bluuebunny/crossref_metadata_2025 huggingface dataset:
Amaranthus rajasekharii (Amaranthaceae), a new species from Kerala (SW-India)

Authors: SINDHU ARYA , VENUGOPALAN NAIR SARADHAMMA ANILKUMAR , KALARIKKAL VISHNU WALSAN , IAMONICO DUILIO
Published: February 2020

A new species of Amaranthus from Kerala (SW-India)—Amaranthus rajasekharii—is described and illustrated. Macro- and micro-morphological descriptions (with SEM analysis of pollen and seed), as well as original photos and drawings were provided. The new species is similar to A. dubius, from which it differs by stem color, inflorescence structure, gynoecium colour, number of stamens, and shape and lenght of tepals and bracts in pistillate flowers, seed ornamentation, and pollen architecture.
Macropelopia (Macropelopia) patagonica, a new Tanypodinae (Diptera: Chironomidae) from the Patagonian Andes
Authors: DA SILVA FABIO LAURINDO , PINHO LUIZ CARLOS
Published: February 2020

One new species of Macropelopia Thienemann (Diptera: Chironomidae: Tanypodinae), M. (Macropelopia) patagonica sp. n. is described and figured as adult male. The specimens were collected from the Patagonian Andes, at San Carlos de Bariloche, Argentina. In addition, the generic diagnosis of Macropelopia is emended for the adult male.
A revision of the unusual feather star genus Atopocrinus with a description of a new species (Echinodermata: Crinoidea)
Authors: MESSING CHARLES G.
Published: February 2020

Atopocrinus ojii new species, is described from deep water off Japan. The genus was previously monotypic and known only from the holotype of A. sibogae A. H. Clark, 1912, from Indonesia. Examination of all known specimens of Atopocrinus has added the following genus-level characters: cirrus sockets arising as tubes along the adoral surface of the centrodorsal, and faint, superficial, suture-like lines that cross the interradial ridges aboral to the centrodorsal/basal suture. The new species exhibits additional novel characters, some of which may be unique (e.g., deep pores around cirrus sockets) and others that may be shared with the incomplete holotype of A. sibogae (e.g., hollow pinnulars). Confusion about the structure of basal ossicles versus basal rays in Atopocrinus and other extant feather stars prompted inclusion of a review of the structure and development of these skeletal components. Video of a live specimen attributed to A. sibogae revealed that the distal half of the arms lack pinnules. The new species also shares several characters in common with Jurassic Spinimetra chesnieri Hess & Thuy, 2017.
Bodotria paraspinifera sp. nov. (Crustacea: Cumacea: Bodotriidae), a new Korean cumacean
Authors: KIM SUNG-HYUN , LEE CHANG-MOK , KIM YOUNG-HYO
Published: February 2020

This study on Korean cumaceans is based on the specimens collected from Geomun Island in Korea. The one species of the Genus Bodotria (Bodotriidae) is identified as new species, Bodotria paraspinifera sp. nov., which is similar to B. spinifera Gamô, 1986 in having the spinulose on body, dorso-lateral carina of carapace well-developed, carapace almost rectangular in dorsal view, carpus of pereopod 1 dilated, pereopod 2 without ischium, and uropod endopod uniarticulate. However, shape of carapace anterior portion, spinulose distribution pattern, and setae patterns and segment ratios of appendages are characteristics which serve to distinguish the new species from B. spinifera. Herein we described with full illustration containing information of the mouthparts for the new species. Also, a key to the Korean Bodotria species is provided.
A new species of the genus Sovia Evans, 1949 from South Central Yunnan, China (Lepidoptera, Hesperiidae)
Authors: HUANG SI-YAO , WANG XIN-YUE , FAN XIAO-LING
Published: February 2020

A new species of the genus Sovia Evans, 1949, viz. S. liuzihaoi Huang & Fan sp. nov. is described from Mt. Ailao, Xinping Yi and Dai Autonomous County, representing a remarkable geographically southward extension of this genus in Yunnan Province, Southwestern China. In general appearance S. liuzihaoi Huang & Fan sp. nov. resembles S. separata magna (Evans, 1932), but in our molecular phylogenetic analyses, this species is clustered with S. lii Xue, 2015. The adults and male genitalia of the new species and related species are illustrated.
Family groups of Diopsoidea and Nerioidea (Diptera: Schizophora)—Definition, history and relationships
Authors: LONSDALE OWEN
Published: February 2020

