bluuebunny/crossref_metadata_2025_split huggingface dataset:
Lithium in CEMP-no stars: A new constraint on the lithium depletion mechanism in the early universe
Authors: Matsuno Tadafumi , Aoki Wako , Suda Takuma , Li Haining 
Published: January 2017

Abstract
Most relatively warm, unevolved, metal-poor stars (Teff ≳ 5800 K and [Fe/H] ≲ −1.5) exhibit almost constant lithium abundances, irrespective of metallicity or effective temperature, and thus form the so-called Spite plateau. This was originally interpreted as arising from lithium created by the Big Bang nucleosynthesis. Recent observations, however, have revealed that ultra metal-poor stars (UMP stars; [Fe/H] &lt; −4.0) have significantly lower lithium abundances than those of the plateau. Since most of the UMP stars are carbon-enhanced metal-poor stars with no excess of neutron-capture elements (CEMP-no stars), a connection between the carbon enhancement and lithium depletion is suspected. A straightforward approach to this question is to investigate carbon-normal UMP stars. However, only one object is known in this class. As an alternative, we have determined lithium abundances for two CEMP-no main-sequence turn-off stars with metallicities [Fe/H] ∼ −3.0, where there are numerous carbon-normal stars with available lithium abundances that can be considered. Our 1D local thermodynamic equilibrium analysis indicates that the two CEMP-no stars have lithium abundances that are consistent with values near the plateau, which suggests that carbon enhancement and lithium depletion are not directly related. Instead, our results suggest that extremely low iron abundance is a fundamental cause of depleted lithium in UMP stars.
The redshift-selected sample of long gamma-ray burst host galaxies: The overall metallicity distribution at z &lt; 0.4
Authors: Niino Yuu , Aoki Kentaro , Hashimoto Tetsuya , Hattori Takashi , Ishikawa Shogo , Kashikawa Nobunari , Kosugi George , Onoue Masafusa , Toshikawa Jun , Yabe Kiyoto 
Published: January 2017

Abstract
We discuss the host galaxy metallicity distribution of all long gamma-ray bursts (GRBs) whose redshifts are known to be &lt;0.4, including newly obtained spectroscopic datasets of the host galaxies of GRB 060614, 090417B, and 130427A. We compare the metallicity distribution of the low-redshift sample to the model predictions, and constrain the relation between metallicity and GRB occurrence. We take account of spatial variation of metallicities among star-forming regions within a galaxy. We found that the models in which only low-metallicity stars produce GRBs with a sharp cutoff of GRB production efficiency around 12+log(O/H) ∼ 8.3 can reproduce the observed distribution well, while the models with no metallicity dependence are not consistent with the observations. We also discuss possible sampling biases we may suffer by collecting long GRBs whose redshifts are known, presenting the photometric observations of the host galaxy of GRB 111225A at z = 0.297 whose redshift has been undetermined until ∼2.3 yr after the burst.
Black hole spin of Cygnus X-1 determined from the softest state ever observed
Authors: Kawano Takafumi , Done Chris , Yamada Shin’ya , Takahashi Hiromitsu , Axelsson Magnus , Fukazawa Yasushi 
Published: January 2017

Abstract
We show the softest ever spectrum from Cyg X-1, detected in 2013 with Suzaku. This has the weakest high-energy Compton tail ever seen from this object, so should give the cleanest view of the underlying disk spectrum, and hence the best determination of black hole spin from disk continuum fitting. Using the standard model of a disk with simple non-thermal Comptonization to produce the weak high-energy tail gives a high-spin black hole. However, we get a significantly better fit by including an additional, low-temperature thermal Comptonization component, which allows a much lower black hole spin. Corroboration of the existence of an additional Compton component comes from the frequency-dependent hard lags seen in the rapid variability in archival high/soft state data. These cannot be explained if the continuum is a single non-thermal Comptonization component, but are instead consistent with a radially stratified, multi-zone Comptonization spectrum, where the spectrum is softer further from the black hole. A complex multi-zone Comptonization continuum is required to explain both spectra and timing together, and this has an impact on the derived black hole spin.
Technological Innovation, Resource Allocation, and Growth*
Authors: Kogan Leonid , Papanikolaou Dimitris , Seru Amit , Stoffman Noah 
Published: January 2017

