bluuebunny/crossref_metadata_2025 huggingface dataset:
Description of the last instar larva of Neoneura kiautai Machado (Odonata: Protoneuridae)
Authors: ANJOS-SANTOS DANIELLE , PESSACQ PABLO , COSTA JANIRA MARTINS
Published: February 2019

The Neotropical genus Neoneura Selys, with 29 described species (Garrison et al., 2010) is the largest one within Protoneuridae. Its species are distributed from southern North America to northern Argentina, but the region of the Amazonas River shows the highest diversity (Machado, 2005). The immature stages of the genus are poorly known, with only the larvae of N. carnatica Selys, 1886, N. fulvicollis Selys, 1886, N. joana Williamson, 1917, and N. maria (Scudder, 1866) described (Needham, 1939; De Marmels, 2007; Geijskes, 1954; Westfall, 1964), representing 14% of the known species. The larva of N. aaroni Calvert, 1903 is included in the key of Westfall and May (2006), but it was not formally described. The larva of N. ethela Williamson, 1917 is currently being described (Souza & Pepinelli, pers. comm.). All known Neoneura larvae possess one pair of premental setae and a well marked nodus on the caudal lamellae.
A new genus and species of cryptic Asian green pitviper (Serpentes: Viperidae: Crotalinae) from southwest China
Authors: GUO PENG , WANG YUEZHAO
Published: February 2019

A new genus and species of Asian green pitviper is described from Southwest China based on two female specimens. A new DNA phylogeny recovers the two specimens of the new species as a well-supported clade that is sister group to all sampled representatives of the genera Viridovipera and Cryptelytrops. The new genus is distinguished from other pitviper genera by a combination of morphological characters, including the absence of a lateral stripe, large body size, and deep red eye in adult females. Morphologically the new species is superficially most similar to species of Popeia in body dimension and scalation, but is genetically extremely distinct. The new genus/species is currently known only from south Sichuan, where it was found at about 1000 m above sea level in less disturbed evergreen rainforest.
Catoptrus iejima, a new species of cavernicolous swimming crab (Crustacea: Brachyura: Portunidae) from a submarine cave at Ie Island, Ryukyu Islands, Japan
Authors: FUJITA YOSHIHISA , NARUSE TOHRU
Published: February 2019

A new species of swimming crab belonging to the genus Catoptrus A. Milne-Edwards, 1870, is described based on a single female specimen collected from a submarine cave at Ie Island, Ryukyu Islands, Japan. The new species can be easily distinguished from all five congeners by its proportionally longer pereopods as well as by combinations of the characters of the carapace, eyes, and cheliped.
Seven new species of Enna (Araneae: Trechaleidae) from Central and South America
Authors: DA SILVA ESTEVAM L. CRUZ , LISE ARNO A.
Published: February 2019

Seven new species of the spider genus Enna O. Pickard-Cambridge, 1897 from Central and South America are described and illustrated for the first time: Enna carinata sp. nov. (male, Panama), E. triste sp. nov. (male, Venezuela), E. caricoi sp. nov. (male, Colombia), E. venezuelana sp. nov. (female, Venezuela), E. silvae sp. nov. (female, Peru), E. frijoles sp. nov. (female, Panama) and E. zurqui sp. nov. (female, Costa Rica). A new record of Enna estebanensis (Simon, 1898) is reported from Ecuador.
Systematic Differences in Bucket Sea Surface Temperature Measurements among Nations Identified Using a Linear-Mixed-Effect Method
Authors: Chan Duo , Huybers Peter
Published: February 2019

The International Comprehensive Ocean–Atmosphere Dataset (ICOADS) is a cornerstone for estimating changes in sea surface temperatures (SST) over the instrumental era. Interest in determining SST changes to within 0.1°C makes detecting systematic offsets within ICOADS important. Previous studies have corrected for offsets among engine room intake, buoy, and wooden and canvas bucket measurements, as well as noted discrepancies among various other groupings of data. In this study, a systematic examination of differences in collocated bucket SST measurements from ICOADS3.0 is undertaken using a linear-mixed-effect model according to nations and more-resolved groupings. Six nations and a grouping for which nation metadata are missing, referred to as “deck 156,” together contribute 91% of all bucket measurements and have systematic offsets among one another of as much as 0.22°C. Measurements from the Netherlands and deck 156 are colder than the global average by −0.10° and −0.13°C, respectively, both at p < 0.01, whereas Russian measurements are offset warm by 0.10°C at p < 0.1. Furthermore, of the 31 nations whose measurements are present in more than one grouping of data (i.e., deck), 14 contain decks that show significant offsets at p < 0.1, including all major collecting nations. Results are found to be robust to assumptions regarding the independence and distribution of errors as well as to influences from the diurnal cycle and spatially heterogeneous noise variance. Correction for systematic offsets among these groupings should improve the accuracy of estimated SSTs and their trends.
High-Resolution Gridded Daily Rainfall and Temperature for the Hawaiian Islands (1990–2014)
Authors: Longman Ryan J. , Frazier Abby G. , Newman Andrew J. , Giambelluca Thomas W. , Schanzenbach David , Kagawa-Viviani Aurora , Needham Heidi , Arnold Jeffrey R , Clark Martyn P.
Published: February 2019

