

Research implications
We extend research on employee participation in well-being initiatives by considering the influence of organizational, rather than individual-level, factors.

Practical implications
This research is of practical significance as it highlights the importance of positive leadership in fostering physical well-being in the workplace. It reinforces that sustained participation in workplace exercise initiatives requires deliberate planning, promotion and support from organizational leaders.

Originality/value
Most studies of workplace exercise and well-being initiatives focus on individual barriers to participation. Our study highlights the important role of leadership support and perceived intentions as organizational influences on employee participation.
Examining the effect of xenophobia on “transnational” mega construction project (MCP) success
Authors: Zaman Umer 
Published: January 2020

PurposeThe purpose of this paper is to argue that modern-day xenophobia has emerged as one of the high-risk factors for transnational mega construction projects (MCP’s). While research in transnational MCP’s remains surprisingly under-explored, this study aimed to examine how transformational leadership (TFL) and HPW practices can still achieve MCP success despite the rise of xenophobia in the global construction industry.Design/methodology/approachThis study examined survey-based sample evidence from 220 respondents including project team members (operational, quality and technical), project stakeholders (e.g. regulatory authority, subcontractors, functional managers, etc.) and project clients/sponsors. Partial least squares structural equation modeling (PLS-SEM) technique was employed to test the theoretical hypotheses and to highlight significance of a holistic and novel framework of MCP success.FindingsThis study’s core finding unveiled a significantly negative effect of xenophobia on MCP success (ß=−0.389,t=5.574,p<0.000). Interestingly, PLS-SEM results also showed a significantly negative effect of TFL on MCP success (ß=−0.172,t=2.323,p<0.018), whereas HPW practices demonstrated a significantly positive effect on MCP success (ß=0.633,t=9.558,p<0.000). In addition, xenophobia and MCP success relationship were positively moderated by TFL (ß=0.214,t=2.364,p<0.018) and HPW practices (ß=0.295,t=3.119,p<0.002), respectively.Research limitations/implicationsThis study underscores the importance of TFL and HPW practices in explaining the linkage between xenophobia and MCP success. Besides advancement of broader multi-disciplinary research and cross-pollination of research ideas, this study also offers unique research direction to explore the potential impact of TFL and HPW practices in demographically diverse project settings especially in countries where xenophobia has swiftly become inevitable.Practical implicationsAs many countries undertake MCP’s with national pride and high strategic importance, this study provides an exemplary model of transnational MCP success. This study shows that conscious use of TFL and HPW practices could guard against escalating xenophobia in the global construction industry.Originality/valueThis study is first to provide an empirically grounded model of MCP success that collectively examines the role of xenophobia, TFL and HPW practices. This research has developed practical references for transnational construction companies in strategic planning and management of MCP’s.
Intraemprendimiento social en natura
Authors: Alt Elisa de Resende , Spitzeck Heiko 
Published: January 2020

Learning outcomes
Estos son los cuatro objetivos de aprendizaje del caso: ilustrar las mejores prácticas para las actividades de intraemprendimiento que buscan crear valor compartido (en este caso, valor para Natura y para la comunidad); definir el rol y las características de los intraempresarios sociales (personas dentro de grandes empresas que impulsan la innovación sostenible); discutir los obstáculos que presenta el entorno corporativo para el proceso de la innovación social; e ilustrar la manera en la que se puede implementar una estrategia de valor compartido dentro de una compañía.

Case overview/synopsis
El caso de Priscila Matta se enfoca en el rol del intraemprendimiento social y de la inclusión social en Natura, la mayor compañía de cosméticos de Brasil y líder en responsabilidad corporativa. Centrándose en las complejidades que surgen al lidiar con una comunidad local que suministra los ingredientes clave para la línea de productos Ekos, la marca más prominente e innovadora de la compañía, el caso ilustra las dificultades a la hora de establecer formas incluyentes de negocio con una comunidad tradicional en el nororiente de Brasil. Ekos se basa en la enorme biodiversidad brasilera y en el conocimiento tradicional. Las leyes de Brasil exigen que Natura comparta los beneficios obtenidos gracias al acceso al patrimonio genético y al conocimiento tradicional con las comunidades que suministran estos recursos. De manera implícita, el caso se enfoca en el rol de la intraemprendedora social Priscila Matta, y en cómo sorteó la política corporativa para estructurar las relaciones comunitarias de la compañía. El caso demuestra las dificultades que enfrentan los intraempresarios sociales que buscan crear innovaciones sostenibles para ejecutar estrategias de valor compartido.

Complexity academic level
Maestría en ciencias, Maestría en administración de empresas, y programas de educación ejecutiva.

Supplementary materials
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Subject code
CSS 3: Entrepreneurship.