bluuebunny/crossref_metadata_2025_split huggingface dataset:
Quality Service Analysis at Pusat Pelayanan Pendidikan Terpadu (P3T) Universitas Malahayati Using Fuzzy and Service Quality Method
Authors: Wardana M W , Sidiq A , Wibowo H , Pangestu Y 
Published: April 2020

Abstract
Each institution must try to provide the best service for costumers, but the level of customer satisfaction with a service is different. Every customer always expects to get the optimal service they want. This study aims to determine the level of service quality (Servqual) in the Quality Analysis of Pusat Pelayanan Pendidikan Terpadu (P3T) with Fuzzy Methods and Quality Services at Universitas Malahayati based on five dimensions of Tangible, Reliability, Responsiveness, Assurance and Empathy. This research was conducted by distributing questionnaires to P3T service users and then testing the validity and reliability. The method used is the fuzzy method followed by the calculation of the gap. Respondents in this study were 100 mixed students of various study programs at Universitas Malahayati with an error rate of 10%. The results of the calculation showed that the service performance provided by P3T was almost all the attributes whose performance must be improved. By improving the attributes that have high inequality values, it is expected to improve the quality of the P3T service so that it can increase the trust of service providers to customers.
The Effectiveness of Corncob Activated Carbon in Reducing Chromium (Cr), Cadmium (Cd), Copper (Cu), and Zinc (Zn) Levels in Electroplating Wastewater
Authors: Ergantara R.I , Panisean N. , Dewi S. N , Sidiq I 
Published: April 2020

Abstract
The heavy metal from industrial electroplating wastewater can directly affect the environment even at very low concentration. The application of agricultural waste as low-cost adsorbents of removing heavy metal has been developed. This study aimed to determine the effectiveness of corncob activated carbon in reducing levels of Cu, Zn, Cr, and Cd in electroplating wastewater. The adsorbent from corncob dried in the sun, carbonized for 24 hours until carbon was formed. Then it was activated by HCl 9% for 24 hours, dried, crushed, and sieved with 80 mesh size sifter. The variation of the discharge are 15ml/min, 20 ml/min, and 25ml/min, the sample was taken at 0, 5, 10, 15, and 20 minutes. The results show that the highest reduction of Cr, Cd, Cu, and Zn occurred at 15 ml/minute discharge in the 5th minute with the total removal efficiency of Cr, Cd, Cu, and Zn were 25.75%, 43.42%, 50.39%, and 53.97%. Furthermore, it indicates that corncob activated carbon was found to be most effective in reducing of Zinc (Zn).
Influence of Temperature on The Yield and Characteristic of Bio Oil from Pyrolysis of Pine Sap
Authors: Baskoro Wim Widyo , Arifin Muhammad Zainal , Anis Samsudin 
Published: April 2020

Abstract
The purpose of this work is to investigate the influence of temperature on the yield and characteristic of bio oil produced from pyrolysis of pine sap. The batch pyrolysis processes were conducted in an electric furnace at various temperature ranging from 350°C to 450°C. In each experiment, about 1 kg sample was pyrolyzed to obtain bio oil under inert environment by flowing nitrogen gas at 0.4 lpm. The produced bio oils were then characterized to obtain their physical and chemical properties. The result exhibited that the bio oil yield increased as the pyrolysis temperature increases. The highest yield of bio oil of 23.03 wt.% was achieved at 450°C. At this condition, the bio oil had specific gravity of 0.998, degree of acidity (pH) of 3.83, heating value of 5673.05 cal/g, and viscosity of 1.97 mm2/s. The bio oil composed of hydrocarbon component with carbon chain of C10–C21. It was found that more than 70 wt.% bio oil occupied by hydrocarbon fuel of >C14 that could be categorized as biodiesel fuel. In the meantime, bio oil produced at 350°C composed of hydrocarbon with carbon chain of C10 only that could be utilized as gasoline fuel.
Estimating Rotational FRFs of a Complex Structure Using FE Model Updating, Mode Expansion and FRF Synthesis Method
Authors: Iskandar Mirza Wii Wan , Rani Mn Abdul , Yunus Ma , Febrina Rina , Sani Msm 
Published: April 2020

