bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modeling the demography of species providing extended parental care: A capture-recapture multievent model with a case study on Polar Bears (Ursus maritimus)
Authors: Cubaynes Sarah , Aars Jon , Yoccoz Nigel G. , Pradel Roger , Wiig Øystein , Ims Rolf A , Gimenez Olivier 
Published: April 2019

AbstractIn species providing extended parental care, one or both parents care for altricial young over a period including more than one breeding season. We expect large parental investment and long-term dependency within family units to cause high variability in life trajectories among individuals with complex consequences at the population level. So far, models for estimating demographic parameters in free-ranging animal populations mostly ignore extended parental care, thereby limiting our understanding of its consequences on parents and offspring life histories.We designed a capture-recapture multi-event model for studying the demography of species providing extended parental care. It handles statistical multiple-year dependency among individual demographic parameters grouped within family units, variable litter size, and uncertainty on the timing at offspring independence. It allows to evaluate trade-offs among demographic parameters, the influence of past reproductive history on the caring parent survival status, breeding probability and litter size probability, while accounting for imperfect detection of family units. We assess the model performances using simulated data, and illustrate its use with a long-term dataset collected on the Svalbard polar bears (Ursus maritimus).Our model performed well in terms of bias and mean square error and in estimating demographic parameters in all simulated scenarios, both when offspring departure probability from the family unit occurred at a constant rate or varied during the field season depending on the date of capture. For the polar bear case study, we provide estimates of adult and dependent offspring survival rates, breeding probability and litter size probability. Results showed that the outcome of the previous reproduction influenced breeding probability.Overall, our results show the importance of accounting for i) the multiple-year statistical dependency within family units, ii) uncertainty on the timing at offspring independence, and iii) past reproductive history of the caring parent. If ignored, estimates obtained for breeding probability, litter size, and survival can be biased. This is of interest in terms of conservation because species providing extended parental care are often long-living mammals vulnerable or threatened with extinction.
Dynamics of inhibitory control during bilingual speech production: An electrophysiological study
Authors: Zheng Xiaochen , Roelofs Ardi , Erkan Hasan , Lemhöfer Kristin 
Published: April 2019

AbstractBilingual speakers have to control their languages to avoid interference, which may be achieved by enhancing the target language and/or inhibiting the nontarget language. Previous research has provided evidence that bilinguals may use inhibition (e.g., Jackson, Swainson, Cunnington, & Jackson, 2001), which is reflected in the N2 component of the event-related potential (ERP). In the current study, we investigated the dynamics of inhibitory control by measuring the N2 during language switching and repetition in picture naming. We recorded the EEG of 30 unbalanced Dutch-English bilinguals in a cued language-switching task. Participants had to name pictures in Dutch or English depending on the cue. A run of same-language trials could be short (two or three trials) or long (five or six trials). We assessed whether RTs and N2 changed over the course of same-language runs, and at a switch between languages. Results showed that speakers named pictures more quickly late as compared to early in a run of same-language trials. Moreover, they made a language switch more quickly after a long run than after a short run. In ERPs, we observed a widely distributed switch effect in the N2, which was larger after a short run than after a long run. The N2 was not modulated during a same-language run, challenging Kleinman and Gollan (2018), who maintained that inhibition accumulates over time. Our results suggests that speakers adjust the level of inhibitory control at a language switch, but not when repeatedly naming in the same language.
Prevalence and determinants of neonatal danger signs in northwest Ethiopia: a multilevel analysis
Authors: Nigatu Tariku , Gebeyehu Abebaw , Worku Alemayehu , Andargie Gashaw , Tigabu Zemene 
Published: April 2019

AbstractBackgroundThere is association between neonatal danger signs and neonatal deaths. Hence, understanding the factors associated with the occurrence of neonatal danger signs help reduce the stagnating neonatal mortality in countries like Ethiopia.MethodA cross sectional community and facility linked study was conducted in 39 kebeles in Amhara region, North Gondar Zone of Ethiopia from March 3-18, 2016. A representative sample of 1,150 mother-newborn pairs were included in the study. Percentage was used to calculate the prevalence. Multilevel analysis was used to identify individual and kebele level characteristics associated with the occurrence of neonatal danger signs.ResultThe result showed that around a quarter, 286 (24.9%), of the newborns experienced one or more danger signs during the neonatal period. Significant differences were found between groups/kebeles in the occurrence of danger signs. At individual level, having low birth weight (AOR= 0.65; 95% CI: 0.48-0.88) and maternal danger signs during pregnancy and delivery (AOR= 1.93; 95% CI: 1.41-2.65) were found to be significantly associated with the occurrence of neonatal danger signs. At group/kebele level, antenatal care coverage (AOR= 0.35; 95% CI: 0.13-0.93) and year of health extension workers experience (AOR= 0.91; 95 % CI: 0.84-0.99) were significantly associated with the occurrence of neonatal danger signs.ConclusionThe prevalence of neonatal danger signs is high. There areindividual and kebele level characteristics associated with occurrence of danger signs in newborns. Expanding maternal health services and strengthening the health extension program is critical.
Understanding the molecular mechanism of umami recognition by T1R1-T1R3 using molecular dynamics simulations
Authors: Liu Hai , Da Lin-Tai , Liu Yuan 
Published: April 2019