Abstract
We propose a new measure of the economic importance of each innovation. Our measure uses newly collected data on patents issued to U.S. firms in the 1926 to 2010 period, combined with the stock market response to news about patents. Our patent-level estimates of private economic value are positively related to the scientific value of these patents, as measured by the number of citations the patent receives in the future. Our new measure is associated with substantial growth, reallocation, and creative destruction, consistent with the predictions of Schumpeterian growth models. Aggregating our measure suggests that technological innovation accounts for significant medium-run fluctuations in aggregate economic growth and TFP. Our measure contains additional information relative to citation-weighted patent counts; the relation between our measure and firm growth is considerably stronger. Importantly, the degree of creative destruction that is associated with our measure is higher than previous estimates, confirming that it is a useful proxy for the private valuation of patents.
More Data or Better Data? A Statistical Decision Problem
Authors: Dominitz Jeff , F. Manski Charles 
Published: January 2017

Abstract
When designing data collection, crucial questions arise regarding how much data to collect and how much effort to expend to enhance the quality of the collected data. To make choice of sample design a coherent subject of study, it is desirable to specify an explicit decision problem. We use the Wald framework of statistical decision theory to study allocation of a budget between two or more sampling processes. These processes all draw random samples from a population of interest and aim to collect data that are informative about the sample realizations of an outcome. They differ in the cost of data collection and the quality of the data obtained. One may incur lower cost per sample member but yield lower data quality than another. Increasing the allocation of budget to a low-cost process yields more data, while increasing the allocation to a high-cost process yields better data. We initially view the concept of “better data” abstractly and then fix attention on two important cases. In both cases, a high-cost sampling process accurately measures the outcome of each sample member. The cases differ in the data yielded by a low-cost process. In one, the low-cost process has non-response and in the other it provides a low-resolution interval measure of each sample member’s outcome. In these settings, we study minimax-regret sample design for prediction of a real-valued outcome under square loss; that is, design which minimizes maximum mean square error. The analysis imposes no assumptions that restrict the unobserved outcomes. Hence, the decision maker must cope with both the statistical imprecision of finite samples and the partial identification of the true state of nature.
Information seeking and simulation: Roles of attention in guiding a goal-directed behavior
Authors: Akaishi Rei , Hoshi Eiji 
Published: January 2017

AbstractWe usually actively seek out the information we need. However, it is still debated whether information seeking in decision situation is a purposeful behavior or a random process. We investigated this issue using the decision task involving multiple goal-directed event sequences, in which a contextual cue specifies an associated target and touch to the target delivers the reward. We found that the gaze followed the sequence of contextual cue to the associated target, which was eventually chosen. This fixation sequence from contextual cue to the associated target could be observed even when there were multiple goals and when the focus was shifted from one goal to another. To causally investigate the effects of sequential simulation, we directly manipulated the processing of the contextual cues and found its influence on the final choice of target. Furthermore, past episodes of the sequences influenced both final choices of targets and initial gaze to contextual cues. We interpret the results as suggesting that the internal process of simulating goal-directed event sequence drives information-seeking behavior such as attention/gaze in decision situations.
An information integration approach for waiting room management in high speed railway stations
Authors: Lei Ding-you , Niu Feng , Zhang Ying-gui 
Published: January 2017

Purpose
This paper aims to propose a systematic approach to facilitate passenger flow in high speed rail (HSR) stations. A case study is conducted to validate the approach.

Design/methodology/approach
This paper argues that HSR station management consists of train management, station capacity management, waiting room management and passenger flow management, and that two-way and dynamic information exchange exists among the components. Accordingly, the proposed approach integrates the components in HSR station management based on information exchange and heuristic algorithms. A HSR station in China with four regular waiting rooms, one mother-and-infant waiting room and one VIP waiting room located on two floors are chosen for a case study. An arrangement plan for waiting zones and waiting rooms is generated by following the proposed approach.

Findings
The result of the case study indicates that the proposed approach is capable of arranging waiting zones and waiting rooms quickly and effectively to maximize utilization of waiting room capacity and to minimize passenger walking distance from waiting rooms to platforms.

Research limitations/implications
The management problem of railway station waiting room also relates to some other factors such as platforms, tracks adjustment and delay of the trains. As an emerging technology, the Internet of Things (IoT) is expected to offer promising solutions to transform the operation and role of many existing industrial systems such as transportation systems including railway systems. The future study of the authors will focus on IoT intelligent railway management system.

Practical implications
The result indicates that the proposed method is an effective solution to the management of railway station waiting room, which can be applied to railway station management system.

Social implications
China Railway System provides service to billions of passengers. This research has significant social-economic impacts.