Abstract
Estimating rotational frequency response functions (FRFs) from experimental data is very challenging, and the estimation often leads to poor FRFs due to the presence of spurious resonance peaks. In practice, special equipment is essentially required in the measurement process, unless the rotational FRFs are synthesised using measured modal data. This paper presents an alternative approach for estimating the rotational FRFs of a geometrically complex structure by using finite element modal updating, mode expansion and the FRF synthesis method. The applicability and accuracy of the proposed approach are demonstrated on a car front-end module A simplified finite element (SFE) model of the test structure is introduced and the SFE model is then updated based on the measured modal model obtained from experimental modal analysis. The mode shapes of the updated SFE model are expanded to the test model to obtain the entire translational and rotational modal vector. The rotational FRFs of the expended experimental model is derived via the FRF synthesis method. The derived translational FRF is compared with the measured counterparts for validation purposes. It was found that the derived translational and measured FRF are in a perfect match, and the derived rotational FRF has successfully estimated all the resonance peaks within the frequency of interest. The findings from this work may be useful in improving the accuracy of the experimental rotational FRFs, which are crucial for particular structural dynamics analysis.
Surface passivation of AZOY/n-Si interface of heterojunction solar cells with NH4F solution treatment
Authors: Wang Na-Fu , Tsai Yu-Zen , Cheng Yu-Song 
Published: April 2020

Abstract
This study reports the fabrication of n-type aluminum- and yttrium-codoped zinc oxide (AZOY) on n-Si (AZOY/n-Si) heterojunction solar cells (HJSCs) by using RF magnetron sputtering at various working pressure. AZOY thin films deposited on glass and n-Si substrates at various working pressure were evaluated for optoelectrical properties and performance. At a working pressure of 3 mTorr, the AZOY films showed the lowest resistivity of 8.11 × 10–3 Ωcm and visible transmittance (400–800 nm) of 84.64%, and AZOY/n-Si HJSCs achieved a high conversion efficiency of 11.83% (Voc: 498 mV, Jsc: 35.89 mAcm−2, and FF: 0.662). Repeating the optimal working pressure, the n-Si substrate was immersed in ammonium fluoride (NH4F) solution to improve the AZOY/n-Si interface state. The fluorine atom had the strongest electron negativity for effective passivation of the silicon dangling bond, and the device’s performance was able to further increase conversion efficiency to 12.64% (Voc: 523mV, Jsc: 36.79 mAcm−2, and FF: 0.657). Moreover, NH4F solution treatment of the silicon surface can increase the thinness of the SiOx layer from 1.27 to 0.79 nm and reduce the interface state density from 8.59 × 1011 to 1.13 × 1011 cm2.
Ferromagnetism in undoped ZnO grown by pulsed laser deposition
Authors: Azeem Waqar , Luo Cai-Qin , Xu Chi , Zhou Shengqiang , Wagner A , Butterling M , Younas Muhammad , Ling Francis Chi-Chung 
Published: April 2020

Abstract
Undoped ZnO films grown on sapphire by pulsed laser deposition are magnetic at room temperature. A comprehensive study involving x-ray diffraction, positron annihilation spectroscopy, and superconducting quantum Interference device-vibrating sample magnetometer is performed to study the origin of the observed magnetization. Correlations between the saturation magnetization, VZn−2VO concentration and surface to volume ratio of the grain found experimentally show that the magnetization is associated with the vacancy cluster and probably VZn−2VO residing on the grain surface.
Synthesis of Pb(Zr0.35−xMnxTi0.65)O3, x = 0.00, 0.02, 0.06, 0.10 ceramics and their structural, dielectric characteristics
Authors: Tiwari Balgovind , Babu T , Choudhary R N P 
Published: April 2020

Abstract
The samples of stoichiometry Pb(Zr0.35−x
Mn
x
Ti0.65)O3, x = 0.00, 0.02, 0.06, 0.10 (PZMT) were synthesized by solid state reaction route. For the first time, 35/65 lead zirconate titanate ceramics were modified by manganese (Mn) by replacing zirconium. X-ray diffraction (XRD) study has confirmed the formation of tetragonal phase in samples and no structural change has been observed due to Mn doping. Results of scanning electron microscopy (SEM) showed polycrystalline nature through shape, size and grain distribution in microstructures of all samples. At room temperature, the samples have shown identical nature in variation of dielectric constant (ϵ

r
) and tangent loss (tanδ) with frequency. At 50 kHz frequency, the value of maximum dielectric constant (ϵ
max) has been changed from 5440 to 12 562 due to Mn. With increase in doping amount of Mn, the values of Curie temperature (T

c
) have been decreased from 435 to 373 °C.

