bluuebunny/crossref_metadata_2025_split huggingface dataset:
PENTINGNYA STATUS ANEMIA DALAM KEHAMILAN DENGAN PERDARAHAN POSTPARTUM PRIMER
Authors: Taqiyya Nadia , Nuswantoro Djohar , C.L Muhammad Ardian 
Published: July 2021

Abstrak Latar belakang : Kejadian perdarahan postpartum merupakan penyebab kematian ibu tertinggi ketiga di Kota Surabaya Provinsi Jawa Timur. Hal tersebut diiringi oleh kejadian anemia pada ibu hamil di Indonesia yang meningkat pada tahun 2018 sebesar 48.9% daripada tahun 2013 sebesar 37.1%. Penelitian ini bertujuan untuk menganalisis hubungan anemia dalam kehamilan dengan perdarahan postpartum primer di Rumah Sakit DKT Gubeng Pojok Kota Surabaya. Metode : penelitian ini menggunakan metode analitik observasional dengan rancangan penelitian case control design. Jumlah sampel sebanyak 60 ibu bersalin secara pervaginam yang sesuai dengan kriteria eksklusi dan inklusi. Variabel bebas anemia dalam kehamilan adalah sedangkan variabel terikat adalah perdarahan postpartum primer. Hasil : Sebagian besar ibu bersalin secara pervaginam 60% mengalami anemia dalam kehamilan dengan analisis uji chi square menunjukkan p value = 0.000 (p < 0.05), Odds Ratio sebesar 21.35, dan berdasarkan hasil uji T test didapatkan rata-rata kadar Hb pada kelompok anemia sebesar 9.058 g% dengan standar deviasi 0.9782 dan rata-rata kadar Hb pada kelompok non-anemia sebesar 12.063 g% dengan standar deviasi 1.13792 yang menunjukkan bahwa terdapat perbedaan yang signifikan. Kesimpulan : Terdapat hubungan yang signifikan antara anemia dalam kehamilan dengan kejadian perdarahan postpartum primer sehingga bidan sebagai tenaga kesehatan di lini utama harus memperhatikan kadar Hb pada masa kehamilan.Abstract Background : Primary postpartum hemorrhage was the third-highest cause of maternal death in the city of Surabaya, East Java Province. This was accompanied by the incidence of anemia in a pregnant women in Indonesia which increased in 2018 by 48.9% compared to 2013 at 37.1%. This study aimed to analyze the relationship anemia in pregnancy with primary postpartum hemorrhage in DKT Gubeng Pojok hospitals in Surabaya city East Java. Method : This study used analytic observational methods with a case-control study research design. The number of samples was 60 vaginal delivery mothers who were under the criteria of exclusion and inclusion. A sampling of this study used purposive sampling with independent variable is anemia in pregnancy and dependent variable is primary postpartum hemorrhage. Result : Most of mothers that gave birth pervaginally 60% had anemia in pregnancy with analysis chi-square test showing p-value =0.000 (p<0.05) , Odds Ratio of 21.35, and based on the results of the T-test it was found that the mean Hb level in the anemic group was 9.058 g% with standard deviation of 0.9782 and the mean Hb level in the non-anemic group was 12.063 g% with standard deviation of 1.13792 indicating that there were significant differences. Conclusion : There is a significant relationship between anemia in pregnancy with the incidence of primary postpartum hemorrhage , so that midwives as health workers in the mainline must pay attention to Hb levels during pregnancy.
Gas-Kick Simulation in Oil-Based Drilling Fluids with Nonequilibrium Gas-Dissolution and -Evolution Effects
Authors: Xu Zhengming , Chen Xuejiao , Song Xianzhi , Zhu Zhaopeng , Zhang Wenping 
Published: July 2021

