Miracle-dz/UniFAR-FTUs huggingface dataset:
FEATURES OF CAP ROCKS OF GAS POOLS AND CRITERIA OF IDENTIFICATION

Nature of cap rocks is a critical factor controlling the effective accumulation of natural gas. In order to evaluate the effectiveness of gas accumulation, criteria for recognizing cap rocks of medium- and high-efficiency gas reservoirs are established based on statistical analysis of the lithology, thickness and displacement pressure of cap rocks in over 40 gas pools in China. It is revealed that the cap rocks of gas pools in China are dominated by argillaceous rock, followed by evaporite, but the resource volumes sealed by the latter is relatively larger. To form a medium-efficiency gas pool, the thickness of cap rocks should be larger than 40 m and the displacement pressure should be larger than 15 MPa, while for a high-efficiency gas pool, the thickness and displacement pressure of direct cap rocks should be larger than 100 m and 20 MPa respectively. These criteria provide a basis for quantitative evaluation of the effectiveness of gas pooling.
USER-CENTERED APPROACH TO PRODUCT DESIGN FOR PEOPLE WITH VISUAL IMPAIRMENTS

The aim of this research was to investigate the application of the user-centred design process to the design and development of a product and it’s packaging suitable for people with visual impairments. The product and packaging had to be accessible to stakeholders on both sides not only to visually impaired end users but also to the workers with visual impairments in the production process. The accessibility features had to function in conjunction with other presentation and functional requirements of the product and packaging. In order to adapt the design for people with visual impairments, research of optimal design process was conducted using combination of contextual design with other user-centred methods. Rapid prototyping was used to create full-scale physical packaging models and product moulding tools for evaluation. Additional subjective evaluation using semantic differential was carried on users without visual impairments to establish the perception of pragmatic and hedonic quality of the packaging.
Study of GPS satellite clock's behaviors and prediction

By intensively analyzing recent years IGS SCE data,the author found that the precision of predicting GPS SCE is obviously dependent on the stability of the individual satellite clock.The most recent GPS satellites(BLOCK IIR and BLOCK IIR-M) are more stable than the former GPS satellites(BLOCK IIA). In this paper,the author easily predicted their next 6 hours SCE with LM and IGS ultra rapid products(URP). However,some of BLOCK IIA satellites clocks are instable.Therefore,the paper further analyzed their residuals and found that its residuals showed periodicity together with randomness.Then it suggested a new model for real-time SCE prediction.This model could predict not only the overall trend of SCE,but also the changing of periodic and random terms.Based on the new model and IGS URP,the SCE predicted precisions better than 0.5ns in real time.
Project-oriented problem-based learning (POPBL): an initiative to enrich soft skills among students at a public university

This paper discusses the implementation of Project -Oriented Problem -Based Learning (POPBL) at a technical-based university in the East Coast of Malaysia. The POPBL was employed to incorporate the theoretical knowledge and application of soft skills among students. This paper meant to report (i) challenges encountered by students in the process of POPBL’s implementation and (ii) students’ attitude in managing hindrances to complete the task. Observation was made during Soft Skills course offered to 3rd year undergrads. The groups encompass of various faculties were formed into small group of 6-7 members. Every 15 smalls groups were supervised by a lecturer. Along the 14-week course, students were required to do; (i) a survey and identify a problem based on designated theme, (ii) designed a project proposal complete with an action plan to solve the identified problem and, (iii) prepare a complete report furnished with related documents and images. Assessment on technical aspect was based on project proposal and final report, while Soft Skills applications were observing through work process i.e., work progress (Leadership Skills), task distribution and coordination (Team Working), flow of communications (Communication Skills) time management (Ethics and Moral Professional) and quality of solution (Critical Thinking and Problem Solving). The findings advocate that on the technical aspect, students were moderately able to prepare a project report but they need lots of assistance in preparing project proposal particularly in analyzing and identifying a problem. On Soft Skills application aspect, most students reported an adequate skills expansion particularly their team working and communication. The higher and low performers were captured via four progress meetings series conducted by the lecturers in charge. However, it was difficult to ascertain the level of performance for the average students due to disability of peer assessors to capture actual performance due to pity.
Riemannian Stochastic Recursive Gradient Algorithm