Tan
δ

of samples is decreased with increase in the dopant concentration. The diffusivity of PZT has increased with 2% of Mn doping. But further increase in the Mn concentration has decreased the diffusiveness of the samples.
Endoscopic Ultrasound-Guided Fine Needle Aspiration Cytologic Evaluation of Intraductal Papillary Mucinous Neoplasm and Mucinous Cystic Neoplasms of Pancreas
Authors: Gilani Syed M , Adeniran Adebowale J , Cai Guoping 
Published: April 2020

Abstract

Objectives
To evaluate the role of endoscopic ultrasound-guided fine needle aspiration cytology in identifying mucinous cystic lesions (MCLs) in histologically proven cases of intraductal papillary mucinous neoplasm (IPMN) or mucinous cystic neoplasm (MCN) and risk of malignancy associated with each cytologic category based on the Papanicolaou Society of Cytopathology (PSC) guidelines.

Methods
All resected cases with histologic diagnosis of IPMN or MCN at our institution from January 1, 2004, to August 31, 2019, with associated cytology were included. Available cytology slides of nondiagnostic (ND), negative/benign (BN), and atypical cytology (AC) cases were reviewed and reclassified based on the PSC guidelines.

Results
A total of 120 cases were identified, including 57 IPMNs with low-grade or moderate dysplasia (LGD/MD) and high-grade dysplasia (HGD), 34 MCNs with LGD/MD or HGD, and 29 IPMNs with invasive malignancy. After cytology slide review and reclassification, we observed that ND and BN cases were paucicellular and lacked ancillary testing (carcinoembryonic antigen levels or KRAS mutation analysis). The risk-of-malignancy rates were 33% for ND, 11% for BN, 28.5% for AC, 17% for MCL, and 100% for suspicious/positive cytologic diagnosis.

Conclusions
A multidisciplinary approach including combined use of cytology and ancillary testing is helpful in establishing a diagnosis of MCL and identifying associated malignancy.
Few Losses to Follow-up in a Sub-Saharan African Cancer Cohort via Active Mobile Health Follow-up
Authors: Foerster Milena , Anele Angelica , Adisa Charles , Galukande Moses , Parham Groesbeck , Zietsman Annelle , Oyamienlen Christopher Sule , Iwuoha Kingsley Chukwunyere , Ezeigbo Esther , Bakengesa Evelyn , Kaggwa Agnes , Naamala Allen , Nteziryayo Anne , Nakazibwe Teopista , Pinder Leeya F , Walubita Emily , Pontac Johanna , Anderson Benjamin O , McKenzie Fiona , Schüz Joachim , dos Santos Silva Isabel , McCormack Valerie 
Published: April 2020

Abstract
Accurate survival estimates are needed for guiding cancer control efforts in sub-Saharan Africa, but previous studies have been hampered by unknown biases due to excessive loss to follow-up (LTFU). In the African Breast Cancer—Disparities in Outcomes Study, a prospective breast cancer cohort study, we implemented active mobile health follow-up, telephoning each woman or her next-of-kin (NOK) trimonthly on her mobile phone to update information on her vital status. Dates of every contact with women/NOK were analyzed from diagnosis in 2014–2017 to the earliest of September 1, 2018, death, or 3 years postdiagnosis. The cumulative incidence of being LTFU was calculated considering deaths as competing events. In all, 1,490 women were followed for a median of 24.2 (interquartile range (IQR), 14.2–34.5) months, corresponding to 8,529 successful contacts (77% of total contacts) with the women/NOK. Median time between successful contacts was 3.0 (IQR, 3.0–3.7) months. In all, 71 women (5.3%) were LTFU at 3 years: 0.8% in Nigeria, 2.2% in Namibia, and 5.6% in Uganda. Because of temporary discontinuity of active follow-up, 20.3% of women were LTFU after 2 years in Zambia. The median time to study notification of a death was 9.1 (IQR, 3.9–14.0) weeks. Although the present study was not a randomized controlled trial, in this cancer cohort with active mobile health follow-up, LTFU was much lower than in previous studies and enabled estimation of up-to-date and reliable cancer survival.
Life-Course Individual and Neighborhood Socioeconomic Status and Risk of Dementia in the Atherosclerosis Risk in Communities Neurocognitive Study
Authors: George Kristen M , Lutsey Pamela L , Kucharska-Newton Anna , Palta Priya , Heiss Gerardo , Osypuk Theresa , Folsom Aaron R 
Published: April 2020

