bluuebunny/crossref_metadata_2025_split huggingface dataset:
Low insertion loss microplasma‐based limiter integrated into a microstrip bandpass filter
Authors: Pascaud R. , Pizarro F. , Callegari T. , Liard L. , Pigaglio O. , Pascal O. 
Published: June 2015

The use of microplasma discharges as power‐induced limiter elements in microstrip devices is proposed to protect receivers against high‐power microwave threats. A microstrip bandpass filter integrating such a microplasma‐based active microwave power limiter has been designed and measured. Power limitation is observed when the input power exceeds 19 dBm with a leakage power of 14 dBm. Due to the gaseous properties of the active medium, the proposed structure exhibits a very low additional insertion loss of 0.06 dB.
Polarisation‐insensitive and wide‐angle multi‐layer metamaterial absorber with variable bandwidths
Authors: Ghosh S. , Bhattacharyya S. , Chaurasiya D. , Srivastava K.V. 
Published: June 2015

Three different metamaterial absorbers based on ultra‐thin multi‐layer structures, with different bandwidth characteristics, are presented. The proposed structure is composed of three vertically stacked metal‐dielectric layers backed by a metal ground. All the metallic patches are of crossed dipole shape and have different geometrical dimensions, which can be manipulated to design triple‐band, 3 dB and 10 dB absorbers separately. The designed structures are polarisation‐insensitive as well as wide‐angle absorptive for both TE and TM polarisations. The 10 dB broadband structure, exhibiting an absorption bandwidth of 7.5% at 10 GHz, has been fabricated and the absorption performance has been verified with the simulated response. The proposed absorber has the advantages of ultra‐thin thickness (λ0/50 corresponding to the centre frequency), compact size, simpler design, tunable absorption bandwidth and experimental validation, which makes it a promising candidate for many potential applications.
Evaluation of polarisation characteristics of power‐line RCS at 76 GHz for helicopter obstacle detection
Authors: Futatsumori S. , Morioka K. , Kohmura A. , Shioji M. , Yonemoto N. 
Published: June 2015

The polarisation characteristics of a high‐voltage power‐line radar cross‐section (RCS) at 76 GHz are experimentally evaluated to improve the detection conditions of the helicopter obstacle detection radar system. Vertical polarisation transmission and reception (V–V) are normally used to detect power lines. In addition to V–V polarisation, horizontal transmission and reception (H–H) polarisation characteristics are measured for the two types of high‐voltage power lines. For V–V polarisation, the measured RCS characteristics of the power lines agree well with those previously reported at 35 and 94 GHz. However, the measured results of the H–H polarisation are almost the same as, or higher than, those of the V–V polarisation.
Developed turbulence and nonlinear amplification of magnetic fields in laboratory and astrophysical plasmas
Authors: Meinecke Jena , Tzeferacos Petros , Bell Anthony , Bingham Robert , Clarke Robert , Churazov Eugene , Crowston Robert , Doyle Hugo , Drake R. Paul , Heathcote Robert , Koenig Michel , Kuramitsu Yasuhiro , Kuranz Carolyn , Lee Dongwook , MacDonald Michael , Murphy Christopher , Notley Margaret , Park Hye-Sook , Pelka Alexander , Ravasio Alessandra , Reville Brian , Sakawa Youichi , Wan Willow , Woolsey Nigel , Yurchak Roman , Miniati Francesco , Schekochihin Alexander , Lamb Don , Gregori Gianluca 
Published: June 2015

Significance
Magnetic fields exist throughout the universe. Their energy density is comparable to the energy density of the fluid motions of the plasma in which they are embedded, making magnetic fields essential players in the dynamics of the luminous matter in the universe. The origin and the amplification of these magnetic fields to their observed strengths are far from being understood. The standard model for the origin of these galactic and intergalactic magnetic fields is through the amplification of seed fields via turbulent processes to the level consistent with current observations. For this process to be effective, the amplification needs to reach a strongly nonlinear phase. Experimental evidence of the initial nonlinear amplification of magnetic fields is presented in this paper.
Self-reproducing catalyst drives repeated phospholipid synthesis and membrane growth
Authors: Hardy Michael D. , Yang Jun , Selimkhanov Jangir , Cole Christian M. , Tsimring Lev S. , Devaraj Neal K. 
Published: June 2015