The Acalyptratae are a diverse, heterogenous assemblage of dozens of families of “higher flies” in the Schizophora (Diptera). There are ten acalyptrate superfamilies, two of which are reviewed and redefined here at the family-group level: Diopsoidea and Nerioidea. The superfamily Diopsoidea includes seven families: Diopsidae (two subfamilies and two tribes), Gobryidae, Megamerinidae, Nothybidae, Psilidae (three subfamilies), Somatiidae and Syringogastridae. The superfamily Nerioidea also includes seven families: Cypselosomatidae, Fergusoninidae, Micropezidae (five subfamilies), Neriidae, Pseudopomyzidae, Tanypezidae and Strongylophthalmyiidae. All 14 families are redescribed, figured and keyed, including notes on subordinate family-level groups. Homologies for external and genitalic characters are established, and the superfamilies and their family-level groups are discussed. A morphological phylogenetic analysis is provided, including representatives from all family-level groups in both ingroup superfamilies, as well as twelve outgroup taxa from five other acalyptrate superfamilies. Both superfamilies were supported as monophyletic, although both the Diopsoidea and its basal branches were supported by highly homoplasious characters and are here only tentatively accepted; a relationship between Diopsidae, Syringogastridae and Megamerinidae is strongly supported. Nerioidea is a well-defined group divided into three lineages, including one containing Pseudopomyzidae, Cypselosomatidae and Fergusoninidae, the latter of which was previously considered to be related to the family Agromyzidae (Opomyzoidea). Diopsoidea and Nerioidea were not found to be related.
Size-Dependent Exciton Energy of Narrow Band Gap Colloidal Quantum Dots in the Finite Depth Square-Well Effective Mass Approximation
Authors: Baskoutas Sotirios , Terzis Andreas F. , Schommers Wolfram
Published: February 2020

Using the potential morphing method within the finite depth square-well effective mass approximation, we calculate the exciton energy of narrow band gap colloidal PbS, PbSe, and InAs quantum dots, assuming a size dependent dielectric function. Concerning the behaviour of the effective
band gap with the quantum dot radius, our theoretical results agree well with the experimental ones, in contrast with other theoretical models.
Spatial Trends of Extreme Precipitation Events in the Paraná River Basin
Authors: Abou Rafee Sameh A. , Freitas Edmilson D. , Martins Jorge A. , Martins Leila D. , Domingues Leonardo M. , Nascimento Janaína M. P. , Machado Carolyne B. , Santos Eliane B. , Rudke Anderson P. , Fujita Thais , Souza Rodrigo A. F. , Hallak Ricardo , Uvo Cintia B.
Published: February 2020

This work presents an analysis of the observed trends in extreme precipitation events in the Paraná River basin (PRB) from 1977 to 2016 (40 yr) based on daily records from 853 stations. The Mann–Kendall test and inverse-distance-weighted interpolation were applied to annual and seasonal precipitation and also for four extreme precipitation indices. The results show that the negative trends (significance at 95% confidence level) in annual and seasonal series are mainly located in the northern and northeastern parts of the basin. In contrast, except in the autumn season, positive trends were concentrated in the southern and southeastern regions of the basin, most notably for annual and summer precipitation. The spatial distributions of the indices of annual maximum 5-day precipitation and number of rainstorms indicate that significant positive trends are mostly located in the south-southeast part of the basin and that significant negative trends are mostly located in the north-northeast part. The index of the annual number of dry days shows that 88% of significant trends are positive and that most of these are located in the northern region of the PRB, which is a region with a high number of consecutive dry days (>90). The simple daily intensity index showed the highest number of stations (263) with mostly positive significant trends.
Impact of the Quasi-Biennial Oscillation on the Northern Winter Stratospheric Polar Vortex in CMIP5/6 Models
Authors: Rao Jian , Garfinkel Chaim I. , White Ian P.
Published: February 2020

Using 16 CMIP5/6 models with a spontaneously generated quasi-biennial oscillation (QBO)-like phenomenon, this study investigates the impact of the QBO on the northern winter stratosphere. Eight of the models simulate a QBO with a period similar to that observed (25–31 months), with other models simulating a QBO period of 20–40 months. Regardless of biases in QBO periodicity, the Holton–Tan relationship can be well simulated in CMIP5/6 models with more planetary wave convergence in the polar stratosphere in easterly QBO winters. This wave polar convergence occurs not only due to the Holton–Tan mechanism, but also in the midlatitude upper stratosphere where an Elissen–Palm (E-P) flux divergence dipole (with poleward E-P flux) is simulated in most models. The wave response in the upper stratosphere appears related to changes in the background circulation through a directly excited meridional–vertical circulation cell above the maximum tropical QBO easterly center. The midlatitude upwelling in this anticlockwise cell is split into two branches, and the north branch descends in the Arctic region and warms the stratospheric polar vortex. Most models underestimate the Arctic stratospheric warming in early winter during easterly QBO. Further analysis suggests that this bias is not due to an overly weak response to a given QBO phase, as the models simulate a realistic response if one focuses on similar QBO phases. Rather, the model bias is due to the too-low frequency of strong QBO winds in the lower stratosphere in early winter simulated by the models.
Consequences of Authoritarian Party Exit and Reinvention for Democratic Competition
Authors: Grzymala-Busse Anna
Published: February 2020

How do the successors to authoritarian ruling parties influence subsequent democratic party competition? The existing literature does not distinguish among these parties, nor does it differentiate among the distinct strategies of their adaptation to the collapse of authoritarian rule. As a result, the impact of these parties on democracy has been unclear and difficult to discern. Yet, using a novel data set with observations from postcommunist Europe, Africa, Asia, and Latin America, I find that the exit of authoritarian ruling parties from power and their subsequent reinvention as committed democratic competitors are powerfully associated with robust democratic party competition. Mixed effects regressions and estimates of treatment effects show that authoritarian exit and reinvention promote the success of democratic party competition.
Public sector accounting contexts in the EPSAS change: a comparative study of Italy and Sweden
Authors: Natalizi Daniele
Published: February 2020

