bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of Visual Aids for End-of-Life Care on Decisional Capacity of People With Dementia
Authors: Chang Wan-Zu D. , Bourgeois Michelle S. 
Published: December 2019

PurposeThis study evaluated the decision-making capacity of persons with mild and moderate dementia on end-of-life care when using visual aids. A secondary purpose was to learn whether the judges naive to the experimental conditions would rate participants' decisional abilities as better when augmented by visual aids, thereby validating the behavioral changes due to the use of these external support.MethodTwenty older adults with mild and moderate dementia demonstrated Understanding, Expressing a Choice, Reasoning, and Appreciation of 2 medical vignettes under 2 counterbalanced conditions: verbal alone or verbal with visual aids. Transcripts were analyzed and scored to measure decisional skills. Twelve judges rated participants' decisional abilities using a 7-point Likert scale.ResultsParticipants demonstrated significantly better overall decisional capacity in Understanding, Reasoning, and Appreciation when supported by visual aids during the decision-making process. No significant differences between conditions were found in Expressing a Choice, the decisional skill Logical Sequence under Reasoning, and Acknowledgment under Appreciation. Overall, the judges' ratings validated these outcomes; the judges' ratings reflected greater agreement in the visual condition than in the verbal condition.ConclusionsFindings indicated that visual aids (a) improved the decision-making capacity of individuals with dementia in comprehending medical information, employing supportive reasons, and relating this information to his or her own situation and (b) contain the potential for judges who majored or are majoring in speech-language pathology to reach a stronger consensus when determining the decision-making capacity of individuals with dementia.
An ultra-short period rocky super-Earth orbiting the G2-star HD 80653
Authors: Frustagli G. , Poretti E. , Milbourne T. , Malavolta L. , Mortier A. , Singh V. , Bonomo A. S. , Buchhave L. A. , Zeng L. , Vanderburg A. , Udry S. , Andreuzzi G. , Collier-Cameron A. , Cosentino R. , Damasso M. , Ghedina A. , Harutyunyan A. , Haywood R. D. , Latham D. W. , López-Morales M. , Lorenzi V. , Martinez Fiorenzano A. F. , Mayor M. , Micela G. , Molinari E. , Pepe F. , Phillips D. , Rice K. , Sozzetti A. 
Published: December 2019

Ultra-short period (USP) planets are a class of exoplanets with periods shorter than one day. The origin of this sub-population of planets is still unclear, with different formation scenarios highly dependent on the composition of the USP planets. A better understanding of this class of exoplanets will, therefore, require an increase in the sample of such planets that have accurate and precise masses and radii, which also includes estimates of the level of irradiation and information about possible companions. Here we report a detailed characterization of a USP planet around the solar-type star HD 80653 ≡EP 251279430 using the K2 light curve and 108 precise radial velocities obtained with the HARPS-N spectrograph, installed on the Telescopio Nazionale Galileo. From the K2 C16 data, we found one super-Earth planet (Rb = 1.613 ± 0.071 R⊕) transiting the star on a short-period orbit (Pb = 0.719573 ± 0.000021 d). From our radial velocity measurements, we constrained the mass of HD 80653 b to Mb = 5.60 ± 0.43 M⊕. We also detected a clear long-term trend in the radial velocity data. We derived the fundamental stellar parameters and determined a radius of R⋆ = 1.22 ± 0.01 R⊙ and mass of M⋆ = 1.18 ± 0.04 M⊙, suggesting that HD 80653 has an age of 2.7 ± 1.2 Gyr. The bulk density (ρb = 7.4 ± 1.1 g cm−3) of the planet is consistent with an Earth-like composition of rock and iron with no thick atmosphere. Our analysis of the K2 photometry also suggests hints of a shallow secondary eclipse with a depth of 8.1 ± 3.7 ppm. Flux variations along the orbital phase are consistent with zero. The most important contribution might come from the day-side thermal emission from the surface of the planet at T ~ 3480 K.
A dusty benchmark brown dwarf near the ice line of HD 72946
Authors: Maire A.-L. , Baudino J.-L. , Desidera S. , Messina S. , Brandner W. , Godoy N. , Cantalloube F. , Galicher R. , Bonnefoy M. , Hagelberg J. , Olofsson J. , Absil O. , Chauvin G. , Henning T. , Langlois M. 
Published: December 2019