Spatially continuous data products are essential for a number of applications including climate and hydrologic modeling, weather prediction, and water resource management. In this work, a distance-weighted interpolation method used to map daily rainfall and temperature in Hawaii is described and assessed. New high-resolution (250 m) maps were developed for daily rainfall and daily maximum (Tmax) and minimum (Tmin) near-surface air temperature for the period 1990–2014. Maps were produced using climatologically aided interpolation, in which station anomalies were interpolated using an optimized inverse distance weighting approach and then combined with long-term means to produce daily gridded estimates. Leave-one-out cross validation was performed to assess the quality of the final daily grids. The median absolute prediction error for rainfall was 0.1 mm with an average overprediction (+0.6 mm) on days when total rainfall was less than 1 mm. On days with total rainfall greater than 1 mm, median absolute prediction errors were 2 mm and rainfall was typically underpredicted above the 10-mm threshold. For daily temperature, median absolute prediction errors were 3.1° and 2.8°C for Tmax and Tmin, respectively. On average, this method overpredicted Tmax (+1.1°C) and Tmin (+1.5°C), and errors varied considerably among stations. Errors for all variables exhibited significant seasonal variations. However, the annual range of errors was small. The methods presented here provide an effective approach for mapping daily weather fields in a topographically diverse region and improve on previous products in their spatial resolution, time period of coverage, and use of data.
Feasibility of text messaging to promote child health in a rural community on an American Indian reservation
Authors: Brown Blakely , Harris Kari , Dybdal Laura , Malich Julia , Bodnar Brenda , Hall Emily
Published: February 2019

Objective:

This study investigated the feasibility of delivering health-related short text messages to parents with the goal of reducing obesity risk among their children aged 3–5 years.

Design:

Quasi-experimental design involving one experimental group of 17 parents.

Setting:

Rural American Indian reservation.

Methods:

During the 5-week intervention period, parents received 3 topic-related text messages each week for a total of 15 messages. The topics focused on included nutrition, physical activity (PA), sleep, consumption of sugary beverages, TV viewing and screen time. Outcomes included assessments of feasibility including retention rates; delivery, receipt and response to text messages; and programme satisfaction. Pre- to posttest changes in parent knowledge of health behaviours associated with childhood obesity and parent report of these health behaviours in their child were also assessed.

Results:

A total of 100% (17/17) of the participants completed the study and final assessments. All texts ( n = 289) sent to participants were successfully delivered. Of the 85 texts that requested a response, parents responded to 91% (78/85) by answering the question. All participants reported they found the texts easy to understand. A total of 94% (16/17) of participants reported enjoying the frequency with which they received messages. At the end of the study, parents reported improved overall child health behaviours that approached statistical significance ( p = .051) and parents reported significantly improved behaviours related to PA and sleep ( p = .046). No significant differences were found for changes in parent knowledge.

Conclusion:

Findings suggest it is feasible to deliver a text messaging-based childhood obesity prevention intervention to parents of young children living on a rural American Indian reservation. Text messages were appreciated by parents and may influence child health behaviours associated with childhood obesity.
An Exploratory Double-Blind Study of Caffeine Effects on Performance and Perceived Exertion in Judo
Authors: Saldanha da Silva Athayde Marina , Kons Rafael L. , Detanico Daniele
Published: February 2019

This study analyzed the effects of caffeine ingestion during judo matches on judo athletes' match-derived performance and perceived exertion responses. We applied a double-blind randomized crossover (caffeine vs. placebo conditions) research design. Twelve male athletes performed three 5-minute matches separated by 15 minutes of passive rest. Immediately after each match, the athletes completed ratings of perceived exertion (RPEs), and one minute before beginning the second and third matches, they provided ratings of perceived recovery (RPRs). We filmed all matches for subsequent analysis of the athletes' technical skills. We found no interaction between condition and time of RPE, RPR, and match-derived technical variables, but number of attacks and RPR decreased over the matches, and RPE increased in both conditions. Three participants showed individual positive responses to caffeine ingestion for number of attacks. Attacks, efficiency, and effectiveness presented low sensitivity in both conditions, as only large changes could be identified. We conclude that caffeine ingestion did not provoke changes in either perceived exertion or match-derived performance. Match-derived technical variables were not sensitive for detecting small or medium effects of caffeine, but perceived exertion may detect at least medium effect after caffeine ingestion.
Measles and the Modern History of Vaccination
Authors: Conis Elena
Published: February 2019

The modern era of vaccination was heralded with the licensure of the first 2 measles vaccines in 1963. This new era was distinct from the preceding era of vaccination for 4 main reasons. First, federal leadership in support of immunization at the local level grew. Second, immunization proponents championed the required vaccination of children as the best means of ensuring a protected population. Third, immunization proponents championed the idea that mass vaccination would not only help manage infectious diseases but also eradicate them. Fourth, the focus of local and federally supported immunization initiatives began to extend to the “mild” and “moderate” diseases of childhood (eg, measles), so-called because they were seen as less severe than previous targets of mass vaccination, such as smallpox, polio, and diphtheria. This article follows the history of measles to explore immunization successes and challenges in this modern era, because measles was the first of the mild and moderate diseases to become the target of a federally supported eradication-through-vaccination campaign, one that relied heavily on the preemptive, required vaccination of children. Its story thus epitomizes the range of political, epidemiological, cultural, and communications challenges to mass immunization in the modern era of vaccination.
A new method to evaluate the dynamic air gap thickness and garment sliding of virtual clothes during walking
Authors: Hu Pengpeng , Ho Edmond SL , Aslam Nauman , Komura Taku , Shum Hubert PH
Published: February 2019