Comparing Italy and Sweden, which are countries with different cultural and accounting traditions, this article focuses on the characteristics of their standard-setting processes for the public sector in order to evaluate their prerequisites for international harmonization. The recent attempt by European bodies to stimulate an international public sector accounting harmonization process, the European Public Sector Accounting Standards programme, requires that each country involved in the process assumes its position, taking into account a number of national factors and conditions. To this end, the research identifies the potential positive factors of a national public sector accounting standard-setting context that are favourable to international harmonization. While both countries differ in some respects, the study discusses how the ideal prerequisites can constitute a positive environment in which to implement international harmonization in the European context.

Points for practitioners

This comparative study identifies conditions to enhance an efficient and reliable national standard-setting process, summarizing the potential positive factors investigated in both countries. It argues that institutional arrangements and specific governance factors (a flexible legal system, efficient auditing, vertical harmonization, an inclusive and participative standard-setting process, and the maturity of accrual accounting) can support key actors in the public sector to react positively to international harmonization, with some emerging scepticism regarding the European Public Sector Accounting Standards programme.
Experimental and numerical behaviors of GFRP laminates under low velocity impact
Authors: Yalkın Hüseyin E , Karakuzu Ramazan , Alpyıldız Tuba
Published: February 2020

The aim of the study is to investigate the behavior of laminated composites under low velocity impact both experimentally and numerically. With this aim, the effects of wide range impact energy values between 10 J and 60 J were evaluated experimentally and numerically for the laminate of [±45/(0/90)2]S oriented unidirectional E-glass as reinforcing material and epoxy resin for matrix material. Different impactor velocities were used to maintain the impact energy values and experimental impact tests were generated with drop weight impact testing machine at room temperature. Numerical simulations were performed using LS-DYNA finite element analysis software with a continuum damage mechanics-based material model MAT058. Contact force between impactor and laminate, and transverse deflection at the center of laminate results were obtained as a function of time and used to plot contact force–time curves, contact force–deflection curves and absorbed energy-impact energy curves. Also, delamination area was examined. Finally, numerical results were compared with experimental results and a good correlation between them was observed.
Incorporation of glass powder and metakaolin as cement partial replacement to improve concrete mechanical properties and increase service life
Authors: Guignone Guilherme Cunha , Vieira Geilma Lima , Zulcão Robson , Degen Maxwell Klein , de Moraes Mittri Sérgio Hémerson , Baptista Gercyr
Published: February 2020

The search for the application of alternative materials, that can partially replace cement and increase the service life of concrete structures, is necessary from the environmental and technological point of view. In this context, the partial substitution of cement in concretes by pozzolanic additions can be performed as ternary mixtures, such as the combined incorporation of glass powder and metakaolin, enabling the reduction of cement consumption and the minimisation of the CO2 emissions and the natural resources consumption. Therefore, this research evaluated the incorporation of glass powder and metakaolin in an isolated and combined way, as partial substitutes for cement in concretes. The compressive strength and the chloride penetration resistance were evaluated by means of electrical resistivity, chloride permeability, steady-state chloride migration test and chloride diffusion test, obtaining the diffusivity and chloride contaminated depth by the colorimetric method. The alkali–silica reactivity test was also conducted, because of the alkali content of the waste glass being higher than the standard requirements. It was concluded that the combined use of ground glass powder and metakaolin in concrete allowed the replacement of up to 20% of the cement, promoting microstructural improvements and increasing properties related to durability and compressive strength already available at 28 days. Furthermore, it increased the estimated service life up to five times, working as an alternative for the reduction of cement use and concrete properties' improvement.
Using Video to Highlight Curriculum-Embedded Opportunities for Student Discourse
Authors: Reisman Abby , Enumah Lisette
Published: February 2020

History classrooms remain stubbornly resistant to instructional change. We explored whether using classroom video to help teachers identify curriculum-embedded opportunities for student discourse improved their understanding and facilitation of document-based historical discussions. We observed a relationship between teachers’ capacity to notice curriculum-embedded opportunities for student discourse in classroom videos and their growth in enacting document-based history discussions. For three of four teachers, the intervention appeared to improve both their analysis of document-based discussion facilitation and their enactment of the practice. Teachers’ incoming proficiency and familiarity with document-based history instruction appeared to inform their experience throughout the intervention. We discuss implications for practice and future research on professional development for history teachers.
Writing for Academic Journals in the Digital Era
Authors: Paltridge Brian
Published: February 2020

