bluuebunny/crossref_metadata_2025_split huggingface dataset:
PERANCANGAN JARINGAN DISTRIBUSI 220/380 VOLT PADA KANTOR WALIKOTA DARI FEEDER PLTSA KOTA KENDARI
Authors: Kasim Muh Hutri Lipultah 
Published: October 2021

Telah dilakukan perencanaan jaringan distribusi tegangan rendah pada kantor walikota kota kendari dari Feeder PLTSA Kota Kendari. System distribusi jaringan tegangan rendah adalah bagian dari system tenaga listrik yang berada di antara sumber daya listrik dan pemakai tenaga listrik(konsumen).Dengan bertambahnya kebutuhan daya listrik memaksakan jaringan tegangan rendah yang semakin handal guna menyediakan sumber listrik yang optimal. Salah satu bagian dari proses penyediaan tenaga listrik bagi konsumen pelanggan listrik adalah operasi jaringan distribusi.Saluran Udata Tegangan Rendah adalah system penyaluran tegangan listrik 380-400 Volt melalui kawat hantar udara direntang diatas tiang kontruksi, secara ekonomis jaringan saluran udara tegangan rendah lebih murah dibanding saluran kabel tegangan rendah bawah tanah.Untuk konstruksi jaringan SUTR yang berdiri sendiri dipakai tiang beton atau tiang besi dengan panjang 9-13 meter. Tiang beton yang dipakai dari berbagai jenis yang memiliki kekuatan beban kerja (working load) 200daN, 350daN dan 500daN (dengan angka faktor keamanan tiang=2 ) Pada titik yang memerlukan pembumian dipakai tiang beton yang dilengkapi dengan terminal pembumian. Untuk langkah selanjutnya bias dilanjutkan dengan perancangan kabel bawah tanah. Kata Kunci : Jaringan Distribusi, Perancangan, SUTR.
PROTOTYPE RADAR PENDETEKSI OBJEK DI DALAM RUANGAN
Authors: Asri Yoana Nurul 
Published: October 2021

Keterbatasan jarak pandang dalam mendeteksi keberadaan objek menjadi sebuah masalah dalam aplikasi kontrol dan monitoring. Sehingga salah satu teknologi saat ini ialah adalah penggunaan radar. Salah satu fungsi radar yaitu untuk mendeteksi jarak objek. Dalam penelitian ini dibuat prototype radar untuk mengetahui keberadaan objek dalam satu sisi. Prototype menggunakan tujuh buah komponen. Objek yang diukur terdiri dari tiga buah dengan perbedaan ukuran sisi yakni 5, 8, dan 10 cm. Diperoleh hasil bahwa semakin besar ukuran objek dan semakin dekat sebuah objek dengan sensor maka hasil pembacaan jarak akan semakin akurat, begitu pun sebaliknya. Perbedaan jarak dan sudut yang sebenarnya dengan pembacaan radar dalam tampilan GUI memiliki hasil yang lebih bervariasi pada objek yang memiliki luasan sisi lebih besar. Perbedaan pembacaan jarak radar dengan yang sebenarnya maksimum hanya 1 cm dengan rata-rata kesalahan pembacaan sebesar 0,1 %.
Proposed Methodology to Quantify the Amount of Methane Seepage by Understanding the Correlation Between Methane Plumes and Originating Seeps
Authors: Aoyama Chiharu , Maeda Nidomu 
Published: October 2021

In recent years, discoveries of methane plumes (also called methane flares) have been reported in various sea areas around the world. Clusters of naturally seeping methane bubbles rising from the seafloor are visualized as methane plumes on the echograms of quantitative echo sounders and multibeam sonars. In order to determine if seeping methane can be used as energy resources and its environmental impact, it is necessary to estimate the amount of naturally seeping methane. From April, 2020, a 3-year project is being conducted in Japan to evaluate the amount of methane seepage from methane plumes. The authors propose the following steps to quantify the amount of methane seepage accurately. First of all, methane plumes in the Exclusive Economic Zone (EEZ) of Japan are mapped out using acoustic devices such as quantitative echo sounders and multibeam sonars. Secondly, methane bubbles of a few millimeters in diameter from methane seeps at seafloor are collected and sampled using a cone-shaped collector with 20 cm in diameter, operated by Remotely Operated Vehicle (ROV). If we can identify the number of seep mouths that form into one single plume, we will be able to quantify the methane seepage from one plume. Based on this result, calibration of the mean backscattering strength and the amount of seeping methane from methane plumes becomes possible and will be applied to the mapped plumes in order to estimate the methane seepage in the EEZ of Japan. Once this calibration is established, it can be applied to the methane plumes observed worldwide, and methane seepage can be quantified simply by acoustic observations of methane plumes. In this study, a method to verify the correlation between methane plumes and methane seeps is introduced, as well as a method to locate methane seeps effectively using the Target Position function of a quantitative echo sounder. The authors intend to use this as the basic data for establishing a method to estimate the amount of methane released from a methane plume by observing the methane plume acoustically.
Experimental Investigation of a Thermochemical Reactor for High-Temperature Heat Storage via Carbonation-Calcination Based Cycles
Authors: Wild Michael , Lüönd Lorenz , Steinfeld Aldo 
Published: October 2021

