bluuebunny/crossref_metadata_2025_split huggingface dataset:
HOT Graphene and HOT Graphene Nanotubes: New Low Dimensional Semimetals and Semiconductors
Authors: Xu Lin-Han , Wu Shun-Qing , Huang Zhi-Quan , Zhang Feng , Chuang Feng-Chuan , Zhu Zi-Zhong , Ho Kai-Ming 
Published: March 2020

AbstractWe report a new graphene allotrope named HOT graphene containing carbon hexagons, octagons, and tetragons. A corresponding series of nanotubes are also constructed by rolling up the HOT graphene sheet. Ab initio calculations are performed on geometric and electronic structures of the HOT graphene and the HOT graphene nanotubes. Dirac cone and high Fermi velocity are achieved in a non-hexagonal structure of HOT graphene, implying that the honeycomb structure is not an indispensable condition for Dirac fermions to exist. HOT graphene nanotubes show distinctive electronic structures depending on their topology. The (0,1) n (n ≥ 3) HOT graphene nanotubes reveal the characteristics of semimetals, while the other set of nanotubes (1,0) n shows continuously adjustable band gaps (0~ 0.51 eV) with tube size. A competition between the curvature effect and the zone-folding approximation determines the band gaps of the (1,0) n nanotubes. Novel conversion between semimetallicity and semiconductivity arises in ultra-small tubes (radius < 4 Å, i.e., n < 3).
Indeterminate Domain Proteins Regulate Rice Defense to Sheath Blight Disease
Authors: Sun Qian , Li Dan Dan , Chu Jin , Yuan De Peng , Li Shuang , Zhong Li Juan , Han Xiao , Xuan Yuan Hu 
Published: March 2020

Abstract
Background
Loose Plant Architecture 1 (LPA1), an indeterminate domain (IDD) protein, exhibits almost no expression in the leaves, but the overexpression of LPA1 significantly increases the resistance of rice to sheath blight disease (ShB) via the activation of PIN-FORMED 1a (PIN1a).

Results
In this study, we determined that Rhizoctonia solani infection significantly induced LPA1 expression in the leaves, and lpa1 was more susceptible to R. solani compared with the wild-type and revertant plants. In addition, infection with R. solani altered the expression of IDD3, IDD5, IDD10, and IDD13, and yeast two-hybrid, split-GFP, and coimmunoprecipitation assays showed that LPA1 interacts with IDD3 and IDD13. IDD13 RNAi plants were more susceptible, while IDD13 overexpressors were less susceptible to ShB compared with the wild-type. In parallel, idd3 exhibited no significant differences, while IDD3 overexpressors were more susceptible compared to the wild-type response to ShB. Additional chromatin-immunoprecipitation and electrophoretic mobility shift assay experiments indicated that IDD13 and IDD3 bound to the PIN1a promoter, and the transient assay indicated that IDD13 and IDD3 positively and negatively regulate PIN1a expression, respectively. Moreover, IDD13, IDD3, and LPA1 form a transcription factor complex that regulates PIN1a. A genetic study showed that the LPA1 repressor lines were similar to lpa1/IDD13 RNAi and were more susceptible than the lpa1 and IDD13 RNAi plants in response to ShB. The overexpression of IDD13 increased resistance to ShB in the lpa1 background.

Conclusions
Taken together, our analyses established that IDD3, IDD13, and LPA1 form a transcription factor complex to regulate the defense of rice against ShB possibly via the regulation of PIN1a.
Identification and functional characterization of NbMLP28, a novel MLP-like protein 28 enhancing Potato virus Y resistance in Nicotiana benthamiana
Authors: Song Liyun , Wang Jie , Jia Haiyan , Kamran Ali , Qin Yuanxia , Liu Yingjie , Hao Kaiqiang , Han Fei , Zhang Chaoqun , Li Bin , Li Yongliang , Shen Lili , Wang Fenglong , Wu Yuanhua , Yang Jinguang 
Published: March 2020

Abstract
Background
Major latex proteins (MLPs) belong to the MLP subfamily in Bet v 1 protein family and respond to both biotic and abiotic stresses, which play critical roles in plant disease resistance. As the type species of widely distributed and economically devastating Potyvirus, Potato virus Y (PVY) is one of the major constraints to important crop plants including tobacco (Nicotiana benthamiana) worldwide. Despite the great losses owing to PVY infection in tobacco, there is no previous study investigating the potential role of MLPs in developing resistance to viral infection.

