bluuebunny/crossref_metadata_2025 huggingface dataset:
Insight on the endothelialization of small silk-based tissue-engineered vascular grafts
Authors: Cordelle Justine , Mantero Sara
Published: March 2020

Along with an increased incidence of cardiovascular diseases, there is a strong need for small-diameter vascular grafts. Silk has been investigated as a biomaterial to develop such grafts thanks to different processing options. Endothelialization was shown to be extremely important to ensure graft patency and there is ongoing research on the development and behavior of endothelial cells on vascular tissue-engineered scaffolds. This article reviews the endothelialization of silk-based scaffolds processed throughout the years as silk non-woven nets, films, gel spun, electrospun, or woven scaffolds. Encouraging results were reported with these scaffolds both in vitro and in vivo when implanted in small- to middle-sized animals. The use of coatings and heparin or sulfur to enhance, respectively, cell adhesion and scaffold hemocompatibility is further presented. Bioreactors also showed their interest to improve cell adhesion and thus promoting in vitro pre-endothelialization of grafts even though they are still not systematically used. Finally, the importance of the animal models used to study the right mechanism of endothelialization is discussed.
Punitive Exclusion and Therapeutic Support: Race, Gender, Class, and Multidimensional Control of High School Girls
Authors: Irwin Katherine
Published: March 2020

The 1980s brought a sharp upturn in punitive practices in U.S. schools. One negative result of harsh school discipline has been that poor students of color have been punished at disproportionate rates, with the racial disparity in sanctions being dramatic among girls. Some have argued that support services can undermine multiple inequalities in punitive exclusion, although very little research has examined how inequalities function in schools that offer support services as well as punishment. During a 13-year ethnography of girls’ experiences and school staff’s responses to students in one high school in Oahu, Hawai‘i, I found that school staff and girls had different definitions of safety. Elaborating on critical race, intersectional, and black feminist theories, I examine the disconnect between girls’ and staff’s understandings of school safety and offer a nuanced understanding of multiple exclusions in schools.
Information behaviour of prison inmates in Malawi
Authors: Gama Limbani Chrispin , Chipeta George T. , Phiri Austine , Chawinga Winner D.
Published: March 2020

The study examined the information behaviour of Mzimba prison inmates focusing on the research themes which are information needs, sources of information, and the barriers to seeking and using information of Mzimba prison inmates. A qualitative approach was used coupled with a case study design. Data were collected through focus group discussions and interviews from 12 inmates and two prison teaching staff respectively. The study found that health information, education information and spiritual information are the major information needs of Mzimba prison inmates. The study also found that the majority of respondents agreed that the six popular sources of information are their friends, teachers, radio, television, books and newspapers. However, the study concludes that Mzimba prison (library) fails to fulfil its role as a source of information and in meeting the information needs of inmates due to challenges of lack of information resources, limited time available for inmates to search for information, poor services and lack of funding for the school and library. The study recommends that the Malawi Prison Service should engage some stakeholders such as the Malawi National Library Services, National Initiative for Civic Education and Mzuzu University Library and Learning Resources Centre to support prison libraries with the provision of information resources to meet the information needs of inmates. The study further recommends that the Malawi Prison Service Command should lobby for financial support in order to hire qualified and capable librarians and teachers to manage prison libraries and schools.
A family of linear mixed-effects models using the generalized Laplace distribution
Authors: Geraci Marco , Farcomeni Alessio
Published: March 2020

We propose a new family of linear mixed-effects models based on the generalized Laplace distribution. Special cases include the classical normal mixed-effects model, models with Laplace random effects and errors, and models where Laplace and normal variates interchange their roles as random effects and errors. By using a scale-mixture representation of the generalized Laplace, we develop a maximum likelihood estimation approach based on Gaussian quadrature. For model selection, we propose likelihood ratio testing and we account for the situation in which the null hypothesis is at the boundary of the parameter space. In a simulation study, we investigate the finite sample properties of our proposed estimator and compare its performance to other flexible linear mixed-effects specifications. In two real data examples, we demonstrate the flexibility of our proposed model to solve applied problems commonly encountered in clustered data analysis. The newly proposed methods discussed in this paper are implemented in the R package nlmm.
Impact of Out of Pocket Health Expenditure on Consumption Pattern of Below Poverty Line Households in India
Authors: Panikkassery Anushree S.
Published: March 2020

