bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improving Resistance‐Temperature Characteristic of Polyethylene/Carbon Black Composites by Poly(3,4‐Ethylenedioxythiophene)‐Functionalized Multilayer Graphene
Authors: Shi Guangfa , Cai Xiaomin , Wang Wenqiang , Wang Gengchao 
Published: June 2020

AbstractPolymeric positive temperature coefficient (PTC) materials can be used to install “brake” technology for the thermal runaway of lithium‐ion batteries. However, it still has poor cycle stability and obvious negative temperature coefficient (NTC) effect, which reduces the reliability of the material. In order to solve these problems, conductive polymer poly(3,4‐ethylenedioxythiophene) (PEDOT) modified multilayer graphene (MLG) conductive additive (PEDOT‐MLG) is introduced into middle density polyethylene/carbon black (MDPE/CB) system. Compared with the conventional modification, the PEDOT modified MLG shows high conductivity and excellent thermal stability. In addition, the introduction of PEDOT‐MLG into MDPE/CB can further reduce the room temperature resistivity due to the good compatibility between the modified graphene and the matrix, thus improving the PTC intensity to 7.1. What is more, MLG limits the re‐aggregation of CB particles when the temperature further rises, which effectively weakens the NTC effect.
Highly Stretchable Tough Elastomers Crosslinked by Spiropyran Mechanophores for Strain‐Induced Colorimetric Sensing
Authors: Cao Ziquan 
Published: June 2020

AbstractColorimetric spiropyran as a promising mechanophore has proven to be useful in visualizing stress/strain sensing and damage warning in polymeric materials. However, it remains challenging to prepare spiropyran‐containing mechanochromic materials with excellent mechanical properties. Herein, highly stretchable and tough double‐network elastomers crosslinked by spiropyran mechanophores are reported. The spiropyran‐crosslinked elastomer features both force and UV light‐induced color changes originating from the structural transformation from ring‐close spiropyran form to ring‐open merocyanine form of the mechanophores, and excellent mechanical properties (favorable elasticity of 480 kPa, large stretchability of 3400% strain, and high toughness of 8.4 kJ m−1) benefiting from the energy dissipation by breakage of sacrificial bonds. In particular, it is demonstrated that the multi‐mechanoresponsive and mechanically strong elastomer can be served as a conceptual sensor to quantify mechanical stretchability by a visible color change. This work shows promising potential for mechanochemical sensing applications.
Electromechanically Active As‐Electrospun Polystyrene Fiber Mat: Significantly High Quasistatic/Dynamic Electromechanical Response and Theoretical Modeling
Authors: Ishii Yuya , Yousry Yasmin Mohamed , Nobeshima Taiki , Iumsrivun Chonthicha , Sakai Heisuke , Uemura Sei , Ramakrishna Seeram , Yao Kui 
Published: June 2020

AbstractFlexible and lightweight pressure sensors have attracted tremendous attention as a promising component of wearable biological motion sensors and artificial electronic skins. Here, the electromechanical response of as‐electrospun fiber mats composed of a commodity polymer, atactic polystyrene, which can be applied in low‐cost/large‐area, flexible, and lightweight pressure sensors is demonstrated. The fiber mat demonstrates a significantly high apparent converse piezoelectric constant of >30 000 pm V−1 under static measurement and ≈13 000 pm V−1 even at a high frequency of 1 kHz. The first theoretical model to explain the unique electromechanical response is constructed, which reveals that the softness and moderate charge of the fiber mat are the reasons for the significantly high electromechanical response. Further, apparent piezoelectric constants obtained by direct measurement are lower than those obtained by the converse measurement, which is attributed to the densification and hardening of the fiber mat due to prepressure applied in direct measurement. These findings are likely to serve as a milestone for the development of large‐area, flexible, and lightweight pressure sensors at low cost, as well as highly movable actuators like optical modulators without a substantial mechanical load.
Real‐time low cost compact liquid‐water binary mixture monitoring sensor
Authors: Khuhro Sadam H. , Sandhu Muhammad Y. , Afridi Sharjeel , Ahmed Arslan 
Published: June 2020

