bluuebunny/crossref_metadata_2025_split huggingface dataset:
A general performance calculation model of journal bearing using unified coordinate system
Authors: Zhu Aibin , Wu Hongling , Yang Yulei , He Shengli 
Published: March 2018

Purpose
Because of the various geometric descriptions of different bearing types, performance calculation of journal bearing is complicated, and is difficult in traditional model. This paper aims to simplify the calculation of the journal bearing performance, and to reduce the workload.

Design/methodology/approach
On the basis of previous research, a general performance calculation model of journal bearing is proposed in this paper. Eccentricity ratio and attitude angle of axis to each pad are calculated by coordinates of spindle center and each pad center by establishing the unified coordinate system. The surface deformation of journal bearing is taken into consideration, and a correction value is added to the dimensionless oil film thickness.

Findings
The performance calculation results of various fix-pad and tilting-pad journal bearings match the results of the existing references very well, revealing the validity of the model. The general model can greatly reduce programming workload, and increase adaptability to different bearings.

Originality/value
Geometric descriptions of both fix-pad and tilting-pad journal bearings are unified in this model, which can be applied to both standard and non-standard journal bearings with different preload ratios. In addition, due to the unification of different bearings types, this model is more conducive to performance comparison among different bearing types, and promotes the development of new structural forms for journal bearings.
Optimal decisions and coordination strategy of a capital-constrained supply chain under customer return and supplier subsidy
Authors: Bi Gongbing , Chen Ping , Fei Yalei 
Published: March 2018

PurposeThe purpose of the paper is to explore impacts of financing and supplier subsidy on capital-constrained retailer and the value of returns subsidy contract under a situation where the retailer makes joint operations and finance decisions.Design/methodology/approachThis paper considers a two-level supply chain, including a retailer and a supplier. Facing problems of capital constraints and even customer returns, the newsvendor-like retailer orders from a well-capitalized supplier. The supplier allows the retailer a delay in payment and provides a subsidy contract to alleviate its problems if it is profitable. Considering their difference of initial capital status, the retailer is assumed to be Follower of Stackelberg Game and the supplier is the Leader.FindingsThe supplier return subsidy contract has some merits for both of partners in the chain. And it does not coordinate the supply chain when the retailer has enough initial capital; however, when the retailer is capital constrained, it does. In addition, the retailer’s initial capital level significantly affects the supplier’s subsidy decision.Research limitations/implicationsReturn rate is simplified to a fixed proportion of completed demand. In addition, trade credit is only financing source in this paper, and other types of financing methods, such as bank credit, can be taken too.Originality/valueThis paper first incorporates trade credit financing and customer returns into a modeling framework to investigate the capital-constrained retailer’s joint operations and finance decisions and the value of supplier’s subsidy contract.
Information technology, knowledge management and human resource management
Authors: Turulja Lejla , Bajgoric Nijaz 
Published: March 2018