With the development of e-shopping, there is a significant growth in clothing purchases online. However, the virtual clothing fit evaluation is still under-researched. In the literature, the thickness of the air layer between the human body and clothes is a dominant geometric indicator to evaluate the clothing fit. However, such an approach has only been applied to the stationary positions of the mannequin/human body. Physical indicators such as the pressure/tension of a virtual garment fitted on the virtual body in a continuous motion are also proposed for clothing fit evaluation. Neither geometric nor physical evaluations consider the interaction of the garment with the body, e.g., the sliding of the garment along the human body. In this study, a new framework was proposed to automatically determine the dynamic air gap thickness. First, the dynamic dressed character sequence was simulated in three-dimensional (3D) clothing software via importing the body parameters, cloth parameters, and a walking motion. Second, a cost function was defined to convert the garment in the previous frame to the local coordinate of the next frame. The dynamic air gap thickness between clothes and the human body was determined. Third, a new metric, the 3D garment vector field was proposed to represent the movement flow of the dynamic virtual garment, whose directional changes are calculated by cosine similarity. Experimental results show that our method is more sensitive to the small air gap thickness changes compared with state-of-the-art methods, allowing it to more effectively evaluate clothing fit in a virtual environment.
How Pinteresting: An Analysis of Social Media Resources for Internalizing Disorders
Authors: San Jose Alyssa L. , Hall Cristin M. , Schaefer Barbara A. , Breeden Nicole C.
Published: February 2019

Many efforts have been made to understand social media and the resources existing online. However, prior studies have not thoroughly assessed specific platforms and the content being shared. The present study examined Pinterest content sharing as a proxy for interest among school personnel. Using Hall, Breeden, and Giacobe’s coding scheme, 657 pins from 499 randomly selected pinners following the National Association of School Psychologists’ Pinterest account were coded by content area and assessed for level of evidence base. Significant associations were found in chi-square analyses between category of internalizing disorders, evidence base, and types of pins shared. In addition, the category of internalizing disorder and level of evidence base were found to have a significant interaction with the ease of implementation. Assessing the content shared on Pinterest may inform future evidence-based implementation difficulties in schools.
Lasso Regularization for Selection of Log-linear Models: An Application to Educational Assortative Mating
Authors: Bucca Mauricio , Urbina Daniela R.
Published: February 2019

Log-linear models for contingency tables are a key tool for the study of categorical inequalities in sociology. However, the conventional approach to model selection and specification suffers from at least two limitations: reliance on oftentimes equivocal diagnostics yielded by fit statistics, and the inability to identify patterns of association not covered by model candidates. In this article, we propose an application of Lasso regularization that addresses the aforementioned limitations. We evaluate our method through a Monte Carlo experiment and an empirical study of educational assortative mating in Chile, 1990–2015. Results demonstrate that our approach has the virtue, relative to ad hoc specification searches, of offering a principled statistical criterion to inductively select a model. Importantly, we show that in situations where conventional fit statistics provide conflicting diagnostics, our Lasso-based approach is consistent in its model choice, yielding solutions that are both predictive and parsimonious.
Small Area Estimation of Latent Economic Well-being
Authors: Moretti Angelo , Shlomo Natalie , Sakshaug Joseph W.
Published: February 2019

Small area estimation (SAE) plays a crucial role in the social sciences due to the growing need for reliable and accurate estimates for small domains. In the study of well-being, for example, policy makers need detailed information about the geographical distribution of a range of social indicators. We investigate data dimensionality reduction using factor analysis models and implement SAE on the factor scores under the empirical best linear unbiased prediction approach. We contrast this approach with the standard approach of providing a dashboard of indicators or a weighted average of indicators at the local level. We demonstrate the approach in a simulation study and a real data application based on the European Union Statistics for Income and Living Conditions for the municipalities of Tuscany.
Negotiating Impossibilities in Community-driven Development in Indonesia
Authors: Jakimow Tanya
Published: February 2019

This article examines four normative expectations of community-driven development (CDD) programs and their concomitant criticisms from the perspective of community-based volunteers (CBVs). These volunteers compromise on the ideals of CDD to achieve results. Their compromises often become the focus of criticism. In devolving limited control over development resources to the local level, CDD also devolves the responsibility for failure. Based on a case study of a CDD program in Medan, Indonesia, this article argues that the way CBVs negotiate the impossibilities of CDD in urban contexts should become the starting point for a more realistic approach to making CDD succeed.
The Human Is Dead – Long Live the Algorithm! Human-Algorithmic Ensembles and Liberal Subjectivity
Authors: Matzner Tobias
Published: February 2019