AbstractTaste receptor T1R1-T1R3 can be activated by binding to several natural ligands, e.g., L-glutamate and 5’-ribonucleotides etc., thereby stimulating the umami taste. The molecular mechanism of umami recognition at an atomic level, however, remains elusive. Here, using homology modeling, molecular docking and molecular dynamics (MD) simulations, we investigate the effects of five natural umami ligands on the structural dynamics of T1R1-T1R3. Our work identifies the key residues that are directly involved in recognizing the binding ligands. In addition, two adjacent binding sites in T1R1 are determined for substrate binding, and depending on the molecular size and chemical properties of the incoming ligand, one or both these binding sites can be occupied. More interestingly, the binding of varied ligands can lead to either closing or opening of T1R1, based on which, we further classify the five ligands into two groups. This different binding effects are likely associated with the distinct umami signals stimulated by various ligands. This work warrants new experimental assays to further validate the theoretical model and provides guidance to design more effective umami ligands.Author summaryUmami, as the fifth basic taste, is induced by umami substances from the natural food, such as L-glutamate, 5’-ribonucleotides, and peptides etc. These umami substances are widely added to foods as flavor enhancers to promote food quality. However, although extensive experimental and theoretical studies have been devoted to revealing the recognition mechanisms of the taste receptor T1R1-T1R3 to the umami ligands, the detailed molecular mechanism is still unknown, largely due to the lack of the receptor structure. Here, using a new template structure different from the former theoretical studies, we constructed a more accurate homology model of T1R1-T1R3. Based on this receptor model, combined with molecular docking and MD simulations, we investigate how different ligands with varied molecular size and chemical groups might affect the dynamics of T1R1. Our work provides the structural basis for relating the dynamics of umami receptor induced by varied ligands to the resulting umami signal.
Dynamic stability analysis of a tracked mobile robot based on human–robot interaction
Authors: Zong Chengguo , Ji Zhijian , Yu Haisheng 
Published: April 2019

Purpose
This paper aims to provide a theoretical principle for the stability control of robot climbing stairs, autonomously based on human–robot interaction. Through this research, tracked mobile robots with human-robot interaction will be extensively used in rescue in disaster, exploration on planetary, fighting in battle, and searching for survivors in collapsed buildings.

Design/methodology/approach
This paper introduces the tracked mobile robot, based on human–robot interaction, and its six moving postures. The dynamic process of climbing stairs is analyzed, and the dynamic model of the robot is proposed. The dynamic stability criterion is derived when the tracked mobile robot contacts the stairs steps in one, two and more points. A further conduction of simulation on the relationship of the traction force and bearing force vs the velocity and acceleration in the three cases was carried out.

Findings
This paper explains that the tracked mobile robot, based on human–robot interaction, can stably climb stairs so long as the velocity and acceleration satisfy the dynamic stability criterion as noted above. In addition, the experiment tests the correctness of dynamic stability analysis when the tracked mobile robot contacts the stair steps in one, two or more points.

Originality/value
This paper provides the mechanical structure and working principle of the tracked mobile robot based on human–robot interaction and proposes an identification method of dynamic stability criterion when the robot contacts the stairs steps in one, two and more points.
Dynamic framework transfer model for public–private partnerships
Authors: Bao Fengyu , Chen Chuan , Chan Albert P.C. , Martek Igor , Shrestha Asheem 
Published: April 2019

Purpose
Public–private partnerships (PPPs) have emerged in developing countries, such as China, as a ubiquitous means by which government procures needed infrastructure. In this regard, they have been much studied. However, due to their long concession period, running into decades, few have run their full course into the transfer phase (TP) in which the PPP concession reverts from the private entity back to the public. In China, this is about to change as many PPPs approach their TP. Hence, the purpose of this paper is to comprehensively investigate the TP of PPPs in China.

