bluuebunny/crossref_metadata_2025_split huggingface dataset:
Taxon disappearance from microbiome analysis indicates need for mock communities as a standard in every sequencing run
Authors: Yeh Yi-Chun , Needham David M. , Sieradzki Ella T. , Fuhrman Jed A. 
Published: October 2017

AbstractMock communities have been used in microbiome method development to help estimate biases introduced in PCR amplification, sequencing, and to optimize pipeline outputs. Nevertheless, the necessity of routine mock community analysis beyond initial method development is rarely, if ever, considered. Here we report that our routine use of mock communities as internal standards allowed us to discover highly aberrant and strong biases in the relative proportions of multiple taxa in a single Illumina HiSeqPE250 run. In this run, an important archaeal taxon virtually disappeared from all samples, and other mock community taxa showed >2-fold high or low abundance, whereas a rerun of those identical amplicons (from the same reaction tubes) on a different date yielded “normal” results. Although obvious from the strange mock community results, due to natural variation of microbiomes at our site, we easily could have missed the problem had we not used the mock communities. The “normal” results were validated over 4 MiSeqPE300 runs and 3 HiSeqPE250 runs, and run-to-run variation was usually low (Bray-Curtis distance was 0.12±0.04). While validating these “normal” results, we also discovered some mock microbial taxa had relatively modest, but consistent, differences between sequencing platforms. We suggest that using mock communities in every sequencing run is essential to distinguish potentially serious aberrations from natural variations. Such mock communities should have more than just a few members and ideally at least partly represent the samples being analyzed, to detect problems that show up only in some taxa, as we observed.ImportanceDespite the routine use of standards and blanks in virtually all chemical or physical assays and most biological studies (a kind of “control”), microbiome analysis has traditionally lacked such standards. Here we show that unexpected problems of unknown origin can occur in such sequencing runs, and yield completely incorrect results that would not necessarily be detected without the use of standards. Assuming that the microbiome sequencing analysis works properly every time risks serious errors that can be avoided by the use of suitable mock communities.
The use of the performance measures in Thai public hospitals
Authors: Buathong Suwimon , Bangchokdee Sirilak 
Published: October 2017

Purpose
The purpose of this paper is to examine the relationships between participation in performance measurement systems (PMS) and the use of performance measures; the use of performance measures and managerial performance; and participation in PMS and managerial performance in public hospitals in Thailand.

Design/methodology/approach
Data were collected using a mailed questionnaire. A total of 304 middle managers in public hospitals in Southern Thailand participated in the study. The data were analyzed using structural equation modeling.

Findings
The results reveal a positive relationship between participation in PMS and the use of performance measures, and a positive relationship between the use of performance measures and managerial performance. The results also indicate a positive relationship between participation in PMS and improved managerial performance.

Practical implications
Results indicate that top managers in hospitals should allow middle managers to have greater participation in their organization’s PMS. By sharing information between top and middle managers, a PMS can be developed that reflects the organization’s goals, as well as being suitable for departmental performance evaluation. This enhances PMS acceptance by middle managers, and reduces task ambiguity, leading to improved managerial performance.

Originality/value
As middle managers participate more in PMS, their acceptance of PMS increases. They then make greater use of both financial and non-financial performance measures to obtain comprehensive feedback about their department’s performance. This enhances their decision outcomes, resulting in improved managerial performance.
Homelessness among clients of Sydney’s supervised injecting facility
Authors: M. Salmon Allison , Belackova Vendula , Schwanz Ricardo Starling , Jauncey Marianne , Hiley Sarah , Demirkol Apo 
Published: October 2017

Purpose
The Uniting Medically Supervised Injecting Centre (MSIC) opened in Sydney, Australia, in May 2001. Homelessness among people who inject drugs (PWID) in Australia has been increasing, and establishing how supervised injecting facilities (SIFs) might best support clients into housing is an important goal. The purpose of this paper is to update knowledge regarding the accommodation status of MSIC clients, thereby supporting a better understanding of the complex needs of these clients.

Design/methodology/approach
Client accommodation status at MSIC registration (first visit) and in a brief survey (conducted in May 2016) were compared; unstable accommodation was defined as rough sleeping, couch surfing, hostel, boarding house or crisis accommodation. The bivariate logistic regression analysis was used to explore the association between socio-demographics and accommodation status at both time points; a paired t-test was used to compare the visit records for those who reported stable and unstable accommodation in May 2016.