Context. HD 72946 is a bright and nearby solar-type star hosting a low-mass companion at long period (P ∼ 16 yr) detected with the radial velocity (RV) method. The companion has a minimum mass of 60.4 ± 2.2 MJ and might be a brown dwarf. Its expected semi-major axis of ∼243 mas makes it a suitable target for further characterization with high-contrast imaging, in particular to measure its inclination, mass, and spectrum and thus definitely establish its substellar nature.
Aims. We aim to further characterize the orbit, atmosphere, and physical nature of HD 72946B.
Methods. We present high-contrast imaging data in the near-infrared with the Spectro-Polarimetric High-contrast Exoplanet REsearch (SPHERE) instrument. We also use proper motion measurements of the star from HIPPARCOS and Gaia.
Results. The SPHERE data reveal a point source with a contrast of ∼9 mag at a projected separation of ∼235 mas. No other point sources are detected in the field of view. By jointly fitting the RV, imaging, and proper motion data, we constrain all the orbital parameters of HD 72946B and assess a dynamical mass of 72.4 ± 1.6 MJ and a semi-major axis of 6.456.45+0.08−0.07 au. Empirical comparison of its SPHERE spectrum to template dwarfs indicates a spectral type of L5.0 ± 1.5. The J–H3 color is close to the expectations of the DUSTY models and suggests a cloudy atmosphere. Comparison with atmospheric models of the spectrophotometry suggests an effective temperature of ∼1700 K. The bolometric luminosity (log(L/L⊙) = −4.11 ± 0.10 dex) and dynamical mass of HD 72946B are more compatible with evolutionary models for an age range of ∼0.9−3 Gyr. The formation mechanism of the companion is currently unclear as the object appears slightly away from the bulk of model predictions. HD 72946B is currently the closest benchmark brown dwarf companion to a solar-type star with imaging, RV, and proper motion measurements.
Toxoplasma gondiiin beef consumed in France: regional variation in seroprevalence and parasite isolation
Authors: Blaga Radu , Aubert Dominique , Thébault Anne , Perret Catherine , Geers Régine , Thomas Myriam , Alliot Annie , Djokic Vitomir , Ortis Naïma , Halos Lénaïg , Durand Benoît , Mercier Aurélien , Villena Isabelle , Boireau Pascal 
Published: December 2019

In France, the consumption of cattle and sheep meat appears to be a risk factor for infection of pregnant women withToxoplasma gondii. Several nation-wide surveys in France have investigated the prevalence ofT. gondiiin sheep and pig meat, but little is known at present about the prevalence of the parasite in beef. The main objective of the present cross-sectional survey was to estimate the seroprevalence ofT. gondiiinfection in beef consumed in France. A secondary objective was to attempt to isolateT. gondiifrom cattle tissues and to study the geographical and age variations of this seroprevalence. The overall estimate of seroprevalence ofT. gondiiin bovine carcasses (n = 2912), for a threshold of 1:6 was 17.38%. A strong age effect was observed (p < 0.0001) with a seroprevalence of 5.34% for calves (<8 months) and 23.12% for adults (>8 months). Seroprevalence estimates given by area of birth and area of slaughtering for adults showed that the areas with the highest seroprevalence were not the same between these two variables. Only two strains, corresponding to genotype II, were isolated from heart samples, indicating that there is a limited risk of human infection withT. gondii, which needs to be correlated with the food habit of consuming raw or undercook (bleuorsaignant) beef. However, new questions have emerged, especially concerning the isolation of parasites from beef and the precise role of bovines, generally described as poor hosts forT. gondii, in human infection.
Using AphasiaBank for Discourse Assessment
Authors: Fromm Davida , Forbes Margaret , Holland Audrey , MacWhinney Brian 
Published: December 2019

AbstractAphasiaBank is a shared, multimedia database for the study of communication in aphasia. This article describes a variety of discourse measurement tools and teaching resources available at the AphasiaBank website. The discourse measurement tools include main concept analysis, core lexicon checklists, correct information unit computation techniques, and other automated analyses using the CLAN program. These tools can be used to measure a variety of aspects of language production for assessment as well as treatment evaluation and clinical research purposes. Importantly, they are intended to help make the discourse analysis process more efficient and reliable. Teaching resources include an online tutorial on aphasia, videos of typical behaviors seen in aphasia, group treatment videos, classroom activities, tutorial screencasts, and conference posters. These resources can be used for a variety of clinical and educational purposes. The AphasiaBank website is part of the larger TalkBank project which provides many other shared databases and resources that are relevant to professionals interested in communication and communication disorders.
Arcuate Kisspeptin Neurons Coordinate Reproductive Activities with Metabolism
Authors: Rønnekleiv Oline K. , Qiu Jian , Kelly Martin J. 
Published: December 2019

