bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Comprehensive Treatment Approach to Address Speech Production and Literacy Skills in School-Age Children with Speech Sound Disorders
Authors: Loudermill Chenell , Greenwell Tamar , Brosseau-Lapré Françoise 
Published: March 2021

AbstractChildren with speech sound disorders (SSDs) represent a large proportion of clients served by school-based speech-language pathologists (SLPs). While considerable evidence is available regarding the identification of SSD in school-age children, there is a paucity of information regarding service delivery aspects of school-based speech therapy, such as frequency of sessions, number of trials, distribution of sessions over time, and format (individual or group intervention) that impacts the ability of SLPs to effectively treat SSD in the schools. School-age children with SSD are at risk for later literacy deficits, and strategically addressing their language and emerging literacy needs in addition to speech production accuracy may lead to increased intelligibility and better educational outcomes. In this article, we discuss the heterogeneity of school-age children with SSD with regard to weaknesses in phonological processing skills and language skills. We summarize the information currently available regarding the aspects of service delivery that contribute to gains in speech production accuracy. We conclude by sharing an example of how school-based SLPs could target speech production, phonological awareness, and morphological awareness in the same session with a child with SSD to maximize gains in speech and literacy skills.
The Communication Benefits of Participation in Camp Dream. Speak. Live.: An Extension and Replication
Authors: Byrd Courtney T. , Winters Katherine L. , Young Megan , Werle Danielle , Croft Robyn L. , Hampton Elizabeth , Coalson Geoffrey , White Andrew , Gkalitsiou Zoi 
Published: March 2021

AbstractSchool-based guidelines often require that treatment focuses on minimizing or eliminating stuttered speech. The purpose of this study was to examine the benefits of explicit training in communication competencies to children who stutter without targeting stuttered speech. Thirty-seven children (ages 4–16) completed Camp Dream. Speak. Live., an intensive group treatment program which targets the psychosocial needs and communication of children who stutter. Outcome measures included the Overall Assessment of the Speaker's Experience of Stuttering (OASES), the Communication Attitude Test for Preschool and Kindergarten Children Who Stutter (KiddyCAT), and the Patient Reported Measurement Information System (PROMIS) Pediatric Peer Relationships Short Form (PROMIS Peer Relationships) and Parent Proxy Peer Relationships Short Form (PROMIS Parent Proxy). Pre- and posttreatment public presentations were rated on nine core verbal and nonverbal communication competencies by a neutral observer. Similar to previous studies, participants demonstrated significant improvements in communication attitudes (OASES) and perceived ability to establish peer relationships (PROMIS Peer Relationships), particularly school-aged participants (ages 7–16). Participants also demonstrated significant improvement in eight of the nine communication competencies. Findings suggest that, in addition to the psychosocial gains of programs such as Camp Dream. Speak. Live., children who stutter benefit from explicit training in communication skills, and these gains are not dependent on the presence of stuttered speech.
Experimental evidence of the importance of multitrophic structure for species persistence
Authors: Bartomeus Ignasi , Saavedra Serguei , Rohr Rudolf P. , Godoy Oscar 
Published: March 2021

Significance
It has been unclear whether understanding how biodiversity is maintained requires us to study species interactions within and across trophic levels simultaneously. Achieving this task remains, however, challenging for practical and theoretical reasons. Here, integrating a simple but detailed experimental plant–pollinator community and a tractable mathematical framework, we show that biodiversity is strongly affected by species competitive interactions among plants and among pollinators, as well as the mutualistic effects between pollinators on plants. Furthermore, we show that experimentally preventing some species to interact can modify the rest of the interactions and affect idiosyncratically the probability of species persistence. These effects are only observable within the empirical evaluation and not with traditional simulation approaches.
Parties and voices
Authors: Luke K. K. 
Published: March 2021