Stochastic variance reduction algorithms have recently become popular for minimizing the average of a large, but finite number of loss functions on a Riemannian manifold. The present paper proposes a Riemannian stochastic recursive gradient algorithm (R-SRG), which does not require the inverse of retraction between two distant iterates on the manifold. Convergence analyses of R-SRG are performed on both retractionconvex and non-convex functions under computationally efficient retraction and vector transport operations. The key challenge is analysis of the influence of vector transport along the retraction curve. Numerical evaluations reveal that R-SRG competes well with state-of-the-art Riemannian batch and stochastic gradient algorithms.
Deep Learning Architecture for Voltage Stability Evaluation in Smart Grid based on Variational Autoencoders

Deep learning, as one of the most popular rising technology, is being applied in power industry widely and gradually. This study explored a novel application of deep learning in voltage stability assessment based on variational autoencoder (VAE). VAE is a novel application of variational inference which have clear mathematical formula, it regularize latent variables in a expected stochastic distribution. VAE have distinctive ability to obtain near P-V curve by mere voltage data. An indicator based on VAE is proposed. For comparison and testing, multiple data-driven indicators based on sparse stacked autoencoder (SSAE) and adversarial autoencoder (AAE) are proposed. All of them extract important low-dimension expression of whole sampling data, showing the distinctive advantages of unsupervised learning [1]. A deep neural network based on proposed index is constructed to estimate voltage stability margin (VSM). Our methods are tested in IEEE-14, IEEE-57 and IEEE-118 bus standard system, and compared mutually. Other experimental cases show the effect of our approach in power grids state awareness, and the effects by limited field data. These testing case illustrate the accuracy and effectiveness of our approach.
Does the hα-index reinforce the Matthew effect in science? The introduction of agent-based simulations into scientometrics

Abstract Recently, Hirsch (2019a) proposed a new variant of the h-index called the hα-index. The hα-index was criticized by Leydesdorff, Bornmann, and Opthof (2019). One of their most important points is that the index reinforces the Matthew effect in science. The Matthew effect was defined by Merton (1968) as follows: “the Matthew effect consists in the accruing of greater increments of recognition for particular scientific contributions to scientists of considerable repute and the withholding of such recognition from scientists who have not yet made their mark” (p. 58). We follow up on the point about the Matthew effect in the current study by using a recently developed Stata command (h_index) and R package (hindex), which can be used to simulate h-index and hα-index applications in research evaluation. The user can investigate under which conditions hα reinforces the Matthew effect. The results of our study confirm what Leydesdorff et al. (2019) expected: The hα-index reinforces the Matthew effect. This effect can be intensified if strategic behavior of the publishing scientists and cumulative advantage effects are additionally considered in the simulation.
CELSR3 mRNA expression is increased in hepatocellular carcinoma and indicates poor prognosis

