Miracle-dz/UniFAR-FTUs huggingface dataset:
Perceived Principal’s Authentic Leadership Impact on the Organizational Citizenship Behavior and Well-Being of Teachers

As teacher well-being is impacted by the leadership ability of school management, which helps establish trust and cooperation among the teaching faculty, it is an important subject of research. Therefore, this study aims to explore how the authentic leadership of school principals impacts (1) the teacher-school relationship (based on organizational trust, organizational identification, and organizational commitment), and (2) teachers’ organizational citizenship behavior. In addition, mediating effects of the teacher-school relationship and organizational citizenship are investigated. For data collection, senior high/vocational school teachers in central Taiwan were recruited to participate in a self-reported questionnaire survey. Specifically, 783 valid responses were retrieved. The empirical findings are as follows. First, the principals’ authentic leadership had a direct effect on teachers’ organizational trust, organizational identification, organizational commitment, and organizational citizenship behavior. Second, organizational identification and organizational commitment directly affected organizational citizenship behavior. Third, organizational trust, organizational commitment, and organizational citizenship behavior directly affected teachers’ well-being. Finally, organizational trust, organizational commitment, and organizational identification had a mediating effect on the relationship between authentic leadership, organizational citizenship behavior, and teacher well-being. The academic and practical implications, as well as contributions of the study, are discussed, and suggestions for future research and management are proposed.
Electronic Journal of Qualitative Theory of Differential Equations

We classify the global dynamics of a family of Kolmogorov systems depending on three parameters which has ecological meaning as it modelizes a predator–prey system. We obtain all their topologically distinct global phase portraits in the positive quadrant of the Poincaré disc, so we provide all the possible distinct dynamics of these systems.
Increase of CD3+CD7− T cells in bone marrow predicts invasion in patients with T-cell non-Hodgkin’s lymphoma

Background The T-cell non-Hodgkin’s lymphoma (T-NHL) patients with bone marrow (BM) invasion have a poor prognosis. Although BM biopsy is still a confirmed diagnosis method, the low sensitivity restricts its use to detect the minimal BM invasion. It is of great clinical significance to establish a rapid and highly sensitive method to evaluate BM invasion. Methods We conducted a retrospective study of 85 patients with new diagnosed T-NHL patients enrolled in our institute. The bone marrow mononuclear cells (BMMNCs) cells were isolated, stained with different combinations of antibody and subjected to flow cytometry analysis. Results We found that CD3+CD7− T cells increased significantly in the BM in T-NHL patients with BM invasion. The patients were divided into the low and high groups according to the cutoff value of 1.035% obtained by analyzing the receiver operating characteristic (ROC) curve of the percentage of CD3+CD7− T cells of nucleated cells at diagnosis. The ratio of invasion in high group was markedly higher than that in low group. Furthermore, CD3+CD7− T cells presented significantly higher level of programmed cell death-1 (PD-1), lymphocyte-activation-gene-3 (LAG3) and CD4/CD8 ratio. Conclusions Our study revealed the percentage of CD3+CD7− T cells of nucleated cells in BM was a potential diagnostic predictor of BM invasion with T-NHL.
Stalk cutting mechanism of no-tillage planter for wide/narrow row farming mode

A no-tillage planter of narrow row spacing was designed according to the agronomic requirements of wide/narrow row farming mode in the black soil region of Northeast China. Due to the narrow spacing of the seeder unit, a gear-tooth stalk cutting mechanism was designed in order to prevent residues from blocking the planter. The basic parameters, number and edge curve of the stalk cutting blade were designed and optimized. Three-factor and three-level combined orthogonal experiments were conducted using the factors of working speed (1.12 m/s, 1.57 m/s and 2.02 m/s), tillage depth (75 mm, 90 mm and 105 mm) and cutter spacing (15 mm, 30 mm and 45 mm), which significantly affected stalk cutting rate and soil disturbance rate. The optimal combination is the working speed of 1.62 m/s, tillage depth of 92 mm and cutter spacing of 35 mm. Under this condition, the stalk cutting rate is more than 90% and soil disturbance rate is 7.5%-12.0%. The performance of the new no-tillage planter was tested by using the above parameters. The results showed that the no-tillage planter of narrow row spacing came up to the relevant national standards in China. Keywords: conservation tillage, no-tillage planter, wide/narrow row farming, stalk cutting mechanism, soil disturbance rate, direct sowing, corn, Northeast China DOI: 10.3965/j.ijabe. 20171002.2247 Citation: Jia H L, Jiang X M, Yuan H F, Zhuang J, Zhao J L, Guo M Z. Stalk cutting mechanism of no-tillage planter for wide/narrow row farming mode. Int J Agric & Biol Eng, 2017; 10(2): 26–35.
Risk Factors and Predictive Models for Intravenous Immunoglobulin Resistance in Children with Recurrent Kawasaki Disease