The use of digital technologies has transformed the processes of writing for academic journals and the dissemination and preservation of academic work. It has also made the measurement of the impact of publications in academic journals easier and this information more accessible to authors. In this article I discuss some of the ways in which digital technologies have changed writing for academic journals as well as how digital technologies are being used in the submission and review of journal articles. This includes ways in which academic work can be stored and shared, the use of citation management tools, and the sharing of research materials once an article has been accepted for publication. I also give an overview of how digital technologies are being used in the review of journal articles including the use of plagiarism detection software. Issues in online publishing are outlined as is the development of open-access journals and the rise of predatory publishers. Social media and journal publishing and the use of multimodality in research article writing are also discussed.
What Psychology Teachers Should Know About Open Science and the New Statistics
Authors: Morling Beth , Calin-Jageman Robert J.
Published: February 2020

Psychology teachers have likely heard about the “replication crisis” and the “open science movement” in psychology, and they are probably aware that psychologists have proposed new standards for research practice. How should our psychology courses reflect these new standards? We describe several modern practices that have transformed our field and that seem likely to endure: preregistration of studies, transparency of reporting, norms for replication, and the new statistical focus on estimation and precision. We offer suggestions for how to integrate these new practices into psychology courses.
The dynamic interaction between memory and linguistic knowledge in children’s language development: The role of sentence recall
Authors: Acha Joana , Agirregoikoa Ainhize , Barreto Florencia B. , Arranz Enrique
Published: February 2020

The role of working memory (WM) in language acquisition has been widely reported in the developmental literature, but few studies have explored the role of sentence recall in the way WM and related linguistic abilities evolve. This study seeks to explore the organization and development of the memory architecture underlying language using a longitudinal design. A total of 104 children were assessed on verbal WM, phonological short-term memory (pSTM), vocabulary, and sentence recall skills at age 6 and 1 year later at age 7. Structural equation modeling analyses revealed a robust direct predictive effect of pSTM and vocabulary on sentence recall at Time 1 and of verbal WM on sentence recall at Time 2, supporting Baddeley’s WM architecture. Additionally, pSTM and sentence recall abilities at age 6 predicted verbal WM and vocabulary at 7 years, respectively, regardless of autoregressive effects. These results support the notion of the dynamic nature of the language system and suggest a key role of specific memory abilities underlying sentence recall in language development during childhood.
E-books for children with autism: Best read alone or with a therapist?
Authors: Soares Erin , Miller Therese , Ciffone Kathleen , Read Kirsten
Published: February 2020

Children with autism spectrum disorder (ASD) seemingly prefer tablets to other methods of intervention, though professionals posit that a therapist’s presence is beneficial. In this experiment, two unique e-stories were created specifically for children with ASD. Ten children with low- or nonverbal ASD heard each story presented on an iPad; one narrated through the iPad, and one read by a therapist trained in Applied Behavioral Analysis (ABA). The within-participants design enabled researchers to measure the individual benefit of each type of story reading. After hearing each book, participants were tested on their comprehension via multiple choice, sequencing, and open-ended questions. Results indicated that the ideal condition for these young children with low- and nonverbal ASD was the therapist-read condition. These findings suggest that simple stories presented on a rewarding platform, with the minimally intrusive assistance of a therapist, provide young, verbally-challenged children with ASD with a foundation for receiving the benefits of shared storybook reading.
GDPR: Is your consent valid?
Authors: Breen Stephen , Ouazzane Karim , Patel Preeti
Published: February 2020

The General Data Protection Regulation (GDPR) 2018 imposes much greater demands on companies to address the rights of individuals who provide data, that is, Data Subjects. The new law requires a much more transparent approach to gaining consent to process personal data. However, few obvious changes to how consent is gained from Data Subjects to comply with this. Many companies are running the risk of non-compliance with the law if they fail to address how data are obtained and the lack of true consent which Data Subjects currently give to their data being processed. Consent is a complex philosophical principle which relies on the person giving the consent being in full possession of the facts, this article explores the philosophical background of consent and examines the circumstances which were the point of departure for the debate on consent and attempts to develop an understanding of it in the context of the growing influence of information systems and the data-driven economy. The GDPR has gone further than any other regulation or law to date in developing an understanding of consent to address personal data and privacy concerns.
A tissue-based simulation model for cardiopulmonary bypass cannulation/decannulation training
Authors: Luo Xiaokang , Luo Fuliang , Li Bo , Li Bin , Tang Yue , Sun Hansong
Published: February 2020

Background:

Cardiopulmonary bypass is the basis of open heart surgery. Through simulation-based learning, residents may receive structured training of cardiopulmonary bypass techniques. Therefore, we built a high-fidelity, tissue-based simulation model for cardiopulmonary bypass cannulation/decannulation training.

Methods:

The core of the model is a whole block of cadaveric animal heart and lung. The discarded membrane oxygenators are used as blood reservoirs. The tubing and suckers recycled from animal experiments are washed and reused. To set up the model, the cadaveric heart and lung are placed into a container of appropriate size. The “arterial” tubing is connected with a pressure gauge, the distal aorta, the superior vena cava, and arterial cannula, respectively. The “venous” tubing is composed of three independent catheters, respectively, for the practice of venous cannulation, for the connection of sucker and for the practice of placing left atrial/ventricular vent. All tubes are installed on the roller pumps to maintain the correct flow direction. A technician should be responsible for operating the heart–lung machine, clamping and releasing the specific segments of tubing, adjusting the pressure, and cooperating with the trainees to practice.

