45,586 research outputs found

    Search for heavy Majorana or Dirac neutrinos and right-handed WW gauge bosons in final states with charged leptons and jets in pppp collisions at s=13\sqrt{s}=13 TeV with the ATLAS detector

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    A search for heavy right-handed Majorana or Dirac neutrinos NRN_{\mathrm{R}} and heavy right-handed gauge bosons WRW_{\mathrm{R}} is performed in events with energetic electrons or muons, with the same or opposite electric charge, and energetic jets. The search is carried out separately for topologies of clearly separated final-state products (``resolved'' channel) and topologies with boosted final states with hadronic products partially overlapping and reconstructed as a large-radius jet (``boosted'' channel). The events are selected from pppp collision data at the LHC with an integrated luminosity of 139 fb1^{-1} collected by the ATLAS detector at s\sqrt{s} = 13 TeV. No significant deviations from the Standard Model predictions are observed. The results are interpreted within the theoretical framework of a left-right symmetric model, and lower limits are set on masses in the heavy right-handed WRW_{\mathrm{R}} boson and NRN_{\mathrm{R}} plane. The excluded region extends to about m(WR)=6.4m(W_{\mathrm{R}}) = 6.4 TeV for both Majorana and Dirac NRN_{\mathrm{R}} neutrinos at m(NR)<1m(N_{\mathrm{R}})<1 TeV. NRN_{\mathrm{R}} with masses of less than 3.5 (3.6) TeV are excluded in the electron (muon) channel at m(WR)=4.8m(W_{\mathrm{R}})=4.8 TeV for the Majorana neutrinos, and limits of m(NR)m(N_{\mathrm{R}}) up to 3.6 TeV for m(WR)=5.2m(W_{\mathrm{R}}) = 5.2 (5.05.0) TeV in the electron (muon) channel are set for the Dirac neutrinos.Comment: 48 pages in total, author list starting page 31, 9 figures, 5 tables, submitted to EPJC. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2019-39

    Deliberative Democracy, Perspective from Indo-Pacific Blogosphere: A Survey

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    Deliberation and communication within the national space have had numerous implications on how citizens online and offline perceive government. It has also impacted the relationship between opposition and incumbent governments in the Indo-Pacific region. Authoritarian regimes have historically had control over the dissemination of information, thereby controlling power and limiting challenges from citizens who are not comfortable with the status quo. Social media and blogs have allowed citizens of these countries to find a way to communicate, and the exchange of information continues to rise. The quest by both authoritarian and democratic regimes to control or influence the discussion in the public sphere has given rise to concepts like cybertroopers, congressional bloggers, and commentator bloggers, among others. Cybertroopers have become the de facto online soldiers of authoritarian regimes who must embrace democracy. While commentator and congressional bloggers have acted with different strategies, commentator bloggers educate online citizens with knowledgeable information to influence the citizens. Congressional bloggers are political officeholders who use blogging to communicate their positions on ongoing national issues. Therefore, this work has explored various concepts synonymous with the Indo-Pacific public sphere and how it shapes elections and democracy

    Genetic variability and character association studies among seed yield and yield component traitsin safflower (Carthamus tinctorius L.) genotypes

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    A study was carried out to assess the genetic variability and association among yield attributing traits in 60 different safflower genotypes over six environments. The pooled analysis of variance (ANOVA) revealed that all attributes had a considerable degree of variation.The pooled analysis of variability parameters revealed that the phenotypic coefficients of variation (PCV) was higher than the genotypic coefficients of variation (GCV)for all of the characteristics evaluated, indicating that experimental variance contributed to total variation.Petal yield/plant and seed yield/plant had the highest PCV and GCV followed by number of capitula/plant, number of seeds/capitula, height of insertion of first branch, hundred seed weight, number of primary branches/plant, length of longest primary branches, number of secondary branches and height up to main capitula.Number of capitula/plant, seed yield/plant, petal yield/plant, height of insertion of first branch, number of seeds per capitula, hundred seed weight, number of primary branches/plant, length of the longest primary branches, number of secondary branches, height upto main capitula, capitulum diameter and plant height all had high heritability and genetic advance as percent of mean. Seedyield/plant showed positive, significant and directcorrelation with number of capitula/plant, number of seeds/capitulum, height up to the main capitulum, plant height, number of primary branches/plant, capitulum diameter, and hundred seed weight.Number of capitula/planthad the maximum direct effect on grain yield/plant followed by number of seeds/capitulum, hundred seed weight and petal yield/plant. Hence selection of these traits would improve seed and petal yield in safflower breeding program

    Testing the nomological network for the Personal Engagement Model

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    The study of employee engagement has been a key focus of management for over three decades. The academic literature on engagement has generated multiple definitions but there are two primary models of engagement: the Personal Engagement Model of Kahn (1990), and the Work Engagement Model (WEM) of Schaufeli et al., (2002). While the former is cited by most authors as the seminal work on engagement, research has tended to focus on elements of the model and most theoretical work on engagement has predominantly used the WEM to consider the topic. The purpose of this study was to test all the elements of the nomological network of the PEM to determine whether the complete model of personal engagement is viable. This was done using data from a large, complex public sector workforce. Survey questions were designed to test each element of the PEM and administered to a sample of the workforce (n = 3,103). The scales were tested and refined using confirmatory factor analysis and then the model was tested determine the structure of the nomological network. This was validated and the generalisability of the final model was tested across different work and organisational types. The results showed that the PEM is viable but there were differences from what was originally proposed by Kahn (1990). Specifically, of the three psychological conditions deemed necessary for engagement to occur, meaningfulness, safety, and availability, only meaningfulness was found to contribute to employee engagement. The model demonstrated that employees experience meaningfulness through both the nature of the work that they do and the organisation within which they do their work. Finally, the findings were replicated across employees in different work types and different organisational types. This thesis makes five contributions to the engagement paradigm. It advances engagement theory by testing the PEM and showing that it is an adequate representation of engagement. A model for testing the causal mechanism for engagement has been articulated, demonstrating that meaningfulness in work is a primary mechanism for engagement. The research has shown the key aspects of the workplace in which employees experience meaningfulness, the nature of the work that they do and the organisation within which they do it. It has demonstrated that this is consistent across organisations and the type of work. Finally, it has developed a reliable measure of the different elements of the PEM which will support future research in this area