Objective Hepatocellular carcinoma (HCC) is a disease that is associated with high mortality; currently, there is no curative and reliable treatment. Cadherin EGF LAG seven-pass G-type receptor 3 (CELSR3) is the key signaling molecule in the wingless and INT-1/planar cell polarity (WNT/PCP) pathway. This study aimed to elucidate the prognostic significance of CELSR3 in HCC patients. Methods The Cancer Genome Atlas (TCGA) database, the Cancer Cell Line Encyclopedia (CCLE) database and the Gene Expression Omnibus (GEO) database were used to analyze the expression of CELSR3 mRNA in HCC samples and cells. The relationship between CELSR3 mRNA and clinical features was assessed by the chi-square test. the diagnostic and predictive value of CELSR3 mRNA expression were analyzed using the receiver operating characteristic (ROC) curve. Kaplan–Meier curve and Cox regression analyses were performed to assess the prognostic value of CELSR3 mRNA in HCC patients. Finally, all three cohorts database was used for gene set enrichment analysis(GSEA) and the identification of CELSR3-related signal transduction pathways. Results The expression of CELSR3 mRNA was upregulated in HCC, and its expression was correlated with age (P = 0.025), tumor status (P = 0.022), clinical stage (P = 0.003), T classification (P = 0.010), vital status (P = 0.001), and relapse (P = 0.005). The ROC curve assessment indicated that CELSR3 mRNA expression has high diagnostic value in HCC and in the subgroup analysis of stage. In addition, the Kaplan-Meier curve and Cox analyses suggested that patients with high CELSR3 mRNA expression have a poor prognosis, indicating that CELSR3 mRNA is an independent prognostic factor for the overall survival of HCC patients. GSEA showed that GO somatic diversification of immune receptors, GO endonuclease activity, GO DNA repair complex and GO somatic cell DNA recombination, were differentially enriched in the meta-GEO cohort, the HCC cell line cohort and the TCGA cohort of the high CELSR3 mRNA expression phenotype. Conclusion Our results indicate that CELSR3 mRNA is involved in the progression of cancer and can be used as a biomarker for the prognosis of HCC patients.
Co-Constructing Virtual Identities: Insights from Linguistic Analysis

This article critically examines the co-construction of personae for fictional characters in virtual environments. Expanding upon Gee’s (2003) tripartite notion of identity in virtual worlds, this paper focuses on how virtual identities are created, and who does the creating. Using sociolinguistic methodology, I show how alterations in behavior based on avatar characteristics (The Proteus Effect: Yee and Bailenson 20007) can be used as a window into the virtual identity creation process. Potential contributions to virtual identity from three sources are analyzed: the community, the creators of the virtual environment, and influences from the non-virtual world, concluding that community created knowledge seems to play the most significant role in virtual identity construction.
Plastome of mycoheterotrophic Burmannia itoana Mak. (Burmanniaceae) exhibits extensive degradation and distinct rearrangements

Plastomes of heterotrophs went through varying degrees of degradation along with the transition from autotrophic to heterotrophic lifestyle. Here, we identified the plastome of mycoheterotrophic species Burmannia itoana and compared it with those of its reported relatives including three autotrophs and one heterotroph (Thismia tentaculata) in Dioscoreales. B. itoana yields a rampantly degraded plastome reduced in size and gene numbers at the advanced stages of degradation. Its length is 44,463 bp with a quadripartite structure. B. itoana plastome contains 33 tentatively functional genes and six tentative pseudogenes, including several unusually retained genes. These unusual retention suggest that the inverted repeats (IRs) regions and possibility of being compensated may prolong retention of genes in plastome at the advanced stage of degradation. Otherwise, six rearrangements including four inversions (Inv1/Inv2/Inv3/Inv4) and two translocations (Trans1/Trans2) were detected in B. itoana plastome vs. its autotrophic relative B. disticha. We speculate that Inv1 may be mediated by recombination of distinct tRNA genes, while Inv2 is likely consequence of extreme gene losses due to the shift to heterotrophic lifestyle. The other four rearrangements involved in IRs and small single copy region may attribute to multiple waves of IRs and overlapping inversions. Our study fills the gap of knowledge about plastomes of heterotroph in Burmannia and provides a new evidence for the convergent degradation patterns of plastomes en route to heterotrophic lifestyle.
Stereotactic body radiation therapy for prostate cancer: systematic review and meta-analysis of prospective trials