Results:

Using the simulation model, 18 residents underwent cardiopulmonary bypass techniques training, with an average satisfaction of 8.94 points. The mean score on the overall fidelity of the simulation model assessed by nine experienced cardiothoracic surgeons was 8.67 points.

Conclusion:

The tissue-based simulation model has a certain degree of realism. Cardiac surgery residents can practice necessary cardiopulmonary bypass cannulation/decannulation techniques by this model.
‘It’s not what they were expecting’: A systematic review and narrative synthesis of the role and experience of the hospital palliative care volunteer
Authors: Bloomer Melissa J , Walshe Catherine
Published: February 2020

Background:

Volunteers make a major contribution to palliative care but little is known specifically about hospital palliative care volunteers.

Aim:

The aim of this study was to understand the role and experience of hospital palliative care volunteers.

Design:

Systematic review and narrative synthesis.

Data sources:

CINAHL, Embase, Medline, PsycINFO, PubMed and three dissertation databases were searched from inception to June 2019. A forward and backward search of included papers in key journals was also undertaken. Records were independently assessed against inclusion criteria by authors. Included papers were assessed for quality, but none were excluded.

Results:

In total, 14 papers were included. Hospital palliative care volunteers were mostly female, aged above 40 years, and training varied considerably. Volunteers faced unique challenges in supporting dying patients due to the nature of hospital care, rapid patient turnover and the once-off nature of support. Volunteer roles were diverse, with some providing hands-on care, but most focused on ‘being with’ the dying patient. Volunteers were appreciated for providing psychosocial support, seen as complementary to, rather than replacing the work of health professionals. Given volunteers were often required to work across multiple wards, establishing positive work relationships with health professionals was challenging. Divergent views about whether the volunteer was part of or external to the team impacted volunteers’ experience and perceptions of the value of their contribution.

Conclusion:

Hospital palliative care volunteers face unique challenges in supporting terminally ill patients. Volunteer support in hospital settings is possible and appropriate, if sufficient support is available to mitigate the challenges associated with complex, high-acuity care.
A gut feeling about stroke reveals gut-brain axis’ active role in homeostasis and dysbiosis
Authors: Bonsack Brooke , Jiang Rays HY , Borlongan Cesar V
Published: February 2020

Peripheral inflammatory responses accompany many neurological disorders, including stroke. The gut-brain axis opens new avenues in our understanding of stroke progression and abrogation of secondary cell death. Certain microbiomes, especially those related to inflammation, appear to closely reflect the homeostasis and dysbiosis of both the brain and the gut, suggesting their potential application as biomarkers and therapeutic targets. A paradigm shift from purely central towards incorporating peripheral sequestration of cell death pathways may improve stroke therapeutic outcomes. Recognizing this gut-brain axis as key to disease pathology and treatment is likely to usher innovative approaches in cell-based regenerative medicine for stroke.
Meprin β: A novel regulator of blood–brain barrier integrity
Authors: Gindorf Markus , Storck Steffen E , Ohler Anke , Scharfenberg Franka , Becker-Pauly Christoph , Pietrzik Claus U
Published: February 2020

The metalloprotease meprin β (Mep1b) is capable of cleaving cell-adhesion molecules in different tissues (e.g. skin, kidney and intestine) and is dysregulated in several diseases associated with barrier breakdown (Alzheimer´s disease, kidney disruption, inflammatory bowel disease). In this study, we demonstrate that Mep1b is a novel regulator of tight junction (TJ) composition and blood–brain barrier (BBB) integrity in brain endothelium. In Mep1b-transfected mouse brain endothelial cells (bEnd.3), we observed a reduction of the TJ protein claudin-5, decreased transendothelial electrical resistance (TEER) and an elevated permeability to paracellular diffusion marker [14C]-inulin. Analysis of global Mep1b knock-out (Mep1b−/−) mice showed increased TJ protein expression (claudin-5, occludin, ZO-1) in cerebral microvessels and increased TEER in cultivated primary mouse brain endothelial compared to wild-type (wt) mice. Furthermore, we investigated the IgG levels in cerebrospinal fluid (CSF) and the brain water content as additional permeability markers and detected lower IgG levels and reduced brain water content in Mep1b−/− mice compared to wt mice. Showing opposing features in overexpression and knock-out, we conclude that Mep1b plays a role in regulating brain endothelial TJ-proteins and therefore affecting BBB tightness in vitro and in vivo.
Guidelines for the content and format of PET brain data in publications and archives: A consensus paper
Authors: Knudsen Gitte M , Ganz Melanie , Appelhoff Stefan , Boellaard Ronald , Bormans Guy , Carson Richard E , Catana Ciprian , Doudet Doris , Gee Antony D , Greve Douglas N , Gunn Roger N , Halldin Christer , Herscovitch Peter , Huang Henry , Keller Sune H , Lammertsma Adriaan A , Lanzenberger Rupert , Liow Jeih-San , Lohith Talakad G , Lubberink Mark , Lyoo Chul H , Mann J John , Matheson Granville J , Nichols Thomas E , Nørgaard Martin , Ogden Todd , Parsey Ramin , Pike Victor W , Price Julie , Rizzo Gaia , Rosa-Neto Pedro , Schain Martin , Scott Peter JH , Searle Graham , Slifstein Mark , Suhara Tetsuya , Talbot Peter S , Thomas Adam , Veronese Mattia , Wong Dean F , Yaqub Maqsood , Zanderigo Francesca , Zoghbi Sami , Innis Robert B
Published: February 2020

