bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of Hydrogen Peroxide on Organically Fertilized Hydroponic Lettuce (Lactuca sativaL.)
Authors: Lau Vanessa , Mattson Neil 
Published: January 2021

AbstractHydroponic production typically uses conventional fertilizers and information is lacking on the use of organic hydroponic fertilizers. Development of biofilm is a common problem with organic hydroponics which can reduce dissolved oxygen availability to roots. One potential solution is the use of hydrogen peroxide, H2O2which can reduce microbial populations and decomposes to form oxygen. However, information is lacking on the impact of hydrogen peroxide on hydroponic crops. The aim of this study was to determine the effects of H2O2concentrations in deep water culture hydroponics by assessing how it affects plant size and yield in lettuce (Lactuca sativa L.) ‘Rouxai’. In this experiment, three different treatments consisting of a control without H2O2, and the application of 37.5 mg/L or 75 mg/L of hydrogen peroxide were added to aerated 4-L reservoirs that contained either organic (4-4-1) or inorganic nutrients (21-5-20), both applied at 150 mg·L-1N. Three replicates for each treatment and each fertilizer were prepared resulting in a total of eighteen mini hydroponic containers each with one head of lettuce. When added to conventional fertilizers, concentrations of 37.5 mg/L and 75 mg/L of H2O2led to stunted growth or death lettuce plants. However, when 37.5 mg/L of H2O2was applied to organic fertilizers, the lettuce yield nearly matched that of the conventionally fertilized control, demonstrating that the application of H2O2has the potential to make organic hydroponic fertilization a more viable method in the future.
Brazilian model estimation for SARS-CoV-2 peak contagion (BMESPC)
Authors: Asai Guilherme , Kuroiva André , Terra Manuella Lucca 
Published: January 2021

AbstractWith newer data for SARS-CoV-2 and entering the second wave of contagion required the improvement of the forecasting model, structuring its model to forecast the peak of the first and second contagion wave in Brazil. The Brazilian model estimation for SARS-CoV-2 peak contagion (BMESPC) was structured, capable of estimating the peak of contagion for SARS-CoV-2 in the first and second waves, as the main objective of this work. Using the BMESPC model, it was possible to estimate, with a certain reliability degree, the peak of contagion for the first and second waves in Brazil, with one day difference from the real to the forecast. While at the state level, the calculated confidence interval proved to be more accurate. In this way, it is possible to use BMESPC to forecast the peak of contagion for several regions, provided that the necessary structure and calibration are respected.
Prognostic significance of circRNAs expression in breast carcinoma patients: A meta-analysis
Authors: Zhou Zizhen , Li Xiancai , Liu Dewu 
Published: January 2021

AbstractObjectiveThe aim of our study was to systematically evaluate the prognostic effects of various circrnas and to explore the prognostic value of circRNAs in breast cancer patients.MethodsA systematical search was conducted on PubMed, Scopus, EMBASE, and the Cochrane Library databases. Eligible studies reporting on the association among circRNAs and prognostic values of breast cancer patients were included. Fixed-effects and random effects models were used to calculate the pooled hazard ratio values of overall survival and disease free survival. In addition, funnel plots were used to qualitatively analyze the publication bias.Results28 studies were included in our meta-analysis. The pooled hazard ratio values of overall survival and disease free survival related to different circRNAs expression in breast cancer patients were 1.68 (1.44-1.97), 2.63 (1.95-3.53).We have identified a total of 28 circRNAs including 19 significantly up-regulated expression circRNAs and 9 significantly down-regulated expression circRNAs in BC(breast cancer) patients. Moreover, all of them revealed mechanisms and have the function of promoting or inhibiting the proliferation, metastasis or invasion of breast cancer cells by acting on the corresponding target.ConclusionOverall, specific circRNAs are significantly associated with the prognosis of BC patients and potentially eligible for the prediction of patients survival. It also provides a potential value for clinical decision-making development and may serve as a promising circRNAs-based target therapy waiting for further elucidation.
In vivosuper-resolution track-density imaging for thalamic nuclei identification
Authors: Basile Gianpaolo Antonio , Bertino Salvatore , Bramanti Alessia , Anastasi Giuseppe Pio , Milardi Demetrio , Cacciola Alberto 
Published: January 2021

