bluuebunny/crossref_metadata_2025_split huggingface dataset:
Orthography and speech production in children with good or poor reading skills
Authors: Saletta Meredith 
Published: April 2019

AbstractSpeech production is influenced by the orthographic representation of the spoken word. Although previous work has shown that inconsistencies between the word’s sound and spelling may facilitate or disrupt processing (e.g., Alario, Perre, Castel, & Ziegler, 2007; Saletta, Goffman, & Brentari, 2015; Saletta, Goffman, & Hogan, 2016; Ventura, Morais, Pattamadilok, & Kolinsky, 2004), the developmental course of this effect on new readers remains unclear. The current study examines how children’s production of nonwords changes as a function of exposure to the nonwords’ orthography. We tested nonword repetition in 17 children with typical reading skills and 17 children with poor reading skills. Participants heard and repeated nonword stimuli, or read them aloud when the stimuli were written in either a relatively transparent or an opaque spelling. We quantified participants’ segmental accuracy and speech movement stability both before and after their exposure to the nonwords’ orthography. The children improved only in segmental accuracy (and not speech movement stability) and only as a consequence of practice (and not because of exposure to the nonwords’ spellings). Children with poorer reading skills demonstrated a greater change in accuracy from pretest to posttest than children with stronger reading skills. Thus, one’s automaticity in reading and the reorganization of his/her literacy skills throughout development influence speech production.
Frequency effects on first and second language compositional phrase comprehension and production
Authors: Supasiraprapa Sarut 
Published: April 2019

AbstractUsage-based approaches to language acquisition posit that first (L1) and second language (L2) speakers should process more frequent compositional phrases, which have a meaning derivable from word parts, faster than less frequent ones (e.g., Bybee, 2010; Ellis, 2011). Although this prediction has received increasing empirical support, methodological limitations in previous relevant studies include a lack of control of frequencies of subparts of target phrases and scant attention to L2 production. Addressing these limitations, the current study tested phrase frequency effects in both language comprehension and production in two respective experiments, in which adult native English speakers (N= 51) and English L2 learners (N= 52) completed a timed phrasal decision task and an elicited oral production task. Experiment 1 revealed phrase frequency effects in both groups, lending support to usage-based researchers’ proposal that L1 and L2 speakers retain memory of word co-occurrences and that compositional phrase processing reflects an accumulation of statistics in previously encountered input. Experiment 2, however, provided weaker evidence for phrase frequency effects in these participant groups. Based on the results and previous empirical studies, methodological issues that may have impacted frequency effects and implications for future work in this area are discussed.
A Study of Sensor-Fusion Mechanism for Mobile Robot Global Localization
Authors: Chen Yonggang , Chen Weinan , Zhu Lei , Su Zerong , Zhou Xuefeng , Guan Yisheng , Liu Guanfeng 
Published: April 2019

SummaryEstimating the robot state within a known map is an essential problem for mobile robot; it is also referred to “localization”. Even LiDAR-based localization is practical in many applications, it is difficult to achieve global localization with LiDAR only for its low-dimension feedback, especially in environments with repetitive geometric features. A sensor-fusion-based localization system is introduced in this paper, which has the capability of addressing the global localization problem. Both LiDAR and vision sensors are integrated, making use of the rich information introduced by vision sensor and the robustness from LiDAR. A hybrid grid-map is built for global localization, and a visual global descriptor is applied to speed up the localization convergence, combined with a pose refining pipeline for improving the localization accuracy. Also, a trigger mechanism is introduced to solve kidnapped problem and verify the relocalization result. The experiments under different conditions are designed to evaluate the performance of the proposed approach, as well as a comparison with the existing localization systems. According to the experimental results, our system is able to solve the global localization problem, and the sensor-fusion mechanism in our system has an improved performance.
Optimizing Control of Passive Gait Training Exoskeleton Driven by Pneumatic Muscles Using Switch-Mode Firefly Algorithm
Authors: Cao Yu , Huang Jian , Huang Zhangbo , Tu Xikai , Mohammed Samer 
Published: April 2019