Significance
We report on the design and synthesis of an artificial cell membrane that sustains continual growth. Lipid membranes are ubiquitous in all domains of life. Numerous studies have exploited the ability of lipids to self-assemble into bilayer vesicles with properties reminiscent of cellular membranes, but previous work has yet to mimic nature’s ability to support persistent phospholipid membrane formation. In this work, we have developed an artificial cell membrane that continually synthesizes all of the components needed to form additional catalytic membranes. These results demonstrate that complex lipid membranes capable of indefinite self-synthesis can emerge when supplied with simpler chemical building blocks.
Genetic basis underlying connection between hyperglycemia and dyslipidemia inApoe-deficient mice
Authors: Wang Qian , Grainger Andrew T. , Manichaikul Ani , Farber Emily , Onengut-Gumuscu Suna , Shi Weibin 
Published: June 2015

AbstractIndividuals with dyslipidemia often develop type 2 diabetes, and diabetic patients often have dyslipidemia. It remains to be determined whether there are genetic connections between the 2 disorders. A female F2cohort, generated from BALB/cJ (BALB) and SM/J (SM)Apoe-deficient (Apoe−/−) strains, was fed a Western diet for 12 weeks. Fasting plasma glucose and lipid levels were measured before and after Western diet feeding. 144 genetic markers across the entire genome were used for analysis. One significant QTL on chromosome 9, namedBglu17[26.4 cM, logarithm of odds ratio (LOD): 5.4], and 3 suggestive QTLs were identified for fasting glucose levels. The suggestive QTL near the proximal end of chromosome 9 (2.4 cM, LOD: 3.12) was detected when mice were fed chow or Western diet and namedBglu16.Bglu17coincided with a significant QTL for HDL and a suggestive QTL for non-HDL cholesterol levels. Plasma glucose levels were inversely correlated with HDL but positively correlated with non-HDL cholesterol levels in F2mice fed either diet. A significant correlation between fasting glucose and triglyceride levels was observed on the Western but not chow diet. Haplotype analysis revealed that “lipid genes”Sik3andApoc3were probable candidates forBglu17.We have identified multiple QTLs for fasting glucose and lipid levels. The colocalization of QTLs for both phenotypes and the sharing of potential causal genes suggest that dyslipidemia and type 2 diabetes are genetically connected.Article SummaryPatients with dyslipidemia often develop type 2 diabetes, and diabetic patients often have dyslipidemia. It remains unknown whether there are genetic connections between the 2 disorders. Using a female F2cohort derived from BALB/cJ and SM/JApoe-deficient mice, we identified one significant QTL on chromosome 9, namedBglu17, and 3 suggestive QTLs were identified for fasting glucose levels.Bglu17coincided with a significant QTL for HDL and a suggestive QTL for non-HDL levels. Plasma glucose levels were significantly correlated with HDL and non-HDL levels in F2mice. Haplotype analysis revealedSik3andApoc3were probable candidates for both QTLs.
IAPT practitioners’ experiences of providing therapy to people with intellectual disabilities
Authors: Shankland Jennifer , Dagnan Dave 
Published: June 2015

Purpose
– The purpose of this paper is to describe the views and experiences of Improving Access to Psychological Therapies (IAPT) practitioners in providing therapy to patients who have an intellectual disability in order to support IAPT services in increasing their capability in this area.

Design/methodology/approach
– An online survey was conducted of IAPT practitioners in four IAPT services in the north of England. The survey collected respondents demographic information and their experience, confidence and attitudes to working with people with intellectual disabilities. Qualitative responses regarding respondents attitudes, views of barriers, problems, successes and possible solutions to the delivery of therapy to people with intellectual disabilities within IAPT services were collected. The survey results were interpreted by thematic and statistical analysis.

Findings
– The majority of respondents report having worked with people with intellectual disabilities and identify the need to adapt therapy, but also believe that such therapy should be offered within mainstream services. Thematic analysis identifies the needs for support in training, therapy adaptation and adjustment to pathways. However, the majority of respondents could identify positive outcomes and experiences.

Research limitations/implications
– This data supports the further development of pathways and offers some broad frameworks for the focus of training and development work for people with intellectual disabilities within IAPT.

Social implications
– This project has identified a positive attitude and willingness to consider adaptation of therapy for people with intellectual disabilities in practitioners working within IAPT services.

Originality/value
– Until now the views and experiences of IAPT practitioners in working with this patient group were relatively unknown.
Personality disorder and intellectual disability – concept and prevalence
Authors: Andersen Hilde Katrine 
Published: June 2015

Purpose
– The range of prevalence of personality disorder (PD) found in people with intellectual disability (ID) has been reported as vast, and has included data from dissimilar settings. The purpose of this paper is to review the reported prevalence of PD in the general population of people with ID, and to consider how different and changing ideas about PD have affected these rates.