Financial burden from health expenditure is a serious cause of concern for low-income and developing countries. Studies have shown that low public investment in health, lack of adequate safety net mechanisms and poor quality of public health system in these countries are few basic grounds for placing high financial burden on people. In order to make both ends meet during illness, poor people resort to various alternative means. One of the popular strategies adopted is to reduce or reallocate the consumption bundle, so as to meet the medical expenditure. The impact of out of pocket (OOP) health expenditure on the consumer expenditure has immediate and direct impact especially among the poor sections of the society. This article aims to study the impact of out of pocket health expenditure on the constituents of consumer expenditure and how the composition of consumer expenditure differs with the levels of out of pocket expenditure among different consumption quintiles. The study uses IHDS household level survey data for the year 2011–2012. A mean comparison test is carried out to check whether significant difference exists in the consumption bundles of households with and without medical expenditure. A system of Engel curves is estimated with seemingly unrelated regression equation (SURE) to study the impact of out of pocket medical expenses on the consumption bundle. The results show that there exists significant difference in the share of different consumption items in the consumption bundles of households with and without out of pocket expenditure. Despite having larger share for food expenditure, poor households tend to protect the consumption of food share in the bundle. Compensation for rise in medical expenses is reflected in the reduced share of non-food expenditure items like fuel, education, entertainment, clothing and footwear. With high share of out of pocket expenditure, poor households in the states with high public health expenditure mainly reduced their education expenditure whereas consumption of most of the non-food items were reduced by poor households in low public health expenditure states.
Survival of the Smallest: A Study of Microenterprises in Haryana, India
Authors: Mor Surender , Madan Sonu , Archer Geoffrey R. , Ashta Arvind
Published: March 2020

The present study investigates the sustainability of microenterprises using primary data on 222 microenterprises in the informal small business segment of India. We identified relevant factors inducing entrepreneurs to sustain their business despite facing challenges emerging in the business world from time to time. The findings indicate that microenterprises with higher initial capital investment and those run by more experienced entrepreneurs have more chances for their long-run survival. The findings further indicate that the attainment of higher education is unrelated to long-term survival in the microbusiness world, perhaps because it opens more options of livelihood leading to exploration and experimentation of other areas of work engagement. The probability of long-run survival is higher in manufacturing microenterprises as compared to trading and services, likely because manufacturing experiences less volatility in this penurious context. Finally, microenterprises managed by males have better chances of long-run sustainability than female-operated microbusinesses.
Through the looking-glass: private and public practice psychiatry in the RANZCP
Authors: Looi Jeffrey C L , Atchison Michelle
Published: March 2020

Objective:

To provide reflections on the representation of and engagement with private practice psychiatrists by the Royal Australian and New Zealand College of Psychiatrists (RANZCP).

Conclusion:

We consider some of the reasons for private psychiatrist disengagement with the RANZCP. We suggest approaches to better engage private psychiatrists in the RANZCP, including: involvement in mental health policy, improved committee representation, specific private practice and business training for Fellowship, broader private practice peer support networks (welfare, clinical research, leadership), tailored professional development, branch-based networks of public and private psychiatrists, and collaboration with specialist medical colleges and the Australian Medical Association.
Mechanical optimization of a novel hollow traveling wave rotary ultrasonic motor
Authors: Ren Weihao , Yang Mojian , Chen Liang , Ma ChengCheng , Yang Lin
Published: March 2020

A novel hollow type of traveling wave rotary ultrasonic motor is proposed, optimized, fabricated, and tested in this study. Unlike conventional ultrasonic motors, this novel ultrasonic motor adopts a bran-new preloading method that preload is applied from the bottom of the stator through a wave spring, which can not only enhance the anti-overload ability but also extend the working life of the motor. According to this motor, a three-dimensional finite element model has been built by the commercial finite element software ADINA. In terms of the friction material and the preload, a detailed further optimization procedure is given after the initial design. Finally, the appropriate size and location of the friction layer and a proper preload for this motor have been determined. Almost all of the motor’s mechanical capacities, such as rotational speed, torque, and deformation, can be obtained by simulations in ADINA, which have good agreement with experimental results.
Scientific Journalism as an Educational Practice: An Experience Report of the Collective Construction of a “Science Clothesline”
Authors: Galvão Tássia , Felicio Cinthia Maria , Ferreira Júlio César , Noll Matias
Published: March 2020

The aim of this study is to analyze how students understand scientific dissemination. Educational practice has shown that texts from traditional communication vehicles are attractive to students, and furthermore, students understood topics covered in the resources, assessing the language as simple and easy to understand. The applied methodology and the means of carrying out the activities contributed to a more dynamic learning environment in which possibilities permeated the connections between the proposed content and the students’ daily lives, thus facilitating the understanding of scientific subjects by the students. One of the biggest difficulties was the writing component of the activities.
The Pictures in Their Heads: How U.S. Mayors Think About Racial Inequality
Authors: Einstein Katherine Levine , Godinez Puig Luisa , Piston Spencer
Published: March 2020

