bluuebunny/crossref_metadata_2025_split huggingface dataset:
Unexpectedly high piezoelectricity of Sm-doped lead zirconate titanate in the Curie point region
Authors: Seshadri Shruti B. , Nolan Michelle M. , Tutuncu Goknur , Forrester Jennifer S. , Sapper Eva , Esteves Giovanni , Granzow Torsten , Thomas Pam A. , Nino Juan C. , Rojac Tadej , Jones Jacob L. 
Published: March 2018

AbstractLarge piezoelectric coefficients in polycrystalline lead zirconate titanate (PZT) are traditionally achieved through compositional design using a combination of chemical substitution with a donor dopant and adjustment of the zirconium to titanium compositional ratio to meet the morphotropic phase boundary (MPB). In this work, a different route to large piezoelectricity is demonstrated. Results reveal unexpectedly high piezoelectric coefficients at elevated temperatures and compositions far from the MPB. At temperatures near the Curie point, doping with 2 at% Sm results in exceptionally large piezoelectric coefficients of up to 915 pm/V. This value is approximately twice those of other donor dopants (e.g., 477 pm/V for Nb and 435 pm/V for La). Structural changes during the phase transitions of Sm-doped PZT show a pseudo-cubic phase forming ≈50 °C below the Curie temperature. Possible origins of these effects are discussed and the high piezoelectricity is posited to be due to extrinsic effects. The enhancement of the mechanism at elevated temperatures is attributed to the coexistence of tetragonal and pseudo-cubic phases, which enables strain accommodation during electromechanical deformation and interphase boundary motion. This work provides insight into possible routes for designing high performance piezoelectrics which are alternatives to traditional methods relying on MPB compositions.
ZnFeAl-layered double hydroxides/TiO2 composites as photoanodes for photocathodic protection of 304 stainless steel
Authors: Wang Xiu-tong , Ning Xiao-bo , Shao Qian , Ge Sheng-song , Fei Zhi-ying , Lei Jing , Hou Bao-rong 
Published: March 2018

AbstractA series of ZnFeAl-layered double hydroxides/TiO2 (ZnFeAl-LDHs/TiO2) composites are synthesized by a combined anodization and hydrothermal method. The structure, surface morphology, photo absorption and photocathodic protection properties of these samples are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS) and electrochemical tests. The unique structure of the ZnFeAl-LDHs reduces the charge carriers recombination, and the visible photoresponse property increase the light harvesting. The XPS study reveals that the electrons in the ZnFeAl-LDHs travel to TiO2, and the ZnFeAl-LDHs/TiO2 composites generate and transfer more electrons to 304 stainless steel (304SS), and exhibits a better photocathodic protection performance than pure TiO2. In addition, after intermittent visible-light illumination for four days, the photoanode still exhibits good stability and durability.
Accuracy of Matrix-Assisted Laser Desorption Ionization–Time of Flight Mass Spectrometry for Identification of Mycobacteria: a systematic review and meta-analysis
Authors: Cao Yan , Wang Lei , Ma Ping , Fan Wenting , Gu Bing , Ju Shaoqing 
Published: March 2018

AbstractMycobacterium species are a significant cause of morbidity and mortality worldwide. The present study was carried out to systematically evaluate the accuracy of Matrix-assisted laser desorption ionization–time of flight mass spectroscopy (MALDI-TOF MS) for the identification of clinical pathogenic mycobacteria. After a rigid selection process, 19 articles involving 2,593 mycobacteria isolates were included. The pooled result agreed with the reference method identification for 85% of the isolates to genus level, with 71% (95% CI of 69% to 72%) correct to the species level. The MALDI-TOF MS correctly identified 92% of the M.tuberculosis isolates (95% CI of 0.87 to 0.96), and 68% of M. bovisisolates (95% CI of 27% to 100%) to the species level. Mycobacterium tuberculosis complex in solid media with reference strains using augmented database showing more accurate identification. The identifying accuracy rate of bioMérieuxVitek MS was slight higher than Bruker MALDI Biotyper (75% vs 72%). However, opposite results were obtained in identifications of M. fortuitum, M. kansasii, M. marinum, and M. terrae with these two systems. In summary, our results demonstrate that application of MALDI-TOF MS in clinical pathogenic mycobacteria identification is less satisfactory to date. Increasing need for improvement is important especially at species level.
More Than a Story: My Life Came Back to Life
Authors: Strong Katie A. , Lagerwey Mary D. , Shadden Barbara B. 
Published: March 2018