PurposeDrawing on dynamic capability view, this study aims to offer a conceptual framework to clarify the nature of the effects of firm’s information technology (IT) capability, knowledge management (KM) capability and human resource management (HRM) capability on organizational business performance. IT is the driver that changes all aspects of doing business in the digital era, while both knowledge and human resources (HR) are being increasingly regarded as key levers of competitive advantage in today’s global, dynamic and complex business environment.Design/methodology/approachThe survey methodology was used to collect data. To clarify the relationships between IT capability, KM capability and organizational business performance, the qualitative literature review has been conducted. This review has revealed the three structural models presenting possible interactions between observed constructs. Confirmatory factor analysis has been used for the evaluation of proposed measurement models while structural equation modeling has been used for structural models’ assessments and hypotheses testing.FindingsIT capability enhances HRM capability which enhances KM capability. As a result, KM capability together with IT capability enhances organizational business performance. In addition, there is an interaction effect of KM capability and HRM capability on business performance.Research limitations/implicationsFirst, the sample is based on the emerging economy firms. Second, the use of a self-rating performance measure may be a limitation of the study. Third, the data are not completely normally distributed. Fourth, specificities of different industries were not the subject of analysis in this paper. This should be considered in the interpretation and understanding of the results.Practical implicationsFrom managerial point of view, the paper indicates what managers can do to master their dynamic capabilities, especially those relevant to the business in the digital era. Firms are urged to develop and improve their capabilities to face dynamic environment and intense competition, as well as business globalization. However, to improve certain capability, firms should develop others as well because of their interconnectedness.Originality/valueThe main academic contribution of this study is reflected through the development of the integrative model which is aimed at identifying the interrelationships among IT, KM, HRM and business performance. The results indicate the importance of observing interconnections between the firms’ various capabilities to verify the premise of the dynamic capability view. This paper identified relationships between most prominent firm’s resources for the digital era: knowledge, HR and IT. The results show causes and effects of relationships between capabilities related to these resources.
Larvicidal potency of selected xerophytic plant extracts on Culex pipiens (Diptera: Culicidae)
Authors: Abutaha Nael , Al‐Mekhlafi Fahd A. , Al‐Keridis Lamya Ahmed , Farooq Muhammad , Nasr Fahd A. , Al‐Wadaan Muhammad 
Published: March 2018

AbstractChemical insecticides released into the environment may have adverse biological effects. Therefore, there is a need for ecofriendly insecticides for mosquito control. Xerophytic plant extracts that may provide more ecofriendly active component were evaluated against Culex pipiens 4th instars. Plant extracts prepared using different solvents with a Soxhlet apparatus and different concentrations were tested against Culex pipiens larvae. The effects were observed at 24 h and 72 h intervals and LD50 and LD90 values determined. Chloroform (CHCl3) and ethyl acetate (EtOAc) extracts of Althaea ludwigii were the most effective against Cx. pipiens 4th instars, but were highly dependent on extract concentrations and exposure time. Results suggest that A. ludwigii extracts contain bioactive compounds, such as phenols and saponins, that may provide effective Cx. pipiens larval control. However, the extract was found to be toxic to zebrafish larvae, and may be toxic to other aquatic fauna. Further studies to determine the active components and toxicity to other fauna are needed.
Fine structure of the canal neuromasts of the lateral line system in the adult zebrafish
Authors: Laurà R. , Abbate F. , Germanà G. P. , Montalbano G. , Germanà A. , Levanti M. 
Published: March 2018

SummaryThe mechanosensory lateral line system of fish is responsible for several functions such as balance, hearing, and orientation in water flow and is formed by neuromast receptor organs distributed on head, trunk and tail. Superficial and canal neuromasts can be distinguished for localization and morphological differences. Several information is present regarding the superficial neuromasts of zebrafish and other teleosts especially during larval and juvenile stages, while not as numerous data are so far available about the ultrastructural characteristics of the canal neuromasts in adult zebrafish. Therefore, the aim of this study was to investigate by transmission electron microscopy the ultrastructural aspects of cells present in the canal neuromasts. Besides the typical cellular aspects of the neuromast, different cellular types of hair cells were observed that could be identified as developing hair cells during the physiological turnover. The knowledge of the observed cellular types of the canal neuromasts and their origin could give a contribution to studies carried out on adult zebrafish used as model in neurological and non‐neurological damages, such as deafness and vestibular disorders.
Exploring treatment decision‐making in cancer management for rural residents: Patient and provider perspectives on a recently established regional radiotherapy service
Authors: Birch Eleanor M. , Haigh Margaret M. , Baxi Siddhartha , Lyford Marilyn , Cheetham Shelley , Shahid Shaouli , Thompson Sandra C. 
Published: March 2018