AbstractThis work proposes a novel method for detecting the concentration of water present in liquid‐water binary mixture in real time with a low cost, portable measurement setup. The sensing element in the proposed system is a two‐port microstrip bandstop resonator based on coupled line open‐ended quarter wavelength section. Voltage control oscillator and power detector ICs are used to generate and detect the microwave power at specific bandstop frequency. Water concentrations in commercially available liquids are monitored both in batch and continuous mode of operation using separate 3D printed liquid containing fixtures attached to the open end of the microstrip line. The measured results successfully validate the design theory.
Understanding and managing learning in social enterprises: The role of implicit organizational boundaries
Authors: Tandon Ankita , Nair Unnikrishnan K. 
Published: June 2020

AbstractSuccessful social enterprises develop innovative context‐specific solutions to social problems in resource‐constrained environments. To achieve this, they harness knowledge resources beyond their organizational boundaries to learn. Yet, there is limited understanding of the role boundaries play in learning. This paper investigates organizational learning in social enterprises from a boundary perspective. It studies the emergence and role of implicit boundaries in learning, critical learning mechanisms, and key agents involved. Following qualitative methodology, data were collected from four Indian social enterprises. Data structures were developed using analytical methods inspired from grounded theory leading to themes and theoretical inferences. Two implicit and dynamic boundaries—competenceandsocial—were identified, which in isolation and through mutual interactions impacted learning. Their movement vis‐à‐vis the structural boundary of the enterprises was traced. Initially mutually exclusive, the two boundaries extended inwards into the enterprises from the external environment, and then moved downwards or upwards over time. Their sustained overlaps and interactions facilitated learning, with middle managers often playing a critical integration role. Specific boundary configurations, learning modes, and critical agents enabling learning are described. This study directs research on learning in social enterprises to specific boundary interactions. It highlights the significance of implicit boundaries, their multiplicity, and dynamism. It directs social enterprises to explicitly recognize the notion of boundaries, and develop competences and processes to manage them for effective learning.
Stereotypes of volunteers and nonprofit organizations' professionalization: A two‐study article
Authors: Peiffer Mathieu , Villotti Patrizia , Vantilborgh Tim , Desmette Donatienne 
Published: June 2020

AbstractCompetence and warmth are two fundamental stereotypical dimensions that frame people's social judgments. Since we currently lack evidence about how the volunteering workforce is socially perceived, this study aims to (a) understand which stereotypes are associated with volunteers, and (b) determine whether these perceptions vary as a result of contextual changes (i.e., professionalization) that have recently characterized nonprofit organizations (NPOs). Two empirical survey‐based studies were conducted in Belgium, one comprising data collected from a general population sample (N = 233), and the other from volunteers (N = 128). Study 1 displayed volunteers being perceived by the general population as warmer rather than competent. Study 2 found that ingroup warmth perceptions in a volunteers' sample decreased as NPOs became progressively more business‐like. Overall, these two studies illustrate that warmth is at the heart of the volunteers' role and show that the increasing professionalization of NPOs affects this perception.
The effectiveness of telegram‐based virtual education versus in‐person education on the quality of life in adolescents with moderate‐to‐severe asthma: A pilot randomized controlled trial
Authors: Faraji Shiva , Valizadeh Sousan , Sharifi Akbar , Shahbazi Shahla , Ghojazadeh Morteza 
Published: June 2020

AbstractAimIn recent years, mobile applications have been developed for health education purposes. The aim of this study was to determine whether Telegram‐based virtual education versus in‐person education can be effective for improving the quality of life in adolescents with moderate‐to‐severe asthma.DesignA single‐blind randomized trial.MethodsParticipants were 64 adolescents aged 12–19 years and were equally assigned randomly to group A (Telegram‐based education) and group B (in‐person education) during 22 June 2017–19 February 2018. The educational contents were similar for both groups. The Mini Pediatric Asthma Quality of Life Questionnaire was used prior to intervention and 5 weeks postintervention for both groups of adolescents.ResultsA statistically significant increase was observed in the quality of life in both groups (p < .001). After controlling the quality‐of‐life scores, there was no statistically significant difference between the groups in terms of the mean score for the quality of life and its domains (p < .05).
Effect of preparation method on the properties of polylactide/cellulose nanocrystal nanocomposites
Authors: Arslan Dogan , Vatansever Emre , Sarul Deniz Sema , Kahraman Yusuf , Gunes Gurbuz , Durmus Ali , Nofar Mohammadreza 
Published: June 2020