Many scholars examine what role cities can play in addressing racial inequality. Yet existing research presents little direct evidence of local political elites’ perceptions of racial inequality and preferred strategies to address it. Which mayors perceive racial inequality to be a problem in their cities, and which mayors prefer substantive rather than symbolic solutions to this problem? To answer this question, we survey more than 100 mayors of large and mid-sized American cities. We find that, while a sizable proportion of mayors advocate for policy change, many others either deny that racial inequality exists, claim that they do not have control over racial inequality, or promote symbolic dialogues about race. Democratic mayors are substantially more likely to acknowledge racial inequality in a variety of domains. Non-White mayors and mayors of cities facing larger racial income inequality are also somewhat more aware of racial inequality, although the relationship is less consistent. Perceptual screens may prevent many mayors from pursuing vigorous policy solutions to racial inequality.
Are You Picking Up What I Am Laying Down? Ideology in Low-Information Elections
Authors: Holman Mirya R. , Lay J. Celeste
Published: March 2020

In November 2017, New Orleans elected the first woman, and first Black woman, mayor in the city’s history. Voters were unable to rely on gender, race, or partisanship to differentiate between the candidates in the race. How, then, do voters make decisions absent traditional heuristics? Using an analysis of campaign materials and two-wave panel survey, we show that the candidates sent ideological signals with endorsements and issue foci and that voters responded by placing the candidates ideologically. Those voters who could not differentiate between the candidates’ ideologies were less likely to turn out to vote and took longer to decide in the elections. Using a new measure of relative ideological distance adopted for multicandidate races, we show that the distance between each voter and the nearest candidates correlated with vote choice. Our results add to our knowledge of voting behavior and the use of ideology in local elections.
Do we need prophylactic anticoagulation in ambulatory patients with lung cancer? A review
Authors: Dimakakos Evangelos , Kotteas Elias , Gomatou Georgia , Katsarou Theodora , Vlahakos Vassilis , Vathiotis Ioannis , Talagani Sofia , Dimitroulis Ioannis , Syrigos Konstantinos
Published: March 2020

Venous thromboembolism is a common complication of malignancy. Lung cancer is considered one of the most thrombogenic cancer types. Primary thromboprophylaxis is not currently recommended for all ambulatory patients with active cancer. In the present narrative review we aim to summarize recent data on the safety and efficacy of primary thromboprophylaxis as well as on venous thromboembolism risk assessment, focusing on ambulatory patients with lung cancer. A potential benefit from prophylactic anticoagulation with low molecular weight heparins in terms of venous thromboembolism risk reduction and increased overall survival in patients with lung cancer, without a significant increase in bleeding risk, has been reported in several studies. Recent studies also reveal promising results of direct oral anticoagulants regarding their efficacy as primary thromboprophylaxis in patients with cancer, including those with lung cancer. However, the use of different study methodologies and the heterogeneity of study populations among the trials limit the extraction of definite results. More randomized, controlled trials, restricted to a well-characterized population of patients with lung cancer, are greatly anticipated. The use of risk assessment tools for stratification of venous thromboembolic risk is warranted. The development of an accurate and practical risk assessment model for patients with lung cancer represents an unmet need.
Doing things differently: Exploring attachment patterns and parental intentions in families where a child has a diagnosis of autism
Authors: Bond Nicholas , Dallos Rudi , McKenzie Rebecca
Published: March 2020

The article examines the experience of parenting a child with a diagnosis of autism with a focus on scripts and intentions in relation to the parents’ own childhood experiences of being parented. Five parents participated in a multiple case study design involving in-depth interviews, Adult Attachment Interviews and a parenting intentions scaling task. The findings revealed that all of the parents had experienced significant adverse events in their own childhoods, including trauma and losses. They also expressed intentions to offer parenting that was ‘corrective’ in terms of providing a better emotional environment for their children. Their corrective attempts and also intentions to repeat positive aspects of being parented were moderated by unconscious aspects of their early childhood experiences and also by the autistic features of their children. The interplay between early embodied experiences, theories of autism, parenting experiences and intentions is discussed along with clinical implications.
‘Strike a pose’: Fabricating posthumous presence in mannequin design
Authors: Davies Cath
Published: March 2020

Interviewed in 2004, designer duo Viktor and Rolf outlined their ambivalence towards fashion exhibitions suggesting that ‘somehow life is taken out of the subject’ (2008, cited in Teunissen, ‘Understanding Fashion through the Museum in Melchior, MR, 2014). Garments seeking spectator attention within the museum space are often perceived as static entities devoid of their original function as embodied artefacts. There is no denying an inert aura pervades listless materials that have supposedly lost their agency, now confined to the vaults of the museum-as-mausoleum. In their re-purposed role of performing as reminders of a life now departed, this article considers curatorial strategies that seek to revive a living presence in garment display with specific reference to the remodelling of Frida Kahlo in the V&A exhibition ‘Frida Kahlo: Making Her Self Up (2018).’ Addressing Dudley’s suggestion in Museum Objects: Experiencing the Properties of Things (2012: 19) that an artefact’s ‘fundamental material characteristics’ should be at the heart of contextual interpretation, the role that an object’s material properties can play in the re-materializing of embodiment is evaluated.

