bluuebunny/crossref_metadata_2025_split huggingface dataset:
Individual and collective agencies in China's curriculum reform: A case of physics teachers
Authors: Fu Guopeng , Clarke Anthony 
Published: October 2018

AbstractThis study explores how physics teachers in a high school negotiate the relationships between individual and collective agencies in the context of the on‐going curriculum reform in China. Drawing on Bandura's social cognitive theory, the study employs ethnographical methods including observation, interviewing, and the researcher's and teachers’ reflective journaling through the researcher's involvement with various school activities. The findings indicate that collective teacher agency creates a platform for individual teachers’ professional development, a conducive culture for teacher collaboration, and provides concrete examples that individual teachers can constantly refer to, reflect upon, and learn from for reform implementation. The results offer an understanding of the influences underlying physics teachers’ agency deployment as they engage with curriculum reform processes, especially the negotiation between individual and collective agencies. The findings justify a case for preparing physics teachers on how to deploy both individual and collective agencies in the face of the complicated social structures and ultimately shed light on the desired curriculum decentralization in the Chinese school system.
Evaluation of expressive writing for postpartum health: a randomised controlled trial
Authors: Ayers Susan , Crawley Rosalind , Button Susan , Thornton Alexandra , Field Andy P. , Flood Chris , Lee Suzanne , Eagle Andrew , Bradley Robert , Moore Donna , Gyte Gill , Smith Helen 
Published: October 2018

AbstractPregnancy, birth and adjusting to a new baby is a potentially stressful time that can negatively affect the health of women. There is some evidence that expressive writing can have positive effects on psychological and physical health, particularly during stressful periods. The current study aimed to evaluate whether expressive writing would improve women’s postpartum health. A randomized controlled trial was conducted with three conditions: expressive writing (n = 188), a control writing task (n = 213), or normal care (n = 163). Measures of psychological health, physical health and quality of life were measured at baseline (6–12 weeks postpartum), 1 and 6 months later. Ratings of stress were taken before and after the expressive writing task. Intent-to-treat analyses showed no significant differences between women in the expressive writing, control writing and normal care groups on measures of physical health, anxiety, depression, mood or quality of life at 1 and 6 months. Uptake and adherence to the writing tasks was low. However, women in the expressive writing group rated their stress as significantly reduced after completing the task. Cost analysis suggest women who did expressive writing had the lowest costs in terms of healthcare service use and lowest cost per unit of improvement in quality of life. Results suggest expressive writing is not effective as a universal intervention for all women 6–12 weeks postpartum. Future research should examine expressive writing as a targeted intervention for women in high-risk groups, such as those with mild or moderate depression, and further examine cost-effectiveness.Clinical trial registration number ISRCTN58399513 www.isrctn.com
Beyond Formal Access: Organizational Context, Working From Home, and Work–Family Conflict of Men and Women in European Workplaces
Authors: van der Lippe Tanja , Lippényi Zoltán 
Published: October 2018

AbstractWorking from home has become engraved in modern working life. Although advocated as a solution to combine work with family life, surprisingly little empirical evidence supports that it decreases work–family conflict. In this paper we examine the role of a supportive organizational context in making working from home facilitate the combination of work and family. Specifically, we address to what extent perceptions of managerial support, ideal worker culture, as well as the number of colleagues working from home influence how working from home relates to work–family conflict. By providing insight in the role of the organizational context, we move beyond existing research in its individualistic focus on the experience of the work–family interface. We explicitly address gender differences since women experience more work–family conflict than men. We use a unique, multilevel organizational survey, the European Sustainable Workforce Survey conducted in 259 organizations, 869 teams and 11,011 employees in nine countries (Bulgaria, Finland, Germany, Hungary, Netherlands, Portugal, Spain, Sweden, United Kingdom). Results show that an ideal worker culture amplifies the increase in work family conflict due to working from home, but equally for men and women. On the other hand, women are more sensitive to the proportion of colleagues working from home, and the more colleagues are working from home the less conflict they experience.
Revisiting gender differences in ultimatum bargaining: experimental evidence from the US and China
Authors: Li Shuwen , Qin Xiangdong , Houser Daniel 
Published: October 2018