Background: Despite the increasing worldwide utilization of stereotactic body radiation therapy (SBRT) for prostate cancer, there are no known summative data regarding its safety and efficacy. To address this knowledge gap, we conducted a PRISMA-guided systematic review and meta-analysis of prospective prostate SBRT trials. Results: Fourteen trials with a total of 2,038 patients were included. Median follow-up was 37 months (range 6-55 months). Most patients had cT1-T2a, Gleason ≤7 disease with median pre-treatment PSAs of 5–10; 1,042 (51%) were low-risk, 744 (37%) were intermediate-risk, 158 (8%) were high-risk, and the remainder were unreported. Doses ranged from 33.5–50.0 Gy, most typically in 5 fractions, with nearly all studies delivering nondaily fractionation with some type of daily image guidance. Outcomes were converted into counts at the end of one year. The pooled rate of FFBF was 98% [95% confidence interval, 97–98%]. The pooled rate of late grade ≥3 gastrointestinal and genitourinary toxicities were 1% [0–5%] and 2% [1–3%], respectively. Methods: PubMed and Google Scholar were queried for prospective studies evaluating survival and/or toxicity outcomes in SBRT (≤5 fractions) for localized prostate cancer. Pooled rates of freedom from biochemical failure (FFBF) and late grades ≥3 gastrointestinal (GI) and genitourinary (GU) toxicities were assessed. Meta-analysis of proportions was logit transformed and pooled using generalized linear mixed models (both fixed and random effects) and subsequently back transformed to standard proportions. Conclusions: Despite the lack of long-term follow-up and heterogeneity of the available evidence, prostate SBRT affords appropriate biochemical control with few high-grade toxicities. These data have implications for ongoing worldwide utilization of prostate SBRT as well as ongoing prospective investigations.
Periods of volcanic activity and magma evolution of Holocene in North Hainan Island

Volcanic activity of North Hainan Island started in Eocene. Eogene volcanic rocks hidden in different sedimentary strata in type of intermediate layer. Here we present six K-Ar ages of basalt and two Th ages of sandstone xenolith in the basalt. The new age data provide the evidence of Holocene volcanic activity in North Hainan Island. Volcanic rocks exposed on the earth's surface in North Hainan Island can be divided into six periods according to times, namely Penglai Period (Miocene), Jinniuling Period (Pliocene), Duowenling Period (Early Pleistocene), Dongying Period (Middle Pleistocene), Daotang Period (Late Pleistocene) and Leihuling Period (Holocene). Leihuling Period can be divided into two sub-periods: Leihuling Sub-period and Ma' anling Sub-period, respectively. Volcanic rocks of Leihuling Sub-period belong to olivine tholeiite, whereas, volcanic rocks of Ma' anling Sub-period are quartz tholeiite. The REE, trace elements and Sr, Nd, Pb isotopes characteristics reveal that the magma comes from a mixing source of DMM and enriched lithosphere or DMM and ocean crust subduction. Olivine tholeiite magma is relatively primitive magma in the mantle. Quartz tholeiite could have been formed by about 10% olivine crystal fractionation of olivine tholeiite magma. No evidence shows the crust contamination during the uplift of magma.
Protection and Utilization of China's World Heritages

To keep the authenticity and integrality of the world heritage is the responsibility of each member who belongs to the Protection of the World Cultura l and Natural Heritage Convention. The world heritages in China are being destro yed duo to economic benefit pursuit and incomplete administration systems. The c ommercialization, the urbanization and the artificiality of China’s world herit age has destroyed the ecological environment, the historical style and features. To preserve the civilization of human beings and be responsible to the history, people should know the nature of heritage, arrange the heritage property proper ly, optimize the regional industrial structure and establish special agencies. R elative laws should also be established and administration systems should be imp roved. Only the above methods be adopted can the contradiction between protectio n and utilization be solved and the world heritage be utilized sustainably.
GEOLOGICAL NATURE OF ROCK AND ITS DEDUCTION FOR ROCK MECHANICS