PurposeSocial models of aphasia rehabilitation emphasize the importance of supporting identity renegotiation, which can be accomplished in part through personal narrative construction. The purpose of this study was to examine the experiences of persons who had engaged in a project to coconstruct personal narratives about life with aphasia.MethodQualitative interviews were conducted with 3 participants with aphasia who completed a 4-week personal narrative coconstruction project, which included preadministration and postadministration of the Communication Confidence Rating Scale for Aphasia (Cherney & Babbitt, 2011). Results were analyzed using interpretative phenomenological analysis.ResultsThree themes were revealed: (a)More than a story: It changed my lifevalidated the idea that the narrative coconstruction process supported a positive view of identity; (b)A positive experiencecaptured the participants' enjoyment in coconstructing and sharing their story; (c)Hopeengendered by the coconstruction experience empowered participants with new levels of confidence not only in their communication skills but also in themselves.ConclusionsThis study provided insight into the experience of coconstructing personal narratives using a structured protocol. Participants experienced the project as a positive, meaningful opportunity to actively contemplate their life and look forward. The study has implications for clinicians considering support of identity renegotiation in aphasia rehabilitation.
Response Time Inconsistencies in Object and Action Naming in Anomic Aphasia
Authors: Galletta Elizabeth E. , Goral Mira 
Published: March 2018

Purpose
The effect of repeated naming on both object and action picture naming in individuals with anomic aphasia is explored. We asked whether repeatedly naming the same items leads to improved accuracy and reduced response latency.

Method
Ten individuals with anomic aphasia and 6 healthy adults, 3 young and 3 old, named a set of 27 object pictures and a set of 27 action pictures presented 1 at a time on a computer screen. We examined accuracy and response times (RTs) across the 2 blocks of 10 repeated trials.

Results
Results demonstrated higher accuracy and faster RTs for object than for action naming for all participants, with lower accuracy rates and slower RTs for the people with aphasia (PWA) compared with the healthy individuals, and diverging patterns of change across trials. Unlike the healthy participants, whose RTs decreased across trials, PWA continued to demonstrate variability in response latencies across the trials.

Conclusions
Our preliminary results suggest that measuring RT may be useful in characterizing retrieval difficulty in anomic aphasia and that the retrieval processes in PWA, even in those who experience mild anomia, may be less efficient or different from those processes in neurologically healthy individuals.
Links Between Short-Term Memory and Word Retrieval in Aphasia
Authors: Minkina Irene , Martin Nadine , Spencer Kristie A. , Kendall Diane L. 
Published: March 2018

Purpose
This study explored the relationship between anomia and verbal short-term memory (STM) in the context of an interactive activation language processing model.

Method
Twenty-four individuals with aphasia and reduced STM spans (i.e., impaired immediate serial recall of words) completed a picture-naming task and a word pair repetition task (a measure of verbal STM). Correlations between verbal STM and word retrieval errors made on the picture-naming task were examined.

Results
A significant positive correlation between naming accuracy and verbal span length was found. More intricate verbal STM analyses examined the relationship between picture-naming error types (i.e., semantic vs. phonological) and 2 measures of verbal STM: (a) location of errors on the word pair repetition task and (b) imageability and frequency effects on the word pair repetition task. Results indicated that, as phonological word retrieval errors (relative to semantic) increase, bias toward correct repetition of high-imageability words increases.

Conclusions
Results suggest that word retrieval and verbal STM tasks likely rely on a partially shared temporary linguistic activation process.
Exploring Treatment Fidelity in Persons With Aphasia Autonomously Practicing With Computerized Therapy Materials
Authors: Ball Angel L. , de Riesthal Michael , Steele Richard D. 
Published: March 2018

Purpose
Current computer technologies permit independent practice for people with cognitive–communicative disorders. Previous research has investigated compliance rates and outcome changes but not treatment fidelity per se during practice. Our aim was to examine adherence to procedures (treatment fidelity) and accuracy while persons with aphasia independently practiced word production using interactive, multimodal, user-controlled, word-level icons on computers.

Method
Four persons with aphasia independently practiced single-word production after stimulation via user-initiated interactions in 3 conditions: (I) auditory stimulus with static representational drawing; (II) auditory stimulus with synchronized articulation video; and (III) users' choice between the 2 prior conditions. Sessions were video-recorded for subsequent analysis, which established emergently refined behavioral taxonomies using an iterative, mixed-methods approach.