AbstractWe report results from a replication of Solnick (Econ Inq 39(2):189, 2001), which finds using an ultimatum game that, in relation to males, more is demanded from female proposers and less is offered to female responders. We conduct Solnick’s (2001) game using participants from a large US university and a large Chinese university. We find little evidence of gender differences across proposer and responder decisions in both locations.
Common operation, uncommon complication. Bleeding from superior haemorrhoidal artery after minimally invasive procedure for hemorrhoids – a case report
Authors: Rajkumar Janavikula Sankaran , Reddy Aluru Jayakrishna , Radhakrishnan Ravikumar , Rajkumar Anirudh , Akbar Syed , Kollapalayam Raman Dharmendra 
Published: October 2018

AbstractMinimally invasive procedure for hemorrhoids is one of the commonest new wave operations done for prolapsed hemorrhoids. The diameter of the stapled tissue is critical in this operation, and an increase in the same could include more tissue in the anvil, with disastrous results. This is a case report of a post minimally invasive procedure for hemorrhoids bleed, which was refractory to two local oversewing attempts. When the bleeding was massive, an angiogram was obtained. This revealed a pseudo aneurysm of the left superior haemorrhoidal artery, which was embolized, stopping the bleed. The stapler dimensions were studied and the possible cause of the event was arrived at. The specific stapler used had a diameter of 2 mm more than the regular Medtronic and Ethicon staplers, possibly including more of the rectal wall, and the superior haemorrhoidal artery as well. This case report documents a rare and potentially fatal complication of a simple procedure.
The effect of an infographic promotion on research dissemination and readership: A randomized controlled trial
Authors: Huang Simon , Martin Lynsey J. , Yeh Calvin H. , Chin Alvin , Murray Heather , Sanderson William B. , Mohindra Rohit , Chan Teresa M. , Thoma Brent 
Published: October 2018

CLINICIAN’S CAPSULEWhat is known about the topic?Infographics are graphical illustrations of complex ideas that are broadly shared on social media platforms.What did this study ask?What is the effect of a social media strategy using infographics on the readership and dissemination of research articles?What did this study find?Infographic articles were associated with increased Altmetric scores and abstract views, but not full-text views.Why does this study matter to clinicians?The promotion of articles with infographics may increase awareness and dissemination of research findings among clinicians.
Cerebrovascular Injury Following Scorpion Sting and Snake Envenomation: A Case Series
Authors: Mishra Ajay , Binu Aditya , Abraham George , Vanjare Harshad , George Tina , Iyadurai Ramya 
Published: October 2018

AbstractBackgroundNeurological complications following snake and scorpion bite are diverse. Literature regarding patterns of cerebrovascular injury (CVI) and outcomes among these patients is scarce. This is a descriptive study of the clinical profile, brain imaging findings, mechanisms of injury, vascular territory involvement and outcomes of CVI following scorpion and snake envenomation, in a tertiary care center in South India.MethodologyPatients with scorpion sting- and snake envenomation-related complications were retrospectively enrolled. Neuroimaging was performed on five patients with each envenomation, and they were found to have neurological involvement. On imaging, three patients were found to have a CVI. Clinical, radiological parameters and outcomes of these patients were studied. We also performed a review of the literature and analyzed the finding of all the cases.ResultIn all, three patients each had evidence of CVI in imaging. An additional 32 reports of scorpion sting-related CVI and 35 reports of snake envenomation-related CVI were identified from the literature. There was a male predominance among these patients. Mean age of the patients with scorpion sting was 42.8 years as compared with 33 years for the patients with snake envenomation. Features of severe envenomation were present in all patients. Persistently depressed sensorium and new-onset focal neurological deficits were seen in 70% of all patients. Infarcts were seen in 88% of patients with snake envenomation and 53% of patients with a scorpion sting. Mortality was 28% among patients with a scorpion sting as compared with 8% with snake envenomation.ConclusionCerebrovascular injuries are uncommon neurological manifestations following scorpion and snake envenomation. These tend to occur in younger patients. Infarcts are more common than bleeds.
Asymmetric Information, Debt Capacity, and Capital Structure
Authors: Lemmon Michael L. , Zender Jaime F. 
Published: October 2018