In the V&A exhibition, a narrative emerges on clothing as an agent that conceals vulnerable corporeality. Sartorial practices armoured Kahlo’s body and the role material entities can play in containing and preserving the illusion of corporeal substance will be investigated. Given this premise, it seems wholly appropriate to focus on the contribution that the mannequin can make to this conceptual framework. After all, it is an artefact with a central occupation of establishing bodily integrity in the display of clothing. Reiterating Clark’s suggestion in The Textile Reader (2012) that the mannequin contributes to the vocabulary of a curatorial brief, this article proposes that this artefact can interrogate the tensions that exist between Kahlo’s sartorial practices and her abject body. Substantiating Appadurai’s premise of material objects’ agency in The Social Life of Things (2001[1986]), the exhibition arguably employs the once humble tailor’s dummy in a significant role, thereby reconstructing its dominant function of embodying fabric in the museum.
A ‘good job’ in difficult conditions: Detectives’ reflections, decisions and discriminations in the context of ‘joint enterprise’
Authors: Young Tara , Hulley Susie , Pritchard Gary
Published: March 2020

‘Joint enterprise’ is described as a ‘dragnet’ that draws disproportionate numbers of black and minority ethnic young men into the criminal justice system in England and Wales. While stereotyping by the police and prosecution has been blamed for this distributive injustice, empirical research on joint enterprise is limited. This article presents the findings from a study of homicide and ‘gang’ detectives in London in which they rebut accusations of racial stereotyping when investigating multi-handed crimes. Instead, they claim that the disproportionality reflects the involvement of larger numbers of primarily black men in violent crime. Using Margaret Archer’s social realist theory, detectives frame their actions as being driven by their ‘ultimate concerns’ to do a good job of protecting the public and obtaining justice for victims within the difficult social and cultural context in which they operate. However, in this article, we expose the racialized notions of risk in detectives’ narratives and argue that such ‘colour-blind racism’ is likely to contribute to young black and mixed-race men being overrepresented in cases that draw on the principles of joint enterprise dragging those on the periphery of group violence into the criminal justice net.
Local buckling of rectangular concrete-filled steel tubular columns with binding bars under eccentric compression
Authors: Wan Jun , Cai Jian , Long Yue-Ling , Chen Qing-Jun
Published: March 2020

Based on the energy method, this article presents a theoretical study on the elastic local buckling of steel plates in rectangular concrete-filled steel tubular columns with binding bars subjected to eccentric compression. The formulas for elastic local buckling strength of the steel plates in eccentrically loaded rectangular concrete-filled steel tubular columns with binding bars are derived, assuming that the loaded edges are clamped and the unloaded edges of the steel plate are elastically restrained against rotation. Then, the experimental results are compared with these formulas, which exhibits good agreement. Subsequently, the formulas are used to study the elastic local buckling behavior of steel plates in rectangular concrete-filled steel tubular columns with binding bars under eccentric compression. It is found that the local buckling stress of steel plates in eccentrically loaded rectangular concrete-filled steel tubular columns with binding bars is significantly influenced by the stress gradient coefficient, width-to-thickness ratio, and the longitudinal spacing of binding bars. With the decrease of width–thickness ratios or the longitudinal spacing of binding bars or with the increase of the stress gradient coefficient, the local buckling stress increases. Furthermore, the influence of the longitudinal spacing of binding bar is more significant than the stress gradient coefficients. Finally, appropriate limitation for depth-to-thickness ratios ( D/ t), width-to-thickness ratios ( B/ t), and binding bar longitudinal spacing at various stress gradient coefficients ( α0) corresponding to different cross-sectional aspect ratios ( D/ B) are suggested for the design of rectangular concrete-filled steel tubular columns with binding bars under eccentric compression.
A Swedish translation and validation of the Mother-to-Infant Bonding Scale
Authors: Mörelius Evalotte , Elander Anna , Saghamre Emmy
Published: March 2020

Aim: This study aimed to test initial validity, reliability, and feasibility of the Mother-to-Infant Bonding Scale in a sample of Swedish mothers. Methods: A translation was performed through 11 steps using a forward–backward bilingual technique. For criterion validity, the Swedish translation of the Mother-to-Infant Bonding Scale (S-MIBS) was compared with the Postpartum Bonding Questionnaire, sub-scale 1 (PBQ1) and 2 (PBQ2) and Edinburgh Postnatal Depression Scale (EPDS) in a sample of 63 Swedish mothers. Internal consistency was calculated with Cronbach’s alpha. For feasibility testing, the mothers were asked to grade their experience of S-MIBS and PBQ on a four-point scale. Results: The results show a correlation between S-MIBS and PBQ1 ( r=0.80, p<0.001), PBQ2 ( r=0.69, p<0.001) and EPDS ( r=0.44, p<0.001). Internal consistency was α=0.68. Most mothers (93.1%) found S-MIBS to be easy or very easy to complete compared with PBQ (88.7%). Conclusions: The initial testing of the Swedish translation of the Mother-to-Infant Bonding Scale shows usability to measure the mother’s emotions towards her healthy full-term infant.
Gaming alone: Videogaming and sociopolitical attitudes
Authors: Bacovsky Pavel
Published: March 2020