Results
In this study, for the first time we have identified and functionally analyzed the MLP-like protein 28 from N. benthamiana, denoted as NbMLP28 and investigated its role in conferring resistance to N. benthamiana against PVY infection. NbMLP28 was localized to the plasmalemma and nucleus, with the highest level in the root. NbMLP28 gene was hypothesized to be triggered by PVY infection and was highly expressed in jasmonic acid (JA) signaling pathway. Further validation was achieved through silencing of NbMLP28 through virus-induced gene silencing (VIGS) that rendered N. benthamiana plants more vulnerable to PVY infection, contrary to overexpression that enhanced resistance.

Conclusions
Taken together, this is the first study describing the role of NbMLP28 in tobacco against PVY infection and provide a pivotal point towards obtaining pathogen-resistant tobacco varieties through constructing new candidate genes of MLP subfamily.
Clinically useful prediction of hospital admissions in an older population
Authors: Marcusson Jan , Nord Magnus , Dong Huan-Ji , Lyth Johan 
Published: March 2020

Abstract
Background
The healthcare for older adults is insufficient in many countries, not designed to meet their needs and is often described as disorganized and reactive. Prediction of older persons at risk of admission to hospital may be one important way for the future healthcare system to act proactively when meeting increasing needs for care. Therefore, we wanted to develop and test a clinically useful model for predicting hospital admissions of older persons based on routine healthcare data.

Methods
We used the healthcare data on 40,728 persons, 75–109 years of age to predict hospital in-ward care in a prospective cohort. Multivariable logistic regression was used to identify significant factors predictive of unplanned hospital admission. Model fitting was accomplished using forward selection. The accuracy of the prediction model was expressed as area under the receiver operating characteristic (ROC) curve, AUC.

Results
The prediction model consisting of 38 variables exhibited a good discriminative accuracy for unplanned hospital admissions over the following 12 months (AUC 0.69 [95% confidence interval, CI 0.68–0.70]) and was validated on external datasets. Clinically relevant proportions of predicted cases of 40 or 45% resulted in sensitivities of 62 and 66%, respectively. The corresponding positive predicted values (PPV) was 31 and 29%, respectively.

Conclusion
A prediction model based on routine administrative healthcare data from older persons can be used to find patients at risk of admission to hospital. Identifying the risk population can enable proactive intervention for older patients with as-yet unknown needs for healthcare.
Is PrEP necessary during natural conception in HIV-1-serodiscordant couples on ART with suppressed viral load? A retrospective cohort analysis
Authors: Sun Lijun , Liu An , Li Jianwei , Shao Ying , Li Qiuyun , Ye Jiangzhu , Zhang Hongwei , Li Zaicun , Wang Hui 
Published: March 2020

Abstract
Background
Antiretroviral therapy (ART) demonstrates high efficacy in reducing the risk of HIV transmission to sexual partners. However, it is not clear if the use of pre-exposure prophylaxis (PrEP) in HIV-1-serodiscordant couples is necessary during natural conception when the HIV-positive partner exhibits a suppressed viral load. The purpose of this study was to assess the role of PrEP during natural conception in this population.

Methods
A retrospective, multicenter study was conducted in a cohort of HIV-1-serodiscordant couples (positive man, negative woman) with childbearing desires. HIV-positive male partners were treated with ART and achieved viral suppression for more than half a year. The HIV-negative female partners were either treated with PrEP or not treated with PrEP, and outcomes were compared between the two treatment groups.

Results
Of 246 HIV-1-serodiscordant couples in whom the HIV-positive partner achieved viral suppression, 104 seronegative women were treated with PrEP during natural conception and 142 seronegative women were not treated with PrEP. There were 410 condom-less sexual acts in couples treated with PrEP and 615 condom-less sexual acts in couples not treated with PrEP. We observed no instances of HIV transmission in HIV-1-serodiscordant couples with or without the use of PrEP during the process of natural conception.