Capital structure choice based on costs associated with asymmetric information is examined in order to present a new perspective on the standard pecking order and trade-off theories. In the model, both the face value of debt and the restrictiveness of the associated debt covenants are chosen as part of the financial structure, allowing a more complete characterization of this decision. Debt structure choice balances ex ante adverse selection against ex post moral hazard, providing a natural integration of the pecking order and trade-off theories and the development of interesting empirical implications.
An investigation of the determinants of dialogue navigation in joint activities
Authors: KNUTSEN DOMINIQUE , COL GILLES , LE BIGOT LUDOVIC 
Published: October 2018

ABSTRACTWhen people engage in joint activities together, they use dialogue, and more specifically project markers such asyeah,okay, oruh-huh, to coordinate entrances and exits of projects and subprojects. The purpose of the current study was to examine how two features of the dialogue situation, namely, mental load and face visibility, affect project marker production. Pairs of participants performed a collaborative puzzle game together. Mental load was manipulated through time pressure; visibility was manipulated by allowing the participants to see each other’s face during the task, or not. Dialogues were transcribed and coded for project marker production. Project marker production was found toincreaseunder mental load; this also depended on the role of the speaker in the dyad (Director or Matcher) and on face visibility. This sheds light on the idea that dialogue partners may behavemorecollaboratively when experiencing high levels of mental load, contributing to a better understanding of mental resource allocation in dialogue-based joint activities.
‘Add info and stir’: an institutional ethnographic scoping review of family care-givers’ information work
Authors: Dalmer Nicole K. 
Published: October 2018

AbstractFamily care-givers are increasingly expected to find, understand and use information to meet the complex needs of older adults in their care. A significant number of studies, however, continue to report that care-givers’ information needs are unmet. Following Arksey and O'Malley's scoping review framework, I examined 72 articles for the range and extent of available research on the information work done by family care-givers of community-dwelling older adults living with dementia. To untangle the complex relationship between information and care, this scoping review maps out (a) the ways scholarly literature conceptualises the informational components of family care-givers’ work and (b) the degree to which scholarly research acknowledges these components as work. An institutional ethnography inflection enhanced the scoping review framework, enabling the privileging of lived experiences, questioning of assumptions of language used, attending to authors’ positioning and highlighting care-givers’ information work made invisible throughout the processes of academic research.
Creativity and meaning: including meaning as a component of creative solutions
Authors: Sääksjärvi Maria , Gonçalves Milene 
Published: October 2018

AbstractThe goal of this paper is to examine meaning as a component of creativity. We take a demand-based approach for conceptualizing meaning, and propose that it emerges from user needs instead of emerging from already existing creative solutions. Meaning is proposed as a third component of creativity, alongside novelty and usefulness. We test this proposition in a pre-study, and two empirical studies. In the pre-study, designers define creativity and provide examples of solutions that they deem creative. The results of the pre-study yield a 24-item scale for assessing creativity. Then, we conduct two empirical studies, in which we utilize the created scale for measuring creativity, and for examining the components arising thereof. In the first study, we ask creators (design engineering students) to generate ideas for one of two design briefs. Afterwards, creators were asked to rate their own creations, on the 24-item creativity scale. Here, we find a four-factor solution for creative outcomes, consisting of the dimensions novelty, usefulness, cleverness, and meaning. In the second study, we ask independent evaluators (individuals with related and relevant degrees) to assess the creators’ work on the creativity scale. Here, we find a three-factor solution for creative outcomes, consisting of the dimensions novelty, usefulness, and meaning. In both studies, meaning emerged as a separate component of creativity. Additionally, in both studies, it accounted for variance that was unaccounted for by novelty and usefulness, thereby increasing the overall explanatory power of creative solutions. These findings strongly speak of meaning as a third component of creativity.
Evidence of problem exploration in creative designs
Authors: Studer Jaryn A. , Daly Shanna R. , McKilligan Seda , Seifert Colleen M. 
Published: October 2018