Purpose To explore the risk factors and develop predictive models for intravenous immunoglobulin (IVIG) resistance in children with recurrent Kawasaki disease (KD). Patients and Methods Patients with recurrent KD were retrospectively reviewed. Clinical and laboratory data at recurrence were collected and compared between patients with and without IVIG resistance. The patients were randomly divided into training and validation cohorts for model development and validation. All variables were subjected to standard Lasso and its variant group Lasso analyses, respectively, to construct predictive models. Model performance was evaluated by receiver operating characteristics (ROC) curves, calibration curves, and Hosmer-Lemeshow tests. Results A total of 90 children with recurrent KD were included. A total of 16 cases were IVIG resistant. The patients with IVIG resistance had higher age and IVIG resistance probability at the first episode, increased CRP levels, neutrophil count, neutrophil percentage, direct bilirubin level, prothrombin time, and international normalized ratio, and decreased lymphocyte count, lymphocyte percentage, and serum sodium levels. Five variables including age and IVIG resistance at the first episode, lymphocytes count, serum sodium levels, and CRP levels were finally selected by standard Lasso (lLasso model) and four variables including age and IVIG resistance at the first episode, neutrophil percentage, and CRP levels were selected by group Lasso (gLasso). ROC curves suggested lLasso and gLasso models had similar excellent discrimination in both the training cohort (0.895 vs 0.906) and the validation cohort (0.855 vs 0.909). Hosmer-Lemeshow tests suggested the two models exerted a good calibration. Two nomograms were also constructed to facilitate the potential application of the two models. Conclusion Age and IVIG resistance at the first episode and some laboratory variables may be risk factors for IVIG resistance in recurrent KD. Two predictive models for IVIG resistance with excellent performance were established in recurrent KD. External validation should be performed before clinical use.
Dynamic Increase Factor for Investigation of Progressive Collapse Potential in Tall Tube-Type Buildings

AbstractIn recent decades, vulnerability of tall buildings to unforeseen loads induced by progressive collapse has drawn researchers’ attentions. There is a growing tendency among engineers to design tall buildings using complicated structural systems with adventurous load paths that are inconsistent with the existing guideline recommendations. Progressive collapse is a dynamic and nonlinear phenomenon. This paper describes a recommended methodology for calculating the dynamic increase factor (DIF) to consider the dynamic effects for nonlinear static analysis. Based on this method, the specific load factor corresponding to the progressive collapse potential of building structures is evaluated by a proposed collapse index. In the development of the methodology, selected tube-type structural systems such as framed tube, braced tube, diagrid, and hexagrid systems were investigated. This study was conducted to assess the collapse behavior of typical 48-story building models under sudden loss of corner load-be.
More insight into the concept of iron plaque formation and its characteristics in rice (Oryza sativa L.)