Results
In independent practice, users only sometimes adhere to modeled behaviors, other times improvising novel behaviors. The latter sometimes co-occurred with successful productions. Differences in success rates were noted between Conditions I and II across behaviors with Condition II generally favored. In Condition III, participants tended to choose the stimulus that resulted in highest success rates.

Conclusions
During independent practice with technology, persons with aphasia do not necessarily comply with clinicians' practice instructions, and treatment fidelity does not determine success. Autonomy and choice in practice may reveal unanticipated dimensions for computerized aphasia treatment.
Describing Phonological Paraphasias in Three Variants of Primary Progressive Aphasia
Authors: Dalton Sarah Grace Hudspeth , Shultz Christine , Henry Maya L. , Hillis Argye E. , Richardson Jessica D. 
Published: March 2018

Purpose
The purpose of this study was to describe the linguistic environment of phonological paraphasias in 3 variants of primary progressive aphasia (semantic, logopenic, and nonfluent) and to describe the profiles of paraphasia production for each of these variants.

Method
Discourse samples of 26 individuals diagnosed with primary progressive aphasia were investigated for phonological paraphasias using the criteria established for the Philadelphia Naming Test (Moss Rehabilitation Research Institute, 2013). Phonological paraphasias were coded for paraphasia type, part of speech of the target word, target word frequency, type of segment in error, word position of consonant errors, type of error, and degree of change in consonant errors.

Results
Eighteen individuals across the 3 variants produced phonological paraphasias. Most paraphasias were nonword, followed by formal, and then mixed, with errors primarily occurring on nouns and verbs, with relatively few on function words. Most errors were substitutions, followed by addition and deletion errors, and few sequencing errors. Errors were evenly distributed across vowels, consonant singletons, and clusters, with more errors occurring in initial and medial positions of words than in the final position of words. Most consonant errors consisted of only a single-feature change, with few 2- or 3-feature changes. Importantly, paraphasia productions by variant differed from these aggregate results, with unique production patterns for each variant.

Conclusions
These results suggest that a system where paraphasias are coded as present versus absent may be insufficient to adequately distinguish between the 3 subtypes of PPA. The 3 variants demonstrate patterns that may be used to improve phenotyping and diagnostic sensitivity. These results should be integrated with recent findings on phonological processing and speech rate. Future research should attempt to replicate these results in a larger sample of participants with longer speech samples and varied elicitation tasks.

Supplemental Materials

https://doi.org/10.23641/asha.5558107
The Relationship Between Confrontation Naming and Story Gist Production in Aphasia
Authors: Richardson Jessica D. , Hudspeth Dalton Sarah Grace , Fromm Davida , Forbes Margaret , Holland Audrey , MacWhinney Brian 
Published: March 2018

PurposeThe purpose of this study was to examine the relationship between picture naming performance and the ability to communicate the gist, or essential elements, of a story. We also sought to determine if this relationship varied according to Western Aphasia Battery–Revised (WAB-R; Kertesz, 2007) aphasia subtype.MethodDemographic information, test scores, and transcripts of 258 individuals with aphasia completing 3 narrative tasks were retrieved from the AphasiaBank database. Narratives were subjected to a main concept analysis to determine gist production. A correlation analysis was used to investigate the relationship between naming scores and main concept production for the whole group of persons with aphasia and for WAB-R subtypes separately.ResultsWe found strong correlations between naming test scores and narrative gist production for the large sample of persons with aphasia. However, the strength of the correlations varied by WAB-R subtype.ConclusionsPicture naming may accurately predict gist production for individuals with Broca's and Wernicke's aphasia, but not for other WAB-R subtypes. Given the current reprioritization of outcome measurement, picture naming may not be an appropriate surrogate measure for functional communication for all persons with aphasia.Supplemental Materialshttps://doi.org/10.23641/asha.5851848
Outgassing on stagnant-lid super-Earths
Authors: Dorn C. , Noack L. , Rozel A. B. 
Published: March 2018