Findings
Of 232 clients who were present at MSIC during the week the Brief Survey was conducted, 107 participated. Most were male (79 per cent) with a mean age of 41.4 years. A total of 64 (60 per cent) identified as living in unstable accommodation; having increased from 40 per cent at the time of registration (first visit). There were significant positive associations between unstable accommodation status and unemployment, imprisonment and history of overdose, all measured at registration. In May 2016, unstable accommodation status was significantly associated with age of first injection and with unemployment status (as measured at registration); those living in unstable accommodation in May 2016 had a lower number of visits, a lower number of referrals to health and social services and a lower number of overdoses at MSIC than those living in a stable accommodation.

Originality/value
The rates of unstable accommodation among MSIC clients have been increasing. These findings highlight the importance of SIFs and drug consumption rooms as venue to address the essential needs of PWID, such as housing. The window of opportunity to support PWID who experience housing instability seems to be narrower than for those who live in stable accommodation.
Thailand’s national alcohol survey as a policy monitoring tool
Authors: Saengow Udomsak 
Published: October 2017

Purpose
The purpose of this paper is to assess to what extent the Smoking and Alcohol Drinking Behavior Survey (SADBeS), the national alcohol survey, could be used in monitoring goals and cost-effective measures suggested by the National Alcohol Strategy (NAS) issued by public health authorities in 2010.

Design/methodology/approach
The NAS was reviewed. Strategies, measures, and corresponding indicators were extracted. Questionnaire items used in the 2014 SADBeS were assessed in comparison with those indicators.

Findings
Four primary indicators indicate overall success of the NAS. In all, 6 out of 15 measures were in accordance with best-buy or good-buy policies – cost-effective policies suggested by the World Health Organization. After excluding indicators unlikely to be obtained from population-based surveys, the SADBeS could be used in monitoring 5 out of 14 indicators corresponding to best-buy or good-buy measures. Of 103 questionnaire items, 26.2 percent of items could be used to monitor primary indicators of the NAS; 34.0 percent could be used to estimate indicators corresponding to best-buy or good-buy measures. Overall, only 35.0 percent of questionnaire items provided useful information for monitoring primary indicators and cost-effective measures suggested in the NAS.

Practical implications
The SADBeS questionnaire items should be added or replaced to cover feasibly obtained indicators corresponding to best-buy or good-buy policies in the next wave of the survey.

Originality/value
This is the first study addressing the compatibility between the national strategy and the national alcohol survey. It also includes the overview of Thailand’s alcohol strategy, which is, to the author’s knowledge, never presented in any English articles.
Exploring problem use, discrimination, ethnic identity and social networks
Authors: De Kock Charlotte , Decorte Tom 
Published: October 2017

Purpose
Possessing a strong ethnic identity and ethnic network are described in some epidemiological literature as moderating factors in the relation between perceived discrimination and varying types of substance use in people with a migration background (PMB). The purpose of this paper is to qualitatively explore problem use, discrimination, ethnic identity and social networks in a small purposive sample of users with a Turkish and Eastern European migration background in Ghent, Belgium.

Design/methodology/approach
The authors present data retrieved within the framework of a qualitative community-based participatory research study that primarily aims to understand the nature of substance use in PMB. In the secondary analysis, the authors focus on a sub-study examining substance use by people with a Turkish (n=55) and Eastern European (n=62) migration background and explore how individuals perceive discrimination, ethnic identity and (ethnic) social networks in 117 qualitative interviews.

Findings
Almost all the respondents in this study reported perceived (inter-)ethnic discrimination. The authors establish that problem users in this study have a complex but albeit weak sense of ethnic identity nor do they have a strong ethnic network. This, in combination with perceived discrimination, is a risk factor for continued problem substance use and may hamper recovery related to problem use.

Originality/value
This article intends to lay the groundwork for future research that should focus more on longitudinally studying the intertwined relation between problem use, discrimination, ethnic identity and especially social instead of solely ethnic networks, their complex nature as well as their relation to recovery processes among persons with a migration background.
Culturally sustaining pedagogy in higher education: teaching so that Black Lives Matter
Authors: Cole Courtney E. 
Published: October 2017

Purpose
The purpose of this paper is to show how the principles of Black Lives Matter can be used to enact a culturally sustaining pedagogy (CSP) in higher education settings, particularly in small colleges that serve significant populations of students who are underrepresented in higher education.

Design/methodology/approach
Drawing on examples from college courses in media and society, organizational communication, and interpersonal communication, the case study shows application of the principles of Black Lives Matter in the college classroom at two different institutions in the urban Northeast USA, where the majority of the students are young people of color and/or first-generation college students.

Findings
The paper shows how founding principles of Black Lives Matter, particularly diversity, intersectionality, loving engagement, and empathy, can be used to guide concrete pedagogical practices. It provides examples of how to use Black Lives Matter as a framework to enhance and improve college teaching to make it more diverse and inclusive.