It is a growing concern that outcomes of neuroimaging studies often cannot be replicated. To counteract this, the magnetic resonance (MR) neuroimaging community has promoted acquisition standards and created data sharing platforms, based on a consensus on how to organize and share MR neuroimaging data. Here, we take a similar approach to positron emission tomography (PET) data. To facilitate comparison of findings across studies, we first recommend publication standards for tracer characteristics, image acquisition, image preprocessing, and outcome estimation for PET neuroimaging data. The co-authors of this paper, representing more than 25 PET centers worldwide, voted to classify information as mandatory, recommended, or optional. Second, we describe a framework to facilitate data archiving and data sharing within and across centers. Because of the high cost of PET neuroimaging studies, sample sizes tend to be small and relatively few sites worldwide have the required multidisciplinary expertise to properly conduct and analyze PET studies. Data sharing will make it easier to combine datasets from different centers to achieve larger sample sizes and stronger statistical power to test hypotheses. The combining of datasets from different centers may be enhanced by adoption of a common set of best practices in data acquisition and analysis.
The Role of Social Circle Perceptions in “False Consensus” about Population Statistics: Evidence from a National Flu Survey
Authors: Bruine de Bruin Wändi , Galesic Mirta , Parker Andrew M. , Vardavas Raffaele
Published: February 2020

Purpose. “False consensus” refers to individuals with (v. without) an experience judging that experience as more (v. less) prevalent in the population. We examined the role of people’s perceptions of their social circles (family, friends, and acquaintances) in shaping their population estimates, false consensus patterns, and vaccination intentions. Methods. In a national online flu survey, 351 participants indicated their personal vaccination and flu experiences, assessed the percentage of individuals with those experiences in their social circles and the population, and reported their vaccination intentions. Results. Participants’ population estimates of vaccination coverage and flu prevalence were associated with their perceptions of their social circles’ experiences, independent of their own experiences. Participants reporting less social circle “homophily” (or fewer social contacts sharing their experience) showed less false consensus and even “false uniqueness.” Vaccination intentions were greater among nonvaccinators reporting greater social circle vaccine coverage. Discussion. Social circle perceptions play a role in population estimates and, among individuals who do not vaccinate, vaccination intentions. We discuss implications for the literature on false consensus, false uniqueness, and social norms interventions.
The McGill Face Database: Validation and Insights Into the Recognition of Facial Expressions of Complex Mental States
Authors: Schmidtmann Gunnar , Jennings Ben J. , Sandra Dasha A. , Pollock Jordan , Gold Ian
Published: February 2020

Current databases of facial expressions represent only a small subset of expressions, usually the basic emotions (fear, disgust, surprise, happiness, sadness, and anger). To overcome these limitations, we introduce a database of pictures of facial expressions reflecting the richness of mental states. A total of 93 expressions of mental states were interpreted by two professional actors, and high-quality pictures were taken under controlled conditions in front and side view. The database was validated in two experiments. First, a four-alternative forced-choice paradigm was employed to test the ability to select a term associated with each expression. Second, the task was to locate each face within a 2-D space of valence and arousal. Results from both experiments demonstrate that subjects can reliably recognize a great diversity of emotional states from facial expressions. While subjects’ performance was better for front view images, the advantage over the side view was not dramatic. This is the first demonstration of the high degree of accuracy human viewers exhibit when identifying complex mental states from only partially visible facial features. The McGill Face Database provides a wide range of facial expressions that can be linked to mental state terms and can be accurately characterized in terms of arousal and valence.
Turning Heads: The Effects of Face View and Eye Gaze Direction on the Perceived Attractiveness of Expressive Faces
Authors: Ho Pik Ki , Newell Fiona N.
Published: February 2020

We investigated whether the perceived attractiveness of expressive faces was influenced by head turn and eye gaze towards or away from the observer. In all experiments, happy faces were consistently rated as more attractive than angry faces. A head turn towards the observer, whereby a full-face view was shown, was associated with relatively higher attractiveness ratings when gaze direction was aligned with face view (Experiment 1). However, preference for full-face views of happy faces was not affected by gaze shifts towards or away from the observer (Experiment 2a). In Experiment 3, the relative duration of each face view (front-facing or averted at 15°) during a head turn away or towards the observer was manipulated. There was benefit on attractiveness ratings for happy faces shown for a longer duration from the front view, regardless of the direction of head turn. Our findings support previous studies indicating a preference for positive expressions on attractiveness judgements, which is further enhanced by the front views of faces, whether presented during a head turn or shown statically. In sum, our findings imply a complex interaction between cues of social attention, indicated by the view of the face shown, and reward on attractiveness judgements of unfamiliar faces.
Preliminary Cross-Sectional Validation of the CROPS 14-Item for Juvenile Offenders
Authors: Edner Benjamin J. , Piegore Ashley L. , Glaser Brian A. , Calhoun Georgia B.
Published: February 2020