Design/methodology/approach
– Cross-sectional studies of the prevalence of PD in people with ID were identified. The quality of the studies was considered, along with how cases of PD were identified.

Findings
– Six studies were included. The reported prevalence of PD in people known to have ID ranged from 0.7 to 35 per cent. Possible reasons for this wide range included different views of PD and methods of assessment.

Research limitations/implications
– The wide range of findings suggests that methodological differences are significant. Consideration to how clinicians should respond to the overlap of impairment between ID and PD may improve the conceptual clarity of PD, informing future epidemiological research.

Originality/value
– This review was limited to studies of samples likely to be representative of the general ID population. The range of prevalence estimates was narrower than previously reported, and more likely to reflect the true prevalence rate of PD amongst people who have ID. Consideration was also given to how different ideas of PD led to different methods and may have contributed to variance in the results.
Down syndrome: systematic review of the prevalence and nature of presentation of unipolar depression
Authors: Walton Catherine , Kerr Mike 
Published: June 2015

Purpose– The purpose of this paper is to assess the prevalence and nature of presentation of unipolar depression in individuals with Down syndrome (DS).Design/methodology/approach– The PRISMA (2009) checklist for systematic review was followed where possible.Findings– Eight studies were included in the qualitative synthesis from a total of 634 records identified. The quality of the studies was then assessed: the studies all scored either 5 or 6 out of 6. The incidence of depression ranged between studies from 5 to 13 per cent. It was found that depression is more common in DS than the general intellectual disability population; this on a background of mental ill health of all causes being less common in DS. It was suggested that, excluding organic disorders, depression is the most common psychiatric problem in DS. In terms of the nature of depression, the evidence was less clear. Various “vegetative” and biological symptoms were observed, with no fixed pattern. There was evidence for withdrawal symptoms and psychosis.Research limitations/implications– The small number of studies included in this review, and their heterogeneity, highlights the need for further original research in this field.Practical implications– An increased awareness of the frequency of depression in individuals with DS will aid in a timely diagnosis, therefore reduce psychiatric morbidity. Clinicians should be aware of the varied presentation, with no clear clinical picture, in order to maintain a high index of suspicion in an individual presenting with “atypical” symptoms.Originality/value– This review has provided preliminary evidence that depression may be the most commonly experienced psychiatric disorder in DS.
Collaborative learning model of infrastructure construction: a capability perspective
Authors: Manley Karen , Chen Le 
Published: June 2015

Purpose
– The purpose of this paper is to propose a new model to show how continuous joint learning of participant organisations improves project performance. Performance heterogeneity between collaborative infrastructure projects is typically examined by considering procurement systems and their governance mechanisms at static points in time. The literature neglects to consider the impact of dynamic learning capability, which is thought to reconfigure governance mechanisms over time in response to evolving market conditions.

Design/methodology/approach
– There are two stages of conceptual development. In the first stage, the management literature is analysed to explain the standard model of dynamic learning capability that emphasises three learning phases for organisations. This standard model is extended to derive a novel circular model of dynamic learning capability that shows a new feedback loop between performance and learning. In the second stage, the construction management literature is consulted, adding project lifecycle, stakeholder diversity and three organisational levels to the analysis to arrive at the collaborative model of dynamic learning capability.

Findings
– The collaborative model should enable construction organisations to successfully adapt and perform under changing market conditions. The complexity of learning cycles result in capabilities that are imperfectly imitable between organisations, explaining performance heterogeneity on projects.

Originality/value
– The collaborative model provides a theoretically substantiated description of project performance, driven by the evolution of procurement systems and governance mechanisms. The model’s empirical value will be tested in future research.
Succumbing, surviving, succeeding? Women managers in academia
Authors: Thompson Barbara Marcia 
Published: June 2015

Purpose– The purpose of this paper is to address an under-explored and under-theorised aspect of gender work in UK academia in that it looks at the professional lives of middle and senior women managers and leaders who are responsible for initial teacher training in their institutions. As Maguire (2002) and Murray (2002, 2006) point out, within academia, teacher trainers occupy a particularly under-researched space despite some recent interest (Korthagen and Vasalos, 2005; Thompson, 2007).Design/methodology/approach– This research draws on a larger study which explored how 22 middle and senior managers and leaders in ten institutions in England try to come to terms with carrying out their roles in the education marketplace. In-depth semi-structured interviews were carried out with these women and data were also collected from field notes from participant observation undertaken at three of the institutions.Findings– Whereas some women are moving into positions of authority in the education marketplace, some existing women managers are being marginalised within new internally differentiated layers of managerial structures. Simultaneously, many women who manage teacher training are engaged in a struggle for survival individually and professionally. Those who succeed have managed to re-invent themselves to endorse neo-liberal discourses.Originality/value– Original empirical research which sheds new light on previous discourses related to women managers in neo-liberal academia.
Managing conflict at work: comparison between younger and older managerial employees
Authors: Yeung Dannii Y. , Fung Helene H. , Chan Darius 
Published: June 2015