Research limitations/implications
This case study is based on the author’s experiences teaching at two majority-minority colleges in Greater Boston, Massachusetts, USA. This paper is not the result of a systematic research study.

Practical implications
This paper has significant implications for how to enact CSP in higher education settings. This paper is valuable to those looking for specific strategies to include more diverse and inclusive teaching strategies. This research also shows both the utility and impact of Black Lives Matter when applied to higher education.

Social implications
This paper improves public understanding of Black Lives Matter as a social movement.

Originality/value
Since the Black Lives Matter movement is fairly new, there is limited academic research on it. Further, there has not been attention to how Black Lives Matter provides insight into pedagogy, particularly in higher education.
Libraries on the frontlines: neutrality and social justice
Authors: Gibson Amelia N. , Chancellor Renate L. , Cooke Nicole A. , Park Dahlen Sarah , Lee Shari A. , Shorish Yasmeen L. 
Published: October 2017

Purpose
The purpose of this paper is to examine libraries’ responsibility to engage with and support communities of color as they challenge systemic racism, engage in the political process, and exercise their right to free speech. Many libraries have ignored the Black Lives Matter (BLM) movement, citing the need to maintain neutrality. Despite extensive scholarship questioning the validity of this concept, the framing of library neutrality as nonpartisanship continues. This paper examines librarianship’s engagement with, and disengagement from black communities through the lens of the BLM movement. It also explores the implications of education, engagement, and activism for people of color and libraries today.

Design/methodology/approach
The authors have engaged the topic from a critical race perspective as a practice in exercising voice – telling stories, presenting counterstories, and practicing advocacy (Ladson-Billings, 1998).

Findings
The assertion that libraries have been socially and politically neutral organizations is ahistorical. When libraries decide not to address issues relevant to people of color, they are not embodying neutrality; they are actively electing not to support the information and service needs of a service population. In order for libraries to live up to their core values, they must engage actively with communities, especially when those communities are in crisis.

Originality/value
As a service field, librarianship has an ethos, values, and history that parallel those of many other service fields. This paper has implications for developing understanding of questions about equitable service provision.
Equity and justice for all
Authors: Kinloch Valerie , Dixon Kerry 
Published: October 2017

PurposeThis paper aims to examine the cultivation of anti-racist practices with pre- and in-service teachers in post-secondary contexts, and the tensions of engaging in this work for equity and justice in urban teacher education.Design/methodology/approachThe paper relies on critical race theory (CRT) and critical whiteness studies (CWS), as well as auto-ethnographic and storytelling methods to examine how black in-service teachers working with a black teacher educator and white pre-service teachers working with a white teacher educator enacted strategies for cultivating anti-racist practices.FindingsFindings indicate that for black and white educators alike, developing critical consciousness and anti-racist pedagogical practices requires naming racism as the central construct of oppression. Moreover, teachers and teacher educators demonstrated the importance of explicitly naming racism and centralizing (rather than de-centralizing) the political project of anti-racism within the current socio-political climate.Research limitations/implicationsIn addition to racism, educators’ racialized identities must be centralized to support individual anti-racist pedagogical practices. Storying racism provides a context for this individualized work and provides a framework for disrupting master narratives embedded in educational institutions.Originality/valueMuch has been written about the importance of teachers connecting to students’ out-of-school lives to increase academic achievement and advance educational justice. Strategies for forging those connections include using assets-based practices and linking school curricula to students’ community and cultural identities. While these connections are important, this paper focuses on teachers’ explicit anti-racist practices in urban education.
Beyond censorship: politics, teens, and ELA teacher candidates
Authors: Dávila Denise , Barnes Meghan E. 
Published: October 2017

PurposeGrounded in the scholarship addressing teacher self-censorship around controversial topics, this paper aims to investigate a three-part research question: How do secondary English language arts (ELA) teacher–candidates (TCs) in the penultimate semester of their undergraduate teacher education program position political texts/speeches, interpret high school teens’ political standpoints and view the prospects of discussing political texts/speeches with students? The study findings provide insights to the ways some TCs might position themselves as novice ELA teachers relative to political texts/speeches, students, colleagues and families in their future school communities.Design/methodology/approachAudio-recorded data from whole-class and small-group discussions were coded for TCs’ positioning of political texts/speeches, interpretations of teens’ political standpoints and viewpoints on discussing with students President Obama’s speech, “A More Perfect Union” (“A.M.P.U.”) The coded data set was further analyzed to identify themes across the TCs’ perspectives.FindingsThe data set tells the story of a group of TCs whose positionalities, background knowledge and practical experiences in navigating divergent perspectives would influence both their daily selection and censorship of political texts/speeches like “A.M.P.U.” and their subsequent willingness to guide equitable yet critical conversations about controversial issues in the secondary ELA classroom.Originality/valueIn advance of the 2018 midterm elections, this paper considers how the common core state standards’ (CCSS) recommendations to include more nonfiction documents in ELA instruction positions ELA teachers to provide interdisciplinary support in helping students think critically about political issues. It expands on the body of scholarship that, thus far, has been primarily grounded in the research on social studies instruction.
Three dimensional MHD stagnation point flow of Al-Cu alloy suspended water based nanofluid with second order slip and convective heating
Authors: Nithyadevi N. , Gayathri P. , Chamkha A. 
Published: October 2017