    Auditing Elon Musk's Impact on Hate Speech and Bots

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    On October 27th, 2022, Elon Musk purchased Twitter, becoming its new CEO and firing many top executives in the process. Musk listed fewer restrictions on content moderation and removal of spam bots among his goals for the platform. Given findings of prior research on moderation and hate speech in online communities, the promise of less strict content moderation poses the concern that hate will rise on Twitter. We examine the levels of hate speech and prevalence of bots before and after Musk's acquisition of the platform. We find that hate speech rose dramatically upon Musk purchasing Twitter and the prevalence of most types of bots increased, while the prevalence of astroturf bots decreased.Comment: 3 figures, 1 tabl

    Mobile Arts for Peace: Small Grants Evaluation Report

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    The Mobile Arts for Peace (MAP) project is an international study that seeks to provide a comparative approach to peace-building utilising interdisciplinary arts-based practices, working with communities in Indonesia, Kyrgyzstan, Nepal and Rwanda (see figure 1.1). This research was commissioned by the project lead organisation, the University of Lincoln, and has been delivered by the University of Northampton’s Institute for Social Innovation and Impact (see Appendix A for research biographies). This report focuses on the Small Grants awarded across the four countries, and acts as a follow-up to the Phase One Report that was produced in the winter of 2021. The delivery of the Small Grants projects has taken place over the last 12 months across the above four countries, and this report seeks to demonstrate, through a narrative case-study approach, how the Small Grants work delivered has promoted arts-based peacebuilding and supported community cohesion. The research reported in this document took place between February and October 2022 and focused on the below research aim and four key research questions. Aim: To evaluate the efficacy of the MAP Small Grants projects and understand their impact in communities. Specifically: 1. What outputs were delivered through the Small Grants projects? 2. What outcomes for beneficiaries/stakeholders were delivered through the Small Grants projects? 3. What impacts delivered for communities and societies across the four countries were delivered through the Small Grants projects? The report is structured as follows: first, the methodological approach undertaken in the evaluation will be presented; second, the case-studies across the four countries will be presented and discussed, utilising data gathered by the in-country research teams and the arts-based outputs produced; third, the findings will be summarised, with specific recommendations also made for the implications related to the MAP Large Grant evaluation projects and the recently awarded MAP Medium Grant projects. References and Appendices can also be found at the end of the report

    Crime and Prejudice: Ming Criminal Justice as Seen in 16th Century Spanish Sources

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    胡安•冈萨雷斯•德•门多萨于1585年出版的 《中华大帝国史》第一次以西班牙语和葡萄 牙语全面整理了有关中国的记述。该书正面 记录了中国明朝司法制度,并探讨了这些司 法制度与当代西班牙和墨西哥司法制度之间 的巨大差别。其中包括对法律和公共框架的 曲解,公众对证人的质疑,多层面不同形式 的惩罚,经济上的惩罚以及死刑的场景。作 者在书中强调通过奖励和惩罚双重方式对各 级官员、下属大臣进行严格控制,以保证对 各级官员的选拔任用标准,这一点也曾在蒙 田对明代官员的评价中得到过体现。此外, 胡安•冈萨雷斯•德•门多萨还十分崇敬守护印 第安人的拉斯卡萨斯,他决定从他的文献中 删掉那些为对抗中国而向强硬派提供的所谓 正当权利的论辩,如洛阿尔卡所目睹的邪恶 和杜拉埃尼亚所描述的死刑等。 González de Mendoza’s book on China, published in 1585, compiled all the first narratives about China, both Portuguese and Spanish. It contains a highly positive account of Ming criminal justice in which he emphasizes those elements of Chinese justice that deeply contrasts with Spanish and Mexican practices: the legal and public frame of torture, the public questioning of witnesses, the multilayered revisions of penalties, the public placing of the monetary fines, and the mise en scène of the death penalty. He insistently highlights the strict control upon every layer of officers and inferior ministers through a double procedure of rewards and punishments that guarantees the high standing of Chinese officials, an appraisal that Montaigne would pick up in his extremely rare allusions to China. At the same time, González de Mendoza, a thorough admirer of father Las Casas, the defender of Indians, decided to omit from his sources those elements that could provide the hardliners with arguments, the just title, to confront China, such as the nefandous sin witnessed by Loarca and the death by a thousand cuts described by Dueñas

    Contesting the ‘Responsibility to Protect’ in Southeast Asia: Rejection or Normative Resistance?

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    This article explores the engagement of Southeast Asian states with the Responsibility to Protect principle (R2P) in relation to the Rohingya in Myanmar and the ‘war on drugs’ in the Philippines. It finds a form of contestation based upon subsidiary principles and local interests in which states have offered normative resistance to international scrutiny in order to justify their limited response to the atrocities. Elite stakeholders have emphasised that asean already has principles and frameworks to address abuses – which reflect the historical experience, social context, and political culture of the region – in order to support their resistance to R2P. While existing debates about the R2P principle in Southeast Asia tend to be oriented around the opposing poles of incremental adaptation and adoption versus outright rejection, our conclusion is distinct: R2P is consciously contested in Southeast Asia on normative grounds which must be understood in the context of the region