The article analyzes the relation of humans and technology concerning so called ‘intelligent’ or ‘autonomous’ algorithms that are applied in everyday contexts but are far removed from any form of substantial artificial intelligence. In particular, the use of algorithms in surveillance and in architecture is discussed. These examples are structured by a particular combination of continuity and difference between humans and technology. The article provides a detailed analysis of boundary practices that establish continuity and oppositions between humans and information technology, referring to their exemplary depiction in movies. Both strands of boundary practices have the potential to challenge as well as sustain the position of the human as liberal, autonomous subject. Finally, it is shown how the particular combination of continuity and difference that structures the use of algorithms maintains the power of liberal, autonomous subject positions, while the shift of decisions to the algorithms seems to decenter the human.
The effect and optimal parameters of repetitive transcranial magnetic stimulation on motor recovery in stroke patients: a systematic review and meta-analysis of randomized controlled trials
Authors: Xiang Huifang , Sun Jing , Tang Xiang , Zeng Kebin , Wu Xiushu
Published: February 2019

Objective:

The primary aim of this meta-analysis was to evaluate the effects of repetitive transcranial magnetic stimulation (rTMS) on limb movement recovery post-stroke and cortex excitability, to explore the optimal parameters of rTMS and suitable stroke population. Second, adverse events were also included.

Data sources:

The databases of PubMed, EBSCO, MEDLINE, the Cochrane Central Register of Controlled Trials, EBM Reviews-Cochrane Database, the Chinese National Knowledge Infrastructure, and the Chinese Science and Technology Journals Database were searched for randomized controlled trials exploring the effects of rTMS on limb motor function recovery post-stroke before December 2018.

Review methods:

The effect sizes of rTMS on limb motor recovery, the effect size of rTMS stimulation parameters, and different stroke population were summarized by calculating the standardized mean difference (SMD) and the 95% confidence interval using fixed/random effect models as appropriate.

Results:

For the motor function assessment, 42 eligible studies involving 1168 stroke patients were identified. The summary effect size indicated that rTMS had positive effects on limb motor recovery (SMD = 0.50, P < 0.00001) and activities of daily living (SMD = 0.82, P < 0.00001), and motor-evoked potentials of the stimulated hemisphere differed according to the stimulation frequency, that is, the high-frequency group (SMD = 0.57, P = 0.0006), except the low-frequency group (SMD = –0.27, P = 0.05). No significant differences were observed among the stimulation parameter subgroups except for the sessions subgroup ( P = 0.02). Only 10 included articles reported transient mild discomfort after rTMS.

Conclusions:

rTMS promoted the recovery of limb motor function and changed the cortex excitability. rTMS may be better for early and pure subcortical stroke patients. Regarding different stimulation parameters, the number of stimulation sessions has an impact on the effect of rTMS.
Sociocultural Perceptions and Enablers to Seeking Mental Health Support Among Bhutanese Refugees in Western Massachusetts
Authors: Poudel-Tandukar Kalpana , Jacelon Cynthia S. , Chandler Genevieve E. , Gautam Bhuwan , Palmer Paula H.
Published: February 2019

This qualitative study aimed to identify cultural influences on seeking mental health support among Bhutanese refugees resettled in Western Massachusetts. Bhutanese refugees aged 18 years or older were recruited for eight focus group discussions, organized by age and gender ( N = 67, 49.3% female, mean age = 38, SD = 15.9). The PEN-3 cultural model was used as the theoretical framework to examine the roles of cultural perceptions that influence mental health-seeking behaviors. Focus group discussions were audio taped to facilitate the thematic-analysis. Younger participants (<35 years) reported experiencing stressors relating to economic hardships and difficulties in developing academic and social skills as they juggle breadwinner and care-giving responsibilities for their families. Older participants reported frustration with the difficulties in learning English and increased dependence on their children. Family members provided the initial frontline support to persons with mental health problems. If family support did not work, they consulted with their relatives and trustworthy community members for further assistance. Psychological factors such as fears of emotions, social norms, beliefs, and self-esteem associated with cultural norms and values influenced seeking mental health support. All participants expressed the need to have a culturally tailored intervention to develop acquired skills to improve their self-esteem and self-efficacy in order to integrate into their new social and cultural environment. Because family members make important decisions about seeking mental health support, involving family members in developing and delivering culturally appropriate skill development interventions could be a potential strategy to reduce their stress and increase resilience in this refugee community.
Effective preoperative abdominal incision planning on a patient with a history of repeated abdominal operations using a three-dimensional reconstruction technique: a case report
Authors: Li Jiaxin , Qian Kun , Wu Hong , Zeng Yong
Published: February 2019