Purpose
The paper aims to examine the boundary layers of a three-dimensional stagnation point flow of Al-Cu nanoparticle-suspended water-based nanofluid in an electrically conducting medium. The effect of magnetic field on second-order slip effect and convective heating is also taken into account.

Design/methodology/approach
The thermophysical properties of alloy nanoparticles such as density, specific heat capacity and thermal conductivity are computed using appropriate formula. The non-linear parabolic partial differential equations are transformed to ordinary differential equations and solved by shooting technique.

Findings
The influence of compositional variation of alloy nanoparticle, nanoparticle concentration, magnetic effect, slip parameters and Biot number are presented for various flow characteristics. Interesting results on skin friction and Nusselt number are obtained for different composition of aluminium and copper.

Originality/value
A novel result of the analysis reveals that impact of magnetic field near the boundary is suppressed by the slip effect.
Numerical analysis of turbulent/transitional natural convection in trapezoidal enclosures
Authors: Salari Mahmoud , Rashidi Mohammad Mehdi , Hasani Malekshah Emad , Hasani Malekshah Masoud 
Published: October 2017

Purpose
Because the local Re numbers, ratio of inertia to viscous forces, are not same at different regions of the enclosures, the present study aims to deal with the influences of using the turbulent/transition models on numerical results of the natural convection and flow field within a trapezoidal enclosure.

Design/methodology/approach
The three-dimensional (3D) trapezoidal enclosure with different inclined side walls of 75, 90 and 105 degrees are considered, where the side walls are heated and cooled at Ra = 1.5 × 109 for all cases. The turbulent models of the k-ε-RNG, k- ω-shear-stress transport (SST) and the newly developed transition/turbulent model of Reθ-γ-transition SST are utilized to analyze the fluid flow and heat transfer characteristics within the enclosure and compared their results with validated results.

Findings
Comprehensive comparisons have been carried out for all cases in terms of flow and temperature fields, as well as turbulent quantities, such as turbulent kinetic energy and turbulent viscosity ratio. Furthermore, the velocity and thermal boundary layers have been investigated, and the approximate transition regions for laminar, transitional and turbulent regimes have been determined. Finally, the heat transfer coefficient and skin friction coefficient values have been presented and compared in terms of different turbulent models and configurations. The results show that the transition/turbulence model has better prediction for the flow and heat fields than fully turbulent models, especially for local parameters for all abovementioned governing parameters.

Originality value
The originality of this work is to analyze the 3D turbulent/transitional natural convection with different turbulence/transition models in a trapezoidal enclosure.
How do professional caregivers perceive their health and well-being?
Authors: Perry Meredith Amy , Mulligan Hilda , Smith Catherine 
Published: October 2017

Purpose
The global ageing population places increased demands on the professional caregiver workforce. Literature reveals that although many in this workforce experience stress and fatigue, they also experience high levels of work satisfaction. These findings seem contradictory and therefore warrant further qualitative exploration. The purpose of this paper is to explore how professional caregivers describe their health and well-being and to understand the interplay of work and life on health and well-being.

Design/methodology/approach
Data were collected via semi-structured individual or group interviews with 31 professional caregivers from in-home or residential care situations in three geographic locations across NZ and analysed for themes. The general inductive approach was used for data analysis.

Findings
The authors present two themes: “A holistic interpretation of health” discusses caregivers’ perceptions of the meaning of health and well-being. Three interrelated sub-themes (“Fulfilment of an inherent nature”, “Obligation to look after oneself”, and “Risk management”) reflect the interplay of factors which influence health and well-being as a caregiver and make up the second theme of “Being in tune”. If balance was not achieved, caregivers recognised this as a risk to their health and well-being, especially to their psychological health, and considered leaving the profession.

Originality/value
The authors identified that caregivers considered health and well-being from a holistic perspective. They had insight into factors influencing their health. Despite high levels of stress, there was an overall positive perception of health and well-being that appears due in part to participating in a profession that fulfils an inherent nature. Collaborative problem solving between management and workforce, alongside recognising and affirming the unique skills of this workforce may help to empower caregiver resilience.