AbstractThe development of novel techniques for thein vivo, non-invasive visualization and identification of thalamic nuclei has represented a major challenge for human neuroimaging research in the last decades. Thalamic nuclei have important implications in various key aspects of brain physiology and many of them show selective alterations in various neurologic and psychiatric disorders. In addition, both surgical stimulation and ablation of specific thalamic nuclei have been proven to be useful for the treatment of different neuropsychiatric diseases. The present work aimed at describing a novel protocol for histologically-guided delineation of thalamic nuclei based on short-tracks track-density imaging (stTDI), which is an advanced imaging technique that exploits high angular resolution diffusion tractography to obtain super-resolved white matter maps with high anatomical information. We tested this protocol on i) six healthy individual 3T MRI scans from the Human Connectome Project database, and on ii) a group population template reconstructed by averaging 100 unrelated healthy subjects scans from the same repository. We demonstrated that this approach can identify up to 13 distinct thalamic nuclei bilaterally with very high reliability (intraclass correlation coefficient: 0.996, 95% CI: 0.993-0.998; total accumulated overlap: 0.43) and that both subject-based and group-level thalamic parcellation show a fair share of similarity to a recent standard-space histological thalamic atlas. Finally, we showed that stTDI-derived thalamic maps can be successfully employed to study thalamic structural and functional connectivity, and may have potential implications both for basic and translational research, as well as for pre-surgical planning purposes.
Comparing frontal inclination angles measured from digital 3D models and 2D photographs of dry male and female crania from Croatia
Authors: Petaros Anja , Sholts Sabrina , Čavka Mislav , Slaus Mario , Wärmländer Sebastian K.T.S. 
Published: January 2021

ABSTRACTThe frontal bone is one of the sexually dimorphic elements of the human skull that can be used for sex estimation of unidentified human remains. Numerous morphological features of the frontal bone, such as its angle of inclination, maximum anterior projection (glabella), and rounded elevations (frontal eminences) have been shown to differ between males and females. Various approaches have been developed to assess the frontal inclination in particular, and recently a method has been proposed where the angle of the frontal slope is measured from snapshots of digital three-dimensional (3D) models of human crania. However, as 3D-based investigations of skeletal material can be time-consuming and expensive, we here compare measurements of frontal angle inclination from 3D model snapshots to measurements from 2D photographs for a large sample (61 females and 61 males) of dry archaeological crania from medieval Croatia. Although angles measured from 3D snapshots and 2D photographs produced discriminant functions that classified crania by sex with similar accuracy (around 73%), the angles recorded from the 2D photographs were systematically one degree smaller than the angles recorded from the 3D images. Thus, even though both data sets were useful for sex estimation, we conclude that angles measured with the two different techniques should not be combined.
Design of 9-D global chaotic system and its application in secure communication
Authors: Liu Meiting , Yu Wenxin , Wang Junnian , Chen Yu , Bian Yuyan 
Published: January 2021

Purpose
In this paper, a nine-dimensional chaotic system is designed and applied to secure communication.

Design/methodology/approach
Firstly, the equilibrium characteristics, dissipativity, bifurcation diagram and Lyapunov exponent spectrum are used to analyze the relevant characteristics of the proposed nine-dimensional chaotic system. In the analysis of Lyapunov exponential spectrum, when changing the linear parameters, the system shows two states, hyperchaos and chaos. For secure communication, there is a large secret key space. Secondly, C0 complexity and SEcomplexity of the system are analyzed, which shows that the system has sequences closer to random sequences.

Findings
The proposed nine-dimensional system has a large key space and more complex dynamic characteristics

Originality/value
The results show that the proposed nine-dimensional hyperchaotic system has excellent encryption capabilities and can play an important role in the field of secure communication.
Thermal convection and entropy generation of ferrofluid in an enclosure containing a solid body
Authors: Chinnasamy Sivaraj , Priyadharsini S. , Sheremet Mikhail 
Published: January 2021

Purpose
This study/paper aims to deal with thermal convection and entropy production of a ferrofluid in an enclosure having an isothermally warmed solid body placed inside. It should be noted that this research deals with a development of passive cooling system for the electronic devices.

Design/methodology/approach
The domain of interest is a square chamber of size L including a rectangular solid block of sizes l1 and l2. Thermal convection of ferrofluid (water–Fe3O4 nanosuspension) is analyzed within this enclosure. The solid body is considered to be isothermal with temperature Th and also its area is L2/9. The vertical borders are cold with temperature Tc and the horizontal boundaries are adiabatic. The flow driven by temperature gradient in the cavity is two-dimensional. The governing equations, formulated in dimensionless primitive variables with corresponding initial and boundary conditions, are worked out by using the finite volume technique with the semi-implicit method for pressure-linked equations algorithm on a uniformly staggered mesh. The influence of nanoparticles volume fraction, aspect ratio of the solid block and an irreversibility ratio on energy transport and flow patterns are examined for the Rayleigh number Ra = 107.