What sustains prosocial attitudes and political engagement in the era of online connectivity? Scholars disagree on whether frequent consumers of virtual entertainment disconnect from sociopolitical life. Using the Swedish Political Socialization Panel dataset and partial-pool time series methodology, I investigate the relationship between playing videogames and adolescents’ political and social attitudes over time. I find that those gamers who spend more time engaging in their favorite pastime become less interested in sociopolitical issues and less prosocial than non-gamers from year to year. My findings tell a cautionary tale about the adverse effects of extensive gaming on the development of democratic attitudes among adolescents.
Response of a direct-drive large marine two-stroke engine coupled to a selective catalytic reduction exhaust aftertreatment system when operating in waves
Authors: Foteinos Michael I , Christofilis George I , Kyrtatos Nikolaos P
Published: March 2020

Large two-stroke marine diesel engines are used as the prime mover in the majority of ocean going commercial vessels and are currently facing new stringent NOx emission reductions. Selective catalytic reduction is an aftertreatment technology which is able to reduce emitted NOx at allowable levels. In most marine applications, the selective catalytic reduction system is placed on the high pressure side of the turbine, due to limitations at the exhaust gas temperature at the inlet of selective catalytic reduction system. In this article, the operation of a large two-stroke marine diesel with a selective catalytic reduction aftertreatment system, is investigated in heavy weather conditions. Operation of a vessel in heavy weather results in increased ship resistance, wave-induced ship motions, and a highly varying flow field in the propeller due to ship motions. This results in a fluctuation of propeller demanded torque and hence a fluctuation in engine load and exhaust gas temperature which may affect engine and selective catalytic reduction performance significantly. To investigate this phenomenon and taking into account the engine–propeller interaction, the entire propulsion system was modeled, namely the propulsion engine, the high pressure selective catalytic reduction system, the directly driven propeller, and the ship’s hull. A propeller model was employed to simulate the transient propeller torque demand and torque fluctuations due to ship motions. A three-dimensional six degrees of freedom panel code was used to calculate ship motions and wave added resistance in regular waves. The coupled model of the marine propulsion plant was validated against available measured data from a ship-board propulsion system on good weather conditions. The model was then used to simulate the behavior of the system during transient loading conditions in the presence of regular waves.
Experimental investigation on coupled cross-flow and in-line vortex-induced vibration responses of two staggered circular cylinders
Authors: Zhang Cheng , Kang Zhuang , Xiong Yeping , Ai Shangmao , Ma Gang
Published: March 2020

In order to better understand the vortex-induced vibration mechanism of multiple cylinders, this article takes a relatively simple case of two staggered circular cylinders as the embarkation point and investigates their vortex-induced vibration characteristics by model test. The experimental Reynolds number ranges from 22,000 to 88,000. The in-line gap L is set as 3.0 D, 3.6 D, 4.2 D and 5.5 D in turn, and the cross-flow gap T is set as 0.7 D, 1.1 D, 1.5 D, 1.9 D, 2.3 D and 2.7 D, respectively. By measuring the vibrating response in model test, the response differences between the two staggered cylinders and the isolated cylinder and the effects of the gaps are discussed. The results indicate that the variation trend of response of the upstream cylinder with reduced velocity is basically similar to that of the isolated cylinder. However, the downstream cylinder shows some great differences. When the in-line gap ratio L/ D is 3.6, the cross-flow amplitude curve of downstream cylinder changes from “single peak” to “double peaks” with the increase in cross-flow gap ratio T/ D, and in-line amplitude curve even shows four different kinds of forms. When L/ D is increasing, maximum amplitudes of the downstream cylinder in two directions also show an increasing trend, and the wake galloping phenomenon even appears in some conditions. Generally, the case of staggered cylinders is a generalized combination of two circular cylinders in tandem and side-by-side arrangements, and this article has extended the research scope of the double-cylinder vortex-induced vibration to arbitrary flow direction.
A novel multi-label classification algorithm based on K-nearest neighbor and random walk
Authors: Wang Zhen-Wu , Wang Si-Kai , Wan Ben-Ting , Song William Wei
Published: March 2020

The multi-label classification problem occurs in many real-world tasks where an object is naturally associated with multiple labels, that is, concepts. The integration of the random walk approach in the multi-label classification methods attracts many researchers’ sight. One challenge of using the random walk-based multi-label classification algorithms is to construct a random walk graph for the multi-label classification algorithms, which may lead to poor classification quality and high algorithm complexity. In this article, we propose a novel multi-label classification algorithm based on the random walk graph and the K-nearest neighbor algorithm (named MLRWKNN). This method constructs the vertices set of a random walk graph for the K-nearest neighbor training samples of certain test data and the edge set of correlations among labels of the training samples, thus considerably reducing the overhead of time and space. The proposed method improves the similarity measurement by differentiating and integrating the discrete and continuous features, which reflect the relationships between instances more accurately. A label predicted method is devised to reduce the subjectivity of the traditional threshold method. The experimental results with four metrics demonstrate that the proposed method outperforms the seven state-of-the-art multi-label classification algorithms in contrast and makes a significant improvement for multi-label classification.
Ocular Metastasis in Elderly Male Bladder Cancer Patients: Potential Risk Factors
Authors: Xu Qian-Hui , Yuan Qing , Zhang Yu-Qing , Li Biao , Min You-Lan , Ge Qian-Min , Liang Rong-Bin , Shao Yi
Published: March 2020