We report on the design of a modular, high-temperature thermochemical energy storage system based on endothermic-exothermic reversible gas-solid reactions for application in concentrated solar power and industrial thermal processes. It consists of an array of tubular reactors, each containing an annular packed bed subjected to radial flow, and integrated in series with a thermocline-based sensible thermal energy storage. The calcination-carbonation of limestone, CaCO3 ↔ CaO + CO2, is selected as the reversible thermochemical reaction for the experimental demonstration. Synthetized 4.2 mm-mean size agglomerates and 2 mm-mean size granules of CaO with 42 %wt sintering-inhibitor MgO support attained reaction extents of up to 84.0% for agglomerates and 31.9% for granules, and good cycling stability in pressure-swing and temperature-swing thermogravimetric runs. A lab-scale reactor prototype is fabricated and tested with both formulations for 80 consecutive carbonation-calcination cycles at ambient pressure using a temperature-swing mode between 830°C and 930°C. The reactor exhibited stable cyclic operation and low pressure drop, and yielded specific gravimetric and volumetric heat storage capacities of 866 kJ/kg and 322 MJ/m3 for agglomerates, respectively, and 450 kJ/kg and 134 MJ/m3 for granules, respectively.
Respiratory Outcomes in Patients Following COVID-19-Related Hospitalization: A Meta-Analysis
Authors: Guo Tao , Jiang Fangfang , Liu Yufei , Zhao Yunpeng , Li Yiran , Wang Yihua 
Published: October 2021

Background: To determine the respiratory outcomes in patients following COVID-19-related hospitalization.Methods: Systematic review and meta-analysis of the literature.Results: Forced vital capacity (FVC, % of predicted): 0–3 months post discharge: 96.1, 95% CI [82.1–110.0]; 3–6 months post discharge: 99.9, 95% CI [84.8, 115.0]; &gt;6 months post discharge: 97.4, 95% CI [76.8–118.0]. Diffusing capacity of the lungs for carbon monoxide (DLCO, % of predicted): 0–3 months post discharge: 83.9, 95% CI [68.9–98.9]; 3–6 months post discharge: 91.2, 95% CI [74.8–107.7]; &gt;6 months post discharge: 97.3, 95% CI [76.7–117.9]. Percentage of patients with FVC less than 80% of predicted: 0–3 months post discharge: 10%, 95% CI [6–14%]; 3–6 months post discharge: 10%, 95% CI [2–18%]; &gt;6 months post discharge: 13%, 95% CI [8–18%]. Percentage of patients with DLCO less than 80% of predicted: 0–3 months post discharge: 48%, 95% CI [41–56%]; 3–6 months post discharge: 33%, 95% CI [23–44%]; &gt;6 months post discharge: 43%, 95% CI [22–65%].Conclusion: The meta-analysis confirms a high prevalence of persistent lung diffusion impairment in patients following COVID-19-related hospitalization. Routine respiratory follow-up is thus strongly recommended.
Severity Grading, Risk Factors, and Prediction Model of Complications After Epilepsy Surgery: A Large-Scale and Retrospective Study
Authors: Liu Yong , Wu Hao , Li Huanfa , Dong Shan , Liu Xiaofang , Li Kuo , Du Changwang , Meng Qiang , Zhang Hua 
Published: October 2021