Trwały i bioakumulacyjny charakter toksycznych metali(oidów) (TM) jest głównym problemem związanym z ich obecnością w środowisku. Skażenie TM w glebie i osadach zwiększa potencjalne ryzyko utraty zdrowia człowieka, przez narażenie na skażenie łańcucha pokarmowego. Odkładanie płytki tlenku żelaza na korzeniach hydrofitowych (np. ryżu) jest wynikiem różnych czynników biotycznych i abiotycznych. Promieniowa utrata tlenu (ROL) odgrywa kluczową rolę w utlenianiu żelaza w ryzosferze, a następnie wytrącaniu nisko- lub wysoko krystalicznych i/lub amorficznych minerałów żelaza na powierzchni korzeni. Biorąc pod uwagę, że każdy gatunek rośliny ma unikalną zdolność tworzenia utlenionej ryzosfery w warunkach beztlenowych gleby, obecność żelaza w ryzosferze ma ogromne znaczenie. Grupy funkcyjne (-OH) i specyficzne powierzchnie reagujące w blaszkach żelaza mają wysokie powinowactwo do adsorpcji różnych metali śladowych (toksycznych/nietoksycznych), wpływając na ich wchłanianie i akumulację w roślinach. W akumulacji różnych pierwiastków ważną rolę odgrywają płytki żelaza (IP). Gatunki roślin o niskim IP na swoich korzeniach mogą lepiej akumulować metale ciężkie, niezależnie od tego, czy IP jest barierą, czy buforem. Rośliny jadalne o wysokim IP są lepszymi fito-remediatorami potencjalnie fitotoksycznych metali(oidów) i mogą być bezpieczniejsze do spożywania przez ludzi. Niniejszy przegląd podsumowuje obecną wiedze dotyczącą czynników związanych z tworzeniem i funkcjami płytki żelaza w zarządzaniu transportem metali w systemie korzeniowym.
Shrinkage and creep behavior of an alkali‐activated slag concrete

In this paper, experimental results about the shrinkage and creep behavior of an alkali‐activated slag concrete (AAS‐concrete) are presented. The autogenous shrinkage of AAS‐concrete is pronounced at a relatively high water to binder ratio of 0.41. The ultimate value of autogenous shrinkage is determined to be higher than that of high‐strength concrete (HSC). The observed self‐desiccation at a later concrete age can be one of the reasons for the autogenous shrinkage. In a drying environment of 65% relative humidity AAS‐concrete exhibits a significantly higher total shrinkage compared to normal‐strength concrete composed of Portland cement.
Poorly cytotoxic terminally differentiated CD56(neg)CD16(pos) Poorly cytotoxic terminally differentiated CD56(neg)CD16(pos) NK cells accumulate in Kenyan children with Burkitt lymphomas NK cells accumulate in Kenyan children with Burkitt lymphomas

CD16 pos NK cells accumulated in eBL children, particularly in those with high EBV loads (45.2%) compared with healthy children without (6.07%) or with (13.5%) malaria exposure ( P 5 .0007 and .002, respectively). This progressive shift in NK cell proportions was concomitant with fewer CD56 dim CD16 pos cells. Despite high MIP-1 b expression, CD56 neg CD16 pos NK cells had diminished cytotoxicity, with lower expression of activation markers NKp46, NKp30, and CD160 and the absence of TNF- a . Of note, the accumulation of poorly cytotoxic CD56 neg CD16 pos NK cells resolved in long-term eBL survivors. Our study demonstrates impaired NK cell – mediated immunosurveillance in eBL patients but with the potential to restore a protective NK cell repertoire after cancer treatment. Characterizing NK cell dysfunction during coinfections with malaria and EBV has important implications for designing immunotherapies to improve outcomes for children diagnosed with eBL.
Individual differences in navigating and experiencing presence in virtual environments

The effort of making Virtual Environments (VEs) more useful and satisfactory to use lie at the core of usability research. Because of their development and widespread accessibility, VEs are being used by an ever-increasing diversity of users, whose individual differences impact on both task performance and level of satisfaction. This aspect raises a major challenge in terms of designing adaptive VEs, suitable not for the average user but for each individual user. One way to address this challenge is through the study of individual differences and their implications, which should lead to new effective ways to accommodate them. Adaptivity reflects the system’s capability to automatically tailor itself to dynamically changing user behaviour. This capability is enabled by a user model, acquired on the basis of identifying the user’s patterns of behaviour. This thesis addresses the issue of studying and accommodating individual differences with the purpose of designing adaptive VEs. The individual differences chosen to be investigated are those that impact particularly on two fundamental aspects underlying each interaction with a VE, namely navigation and sense of presence. Both these aspects are related to the perceived usability of VEs. The impact that a set of factors like empathy, absorption, creative imagination and willingness to be transported within the virtual world has on presence has been investigated and described through a prediction equation. Based on these findings, a set of guidelines has been developed for designing VEs able to accommodate these individual differences in order to support users to experience a higher level of presence. The individual differences related to navigation within VE have been investigated in the light of discriminating between efficient versus inefficient search strategies. Building a user model of navigation affords not only a better understanding of user spatial behaviour, but also supports the development of an adaptive VE which could help low spatial users to improve their navigational skills by teaching them the efficient navigational rules and strategies.
Serum Calcium Levels and in-Hospital Infection Risk in Patients with Acute Ischemic Stroke