After brief introduction of geological processes responsible for rock global circulation,the topic of geological nature of rock is put forward and discussed with emphasizing the intrinsic properties of rock substance,structure and occurrence state,as well as its close relationship with geological evolution.The difference between rock and other artificial material lies in the geological nature of rock formed in the geological evolution.Based on the recognition of rock nature,the origin of physical inherent properties is discussed including heterogeneity and discontinuity,and their relations with geological nature are also discussed.Brief discussion on constitutive property in rock mechanics is made.The paper attempts to establish a knowledge path from geology to rock mechanics for further collaboration.
Research on Groundwater Regulation and Recoveryin North China Plain after the Implementation of South-to-North Water Transfer

It is highly serious for the shortage of water resources in North China Plain,and groundwater utilization is up to 69%of the total water supply.Consequently,groundwater table has being gradually descending due to continuous groundwater overexploitation,and many environmental-geological problems have occurred,such as land subsidence,seawater intrusion etc. With the implementation of South-to-North Water Transfer(middle route),research on groundwater regulation in North China Plain has been under heated discussion.Considering present conditions and environmental problems of groundwater in North China Plain,we have proposed a series of rules for groundwater regulation,such as giving priority to reducing groundwater development in seriously overexploited areas and deep aquifers,and sketching out the exploitation amount of groundwater after the implementation of South-to-North Water Transfer is completed based on groundwater recoverable resources.Recovery effect of groundwater regulation has been predicted by applying groundwater numerical model in North China Plain.It can be concluded that ten years after groundwater regulation is brought into effect,the groundwater table of depression cone in shallow aquifer would recover to various degrees in major controlling areas. For example,the groundwater table in depression cone in Shijiazhuang recovers by 2.1m/a. Meanwhile,depression cone area in deep aquifer would also shrink;for instance,the groundwater table in depression cone in Dezhou recovers by 0.8~1.5m/a.The storage rate in unconfined aquifer is 17.79×108m3/a and would recover effectively,but the confined aquifer would recover more slowly.Therefore,South-to-North Water Transfer(middle route)does great help in groundwater recovery in North China Plain.We should take good advantage of abundant water resources available from external regions and give full play to the project.Meanwhile,rules for groundwater regulation should be made to restrict the expansion and deepening of existing depression cone effectively.South-to-North Water Transfer(middle route)Project will relieve groundwater shortage problem as well as conserve and protect groundwater in North China Plain.Furthermore,it plays an important role in the gradual abatement of ecological environment deterioration and sustainable use of groundwater.Though the South-to-North Water Transfer(middle route)can relieve the contradiction between water supply and demand,it can not eradicate water shortage problem,and groundwater will still be the main source of industrial,agricultural and domestic water consumption.
Moderating Role of Self-Esteem Between Perceived Organizational Support and Subjective Well-Being in Chinese Nurses: A Cross-Sectional Study

Purpose Nurses are undertaking tremendous physical and psychological pressure, which may reduce their subjective well-being (SWB). This study is aimed to identify the relationship among perceived organizational support (POS), self-esteem, and SWB, and to further explore whether self-esteem could be a moderator in the association between POS and SWB in Chinese nurses. Materials and Methods This study was conducted in Liaoning Province in China, in 2018. 606 valid questionnaires were collected. Demographic factors, job conditions, the Index of Well-Being, Survey of Perceived Organizational Support (SPOS), and Rosenberg’s Self Esteem Scale (RSES) were included in each questionnaire. The association among POS, self-esteem, and POS × self-esteem interaction with SWB were examined by hierarchical multiple regression analysis. The interaction was visualized by using simple slope analysis. Results Average score of SWB in Chinese nurses was 8.27 ± 2.64. Being married was positively related to SWB, while having longer work time per week, having night shift and dissatisfied with nurse-patient relationship were correlated with lower SWB. POS and self-esteem were important factors for SWB. Self-esteem could moderate the relationship between POS and SWB. When self-esteem was higher, POS had a greater effect on SWB. Conclusion Subjective well-being of nurses in the study was at a low level. Self-esteem could moderate the association between POS and SWB. More interventions related to POS and self-esteem will be helpful to improve SWB among nurses.