bluuebunny/crossref_metadata_2025_split huggingface dataset:
Seam tracking investigation via striped line laser sensor
Authors: Zou Yanbiao , Li Jinchao , Chen Xiangzhi 
Published: July 2017

Purpose
This paper aims to propose a set of six-axis robot arm welding seam tracking experiment platform based on Halcon machine vision library to resolve the curve seam tracking issue.

Design/methodology/approach
Robot-based and image coordinate systems are converted based on the mathematical model of the three-dimensional measurement of structured light vision and conversion relations between robot-based and camera coordinate systems. An object tracking algorithm via weighted local cosine similarity is adopted to detect the seam feature points to prevent effectively the interference from arc and spatter. This algorithm models the target state variable and corresponding observation vector within the Bayes framework and finds the optimal region with highest similarity to the image-selected modules using cosine similarity.

Findings
The paper tests the approach and the experimental results show that using metal inert-gas (MIG) welding with maximum welding current of 200A can achieve real-time accurate curve seam tracking under strong arc light and splash. Minimal distance between laser stripe and welding molten pool can reach 15 mm, and sensor sampling frequency can reach 50 Hz.

Originality/value
Designing a set of six-axis robot arm welding seam tracking experiment platform with a system of structured light sensor based on Halcon machine vision library; and adding an object tracking algorithm to seam tracking system to detect image feature points. By this technology, this system can track the curve seam while welding.
The impact of leadership coaching on leadership behaviors
Authors: Anthony Erica L. 
Published: July 2017

PurposeLeadership coaching has received increased popularity over the past decade; however, there is a paucity of research that has examined its impact on leader behaviors within organizations. Drawing upon transformational leadership theory, the purpose of this paper is to understand the benefits provided to followers when leaders experience leadership coaching.Design/methodology/approachThis cross-sectional study collected data from 75 mid- to senior-level organizational leaders and 188 followers.FindingsThe results of this study reveal that leadership coaching is positively associated with leaders engaging in individualized consideration toward their followers, and in turn, leaders engage in constructive leadership behaviors (i.e. more delegation and less close supervision).Research limitations/implicationsWhile this study contributes to our understanding of leadership coaching for organizational leaders, it, however, focuses on a specific set of leadership behaviors and does not examine the practices embedded in the coaching process.Practical implicationsLeadership coaching facilitates the leader’s aspiration to provide their followers with more individual support. Organizations, in turn, need to promote more opportunities and practices for this interaction to continue.Originality/valueThis is the first study to empirically demonstrate the relationship between leadership coaching and constructive leadership behaviors.
Leader-member exchanges and psychological contract: testing for interaction effects
Authors: Kasekende Francis 
Published: July 2017

PurposeThe purpose of this paper is to examine the interaction effects of leader-member exchange (LMX) dimensions and how they blend to affect psychological contract in the public service in Uganda.Design/methodology/approachThe authors employ the structural equation model to test a conditional hypothesis.FindingsIt is indicated that the magnitude of effect of affect and professional respect on psychological contract is dependent upon perceived contribution, implying that the predictive power of affect and professional respect on psychological contract increases considerably when perceived contribution increases.Research limitations/implicationsOnly a single-research methodological approach was employed. So, future research through interviews could be undertaken to triangulate the results. Furthermore, future research should be undertaken to examine the multiplicative effects studied in this paper across time.Practical implicationsIn order to increase the perceptions of fulfillment of the psychological contract in the public service in Uganda, managers should always endeavor to identify a viable LMX mix that can add value to expectations that employee and employer have of each other.Originality/valueThis is the first study that focuses on testing the interactive effect of LMX dimensions on psychological contract in Uganda’s public service.
Business model innovation: past research, current debates, and future directions
Authors: Hossain Mokter 
Published: July 2017

Purpose
The purpose of this paper is to provide state-of-the-art knowledge about business model innovation (BMI) and suggest avenues for future research.

Design/methodology/approach
A systematic literature review approach was adopted with thematic analysis being conducted on 92 articles.

Findings
The body of knowledge for this concept is in its infancy and is highly fragmented. This study therefore attempts to consolidate this fragmented knowledge. It reveals dominant themes, establishes coherence, and identifies conflicting arguments in the current literature. It also points out gaps in the research and highlights new directions for research.

Research limitations/implications
This study analyzed articles that were found based on a systematic literature review approach.

Practical implications
This study identifies some fundamental issues that managers need to understand regarding BMI.