AbstractAimThe aim of this study was to examine stakeholders' views of how the establishment of the South West Radiation Oncology Service in Bunbury, Western Australia, has affected treatment decision‐making, and the extent to which patients are involved in the decision‐making process.MethodsSemi‐structured in‐depth interviews were undertaken with 21 service providers involved in the treatment and care of people with cancer, and 17 adults diagnosed with cancer who opted to undergo radiotherapy (RT) treatment at the Service. Data were subject to thematic analysis using the qualitative data analysis software NVivo 10.ResultsPatients were overwhelmingly positive about their experiences at the Service, praising the quality of the care provided and noting the convenience associated with receiving treatment locally. Most patients reported feeling involved in decision‐making, but tended to rely on and generally adopt advice from medical professionals regarding type and location of treatment. Although service providers in the region had become more aware of the regional RT service and referrals had increased, some patients continued to travel to the metropolitan area for treatment. Reasons identified for this included the need for more specialized RT treatment and the more extensive range of allied health services offered.ConclusionIncreased convenience and a lower financial burden are key reasons why rural cancer patients prefer treatment at a regional RT service rather than travelling to metropolitan centers. These factors highlight the need for ongoing improvement in access to local RT services so that disparities in cancer outcomes between rural and metropolitan patients are reduced.
Management of uterine ectopic pregnancy – local vs. systemic methotrexate
Authors: Koch Marianne , Schwab Stephanie , Meyer Elias , Montanari Eliana , Bader Yvonne , Ott Johannes , Helmy Samir 
Published: March 2018

AbstractIntroductionThe aim of this study was to compare ultrasound‐guided local methotrexate (MTX) vs. systemic methotrexate in uterine ectopic pregnancy regarding the beta human chorionic gonadotropin (hCG) clearance duration.Material and methodsPatients with interstitial pregnancy, cervical pregnancy or cesarean scar pregnancy were included. Methotrexate was administered locally ultrasound‐guided (25 mg methotrexate fixed dose) or systemically (intramuscular; 50 mg/m2 body weight). Beta hCG clearance duration in days formed the main outcome measure.ResultsForty‐six patients with uterine ectopic pregnancy were included. The mean estimated beta hCG clearance duration was 29.2 days longer in patients with local methotrexate compared with systemic methotrexate (64.7 vs. 31.5 days, respectively; p = 0.026). There was no significant difference between local vs. systemic methotrexate regarding adverse events such as bleeding (p = 0.376), pain (p = 0.146) or secondary surgery (p = 0.631). There was no association of initial beta hCG levels (p = 0.746), initial progesterone levels (p = 0.870) or patients’ age (p = 0.604) and the beta hCG clearance duration. No significant difference in beta hCG clearance duration comparing local methotrexate injection with aspiration vs. local methotrexate injection without aspiration could be found (mean 49.4 and 71.6 days, respectively, p = 0.225).ConclusionsIn patients with uterine ectopic pregnancies, the mean estimated beta hCG clearance duration was 29.2 days longer when applying local methotrexate compared with systemic methotrexate.
Coptisine, a natural alkaloid from Coptidis Rhizoma, inhibits plasmodium falciparum dihydroorotate dehydrogenase
Authors: Lang Li , Hu Qian , Wang Jingyuan , Liu Zehui , Huang Jin , Lu Weiqiang , Huang Ying 
Published: March 2018

Plasmodium falciparum dihydroorotate dehydrogenase (PfDHODH) is a promising drug target for antimalarial chemotherapy. In our continuous efforts to develop more potent PfDHODH inhibitors, a unique library of active ingredients from traditional Chinese medicine (TCM) has been collected and was screened in this study. Through the initial screening, we found that coptisine, a natural alkaloid from TCM Coptidis Rhizoma, was a novel and potent inhibitor of PfDHODH with an IC50 value of 1.83 ± 0.08 μm. At the same time, enzyme kinetic analysis using Lineweaver‐Burk plot indicated that coptisine is an uncompetitive inhibitor for PfDHODH. Thermal shift assay and molecular docking simulation research reveal that coptisine is capable of binding with PfDHODH. Moreover, coptisine exhibits weak inhibition activity against human DHODH, indicating that coptisine is a selective inhibitor of PfDHODH. Taken together, our study highlights the potential of active ingredients in TCM as valuable resource for discovering novel chemical scaffolds for PfDHODH.
“We are caregivers, too”: Foster siblings' difficulties, strengths, and needs for support
Authors: Raineri Maria Luisa , Calcaterra Valentina , Folgheraiter Fabio 
Published: March 2018