AbstractDesign problems are often presented as structured briefs with detailed constraints and requirements, suggesting a fixed definition. However, past studies have identified the importance of exploring design problems for creative design outcomes. Previous protocol studies of designers has shown that problems can “co-evolve” with the development of solutions during the design process. But to date, little evidence has been provided abouthowdesigners systematically explore presented problems to create better solutions. In this study, we conducted a qualitative analysis of 252 design problems collected from publically available sources, including award-winning product designs and open-source design competitions. This database offers an independent sample of presented problems, designers’ alternative problem descriptions, and innovative solutions. We report the results of this large-scale qualitative analysis aimed at characterizing changes to problems during the design process. Inductive coding was used to identify content patterns in “discovered” problem descriptions, with qualitative codes reliably scored by two independent coders. A total of 32 distinct patterns of problem exploration were identified across designers and presented problems. Each pattern is described in the form of a generalized strategy to guide designers as they explore problem spaces. The exploration patterns identified in this study are the first empirical evidence of problem exploration in independent design problems. Further, the presence of exploration patterns in discovered problems is associated with the selection of the corresponding solution as a challenge finalist. These empirically identified strategies for problem exploration may be useful for computational tools supporting designers.
A systematic approach to assessing novelty, requirement satisfaction, and creativity
Authors: Ranjan B.S.C. , Siddharth L. , Chakrabarti Amaresh 
Published: October 2018

AbstractIt is well-known that creativity is crucial for sustaining a product against competition. Many factors have been proposed in the literature as indicators of creativity, among which outcome-characteristics-based factors are considered the most reliable; among these, the creativity of an outcome is often indicated by two major factors:noveltyandusefulness. Only a few studies address as to how creativity assessment methods and their results can be used during the design process. To systematically address the issue of how to influence creativity of design solutions, the following questions have been framed. (1) Which factors should be used as indicators of creativityconsistentlyacross different phases of the engineering design process? (2) How can creativity be assessed in terms of these factors during the engineering design process? In this work, we considernoveltyandusefulnessas the necessary factors forcreativity. It is found, however, that it is not possible todirectlyassess theusefulnessof outcomes during the design process. Therefore,requirement satisfactionis used as a proxy forusefulness. We propose a creativity assessment method that usesnoveltyandrequirement satisfactionas indicators for creativity; the method can be used for assessing not only complete products but also ideas or concepts, as they evolve through the phases of the design process. The application of the method in design is explained using a detailed example from a case study.
Life history traits of rare Antarctic dragonfishes from the Weddell Sea
Authors: La Mesa Mario , Riginella Emilio , Donato Fortunata , Mazzoldi Carlotta 
Published: October 2018