Originality/value
The main value of this study lies in its synthesis of the current knowledge of BMI.
The senior management sensemaking paradox
Authors: Abreu Pederezini Gerardo David 
Published: July 2017

PurposeFrom a complexity leadership theory perspective, leadership stops being seen as residing in an individual, and come to be conceived as emergent from the myriad interactions among organizational members. However, in spite of this reconceptualization, organizations still have senior managers (e.g. the CEO) who are supposed to be leading, and thus, the purpose of this paper is to explore, then, who are these senior managers and what challenges emerge for them under a complexity leadership perspective.Design/methodology/approachThis paper reviews first the literature on complexity theory and leadership, and then, conceptually develops an understanding of the challenges that senior managers might face under complexity.FindingsThe main finding and focus of the paper is that, from a complexity perspective, a paradox emerges regarding senior managers. On the one hand, senior managers might need to make sense of their limitations and the unowned essence of the processes that surround them. On the other hand, their subordinates might still insist on portraying senior managers as final causes of all success or failure.Originality/valueThis paper presents a novel way to re-conceptualize senior managers, under a complexity perspective, where they come to be perceived as trapped in a paradox of contradictory sensemaking processes: as they come to find out all that is outside of their control their subordinates insist on making them responsible for everything as if they had control.
Formulating a partnership framework for Egyptian ICT companies
Authors: de Waal André , Habil Dalia S.F. , Goedegebuure Robert 
Published: July 2017

Purpose
Nowadays, it is rare to find an organization that operates in isolation, without the need to partner with other organizations. Partnerships offer firms access to new technologies, markets, and knowledge. During the process of transforming into a high performance organization (HPO), an organization will eventually find itself operating within a bigger value chain. The purpose of this paper is to identify the factors and practices that can help Egyptian ICT companies to become better members in such a partnership, in a way that enables full benefit to be gained from the partnership.

Design/methodology/approach
The study used a questionnaire based on the high performance partnership (HPP) framework that has previously been validated in the Western and Asian contexts. The questionnaire was distributed to seven Egyptian ICT organizations who partnered with each other, after which a exploratory factor analysis (EFA) was performed on the collected data to identify the factors that influence the success of partnerships between Egyptian ICT companies.

Findings
The EFA showed that five (of the original ten) factors from the HPP Framework achieved a high reliability while 47 of the original 54 underlying characteristics applied in the Egyptian ICT context. In addition, these five HPP factors had strong positive relations with the success of the partnership as perceived by partners. Interestingly, the HPO scores of individual partners also had a positive effect on the perceived success of the partnership.

Originality/value
This study fills the lacuna that currently exists in empirical research about organizational performance practices in Egypt. The study also has practical implications, as management of Egyptian ICT companies are now able to undertake focused improvement actions to increase the success of the partnerships into which they enter.
Does size matter? The impact of the size of downsizing on financial health and market valuation
Authors: Carriger Michael 
Published: July 2017

PurposeAlthough the management and financial literature is replete with much research looking at the impact of downsizing on the financial health and market valuation of companies employing this practice, there has been very little attention paid to the size of the downsizing effort and its impact. The purpose of this paper is to try and address this lack by looking at companies that downsized in 2008, considering the relative size of the downsizing, and the ongoing financial health and market valuation of the companies.Design/methodology/approachThe impact of the size or severity of the downsizing event was assessed using various financial measures as well as a measure of market valuation from one to five years after the downsizing event. A data set of 251 companies that were in the Fortune 500 in 2014 and also in the Fortune 500 in 2008, that either did not change or decreased headcount were assessed longitudinally over a five-year period.FindingsFindings indicate that the size or severity of the downsizing did not impact any measures of profitability or efficiency or market valuation, with one exception. The size of the downsizing event was negatively related to return on investment, one year after the downsizing. On the other hand, the size or severity of the downsizing had a positive relationship on the companies’ ability to have enough cash at hand to cover expenses (current ratio) from one to four years after the downsizing.Originality/valueThis work may provide additional support for the “band-aid solution” theory of downsizing, as suggested by Carriger (2016), downsizing may stop the bleeding but does not address the underlying financial or strategic issue leading to the need to downsize. The hope is that this work will better inform scholars and practitioners, providing a more nuanced picture of the impact of downsizing on corporate financial health and market valuation.
Emotions, coping and learning in error situations in the workplace
Authors: Rausch Andreas , Seifried Jürgen , Harteis Christian 
Published: July 2017

