bluuebunny/crossref_metadata_2025_split huggingface dataset:
Timing of Gestational Weight Gain and Adverse Perinatal Outcomes in Overweight and Obese Women
Authors: Feghali Maisa N. , Catov Janet M. , Zantow Emily , Mission John , Caritis Steve N. , Scifres Christina M. 
Published: April 2019

OBJECTIVE:
To evaluate whether inadequate or excessive gestational weight gain before the third trimester is associated with adverse pregnancy outcomes, and to evaluate the association of weight gain in the third trimester with fetal growth.

METHODS:
This was a retrospective cohort study of all eligible overweight and obese women with singleton pregnancies delivered at an academic institution between 2012 and 2014. Our primary exposure was inadequate or excess gestational weight gain during the first and second trimesters. Outcomes included small- (SGA) or large- (LGA) for-gestational-age birth weight as well adverse maternal outcomes and composite neonatal morbidity. Multivariable logistic regression was used to assess the relationship between weight gain and perinatal outcomes, and stratified analyses evaluated the relationship between third trimester weight gain and birth weight category.

RESULTS:
Of the 5,814 women, 1,280 (22%) had adequate, 1,428 (24.6%) had inadequate, and 3,106 (53.4%) had excessive weight gain in the first and second trimesters. Women with inadequate early gestational weight gain were more likely to deliver an SGA neonate (adjusted odds ratio [aOR] 1.59, 95% CI 1.23–2.06) and less likely to deliver an LGA neonate (aOR 0.73, 95% CI 0.54–0.98), whereas those with excessive early gestational weight gain were less likely to deliver an SGA neonate (aOR 0.66, 95% CI 0.52–0.85) and more likely to deliver an LGA neonate (aOR 1.66, 95% CI 1.32–2.1). Higher weight gain in the third trimester was associated with increased risk for LGA birth weight, but third trimester weight gain was not related to SGA birth weight.

CONCLUSION:
Early gestational weight gain is associated with birth weight category. Modifying weight gain in the third trimester may limit the risk for LGA birth weight, but higher weight gain in late gestation does not alter the association between inadequate early weight gain and the risk for SGA.
Lower Eyelid Distraction Test: New Insights on the Reference Value
Authors: Milbratz-Moré Gherusa H. , Pauli Mayara P. , Lohn Caroline L. B. , Pereira Filipe J. , Grumann Astor J. 
Published: April 2019

In this study, the authors performed the eyelid distraction test in 200 healthy individuals, bringing to the literature the new information that there is a variability of the normal test’s value regarding age and gender.

Purpose:
The evaluation of palpebral laxity can be performed by the distraction test (DT). Although widely used in ophthalmologic practice, there is no consensus about the results considered normal by the test. The objectives of this study are to obtain the value of DT in a group of individuals with healthy eyelids and to compare with the measurements in subjects with senile ectropion.

Methods:
Lower eyelid DT was performed in 200 individuals without any eyelid pathology and in 30 individuals with lower lid ectropion. The results were analyzed by age and sex in the control group and compared with the results of the ectropion group.

Results:
The mean value of DT in the control group was 6.96 mm, lower than in the ectropion group (9.48 mm) (p < 0.001). In the control group, the mean female DT was 6.70 mm, while the male was 7.22 mm. There were differences in the DT values in the subgroups of 20–39 and 40–59-year old according to gender, with men presenting higher measurements than women. In the other age subgroups, both genders presented similar DT values. Even when considering only individuals in the control group with the same range of age as in the ectropion group, the DT value was higher in individuals with ectropion (7.23 and 9.48 mm, respectively, p < 0.001).