AbstractHypothalamic control of fertility is the quintessential homeostatic function. However, fertility is metabolically demanding; so, there must be coordination between energy states and reproductive functions. Because gonadotropin-releasing hormone (GnRH) neurons are devoid of many of the critical metabolic hormone receptors for sensing nutrient levels, it has long been recognized that the sensing of energy stores had to be done by neurons presynaptic to GnRH neurons. Some of the obvious players have been the anorexigenic proopiomelanocortin (POMC) and orexigenic neuropeptide Y (NPY)/agouti-related peptide (AgRP) neurons, both of which are in close apposition to the median eminence, a circumventricular organ. Indeed, POMC and NPY/AgRP neurons are inversely regulated by glucose and metabolic hormones including insulin and leptin. However, their synaptic connections with GnRH neurons are sparse and/or GnRH neurons are lacking the postsynaptic receptors to mediate the appropriate physiological response. Kisspeptin neurons were discovered in the early part of this century and subsequently shown to project to and control GnRH neuronal excitability. In fact, more recently the arcuate kisspeptin neurons have been identified as the command neurons driving pulsatile release of GnRH. Subsequently, it was shown that arcuate kisspeptin neurons express not only steroid hormone receptors but also metabolic hormone receptors such that similar to POMC neurons, they are excited by insulin and leptin. Therefore, based on the premise that arcuate kisspeptin neurons are the key neurons coordinating energy states with reproduction, we will review not only how these vital neurons control pulsatile GnRH release but how they control energy homeostasis through their synaptic connections with POMC and NPY/AgRP neurons and ultimately how E2 can regulate their excitability.
Saphenous Artery Perforator/Propeller Flap in the Reconstruction of Perigenual Soft Tissue Defects
Authors: Balakrishnan T. M. , Narayanan Aishwarya Vadakencherry Lakshmi , Jaganmohan J. 
Published: December 2019

Abstract
Introduction In this article, we investigate the saphenous artery perforator propeller flap for the reconstruction of perigenual defects. We describe the anatomy of the saphenous artery and the method of raising a perforator propeller flap based on our study and early clinical experience.
Aim To assess the effectiveness of the saphenous artery perforator propeller flap in the reconstruction of perigenual defects.
Materials and Methods A preliminary cadaver dissection and injection study was conducted to discern the anatomical details of the perforator system of the saphenous vessel in 35 cadaveric specimens in 18 fresh cadavers. From March 2016 to March 2018, 16 clinical cases (5 females and 11 males, in the average age group of 33.5 years) with perigenual defects were reconstructed with saphenous artery perforator propeller flap. They were followed up for an average period of 12.5 months.
Results Cadaver study established anterior sartorial perforators as the dominant system of the saphenous vessel and brought to the forefront the type 2 blood supply of the saphenous nerve. All patients had well-settled flaps at the end of the follow-up period, with good return of knee function.
Conclusion Saphenous artery perforator propeller flap is a viable option for the reconstruction of defects around the knee joint.
Level of Evidence Type V, therapeutic study.
A Compendium of Core Lexicon Checklists
Authors: Dalton Sarah Grace Hudspeth , Kim Hana , Richardson Jessica D. , Wright Heather Harris 
Published: December 2019

AbstractCore Lexicon (CoreLex) is a relatively new approach assessing lexical use in discourse. CoreLex examines the specific lexical items used to tell a story, or how typical lexical items are compared with a normative sample. This method has great potential for clinical utilization because CoreLex measures are fast, easy to administer, and correlate with microlinguistic and macrolinguistic discourse measures. The purpose of this article is to provide clinicians with a centralized resource for currently available CoreLex checklists, including information regarding development, norms, and guidelines for use.
Efficacy of Group Conversation Intervention in Individuals with Severe Profiles of Aphasia
Authors: Hoover Elizabeth , McFee Alexandra , DeDe Gayle 
Published: December 2019