PurposeThis paper aims to investigate the complex relationship between emotions, coping approaches and learning in error situations in the workplace. The study also examines the influence of individual error orientation, as well as psychological safety, and team learning behaviour as contextual factors.Design/methodology/approachTo measure emotions, coping and learning from errorsin situ, a semi-standardised error diary was administered. Individual and contextual factors were measured by standard questionnaires. Totally, 22 young employees participated in the study and recordedn= 99 error situations in a three-week diary period.FindingsErrors typically provoked negative emotions, particularly in cases of “public” errors. Negative emotions provoked emotion-focused coping. However, there was no direct effect of emotions on learning. Learning seems to depend primarily on the in-depth analysis of the error, no matter whether the original coping intention is aimed at problem-solving, self-protection or emotion regulation. A quick error correction does not necessarily result in learning. Furthermore, plausible influences of individual and contextual factors were found, but must be interpreted cautiously.Research limitations/implicationsThe small sample size, particularly in person-level analyses, is a major shortcoming of the study.Originality/valueTo overcome shortcomings of common retrospective self-reports such as interviews or questionnaires, this study uses the diary method as an innovative approach to investigate processesin situ.
Accounting for activity development through perspectives in an inbound call centre
Authors: Ianeva Maria , Vacherand-Revel Jacqueline , Licoppe Christian 
Published: July 2017

PurposeThis paper aims to address the methodological and conceptual challenges arising from the use of activity theory as a theoretical framework in empirical studies of work.Design/methodology/approachTo grasp the relationship between situated action and activity development, the authors build upon the concept of perspective and suggest that perspectives are grounded on salient configurations, which are both emergentin situand collectively elaborated cultural resources. Empirical evidence for these theoretical considerations is provided through a two-year ethnographic study of the organizational change and collective activity at an inbound call centre for a number of mutual health insurance companies. This research used several data collection techniques such as ethnographic observation, video recordings and interviews.FindingsThe presented results highlight that seemingly unskilled routine practices such as opening and sorting the mail rely upon a complex set of informational resources that only have “value” and meaning in a broader relational context, that of the activity.Originality/valueThe originality of this paper is the use of salient configurations as a basis for the operationalization of the notion of perspective and open new avenues of thought (and action) on situated work practices as embedded within activities.
Library orientation in blackboard: supporting online and distance learners
Authors: Schrecker Diane L. 
Published: July 2017

Purpose
This paper presents a comprehensive review of the poster session “Library orientation in blackboard: supporting online and distance learners” presented at the Association of College and Research Libraries (ACRL) 2017 conference in Baltimore, Maryland.

Design/methodology/approach
Development of AU Library Student Orientation in Blackboard is discussed from the initial course proposal up to its completion of first year use. Orientation modules are reviewed and include purpose, organization and technology resources utilized to deliver content.

Findings
Complete library orientation information including project timeline, marketing, learning management systems (LMS) usage data, survey and assessment outcomes, video viewing statistics and plans for moving forward are provided.

Practical implications
This paper details steps taken and resources used to develop an online library orientation suitable for any LMS. Project design, orientation module structure and select orientation resources are provided.

Originality/value
This paper addresses the need for academic library orientation to support online and distant learners by delivering a practical library introduction in Blackboard.
Assembly of microbial communities in replicate nutrient‐cycling model ecosystems follows divergent trajectories, leading to alternate stable states
Authors: Pagaling Eulyn , Vassileva Kristin , Mills Catherine G. , Bush Timothy , Blythe Richard A. , Schwarz‐Linek Jana , Strathdee Fiona , Allen Rosalind J. , Free Andrew 
Published: July 2017

SummaryWe studied in detail the reproducibility of community development in replicate nutrient‐cycling microbial microcosms that were set up identically and allowed to develop under the same environmental conditions. Multiple replicate closed microcosms were constructed using pond sediment and water, enriched with cellulose and sulphate, and allowed to develop over several months under constant environmental conditions, after which their microbial communities were characterized using 16S rRNA gene sequencing. Our results show that initially similar microbial communities can follow alternative – yet stable – trajectories, diverging in time in a system size‐dependent manner. The divergence between replicate communities increased in time and decreased with larger system size. In particular, notable differences emerged in the heterotrophic degrader communities in our microcosms; one group of steady state communities was enriched with Firmicutes, while the other was enriched with Bacteroidetes. The communities dominated by these two phyla also contained distinct populations of sulphate‐reducing bacteria. This biomodality in community composition appeared to arise during recovery from a low‐diversity state that followed initial cellulose degradation and sulphate reduction.
Hygiene: microbial strategies to reduce pathogens and drug resistance in clinical settings
Authors: Caselli Elisabetta 
Published: July 2017