Conclusions:
The mean DT value is 6.96 mm; however, the measurement varies according to age and sex in people without palpebral pathology. Individuals with senile eyelid ectropion present higher measurements than healthy ones.
The relationship between regional pain with or without neuropathic symptoms and chronic widespread pain
Authors: McBeth John , Mulvey Matthew R. , Rashid Amir , Anderson James , Druce Katie 
Published: April 2019

Abstract
This study was performed to test whether the risk of developing chronic widespread pain (CWP) in those with regional pain was augmented in those with symptoms of neuropathic pain (NP). Persons free of CWP completed the Douleur Neuropathique 4 (scores ≥3 indicating NP); demographics; Hospital Anxiety and Depression scale; Pittsburgh Sleep Quality Index; and pain medications. Participants were classified as having no pain, regional pain with no symptoms of NP (

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), or regional pain with symptoms of NP (NP). At the 12-month follow-up, participants with CWP were identified. Logistic regression estimated the odds ratio, with 95% confidence intervals, of CWP in the

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and NP groups compared with no pain, and NP compared with

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. Partial population attributable risks estimated the proportion of CWP attributable to baseline

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or NP exposure. One thousand one hundred sixty-two participants completed the baseline DN4 and provided pain data at follow-up: 523 (45.0%) had no baseline pain, 562 (48.4%)

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, and 77 (6.6%) NP. One hundred fifty-three (13.2%) had CWP at 12 months: 19 (3.6%) no pain, 108 (19.2%)

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, and 26 (33.8%) NP.

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(2.9 [1.9-4.3]) and NP (2.1 [1.1-4.0]) predicted CWP after adjusting for demographics, Hospital Anxiety and Depression scale, Pittsburgh Sleep Quality Index, and medications. The partial population attributable risk was 41.3% (25.2-54.0) for

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and 6.0% (0.1-11.6) for NP. The NP group were not more likely to develop CWP when compared directly with

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(1.5 [0.8-2.8]). Neuropathic pain was relatively rare and predicted a small number of new-onset CWP cases. Using these estimates, treatments targeting NP would at best prevent 6% of CWP cases.
Diagnosis and Successful Management of an Unusual Presentation of Chronic Foot Pain Using Positron Emission Tomography/Magnetic Resonance Imaging and a Simple Surgical Procedure
Authors: Cipriano Peter William , Yoon Daehyun , Holley Dawn , Hargreaves Brian Andrew , Carroll Ian Richard , Curtin Catherine Mills , Biswal Sandip 
Published: April 2019

Abstract:
A 61-year-old man presented with chronic dorsal foot pain of 9 years that worsened with ambulation. Conventional diagnostic imaging and medical workup were unrevealing, and ankle arthrodesis had been recommended by an orthopedic surgeon for pain relief. Instead, the patient participated in a clinical imaging trial designed for identifying pain generators using whole-body fluorodeoxyglucose (18F-FDG) positron emission tomography/magnetic resonance imaging (PET/MRI). The scan revealed not only high 18F-FDG uptake at the site of pain, but also a hematoma and an inflamed, fibrotic, ruptured plantaris muscle. The fibrotic plantaris likely altered biomechanics with walking, explaining why symptoms worsened with activity. A simple tenotomy of the plantaris tendon was performed to decouple ankle movement from the plantaris injury, resulting in pain relief. This case illustrates the potential of whole-body 18F-FDG PET/MRI to better localize pain generators.
Ventilatory Support via Mouthpiece to Facilitate Ambulation
Authors: Pinto Tiago C. , Winck João Carlos , Gonçalves Miguel R. 
Published: April 2019

Objective
The aim of the study was to evaluate the efficacy of noninvasive ventilatory assistance/support via mouthpiece to improve performance in 6-min walk tests for individuals with severe restrictive ventilatory disorders.

Design
Each subject performed the 6-min walk test breathing spontaneously and again while using mouthpiece noninvasive ventilatory assistance/support at full ventilatory support. Oxyhemoglobin saturation (O2 sat), heart rate, Borg scale, distance walked, and ambulation duration were recorded.