SummaryThe nonequilibrium dissolution and evolution characteristics of gas in oil-based drilling fluids (OBDFs) greatly affect the ratio of free gas to dissolved gas in the wellbore, thus influencing the prediction accuracy of the wellbore-pressure and surface responses. Previous equilibrium-state models can result in the incorrect estimation of the multiphase-flow parameters during a gas kick in OBDFs. Therefore, a nonequilibrium gas/liquid two-phase-flow model is developed for simulations of gas kicks in OBDFs. Nonequilibrium gas-kick behaviors in OBDFs are investigated using the proposed model, and it is concluded that there is a unique gas-dissolving stage in comparison to the equilibrium gas-kick conditions. In this stage, the pit gain decreases to a large extent, and this phenomenon can be misinterpreted by the drilling crew as a loss of circulation or a decrease in the gas-kick intensity. The drilling-fluid-outflow rate is not a reliable gas-kick indicator because of the lower increment in the drilling-fluid-outflow rate under both nonequilibrium and equilibrium gas-dissolution conditions. Neglecting the gas-evolution rate in OBDFs could lead to overestimations of the maximum pit gain and the drilling-fluid-outflow rate. More gas moves from the wellbore in the form of dissolved gas under noninstantaneous gas-evolution conditions. The results of this study provide a theoretical basis for the safe and efficient treatment of gas kicks in OBDFs.
A novel tree-based algorithm for real-time prediction of rockburst risk using field microseismic monitoring
Authors: Yin Xin , Liu Quansheng , Pan Yucong , Huang Xing 
Published: July 2021

Abstract
Rockburst is a kind of complex and catastrophic dynamic geological disaster in the development and utilization of underground space, which seriously threatens the safety of personnel and environment. Due to the suddenness in time and randomness in space, the prediction of rockburst becomes a great challenge. Microseismic monitoring is capable to continuously capture rock microfracture signals in real time, which offers an effective means for rockburst prediction. With the explosive growth of monitoring data, the conventional manual forecasting methods are laborious and time-consuming. Therefore, artificial intelligence was introduced to improve the prediction efficiency. A novel tree-based algorithm was proposed. Its basic idea was to automatically recognize precursory microseismic sequences for the real-time prediction of rockburst intensity. The database consisting of 1500 microseismic events was analyzed. In order to establish precursory microseismic sequences, dimensionality reduction of the database was first implemented by t-SNE algorithm. Then, k-means clustering algorithm was employed for labelling 1500 microseismic events. Before that, canopy algorithm was adopted to determine the number of clusters. Finally, 300 precursory microseismic sequences were formed by grouping rule. They were further partitioned into two parts through stratified sampling: 70% for training and 30% for validation. The validation results indicated that the precursor tree with pruning achieved higher prediction accuracy of 98.9% than one without pruning on the validation set. And the increase was separately 12.2%, 9.2% and 28.6% on the whole validation set and each classes (low/moderate rockburst). In comparison with low rockburst, moderate rockburst was minority class. The improved accuracy on moderate rockburst suggested that pruning can enhance the recognition ability of precursor tree for minority class. Additionally, two extra rockburst cases were collected from a diversion tunnel in northwestern China, which provided a complete workflow about how to apply the built precursor tree model to achieve field rockburst warning in engineering practice. The tree-based algorithm served as a new and promising way for the real-time rockburst prediction, which successfully integrated field microseismic monitoring and artificial intelligence.
Design on Face Recognition System with Privacy Preservation Based on Homomorphic Encryption
Authors: Yang Yatao , Zhang Qilin , Gao Wenbin , Fan Chenghao , Shu Qinyuan , Yun Hang 
Published: July 2021

Abstract
Face recognition is playing an increasingly important role in present society, and suffers from the privacy leakage in plaintext. Therefore, a recognition system based on homomorphic encryption that supports privacy preservation is designed and implemented in this paper. This system uses the CKKS algorithm in the SEAL library, Microsoft’s latest homomorphic encryption achievement, to encrypt the normalized face feature vectors, and uses the FaceNet neural network to learn on the image’s ciphertext to achieve face classification. Finally, face recognition in ciphertext is accomplished. After been tested, the whole process of extracting feature vectors and encrypting a face image takes only about 1.712s in the developed system. The average time to compare a group of images in ciphertext is about 2.06s, and a group of images can be effectively recognized within 30 degrees of face bias, the identification accuracy can reach 96.71%. Compared with the face recognition scheme based on the Advanced Encryption Standard(AES) encryption algorithm in ciphertext proposed by Wang et al. in 2019, our scheme improves the recognition accuracy by 4.21%. Compared with the image recognition scheme based on Elliptical encryption algorithm in ciphertext proposed by Kumar S et al. in 2018, the total time in our system is decreased by 76.2%. Therefore, this scheme has better operational efficiency and practical value while ensuring the users’ personal privacy. Compared with the face recognition system in plaintext presented in recent years, our scheme has almost the same level on recognition accuracy and time efficiency.
Influence of Sea Level Pressure on inter-annual rainfall variability in northern Senegal in the context of climate change
Authors: Diop Aichetou Dia , Wade Malick , Zebaze Sinclaire , DIOP Abdoulaye Bouya , Efon Eric , Lenouo Andre , DIOP Bouya 
Published: July 2021