This case report describes the use of a three-dimensional reconstruction technique to plan the abdominal incision in order to avoid incision-related complications in a 53-year-old female patient who had had a cystic mass in the liver for 16 years and had undergone four previous surgeries. The patient presented with a recurrent cyst. The surgical team used three-dimensional reconstruction to model the liver mass, the area of abdominal wall weakness due to previous surgeries, bowel adhesions, skeletal structure and whole abdominal contour. The models were superimposed upon each other to reveal the relationship between the various features so that the optimum incision point could be selected so as to avoid the area of abdominal wall weakness, bowel adhesions and vital organs. The actual surgical incision was made based on the three-dimensional reconstruction models and the surgeon was able to avoid the area of abdominal wall weakness and bowel adhesions as planned. No incisional hernia and wound infection were observed postoperatively and the incision healed well. The three-dimensional reconstruction technique for preoperative surgical incision planning on patients with a history of multiple abdominal surgeries can minimize incision-related complications and achieve good therapeutic results.
Network Planning Location Model for China Railway Express
Authors: Wu Yuehui , Lin Chang , Huang Jingyu
Published: February 2019

With the gradual implementation of the Belt & Road Initiative, China Railway Express (CRExpress) has gradually gained support as an important transportation mode between China and Europe. However, the high cost of operation, caused by the unscientific organization mode and the small quantity of returning cargo, hinders the further development of CRExpress. Prior studies have shown that applying the hub-and-spoke transportation organization mode to the CRExpress system could decrease operational cost effectively. To carry out network planning for CRExpress, based on its present situation and properties, a conventional hub location model is adjusted. The network planning location model for CRExpress which minimizes total operation cost and allows direct transportation mode is proposed as well as an algorithm based on the genetic algorithm (GA) approach. The reasonableness and feasibility of the model and algorithm are investigated and verified through a case study based on the CRExpress system. The result indicates that Chengdu, Yingkow, and Zhengzhou are selected as consolidation centers whereas Urumqi and Xining adopt direct transportation mode.
Changes in Symptom Burden in Dialysis Patients Assessed Using a Symptom-Reporting Questionnaire in Clinic
Authors: Moskovitch Jeremy T. , Mount Peter F. , Davies Matthew R. P.
Published: February 2019

Introduction:

To determine the prevalence, severity, and change in symptoms experienced by dialysis patients following the introduction of use of a symptom-reporting questionnaire in nephrology clinic.

Methods:

This is an observational study of 160 prevalent dialysis patients. Palliative care Outcome Scale symptom (POS-renal) questionnaires modified for patients with end-stage kidney disease were completed at baseline and follow-up (median 3 months), with results available to nephrologists at clinic appointments.

Findings:

The baseline prevalence of individual symptoms ranged from 15% to 66%. The most common symptoms were lack of energy (66%) and poor mobility (58%). The median number of symptoms was 7/17 (interquartile range [IQR]: 4-10). Forty-nine percent of patients rated at least 1 symptom as severe or overwhelming. At follow-up, the median number of symptoms experienced was unchanged at 7/17 (IQR: 3-10). However, there was considerable flux in symptom severity. On average, individual symptoms that were present at baseline improved in 56% of patients and worsened in 18%; only 26% had stable symptom severity. Individual symptoms newly occurred in 8% to 20% of patients between time points, with 77% of patients experiencing at least 1 new symptom. The percent of patients rating at least 1 symptom as severe or overwhelming was reduced from 49% to 39% ( P = .040).

Conclusions:

Use of the POS-renal questionnaire identified a high symptom burden. The presence and severity of symptoms changed dramatically over a short follow-up period, highlighting the need for regular surveillance of symptoms in the dialysis population. Routine use of a symptom questionnaire in clinic may be useful for the identification and management of symptoms in dialysis patients.
Towards the democratization of the future: The struggle for social recognition and economic success of a West African association of working children and youth
Authors: Fuchs Sarah
Published: February 2019

The African Movement of Working Children and Youth aims to empower and support young people, who otherwise would be excluded from educational and socioeconomic chances, to ‘prepare their future’. In so doing, they re-interpret and re-combine transnational and local frames of reference in order to legitimize and materialize their ideas. I conceptualize this commitment as promoting a democratization of the future because they broaden the meaning of the (good) future as well as the means of access to it.
Measurement method of Wolter-I type mandrel based on a contact-type profilometer
Authors: Kong Fanxing , Sun Tao , Geng Yanquan , Wang Jinghe , Zhang Qiang
Published: February 2019

Contraposing the surface quality testing of a Wolter-I type mandrel after ultraprecise turning, we propose a measuring method based on a contact-type profilometer and fabricate an adjusting device to assist in measurements. By coordinating probe translational motion in the Z and Y directions, this device provides 6 degrees of freedom. Extracting the feature point on the curve of a meridian section contour, the measurement data of the two aspherical surfaces that constitute a Wolter-I type mandrel can be segregated. This feature point is used as a reference point to make the measurement coordinate and machine coordinate systems coincide with each other in order to calculate the dimensional errors of the mandrel. By choosing samples of different lengths, some property indexes of the mandrel surface, such as roughness, waviness, and form error, can be extracted from the contour error signals via the wavelet transform method. This proposed method can solve the problem that the aspheric surface dimension error and contour form error of the Wolter-I mandrel surface cannot be measured by the profilometer when the aspheric reference vertex cannot be determined. Using this method, only one measuring instrument is required to evaluate the mandrel after diamond turning, which can improve the measurement efficiency, and cover the full spatial wavelength range from the figure error to the surface roughness. In addition, this method has the potential to achieve the in situ measurement of the surface of the Wolter-I type ultra-precision mandrel.
Causal Inference About Good and Bad Outcomes
Authors: Dorfman Hayley M. , Bhui Rahul , Hughes Brent L. , Gershman Samuel J.
Published: February 2019