AbstractSince Harvey Sacks’ early observations on collaborative sentence-making, the joint production of turns has become a topic of abiding interest amongst conversation analysts. This paper offers a thematic review of the literature by looking into a number of issues surrounding joint productions, including their forms and interactional uses, major types and sub-types, syntactic and pragmatic contributions, unity and variation across languages, and reasons for its inherent fascination as a conversational practice. By re-examining a number of key concepts and distinctions, including completion, extension, projection, continuation, collaboration, and affiliation/disaffiliation, the paper offers a critical assessment of their perspicuity and usefulness for our understanding of joint production as a general phenomenon (which includes both co-completions and increments). In the second part of the paper, it is suggested that two further concepts be added to the analyst’s toolbox, namely, ‘parties’ (Schegloff 1995) and ‘voices’ (Bakhtin 1981). It is argued that with these notions, one would be better placed to explain the curious status of joint productions as at once collaborative and yet at the same time potentially transformative or even subversive. The overriding goal is conceptual clarification of this field, which hopefully will help place further research on firmer ground.
Understanding the impact of supporting conceptual information design
Authors: Pontis Sheila 
Published: March 2021

Abstract
This article argues that supporting conceptual information design should be a priority as it could better equip
design practitioners for their jobs. Findings from a longitudinal evaluation of a tool – MapCI Cards – using multiple methods to
assess the impact of supporting conceptual design in professional practice are reported here. Internal and external factors
emerged as having an adverse influence on information designers’ responses to conceptual design. Increased conceptual design
awareness and more confident decisions resulted from working with a support tool. Structure, flexibility, and externalizations are
indicated as possible ways to effectively support conceptual information design. The article ends with recommendations for future
support tools.
Linguistic structures in social interaction
Authors: Mushin Ilana , Doehler Simona Pekarek 
Published: March 2021

AbstractIn this introductory paper to the inaugural volume of the journalInteractional Linguistics, we raise the question of what a theory of language might look like once we factor time into explanations of regularities in linguistic phenomena. We first present a historical overview that contextualises interactional approaches within the broader field of linguistics, and then focus on temporality as a key dimension of language use in interaction. By doing so, we discuss issues of emergence and its consequences for constituency and dependency, and of projection and its relation to action formation within and across languages. Based on video-recorded conversational data from French and Garrwa (Australian), we seek to illustrate how the discipline of linguistics can be enriched by attending to the temporal deployment of patterns of language use, and how this may in turn modify what we understand to be language structure.
Nonstatistical behavior of the photoionization of spin–orbit doublets
Authors: Püttner Ralph , Martins Jessica B , Marchenko Tatiana , Travnikova Oksana , Guillemin Renaud , Journel Loïc , Ismail Iyas , Goldsztejn Gildas , Koulentianos Dimitris , Céolin Denis , Rocco Maria Luiza Miranda , Piancastelli Maria Novella , Simon Marc , Keating David A , Rasadi Munasinghe C , Deshmukh Pranawa C , Manson Steven T 
Published: March 2021

Abstract
The photoionization branching ratios of spin–orbit doublets are studied both experimentally and theoretically at energies several keV above threshold. The results show significant relativistic effects for Ar 2p in the autoionizing region below the 1s threshold, and large many-body effects for Xe 3d and 4d in the vicinity of the L-shell thresholds. The branching ratios in Xe are also found to vary significantly over very broad multi-keV energy regions both above and below the inner-shell thresholds. In addition, the Ar 2p study confirms experimentally the decades-old theoretical prediction that the nonresonant branching ratio does not approach the statistical (nonrelativistic) value, and, in fact, progressively diverges from statistical with increasing photon energy.
Vitrification is a spontaneous non-equilibrium transition driven by osmotic pressure
Authors: Wang J Galen , Zia Roseanna N 
Published: March 2021