The Child Report of Posttraumatic Symptoms (CROPS) is an effective 26-item trauma assessment tool. Research has indicated a 14-item version of the CROPS for juvenile offenders with improved predictive accuracy for detecting trauma exposure among male offenders and commensurate accuracy for female offenders. However, the 14-item scale has yet to be validated for juvenile offenders with an established trauma measure. Cross-sectional retrospective data of 74 adjudicated youth (59.5% male) from the original CROPS 14-item psychometric study sample were used to examine the factor structure, internal consistency, and convergent and divergent validity of the 14-item scale. Findings indicated strong internal consistency and significant correlations with all scales of an established and more extensive trauma measure for children and adolescents. Findings also revealed a CROPS 12-item model explaining 36.9% of variance. Results supported both convergent and divergent validity, suggesting both the CROPS 14-item and 12-item may be used as valid trauma symptom screeners for juvenile offenders.
Do doctors treat themselves differently than their patients? Study on the self-treatment of migraine among German neurologists and pain specialists
Authors: Hansen Leonie C , Gaul Charly , Pogatzki-Zahn Esther , Baron Ralf , Gierthmühlen Janne
Published: February 2020

Aim

To investigate whether the self-treatment of migraine among neurologists and pain specialists corresponds to national medical guidelines and treatment of patients.

Methods

An email cross-sectional survey was sent to members of the German Society for Neurology, German Pain Society and German Migraine and Headache Society containing questions on demographics, professional experience and specialization and – in case participants suffered from migraine – questions about their migraine and its treatment.

Results

175/418 (41.9%) participants suffered from migraine (m: 29.3%; f: 55.2%, 45.9 ± 10.7 years). For acute migraine attacks, 96.6 % of them use a first-line treatment according to the medical guidelines. Seventeen (9.7%) are currently taking a migraine prophylaxis, 52.9% of these use a recommended first-line prophylaxis. In all, 21.7% are not taking a prophylactic treatment despite an indication (based on number of monthly migraine days) for it, due to fear of side-effects, low intensity of migraine attacks and a sufficient effect of acute medication. This group of participants was younger, less experienced and specialized and was mainly employed (vs. self-employed) compared to those taking a prophylaxis. A total of 96.6% reported treating their patients in line with current guidelines; 14.3% would treat themselves differently when they were their own patients.

Conclusion

The self-treatment of acute migraine attacks for the most part complies with the guidelines but, regarding the indication for a prophylaxis, a more divergent treatment approach was observed among younger, less experienced physicians. For the majority of physicians there is no difference between self-treatment and treatment of migraine patients.
Dietary Magnesium, Vitamin D, and Animal Protein Intake and Their Association to the Linear Growth Trajectory of Children from Birth to 24 Months of Age: Results From MAL-ED Birth Cohort Study Conducted in Dhaka, Bangladesh
Authors: Das Subhasish , Sanchez J. Johanna , Alam Ashraful , Haque Ahshanul , Mahfuz Mustafa , Ahmed Tahmeed , Long Kurt Z.
Published: February 2020

Background:

Evidence suggests lack of understanding of the association of specific nutrients with different time points of linear growth trajectory.

Objective:

We investigated the role of dietary macro- and micronutrients on length-for-age z (LAZ) score trajectory of children across first 24 months of their life.

Methods:

The MAL-ED Bangladesh birth cohort study recruited 265 healthy newborn children after birth. The linear growth trajectory of those children was modeled using latent growth curve modeling (LGCM) technique.

Results:

Dietary magnesium intake at 9 to 11 months was positively associated (coefficient β = 0.006, P < .02) with LAZ at 12 months. Animal protein intake at 15 to 17 months, in turn, was positively associated (β = 0.03, P < .03) with LAZ at 18 months. However, vitamin D intake at 15 to 17 months was negatively associated (β = −0.06, P < .02) with LAZ at 18 months. Other micro- and macronutrients did not show any statistically significant association with the linear growth trajectory. We also found that birth weight (β = 0.91, P < .01), treating water (β = 0.35, P < 0.00), and maternal height (β = 3.4, P < .00) were positively associated with intercept. Gender had a significant negative association with the intercept, but a positive association with the slope (β = −0.39, P < .01; β = 0.08, P < .04), respectively. Conversely, birth weight had negative association with the slope (β = −0.12, P < .01).