People learn differently from good and bad outcomes. We argue that valence-dependent learning asymmetries are partly driven by beliefs about the causal structure of the environment. If hidden causes can intervene to generate bad (or good) outcomes, then a rational observer will assign blame (or credit) to these hidden causes, rather than to the stable outcome distribution. Thus, a rational observer should learn less from bad outcomes when they are likely to have been generated by a hidden cause, and this pattern should reverse when hidden causes are likely to generate good outcomes. To test this hypothesis, we conducted two experiments ( N = 80, N = 255) in which we explicitly manipulated the behavior of hidden agents. This gave rise to both kinds of learning asymmetries in the same paradigm, as predicted by a novel Bayesian model. These results provide a mechanistic framework for understanding how causal attributions contribute to biased learning.
Gendered discourses in coaching high-performance sport
Authors: de Haan Donna , Knoppers Annelies
Published: February 2019

One of the most important sources of knowledge coaches draw on to inform their practice is their experience of being coached themselves. These experiences are gendered. To date, however, relatively little research is available that indicates how coaches do gender in their discursive coaching practices. We used a Foucauldian lens to explore discourses drawn on by 12 international elite rowing coaches to legitimate their ‘regimes of truth’ in their thinking about elite women rowers. Although they professed to treat everyone the same regardless of gender, they drew on discourses that constituted their women athletes as inferior to various implicit male norms. We suggest that coaches are reproducing the discourses about gender into which they were disciplined during their athletic careers and regard these as ‘regimes of truth’ in their own coaching practice. We discuss the implications of these findings with regard to the perpetuation of the gendering of coaching and conclude that the normalization of men and the gendered hierarchy in sport remains largely unchallenged.
Pyroelectric energy conversion using Ba0.85Sr0.15Zr0.1Ti0.9O3 ceramics and its cement-based composites
Authors: Kumar Anuruddh , Kumar Sidhant , Patel Satyanarayan , Sharma Moolchand , Azad Puneet , Vaish Rahul , Kumar Rajeev , Srikanth KS
Published: February 2019

In this article, we focus on cement-binded Ba0.85Sr0.15Zr0.1Ti0.9O3 ceramics for pyroelectric applications. It was prepared with the Ba0.85Sr0.15Zr0.1Ti0.9O3-to-cement ratios of 85%:15% and 80%:20% by weight. In order to improve the effectiveness of thermal-to-electric energy conversion, the synchronized switch harvesting on inductor technique is experimentally tested on cement composites. Our experimental findings reveal that this concept based on synchronized switch harvesting on inductor can significantly increase the amount of power extracted from pyroelectric materials. Furthermore, the optimized power across 15% and 20% cement composites were found to be 7.2 and 6 nW, respectively, in series synchronized switch harvesting on inductor and 8.5 and 7 nW, respectively, in parallel synchronized switch harvesting on inductor. These values are significantly higher when compared with non-switched circuit for pyroelectric applications. Although, from the obtained results for the prepared composites, the power output is less when compared with pure Ba0.85Sr0.15Zr0.1Ti0.9O3, they have some advantages: these composites can be made without any sintering process and are compatible for structural applications.
Design and control of adaptive vibration absorber for multimode structure
Authors: Shaw Jin-Siang , Wang Cheng-An
Published: February 2019

In this study, we used two tunable vibration absorbers composed of shape memory alloy to reduce vibration of a platform structure. The natural frequency of the shape memory alloy absorber can be tuned online using a fuzzy logic controller to change the axial force of the shape memory alloy wires through phase transformation. In addition, we employed the finite element method to analyze the dynamic characteristics of the multimode platform structure and to evaluate the effectiveness of the shape memory alloy vibration absorber in terms of platform vibration attenuation. Experimental testing of the platform structure was conducted to verify its modal characteristics. By setting the two shape memory alloy tunable vibration absorbers on two adjacent sides of the platform at 90 degrees to each other and offset from the platform’s center axes, it is shown that all six modes can be covered for vibration absorption. The experiments show that the vibration due to all six mode modal excitations can be attenuated by more than 7.49 dB using the shape memory alloy tunable vibration absorber. Specifically, at the fourth, fifth, and sixth resonant modes, an average of 16.68 dB vibration suppression is observed. Overall, an average of 12.69 dB vibration suppression is achieved for resonant excitation of the entire platform structure when using the designed shape memory alloy tunable vibration absorber.
Impact of Hospice and Palliative Care Service Utilization on All-Cause 30-Day Readmission Rate for Older Adults Hospitalized with Heart Failure
Authors: Kheirbek Raya Elfadel , Alemi Yara , Wojtusiak Janusz , Kheirbek Lena , Madison Sorina , Fokar Ali , Doukky Rami , Moore Hans J.
Published: February 2019

Background:

Acute decompensated heart failure (HF) is the leading cause for hospital readmission. Large-scale sustainable interventions to reduce readmission rate have not been fully explored or proven effective.