SummaryThis paper presents a lower-limb exoskeleton that is actuated by pneumatic muscle actuators (PMAs). This exoskeleton system is composed of the mechanical structures, a treadmill, and a weight support system. With the cooperative work of the three parts, the system aims to assist either the elderly for muscle strengthening by conducting walking activities or the stroke patients during a rehabilitation training program. A mechanism is developed to separate the PMAs from the wearer’s legs to reduce the subject’s physical exertion. Furthermore, considering the difficulty in the modeling of proposed PMAs-driven exoskeleton, a safe and model-free control strategy called proxy-based sliding mode control (PSMC) is used to ensure proper control of the exoskeleton. However, the favorable performances are strongly dependent on the appropriate control parameters, which may be difficult to obtain with blind tuning. Therefore, we propose a global parameters optimization algorithm called switch-mode firefly algorithm (SMFA) to automatically calculate the pre-defined object function and attain the most applicable parameters. Experimental studies are conducted, and the results show the effectiveness of the proposed method.
Output Feedback Hybrid Force/Motion Control for Robotic Manipulators Interacting with Unknown Rigid Surfaces
Authors: Gutiérrez–Giles Alejandro , Arteaga–Pérez Marco 
Published: April 2019

SummaryThe problem of hybrid force and motion control over unknown rigid surfaces when only joint position measurements are available is considered. To overcome this problem, an extended state high-gain observer is designed to simultaneously estimate the contact force and joint velocities. These estimated signals are in turn employed to design a local estimator of the unknown surface gradient. This gradient is utilized to decompose the task space into two orthogonal subspaces: one for force tracking and the other one for motion control. A simple position Proportional Integral Derivative (PID) and force Proportional Integral (PI) controllers are proposed to track the desired signals. Finally, a mathematical analysis of the closed-loop dynamics is carried out, guaranteeing uniform ultimate boundedness of the position and force tracking errors and of the surface gradient estimation error. A numerical simulation is employed to validate the approach in an ideal scenario, while experiments are carried out to test the proposed strategy when uncertainties and unmodeled dynamics are present.
Disinvestment Activities and Candidates in the Health Technology Assessment Community: An Online Survey
Authors: Polisena Julie , Trunk Gerhard , Gutierrez-Ibarluzea Iñaki , Joppi Roberta 
Published: April 2019

AbstractObjectivesAs healthcare decision makers continue to face challenges in health services delivery to their patients, disinvestment programs are being established for a sustainable healthcare system. This study aimed to collect data and information by means of a survey of disinvestment candidates and ongoing disinvestment projects in the health technology assessment (HTA) community.MethodsAn online survey was conducted to collect information on disinvestment candidates and activities from members of the Health Technology Assessment International Disinvestment &amp; Early Awareness Interest Group, the EuroScan International Network and International Network of Agencies for Health Technology Assessment.ResultsAmong the 362 invitees, twenty-four unique responses were received, and almost 70 percent were involved in disinvestment initiatives. The disinvestment candidates identified represented a range of health technologies. Evidence or signaling of clinical ineffectiveness or inappropriate use typically led to the nomination of disinvestment candidates. Health technology assessments and reassessments were usually conducted to evaluate the technology in question, and decisions usually led to the limited use of the technology. Barriers to disinvestment decisions included the strength of interest and advocacy groups, insufficient data for assessments, a systematic decision process and political challenges, while obstacles to their implementation were clinicians’ reluctance and insufficient funding and incentives.ConclusionsThe survey results suggested that disinvestment activities are occurring in the HTA community, especially in the public sector. Future research can further investigate the processes and methods used to reach and implement disinvestment decisions from our survey respondents and explore to form closer ties between the HTA and clinical communities.
The protective effect of melatonin on the in vitro development of yak embryos against hydrogen peroxide-induced oxidative injury
Authors: Peng Wei , Lei Mengtong , Zhang Jun , Zhang Yong 
Published: April 2019