Originality/value
This paper fulfills an information integrated approach for improving waiting room management in high speed railway stations and a case study testing the approach.
Transmission of information about consumer product quality and safety: a social media perspective
Authors: Wang Xin , Xu Yingcheng , Wang Li , Xu Xiaobo , Chen Yong 
Published: January 2017

PurposeThis study aims to the information about consumer product quality and safety that can easily attract public attention and become the focus of public opinion. In recent years, the fast-growing social media have become an import platform for firms for releasing product quality and safety information and for firms and governments to hear public opinion.Design/methodology/approachTo explore how information about consumer product quality and safety gets disseminated and a public opinion is formed in social media, this paper proposes two information transmission models, one with government intervention and the other without government intervention, based on the theory of complex network. A simulation case study in MATLAB is conducted to verify the proposed models.FindingsInformation transmission models were constructed, one without government intervention and one with government intervention. The influence of information transmission with government intervention was analyzed. MATLAB was used to simulate the Barabasi and Albert (BA)-based model to consider event information level, government information level and possible panic population proportion. The government intervention effect was evaluated.Originality/valueBased on a complex network, the derived transmission rule can provide decision-making support for monitoring and managing Web information of consumer product quality and safety.
Mind Matters: a psychoeducation programme for individuals with intellectual disabilities and co-morbid diagnoses of mental disorder
Authors: Ashworth Sarah , Jansen Krista , Bullock Lydia , Mooney Paul 
Published: January 2017

Purpose
The purpose of this paper is to describe a feasibility study into the development and pilot of a psychoeducational group for people with intellectual disability and co-morbid mental disorder (including mental illness and personality disorder) within forensic settings.

Design/methodology/approach
“Mind Matters”, a psychoeducational programme for people with an intellectual disability and co-morbid mental disorders is a group based programme in a medium secure hospital, adapted and developed to be suitable for people with intellectual disability therapist multidisciplinary approach was key to its development. An open group on a 16-bedded ward for individuals with mild to moderate intellectual disability and co-morbid mental illness was delivered over a six-week period.

Findings
The group was positively received in pilot by participants and members of the clinical teams. Attendance and engagement of participants were key measures of the success of the programme. In addition to the apparent increased social skills and motivation to engage with future psychological intervention.

Practical implications
The authors believe that this approach benefitted both the group members and staff on ward, reinforcing strategies for maintaining positive mental health. It also stimulated engagement, discussion about mental disorders including mental illness, personality disorder and intellectual disabilities.

Originality/value
This paper shows how a psychoeducational approach to mental disorder and mental health in individuals with an intellectual disability is possible, beneficial and well received.
Exploring the design elements of open evaluation
Authors: Haller Jörg B.A. , Velamuri Vivek K. , Schneckenberg Dirk , Möslein Kathrin M. 
Published: January 2017

Purpose
Firms increasingly integrate a wide range of actors in the early ideation and concept creation phases of innovation processes leading to the collection of a large number of ideas. This creates the challenge of filtering the most promising ideas from a large number of submissions. The use of external stakeholders into the evaluation and selection of submissions (i.e. open evaluation (OE)) might be a viable alternative. The purpose of this paper is to provide a state-of-the-art analysis on how such OE systems are designed and structured.

Design/methodology/approach
Since OE is a new phenomenon, an exploratory qualitative research approach is adopted. In all, 122 instances of OE in 90 innovation contest cases are examined for their design elements.

Findings
This research reveals that OE systems are configured in many different ways. In total, 32 design elements and their respective parameters are identified and described along the six socio-technical system components of an OE system. This study allows for a comprehensive understanding of what OE is and what factors need to be taken into consideration when designing an OE system.

Practical implications
Scholars and professionals may draw insights on what design choices to make when implementing OE.

Originality/value
The comprehensive analysis performed in this study contributes to research on open and user innovation by examining the concept of OE. In particular, it extends knowledge on design elements of OE systems.
Chanell Cumber in conversation with Jerome Carson
Authors: Cumber Chanell , Carson Jerome 
Published: January 2017

Purpose
The purpose of this paper is to provide a profile of Chanell Cumber.

Design/methodology/approach
Chanell starts by giving a short account of her life. She is then interviewed by Jerome.

Findings
Chanell witnessed years of domestic abuse from her father towards her mother. This led her to develop mental health problems at a young age. Her account reveals her struggles to recover.

Research limitations/implications
While single case studies are just that, they offer us insights that are missing from many professional narratives. These can often allow us a unique window into peoples’ lives.

