bluuebunny/crossref_metadata_2025_split huggingface dataset:
Choosing an activity that suits: development and validation of a questionnaire on motivational competence in exercise and sport
Authors: Schorno Nina , Sudeck Gorden , Gut Vanessa , Conzelmann Achim , Schmid Julia 
Published: January 2021

AbstractThe current study presents the development and validation of a questionnaire on motivational competence in exercise and sport. Motivational competence characterises the self-determined ability to choose a suitable exercise and sport activity. Knowing one’s own preferences and what to expect in different activities helps people to make this choice, which, in turn, supports them in maintaining their physical activity (PA) on a long-term and regular basis. The developed items cover the following three components of motivational competence: 1) knowing one’s own preferences, 2) knowing what to expect in different exercise and sport activities, and 3) choosing and arranging an exercise and sport activity. Psychometric properties were checked using a sample withN = 667 adults (Mage = 42.49,SD = 14.71, 62% female). The final one-dimensional scale consists of four items. Construct validity showed positive relationships to intrinsic and identified motivation modes of self-concordance and conversely no relationship to introjected and low negative to extrinsic motivation. For criterion validity, the structural equation modeling demonstrated that motivational competence and PA-specific self-control are independently and positively associated with exercise and sport behaviour. Overall, the newly developed scale is a psychometrically sound and economical instrument to be used in exercise and sport promotion (e.g. counselling) and research.
Water-retaining properties of NCZ composite dust suppressant and its wetting ability to hydrophobic coal dust
Authors: Liu Jianguo , Wang Shu , Jin Longzhe , Wang Tianyang , Zhou Zihao , Xu Jingge 
Published: January 2021

AbstractCoal dust is a primary threat to underground coal miners. The most common approach to control coal dust is hydraulic methods, such as water spray and coal seam water injection. To improve the dust suppressant efficiency of hydraulic methods, a novel chemical composite dust suppressant, called NCZ, was prepared in this study using calcium chloride (CaCl2), magnesium chloride (MgCl2), and nonionic surfactants using a thermal synthesis method. The water-retaining properties of NCZ powder and its solutions were characterized using the water absorption rate (WAR) and evaporation rate (ER), respectively, and the wetting abilities of the NCZ solutions on coal dust were tested using the initial contact angle (ICA) and sink rate (SR). The results indicate that the NCZ solutions have anti-evaporation effects, and the ER of the solution with a 20.0 wt% NCZ is reduced by 11.7% compared with that of clean water. Furthermore, NCZ solutions have remarkable enhancement effects on the wettability of coal dust. The ICA and SR of clean water and the NCZ solution at 20.0 wt% are 141.9° and 0 mg/s, and 29.3° and 1.46 mg/s, respectively. Finally, quantitative relationships between the solution surface tension and the ICA and IR were established using the least squares method. This study provides a new product for dust suppression in underground mines, which is significant for the optimum applied concentration of dust suppressant in mining operations.
Magnetic Array Assisted Triboelectric Nanogenerator Sensor for Real-Time Gesture Interaction
Authors: Qin Ken , Chen Chen , Pu Xianjie , Tang Qian , He Wencong , Liu Yike , Zeng Qixuan , Liu Guanlin , Guo Hengyu , Hu Chenguo 
Published: January 2021

AbstractIn human-machine interaction, robotic hands are useful in many scenarios. To operate robotic hands via gestures instead of handles will greatly improve the convenience and intuition of human-machine interaction. Here, we present a magnetic array assisted sliding triboelectric sensor for achieving a real-time gesture interaction between a human hand and robotic hand. With a finger’s traction movement of flexion or extension, the sensor can induce positive/negative pulse signals. Through counting the pulses in unit time, the degree, speed, and direction of finger motion can be judged in real-time. The magnetic array plays an important role in generating the quantifiable pulses. The designed two parts of magnetic array can transform sliding motion into contact-separation and constrain the sliding pathway, respectively, thus improve the durability, low speed signal amplitude, and stability of the system. This direct quantization approach and optimization of wearable gesture sensor provide a new strategy for achieving a natural, intuitive, and real-time human-robotic interaction.
In vivo study of conductive 3D printed PCL/MWCNTs scaffolds with electrical stimulation for bone tissue engineering
Authors: e Silva Edney P. , Huang Boyang , Helaehil Júlia V. , Nalesso Paulo R. L. , Bagne Leonardo , de Oliveira Maraiara A. , Albiazetti Gabriela C. C. , Aldalbahi Ali , El-Newehy Mohamed , Santamaria-Jr Milton , Mendonça Fernanda A. S. , Bártolo Paulo , Caetano Guilherme F. 
Published: January 2021