Abstract
We examined associations of individual- and neighborhood-level life-course (LC) socioeconomic status (SES) with incident dementia in the Atherosclerosis Risk in Communities cohort. Individual- and neighborhood-level SES were assessed at 3 life epochs (childhood, young adulthood, midlife) via questionnaire (2001–2002) and summarized into LC-SES scores. Dementia was ascertained through 2013 using cognitive exams, telephone interviews, and hospital and death certificate codes. Cox regression was used to estimate hazard ratios of dementia by LC-SES scores in race-specific models. The analyses included data from 12,599 participants (25% Black) in the United States, with a mean age of 54 years and median follow-up of 24 years. Each standard-deviation greater individual LC-SES score was associated with a 14% (hazard ratio (HR) = 0.86, 95% confidence interval (CI): 0.81, 0.92) lower risk of dementia in White and 21% (HR = 0.79, 95% CI: 0.71, 0.87) lower risk in Black participants. Education was removed from the individual LC-SES score and adjusted for separately to assess economic factors of LC-SES. A standard-deviation greater individual LC-SES score, without education, was associated with a 10% (HR = 0.90, 95% CI: 0.84, 0.97) lower dementia risk in White and 15% (HR = 0.85, 95% CI: 0.76, 0.96) lower risk in Black participants. Neighborhood LC-SES was not associated with dementia. We found that individual LC-SES is a risk factor for dementia, whereas neighborhood LC-SES was not associated.
A unified approach to the calculation of information operators in semiparametric models
Authors: Mao Lu 
Published: April 2020

SummaryThe infinite-dimensional information operator for the nuisance parameter plays a key role in semiparametric inference, as it is closely related to the regular estimability of the target parameter. Calculation of information operators has traditionally proceeded in a case-by-case manner and has often entailed lengthy derivations with complicated arguments. We develop a unified framework for this task by exploiting commonality in the form of semiparametric likelihoods. The general formula developed allows one to derive information operators with simple calculus and, if necessary at all, a minimal amount of probabilistic evaluation. This streamlined approach shows its simplicity and versatility in application to a number of existing models as well as a new model of practical interest.
The apparently milder course of multiple sclerosis: changes in the diagnostic criteria, therapy and natural history
Authors: Sorensen Per Soelberg , Sellebjerg Finn , Hartung Hans-Peter , Montalban Xavier , Comi Giancarlo , Tintoré Mar 
Published: April 2020

Abstract
In the past decade, changes have occurred in the spectrum of multiple sclerosis courses. The natural history of multiple sclerosis appears milder from the first sign of demyelinating disease to the progressive course, probably as a result of an interplay between several factors including changes in the diagnostic criteria, changes in the epidemiology of multiple sclerosis, impact of early and appropriate disease-modifying treatment and improvement of the general state of health in the population. It has been suggested to regard incidental findings of demyelinating lesions in MRI in individuals without any history of clinical symptoms consistent with neurological dysfunction, so-called radiological isolated syndrome, as the initial course of multiple sclerosis. New diagnostic criteria have enabled the multiple sclerosis diagnosis in many patients at the first clinical demyelinating event, clinically isolated syndrome. The remaining patients with clinically isolated syndrome have a more benign prognosis, and for relapsing-remitting multiple sclerosis, the prognosis has become more favourable. Reduced disease activity in patients with relapsing-remitting multiple sclerosis can partly be ascribed to more efficacious new disease-modifying therapies but decrease in disease activity has also be seen in placebo-treated patients in clinical trials. This may be explained by several factors: change in the diagnostic criteria, more explicit inclusion criteria, exclusion of high-risk patients e.g. patients with co-morbidities, and more rigorous definitions of relapses and disease worsening. However, these factors also make the disease course in patients treated with disease-modifying therapies seem more favourable. In addition, change in the therapeutic target to stable disease (no evidence of disease activity = no relapses, no disease worsening and no MRI activity) could by itself change the course in relapsing-remitting multiple sclerosis. The effectiveness of disease-modifying drugs has reduced the transition from relapsing-remitting to secondary progressive multiple sclerosis. The concept of progressive multiple sclerosis has also evolved from two very distinct categories (primary progressive and secondary progressive multiple sclerosis) to a unified category of progressive multiple sclerosis, which can then be split into the categories of active or inactive. Also, an increasing tendency to treat progressive multiple sclerosis with disease-modifying therapies may have contributed to change the course in progressive multiple sclerosis. In conclusion, during the past decade the entire course of multiple sclerosis from the first sign of a demyelinating disorder through the progressive course appears to be milder due to a complex interplay of several factors.
Thoracoscopic surgery for recurrent tracheoesophageal fistula after esophageal atresia repair
Authors: Hua Kaiyun , Yang Shen , Zhang Yanan , Zhao Yong , Gu Yichao , Li Shuangshuang , Liao Junmin , Huang Jinshi 
Published: April 2020