AbstractPolylactide (PLA)/cellulose nanocrystal (CNC) nanocomposites with 1, 3, and 5 wt% CNC contents were prepared through (a) solution casting and (b) dilution of solution‐casted PLA/CNC masterbatch though melt mixing in a twin‐screw extruder. The effect of preparation method on the CNC dispersion quality and hence the final properties of the nanocomposites were studied. A better CNC dispersion within PLA was obtained when using solution casting method, whereas the formation of CNC agglomerates was observed in the melt‐processed nanocomposites. The rheological results confirmed that a solid network was formed at the CNC content of around 3 wt% in the solution‐casted samples. The PLA crystallization could also be enhanced differently in the presence of CNC nanoparticles through various preparation routes. Moreover, the CNC incorporation noticeably enhanced the storage modulus of PLA beyond its glass transition temperature. The oxygen permeability of PLA was also remarkably reduced with CNC by employing both methods.
Sulfonated co‐poly(ether imide)s with alkyne groups: Fabrication of crosslinked membranes and studies on PEM properties including MFC performance
Authors: Kumar Anaparthi Ganesh , Saha Sayantani , Tiwari Bikash Ranjan , Ghangrekar Makarand M. , Das Anuja , Mukherjee Rabibrata , Banerjee Susanta 
Published: June 2020

AbstractA new diamine monomer having alkyne side‐groups (DADAF) has been successfully synthesized, and it was used to prepare a series of sulfonated co‐polyimides (DFN‐XX) when reacted with 1,4,5,8‐naphthalenetetracarboxylic dianhydride along with different mole% of 4,4′‐diaminostilbene‐2,2′‐disulfonic acid. The membrane was made from the copolymers by solution casting route, and one of the copolymers DFN‐70 was used to prepare crosslinked membranes by adding a different amount of 1,6‐hexanediazide during solution casting step. The morphological transformation from non‐crosslinked S‐coPI to crosslinked S‐coPI was observed by employing transmission electron microscopy, atomic force microscopy, and small‐angle X‐ray scattering analyses. Compared to the non‐crosslinked DFN‐XX membranes, crosslinked DFN‐70 copolymer membranes showed low water uptake and improved mechanical and peroxide radical stability. Also, crosslinked DFN‐70 copolymer membranes showed significantly higher proton conductivities (0.004‐0.06 S cm−1) compared to those of DFN‐70 (0.003‐0.05 S cm−1) particularly, at 80°C when the relative humidity increased from 40% to 98%. Furthermore, crosslinked DFN‐70 copolymer membranes exhibited significantly enhanced performance in a microbial fuel cell (MFC) as compared to those of non‐crosslinked DFN‐70 membrane.
Living with long‐term consequences: Experience of follow‐up care and support needs among Asian long‐term colorectal cancer survivors
Authors: Yoon Sungwon , Chua Teck Beng , Tan Iain Beehuat , Matchar David , Ong Marcus Eng Hock , Tan Emile 
Published: June 2020

AbstractObjectivesThis study aimed to provide an in‐depth exploration of follow‐up care experiences and supportive care needs in long‐term colorectal cancer (CRC) survivors within multiethnic Asian communities.MethodsSemi‐structured in‐depth interviews were conducted on a purposive sample of 30 long‐term CRC survivors who had completed all treatment without recurrence ranging 2 to 17 years in Singapore. Interviews were audio‐recorded and transcribed verbatim. Thematic analysis was conducted following grounded theory approach.ResultsFour themes represented the experience of the Asian long‐term CRC survivors: (a) living with long‐term consequences, (b) dealing with unceasing adaptation demands, (c) navigating a healthcare journey with limited direction, (d) regaining mastery through adversity. CRC and its treatment had profound physical impacts on some long‐term survivors and these effected their psychological well‐being. A sense of abandonment and vulnerability following the cessation of a 5‐year follow‐up care was repeatedly expressed. Participants defined recovery from CRC as not merely surviving but also having high physical function and full independence. They often sought less conventional remedies and medicine based on cultural beliefs rather than current evidence. Participants noted pervasive social stigma associated with CRC that impeded their inclusion in the workforce.ConclusionsAsian long‐term CRC survivors experienced multiple challenges and needs relating to the care experience, information provision and workforce stigmatization, and several of which were unique to the Asian context. Future work will need to consider the implementation of culturally tailored cancer survivorship care plans that incorporate the specific needs of Asian CRC survivors.
Self‐management in older people living with cancer and multi‐morbidity: A systematic review and synthesis of qualitative studies
Authors: Corbett Teresa , Cummings Amanda , Calman Lynn , Farrington Naomi , Fenerty Vicky , Foster Claire , Richardson Alison , Wiseman Theresa , Bridges Jackie 
Published: June 2020