Abstract
Persistent dynamics in colloidal glasses suggest the existence of a non-equilibrium driving force for structural relaxation during glassy aging. But the implicit assumption in the literature that colloidal glasses form within the metastable state bypasses the search for a driving force for vitrification and glassy aging and its connection with a metastable state. The natural relation of osmotic pressure to number-density gradients motivates us to investigate the osmotic pressure as this driving force. We use dynamic simulation to quench a polydisperse hard-sphere colloidal liquid into the putative glass region while monitoring structural relaxation and osmotic pressure. Following quenches to various depths in volume fraction ϕ (where ϕ
RCP ≈ 0.678 for 7% polydispersity), the osmotic pressure overshoots its metastable value, then decreases with age toward the metastable pressure, driving redistribution of coordination number and interparticle voids that smooths structural heterogeneity with age. For quenches to 0.56 ⩽ ϕ ⩽ 0.58, accessible post-quench volume redistributes with age, allowing the glass to relax into a strong supercooled liquid and easily reach a metastable state. At higher volume fractions, 0.59 ⩽ ϕ < 0.64, this redistribution encounters a barrier that is subsequently overcome by osmotic pressure, allowing the system to relax toward the metastable state. But for ϕ ⩾ 0.64, the overshoot is small compared to the high metastable pressure; redistribution of volume stops as particles acquire contacts and get stuck, freezing the system far from the metastable state. Overall, the osmotic pressure drives structural rearrangements responsible for both vitrification and glassy age-relaxation. The connection of energy, pressure, and structure identifies the glass transition, 0.63 < ϕ
g ⩽ 0.64. We leverage the connection of osmotic pressure to energy density to put forth the mechanistic view that relaxation of structural heterogeneity in colloidal glasses occurs via individual particle motion driven by osmotic pressure, and is a spontaneous energy minimization process that drives the glass off and back to the metastable state.
Durable, magnetic-responsive melamine sponge composite for high efficiency, in situ oil–water separation
Authors: Niu Haifeng , Qiang Zhe , Ren Jie 
Published: March 2021

Abstract
The development of durable and high-performance absorbents for in situ oil–water separation is of critical importance for addressing severe water pollution in daily life as well as for solving accidental large-scale oil spillages. Herein, we demonstrate a simple and scalable approach to fabricate magnetic-responsive superhydrophobic melamine sponges by in situ deposition of PDA coatings and Fe3O4 nanoparticles, followed by surface silanization with low surface energy 1H,1H,2H,2H-perfluorooctyltriethoxysilane (PTOS) layer. The prepared melamine sponge composite (PTOS-Fe3O4@PDA/MF) not only exhibits a very high water contact angle of 165 ± 1.5° and an excellent ability to uptake a variety of oils and organic solvents (e.g. up to 141.1 g/g for chloroform), but also shows robust durability and superior recyclability. The PTOS-Fe3O4@PDA/MF sponge can also efficiently separate oils (or organic solvents) and water, as demonstrated by different model systems including immiscible oil–water solution mixture and miscible water–oil (W/O) emulsion (stabilized by surfactants). Furthermore, the PTOS-Fe3O4@PDA/MF sponge is able to in situ recover organics from water using a peristaltic pump, which gives it significant advantages over other traditional batch processes for oil–water separation. We believe that the PTOS-Fe3O4@PDA/MF sponge provides a very promising material solution to address oil–water separation, especially for the large-scale problems that have been long-time challenges with conventional sorption methods.
Modeling intra-fractional abdominal configuration changes using breathing motion-corrected radial MRI
Authors: Liu Lianli , Johansson Adam , Cao Yue , Kashani Rojano , Lawrence Theodore S , Balter James M 
Published: March 2021