Bladder cancer is a common type of tumor among elderly male population; it causes intraocular metastasis (IOM). The study investigated the differences between elderly male bladder cancer patients with and without IOM, and identified risk factors for IOM. In this study, 749 elderly male patients (aged ≥50 years) with bladder cancer were included from November 2003 to December 2016. Differences between the IOM and non-IOM (NIOM) groups were evaluated by chi-square test and Student’s t-test. The binary logistic regression analysis calculates the risk factors. Receiver operating characteristic (ROC) curve analysis was used to assess the diagnostic value of IOM in elderly male patients with bladder cancer.

The incidence of IOM in patients with bladder cancer was 1.7%. No significant differences were detected in age and histopathology between the IOM and NIOM groups. According to the study, the IOM group had higher ALP and Cyfra21-1. Binary logistic regression indicated that ALP and Cyfra21-1 were risk factors for IOM in elderly male bladder cancer patients ( p < .05). ROC curve analysis revealed area under the curve values for ALP and Cyfra21-1 of 0.913 and 0.814, using cutoff values of 9.65 and 83.5 U/L, respectively. The sensitivity and specificity values for ALP were 61.5% and 95.8%, respectively, while those for Cyfra21-1 were 84.6% and 73.3%.

The investigation indicates that ALP and Cyfra21-1 are risk factors for IOM in elderly male patients with bladder cancer and ALP is more reliable at distinguishing IOM from NIOM in elderly male patients with bladder cancer.
Close distance. Social segregation in trading empires and colonies—An introduction
Authors: Zwierlein Cornel , Wagner Florian
Published: March 2020

The history of segregation is usually concentrating on modern racial forms of it, in colonial settings or in large urban conglomerates. Mathematical definitions of segregation refer to the ratio between the type of segregated element (e.g. Blacks) in a given larger area and its sub-area. We are suggesting that pre-modern as well as postcolonial forms of segregation are far less determined by this space/race-alignment. For a long-term history of segregation concerned with many other dominating themes and objects of segregation (such as religion, non-racist ethnicity), we propose to concentrate on the fluid cognitive dimension of what segregation is, close distance: ‘distance’ can refer to physical space, but it is also far more open to cognitive forms of distance. ‘Closeness’ aims to draw attention to the fact that both the processing and enacting of separation and difference, from the early to the late period of colonialization, may have nothing to do with how far away or how close together people actually live. Ignorance and ignoring are one of the most important elements of this epistemic core of segregational behaviour and of what creates close distance in societies.
Complementary ensemble adaptive sparsest narrow-band decomposition method and its applications to the gear crack fault diagnosis
Authors: Peng Yanfeng , Chen Junhang , Luo Ruiqiong , Xie Xiaojun , Zhu Xianyu , Liu Yanfei , Lu QingHua , He Kuanfang
Published: March 2020

Adaptive sparsest narrow-band decomposition is the most sparse solution to search for signals in the over-complete dictionary library containing intrinsic mode functions, which transform the signal decomposition into an optimization problem, but the calculation accuracy must be improved in the case of strong noise interference. Therefore, in combination with the algorithm of the complementary ensemble empirical mode decomposition, a new method of the complementary ensemble adaptive sparsest narrow-band decomposition is obtained. In the complementary ensemble adaptive sparsest narrow-band decomposition, the white noise opposite to the paired symbol is added to the target signal to reduce the reconstruction error and realize the adaptive decomposition of the signal in the process of optimizing the filter parameters. The analysis results of the simulation and experimental data show this method is superior to complementary ensemble empirical mode decomposition and adaptive sparsest narrow-band decomposition in inhibiting the mode confusion, endpoint effect, improving the component orthogonality and accuracy, and effectively identifying the gears fault types.
Utility of color flow Doppler ultrasound to identify peripheral intravenous catheter position in adult surgical patients
Authors: Riveros-Perez Efrain , Albo Camila , Guzzo Eduardo , Sanchez Maria Gabriela , Yang Nianlan , Rocuts Alexander
Published: March 2020

Objective:

To evaluate color flow Doppler flow ultrasound compared to standard clinical techniques, to detect the intravascular position of peripheral intravenous catheters in adult surgical patients.