SummaryHealthcare‐associated infections (HAIs) are a global concern, affecting all western hospitals, and profoundly impairing the clinical outcome of up to 15% of all hospitalized patients. Persistent microbial contamination of hospital surfaces has been suggested to contribute to HAIs onset, representing a reservoir for hospital pathogens. On the other hand, conventional chemicals‐based sanitation do not prevent recontamination and can select drug‐resistant strains, resulting in over 50% of surfaces persistently contaminated. There is therefore an urgent need for alternative sustainable and effective ways to control pathogens contamination and transmission. Toward this goal, we recently reported that a probiotic‐based sanitation can stably decrease surface pathogens up to 90% more than conventional disinfectants, without selecting resistant species. This paper summarizes some of our most significant results.
Integrated structural biology and molecular ecology of N‐cycling enzymes from ammonia‐oxidizing archaea
Authors: Tolar Bradley B. , Herrmann Jonathan , Bargar John R. , van den Bedem Henry , Wakatsuki Soichi , Francis Christopher A. 
Published: July 2017

SummaryKnowledge of the molecular ecology and environmental determinants of ammonia‐oxidizing organisms is critical to understanding and predicting the global nitrogen (N) and carbon cycles, but an incomplete biochemical picture hinders in vitro studies of N‐cycling enzymes. Although an integrative structural and dynamic characterization at the atomic scale would advance our understanding of function tremendously, structural knowledge of key N‐cycling enzymes from ecologically relevant ammonia oxidizers is unfortunately extremely limited. Here, we discuss the challenges and opportunities for examining the ecology of ammonia‐oxidizing organisms, particularly uncultivated Thaumarchaeota, through (meta)genome‐driven structural biology of the enzymes ammonia monooxygenase (AMO) and nitrite reductase (NirK).
Caloric restriction impacts plasma microRNAs in rhesus monkeys
Authors: Schneider Augusto , Dhahbi Joseph M. , Atamna Hani , Clark Josef P. , Colman Ricki J. , Anderson Rozalyn M. 
Published: July 2017

SummaryCaloric restriction (CR) is one of the most robust interventions shown to delay aging in diverse species, including rhesus monkeys (Macaca mulatta). Identification of factors involved in CR brings a promise of translatability to human health and aging. Here, we show that CR induced a profound change in abundance of circulating microRNAs (miRNAs) linked to growth and insulin signaling pathway, suggesting that miRNAs are involved in CR's mechanisms of action in primates. Deep sequencing of plasma RNA extracts enriched for short species revealed a total of 243 unique species of miRNAs including 47 novel species. Approximately 70% of the plasma miRNAs detected were conserved between rhesus monkeys and humans. CR induced or repressed 24 known and 10 novel miRNA species. Regression analysis revealed correlations between bodyweight, adiposity, and insulin sensitivity for 10 of the CR‐regulated known miRNAs. Sequence alignment and target identification for these 10 miRNAs identify a role in signaling downstream of the insulin receptor. The highly abundant miR‐125a‐5p correlated positively with adiposity and negatively with insulin sensitivity and was negatively regulated by CR. Putative target pathways of CR‐associated miRNAs were highly enriched for growth and insulin signaling that have previously been implicated in delayed aging. Clustering analysis further pointed to CR‐induced miRNA regulation of ribosomal, mitochondrial, and spliceosomal pathways. These data are consistent with a model where CR recruits miRNA‐based homeostatic mechanisms to coordinate a program of delayed aging.
Depressive Syndromes and Scales in the AMDP‐system
Authors: Pietzcker A. , Gebhardt R. 
Published: July 2017

The Association for Methodology and Documentation in Psychiatry was founded in 1965 by a group of psychiatrists from Germany, Switzerland and Austria. It developed a uniform and comprehensive system for the documentation of psychopathological, somatic, and anamnestic findings, the AMP‐System. In 1979 a revised system was introduced, the AMDP‐System.In the AMP‐System there are 5 suggestions as to syndrome scale construction based on analyses of data of psychiatric clinics in Munich (2 samples), in Zurich (1 sample), and in Berlin (2 samples). The corresponding syndromes of the different solutions are highly intercorrelated. In the AMDP‐System final syndrome scales were constructed on the basis of combined samples of the psychiatric clinics of the universities in Munich and in Berlin. The AMDP syndrome scales show a high similarity with the AMP syndrome scales, whereby a good comparability is ensured between older studies using the AMP‐ and present studies using the AMDP‐System.All syndrome scale solutions include, besides 6 or 7 other syndromes, like a paranoid‐hallucinatory and a manic syndrome, two syndromes especially pertinent to the assessment of depressive states: the depressive and the apathy syndromes. The syndromes are described and it is shown how they and other syndromes discriminate different depressive diseases (defined by ICD‐diagnoses).There is a considerable overlap in psychology between the diagnostic groups — in spite of a remarkable good discrimination of these groups by psychopathological syndromes — therefore the patients were classified de novo by cluster analysis in more homogenous groups regarding psychopathology. The results are illustrated by some “depressive” clusters in comparison to depressive diagnostic groups.