Abstract
Abdominal organ motions introduce geometric uncertainties to gastrointestinal radiotherapy. This study investigated slow drifting motion induced by changes of internal anatomic organ arrangements using a 3D radial MRI sequence with a scan length of 20 min. Breathing motion and cyclic GI motion were first removed through multi-temporal resolution image reconstruction. Slow drifting motion analysis was performed using an image time series consisting of 72 image volumes with a temporal sampling rate of 17 s. B-spline deformable registration was performed to align image volumes of the time series to a reference volume. The resulting deformation fields were used for motion velocity evaluation and patient-specific motion model construction through principal component analysis (PCA). Geometric uncertainties introduced by slow drifting motion were assessed by Hausdorff distances between unions of organs at risk (OARs) at different motion states and reference OAR contours as well as probabilistic distributions of OARs predicted using the PCA model. Thirteen examinations from 11 patients were included in this study. The averaged motion velocities ranged from 0.8 to 1.9 mm min−1, 0.7 to 1.6 mm min−1, 0.6 to 2.0 mm min−1 and 0.7 to 1.4 mm min−1 for the small bowel, colon, duodenum and stomach respectively; the averaged Hausdorff distances were 5.6 mm, 5.3 mm, 5.1 mm and 4.6 mm. On average, a margin larger than 4.5 mm was needed to cover a space with OAR occupancy probability higher than 55%. Temporal variations of geometric uncertainties were evaluated by comparing across four 5 min sub-scans extracted from the full scan. Standard deviations of Hausdorff distances across sub-scans were less than 1 mm for most examinations, indicating stability of relative margin estimates from separate time windows. These results suggested slow drifting motion of GI organs is significant and geometric uncertainties introduced by such motion should be accounted for during radiotherapy planning and delivery.
Rapid rotational magneto-acousto-electrical tomography with filtered back-projection algorithm based on plane waves
Authors: Sun Tong , Hao Penghui , Chin Chien Ting , Deng Dingqian , Chen Tiemei , Chen Yi , Chen Mian , Lin Haoming , Lu Minhua , Gao Yi , Chen Siping , Chang Chunqi , Chen Xin 
Published: March 2021

Abstract
Magneto-acousto-electrical tomography (MAET) is designed to produce conductivity images with high spatial resolution for a conducting object. In a previous study, for an irregular conductor, transverse scanning and rotational methods with a focus transducer were combined to collect complete electrical information. This kind of method, however, is time-consuming because of the transverse scanning procedure. In this study, we proposed a novel imaging method based on plane ultrasound waves and a new aspect of projection in rotational MAET. In the proposed method, we achieved the projection in each rotation angle by using plane waves rather than mechanical scanning of the focus waves along the transverse direction. Thus, the imaging time was significantly saved. To verify the proposed method, we derived a measurement formula containing a lateral integration, which built the relationship between the measurement formula and the projection under each rotation angle. Next, we constructed two different numerical models to compute magneto-acousto-electrical signals by using a finite element method and reconstructed the corresponding conductivity parameter images based on a filtered back-projection algorithm. Then, simulated signals under different signal-to-ratios (6, 20, 40, and 60 dB) were generated to test the performance of the proposed algorithm. To improve the image quality, we further analysed the influence of the filters and the frequency scaling factors embedded in the filtered back-projection algorithm. Moreover, we computed the L2 norm of the error in case of different frequency scaling factors and measurement noises. Finally, we conducted a phantom experiment with a 64-element linear phased array transducer (center frequency of 2.7 MHz) and reconstructed the conductivity parameter images of the circular phantom with an elliptical hole. The experimental results demonstrated the feasibility and time-efficiency of the proposed rapid rotational MAET.
Development and characterization of an LED-based detector for dosimetry in diagnostic radiology
Authors: Damulira Edrine , Yusoff Muhammad Nur Salihin , Omar Ahmad Fairuz , Mohd Taib Nur Hartini 
Published: March 2021