Abstract
This study examines the inter-annual variability of rainfall and mean Sea Level Pressure (SLP) over west Africa based on analysis of the Global Precipitation Climatology Project (GPCP) and National Center for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) Reanalysis respectively. An interconnection is found in this region, between MSLP anomaly (over Azores and St. Helena High) and monthly mean precipitation during summer (June to September: JJAS). We also found that over northern Senegal (15°N-17°N; 17°W-13°W) the SLP to the north is strong; the wind converges at 200hPa corresponding to the position of the tropical Easterly jet (TEJ); the rotational wind 700hPa (corresponding to the position of the AEJ) coming from the north-east is negative. In this region, the precipitation is related to the SLP to the north with the opposite sign. The empirical orthogonal functions (EOF) of SLP are also presented, including the mean spectrum of precipitation and pressures to the north (15°N-40°N and 50°W-25°W) and south (40°S-10°S and 40°W-0°E). The dominant EOF of Sea Level Pressures north and south of the Atlantic Ocean for GPCP represents about 62.2% and 69.4% of the variance, respectively. The second and third EOFs of the pressure to the north account for 24.0% and 6.5% respectively. The second and third EOFs of the pressure to the south represent 12.5% and 8.9% respectively. Wet years in the northern of Senegal were associated with anomalous low-pressure area over north Atlantic Ocean as opposed to the dry years which exhibited an anomalous high-pressure area in the same region. On the other hand, over south Atlantic, an opposition is noted. The wavelet analysis method is applied to the SLP showings to the north, south and precipitation in our study area. The indices prove to be very consistent, especially during intervals of high variance.
DRD2 and BDNF Polymorphisms Are Associated with Binge Eating Disorder in Patients with Weight Regain After Bariatric Surgery
Authors: Nonino Carla Barbosa , Barato Mariana , Ferreira Flavia Campos , Delfino Heitor Bernardes Pereira , Noronha Natalia Yumi , Nicoletti Carolina Ferreira , Junior Wilson Salgado , Welendorf Caroline Rossi , Souza Doroteia Rossi Silva , Ferreira-Julio Maysa Araújo , Watanabe Ligia Moriguchi , Pinhel Marcela Augusta de Souza 
Published: July 2021

Abstract
Aim: To analyze the association and susceptibility of Single Nucleotide Polymorphisms (SNPs) in the DRD2 and BDNF genes with BED in patients with weight regain in the postoperative period of bariatric surgery. Methods: 177 individuals who underwent bariatric surgery with weight regain were evaluated and divided into two groups according to the BED diagnostic. The individuals were submitted to an anthropometric evaluation, analysis of the presence of BED using a validated questionnaire, and blood collection for genotyping of the polymorphisms rs6265 (BDNF) and rs1800497 (DRD2) by Real-Time Polymerase Chain Reaction (RT-PCR). Results: the presence of wild-type alleles for rs1800497 (CC) and rs6265 (GG) were more frequent in patients without BED. Nevertheless, the presence of one or two variant alleles for rs1800497 (CT+TT) and rs6265 (GA+AA) was more frequent in patients with BED. The combination of the two studied SNPs prevailed in patients with BED. Conclusions: In the presence of polymorphisms rs1800497 in the DRD2 gene and rs6265 in the BDNF gene, isolated and/or combined could occur an additional risk for the development of BED in patients with obesity, especially in the context of weight regain.Level of evidence: III (evidence obtained from the case-control analytic study).
Gamma (γ)-mangostin attenuated gastric ulcers induced by absolute alcohol in rats: Histological, immunohistochemical and biochemical investigation
Authors: Bradosty Sarwan W. , Hamad Saber W. , Shaikh Faiyaz Khudaboddin , Nanakali Nadir Mustafa , saed Hero Helal Muhammed , Shareef Suhyla Hamad , Agha Nabaz FisalShakir , Hussaini Jamal , Al-Medhtiy Morteta H. , Abdulla Mahmood Ameen , Suzergoz Faruk 
Published: July 2021