Conclusions
Our results show that PrEP had minimal influence in reducing the risk of HIV transmission during natural conception in HIV-1-serodiscordant couples with a stably suppressed viral load. Thus, it may be an acceptable option for HIV-negative partners to not use PrEP during the process of natural conception if the HIV-positive partner has achieved viral suppression for more than half a year.
High dose haemodialysis and haemodiafiltration parameters and the relationship with advanced vascular calcification
Authors: Park Sung Keun , Kim Won Joong , Kim Hyun Jin , Kim Hae Won , Kim Beom , Lee Hong Joo , Lee So-Young , Lee Yu Ho , Kim Dong-Jin , Jeong Kyung-Hwan , Moon Ju-Young , Lee Sang-Ho , Ahn Shin Young , Ko Gang Jee , Ryoo Jae-Hong , Lee Dong-Young 
Published: March 2020

AbstractBackgroundVascular calcification (VC) is a risk factor for cardiovascular disease in end-stage renal disease (ESRD) patients undergoing maintenance haemodialysis (MHD). However, evidence is still insufficient about the association between dialysis parameters and VC. Thus, this study was to evaluate association of dialysis parameters with VC.MethodsWe enrolled 297 ESRD patients undergoing MHD at six distinct centers in Korea. Study participants were categorized into 3 groups by the scoring system of abdominal aortic calcification based on lateral lumbar radiography (no VC group: 0, mild VC group: 1–7 and advanced VC group: 8–24). We compared the features of dialysis parameters according to the severity of VC. Multivariate logistic regression analysis was used to calculate adjusted odd ratios (ORs) and 95% confidence interval (CI) for mild and advanced VC in each haemodialysis parameter (adjusted OR [95% CI]).ResultsPooled Kt/V (spKt/V), equilibrated Kt/V (eKt/V), standard Kt/V (stdKt/V) and the proportion of haemodiafiltration were increased along with the severity of VC. Multivariate regression analysis indicated that advanced VC was positively associated with spKt/V (5.27 [1.51–18.41]), eKt/V (6.16 [1.45–26.10]), stdKt/V (10.67 [1.74–65.52]) and haemodiafiltration (3.27 [1.74 to 6.16]).ConclusionHigh dose dialysis and haemodiafiltration were significantly associated with advanced VC.
LncRNA MAGI2-AS3 is down-regulated in intervertebral disc degeneration and participates in the regulation of FasL expression in nucleus pulposus cells
Authors: Cui Shuting , Liu Zizhen , Tang Bin , Wang Zhizhen , Li Baojian 
Published: March 2020

AbstractBackgroundIt is known that Fas ligand (FasL) is involved in the development of intervertebral disc degeneration (IDD). A recent study reported that lncRNA MAGI2-AS3 up-regulated the expression of FasL to promote breast cancer. Therefore, we investigated the roles that lncRNA MAGI2-AS3 might play in IDD.MethodsA total of 66 IDD patients (IDD group) and 58 healthy volunteers (Control group) were recruited in this study. Quantitative real-time PCR (qRT-PCR) and western blot were used to investigate gene expression levels. Cell transfections were carried out to analyze gene interactions. The diagnostic value of lncRNA MAGI2-AS3 for IDD was assessed by ROC curve analysis.ResultsThe expression levels of plasma lncRNA MAGI2-AS3 were lower in IDD patients compared to that in the control group. Down-regulation of lncRNA MAGI2-AS3 effectively distinguished IDD patients from the control group. The expression levels of plasma lncRNA MAGI2-AS3 were significantly increased after the treatments. Over-expression of lncRNA MAGI2-AS3 inhibited the expression of FasL, while the silencing of lncRNA MAGI2-AS3 promoted the expression of FasL in nucleus pulposus (NP) cells.ConclusionsTherefore, lncRNA MAGI2-AS3 is down-regulated in IDD and participates in the regulation of FasL expression in nucleus pulposus (NP) cells.
Are there really any predictive factors for a successful weight loss after bariatric surgery?
Authors: Cadena-Obando Diego , Ramírez-Rentería Claudia , Ferreira-Hermosillo Aldo , Albarrán-Sanchez Alejandra , Sosa-Eroza Ernesto , Molina-Ayala Mario , Espinosa-Cárdenas Etual 
Published: March 2020

Abstract
Background
Currently, bariatric surgery is the most effective treatment for severe obesity and its metabolic complications; however, 15–35% of the patients that undergo bariatric surgery do not reach their goal for weight loss. The aim of this study was to determine the proportion of patients that didn’t reach the goal of an excess weight loss of 50% or more during the first 12 months and determine the factors associated to this failure.