AbstractCritical bone defects are considered one of the major clinical challenges in reconstructive bone surgery. The combination of 3D printed conductive scaffolds and exogenous electrical stimulation (ES) is a potential favorable approach for bone tissue repair. In this study, 3D conductive scaffolds made with biocompatible and biodegradable polycaprolactone (PCL) and multi-walled carbon nanotubes (MWCNTs) were produced using the extrusion-based additive manufacturing to treat large calvary bone defects in rats. Histology results show that the use of PCL/MWCNTs scaffolds and ES contributes to thicker and increased bone tissue formation within the bone defect. Angiogenesis and mineralization are also significantly promoted using high concentration of MWCNTs (3 wt%) and ES. Moreover, scaffolds favor the tartrate-resistant acid phosphatase (TRAP) positive cell formation, while the addition of MWCNTs seems to inhibit the osteoclastogenesis but present limited effects on the osteoclast functionalities (receptor activator of nuclear factor κβ ligand (RANKL) and osteoprotegerin (OPG) expressions). The use of ES promotes the osteoclastogenesis and RANKL expressions, showing a dominant effect in the bone remodeling process. These results indicate that the combination of 3D printed conductive PCL/MWCNTs scaffold and ES is a promising strategy to treat critical bone defects and provide a cue to establish an optimal protocol to use conductive scaffolds and ES for bone tissue engineering.
Risk factors for death in tuberculosis patients requiring ICU care
Authors: Wang Jun-Li , Yin Qi-Yun , Han Chao , Liu Feng-Lin , Wang Mao-Shui 
Published: January 2021

AbstractThe prognostic factor for in-hospital mortality in tuberculosis (TB) patients requiring intensive care unit (ICU) care remains unclear. Therefore, a retrospective study was conducted aiming to estimate the in-hospital mortality rate and the risk factors for mortality in a high-burden setting. All patients with culture-confirmed TB that were admitted to the ICU of the hospital between March 2012 and April 2019 were identified retrospectively. Data, such as demographic characteristics, comorbidities, laboratory measures and mortality, were obtained from medical records. The Cox proportional hazards regression model was used to identify prognostic factors that influence in-hospital mortality. A total of 82 ICU patients with confirmed TB were included in the analysis, and 22 deaths were observed during the hospital stay, 21 patients died in the ICU. In the multivariable model adjusted for sex and age, the levels of serum albumin and white blood cell (WBC) count were significantly associated with mortality in TB patients requiring ICU care (allP< 0.01), the hazard ratios were 0.8 (95% confidence interval (CI): 0.7–0.9) per 1 g/l and 1.1 (95% CI: 1.0–1.2) per 1 × 109/l, respectively. In conclusion, in-hospital mortality remains high in TB patients requiring ICU care. Low serum albumin level and high WBC count significantly impact the risk of mortality in these TB patients in China.
A discussion on implementing pooling detection tests of novel coronavirus (SARS-CoV-2) for a large population
Authors: Chow W. K. , Chow C. L. 
Published: January 2021

Abstract
A pooled sample analysis strategy for novel coronavirus (severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2)) is proposed for a large population in this paper. The population to be tested is divided into divisions based on earlier observed detection rate of SARS-CoV-2 first. Samples collected are then grouped in appropriate pooled size. The number of tests per person in that population is expressed as a function of two variables: the observed detection rate and the pooled size or number of samples grouped. The minimum number of tests per person can be further shown to be a function of only one of these two variables, because these two parameters are found to be related at this minimum. A management scheme on grouping the samples is proposed in order to reduce the number of tests, to save time, which is of utmost importance in fighting an epidemic. The proposed testing scheme will be useful for supporting the government in making decisions to handle regular routine detection tests for identifying asymptomatic patients and implementing health code system in large population of millions of citizens. Another important point is to use smaller number of test kits, allowing more resources to speed up the mass screening tests, particularly in places not so rich.
Cardiac output monitoring in paediatric cardiac surgery: a review
Authors: Woodman Hannah M. , Lee Corlyn , Ahmed Ayesha N. , Malik Bassit A. , Mellor Sophie , Brown Louise J. , Gentle Leanne , Harky Amer 
Published: January 2021