Results
Eighteen patients using nocturnal nasal noninvasive ventilatory assistance/support, median (interquartile range) age of 58.5 (20) yrs, were studied. Their median baseline forced vital capacity and Paco
2 were 940 (385) ml and 54.1 (6) mm Hg, respectively. All used noninvasive ventilatory assistance/support for at least overnight hours for 36 (111) mos. Because of the progression of ventilatory impairment and hypercapnia, daytime mouthpiece noninvasive ventilatory assistance/support was initiated. All the 6-min walk test parameters improved significantly by using noninvasive ventilatory assistance/support. Both initial and final values of O2 saturation significantly increased (92% [6] vs 96% [2], P < 0.001) and (80% [19] vs 85.50% [13], P = 0.001), respectively. The median distance walked increased by 43% with noninvasive ventilatory assistance/support (175 [218] m vs 250 [113] m, P = 0.017), and the total ambulation time also increased with noninvasive ventilatory assistance/support (5.45 [3] mins vs. 6 [0] mins, P = 0.008).

Conclusions
The exercise tolerance of patients with severe ventilatory impairment can improve by using noninvasive ventilatory support.
Adaptive parallel tempering for BEAST 2
Authors: Müller Nicola F. , Bouckaert Remco R. 
Published: April 2019

AbstractWith ever more complex models used to study evolutionary patterns, approaches that facilitate efficient inference under such models are needed. Parallel tempering has long been used to speed up phylogenetic analyses and to make use of multi-core CPUs. Parallel tempering essentially runs multiple MCMC chains in parallel. All chains are heated except for one cold chain that explores the posterior probability space like a regular MCMC chain. This heating allows chains to make bigger jumps in phylogenetic state space. The heated chains can then be used to propose new states for other chains, including the cold chain. One of the practical challenges using this approach, is to find optimal temperatures of the heated chains to efficiently explore state spaces. We here provide an adaptive parallel tempering scheme to Bayesian phylogenetics, where the temperature difference between heated chains is automatically tuned to achieve a target acceptance probability of states being exchanged between individual chains. We first show the validity of this approach by comparing inferences of adaptive parallel tempering to MCMC on several datasets. We then explore where parallel tempering provides benefits over MCMC. We implemented this adaptive parallel tempering approach as an open source package licensed under GPL 3.0 to the Bayesian phylogenetics software BEAST2, available fromhttps://github.com/nicfel/CoupledMCMC.
Paired design of ATP bioluminescence method and colony counting method: whether it is suitable for evaluating the disinfection effect of environmental surface?
Authors: Xu Huiqiong , Liang Jiansheng , Wang Yimei , Wang Bin , Zhang Tianbao , Liu Xiaoli , Gong Lin 
Published: April 2019

AbstractATP bioluminescence method has been used as a on-site rapid detection method in nosocomial infections control more and more. In this study, a paired design between four methods/detectors were performed to detect the environmental surface after disinfection. Two methods were ATP bioluminescence method and colony counting method (C), and ATP bioluminescence method included three kinds of detectors (B, P and N). Every surface was performed by two methods/detectors. ATP content per surface from ICU had no statistically significant difference with internal medicine wards of B and P, of which p was 0.435 and 0.260. By Spearman rank correlation coefficients, with the exception of better correlation between ATP content detected by B and P, the correlation between the remaining methods/detectors was poor or had no correlation. And the differences between detectors are statistically significant. Therefor, ATP bioluminescence method may not be suitable for the evaluation of disinfection effect, but be more appropriate for evaluating the cleanliness of environmental surface.
Improved ant colony optimization algorithm and its application to solve pipe routing design
Authors: Wu Lei , Tian Xue , Wang Hongyan , Liu Qi , Xiao Wensheng 
Published: April 2019

Purpose
As a kind of NP-hard combinatorial optimization problem, pipe routing design (PRD) is applied widely in modern industries. In the offshore oil and gas industry, a semi-submersible production platform is an important equipment for oil exploitation and production. PRD is one of the most key parts of the design of semi-submersible platform. This study aims to present an improved ant colony algorithm (IACO) to address PRD for the oil and gas treatment system when designing a semi-submersible production platform.