AbstractObjectiveMany older people with cancer live with multimorbidity. Little is understood about the cumulative impact of old age, cancer and multimorbidity on self‐management. This qualitative systematic review and synthesis aimed to identify what influences self‐management from the perspective of older adults living with cancer and multimorbidity.MethodsSix databases were systematically searched for primary qualitative research reporting older adults' experiences of living with cancer and multimorbidity (eg, Medline, Embase, and CINAHL). A thematic synthesis was guided by Shippee's model of cumulative complexity. Text labelled as results in the included papers was treated as data.ResultsTwenty‐eight studies were included. While the included studies varied in their focus, our analysis highlighted a number of important themes consistent across the studies. Health conditions with the greatest negative impact on independent living assumed the greatest importance, sometimes meaning their cancer was a low priority. Self‐management practices seen as likely to interfere with quality of life were deprioritized unless viewed as necessary to maintain independence. When burden outweighed capacity, people were reluctant to ask for help from others in their social network. The contribution of formal healthcare services to supporting self‐management was relatively peripheral.ConclusionsOld age and multimorbidity together may complicate self‐management after cancer, threatening health and well‐being, creating burden and diminishing capacity. Older adults prioritized self‐management practices they considered most likely to enable them to continue to live independently.The protocol was registered with Prospero (CRD42018107272).
Acute and chronic toxicity of deltamethrin, permethrin, and dihaloacetylated heterocyclic pyrethroids in mice
Authors: Zhu Qiuyan , Yang Yang , Lao Zhiting , Zhong Yingying , Zhang Kun , Zhao Suqing 
Published: June 2020

AbstractBACKGROUNDPyrethroids, a class of insecticides, that act on the nervous system of insects. Frequent consumption of foods with pyrethroid residues increase the risk of developmental and neurological diseases in humans. Assessing the toxicity of novel synthetic pyrethroids to mammals is also critical to the development of agrochemicals.RESULTSUsing mice as models, the acute and chronic toxicity of deltamethrin, permethrin, dihaloacetylated pyrethroids to mammals was researched by gavage administration. Acute toxicity assessment displayed that the median lethal dose (LD50) of deltamethrin, permethrin and dihaloacetylated heterocyclic pyrethroids DCA‐O, DCA‐01, and DCA‐11 tested were greater than 500 mg/kg of weight. Furthermore, chronic toxicity assessment demonstrated that deltamethrin, permethrin caused epidermal damage near the genitals, while dihaloacetylated heterocyclic pyrethroids DCA‐O, DCA‐01, and DCA‐11 showed no relevant symptoms. However, both the acute and chronic toxicity assessment suggested that pyrethroids exposure induced mice loss weight. Additionally, the elevated plus maze (EPM) test showed that pyrethroids caused anxiety‐like behaviors and no motor defects in Kunming mice. Beside, during the sucrose preference test (SPT), 60‐day pyrethroids exposure increased excitatory behaviors in mice. However, the neurochemical studies displayed that pyrethroids exposure increased the total amount of glutamate (Gln), glutamine (Glu) and γ‐aminobutyric acid (GABA) in the mice's blood.CONCLUSIONPyrethroids exposure induced weight loss in mice, although the acute oral toxicity of deltamethrin, permethrin and dihaloacetylated heterocyclic pyrethroids DCA‐O, DCA‐01, and DCA‐11 was low. However, regarding chronic toxicity, deltamethrin, permethrin and dihaloacetylated heterocyclic pyrethroids DCA‐O, DCA‐01, and DCA‐11 induced anxiety‐like behaviors, excitatory behaviors, Gln‐Glu‐GABA circulatory dysfunction in blood. Particularly, deltamethrin, though permethrin also had reproductive toxicity. © 2020 Society of Chemical Industry
After the reflexive turn in migration studies: Towards the doing migration approach
Authors: Amelina Anna 
Published: June 2020