Methods
We obtained the demographic, anthropometric and biochemical information from 130 patients with severe obesity who underwent bariatric surgery in our institution between 2012 and 2017. We used self-reports of physical activity, caloric intake and diet composition. An unsuccessful weight loss was considered when the patient lost < 50% or more of the excess weight 12 months after surgery. We compared the characteristics between the successful and unsuccessful groups in order to find the factors associated with success.

Results
We included 130 patients (mean age 48 ± 9 years, 81.5% were women). One year after surgery, 26 (20%) had loss < 50% EBW. Unsuccessful surgery was associated with an older age, previous history of hypertension, abdominal surgery or depression/anxiety, also the number of comorbidities and unemployment affected the results. These patients loss enough weight to improve some of their comorbidities, but they are more prone to regain weight 2 years after surgery.

Conclusions
A fifth of the patients undergoing bariatric surgery may not lose enough weight to be considered successful by current standards. Some patients may benefit from the surgery in the short term, but they are more likely to regain weight after 2 years. The factors influencing this result are still controversial but may be population-specific. Early detection of the patients that are more likely to fail is imperative to establish additional therapeutic strategies, without denying them the opportunity of surgery or waiting for weight re-gain to occur.
Evidence to support the early introduction of laparoscopic suturing skills into the surgical training curriculum
Authors: Tang Benjie , Zhang Lin , Alijani Afshin 
Published: March 2020

Abstract
Background
The objectives of this study were to investigate the relationship between the acquisition of laparoscopic suturing skills and other operative laparoscopic skills and to provide evidence to determine ideal time and duration to introduce laparoscopic suturing training.

Methods
The first part of the study explored the relationship between the acquisition of laparoscopic suturing skills and proficiency of other operative laparoscopic skills. The second part of the study consisted of an opinion survey from senior and junior trainees on aspects of training in laparoscopic suturing.

Results
One hundred twenty-eight surgical trainees participated in this study. The total scores of task performance of 57 senior surgical trainees in laparoscopic suturing skills consisting of needle manipulation and intracoporeal knot tying were improved significantly after the training course (46.9 ± 5.3 vs 29.5 ± 9.4, P < .001), the improvement rate was 59%. No statistically significant correlations were observed between intracorporeal laparoscopic suturing skills and proficiency in the basic laparoscopic manipulative skills assessed before (r = 0.193; P = 0.149) and after (r = 0.024; P = 0.857) the training course. 91% of senior trainees and 94% junior trainees expressed that intracorporeal suturing should be introduced at an early stage of the training curriculum.

Conclusions
There was no statistically significant correlation between the performance on basic operative laparoscopic skills (non-suturing skills) and laparoscopic suturing skills observed in this study. The acquisition of basic laparoscopic skills is not a prerequisite for training in intracorporeal suturing and it may be beneficial for the surgical trainees to learn this skill early in the surgical training curriculum. Surgical trainees want to learn and practice laparoscopic suturing earlier than later in their training.
Understanding how Eastern European migrants use and experience UK health services: a systematic scoping review
Authors: Phung Viet-Hai , Asghar Zahid , Matiti Milika , Siriwardena A. Niroshan 
Published: March 2020

Abstract
Background
The UK has experienced significant immigration from Eastern Europe following European Union (EU) expansion in 2004, which raises the importance of equity and equality for the recent immigrants. Previous research on ethnic health inequalities focused on established minority ethnic groups, whereas Eastern European migrants are a growing, but relatively under-researched group. We aimed to conduct a systematic scoping review of published literature on Eastern European migrants’ use and experiences of UK health services.

Methods
An initial search of nine databases produced 5997 relevant publications. Removing duplicates reduced the figure to 2198. Title and abstract screening left 73 publications. Full-text screening narrowed this down further to 10 articles, with three more from these publications to leave 13 included publications. We assessed publications for quality, extracted data and undertook a narrative synthesis.