AbstractChildren's foster care is practised and studied in many parts of the world, but little attention is paid to foster parents' birth children, despite their right to participate in a process that concerns their lives and despite the role they play in foster care. Drawing on qualitative data collected from 15 foster siblings and 14 foster parents, this paper presents birth children's experiences with the beginning of foster care, their perceptions of the positive and negative aspects of living with a foster child, and their suggestions for foster parents, foster children, and professionals. The data reveal that birth children feel engaged in a caregiver role; therefore, they need guidance with regard to this role. However, social workers and other professionals do not appear to fully recognize this role. Implications for practice are discussed.
Fish functional diversity responses following flood pulses in the upper Paraná River floodplain
Authors: Baumgartner Matheus T. , de Oliveira Anielly G. , Agostinho Angelo A. , Gomes Luiz C. 
Published: March 2018

AbstractFlood pulses are the main force driving the dynamics of aquatic communities in floodplains. The responses of communities to environmental changes following flood pulses usually demand a time lag to appear and reach the climax. We assembled a data set of 16 years of fish samplings to assess the relationship between water level and four functional diversity measures, in the upper Paraná River floodplain. Specifically, we approached four aspects of each relationship between water level and functional diversity: nature (positive or negative), sensitivity (response intensity), responsiveness (response delay) and extent (response duration). The nature of the relationship between water level and functional diversity was positive in all cases. Functional richness (FRic) responded right after flood pulses, although with shorter extent. Abundance‐dependent functional measures (evenness—FEve; divergence—FDiv; and Rao's quadratic entropy—Rao's Q) presented delayed responses, reaching peaks more than 1.5 years after flood pulses. Significant effects of floods on fish functional diversity were observed for more than 3 years, although the highest functional diversity was observed with 1.8 years, on average. More importantly, flood pulses had no longer significant effects on functional diversity after 4 years. Regarding conservation strategies in regulated systems, flood events should occur every 2 or 3 years, with adequate timing (October‐November), intensity (up to 450 cm) and duration (at least 50 uninterrupted days). Intervals longer than 3 years or inadequate timing, intensity and duration could dramatically decrease functional diversity and compromise ecosystem services.
Swimming responses of larval and juvenile freshwater fishes to nearshore and offshore water sources
Authors: Malinich Timothy D. , Pangle Kevin 
Published: March 2018

AbstractDispersal of young fish through wind‐driven currents has a growing research focus in large freshwater lakes; however, the influence of behaviour on such dispersal has not been tested. Fish may orient to different environmental cues and use swimming behaviours to navigate towards or retain their position within important habitats. To examine the ability of larval and juvenile fishes of the Laurentian Great Lakes to perceive and orient to nearshore or offshore habitats, we carried out a series of behavioural trials in a flume in which fish choose between different combinations of nearshore and offshore water, and well water. Water and a natural assemblage of larval and juvenile nearshore fish (Dominant species: white sucker, Catostomus commersonii, and spottail shiners, Notropis hudonius) used in the experiment were collected from northern Lake Michigan near Beaver Island. Results of our study suggest that young fish are capable of distinguishing and responding to different water sources, indicating a potential to orient within their environment, such as through the use of olfactory cues. We did not see a difference in fish response to changing concentrations of water cues, possibly suggesting that the threshold for fish response occurs at lower concentrations than were tested in our experiments. This preliminary study into orientation of Great Lakes fishes demonstrates the capacity of these fish to orient to cues in water sources and indicates the need to consider active movement in future studies of larval dispersal and habitat choice in the large freshwater lakes.
Multiaxial notch fatigue life prediction based on pseudo stress correction and finite element analysis under variable amplitude loading
Authors: Tao Z.‐Q. , Shang D.‐G. , Sun Y.‐J. , Liu X.‐D. , Chen H. , Li Z.‐G. 
Published: March 2018