Design/methodology/approach
First, to simplify PRD problem, a novel mathematical model is built according to real constraints and rules. Then, IACO, which combines modified heuristic function, mutation mechanism and dynamical parameter mechanism, is introduced.

Findings
Based on a set of specific instances, experiments are carried out, and the experimental results show that the performance of IACO is better than that of two variants of ACO, especially in terms of the convergence speed and swarm diversity. Finally, IACO is used to solve PRD for the oil and gas treatment system of semi-submersible production platform. The simulation results, which include nine pipe paths, demonstrate the practicality and high-efficiency of IACO.

Originality/value
The main contribution of this study is the development of method for solving PRD of a semi-submersible production platform based on the novel mathematical model and the proposed IACO.
User participation and valuation in digital art platforms: the case of Saatchi Art
Authors: Lee Jin Woo , Lee Soo Hee 
Published: April 2019

PurposeThe purpose of this paper is to examine the impact of digital platforms on the contemporary visual art market. Drawing on the theoretical insights of the technology acceptance model, the meaning transfer model and arts marketing literature, the authors conceptualise the role of user participation in creating the meaning and value of contemporary artworks in the online art market.Design/methodology/approachThe authors conduct a qualitative study of Saatchi Art as an instrumental case for theorising. It is an online platform for trading visual artworks created by young and emerging artists. The data for this study were collected through direct observation and documentary reviews, as well as user comments and buyer reviews from Saatchi Art. The authors reviewed 319 buyer comments Art and 30 user comments. The collected data are supplemented with various secondary sources such as newspapers, magazines, social media texts and videos.FindingsThe growth of digital art platforms such as Saatchi Art provides efficiency and accessibility of information to users while helping them overcome the impediments of physical galleries such as geographical constraints and intimidating psychological environments, thereby attracting novice collectors. However, users’ involvement in the process of valuing artworks is limited and still guided by curatorial direction.Research limitations/implicationsThe first limitation of this research is that the data in this research cannot capture interactions between users, though users’ intention to use Saatchi Art is affected by the social influence of other users. Second, this research has not examined artists as users of digital art platforms and their interactions with other types of users. Artists’ intention to use the online platform might be underlined by enhancing their status in the peer group or seeking legitimacy in the field by following other artists and getting recommendations from important referents.Practical implicationsThe outcomes of this research suggest that newcomers in the online art market should acknowledge that users’ intention to use the online art platform is determined by not only technological usefulness of the website but also the symbolic capital of the information provider.Originality/valueUser participation in the online art market is guided by curatorial direction rather than social influence. This confirms re-intermediation of marketing relationships, highlighting the role of new intermediaries such as digital platforms in arts marketing.
Retrieval effectiveness of image search engines
Authors: Hussain Aabid , Gul Sumeer , Shah Tariq Ahmad , Shueb Sheikh 
Published: April 2019

Purpose
The purpose of this study is to explore the retrieval effectiveness of three image search engines (ISE) – Google Images, Yahoo Image Search and Picsearch in terms of their image retrieval capability. It is an effort to carry out a Cranfield experiment to know how efficient the commercial giants in the image search are and how efficient an image specific search engine is.

Design/methodology/approach
The keyword search feature of three ISEs – Google images, Yahoo Image Search and Picsearch – was exploited to make search with keyword captions of photos as query terms. Selected top ten images were used to act as a testbed for the study, as images were searched in accordance with features of the test bed. Features to be looked for included size (1200 × 800), format of images (JPEG/JPG) and the rank of the original image retrieved by ISEs under study. To gauge the overall retrieval effectiveness in terms of set standards, only first 50 result hits were checked. Retrieval efficiency of select ISEs were examined with respect to their precision and relative recall.