Purpose Stroke-associated infection (SAI) is one of the most common post-stroke complications, which may lead to a relatively poor prognosis. This study aims to explore the potential relationship between serum calcium levels and SAI. Patients and Methods This is a cross-sectional study involving 395 participants. SAI is a term that covers stroke-associated pneumonia (SAP), urinary tract infection (UTI), as well as other infections diagnosed during the first week after a stroke. Serum calcium levels were measured within 24 hrs of admission. To determine the association of serum calcium levels with the SAI, logistic regression models were calculated. An adjusted spline regression model was used to further confirm the relationship between the two. Results Among the total patients, SAI occurred in 107 (27.1%) patients. Serum calcium was associated with SAI and was independent of the SAI risk factors for age, admission NIHSS score, and intravascular therapy [adjusted OR 0.040 (95% CI = 0.005–0.291), p = 0.002]. Remarkably, this trend applies predominantly to serum calcium levels less than 2.25mmol/L (p= 0.005 for linearity). Conclusion Serum calcium levels are associated with the risk of SAI, when serum calcium is below normal (2.25mmol/L), the risk of SAI increases as serum calcium levels decrease.
Cost-Effectiveness and Budget Impact Analyses of Tisagenlecleucel in Pediatric and Young Adult Patients with Relapsed or Refractory B-Cell Acute Lymphoblastic Leukemia from the Singapore Healthcare System Perspective

Purpose Children and young adults with relapsed or refractory (r/r) acute lymphoblastic leukemia (ALL) have poor survival due to ineffective therapy options. The newly approved chimeric antigen receptor T-cell (CAR-T) therapy, tisagenlecleucel, has demonstrated improved survival but at a high up-front cost. The study aims to evaluate the cost-effectiveness and budget impact of tisagenlecleucel versus salvage chemotherapy regimen (SCR) or blinatumomab (BLN) for the treatment of pediatric and young adult patients with relapsed/refractory B-cell ALL from the Singapore healthcare system perspective. Patients and Methods A three-health state partitioned survival model was constructed to analyze the cost-effectiveness of tisagenlecleucel vs SCR/BLN with/without allogenic hematopoietic stem cell transplantation (allo-HSCT) over a lifetime period. Clinical efficacy for tisagenlecleucel, SCR and BLN were based on pooled data from ELIANA, ENSIGN and B2101J trials, the study by von Stackelberg et al 2011, and MT103-205 respectively. Medical costs from pre-treatment until terminal care, including treatment, side effects, follow-up, subsequent allo-HSCT and relapse, were considered. Incremental cost-effectiveness ratios (ICERs) were estimated as the incremental costs per quality-adjusted life-year (QALY) gain. Additionally, the financial impact of tisagenlecleucel introduction in Singapore was estimated, comparing the present treatment scenario (without tisagenlecleucel) with a future scenario (with tisagenlecleucel), over 5 years. Results In the base-case analysis, tisagenlecleucel treatment demonstrated cost-effectiveness with an ICER of S$45,840 (US$34,762) per QALY (vs SCR) and S$51,978 (US$39,315) per QALY (vs BLN). The estimated budget ranges from S$477,857 (US$361,438) to S$1.4 million (US$1.05 million) annually for the initial 5 years. Conclusion Tisagenlecleucel is likely to be a cost-effective treatment option with limited budget implications while treating r/r ALL patients who have failed at least 2 lines of prior therapies.
Does Compulsory Citizenship Behavior Necessarily Reduce Employee’s Work Well-Being? The Role of Relative Deprivation and Resource Compensation Based on Compulsory Citizenship Behavior