AbstractThe aim of this review is to present the current options for cardiac output (CO) monitoring in children undergoing cardiac surgery. Current technologies for monitoring identified were a range of invasive, minimally invasive, and non-invasive technologies. These include pulmonary artery catheter, transoesophageal echocardiography, pulse contour analysis, electrical cardiography, and thoracic bioreactance. A literature search was conducted using evidence databases which identified two current guidelines; the NHS Greater Glasgow and Clyde guideline and Royal College of Anaesthetics Guideline. These were appraised using the AGREE II tool and the evidence identified was used to create an overview summary of each technological option for CO monitoring. There is limited evidence regarding the accuracy of modalities available for CO monitoring in paediatric patients during cardiac surgery. Each technology has advantages and disadvantages; however, none could be championed as the most beneficial. Furthermore, a gold standard for CO monitoring has not yet been identified for paediatric populations, nor is it apparent whether one modality is preferable based on the available evidence. Additional evidence using a standardised method for comparing CO measurements should be conducted in order to determine the best option for CO monitoring in paediatrics. Furthermore, cost-effectiveness assessment of each modality should be conducted. Only then will it be possible for clear, evidence-based guidance to be written.
Tenth Circuit Upholds BC/BS's Anti-Assignment Provisions
Authors: M.K.  
Published: January 2021

In St. Francis Regional Medical Center v. Blue Cross & Blue Shield of Kansas (49 F.3d 1460 (1995)), the United States Court of Appeals for the Tenth Circuit upheld Blue Cross/Blue Shield of Kansas's anti-assignment requirement, on the grounds that the Employee Retirement Income Security Act (ERISA) preempted a hospital's claim against Blue Cross. The court also held that public policy supported anti-assignment requirements in health plans not covered under ERISA.When drafting ERISA, Congress did not explicitly address assignability of health care benefits. According to the court of appeals, congressional silence constituted an intent to allow the parties to negotiate freely the assignment of health care benefits. Examining non-ERISA health plans, the court adopted a balancing test to determine the validity of anti-assignment clauses; it found that anti-assignment requirements promote freedom of contract and may include medical costs.
Intellectual Property: Plants Patentable Under the Utility Patent Statute, PVA, and PVPA
Authors: Quick John 
Published: January 2021

In J.E.M. AG Supply, Inc. v. Pioneer Hi-Bred International, Inc., the U.S. Supreme Court held that utility patents may be issued for newly developed, sexually reproduced plants and plant seeds. Specifically, the Court denied the petitioner's contention that the exclusive means of protecting sexually reproduced plants and plant seeds are found in the Plant Patent Act of 1930 (PPA) and the Plant Variety Protection Act (PVPA). The Court instead affirmed the decisions of the District Courts and the Federal Circuit and held that 35 U.S.C. § 101 (§ 101 or the Utility Patent Act) also allows for the patenting of living organisms.The respondent, Pioneer Hi-Bred, a large seed producer, filed suit for patent infringement on the part of the petitioner, J.E.M. AG Supply, doing business as Farm Advantage, Inc., for reselling bags of respondent's patented hybrid seeds. Pioneer is a major producer and manufacturer of hybrid seeds.
Hospitals: N.Y. Appellate Court Denies Move to Privatize Public Hospital
Authors: Chatham Robert 
Published: January 2021

The Court of Appeals of New York held, in Council of the City of New York u. Giuliani, slip op. 02634, 1999 WL 179257 (N.Y. Mar. 30, 1999), that New York City may not privatize a public city hospital without state statutory authorization. The court found invalid a sublease of a municipal hospital operated by a public benefit corporation to a private, for-profit entity. The court reasoned that the controlling statute prescribed the operation of a municipal hospital as a government function that must be fulfilled by the public benefit corporation as long as it exists, and nothing short of legislative action could put an end to the corporation's existence.In 1969, the New York State legislature enacted the Health and Hospitals Corporation Act (HHCA), establishing the New York City Health and Hospitals Corporation (HHC) as an attempt to improve the New York City public health system. Thirty years later, on a renewed perception that the public health system was once again lacking, the city administration approved a sublease of Coney Island Hospital from HHC to PHS New York, Inc. (PHS), a private, for-profit entity.
Effect of fulvic acid on barnyardgrass (Echinochloa crus-galli) seedling growth under flooding conditions
Authors: Zhou Shangfeng , Tang Yi , Pan Lang , Wang Cong , Guo Yanan , Yang Haona , Li Zuren , Bai Lianyang , Wang Lifeng 
Published: January 2021