AbstractWhat processes transform (im)mobile individuals into ‘migrants’ and geographic movements across political‐territorial borders into ‘migration’? Addressing this question, the article develops the doing migration approach that combines socio constructivist, praxeological and the sociology of knowledge and performativity perspectives. ‘Doing migration’ starts with the processes of social attribution that separate between ‘migrants’ and ‘nonmigrants’ and that are embedded into institutional, organisational and interactional routines which generate unique social order(s) of migration. Illustrating these conceptual ideas, the article provides insights into the elements of the contemporary European order of ‘migration’. The institutional routines contribute to the emergence of the European migration regime that includes narratives of economisation, securitisation and humanitarisation. The organisational routines of European migration order realise bordering, surveillance and othering contributing to the disciplining effects on those defined as ‘migrants’. Furthermore, the routines of daily face‐to‐face interactions generate various microforms of ‘migration’ by stigmatisation, while also giving the potential to resist the social attribution as ‘migrant’.
On monitoring industrial processes under feedback control
Authors: Capaci Francesca , Vanhatalo Erik , Palazoglu Ahmet , Bergquist Bjarne , Kulahci Murat 
Published: June 2020

AbstractThe concurrent use of statistical process control and engineering process control involves monitoring manipulated and controlled variables. One multivariate control chart may handle the statistical monitoring of all variables, but observing the manipulated and controlled variables in separate control charts may improve understanding of how disturbances and the controller performance affect the process. In this article, we illustrate how step and ramp disturbances manifest themselves in a single‐input–single‐output system by studying their resulting signatures in the controlled and manipulated variables. The system is controlled by variations of the widely used proportional‐integral‐derivative(PID) control scheme. Implications for applying control charts for these scenarios are discussed.
Mycobacterium avium pleuritis with multiple nodules in the pleura
Authors: Ogata Hiroaki , Harada Eiji , Takao Tomoaki , Ijichi Kayo , Hamada Naoki , Matsumoto Koichiro 
Published: June 2020

AbstractAs opposed to tuberculosis, pleurisy hardly develops in patients with nontuberculous mycobacteria (NTM) infection. In spite of increasing prevalence of NTM infection, little is known about thoracoscopic or pathological findings of the NTM‐infected pleura. We now report the first case of NTM pleuritis with multiple granulomatous nodules in the pleura. A 74‐year‐old woman was admitted to our hospital due to massive effusion of the left thoracic cavity. The analysis of pleural fluid showed lymphocytic exudative effusions with increased levels of adenosine deaminase, although culture of the pleural fluid was negative. The patient accordingly underwent thoracoscopy, which revealed multiple pleural nodules. Biopsy of the nodules demonstrated epithelioid cell granulomas without caseous necrosis. In addition, culture of the biopsy specimens confirmed infection by Mycobacterium avium. As culture of pleural fluid often fails to detect NTM pathogens, demonstration of pleural nodules during thoracoscopy can contribute to prompt diagnosis and treatment of NTM pleuritis.
Novel Skutterudite CoP3–Based Asymmetric Supercapacitor with Super High Energy Density
Authors: Jiang Jing , Li Zhipeng , He Xinrui , Hu Yalin , Li Fu , Huang Pei , Wang Chao 
Published: June 2020

AbstractSkutterudite CoP3 holds a unique structural formation that exhibits much better electronic properties for obtaining high energy density supercapacitors. Herein, novel skutterudite Ni–CoP3 nanosheets are constructed by etching and coprecipitating at room temperature and subsequent low‐temperature phosphorization reaction. Benefiting from the enhanced electrical conductivity and more electroactive sites brought about by adjusting the electronic structure with Ni incorporating the Ni–CoP3 electrode with a battery‐type demonstrates an ultrahigh specific capacity of 0.7 mA h cm−2 and exceptional cycling stability. The asymmetric supercapacitor (ASC) device fabricated by employing Ni–CoP3 and activated carbon (AC) as positive and negative electrodes, resepectively, exhibits a remarkable high energy density of 89.6 Wh kg−1 at 796 W kg−1 and excellent stability of 93% after 10 000 cycles, due to the skutterudite structure. The skutterudite Ni–CoP3 shows a great potential to be an excellent next‐generation electrode candidate for supercapacitors and other energy storage devices.