Purpose: To report complications after epilepsy surgery, grade the severity of complications, investigate risk factors, and develop a nomogram for risk prediction of complications.Methods: Patients with epilepsy surgery performed by a single surgeon at a single center between October 1, 2003 and April 30, 2019 were retrospectively analyzed. Study outcomes included severity grading of complications occurring during the 3-month period after surgery, risk factors, and a prediction model of these complications. Multivariable logistic regression analysis was used to calculate odds ratio and 95% confidence interval to identify risk factors.Results: In total, 2,026 surgical procedures were eligible. There were 380 patients with mild complications, 23 with moderate complications, and 82 with severe complications. Being male (odds ratio 1.29, 95% confidence interval 1.02–1.64), age at surgery (&gt;40 years: 2.58, 1.55–4.31; ≤ 40: 2.25, 1.39–3.65; ≤ 30: 1.83, 1.18–2.84; ≤ 20: 1.71, 1.11–2.63), intracranial hemorrhage in infancy (2.28, 1.14–4.57), serial number of surgery ( ≤ 1,000: 1.41, 1.01–1.97; ≤ 1,500: 1.63, 1.18–2.25), type of surgical procedure (extratemporal resections: 2.04, 1.55–2.70; extratemporal plus temporal resections: 2.56, 1.80–3.65), surgery duration (&gt;6 h: 1.94, 1.25–3.00; ≤ 6: 1.92, 1.39–2.65), and acute postoperative seizure (1.44, 1.06–1.97) were independent risk factors of complications. A nomogram including age at surgery, type of surgical procedure, and surgery duration was developed to predict the probability of complications.Conclusions: Although epilepsy surgery has a potential adverse effect on the patients, most complications are mild and severe complications are few. Risk factors should be considered during the perioperative period. Patients with the above risk factors should be closely monitored to identify and treat complications timely. The prediction model is very useful for surgeons to improve postoperative management.
Modulation of Dorsolateral Prefrontal Cortex Glutamate/Glutamine Levels Following Repetitive Transcranial Magnetic Stimulation in Young Adults With Autism
Authors: Moxon-Emre Iska , Daskalakis Zafiris J. , Blumberger Daniel M. , Croarkin Paul E. , Lyon Rachael E. , Forde Natalie J. , Tani Hideaki , Truong Peter , Lai Meng-Chuan , Desarkar Pushpal , Sailasuta Napapon , Szatmari Peter , Ameis Stephanie H. 
Published: October 2021

Altered excitatory and inhibitory neurotransmission has been implicated in autism spectrum disorder (ASD). Interventions using repetitive transcranial magnetic stimulation (rTMS) to enhance or inhibit cortical excitability are under study for various targets, though the mechanistic effects of rTMS have yet to be examined in ASD. Here, we examined whether an excitatory rTMS treatment course modulates glutamatergic (Glx) or γ-aminobutyric acid (GABA) metabolite levels in emerging adults with ASD. Twenty-eight participants with ASD and executive function impairment [23.3 ± 4.69 years; seven-female] underwent two magnetic resonance spectroscopy (MRS) scans of the left dorsolateral prefrontal cortex (DLPFC). MRS scans were acquired before and after participants with ASD were randomized to receive a 20-session course of active or sham rTMS to the DLPFC. Baseline MRS data was available for 19 typically developing controls [23.8 ± 4.47 years; six-female]. Metabolite levels for Glx and GABA+ were compared between ASD and control groups, at baseline, and metabolite level change, pre-to-post-rTMS treatment, was compared in ASD participants that underwent active vs. sham rTMS. Absolute change in Glx was greater in the active vs. sham-rTMS group [F(1,19)= 6.54,p= 0.02], though the absolute change in GABA+ did not differ between groups. We also examined how baseline metabolite levels related to pre/post-rTMS metabolite level change, in the active vs. sham groups. rTMS group moderated the relation between baseline Glx and pre-to-post-rTMS Glx change, such that baseline Glx predicted Glx change in the active-rTMS group only [b= 1.52,SE= 0.32,t(18)= 4.74,p&lt; 0.001]; Glx levels increased when baseline levels were lower, and decreased when baseline levels were higher. Our results indicate that an interventional course of excitatory rTMS to the DLPFC may modulate local Glx levels in emerging adults with ASD, and align with prior reports of glutamatergic alterations following rTMS. Interventional studies that track glutamatergic markers may provide mechanistic insights into the therapeutic potential of rTMS in ASD.Clinical Trial Registration:Clinicaltrials.gov(ID: NCT02311751),https://clinicaltrials.gov/ct2/show/NCT02311751?term=ameis&amp;rank=1; NCT02311751.
Qualitative Histopathological Classification of Primary Bone Tumors Using Deep Learning: A Pilot Study
Authors: Tao Yuzhang , Huang Xiao , Tan Yiwen , Wang Hongwei , Jiang Weiqian , Chen Yu , Wang Chenglong , Luo Jing , Liu Zhi , Gao Kangrong , Yang Wu , Guo Minkang , Tang Boyu , Zhou Aiguo , Yao Mengli , Chen Tingmei , Cao Youde , Luo Chengsi , Zhang Jian 
Published: October 2021