Purpose On the basis of previous research results, the opinion that compulsory citizenship behavior (CCB) leads to negative impacts over employees and organizations prevails. However, the latest researches negate the absence of rewards and favorable evaluation from organizational system for CCB. Instead, CCB is likely to be awarded by incentive allocation and recognitive affirmation. In the case of the resource compensation based on CCB, will the expected utility of CCB still show the consistence with the traditional CCB researches, imposing negative effects over employees and organizations? Methods This research explored the mechanism and boundary condition based on self-determination theory (SDT) and relative deprivation theory (RDT) to avert the negative effects of CCB, hoping to explain the above question. Time-lagged survey data from 227 employees tested the moderated mediation model, and the results verified the hypotheses. Results With resource compensation after the delivery of CCB, employees will not feel relative deprivation caused by reluctant false citizenship behaviors. In addition, relative deprivation expresses the gap between expectation and reality, low psychological discrepancy will not deeply undermine employees’ work well-being.
Green bio-oil extraction for oil crops

The move towards a green bio-oil extraction technique is highlighted in this paper. The commonly practised organic solvent oil extraction technique could be replaced with a modified microwave extraction. Jatropha seeds (Jatropha curcas) were used to extract bio-oil. Clean samples were heated in an oven at 110 ° C for 24 hours to remove moisture content and ground to obtain particle size smaller than 500μm. Extraction was carried out at different extraction times 15 min, 30 min, 45 min, 60 min and 120 min to determine oil yield. The biooil yield obtained from microwave assisted extraction system at 90 minutes was 36% while that from soxhlet extraction for 6 hours was 42%. Bio-oil extracted using the microwave assisted extraction (MAE) system could enhance yield of bio-oil compared to soxhlet extraction. The MAE extraction system is rapid using only water as solvent which is a nonhazardous, environment-friendly technique compared to soxhlet extraction (SE) method using hexane as solvent. Thus, this is a green technique of bio-oil extraction using only water as extractant. Bio-oil extraction from the pyrolysis of empty fruit bunch (EFB), a biomass waste from oil palm crop, was enhanced using a biocatalyst derived from seashell waste. Oil yield for non-catalytic extraction was 43.8% while addition of seashell based biocatalyst was 44.6%. Oil yield for non-catalytic extraction was 43.8% while with addition of seashell-based biocatalyst was 44.6%. The pH of bio-oil increased from 3.5 to 4.3. The viscosity of bio-oil obtained by catalytic means increased from 20.5 to 37.8 cP. A rapid and environment friendly extraction technique is preferable to enhance bio-oil yield. The microwave assisted approach is a green, rapid and environmental friendly extraction technique for the production of bio-oil bearing crops.
Nurses' substance use disorder in disciplinary procedures: A retrospective document analysis.

AIM AND OBJECTIVES To describe nurses with substance use disorder (SUD) in authority disciplinary actions. BACKGROUND Nurses with SUD risk patient safety. Research evidence on the identification of nurses' SUD and related management procedures is currently sparse. DESIGN Retrospective document analysis of decisions related to SUD in nurses' disciplinary actions. METHOD Decisions on nurses (N = 171) made by the Finnish National Supervisory Authority for Welfare and Health in Finland during 2007-2016 were used as data. An electronic extraction sheet was developed for data collection including variables (N = 34), of which 18 were analysed in this study with descriptive statistical methods and chi-squared statistics. The study reported in accordance with the STROBE checklist for cross-sectional studies. RESULTS The mean age of the nurses was 43 years (SD 8.7). The most mentioned reasons for notifications leading to disciplinary actions were substance abuse with working while intoxicated and drug theft. The most mentioned intoxicants used were medicines and alcohol. On average, the first disciplinary decision was given at 6.4 months (SD 3.9) and the final decision was given at 17.9 months (SD 13.1). The most common decision was restriction of the right to practice. CONCLUSION The results supported findings from previous decades and different continents, showing similar trends are prevalent globally and continue today. In future studies, countries' registers of nurses with SUD could be used to clarify the profile of nurses and develop appropriate procedures. Qualitative studies could be conducted to investigate to shed light on concealment of the phenomenon. RELEVANCE TO CLINICAL PRACTICE There is a need for early identification, intervention and referral to treatment as well as effective protocols for reducing nurses' risks of disciplinary actions related to SUD. It is important to be aware of the signs and symptoms of SUD and training for this is needed.