Conclusions:

Dietary magnesium and animal protein were positively and vitamin D was negatively associated with the linear growth trajectory. Maternal height, birth weight, gender, and treatment of drinking water also played significant roles in directing the trajectory.
Sound and Fury: Digital Vigilantism as a Form of Consumer Voice
Authors: Legocki Kimberly V. , Walker Kristen L. , Kiesler Tina
Published: February 2020

The authors examine consumer activism as a form of power used by individuals when they experience a perceived failure with organizational service performance. Consumer citizens demonstrate the power of their voices through digital vigilantism consisting of injurious and constructive digital content sharing. The authors use agency theory and power concepts to study an instance in which a public service provider breached consumer performance expectations. They study digital responses to the 2017 Charlottesville Unite the Right rally because an independent review found the public service providers culpable. Tweets (n = 73,649) were analyzed utilizing qualitative thematic coding, cluster analysis, and sentiment analysis. Consumer conversations (tweets) during and after the rally yielded five types of digital vigilantism characterized by the following consumer voice clusters: “Shame on them!”, “Hear ye, hear ye…”, “Can you believe this?”, “Let’s get ‘em!”, and “Do the right thing.” The authors also present a new facet of digital vigilantism represented by the pessimistic and optimistic power of consumer voice. Several proactive and reactive responses are presented for policy and practice when responding to digital vigilantism.
Evaluating Radiology Result Communication in the Emergency Department
Authors: O’ Neill Siobhan B. , Vijayasarathi Arvind , Nicolaou Savvas , Walstra Frances , Salamon Noriko , Munk Peter L. , Khosa Faisal
Published: February 2020

Purpose:

To assess the pattern of result communication that occurs between radiologists and referring physicians in the emergency department setting.

Methods:

An institutional review board–approved prospective study was performed at a large academic medical center with 24/7 emergency radiology cover. Emergency radiologists logged information regarding all result-reporting communication events that occurred over a 168-hour period.

Results:

A total of 286 independent result communication events occurred during the study period, the vast majority of which occurred via telephone (232/286). Emergency radiologists spent 10% of their working time communicating results. Similar amounts of time were spent discussing negative and positive cross-sectional imaging examinations. In a small minority of communication events, additional information was gathered through communication that resulted in a change of interpretation from a normal to an abnormal study.

Conclusions:

Effective and efficient result communication is critical to care delivery in the emergency department setting. Discussion regarding abnormal cases, both in person and over the phone, is encouraged. However, in the emergency setting, time spent on routine direct communication of negative examination results in advance of the final report may lead to increased disruptions, longer turnaround times, and negatively impact patient care. In very few instances, does the additional information gained from the communication event result in a change of interpretation?
A Mixed Methods Analysis of Parental Perspectives on Diagnosis and Prognosis of Neonatal Intensive Care Unit Graduates With Cerebral Palsy
Authors: Guttmann Katherine , Flibotte John , DeMauro Sara B. , Seitz Holli
Published: February 2020

This study aimed to evaluate how parents of former neonatal intensive care unit patients with cerebral palsy perceive prognostic discussions following neuroimaging. Parent members of a cerebral palsy support network described memories of prognostic discussions after neuroimaging in the neonatal intensive care unit. We analyzed responses using Linguistic Inquiry and Word Count, manual content analysis, and thematic analysis. In 2015, a total of 463 parents met eligibility criteria and 266 provided free-text responses. Linguistic Inquiry and Word Count analysis showed that responses following neuroimaging contained negative emotion. The most common components identified through the content analysis included outcome, uncertainty, hope/hopelessness, and weakness in communication. Thematic analysis revealed 3 themes: (1) Information, (2) Communication, and (3) Impact. Parents of children with cerebral palsy report weakness in communication relating to prognosis, which persists in parents’ memories. Prospective work to develop interventions to improve communication between parents and providers in the neonatal intensive care unit is necessary.
Sexual Attitudes, Perceptions of Attractiveness, and Level of Coercion Affect Undergraduate Men’s Judgments of Women’s Responses to Sexual and Nonsexual Social Situations
Authors: Nason Erica E. , Yeater Elizabeth A. , Hoyt Tim
Published: February 2020

The aims of this study were to (a) evaluate undergraduate men’s ( N = 108) judgments of the effectiveness of women’s responses to increasingly coercive sexual victimization risk and nonsexual social situations and (b) examine whether individual difference factors (e.g., perceptions of attractiveness, rape empathy) influenced these judgments. As part of a larger study, undergraduate women were video recorded responding to a series of vignettes depicting increasingly coercive sexual and nonsexual social situations. Undergraduate men then rated the effectiveness of these responses in either decreasing risk for sexual victimization (for the sexual victimization risk situations) or increasing the likelihood of achieving a social goal (for the nonsexual social situations), as well as each woman’s physical attractiveness. Multilevel modeling results revealed that both situational-level (i.e., level of coercion) and individual-level factors (i.e., rape empathy, perceived attractiveness of the women, and rape myth acceptance) were associated with men’s judgments of the effectiveness of women’s responses in sexually risky situations. Specifically, responses were rated as less effective in decreasing victimization risk as the level of coercion increased, and men who reported lower rape empathy, lower perceived attractiveness of the woman, and higher rape myth acceptance judged women’s responses as less effective than men who reported higher rape empathy, higher perceived attractiveness, and lower rape myth acceptance. Attractiveness was the only significant predictor of men’s judgments of women’s responses to nonsexual situations, with more attractive women being perceived as more effective. The findings of the current study highlight the importance of understanding the interaction between individual difference variables and situational features in understanding men’s judgments of women’s responses.