SummaryMelatonin plays a critical role in several types of cells as an antioxidant to protect intracellular molecules from oxidative stress. The anti-oxidation effect of melatonin in yak embryos is largely unknown. We report that melatonin can protect the development of yak preimplantation embryos against oxidative stress induced by hydrogen peroxide (H2O2). Therefore, the quality of blastocysts developed from zygotes exposed to H2O2 was promoted. In addition, we observed that melatonin reduced H2O2-induced intracellular reactive oxygen species (ROS) levels and prevented mitochondrial dysfunction in zygotes. These phenomena revealed the effective antioxidant activity of melatonin to prevent oxidative stress in yak embryos. To determine the underlying mechanism, we further demonstrated that melatonin protected preimplantation embryos from oxidative damage by preserving antioxidative enzymes. Collectively, these results confirmed the anti-oxidation effect of melatonin in yak embryos that significantly improved the quantity and quality of blastocysts in the in vitro production of embryos in yaks.
ON COMMERCIAL GLUTS, OR WHEN THE SAINT-SIMONIANS ADOPTED JEAN-BAPTISTE SAY’S VIEW
Authors: Lutz Adrien 
Published: April 2019

A standard reading in the history of economic thought sets the classical stream of economists drawing upon the influence of Adam Smith (Jean-Baptiste Say, David Ricardo, etc.) in opposition to a “black box” of social thinkers (Louis Blanc, Fourierism, Saint-Simonianism, Jean de Sismondi, Robert Owen). This article, however, argues that, in the first quarter of the nineteenth century, the Saint-Simonians and the liberal economist Jean-Baptiste Say can be seen to adopt convergent views during the famous controversy about commercial gluts.First, we show that the Saint-Simonians and Say both see undersupply and lack of industry as causes of gluts. Next, we assert that their intellectual affinities are also visible in their belief that increasing production remains an appropriate solution for gluts. Finally, this convergence is explained by their common belief in industrialism: Saint-Simonianism is embedded in a French industrialist tradition for which Say can be taken as representative. We argue that their common belief in industry explains their convergence.
What I Learned from 35 Years of Mistakes
Authors: Anderson Kim B. 
Published: April 2019

There is no success without errors. Three keys to success are to learn from your errors, to learn from successful people, and to have mentors or role models whose advice and counsel you may follow to minimize errors. It takes more than knowledge and skill to develop a successful Cooperative Extension program. Programs need to be research-based, part of a team effort, and may involve using research and extension programs conducted and developed by others.The best advice given to me on my first real job was, “The only way you’re not going to make mistakes is if you’re not doing your job” (Laubhan, 1972). Another quote from Henry Ford, “Theonly real mistake is the one from which we learn nothing,” added tomy philosophical base (Ford and Crowther, 1922). Without the wisdom conveyedby Laubhan and Ford, plus Oklahoma State University colleague Phil Kenkel’s (1990) famous quote, “How hard can it be?,” mine could have been just another mediocre career.As a dairy and farm boy from Muskogee County, Oklahoma, with a new Ph.D. in agricultural economics, I set out to educate producers in the area of marketing and risk management. I noticed that attendance at meetings and workshops was good. Participants were interested and listened. They even triedsome of my ideas. Nearly all of them, if not all, reverted back to decisions and techniques they had used before my meetings or workshops.Observant and inquisitive soul that I was, I conducted research to determine who was right. The results indicated that the producers were mostly right! If research-based information and education were to be transferred, and management practices were to be changed, either the subject matter and/or the method of delivery had to change.
Individual differences in the production of referential expressions: The effect of language proficiency, language exposure and executive function in bilingual and monolingual children
Authors: Serratrice Ludovica , De Cat Cécile 
Published: April 2019