Aims. We explore volcanic CO2-outgassing on purely rocky, stagnant-lid exoplanets of different interior structures, compositions, thermal states, and age. We focus on planets in the mass range of 1–8 M⊕ (Earth masses). We derive scaling laws to quantify first- and second-order influences of these parameters on volcanic outgassing after 4.5 Gyr of evolution.
Methods. Given commonly observed astrophysical data of super-Earths, we identify a range of possible interior structures and compositions by employing Bayesian inference modeling. The astrophysical data comprise mass, radius, and bulk compositional constraints; ratios of refractory element abundances are assumed to be similar to stellar ratios. The identified interiors are subsequently used as input for two-dimensional (2D) convection models to study partial melting, depletion, and outgassing rates of CO2.
Results. In total, we model depletion and outgassing for an extensive set of more than 2300 different super-Earth cases. We find that there is a mass range for which outgassing is most efficient (~2–3 M⊕, depending on thermal state) and an upper mass where outgassing becomes very inefficient (~5–7 M⊕, depending on thermal state). At small masses (below 2–3 M⊕) outgassing positively correlates with planet mass, since it is controlled by mantle volume. At higher masses (above 2–3 M⊕), outgassing decreases with planet mass, which is due to the increasing pressure gradient that limits melting to shallower depths. In summary, depletion and outgassing are mainly influenced by planet mass and thermal state. Interior structure and composition only moderately affect outgassing rates. The majority of outgassing occurs before 4.5 Gyr, especially for planets below 3 M⊕.
Conclusions. We conclude that for stagnant-lid planets, (1) compositional and structural properties have secondary influence on outgassing compared to planet mass and thermal state, and (2) confirm that there is a mass range for which outgassing is most efficient and an upper mass limit, above which no significant outgassing can occur. Our predicted trend of CO2-atmospheric masses can be observationally tested for exoplanets. These findings and our provided scaling laws are an important step in order to provide interpretative means for upcoming missions such as JWST and E-ELT, that aim at characterizing exoplanet atmospheres.
Quantitative PET-Bildgebung für die Dosimetrie an Beispielen von 124I, 86Y, 68Ga und 44Sc
Authors: Stebner Vanessa , Hetkamp Philipp , Binse Ina , Jentzen Walter 
Published: March 2018

ZusammenfassungDie prätherapeutische PET-Dosimetrie gewinnt insbesondere in der Radionuklidtherapie zur Behandlung von Krebserkrankungen immer mehr an Bedeutung. Im Vergleich zu anderen bildgebenden Verfahren der Nuklearmedizin ermöglicht sie eine genauere Bestimmung der Energiedosen pro applizierte Therapieaktivität in Tumoren und Risikoorganen. Zum Beispiel werden die Radionuklide 124I, 86Y und 68Ga zur Optimierung der Radiojodtherapie von Schilddrüsenkarzinomen und zur Therapieplanung von Somatostatinrezeptor-positiven Tumoren eingesetzt. Das kürzlich eingeführte PET-Nuklid 44Sc rückt immer mehr in den Fokus als Ersatz für 68Ga, weil es auch Spätmessungen mit ausreichender Bildqualität erlaubt. Zur Abschätzung der Energiedosis ist eine genaue PET-Quantifizierung der räumlichen und zeitlichen Tracer-Aktivitätsverteilung im Tumor bzw. Organ notwendig. Im Vergleich zum Standard-Radionuklid 18F besitzen 124I, 86Y und 44Sc ungünstige Zerfallseigenschaften. Die Quantifizierung ist dadurch beeinträchtigt. Außerdem werden die Aktivitäten von kleinen Tumoren durch den bekannten Partial-Volumen-Effekt beeinflusst. In dieser Arbeit werden die wesentlichen Faktoren zur PET-Quantifizierung beschrieben, die bei der Anwendung von 124I, 86Y, 68Ga und 44Sc bei der prätherapeutischen Dosimetrie zu berücksichtigen sind. Darüber hinaus werden klinische Dosimetrieprotokolle von ausgewählten Arbeiten und ihre Korrekturverfahren kurz präsentiert.
Polysomnographie bei Kindern: nicht nur an obstruktive Schlafapnoe denken
Authors: Sommer J. Ulrich 
Published: March 2018