BackgroundHistopathological diagnosis of bone tumors is challenging for pathologists. We aim to classify bone tumors histopathologically in terms of aggressiveness using deep learning (DL) and compare performance with pathologists.MethodsA total of 427 pathological slides of bone tumors were produced and scanned as whole slide imaging (WSI). Tumor area of WSI was annotated by pathologists and cropped into 716,838 image patches of 256 × 256 pixels for training. After six DL models were trained and validated in patch level, performance was evaluated on testing dataset for binary classification (benign vs. non-benign) and ternary classification (benign vs. intermediate vs. malignant) in patch-level and slide-level prediction. The performance of four pathologists with different experiences was compared to the best-performing models. The gradient-weighted class activation mapping was used to visualize patch’s important area.ResultsVGG-16 and Inception V3 performed better than other models in patch-level binary and ternary classification. For slide-level prediction, VGG-16 and Inception V3 had area under curve of 0.962 and 0.971 for binary classification and Cohen’s kappa score (CKS) of 0.731 and 0.802 for ternary classification. The senior pathologist had CKS of 0.685 comparable to both models (p = 0.688 and p = 0.287) while attending and junior pathologists showed lower CKS than the best model (each p &lt; 0.05). Visualization showed that the DL model depended on pathological features to make predictions.ConclusionDL can effectively classify bone tumors histopathologically in terms of aggressiveness with performance similar to senior pathologists. Our results are promising and would help expedite the future application of DL-assisted histopathological diagnosis for bone tumors.
Restoration of the Oral Microbiota After Surgery for Head and Neck Squamous Cell Carcinoma Is Associated With Patient Outcomes
Authors: Chan Jason Y. K. , Ng Cherrie W. K. , Lan Linlin , Fung Sherwood , Li Jing-Woei , Cai Liuyang , Lei Pu , Mou Qianqian , Meehan Katie , Lau Eric H. L. , Yeung Zenon , Chan K. C. Allen , Wong Eddy W. Y. , Chan Paul K. S. , Chen Zigui 
Published: October 2021

ObjectiveTo evaluate the dynamics of the oral microbiome and associated patient outcomes following treatment of head and neck squamous cell carcinoma (HNSCC).Materials and MethodsThis was a prospective cohort study at a tertiary academic center in Hong Kong SAR of patients with head and neck squamous cell carcinoma evaluating the oral microbiome in pre- and postsurgery oral rinses (at 1, 3, and 6 months) with 16S rRNA gene V3–V4 amplicon sequencing.ResultsIn total, 76 HNSCC patients were evaluated. There was a significantly depressed alpha diversities of oral microbial communities observed in HNSCC oral rinse samples within the first 6 months post-surgery when compared to presurgery or healthy controls. Distant clustering between pre- and postsurgery was also observed (p &lt; 0.022). Following treatment, eight oral bacterial genera showed a trend towards the restoration in the relative abundances that approximate healthy persons. In evaluating patient outcomes, the decreased relative abundance of three periodontal bacteria (Capnocytophaga, Prevotella 7, and Leptotrichia) and the increased relative abundance of two commensal bacteria (Streptococcus and Rothia) at 6 months postsurgery compared to presurgery showed a better 3-year disease-specific survival (a cutoff of Kaplan–Meier survival curve test p &lt; 0.3 at 36 months). In particular, the postsurgery restoration of Prevotella 7 was statistically significant in the surveyed patients (survival rate of 84% vs. 56% at 36 months, p = 0.0065).ConclusionsOral microbiome dysbiosis associated with HNSCC is dynamic. These dynamics of the oral microbiome postsurgery are also associated with patient treatment and outcomes and may serve as potential biomarkers for patient management in HNSCC.
Effect of Probenecid on Endothelial Cell Growth Rate and Retinal Angiogenesis in an Oxygen-Induced Retinopathy Model
Authors: Jiang Jingbo , Ou Weiming , Luo Xianqiong , Xiang Jianwen , Liu Guosheng , Huang Shuiqing , Li Hongping , He Longkai , Gan Jiamin , Han Shasha , Nie Chuan 
Published: October 2021