Purpose– This study aimed to examine younger and older employees’ use of five conflict strategies to handle an actual conflict incident with other employees. With reference to the socioemotional selectivity theory, this study tests whether older employees, as compared with younger employees, would use more avoiding to handle conflicts with supervisors but less dominating to handle conflicts with subordinates. Moreover, this study investigates whether the interaction effect between role of the conflict partner and age would be explained by goal interdependence. Furthermore, it also tests whether the negative effect of avoiding on interpersonal relations and job satisfaction would be moderated by age.Design/methodology/approach– The three hypotheses were tested in a sample of 280 Chinese managerial and executive employees aged between 22 and 66 years. Participants were asked to recall their behavioral responses to an actual conflict incident with other employees.Findings– Results showed that relative to younger employees, older employees utilized more avoiding to deal with conflicts with supervisors and less dominating with subordinates. Such age differences in avoiding and dominating strategies were found to be explained by cooperative and independent goals held by the participants in the conflict incident. In addition, the negative effect of avoiding on interpersonal relations was only shown among younger employees but not among older employees.Originality/value– This finding suggests that the use of passive strategies is not always harmful to working adults, largely depending on the age of the users.
Microcredit and political empowerment in Azerbaijan and Kazakhstan
Authors: Bayulgen Oksan 
Published: June 2015

Purpose– The purpose of this paper is to analyze the political effects of microcredit. The author provides the theoretical connections between microfinance and political empowerment and tests them in the context of Central Asia and the Caucasus, a region that is significantly lagging in political development and yet has a growing microfinance potential.Design/methodology/approach– The author conducted a total of 100 in-depth interviews with microcredit clients in Kazakhstan and Azerbaijan in June 2010 and January 2011, respectively. The author chose my client samples randomly from two of the largest non-governmental microfinance institutions in these countries.Findings– The findings of the survey reveal that microloans have only led to modest improvements in the socioeconomic status of the clients and had almost no effect on their political empowerment. Disaggregating the data further in terms of gender, type of loan and location of credit does not change the overall trends but reveals that to the extent that any political empowerment took place, group clients (mostly women) in urban settings were more aware and involved in political issues than individual clients in the villages.Research limitations/implications– Even with a carefully thought-out design, it is not clear how much the responses reflect the true and complicated impact of microfinance on the clients’ lives, a challenge that may be overcome in future research with focus group analysis or an ethnographic analysis of microcredit clients over a long period of time.Practical implications– Notwithstanding these shortcomings, these observations can help inform microfinance institutions, donor organizations and governments about the true potential of microfinance. A realization of the limits of this unique development tool may prove useful in reorienting the goals of foreign aid and designing a more effective approach to development.Originality/value– Despite the extensive literature on the economic and social effects of microcredit, very little attention has been given to how economic empowerment generated by microcredit can translate into political empowerment at the individual level. This paper lays out the theoretical reasons for why such a relationship might exist and tests these hypotheses systematically in two countries, taking into account gender, type of loan instrument and location of the loan.
How teachers’ practice knowledge is used and challenged in a Learning Study using Variation Theory as a tool
Authors: Thorsten Anja 
Published: June 2015

Purpose
– The purpose of this paper is to discuss how teachers’ practice knowledge is used as a tool in a Learning Study and how teachers’ practice knowledge is challenged by using Variation Theory as a tool in the process?

Design/methodology/approach
– The analysis is based on data from the research process in a Learning Study. The data consists of meeting notes of ten research meetings, field notes of the research meetings and from the enactment of the lessons, video recordings of the lessons and reflective notes after and between the meetings. The analysis is qualitative and the findings are described in themes.

Findings
– Teachers’ practice knowledge was used and challenged in different ways in the process. This is described in five themes. Teachers’ practice knowledge was visible in the process since it enabled relevant questions to be addressed and subtle signals from students to be taken into account. It also ensured that the activities used were suitable for the students. The theory provided a focus on the object of learning and a language to talk about teaching and learning. It also challenged teachers’ assumptions about teaching and learning and allowed them to be discussed.

Originality/value
– The paper addresses both teachers’ practice knowledge and Variation Theory in relation to a Learning Study. It focusses on how practice knowledge of teachers can be used and challenged in the same process. The perspective is from the inside, from a teacher researcher’s point of view.