Findings
The results show that the nanoparticles concentration augments the thermal transmission and the entropy production increases also, while the augmentation of temperature difference results in a diminution of entropy production. Finally, lower aspect ratio has the significant impact on heat transfer, isotherms, streamlines and entropy.

Originality/value
An efficient numerical technique has been developed to solve this problem. The originality of this work is to analyze convective energy transport and entropy generation in a chamber with internal block. To the best of the authors’ knowledge, the effects of irreversibility ratio are scrutinized for the first time. The results would benefit scientists and engineers to become familiar with the analysis of convective heat transfer and entropy production in enclosures with internal isothermal blocks, and the way to predict the heat transfer rate in advanced technical systems, in industrial sectors including transportation, power generation, chemical sectors, electronics, etc.
Assessing leaders’ power limits over followers
Authors: Steinhoff R. Lewis 
Published: January 2021

Purpose
The purpose of this paper is to review research, especially that of John Gaski, that suggests there are limits to the power a leader has over followers, based on how much power followers will accept.

Design/methodology/approach
By first reviewing the existing literature on power, leader–follower attachment, leader–follower distance and followership, an exploration of John Gaski’s (1984) Volume of Power, are challenged. This is accomplished through execution of a phenomenological qualitative research study.

Findings
Survey responses identified 61 themes that were then pared down to six resulting themes, each including positive and negative words (tones) implying variances in responses to leaders. From this, two latent codes emerge: transformational leadership approach; and follower response.

Research limitations/implications
The author determined that power acceptance by followers is not symmetric as exhibited by the willingness to follow a leader in one area but not fully in another area leading to a volume of power that is not a symmetric cube.

Practical implications
The results can provide organizations with insights into individually directed training and education focusing on leader–follower relationships, courageous followership and transformational approaches to leadership.

Originality/value
This research builds on John Gaski’s work regarding follower responses to power. This research presented in this paper supports the hypothesis that follower’s responses are not symmetric.
“Mommy and Me”: raising implicit followership theories
Authors: Hoption Colette , Han Jiashan Mary 
Published: January 2021

PurposeThe purpose of this paper is to examine the antecedents to implicit followership theories (IFTs) and make recommendations for developing positive IFTs. Female transformational parenting is highlighted, showing that although followership is typically associated with one’s role in an organization, its development is not relegated to that context. Accordingly, this paper encourages transformational-parenting training and features activities for current leader-training programs to enlighten trainees about their IFTs.Design/methodology/approachThrough one online and one paper survey, participants self-defined “follower,” rated their female primary caregivers’ transformational leadership during adolescence, reported their IFTs and provided demographic information.FindingsQualitative and quantitative data analyses found that the degree to which female primary caregivers demonstrated transformational leadership related to children’s positive IFTs and positive definitions about followers in young adulthood.Research limitations/implicationsFuture research should test female caregivers’ influence on IFTs at more advanced stages of one’s career, examine their influence over participants’ followership behavior and incorporate external ratings of leadership and followership.Practical implicationsRecommendations for embedding IFTs into transformational-leadership-training programs are provided, falling into the categories of feedback, reflection/introspection and mentoring/coaching. In the spirit of contemporary approaches to leadership, recommendations require trainees to recognize their biases/knowledge of followers and followership and use that knowledge to facilitate collaboration between leaders and followers.Originality/valueFindings spotlight female leadership, an often-overlooked source of power in organizations, and go beyond leader/follower dichotomies by insisting on IFTs awareness and development for both parties.
Students' expectations and social media sharing in adopting augmented reality
Authors: Alamäki Ari , Dirin Amir , Suomala Jyrki 
Published: January 2021

PurposeThis study examines students' emotional responses to augmented reality (AR) applications and their willingness to share on social media. It also compares user experiences of AR and virtual reality (VR).Design/methodology/approachIn line with expectation disconfirmation theory, the study focuses on students' experiences in the post-adoption situation where they had gained actual experiences of AR applications. The participants in this case study included 100 undergraduate students from higher educational institutes.FindingsAugmentation as a value-creating mechanism seems to create surprising emotional reactions, as it created completely new and unexpected experiences for first-time users. This study also shows that positive user experiences increased the students' willingness to share AR content on social media channels. In addition, AR seems to be easier to adopt than does VR with “cardboard-style” VR headsets.Research limitations/implicationsMore research is needed to determine which specific features of AR applications and pedagogical methods create positively surprising emotional experiences that affect rewarding learning experiences and social media sharing.Practical implicationsThe results of this study allow designers and educators to select educational technologies that emotionally engage students to use and share them. Positively surprising emotional experiences are important for rewarding learning experiences. The findings also provide hints on the future preferences of new AR users.Originality/valueThis study created a new understanding of the emotional determinants of AR adoption and sharing on social media.
The development and target market selection influential strategies for Iranian SMEs: empirical study
Authors: Jafarian-Moghaddam Ahmad Reza 
Published: January 2021

Purpose
The financial resources limitation, the difficult conditions for entry into the market and the lack of sufficient funds are the most important problems facing Iranian small and medium enterprises (SMEs). For these reasons, this paper aims to propose an appropriate methodology for formulating the most influential Iranian SMEs development strategies to make it possible to grow and make more income. Then, a framework is developed to precisely determine the target market for Iranian SMEs.