Design/methodology/approach
A three-part methodology was undertaken to achieve the research purpose. Extensive literature review was first conducted to analyze the status quo of the transfer management regime in China, followed by the identification of critical challenges and the exploration of solutions via studying the TP of the Chengdu No. 6 Water Plant B Project – the first PPP in China’s water sector to reach the TP. Research procedures and outcomes were hierarchically visualized by using Integration DEFinition language 0 (IDEF0) method.

Findings
The current transfer management regime of PPPs in China’s water sector is deficient in many aspects. Based on the insight into the practice, a generic transfer process model with hierarchical structure process and sub-processes serving as a dynamic framework transfer model with self-evolving nature is developed to facilitate the successful transfer of the PPP utility.

Originality/value
To the authors’ best knowledge, this is the first attempt to systematically probe the TP of PPPs. Hopefully, the findings of this paper are to instruct government and PPP practitioners alike on mechanisms for smoothing the TP of further PPP projects ending their concession period.
Description–experience gap under imperfect information
Authors: Du Jing , Wang Qi , Shi Qian 
Published: April 2019

PurposeCapital project delivery, such as the delivery of transportation networks and industrial facilities, often suffers losses due to overly aggressive planning. Planners often are overly optimistic about the chance of success while underestimating risks. The purpose of this paper is to examine the hypothesis that these biases are from the difficulties most decision makers face when interpreting probabilistic information.Design/methodology/approachThree behavioral experiments were conducted to test the theoretical fitness of the paradigms proposed by the description–experience gap literature, namely, the sampling errors effect, the recency effect and statistical information format. College students were recruited to participate in a series of estimating tasks. And their estimating results were compared given different levels of information completeness.FindingsIt was found that the existing paradigms could predict risk decision making in the risk-averse estimating scenarios where test subjects were required to give a relatively conservative estimate, but they seemed to be less effective in predicting decisions in the risk-seeking estimating scenario, where test subjects were asked to give a relatively aggressive estimate.Originality/valueBased on these findings, an integrative model is proposed to explain the observations pertaining to aggressive planning in capital projects. Two dimensions are deemed to be relevant: including risk-taking intentions, and an information uncertainty continuum that ranges from an implicit experience-based information representation to an explicit description-based information representation.
Ascertaining the impact of contractors pre-qualification criteria on project success criteria
Authors: Acheamfour Victor Karikari , Kissi Ernest , Adjei-Kumi Theophilus 
Published: April 2019

Purpose
The selection of a suitable contractor for a project has a significant impact on project success. In order to avoid the selection of an incapable contractor, the capabilities of contractors must be assessed prior to tendering through pre-qualification. However, the pre-qualification process is characterized by partiality and ambiguity. In view of this, numerous models have been developed to solve the pre-qualification problems. Prior to the development of such models, it is very important to assess how the pre-qualification criteria impact project success criteria so as to aid in the selection of pre-qualification criteria while considering the project and client’s objectives. Therefore, the purpose of this paper is to ascertain the relationship between contractors’ pre-qualification criteria and project success criteria.

Design/methodology/approach
The study utilized explanatory research design in testing 35 hypotheses. The views of 121 practising quantity surveyors were solicited using a structured questionnaire and analyzed using the partial least square structural equation modeling to validate the hypothesis.

Findings
In all, 13 of the 35 hypotheses were not supported. The findings indicated a clear relationship between contractors’ pre-qualification and project success.

Practical implications
Therefore, it is evident that the practice of lowest evaluate bidder is not adequate for providing a satisfactory project outcome. It is, therefore, suggested that more emphasis should be placed on contractor’s technical abilities, health and safety and management capabilities as they have proven to have a significant correlation with the project success.

Originality/value
This study provides insights to the how various pre-qualification criteria can impact the project success criteria and further contributes to the symbiotic that exist in the literature on pre-qualification and project success.
Exploring sustainable post-end-of-life of building operations
Authors: Jayasinghe Ruchini Senarath , Rameezdeen Raufdeen , Chileshe Nicholas 
Published: April 2019

Purpose
The purpose of this paper is to explore the synergies between post-end-of-life of building (PEoLB) concepts and operations to achieve sustainability.

Design/methodology/approach
A systematic literature review (SLR) was conducted using 65 articles published between 2006 and 2017, and it has been subjected to descriptive and thematic analysis.

Findings
The descriptive analysis revealed that the majority of the articles were about (60 per cent) PEoLB operations, followed by (23 per cent) PEoLB concepts. Only 17 per cent of the articles have dealt with PEoLB-related strategic approaches. The thematic analysis elaborated on the literature development; interrelationships between PEoLB concepts and operations; impediments of introducing sustainability on these operations, remedial measures and information-based strategic approaches to achieve sustainability. Based on the findings, a conceptual framework for sustainable PEoLB operations is proposed. Furthermore, four areas of potential future research are discussed.