AbstractA new computational methodology is proposed for fatigue life prediction of notched components subjected to variable amplitude multiaxial loading. In the proposed methodology, an estimation method of non‐proportionality factor (F) proposed by authors in the case of constant amplitude multiaxial loading is extended and applied to variable amplitude multiaxial loading by using Wang‐Brown's reversal counting approach. The pseudo stress correction method integrated with linear elastic finite element analysis is utilized to calculate the local elastic‐plastic stress and strain responses at the notch root. For whole local strain history, the plane with weight‐averaged maximum shear strain range is defined as the critical plane in this study. Based on the defined critical plane, a multiaxial fatigue damage model combined with Miner's linear cumulative damage law is used to predict fatigue life. The experimentally obtained fatigue data for 7050‐T7451 aluminium alloy notched shaft specimens under constant and variable amplitude multiaxial loadings are used to verify the proposed methodology and equivalent strain‐based methodology. The results show that the proposed methodology is superior to equivalent strain‐based methodology.
How can “Super Corals” facilitate global coral reef survival under rapid environmental and climatic change?
Authors: Camp Emma F. , Schoepf Verena , Suggett David J. 
Published: March 2018

AbstractCoral reefs are in a state of rapid global decline via environmental and climate change, and efforts have intensified to identify or engineer coral populations with increased resilience. Concurrent with these efforts has been increasing use of the popularized term “Super Coral” in both popular media and scientific literature without a unifying definition. However, how this subjective term is currently applied has the potential to mislead inference over factors contributing to coral survivorship, and the future trajectory of coral reef form and functioning. Here, we discuss that the information required to support a single definition does not exist, and in fact may never be appropriate, i.e. “How Super is Super”? Instead, we advocate caution of this term, and suggest a workflow that enables contextualization and clarification of superiority to ensure that inferred or asserted survivorship is appropriate into future reef projections. This is crucial to robustly unlock how “Super Corals” can be integrated into the suite of management options required to facilitate coral survival under rapid environmental and climate change.
Comparison of body composition and physical and cognitive function between older Japanese adults with no diabetes, prediabetes and diabetes: A cross‐sectional study in community‐dwelling Japanese older people
Authors: Kera Takeshi , Kawai Hisashi , Hirano Hirohiko , Kojima Motonaga , Watanabe Yutaka , Fujiwara Yoshinori , Ihara Kazushige , Obuchi Shuichi 
Published: March 2018

AimDiabetes is associated with not only cardiovascular and cerebrovascular disease, but also reductions in physical and cognitive function. The purpose of the present study was to determine whether muscle strength, walking ability and balance declined in Japanese community‐dwelling older adults with diabetes or prediabetes.MethodsWe analyzed data from comprehensive health checkups carried out for 1689 individuals (710 men, 979 women; mean age 71.4 ± 5.6 years) between 2011 and 2016. Participants were divided into three groups: no diabetes (non‐history of diabetes and glycated hemoglobin level <5.7%), prediabetes (non‐history of diabetes, but glycated hemoglobin level was 5.7–6.4%) and diabetes (history of diabetes or glycated hemoglobin level >6.4%). Physical and cognitive function were compared between groups after adjusting for covariates.ResultsParticipants with diabetes showed higher levels of obesity, comorbidity, gonarthrosis, and body fat, and lower levels of physical function relative to those observed in participants with prediabetes or no diabetes. After adjusting covariates, participants with diabetes showed significantly lower grip strength (P < 0.010), slower walking speed (P < 0.005), longer Timed Up and Go test time (P < 0.007) and less time spent standing on one foot (P < 0.001) relative to those with no diabetes, but not those with prediabetes.ConclusionsSignificant functional decline was observed in community‐dwelling older adults with diabetes, but not in those with prediabetes. Prevention of the progression of prediabetes to diabetes is important in avoiding reductions in physical function. Geriatr Gerontol Int 2018; 18: 1031–1037.