Abstract
Light-emitting diodes (LEDs) could be a potential dosimetry candidate because they are radiation hard, spectrally selective, direct band gap, and low-cost devices. Thus, an LED-based detector prototype was designed and characterized for dosimetry. A 20 × 20 cm2 array of surface mount device LED chips was sandwiched in photovoltaic mode between two intensifying screens to form a dosimetric system. The system was enclosed in a light-tight air cavity using black vinyl tape. The screens converted diagnostic x-ray beams into fluorescent blue light. LEDs, applied in detector mode, converted the fluorescent light into radiation-induced currents. A digital multimeter converted the analog currents into digital voltage signals. Prototype characterization was executed using (a) IEC 61267’s RQR 7 (90 kVp) and RQR 8 (100 kVp) beam qualities, and (b) low (25 mAs) and high (80 mAs) beam quantities. A standard dosimeter probe was simultaneously exposed with the prototype to measure the prototype’s absorbed dose. In all exposures, the x-ray beams were perpendicularly incident on both the dosimeter and prototype, at a fixed source to detector distance-60 cm. The LED array prototype’s minimum detectable dose was 0.139 mGy, and the maximum dose implemented herein was ∼13 mGy. The prototype was 99.18% and 98.64% linearly sensitive to absorbed dose and tube current–time product (mAs), respectively. The system was ±4.69% energy, ±6.8% dose, and ±7.7% dose rate dependent. Two prototype data sets were 89.93% repeatable. We fabricated an ultrathin (5 mm), lightweight (130 g), and a relatively low-cost LED-based dosimetric prototype. The prototype executed a simple, efficient, and accurate real-time dosimetric mechanism. It could thus be an alternative to the current passive dosimetric systems.
Onset detection in surface electromyographic signals across isometric explosive and ramped contractions: a comparison of computer-based methods
Authors: Crotty Evan D , Furlong Laura-Anne M , Hayes Kevin , Harrison Andrew J 
Published: March 2021

Abstract

Objective. Accurate identification of surface electromyography (EMG) muscle onset is vital when examining short temporal parameters such as electromechanical delay. The visual method is considered the ‘gold standard’ in onset detection. Automatic detection methods are commonly employed to increase objectivity and reduce analysis time, but it is unclear if they are sensitive enough to accurately detect EMG onset when relating them to short-duration motor events. Approach. This study aimed to determine: (1) if automatic detection methods could be used interchangeably with visual methods in detecting EMG onsets (2) if the Teager–Kaiser energy operator (TKEO) as a conditioning step would improve the accuracy of popular EMG onset detection methods. The accuracy of three automatic onset detection methods: approximated generalized likelihood ratio (AGLR), TKEO, and threshold-based method were examined against the visual method. EMG signals from fast, explosive, and slow, ramped isometric plantarflexor contractions were evaluated using each technique. Main results. For fast, explosive contractions, the TKEO was the best-performing automatic detection method, with a low bias level (4.7 ± 5.6 ms) and excellent intraclass correlation coefficient (ICC) of 0.993, however with wide limits of agreement (LoA) (−6.2 to +15.7 ms). For slow, ramped contractions, the AGLR with TKEO conditioning was the best-performing automatic detection method with the smallest bias (11.3 ± 32.9 ms) and excellent ICC (0.983) but produced wide LoA (−53.2 to +75.8 ms). For visual detection, the inclusion of TKEO conditioning improved inter-rater and intra-rater reliability across contraction types compared with visual detection without TKEO conditioning. Significance. In conclusion, the examined automatic detection methods are not sensitive enough to be applied when relating EMG onset to a motor event of short duration. To attain the accuracy needed, visual detection is recommended. The inclusion of TKEO as a conditioning step before visual detection of EMG onsets is recommended to improve visual detection reliability.
Features of the EEDF formation in the dusty plasma of the positive column of a glow discharge
Authors: Li Shubo , Rabadanov K M , Bogdanov E A , Kudryavtsev A A , Ashurbekov N A , Yuan Chengxun , Zhou Zhongxiang 
Published: March 2021

Abstract
In this paper, the formation of the electron energy distribution function (EEDF) in the argon dusty plasma of the positive column of glow discharge at low pressure is investigated. A model for calculating EEDF in the local approximation is adapted to find the nonlocal EEDF via the Holstein–Tsendin model. The results show that, contrary to the prevalent opinion in the literature, the presence of dust has little effect on the EEDF up to the limiting values of the density of dust particles that can be injected into the plasma for the considered conditions. It is also shown that, when obtaining the nonlocal EEDF, the spatial profiles of the axial (heating) and radial (ambipolar) fields should be chosen from a self-consistent solution. Additionally, the differences between the local and nonlocal EEDFs increase in the peripheral regions of the discharge due to a sharp decrease of fast electrons in the nonlocal case. Significant changes in the form of the nonlocal EEDF along the radius also lead to noticeable changes in other characteristics of the electrons in this area, especially for those with a large energy threshold (e.g. due to excitation, ionization).