AbstractBarnyardgrass [Echinochloa crus-galli (L.) P. Beauv.] is a problematic weed in rice (Oryza sativa L.) fields. Overapplication of herbicides causes environmental pollution and the emergence of resistant weeds, and integrated weed management methods can reduce dependence on herbicides. The growth of E. crus-galli and rice seedlings was shown to be significantly inhibited by high concentrations of fulvic acid (FA, C14H12O8) under flooding conditions (HF, 0.80 g L−1) (P < 0.05). In contrast, seedling growth was promoted by the application of very low concentrations of FA (LF, 0.02 g L−1). The activities of glutathione S-transferase (GST) and antioxidant enzymes, including total superoxide dismutase (T-SOD), peroxidase (POD), and catalase (CAT), in E. crus-galli seedlings were enhanced by the LF treatment; while POD activity decreased and GST, T-SOD, and CAT activity was not significantly altered by the HF treatment. The metabolomic and transcriptomic analyses showed that FA regulated E. crus-galli seedling growth by affecting the synthesis of indole derivatives and flavonoid compounds. Compared with the blank control (CK, 0 g L−1), the levels of four indole derivatives were upregulated under the HF treatment, and the indole derivatives were slightly downregulated under the LF treatment. The flavonoids, including naringenin, naringenin chalcone, eriodictyol, kaempferol, and epigallocatechin, were downregulated under HF treatment, and the growth of E. crus-galli was reduced. In contrast, the metabolism and transcription of flavonoids were not significantly altered by the LF treatment. The addition of 0.80 g L−1 FA obviously inhibited the growth of newly sprouted E. crus-galli, whereas rice growth was significantly promoted 8 d after rice planting (P < 0.05). The application of FA, therefore, might be a potential integrated weed management method to control the damage caused by E. crus-galli in paddy fields.
Ejecta From the Orientale Basin at the Chang'E‐4 Landing Site
Authors: Xiao Zhiyong , Ding Chunyu , Xie Minggang , Cai Yuzhen , Cui Jun , Zhang Ke , Wang Juntao 
Published: January 2021

AbstractRadargrams obtained by the Yutu‐2 rover reveal that the post‐mare deposits at the Chang'E‐4 landing site are ∼45 m thick, consistent with estimations based on orbital observations. Besides obvious ejecta from Finsen, polarized interpretations exist on whether or not the Alder crater is another contributor to the post‐mare deposits, although predicted thicknesses of ejecta from all potential source craters are not adequately large compared to observations. We recognize that the rover has been exploring along a shared crater wall of two secondaries from Finsen. Mechanics of secondary impacts suggests that the discontinuous layers of coarse and fine materials observed in the radargram are older than Finsen. Cross‐cutting relationships and crater density comparisons show that Alder is older than the mare basalts, and the Orientale basin was the major source for the post‐mare materials. Lower‐crust materials excavated by Orientale constituted a substantial portion of the surface regolith detected by the rover.
The upper respiratory tract microbiome of indigenous Orang Asli in north-eastern Peninsular Malaysia
Authors: Cleary David W. , Morris Denise E. , Anderson Rebecca A. , Jones Jessica , Alattraqchi Ahmed Ghazi , A. Rahman Nor Iza , Ismail Salwani , Razali Mohd Sayuti , Mohd Amin Rahmah , Abd Aziz Aniza , Esa Nor Kamaruzaman , Amiruddin Salman , Chew Ching Hoong , Simin Hafis , Abdullah Ramle , Yeo Chew Chieng , Clarke Stuart C. 
Published: January 2021