Objectives: Probenecid is an anion transport inhibitor, which, according to the connectivity map (CMap; a biological application database), interferes with hypoxia-induced gene expression changes in retinal vascular endothelial cells (ECs). Here, we investigated the influence of probenecid on retinal EC cytotoxicity and retinal neovascularization in a murine oxygen-induced retinopathy (OIR) model.Methods: The retinal EC growth rate in the presence of hypoxia-mimicking concentrations of cobalt chloride (CoCl2) was determined using the thiazolyl blue tetrazolium bromide (MTT) assay and proliferating cell nuclear antigen (PCNA) expression. In OIR rats, probenecid was administered by intraperitoneal injection (i.p.) from postnatal day (P) 1 to P7. The concentrations of vitreous humor vascular endothelial growth factor (VEGF), hypoxia-inducible factor (HIF)-1α, and placental growth factor (PlGF) were determined by using the ELISA kit at P21. The amount of newly formed vascular lumen was evaluated by histopathological examination. Retinopathy and neovascularization were assessed by scoring isolectin B4 fluorescein–stained retinal flat mounts. Western blots for liver tissue HIF-1α and hepcidin (HAMP) were performed.Results:In vitro, probenecid led to the recession of the hypoxia-induced EC growth rate. In vivo, compared to the OIR retina, the upregulation of VEGF, HIF-1α, and PlGF in phase II retinopathy of prematurity (ROP) was inhibited by probenecid administration. Moreover, probenecid ameliorated neovascularization and resulted in significantly reduced relative leakage fluorescence signal intensity in fluorescein-stained retinal flat mounts (p &lt; 0.05). Probenecid alleviated the liver overactivation of HAMP and downregulation of HIF-1α in OIR rats.Conclusions: This is the first demonstration that implies that probenecid might be a protective compound against retinal angiogenesis in OIR. These changes are accompanied with decreased hyperoxia-mediated hepcidin overproduction. Although the relevance of the results to ROP needs further research, these findings may help establish potential pharmacological targets based on the CMap database.
Discovery of Three Novel Cytospora Species in Thailand and Their Antagonistic Potential
Authors: Monkai Jutamart , Tibpromma Saowaluck , Manowong Areerat , Mapook Ausana , Norphanphoun Chada , Hyde Kevin D. , Promputtha Itthayakorn 
Published: October 2021

During an ongoing research survey of saprobic fungi in Thailand, four coelomycetous strains were isolated from decaying leaves in Chiang Mai and Phitsanulok Provinces. Morphological characteristics demonstrated that these taxa are typical of Cytospora in forming multi-loculate, entostromatic conidiomata, branched or unbranched conidiophores, with enteroblastic, phialidic conidiogenous cells and hyaline, allantoid, aseptate conidia. Multiloci phylogeny of ITS, LSU, ACT, RPB2, TEF1-α and TUB2 confirmed these taxa are distinct new species in Cytospora in Cytosporaceae (Diaporthales, Sordariomycetes), viz., Cytospora chiangmaiensis, C. phitsanulokensis and C. shoreae. Cytospora chiangmaiensis has a close phylogenetic relationship with C. shoreae, while C. phitsanulokensis is sister to C. acaciae. These three novel species were also preliminary screened for their antagonistic activity against five plant pathogenic fungi: Colletotrichumfructicola, Co. siamense, Co. artocarpicola, Co. viniferum and Fusarium sambucinum. Cytospora shoreae and C. phitsanulokensis showed >60% inhibition against Co. viniferum and F. sambucinum, while C. chiangmaiensis had moderate inhibition activity against all pathogens.
The Analysis of Development Natural gas-based Petrochemical Industry in Teluk Bintuni Regency
Authors: Oetomo Dedy Setyo , Ramdhani Rizky Fajar 
Published: October 2021

ABSTRACT
The petrochemical industry, especially the petrochemical industry in Teluk Bintuni Regency, West Papua Province, is an industry engaged in natural gas processing by considering the needs of the Upstream Plastic Product Industry Market and its use in supporting human activities. It is hoped that the integration of the upstream-downstream industry can build a strong supply chain. This is in line with the application of industry 4.0 according to the roadmap of Making Indonesia 4.0, which aims to increase the competitiveness of the national industry in the global arena. Examples of upstream petrochemical industry products include methanol, ethylene, propylene, butadiene, benzene, toluene, xylene, coproduct fuels, petrol pyrolysis, fuel oil pyrolysis, raffinate, and C4 mixtures. The analysis developed is using an Industrial Tree Model and porter's value chain analysis and supply chain analysis. The results of this research are seven points.