AbstractOne hundred and seventy-two English-speaking 5- to 7-year-olds participated in a referential communication task where we manipulated the linguistic mention and the visual presence of a competitor alongside a target referent. Eighty-seven of the children were additionally exposed to a language other than English (bilinguals). We measured children's language proficiency, verbal working memory (WM), cognitive control skills, family SES, and relative amount of cumulative exposure and use of the home language for the bilinguals. Children's use of full Noun Phrases (NPs) to identify a target referent was predicted by the visual presence of a competitor more than by its linguistic mention. Verbal WM and proficiency predicted NP use, while cognitive control skills predicted both the ability to use expressions signalling discourse integration and sensitivity to the presence of a discourse competitor, but not of a visual competitor. Bilingual children were as informative as monolingual children once proficiency was controlled for.
An Application of ASP Theories of Intentions to Understanding Restaurant Scenarios: Insights and Narrative Corpus
Authors: ZHANG QINGLIN , BENTON CHRIS , INCLEZAN DANIELA 
Published: April 2019

AbstractThis paper presents a practical application of Answer Set Programming to the understanding of narratives about restaurants. While this task was investigated in depth by Erik Mueller, exceptional scenarios remained a serious challenge for his script-based story comprehension system. We present a methodology that remedies this issue by modeling characters in a restaurant episode as intentional agents. We focus especially on the refinement of certain components of this methodology in order to increase coverage and performance. We present a restaurant story corpus that we created to design and evaluate our methodology.
A protocol for managing dissociative symptoms in refugee populations
Authors: Chessell Zoe J. , Brady Francesca , Akbar Sameena , Stevens Adele , Young Kerry 
Published: April 2019

AbstractThis article describes a clinical protocol for supporting those presenting with post-traumatic stress disorder (PTSD) and dissociative symptoms, particularly dissociative flashbacks, based on a cross-culturally applicable model. The protocol is discussed from the perspective of working with a refugee and asylum seeker population, although many of the principles will be applicable to clients from any background presenting with these dissociative symptoms. The protocol addresses the assessment and formulation of a client’s dissociative symptoms. It includes guidance on sharing psycho-education with clients regarding the evolutionary function of dissociation and developing practical strategies to monitor and manage dissociative symptoms. The strengths and limitations of this protocol are also discussed.Key learning aimsAfter reading this article people will:(1)Be able to understand a cross-culturally applicable model of dissociation and how it applies to clinical practice when working with clients presenting with dissociative symptoms, particularly dissociative flashbacks, in the context of a diagnosis of PTSD.(2)Be able to assess and formulate dissociative symptoms as part of an overall PTSD formulation.(3)Be able to develop practical strategies for assisting clients in monitoring and managing their dissociative symptoms.(4)Be familiar with adaptations for using this approach with refugee and asylum seeker populations.
Seasonality and symptoms of depression: A systematic review of the literature
Authors: Øverland Simon , Woicik Wojtek , Sikora Lindsey , Whittaker Kristoffer , Heli Hans , Skjelkvåle Fritjof Stein , Sivertsen Børge , Colman Ian 
Published: April 2019

Abstract

Aims
Lay opinions and published papers alike suggest mood varies with the seasons, commonly framed as higher rates of depression mood in winter. Memory and confirmation bias may have influenced previous studies. We therefore systematically searched for and reviewed studies on the topic, but excluded study designs where explicit referrals to seasonality were included in questions, interviews or data collection.

Methods
Systematic literature search in Cochrane database, DARE, Medline, Embase, PsychINFO and CINAHL, reporting according to the PRISMA framework, and study quality assessment using the Newcastle-Ottawa scale. Two authors independently assessed each study for inclusion and quality assessment. Due to large heterogeneity, we used a descriptive review of the studies.