Design/methodology/approach
The paper uses strengths, weaknesses, opportunities and threats (SWOT) analysis; Pareto principle and analysis of the market conditions to propose the development strategies and uses a methodology based on multicriteria decision-making (MCDM) method to determine the target market.

Findings
According to the research results, it is necessary for the Iranian SMEs to follow the brand strengthening, product and market development, enhancing product quality and creating research and development units strategies focusing on the domestic market. The results obtained from the empirical study also indicated that the customer acquisition rate improved from 0.06 to 0.13 per month, and the company's income has a 64% growth in 2016 than the year 2015 through the selection of some public customers as the target market.

Originality/value
Very few studies have been done so far on the formulation methodology of a market entry strategy for SMEs. Studies by researchers imply that no studies have been conducted in Iran in this regard. International studies also mainly focus on the impact of some marketing activities.
Reusing design information: an investigation of the document creation process in service design projects
Authors: Lin Yu-Tzu 
Published: January 2021

PurposeDesign rationale is design information that explains why an entity is designed as it is. This paper investigates how the documentation process and the use of documents in service design projects influence the reuse of design information across projects.Design/methodology/approachThis study analyzes two sets of data collected through interviews and field observation. It first applied Lund's (2004) four elements of documentation process to categorize the collected data. Then it used bottom-up data analysis approach to identify patterns of the documentation process.FindingsThe author speculates designers' focus on certain documents' social aspect instead of material aspect influences how they reuse design information across projects. Some documents are important because they represent a consensus, and some are important because of the document producers rather than its content. The author also found a similarity between economists and service designers by comparing the study results with Harper and Sellen's (1995) findings. Based on the comparison, the author concludes that detailed research reports are easily reusable across design projects. Finally, although the author observed that designers are using templates to explicate design rationale, the created content is not used across projects.Originality/valueThis study identifies six types of documents that are commonly created in service design projects, three types of producer involvement and three types of provisional design outcomes. It also provides two suggestions for designers to reuse design information across service design projects better and two implications for future study.
Mute, mutation, and mutiny: on the work of feminist epistemology
Authors: Calás Marta B. , Smircich Linda 
Published: January 2021

PurposeThis paper aims to bring to the fore the importance of feminist epistemologies in the history of the organization of management studies since the 1980s by following various intellectual moves in the development of feminist theorizing as they cross over to organization studies, including their analytical possibilities for reclaiming historically the voices of major women scholars, especially in doctoral seminars. The paper narrates these epistemological activities by mobilizing and reconsidering from the past to the present, the notions of “unmuting,” “mutating” and “mutiny.” It ends in a reflection addressing the state of business schools at present and why the field of organization and management studies needs “mutiny” now.Design/methodology/approachThe paper adopts a narrative approach in which the voices of its authors appear to be central as they consider and reconsider over time their understanding of “unmuting,” “mutation” and “mutiny” as notions with analytical potential. This approach is influenced by Foucault’s “history of the present” but with contingencies brought about by feminist interpretations. The application of these notions is demonstrated by reclaiming and clarifying the epistemological underpinning in the works of three major women scholars as included in a doctoral seminar: Mary Parker Follett, Edith Penrose and Rosabeth Moss Kanter. These notions are further redeployed for their potential in institutional applications.FindingsAt present, the findings are discursive – if they can be called so, but the main motivation behind this writing is to go beyond discourse in the written sense, and to mobilize other activities, still in the realm of epistemological and scholarly work. These activities would legitimize actual interventions for changing business schools from their current situation as neoliberal entities, which mute understanding of major problems in the world, as well as the voices of most humans and non-humans paying for the foibles of neoliberalism.Originality/valueThe paper demonstrates the necessity of developing approaches for interventions in knowledge producing institutions increasingly limited by neoliberal premises in what can be said and done as legitimate knowledge. In doing this, the paper articulates the importance of keeping history alive to avoid the increasing “forgetfulness” neoliberalization brings about. The paper, in its present form, represents an active act of “remembering”.