Objective:

We studied the impact of hospice and palliative care service utilization on 30-day all-cause hospital readmissions for patients with HF.

Methods and Results:

Data were retrieved from the Department of Veterans Affairs Corporate Data Warehouse. The study included 238 116 HF admissions with primary diagnosis of HF belonging to 130 812 patients. Among these patients, 2592 had hospice and palliative care utilizations and 68 245 patients did not. Rehospitalization was calculated within 30 days of index hospitalization. Propensity scores were used to match hospice and nonhospice patients on demographics, Charlson comorbidity categories, and 30-day survival. In the matched group, logistic regression was used to estimate effects of hospice on readmission, controlling for any covariates that had failed to balance. The average age of the matched patients was 74 years old, 14% were African American, 75% Caucasian, 2% Asian, and 17% female. After propensity matching, the odds ratio for readmission was 1.29. The 95% confidence interval for the odds was 1.13 to 1.48, suggesting that veterans receiving services have a higher chance of readmission.

Conclusion:

In a large cohort study of older US Veterans, utilization of hospice and palliative care services was associated with a higher 30-day all-cause readmission rate among hospitalized patients with HF. Further prospective studies should be conducted to confirm results and test generalizability outside the Veterans Affairs system of care.
Assisting Dumbbell Curls via Interactive Sonification of Arm Movement and Muscular Signals
Authors: Yang Jiajun , Hunt Andy
Published: February 2019

We developed an interactive sonification system that lets users listen to their own hand/arm movement and bicep muscle signals as sonic feedback during biceps curls exercise. The system aims to improve the exercise quality and user motivation. Based on two studies, we found that the sonification was more effective in providing temporal cues to slow down the repetition but not as effective as hoped in extending the vertical movement range and increasing repetition amount. The studies provide some design guidelines for multivariate sonification and also reflect a wider potential for applications that include general fitness, physiotherapy, and sports training.
Sarcomatoid Carcinoma With Quasi-Complete Loss of Cytokeratin Expression or Keratin-Positive Atypical Fibroxanthoma
Authors: Roy Simon F. , Lafaille Philippe , Désy Delphine
Published: February 2019

We report the case of a 94-year-old man with a rapidly growing nodule on the preauricular area, which on histology showed a poorly differentiated spindle cell tumor with negative p63 and p40 antibody immunostains, negative high- and low-molecular-weight cytokeratins albeit for a focal expression of cytokeratin AE1/AE3. Spindle cell melanoma, angiosarcoma, and leiomyosarcoma were excluded. We explore the diagnostic approach to this challenging conundrum. Certain authors have suggested that sarcomatoid carcinoma and atypical fibroxanthoma (AFX) may lie within a spectrum of “sarcoma-like tumors of the head and neck” and that they may all run a similarly indolent clinical course. However, AFX appears to remain a diagnosis of exclusion, and expert consensus is that by definition AFX cannot express any cytokeratin antigens.
CT Analysis of the Posteromedial Fragment of the Posterior Malleolar Fracture
Authors: Vosoughi Amir Reza , Jayatilaka Malwattage Lara Tania , Fischer Benjamin , Molloy Andrew P. , Mason Lyndon W.
Published: February 2019

Background:

To date, there have been no studies describing the characteristics of posteromedial fragment in the posterior malleolus fracture. The aim was to investigate the variability of posteromedial fracture fragments to enable better surgical planning.

Methods:

All Mason and Molloy type 2B fractures, defined as fracture of both the posterolateral and the posteromedial fragments of the posterior malleolus, from our database were identified to analyze the preoperative computed tomography scan. The posteromedial fragment was investigated in 47 cases (mean age, 46.6 years; 11 male, 36 female).

Results:

Morphologically, the fracture could be divided into 2 subtypes: (1) a large pilon intra-articular fragment (mean of X axis: 33.0 mm, Y: 30.7 mm, Z: 31.7 mm) presented in 29 cases with mean interfragmentary angle of 32.1 and back of tibia angle of 32.7 degrees (this was seen in 25 of 27 cases with supination injury pattern); and (2) a small extra-articular avulsion fragment (mean of X axis: 9.6 mm, Y: 13.2 mm, Z: 11.5 mm) present in 18 cases with a mean interfragmentary angle of 11.0 and back of tibia angle of 10.1 degrees. It was seen in 80% of pronation injuries.

Conclusion:

The avulsion type of the posteromedial fragment of posterior malleolus fracture was more common in pronation injuries, likely the result of traction by the intermalleolar ligament, and the pilon type was more common in supination injuries, likely the result of the rotating talus impaction. Because of the intra-articular involvement, we believe the pilon type should undergo fixation to achieve articular congruity, unlike the avulsion type which may only function as a secondary syndesmotic stabilizer.