Results
Among the 41 included studies, there was great heterogeneity in regards to included symptoms and disorder definitions, operationalisation and measurement. We also observed important heterogeneity in how definitions of ‘seasons’ as well as study design, reporting and quality. This heterogeneity precluded meta-analysis and publication bias analysis. Thirteen of the studies suggested more depression in winter. The remaining studies suggested no seasonal pattern, seasonality outside winter, or inconclusive results.

Conclusions
The results of this review suggest that the research field of seasonal variations in mood disorders is fragmented, and important questions remain unanswered. There is some support for seasonal variation in clinical depression, but our results contest a general population shift towards lower mood and more sub-threshold symptoms at regular intervals throughout the year. We suggest future research on this issue should be aware of potential bias by design and take into account other biological and behavioural seasonal changes that may nullify or exacerbate any impact on mood.
Shared Genetic Etiology of Hwabyung (Anger Syndrome) and Somatization Symptoms in South Korean Adolescent and Young Adult Twins
Authors: Hur Yoon-Mi , Jin Hee-Jeong , Lee Siwoo , Kim Jong-Woo 
Published: April 2019

AbstractSomatization is known to be more prevalent in Asian than in Western populations. Using a South Korean adolescent and young adult twin sample (N = 1754; 367 monozygotic male, 173 dizygotic male, 681 monozygotic female, 274 dizygotic female and 259 opposite-sex dizygotic twins), the present study aimed to estimate heritability of somatization and to determine common genetic and environmental influences on somatization and hwabyung (HB: anger syndrome). Twins completed self-report questionnaires of the HB symptoms scale and the somatization scale via a telephone interview. The results of the general sex-limitation model showed that 43% (95% CI [36, 50]) of the total variance of somatization was attributable to additive genetic factors, with the remaining variance, 57% (95% CI [50, 64]), being due to individual-specific environmental influences, including measurement error. These estimates were not significantly different between the two sexes. The phenotypic correlation between HB and somatization was .53 (p < .001). The bivariate model-fitting analyses revealed that the genetic correlation between the two symptoms was .68 (95% CI [.59, .77]), while the individual-specific environmental correlation, including correlated measurement error, was .41 (95% CI [.34, .48]). Of the additive genetic factors of 43% that influence somatization, approximately half (20%) were associated with those related to HB, with the remainder being due to genes unique to somatization. A substantial part (48%) of individual environmental variance in somatization was unrelated to HB; only 9% of the environmental variance was shared with HB. Our findings suggest that HB and somatization have shared genetic etiology, but environmental factors that precipitate the development of HB and somatization may be largely independent from each other.
The Efficiency of Coronal Mass Ejection With Different IMF Preconditions on the Production of Megaelectronvolt Electron Content in the Outer Radiation Belt
Authors: Yuan C.‐J. , Zong Q.‐G. 
Published: April 2019

AbstractFifty‐two coronal mass ejections (CMEs) from 2012 to 2017 are categorized into four types according to different interplanetary magnetic field (IMF) preconditions, and behaviors of 1.8‐, 3.4‐, 5.2‐, and 7.7‐MeV electrons are quantitatively investigated using an Radiation Belt Content (RBC) index improved for nondipolar geomagnetic field configuration due to interaction with CMEs. Statistical analyses show that CMEs with continuous southward IMF from upstream of shock front to CME leading edge are the most efficient in the production of megaelectronvolt electron content, with RBC five times larger after shock arrival for 1.8‐MeV channel, seven times larger for 3.4‐MeV channel, and three times larger for 5.2‐MeV channel; the 7.7‐MeV channel also experiences less pronounced enhancements. For CMEs with continuous northward IMF from upstream of shock front to CME leading edge, clear dropouts of RBC are revealed. The depletion is the most significant for 1.8 MeV, and the magnitude of depletion gradually decreases when the electron energy goes higher. It is suggested that the location of magnetopause and plasmapause, and thus magnetopause shadowing and magnetopsheric waves like whistler mode chorus, contributes to the dynamics of megaelectronvolt electrons in the outer radiation belt, with energy dependence, in response to CMEs with different preconditions.