Research limitations/implications
This study presents a future research agenda including best practices to plan PEoLB operations and the development of optimisation models, risk management and information-based strategic approaches.

Practical implications
The proposed conceptual research framework triggers and nurtures potential pathways to introduce sustainable PEoLB operations under sound information flow. This could create a basis for future empirical studies in filling the identified gaps in literature. The framework could also assist practitioners in mitigating risks associated with transportation, storing and contamination of salvaged materials through enhanced information flow. In addition, the framework provides some managerial guidance to organisations seeking ways of establishing sustainability during reverse logistics (RL) operations.

Originality/value
This paper presents an SLR of an emerging area of research that encapsulates closed-loop supply chain through sustainable RL operations. The study highlights the interrelationships between PEoLB concepts and operations. It develops a robust approach to effectively manage the PEoLB operations underpinned by a sound information flow to facilitate sustainability.
Hybrid fuzzy-system dynamics approach for quantification of the impacts of construction claims
Authors: Nasirzadeh Farnad , Carmichael David G. , Jarban Mohammad Jafar , Rostamnezhad Mozhdeh 
Published: April 2019

Purpose
The purpose of this paper is to present a novel hybrid fuzzy-system dynamics (SD) approach for the quantification of the impacts of construction claims.

Design/methodology/approach
The most significant claims affecting a project are identified. The various factors affecting the impacts of claims are identified. Then, the qualitative model of construction claims is constructed considering the complex inter-related structure of the influencing factors. The mathematical relationships among the variables are determined and the quantitative model of claims is built. Finally, fuzzy logic is integrated into the proposed model to take into account the existing uncertainties.

Findings
To show the capabilities of the proposed simulation model, it is implemented on a real project and the impacts of the identified claims on the project cost are quantified. It is shown that the external interactions among different claims can intensify their overall impact.

Research limitations/implications
Identification of interactions among various influencing factors is not an easy job when there are a large number of claims in a project. Well-qualified experts and the existence of historical data may limit the application of the proposed method in projects with limited data and/or qualified experts.

Practical implications
The proposed hybrid fuzzy-SD approach provides a practical and flexible tool that can be used in various construction projects to assess the cost impacts of construction claims taking into account their complex interactions. Using the proposed method, the accuracy of achieved results is increased compared to conventional methods that are used for the quantification of claims since the complex inter-related structure of influencing factors and the claims interactions are taken into account. One of the capabilities of the proposed hybrid fuzzy-SD method is its flexibility. Depending on the type of contract and the parties involved in the project, the proposed hybrid fuzzy-SD method can be used during different stages of the project life cycle to model and quantify claims.

Originality/value
The proposed approach may present a flexible and robust method for quantification of construction claims. The novelty aspects of this paper are as follows: the extensively complex structure of claims arising from both internal and external interactions is accounted for using SD. The existing uncertainties affecting the impacts of a claim are taken into account.
Designing with pixels: parametric thinking for patterning dynamic building facades
Authors: Mallasi Zaki 
Published: April 2019

Purpose
Advances in digital design tools enable exploration and generation of dynamic building facades. However, some processes are formally prescribed and manually driven to only visualize the design concepts. The purpose of this paper is to present a proactive framework for integrating parametric design thinking, paying particular attention to building facade patterning.

Design/methodology/approach
This work developed the PatternGen© add-on in Autodesk® Revit which utilizes an analytical image data (AID) overlay approach as a data source to dynamically pattern the building facade. The add-on was used to manipulate the placement rules of curtain panels on facade surface geometry. As means of validating this research model, a real-life design project has been chosen to illustrate the practical application of this approach. Feedback and observations from a short end-user questionnaire assessed qualitatively the facade patterning and panelization approach.

Findings
The proposed merge (or overlay) of AID images can be used as a parametric thinking method rather than just theory to generate and articulate dynamic facade design. The facade panelization responds to an AID that resembles design-performance data (e.g. solar exposure, interior privacy importance and aesthetics).

Originality/value
This work identifies a form of parametric thinking defined as the expression of geometrical relationships and its configuration dependent on the AID pixel Red Green Blue color source values. In this type of thinking, it explores the impact of the digital process and parametric thinking utility when driven by an AID overlay. The framework highlighted the practical application of AID pixel approach within a digital process to benefit both designers and computational tools developer on emerging design innovations.