Results
The included publications most commonly studied sexual health and family planning services. For Eastern European migrants in the UK, the most commonly cited barriers to accessing and using healthcare were limited understanding of how the system worked and language difficulties. It was also common for migrants to return to their home country to a healthcare system they were familiar with, free from language barriers. Familial and social networks were valuable for patients with a limited command of English in the absence of suitable and available interpreting and translating services.

Conclusions
To address limited understanding of the healthcare system and the English language, the NHS could produce information in all the Eastern European languages about how it operates. Adding nationality to the Electronic Patient Report Form (EPRF) may reveal the demand for interpretation and translation services. Eastern European migrants need to be encouraged to register with GPs to reduce A&E attendance for primary care conditions. Many of the issues raised will be relevant to other European countries since the long-term outcomes from Brexit are likely to influence the level of Eastern European and non-Eastern European migration across the continent, not just the UK.
The imperative of evidence-based health workforce planning and implementation: lessons from nurses and midwives unemployment crisis in Ghana
Authors: Asamani James Avoka , Amertil Ninon P. , Ismaila Hamza , Akugri Francis Abande , Nabyonga-Orem Juliet 
Published: March 2020

AbstractFollowing periods of health workforce crisis characterised by a severe shortage of nurses, midwives and doctors due to low production rates and excessive out-migration, the Government of Ghana through the Ministry of Health (MOH) responded by expanding training and allowing private sector involvement in the training of health workers especially nurses and midwives. This resulted in substantial increases in the production levels of nurses and midwives even above the projections of the MOH. In this paper, we discuss how a strategy that was seemingly well planned suffered a decade of uncorrected implementation lapses resulting in a lingering need-based shortage of nurses and midwives at service delivery points whilst thousands of trained nurses and midwives remained unemployed for up to 4 years and constantly protesting for jobs. In the short term, we argue that the Government of Ghana would need to increase investment to recruit trained and unemployed nurses and midwives whilst a comprehensive health labour market analysis is conducted to provide robust evidence towards the development of a long-term health workforce plan that would guide future production of nurses and midwives. The Government of Ghana may also explore the option of a managed migration programme to export nurses/midwives to countries that are already destinations to individual migration initiatives in a bid to mitigate the potential skill loss associated with long periods of unemployment after training, especially for those who trained from the private institutions.
Evaluating research investment and impact at a regional Australian Hospital and Health Service: a programme theory and conceptual framework
Authors: Edelman Alexandra , Brown Amy , Pain Tilley , Larkins Sarah , Harvey Gillian 
Published: March 2020

Abstract
Background
Health systems in Australia and worldwide are increasingly expected to conduct research and quality improvement activities in addition to delivering clinical care and training health professionals. This study aims to inform a research impact evaluation at a regional Australian Hospital and Health Service by developing a programme theory showing how research investment is expected to have impact.

Methods
This qualitative study, representing the first phase of a larger mixed methods research impact evaluation at the Townsville Hospital and Health Service (THHS), adopts a realist-informed design involving the development of a programme theory. Data were obtained between February and May 2019 from strategic documentation and interviews with six current and former health service executives and senior employees. Inductive themes were integrated into a conceptual framework to visually represent the programme theory.

Results
Research at THHS has developed organically as the service has matured into a regional tertiary referral service serving a diverse rural and remote population across northern Queensland. Throughout this journey, individual THHS leaders often adopted a research development mantle despite disincentives arising from a performance-driven reporting and activity-based funding service context. Impact expectations from research investment at THHS were identified in the categories of enhanced research activity and capacity among clinicians, and improved clinical practice, health workforce capability and stability, and patient and population health. Seven contextual factors were identified as potential enablers or obstacles to these impact expectations and ambitions.

Conclusions
By identifying both relevant impact types and key contextual factors, this study offers programme theory to inform a planned research impact evaluation at THHS. The conceptual framework may be useful in other regionally based health service settings. More broadly, there are opportunities for future research to test and refine hybrid versions of linear and realist research impact evaluation models that combine resource-intensive, theory-driven approaches with policy practicality.