AbstractAn estimated 390,000 to 520,000 individuals with severe aphasia (IWSA) currently live in the United States. IWSA experience profound social isolation, which is associated with a wide range of negative health outcomes, including mortality. Treatments for severe aphasia frequently focus on compensatory communication approaches or a discrete communication act rather than on participation-based treatment. The purpose of this study was to determine whether IWSA demonstrated improved performance on standardized language measures, patient-reported outcome measures, and connected speech samples as a result of client-centered conversation group treatment. Results of assessments conducted at pretreatment, posttreatment, and maintenance intervals were variable across participants. All participants demonstrated improvement in at least one of the outcome measures considered. Importantly, none of these measures fully captured how IWSA were able to convey their thoughts in supported conversation. The results lend support for the use of conversation treatment for, and for further study in, this subpopulation of individuals with aphasia.
Chemoenzymatic oxygenation method for sesquiterpenoid synthesis based on Fe-chelate and ferric-chelate reductase
Authors: Umezawa Satoru , Akao Hiroko , Kubota Mio , Kino Kuniki 
Published: December 2019

ABSTRACT
Sesquiterpenoids are one of the most diverse groups in natural compounds with various chemical structures and bioactivities. In our previous work, we developed the chemoenzymatic oxygenation method based on the combination of Fe(II)-EDTA and ferric-chelate reductase that could synthesize (−)-rotundone, a key aroma sesquiterpenoid of black pepper. Fe(II)-EDTA catalyzed the oxygenation of sesquiterpene to sesquiterpenoid, and ferric-chelate reductase catalyzed the supply and regeneration of Fe(II)-EDTA in this system. We then investigated the effect of various Fe2+-chelates on the catalytic oxygenation of sesquiterpene and applied this system to the synthesis of odor sesquiterpenoids. We determined Fe(II)-NTA to be an efficient oxygenation catalyst by the screening approach focusing on ligand structures and coordination atoms of Fe2+-chelates. Valuable odor sesquiterpenoids such as (+)-nootkatone, (−)-isolongifolenone, and (−)-β-caryophyllene oxide were oxygenatively synthesized from each precursor sesquiterpene by 66%, 82%, and 67% of the molar conversion rate, respectively.
Abbreviations: EDTA: ethylenediaminetetraacetate; NTA: nitrilotriacetate; DTPA: diethylenetriaminepentaacetate; phen: o-phenanthroline; cyclam: 1,4,8,11-tetraazacyclotetradecane; TPA: tris(2-pyridylmethyl)amine; GlcDH: glucose dehydrogenase; HP-β-CD: hydroxypropyl-β-cyclodextrin
Results of the CCRI(II)-K2. H-3 key comparison 2018: measurement of the activity concentration of a tritiated-water source
Authors: Cassette P , Arinc A , Capogni M , Felice P De , Dutsov C , Galea R , Garcia-Toraño E , Kossert K , Liang J , Mitev K , Nähle O , Nedjadi Y , Verdecia P Oropesa , Takács M , Ziemek T 
Published: December 2019

A comparison of the activity concentration measurement of a 3H2O solution was organized by the LNE-LNHB under the auspices of the CCRI(II). The solution was sent to thirteen laboratories and eleven measurement reports were received. The results, as well as relevant information on the measurement techniques, are presented and analysed in this paper. All results are consistent within uncertainties. As the solution was traceable to the solution used in the CCRI(II)-K2.H-3 comparison in 2009, the results of both comparisons are also presented.

Main text

To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.
The final report has been peer-reviewed and approved for publication by the CCRI, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
Nonlinear dynamics of weakly dissipative optomechanical systems
Authors: Roque Thales Figueiredo , Marquardt Florian , Yevtushenko Oleg M 
Published: December 2019