Summary
We aimed to investigate the safety, feasibility, and outcomes of thoracoscopic surgery for recurrent tracheoesophageal fistula (rTEF) after esophageal atresia repair. The medical records and follow-up data of 31 patients who underwent thoracoscopic surgery for rTEF at a single institution were collected and reviewed. In total, 31 patients were enrolled with a median age of 7 months (range: 3–30 months) and a median weight of 6,000 g (range: 4,000–12,000 g) before reoperation. The median operation time for the entire series was 2.9 hours (range: 1.5–7.5 hours), and the median total hospitalization duration after surgery was 19 days (range: 11–104 days). One patient died of anastomotic leakage, a second rTEF, severe malnutrition, and thoracic infection; the mortality rate was 3.23% (1/31). Nine patients (9/31, 29.03%) had an uneventful recovery, and the incidences of postoperative anastomotic leakage, anastomotic stricture, and second rTEF were 25.81%, 61.29%, and 9.68%, respectively. After a median follow-up of 12 months (range: 3–24 months), 26 survivors resumed full oral feeding, 2 were tube fed, 2 required a combination of methods, and 4 patients experienced severe respiratory complications. In total, 9 patients had pathological gastroesophageal reflux, and 2 patients eventually underwent Nissen fundoplication. Of the 30 survivors with growth chart data, the median weight for age Z-score, height for age Z-score, and weight for height Z-score were − 0.46 (range: −5.1 to 2.8), 0.75 (range: −2.7 to 4.7), and − 1.14 (range: −6.8 to 3.0), respectively. Thoracoscopic surgical repair for rTEF is safe, feasible, and effective with acceptable mortality and morbidity.
Mincle/Syk Signalling Promotes Intestinal Mucosal Inflammation Through Induction of Macrophage Pyroptosis in Crohn’s Disease
Authors: Gong Wenbin , Zheng Tao , Guo Kun , Fang Miao , Xie Haohao , Li Weijie , Tang Qinqing , Hong Zhiwu , Ren Huajian , Gu Guosheng , Wang Gefei , Wu Xiuwen , Zhao Yun , Ren Jianan 
Published: April 2020

Abstract

Background
Macrophage-inducible C-type lectin [Mincle] signalling plays a proinflammatory role in different organs such as the brain and liver, but its role in intestinal inflammation, including Crohn’s disease [CD], remains unknown.

Methods
The characteristics of Mincle signalling expression in CD patients and experimental colitis were examined. The functional role of Mincle signalling in the intestine was addressed in experimental colitis models in vivo by using Mincle knock-out [Mincle-/-] mice. In addition, neutralising anti-Mincle antibody, downstream spleen tyrosine kinase [Syk] inhibitor, and Mincle pharmacological agonist were used to study the Mincle signalling in intestine. Bone marrow-derived macrophages were collected from mice and used to further verify the effect of Mincle signalling in macrophages.

Results
This study has shown that Mincle signalling was significantly elevated in active human CD and experimental colitis, and macrophages were the principal leukocyte subset that upregulate Mincle signalling. Mincle deficiency and Syk pharmacological inhibition ameliorated the colitis by reducing induced macrophage pyroptosis, and activation of Mincle with the agonist aggravated the intestinal inflammation. The ex vivo studies demonstrated that activation of Mincle signalling promoted the release of proinflammatory cytokines, whereas its absence restricted release of proinflammatory cytokines from pyroptosis of macrophages. In addition, Mincle/Syk signalling in macrophages could promote the production of chemokines to recruit neutrophils by activating mitogen-activated protein kinase [MAPK] during intestinal inflammation.

Conclusions
Mincle signalling promotes intestinal mucosal inflammation by inducing macrophage pyroptosis. Modulation of the Mincle/Syk axis emerges as a potential therapeutic strategy to target inflammation and treat CD.