Methods:

A prospective study was conducted in adult (>18 years old) patients scheduled to undergo elective surgery. Peripheral intravenous catheter position was evaluated with standard clinical techniques (free flow of fluid from a hanging bag, easy saline injection, and aspiration of blood), and with color flow Doppler ultrasound proximal to the insertion site to identify intravascular catheter position. Comparative test performance was carried out.

Results:

In total, 174 patients were enrolled. The venous catheter was deemed to be intravascular in 92.53% ( n = 161) and 90.23% ( n = 157) based on clinical evaluation and color flow Doppler, respectively ( p = 0.206). Moderate to substantial agreement between the two approaches was found. Cohen’s kappa was 0.64 (95% CI 0.43–0.83). Specificity of clinical judgment to detect catheter extravascular position was only 58.82%, when the color flow Doppler technique was set as the gold standard. Free flow from a hanging bag method showed the best agreement with color flow Doppler to determine intravascular position of a catheter ( p = 0.3173, kappa = 0.68), with sensitivity of 98.09% and specificity of 64.71%.

Conclusion:

Color flow Doppler is a specific tool complementary to sensitive clinical indicators to detect peripheral venous catheter infiltration. The ability of color flow Doppler to accurately determine the position of a peripheral venous catheter depends on experience and familiarity with the tool by providers, who can master the technique with education and training.
Malignant priapism: Review of the report in three decades
Authors: Hosny Khaled , Nosseir Mahmoud , Pearce Ian
Published: March 2020

Introduction:

Priapism is one of the few critical male urological emergencies. There are two main types of priapism, low flow/venous and high flow/arterial priapism. Malignant priapism is a rare subtype of low flow priapism usually secondary to pelvic malignancy, but other extra-pelvic primary cancers cannot be completely excluded.

Aim:

To assess and highlight the poor prognosis of malignant priapism, with a view to directing management towards both symptomatic relief and improving patients’ quality of life.

Method:

All reports of malignant priapism between 1998 and 2018 were searched and assessed focusing on the primary cancer, duration of complaint, associated symptoms, method of management and prognosis.

Conclusion:

Malignant priapism is a rare form of ischaemic priapism, resistant to successful therapies utilized in the management of other forms of ischaemic priapism. Urological cancers are the most common primaries implicated with the most commonly associated symptoms being pain and urinary symptoms. In the absence of any evidence based guidelines and reliably successful treatment options, clinicians should aim to employ supportive treatment strategies including adequate analgesia.

Level of evidence:

level4
Accurate Empathy, Social Rejection, and Social Anxiety Disorder
Authors: Auyeung Karen , Alden Lynn E.
Published: March 2020

We conducted two studies to examine the relationship between social anxiety ( n = 134) and social anxiety disorder (SAD; n = 126), social exclusion, and empathic accuracy. Participants were randomly assigned to either a control or an exclusion condition and then observed four videos of targets discussing high school experiences in which they were socially excluded. Participants’ ratings of targets’ emotions while discussing those experiences were compared with targets’ self-ratings. Results of both studies indicated that individuals with social anxiety and SAD displayed greater empathic accuracy than control subjects and that exclusion did not affect that relationship. State measures of participants’ emotional and cognitive reactions to targets mediated the association between SAD and accuracy. When asked to provide advice to targets, SAD participants provided fewer responses overall and fewer suggestions that promoted relationship repair. Thus, they were less able to translate their empathic responses for social pain into prosocial action.
Older Adult Productive Activity Participation Using the National Health and Aging Trends Study
Authors: Marfeo Elizabeth E. , Ward Caroline
Published: March 2020

This study aims to characterize factors related to productive activity participation among community-dwelling older adults. Cross-sectional analyses using data from the National Health and Aging Trends Study were used to calculate weighted frequencies representative of the U.S. population of older adults. Multivariate logistic regression was used to explore factors related to participation outcomes (paid work, volunteering, caregiving). We found that 21% of community-dwelling older adults in the United States reported currently working. Older adults reported working in a wide range of occupations. Driving emerged as one of the most important factors related to increased odds of productive activity participation. Age, gender, and health factors were also significantly associated with increased odds of productive activity participation. By understanding the current profile of participation in activities including employment, caregiving, and volunteering among a national sample of community-dwelling older adults, we can effectively inform intervention programs and resource allocation to support productive aging.
Assessment of landscape changes under different urban dynamics based on a multiple-scenario modeling approach
Authors: Xu Chao , Haase Dagmar , Su Meirong , Wang Yutao , Pauleit Stephan
Published: March 2020