AbstractMuch microbiome research has focused on populations that are predominantly of European descent, and from narrow demographics that do not capture the socio-economic and lifestyle differences which impact human health. Here we examined the airway microbiomes of the Orang Asli, the indigenous peoples of Malaysia. A total of 130 participants were recruited from two sites in the north-eastern state of Terengganu in Peninsular Malaysia. Using 16S rRNA sequencing, the nasal microbiome was significantly more diverse in those aged 5–17 years compared to 50+ years (p = 0.023) and clustered by age (PERMANOVA analysis of the Bray–Curtis distance, p = 0.001). Hierarchical clustering of Bray–Curtis dissimilarity scores revealed six microbiome clusters. The largest cluster (n = 28; 35.4%) had a marked abundance of Corynebacterium. In the oral microbiomes Streptococcus, Neisseria and Haemophilus were dominant. Using conventional microbiology, high levels of Staphylococcus aureus carriage were observed, particularly in the 18–65 age group (n = 17/36; 47.2% 95% CI: 30.9–63.5). The highest carriage of pneumococci was in the <5 and 5 to 17 year olds, with 57.1% (4/7) and 49.2% (30/61), respectively. Sixteen pneumococcal serotypes were identified, the most common being the nonvaccine-type 23A (14.6%) and the vaccine-type 6B (9.8%). The prevalence of pneumococcal serotypes covered by pneumococcal conjugate vaccines support introduction into a Malaysian national immunisation schedule. In addition, the dominance of Corynebacterium in the airway microbiomes is intriguing given their role as a potentially protective commensal with respect to acute infection and respiratory health.
Circulating tRNA-derived small RNAs (tsRNAs) signature for the diagnosis and prognosis of breast cancer
Authors: Wang Jingyi , Ma Ge , Ge Han , Han Xu , Mao Xinrui , Wang Xinyang , Veeramootoo Jordee Selvamanee , Xia Tiansong , Liu Xiaoan , Wang Shui 
Published: January 2021

AbstractLiquid biopsy is noninvasive and convenient to detect cancer-derived materials in blood or other body fluids. The aim of this study was to identify tRNA-derived small RNAs (tsRNAs) in plasma that could distinguish patients with breast cancer (BC) from healthy controls. Basing on high-throughput sequencing, 15 significantly upregulated tsRNAs were selected and assessed in cell supernatants and cell lines. 6 tsRNAs were identified and verified in a large cohort of 120 patients with BC and 112 healthy controls. tRF-Arg-CCT-017, tRF-Gly-CCC-001, and tiRNA-Phe-GAA-003 could serve as novel diagnostic biomarkers. Meanwhile, tRF-Arg-CCT-017 and tiRNA-Phe-GAA-003 could also act as prognostic biomarkers. Target genes of these tsRNAs were related to the development of cancers. These results suggested that specific tsRNAs in plasma might serve as diagnostic and prognostic biomarkers of BC.
Irritable bowel syndrome and Parkinson’s disease risk: register-based studies
Authors: Liu Bojing , Sjölander Arvid , Pedersen Nancy L. , Ludvigsson Jonas F. , Chen Honglei , Fang Fang , Wirdefeldt Karin 
Published: January 2021

AbstractTo examine whether irritable bowel syndrome (IBS) was related to the future risk of Parkinson’s disease (PD), we conducted a nested case-control study in the Swedish total population including 56,564 PD cases identified from the Swedish Patient Register and 30 controls per case individually matched by sex and year of birth. Odds ratios (ORs) with 95% confidence intervals (CIs) for having a prior diagnosis of IBS were estimated using conditional logistic regression. We furthermore conducted a cohort study using the Swedish Twin Registry following 3046 IBS patients identified by self-reported abdominal symptoms and 41,179 non-IBS individuals. Through Cox proportional hazard models, we estimated hazard ratios (HRs) and 95% CIs for PD risk. In the nested case-control study, 253 (0.4%) PD cases and 5204 (0.3%) controls had a previous IBS diagnosis. IBS diagnosis was associated with a 44% higher risk of PD (OR = 1.44, 95% CI 1.27–1.63). Temporal relationship analyses showed 53% and 38% increased risk of PD more than 5 and 10 years after IBS diagnosis, respectively. In the cohort analysis based on the Swedish Twin Registry, there was no statistically significantly increased risk of PD related to IBS (HR = 1.25, 95% CI = 0.87–1.81). Our results suggest a higher risk of PD diagnosis after IBS. These results provide additional evidence supporting the importance of the gut–brain axis in PD.