Abstract
Optomechanical systems attract a lot of attention because they provide a novel platform for quantum measurements, transduction, hybrid systems, and fundamental studies of quantum physics. Their classical nonlinear dynamics is surprisingly rich and so far remains underexplored. Works devoted to this subject have typically focussed on dissipation constants which are substantially larger than those encountered in current experiments, such that the nonlinear dynamics of weakly dissipative optomechanical systems is almost uncharted waters. In this work, we fill this gap and investigate the regular and chaotic dynamics in this important regime. To analyze the dynamical attractors, we have extended the ‘generalized alignment index’ method to dissipative systems. We show that, even when chaotic motion is absent, the dynamics in the weakly dissipative regime is extremely sensitive to initial conditions. We argue that reducing dissipation allows chaotic dynamics to appear at a substantially smaller driving strength and enables various routes to chaos. We identify three generic features in weakly dissipative classical optomechanical nonlinear dynamics: the Neimark–Sacker bifurcation between limit cycles and limit tori (leading to a comb of sidebands in the spectrum), the quasiperiodic route to chaos, and the existence of transient chaos.
Improved efficiency and photo-stability of methylamine-free perovskite solar cells via cadmium doping
Authors: Chen Yong , Zhao Yang , Ye Qiufeng , Chu Zema , Yin Zhigang , Zhang Xingwang , You Jingbi 
Published: December 2019

Abstract
Although perovskite solar cells containing methylamine cation can show high power conversion efficiency, stability is a concern. Here, methylamine-free perovskite material Cs
x
FA1–x
PbI3 was synthesized by a one-step method. In addition, we incorporated smaller cadmium ions into mixed perovskite lattice to partially replace Pb ions to address the excessive internal strain in perovskite structure. We have found that the introduction of Cd can improve the crystallinity and the charge carrier lifetime of perovskite films. Consequently, a power conversion efficiency as high as 20.59% was achieved. More importantly, the devices retained 94% of their initial efficiency under 1200 h of continuous illumination.
Analytical model for the effects of the variation of ferrolectric material parameters on the minimum subthreshold swing in negative capacitance capacitor
Authors: Rasool Raheela , Najeeb-ud-Din  , Rather G. M. 
Published: December 2019

Abstract
In this paper, we analytically study the relationship between the coercive field, remnant polarization and the thickness of a ferroelectric material, required for the minimum subthreshold swing in a negative capacitance capacitor. The interdependence of the ferroelectric material properties shown in this study is defined by the capacitance matching conditions in the subthreshold region in an NC capacitor. In this paper, we propose an analytical model to find the optimal ferroelectric thickness and channel doping to achieve a minimum subthreshold swing, due to a particular ferroelectric material. Our results have been validated against the numerical and experimental results already available in the literature. Furthermore, we obtain the minimum possible subthreshold swing for different ferroelectric materials used in the gate stack of an NC-FET in the context of a manufacturable semiconductor technology. Our results are presented in the form of a table, which shows the calculated channel doping, ferroelectric thickness and minimum subthreshold for five different ferroelectric materials.
A compact two-dimensional analytical model of the electrical characteristics of a triple-material double-gate tunneling FET structure
Authors: Usha C. , Vimala P. 
Published: December 2019

Abstract
This paper presents a compact two-dimensional analytical device model of surface potential, in addition to electric field of triple-material double-gate (TMDG) tunnel FET. The TMDG TFET device model is developed using a parabolic approximation method in the channel depletion space and a boundary state of affairs across the drain and source. The TMDG TFET device is used to analyze the electrical performance of the TMDG structure in terms of changes in potential voltage, lateral and vertical electric field. Because the TMDG TFET has a simple compact structure, the surface potential is computationally efficient and, therefore, may be utilized to analyze and characterize the gate-controlled devices. Furthermore, using Kane's model, the current across the drain can be modeled. The graph results achieved from this device model are close to the data collected from the technology computer aided design (TCAD) simulation.
How many shades of grey are in conformity assessment due to measurement uncertainty?
Authors: Kuselman Ilya , Pennecchi Francesca R , da Silva Ricardo J N B , Brynn Hibbert D 
Published: December 2019

Abstract
When a measured value of a property of a material or object differs from the upper or lower specification limit (actual or ‘true’ value) by the expanded measurement uncertainty or more, there is the clear decision on the material conformity or nonconformity - ‘white’ or ‘black’. In the interval from the measured value to the specification limit, covered by the expanded measurement uncertainty (‘grey zone’), risks of false decisions on conformity increase. Several kinds of the risks, named ‘shades of grey’, should be taken into account. For a multicomponent material there are four kinds of particular risks for each property value of the material (e.g. component concentration or content), and four kinds of total risks related to the material as a whole. Therefore, for n > 1 properties under control for the material conformity assessment one can distinguish 4(n +1) kinds of risks of false decisions – shades of grey.