Findings
Yahoo Image Search outscores Google Images and Picsearch both in terms of precision and relative recall. Regarding other criteria – image size, image format and image rank in search results, Google Images is ahead of others.

Research limitations/implications
The study only takes into consideration basic image search feature, i.e. text-based search.

Practical implications
The study implies that image search engines should focus on relevant descriptions. The study evaluated text-based image retrieval facilities and thereby offers a choice to users to select best among the available ISEs for their use.

Originality/value
The study provides an insight into the effectiveness of the three ISEs. The study is one of the few studies to gauge retrieval effectiveness of ISEs. Study also produced key findings that are important for all ISE users and researchers and the Web image search industry. Findings of the study will also prove useful for search engine companies to improve their services.
Crop switching as an adaptation strategy to climate change: the case of Semien Shewa Zone of Ethiopia
Authors: Tessema Yibekal Abebe , Joerin Jonas , Patt Anthony 
Published: April 2019

Purpose
The geographical range of agricultural crops is shifting because of climate change. Reducing the potential negative impact of this shift requires efficient crop switching at farm level. Yet there are scant studies that examine how crop switching is currently taking place and what factors facilitate the process. Even these few existing studies often based their analysis on inadequately established causal link between climate change and switching decisions. This study aims to identify the specific switching decisions that are primarily motivated by climate change, and their determinants.

Design/methodology/approach
The study used a household survey on 190 households in Semien Shewa Zone in Ethiopia. Subjective rating of farmers was used to identify the relative importance of climate change in motivating the different types of switching decisions. A logit model is used to identify determinants of crop switching decisions primarily motivated by climate change.

Findings
Farmers in the study area are currently abandoning certain crops as a response to climate change. The adoption of new crops is, however, mainly attributed to price changes. Most farmers who abandoned at least one crop adopted mung bean mainly due to its price advantages. As expected, crop switching as an adaptation strategy is more prevalent particularly in drier and hotter agroecologies. The logit model showed that crop switching is strongly correlated with land size and agroecology.

Originality/value
This paper provides an in-depth examination of crop switching as an adaptation strategy to climate change. Crop switching is an adaptation strategy that is expected to substantially reduce the damage from climate change in agriculture. The findings are particularly relevant for adaptation planning in the context of smallholder agriculture.
Are consumers loyal to home-sharing services?
Authors: Xie Karen L. , Kwok Linchi , Wu Jiang 
Published: April 2019

Purpose
The purpose of this study is to examine the effects of host attributes and travelers’ frequency of past stays and their interaction on the likelihood of repeat purchase of home-sharing services at both the host and listing levels.

Design/methodology/approach
A combination of econometrics analyses using a large-scale, granular online observational data set collected from a home-sharing platform was performed.

Findings
Travelers exhibit salient loyalty to home-sharing services. At the host level, host attributes including acceptance rate and listing capacity positively affect travelers’ likelihood of repeat purchase; such effects diminish as travelers’ frequency of past stays with a host/listing increases. At the listing level, confirmation efficiency and acceptance rate are critical, and travelers’ frequency of past stays matters.

Research limitations/implications
Responding to the call for more research on customer loyalty of sharing economy, this study instantiated on a home-sharing website in China and adds a unique perspective to the research domain, but its findings may not be generalized in other settings.

Practical implications
This study identifies the factors affecting customers’ repeat purchase behaviors at both the host and listing levels, allowing the hosts, webmasters of home-sharing websites and even hoteliers to advance specific tactics to promote repeat purchase among travelers.

Originality/value
Loyalty was measured with real-time internet-enabled observational data about travelers’ actual repeat purchase behavior on a home-sharing website, rather than assessing consumers’ behavioral intentions through the conventional survey method. Two specific levels of customer loyalty were analyzed, including the ones towards a service provider (host) and a service product (listing).