In the context of rapid urbanization, it remains unclear how urban landscape patterns shift under different urban dynamics, in particular taking different influencing factors of urban dynamics into consideration. In the present study, three key influencing factors were considered, namely, housing demand, spatial structure, and growth form. On this basis, multiple urban dynamic scenarios were constructed and then calculated using either an autologistic regression–Markov chain–based cellular automata model or an integer programming-based urban green space optimization model. A battery of landscape metrics was employed to characterize and quantitatively assess the landscape pattern changes, among which the redundancy was pre-tested and reduced using principal component analysis. The case study of the Munich region, a fast-growing urban region in southern Germany, demonstrated that the changes of the patch complexity index and the landscape aggregation index were largely similar at sub- and regional scales. Specifically, low housing demand, monocentric and compact growth scenarios showed higher levels of patch complexity but lower levels of landscape aggregation, compared to high housing demand, polycentric and sprawl growth scenarios, respectively. In contrast, the changes in the landscape diversity index under different scenarios showed contrasting trends between different sub-regional zones. The findings of this study provide planners and policymakers with a more in-depth understanding of urban landscape pattern changes under different urban planning strategies and its implications for landscape functions and services.
Extraction, entanglements, and (im)materialities: Reflections on the methods and methodologies of natural resource industries fieldwork
Authors: Johnson Organizing Editors Adrienne , Zalik Anna , Mollett Contributors Sharlene , Sultana Farhana , Havice Elizabeth , Osborne Tracey , Valdivia Gabriela , Lu Flora , Billo Emily
Published: March 2020

This multi-authored collection of papers examines the complex realities of research on natural resource industries, including the messy entanglements of extraction, materiality, and everyday social life this research entails. Of central importance to the contributors is how scholars confront fieldwork challenges ethically, methodologically, and corporeally. The collection has two key objectives. First, it expands our understanding of extractive industry by bringing together work on resources conventionally understood as extractive (e.g. oil and minerals) alongside resource-intensive industries not typically examined through an extractive lens, for instance fisheries, agricultural monocultures, water, and tourism. As such, it considers the historical and current conditions that facilitate the extraction of resources in parallel, cyclical, and reproducing forms. Second, the collection examines scholarly positionalities, methodologies, and dilemmas that arise when studying nature-intensive industries, including the extractive dimensions associated with social research itself. Together, the pieces argue that research concerning extractive industries entails multiple scholarly positions—positions problematically inflected with colonialism and always shaped by power relations. Contributors to the section draw largely from feminist, postcolonial, anti-racist, and historical materialist insights to frame and problematize the corporeal and representational concerns arising from their scholarship on nature-intensive industries, including personal dilemmas that they have encountered in their work. Overall, the collection is driven by the realization that research, and the analyses it entails, may serve as a tool for emancipatory intervention yet also reproduce inequality. The futures of the people and ecosystems at the center of our studies impel constant reflection so that our work, and that of the next generation of scholars, may offer critical analysis that contributes to transforming—rather than reinforcing—oppressive relations associated with extractive sectors and industries.
Database of rocking shallow foundation performance: Dynamic shaking
Authors: Gavras Andreas G , Kutter Bruce L , Hakhamaneshi Manouchehr , Gajan Sivapalan , Tsatsis Angelos , Sharma Keshab , Kohno Tetsuya , Deng Lijun , Anastasopoulos Ioannis , Gazetas George
Published: March 2020

Several experimental studies have shown that rocking shallow foundations have beneficial seismic performance features: recentering and energy dissipation with little damage. A new publicly available database, “FoRDy” (Foundation Rocking—Dynamic), summarizes the results of dynamic physical model tests of single-degree-of-freedom-like structures supported on rocking foundations. It contains data from five centrifuge and three 1- g shaking table test series that were conducted at experimental facilities in the United States, Greece, and Japan. The database includes 200 model “case histories” that span a wide range of model sizes, soil and structure properties, and seismic excitations. It is compiled as the first step toward building a comprehensive dynamic rocking foundation database, and it has the potential to grow in the future. To illustrate its usefulness, the data are used to show example correlations between the peak drift ratio demand and selected ground motion intensity measures. The results suggest that peak ground velocity (PGV), peak ground displacement (PGD), and the geometric mean of the linear spectral displacement over the period range of 0.2–3 times the initial natural period predict the peak drift ratio response reliably.
Scheduling Ultrasound Examinations to Reduce the Risk of WRMSDs in Sonographers
Authors: Chapman Joann
Published: March 2020

Work-related musculoskeletal disorders (WRMSDs) are a costly problem within the sonography profession, affecting health care organization bottom lines, sonographer satisfaction, and the patient experience. There is limited evidence regarding the limits of exposure to sonography examinations that would reduce on-the-job injury. This case study demonstrates the use of examination schedules that incorporate demand, length and difficulty level of examinations, staffing resources, and equipment availability, which may help to determine appropriate or maximum workloads for sonographers within their respective workplace. Developing a culture of prevention is a critical and cost-effective component of reducing WRMSDs.
Correction to: Preparation and properties of a coniferin enantiomer
Authors: Maeda Haruka , Tsuyama Taku , Takabe Keiji , Kamitakahara Hiroshi , Takano Toshiyuki
Published: March 2020

In the original publication of the article, the letter “l” in the section headings was published incorrectly as “l”. It should appear as “l” throughout the article.