AbstractThe life history traits of bathydraconids, deep-living fishes distributed all around the Antarctic continent, are poorly known. In particular, very few data are available on the relatively rare generaAkarotaxisandBathydraco. With the aim to fill this gap, sagittal otoliths and gonads were analysed to assess individual age and reproductive features ofAkarotaxis nudiceps(Waite, 1916),Bathydraco macrolepisBoulenger 1907 andBathydraco marriNorman, 1938 collected in the Weddell Sea. Based on the annual growth increment patterns, age estimates ranged between 6–11, 5–11 and 8–11 years forA. nudiceps,B. macrolepisandB. marri, respectively. Most of the gametogenetic processes could be described based on gonad histology for both sexes. Females shared the reproductive features commonly reported in notothenioids, such as group-synchronous ovary development and prolonged gametogenesis. Total fecundity estimates were comparable between the two species ofBathydraco(1500–2500 eggs/female), whereas that ofAkarotaxiswas one order of magnitude smaller (200–250 eggs/female). Consistently, the mean size of late vitellogenic oocytes showed an opposite trend, being 1.6–1.8 mm inBathydracoand 2.2 mm inAkarotaxis.
Effect of adding heterologous versus homologous bovine seminal plasma prior to cryopreservation on bull sperm quality after thawing
Authors: Nongbua Thanapol , Al-Essawe Essraa M , Edman Anders , Johannisson Anders , Morrell Jane M 
Published: October 2018

SummaryThe aim of this study was to investigate the effect of adding homologous or heterologous bovine seminal plasma (SP) to SP-free sperm samples before freezing on sperm quality after thawing. Ejaculates from bulls of known fertility were used as a source of SP. The SP was removed from further aliquots of the same ejaculates by colloid centrifugation to create SP-free sperm samples; the resuspended sperm pellets were treated with homologous or heterologous SP from high or low fertility bulls at 0%, 1% or 5% before freezing. After thawing, sperm quality was evaluated by computer-assisted sperm analysis and flow cytometry for membrane integrity, reactive oxygen species, chromatin structure, mitochondrial membrane potential and protein tyrosine phosphorylation. Data were analysed using Proc MIXED, SAS®. Post-hoc comparisons were adjusted for multiplicity using Tukey’s method. The addition of SP resulted in significant differences in sperm quality, namely velocity class A, Velocity Straight Line (VSL), Velocity Average Path (VAP), Velocity Curved Line (VCL), Amplitude of Lateral Head Displacement (ALH), Hyperactive (HYP), reactive oxygen species (ROS) production and % DNA fragmentation index (DFI) (P<0.05 for each). Although adding 5% homologous SP from high fertility bulls was beneficial to sperm kinematics, 5% heterologous SP from high fertility bulls had a deleterious effect on chromatin integrity and on sperm velocity. In conclusion, adding SP may have either a beneficial effect or a deleterious effect depending on the individuals involved. It might be feasible to use this method to improve sperm quality in some circumstances.
Characteristics of Subpacket Structures in Ground EMIC Wave Observations
Authors: Kakad Bharati , Omura Yoshiharu , Kakad Amar , Upadhyay Aditi , Sinha Ashwini K. 
Published: October 2018

AbstractRecent studies using satellite observations have reported that subpacket structures play an important role in determining the characteristics of electromagnetic ion cyclotron (EMIC) rising/falling tone emissions. The purpose of the present study is to investigate the subpacket structure characteristics in the ground observations of the EMIC waves. It will help us understand the effect of propagation on the EMIC subpacket structures. The induction coil magnetometer observations from Maitri, Antarctica (Geog. 70.77°S, 11.75°E, Geomag. 63.11°S, 53.59°E, L = 5), are used. Six quiet time EMIC events during 2015–2016 are analyzed and their details are presented. Based on their frequency extent in the power spectrum, four (two) events are speculated to be linked with proton (helium) band EMIC waves. For these events, the EMIC rising tone occurrence periods are estimated to be 1.9–6.7 min. Our analysis suggests that the amplitude‐frequency dependence of EMIC subpacket structures is less significantly affected during their prorogation to the ground. Overall, it is found that more than 70% of the time the EMIC waves are right‐handed elliptical polarized. An interesting feature is that the duration of the subpacket structure is found to be directly proportional to the EMIC wave amplitude. The observed characteristics and tendencies followed by EMIC subpacket structures on the ground are examined in the light of existing nonlinear wave theory and they are in good agreement. The EMIC wave amplitudes on the ground are found to be 16–80 times lower than the expected theoretical estimates of the wave amplitudes in the source region.