Level of Evidence:

Level III, retrospective comparative series.
When Daddy Stalks Mommy: Experiences of Intimate Partner Stalking and Involvement of Social and Legal Authorities When Stalker and Victim Have Children Together
Authors: Løkkegaard Sille Schandorph , Hansen Nina Beck , Wolf Nele Marie , Elklit Ask
Published: February 2019

This study examined intimate partner stalking experienced by 196 mothers stalked by the father of their children. Respondents completed a questionnaire concerning experiences of stalking and level of support by the authorities. Results revealed higher rates of harassing than violent stalking. In many cases, the children were also targeted by the stalking. Encounters with several agencies were common, but respondents were often not recognized as victims of stalking and demoralized by extensive case proceedings. This study calls for a special sensitivity of professionals encountering stalked parents in their work and highlights a need for coordination and cooperation among multiple agencies.
Influence of Survivors’ Entrapment Factors and Traffickers’ Characteristics on Perceptions of Interpersonal Social Power During Exit
Authors: Preble Kathleen M. , Black Beverly M.
Published: February 2019

Typically examined in terms of understanding vulnerabilities to and the scope of human trafficking, not much is understood about interpersonal dynamics in human trafficking experiences. This article explores human trafficking victims’ ( n = 31, female, international) perceptions of traffickers’ interpersonal social power during the exiting phase of the trafficking experience. Findings from this study revealed that entrapment factors and shared common characteristics between victim and trafficker prior to trafficking influenced perceptions of interpersonal social power. Understanding victims’ perceptions of interpersonal social power is critical to developing trauma-informed targeted services for exiting assistance and aftercare services for this population.
Penetrating deep sclerectomy in primary open-angle and pseudoexfoliative glaucoma
Authors: Kozobolis Vassilios , Kalogianni Eleni , Sideroudi Haris
Published: February 2019

Purpose:

To evaluate the outcomes of a new antiglaucoma surgical method, a modification of the standard deep sclerectomy, the penetrating deep sclerectomy.

Participants:

Patients with medically uncontrolled primary open-angle glaucoma or pseudoexfoliative glaucoma were prospectively, in a consecutive way, enrolled in this study.

Methods:

The study was conducted in Glaucoma Unit, Department of Ophthalmology, University of Hospital of Alexandroupolis, Greece, in 29 eyes of 29 patients. In a fornix-based surgical procedure, all eyes underwent the proposed penetrating deep sclerectomy (deep sclerectomy plus trabeculectomy) with the use of mitomycin C applied intraoperatively (0.2 mg/mL for 2 min). The follow-up period was 3 years. Ocular examination was conducted before the operation and at 1, 3, 6, 12, 18, 24, and 36 months postoperatively.

Results:

The average reduction in intraocular pressure at the end of follow-up was 11.24 (57.88%). The complete success rate (intraocular pressure ⩽21 mm Hg without medication) after 3 years was 58.6%. The qualified success rate (intraocular pressure ⩽21 mm Hg without or with medication) was 75.86%. Postoperatively, the mean number of medication dropped from 3.75 ± 0.89 to 0.89 ± 0.98. Low postoperative complications were recorded.

Conclusion:

During the 3-year follow-up period, penetrating deep sclerectomy presented very positive outcome. The addition of a controlled perforation of the trabeculo-Descemet’s membrane in deep sclerectomy, playing the role of an early goniopuncture, seems to ensure a satisfactory outcome and is not associated with additional complications.
Diagnostic Efficacy and Safety of Gadoxetate Disodium vs Gadobenate Dimeglumine in Patients With Known or Suspected Focal Liver Lesions: Results of a Clinical Phase III Study
Authors: Zech Christoph J , Schwenke Carsten , Endrikat Jan
Published: February 2019

Purpose:

The aim of this study is to evaluate the diagnostic efficacy and safety of gadoxetate disodium vs gadobenate dimeglumine in patients with known or suspected focal liver lesions.

Methods:

This was a prospective, multicenter, double-blind, randomized, inter-individual Phase III study. The primary target—technical efficacy—was already published. Here, secondary efficacy parameters—sensitivity and specificity—and safety in specific patient populations are presented. Patients with suspected or known focal liver lesions scheduled for contrast-enhanced liver magnetic resonance imaging (MRI) were recruited and categorized in 4 a priori specified subgroups: (1) all patients, (2) patients with liver cancer (hepatocellular carcinoma [HCC]), (3) patients with cirrhosis, and (4) patients with HCC + cirrhosis. Dual multi-detector liver computed tomography (CT) served as standard of reference.

Results:

A total of 295 patients were included. While the overall increase in sensitivity across all 4 patient groups was comparable for gadoxetate disodium (increase from pre- to post-contrast ranging from 6.2% to 9.9%) and gadobenate dimeglumine (ranging from −2.9% to 10.0%), significant differences were seen for some of the subgroups. There was a significantly higher increase in sensitivity for gadoxetate disodium in patients with HCC (7%) and HCC + cirrhosis (12.8%) in comparison with gadobenate dimeglumine. Specificity decreased for both agents: gadoxetate disodium by −2.8% to −6.3% and gadobenate dimeglumine by −3.3% to −8.7%. Gadoxetate showed a significantly lower loss of specificity in all subgroups. Safety was comparable in both groups.

Conclusions:

Gadoxetate disodium proved to be an effective liver-specific MRI contrast agent. Some distinct advantages over gadobenate dimeglumine were demonstrated in patients with HCC and patients with HCC + liver cirrhosis for sensitivity and specificity in liver lesion detection.