Heubi CH et al. Polysomnography in Pediatric Otolaryngology: If Not Obstructive Sleep Apnea, What Is It?
Otolaryngol Head Neck Surg 2017; 157: 1053–1059
Ärzte der Abteilung für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie der Universität von Cincinnati
überprüften die Polysomnographie- Diagnosen von Kindern mit Verdacht auf schlafbezogene Atmungsstörungen
(SBAS) und obstruktiver Schlafapnoe (OSA).
Adherence to quality indicators and surveillance guidelines in the management of Barrett’s esophagus: a retrospective analysis
Authors: Westerveld Donevan , Khullar Vikas , Mramba Lazarus , Ayoub Fares , Brar Tony , Agarwal Mitali , Forde Justin , Chakraborty Joydeep , Riverso Michael , Perbtani Yaseen , Gupte Anand , Forsmark Chris , Draganov Peter , Yang Dennis 
Published: March 2018

Abstract
Background Adherence to quality indicators and surveillance guidelines in the management of Barrett’s esophagus (BE) promotes high-quality, cost-effective care. The aims of this study were (1) to evaluate adherence to standardized classification (Prague Criteria) and systematic (four-quadrant) biopsy protocol, (2) to identify predictors of practice patterns, and (3) to assess adherence to surveillance guidelines for non-dysplastic BE (NDBE).
Methods This was a single-center retrospective study of esophagogastroduodenoscopy (EGD) performed for BE (June 2008 to December 2015). Patient demographics, procedure characteristics, and histology results were obtained from the procedure report-generating database and chart review. Adherence to Prague Criteria and systematic biopsies was based on operative report documentation. Multiple logistic regression analysis was performed to identify predictors of practice patterns. Guideline adherent surveillance EGD was defined as those performed within 6 months of the recommended 3- to 5-year interval.
Results In total, 397 patients (66.5 % male; mean age 60.1 ± 12.5 years) had an index EGD during the study period. Adherence to Prague Criteria and systematic biopsies was 27.4 % and 24.1 %, respectively. Endoscopists who performed therapeutic interventions for BE were more likely to use the Prague Criteria (OR: 3.16; 95 %CI: 1.47 – 6.82; P < 0.01) than those who did not. Longer time in practice was positively associated with adherence to Prague Criteria (OR 1.07; 95 %CI: 1.02 – 1.12; P < 0.01) but with a lower likelihood of performing systematic biopsies (OR 0.91; 95 %CI: 0.85 – 0.97; P < 0.01). More than half (55.6 %) of patients with NDBE underwent surveillance EGD sooner (range 1 – 29 months) than the recommended interval.
Conclusion Adherence to quality indicators and surveillance guidelines in BE is low. Operator characteristics, including experience with endoscopic therapy for BE and time in practice predicted practice pattern. Future efforts are needed to reduce variability in practice and promote high-value care.
Neues Verfahren zur Liposuktion und Fettaugmentation nach Chordektomie
Authors: Haubner Frank , Lorenz Anne , Kummer Peter , Álvarez J. Carmelo Pérez 
Published: March 2018

ZusammenfassungFettaugmentationen der Stimmlippen sind ein etabliertes Verfahren in der Hals-Nasen-Ohrenheilkunde. Aktuell
wird dieses Verfahren auch bei Patienten mit endolaryngealen Defekten nach Laser-Chordektomie diskutiert. Der
Artikel beschreibt diesbezüglich ein minimal-invasives Verfahren zur primären Liposuktion und Fettaugmentation
bei Patienten nach der Resektion eines pT1a Stimmlippenkarzinoms. Dieses neue Verfahren erwies sich als
sichere und technisch einfache Methode zur Rekonstruktion von Stimmlippendefekten. Relevante Komplikationen
wurden nicht beobachtet.
MAPK signaling couples SCF-mediated degradation of translational regulators to oocyte meiotic progression
Authors: Kisielnicka Edyta , Minasaki Ryuji , Eckmann Christian R. 
Published: March 2018

SignificanceRNA-binding proteins (RBPs) are key regulators of gene expression. Notably, germ cells deploy many distinct RBPs to guide their differentiation into haploid gametes. While the RNA-regulatory functions of RBPs are emerging, mechanisms controlling their activities and abundance are poorly understood. Due to its highly refined spatial organization, the gonad ofCaenorhabditis elegansis an excellent model system to study temporal controls of RBP abundance. We used it to uncover a kinase-mediated protein-turnover axis that is built of evolutionarily conserved components, arranged in a unique manner, to couple RBP-target mRNA de-repression with RBP elimination at pachytene exit, a critical stage in early meiosis. This work reveals how meiotic cell cycle progression is coupled to tissue-specific differentiation events via signaling-induced RBP turnover.