Practical implications
Chanell points out the need for mental health services to have a more prolonged engagement with people who use services and outlines why this is important.

Social implications
As a society we do not always reach out to quieter individuals who may go under “the radar”. Sometimes being more forward and offering people a chance to open up, may provide them with the opportunity to reveal the pressures they are under.

Originality/value
Each person’s story is unique and gives us differing understandings of the struggles that people battle with and how they have overcome these.
Recovery and practice-based evidence: reconnecting the diverging discourses in mental health
Authors: Collins Padraig , Crowe Sarah 
Published: January 2017

Purpose
The purpose of this paper is to explore the discourses which exist around the alleviation of mental distress, from the different perspective of mental health professionals and service users. It then looks at the use of “practice-based evidence” as a means of bringing together these two diverging discourses.

Design/methodology/approach
Literature on the discourses which exist around the cause and treatment of mental distress, from the perspective of professionals and service users, is first explored. Differences between these two discourses are identified, as are theoretical and practical limitations of current professional diagnostic and treatment paradigms. Finally the use of practice-based evidence as a means of bridging the gap between these two discourses is outlined.

Findings
This paper highlights marked differences between the discourse which exists for professionals, and that for service users, around alleviating mental distress. The use of practice-based evidence is explored, not only as a means of bringing these two varying discourses together, but also as a tool which could help to improve treatment outcome in a way which is more inclusive of service users and fits with both empiricism and a broader recovery ethos.

Originality/value
This paper applies a “practice-based evidence” approach to bringing together the divergent perspectives regarding mental health of service providers and users. In doing so it provides a practical and pragmatic approach to true collaborative working.
What works for peer support groups: learning from mental health and wellbeing groups in Bath and North East Somerset
Authors: Fieldhouse Jon , Parmenter Vanessa , Lillywhite Ralph , Forsey Philippa 
Published: January 2017

Purpose
The purpose of this paper is to explore what worked well in terms of peer involvement in a diverse network of community groups for people affected by mental health problems in Bath and North East Somerset (BANES), UK.

Design/methodology/approach
A participatory action inquiry approach engaged the network’s key stakeholders (group members, facilitators, and commissioners) in critical reflection on what supported successful groups.

Findings
Successful groups have six characteristics: mutual support, a positive shared identity, opportunities for taking on roles, negotiated ground rules, skilled facilitation, and a conducive physical environment. Additionally, each group achieved a balance between the following areas of tension: needing ground rules but wanting to avoid bureaucracy, needing internal structure whilst also committing to group activities, balancing leadership with accountability, wanting peer leadership whilst acknowledging the burden of this responsibility, and lobbying for change in mental health services whilst acknowledging the need for support from them.

Research limitations/implications
The evaluation shows a group’s success is about adaptability and group facilitation is the art of navigating a course through these competing demands above. These insights have informed plans for a practical guide for developing peer led groups and for training of peer leaders in BANES.

Originality/value
This evaluation focuses on self-efficacy. It draws on group members’ own perceptions of what worked best for them to provide transferable learning about how peer led support groups might develop more generally. It can thus inform the growth of a comparatively new kind of community-based support for people with mental health problems and for their carers.
Further evidence that singing fosters mental health and wellbeing: the West Kent and Medway project
Authors: Clift Stephen , Manship Sharon , Stephens Lizzi 
Published: January 2017

Purpose
Clift and Morrison (2011) report that weekly singing over eight months for people with enduring mental health issues led to clinically important reductions in mental distress. The purpose of this paper is to test the robustness of the earlier findings.

Design/methodology/approach
Four community singing groups for people with mental health issues ran weekly from November 2014 to the end of 2015. Evaluation place over a six-month period using two validated questionnaires: the short Clinical Outcomes in Routine Evaluation (CORE-10) questionnaire, and the Warwick Edinburgh Mental Wellbeing Scale (WEMWBS).

Findings
In all, 26 participants completed baseline and follow-up questionnaires. CORE-10 scores were significantly reduced, and WEMWBS scores significantly increased. Comparisons with the earlier study found a similar pattern of improvements on CORE items that are part of the “problems” sub-scale in the full CORE questionnaire. There was also evidence from both studies of participants showing clinically important improvements in CORE-10 scores.

Research limitations/implications
The main limitations of the study are a small sample size and the lack of a randomised control group.

Originality/value
No attempts have been made previously to directly test the transferability of a singing for health model to a new geographical area and to evaluate outcomes using the same validated measure.