Abstract
Garcinia mangostana L. (Clusiaceae) principally contains gamma (γ)-mangostin, a xanthone that exhibits a wide spectrum of bioactivities. The current study was aimed to establish the gastroprotective effect of this compound in ethanol-induced gastric mucosal injuries in rats. Experimental Sprague Dawley (SD) rats (n = 30) were arbitrarily alienated into 5 groups (n = 6): negative control (10% Tween 20), ulcer control (10% Tween 20 + 5ml/kg absolute alcohol), reference control (5ml/kg absolute alcohol + 20mg/kg omeprazole), and two experimental groups (5ml/kg absolute alcohol + 10mg/kg γ-mangostin and 5ml/kg absolute alcohol + 20mg/kg γ-mangostin). After successful oral feeding, all rats were anesthetized and sacrificed. Gastro-histology highlighted severe injuries to the gastric mucosa with decrease in gastric mucosal content and gastric juice pH in ulcer control group. γ-mangostin (10 mg/kg & 20 mg/kg) showed strong gastroprotective effect by enhancing gastric mucosal content and gastric juice pH compared to the ulcer group, comparable to the omeprazole. Immuno-histochemical analysis revealed that γ-mangostin found to upregulate mucosal Hsp70 protein, and down-regulate Bax proteins. The biochemical analysis of mucosal tissue homogenate showed significant antioxidant activity with increase in SOD and CAT activities, whereas MDA was significantly decreased at p < 0.001. The histological, immuno-histochemical and biochemical analysis evidenced gastroprotective effects of γ-mangostin that are attributed to its potential to inhibit alcohol induced oxidative stress. Specifically, γ-mangostin improved histology of mucosal content and enhanced anti-oxidative enzymes (SOD & CAT) with decreasing lipid peroxidation (MDA). Furthermore dose dependent administration of γ-mangostin down-regulated expression of Bax protein and up-regulated HSP70.
Overexpression of NLRPs as Independent Indicator for Prognosis of Patients with Head and Neck Squamous Cell Carcinoma
Authors: Xu Jiayuan , Bangliang Li , Wen Wang , Lin S 
Published: July 2021

Abstract
NOD-like receptor proteins (NLRPs) are an important part of gene regulation and play a vital role in many cancers. Recently, some studies have shown that members of the NLRP family are a crucial component in the progression of head and neck squamous cell carcinoma (HNSCC) and can be used as the main therapeutic targets. To explore this hypothesis, bioinformatics analyses using Gene Expression Profiling Interactive Analysis (GEPIA), Oncomine, UALCAN, the Human Protein Atlas, and the cBioPortal database were performed in this study to determine the intracellular roles and functions of NLRPs. String and Cytoscape were also employed to investigate and visualize the proteins in intracellular pathways related to the regulation of HNSCC carcinogenesis. Further analysis revealed that the overexpression of NLRPs was significantly related to the HNSCC stage and the survival of patients. We also explored the miRNAs downstream of NLRPs involved in nasopharyngeal carcinoma using GEO2R, TargetScan, and miRDB, and found that NLRPs can serve as prognostic biomarkers for the survival of HNSCC patients.
Investigation of Optic Disc and Retinal Microvasculature by Optical Coherence Tomography Angiography in Children with Asthma
Authors: Karaaslan Abdulkerim , Kurtul Bengi Ece , Cakmak Ayse Idil , El Cigdem 
Published: July 2021

Abstract
Purpose

To investigate the optic disc and retinal microvasculature by optical coherence tomography angiography (OCTA) in children with asthma and compare them with healthy ones.
Methods

Sixty eyes of 30 asthmatic children (asthma group), 60 eyes of 30 control age- and sex- matched healthy subjects (control group) were included to this study, prospectively. Demographic features and ophthalmological examination including OCTA measurements were evaluated. The OCTA was performed with 6x6 mm sections for macula and 4.5x4.5 mm sections for optic disc in all eyes. Retinal nerve fiber layer (RNFL) thickness, vessel density in different sections of retina, and optic nerve head were analyzed.
Results

RNFL thickness for temporal quadrants and flow area for outer retina levels were significantly lower in asthma group. However, inside disc densities were significantly higher in asthma group when compared to controls (72.58±10.99µm vs 77.73±9.73µm, p = 0.015, 0.60 ± 0.31mm2 vs 0.72 ± 0.31mm2, p = 0.047, and 55.16 ± 3.71% vs 52.08 ± 3.79%, p < 0.001, respectively).
Conclusions

Asthmatic children seem to have lower values of temporal quadrant RNFL, and flow area for outer retina, but higher levels of inside disc density. These results may have significant implications for understanding of how asthma could affect retinal microvasculature.
Effects of individualized high positive end-expiratory pressure and crystalloid administration on postoperative pulmonary function in patients undergoing robotic-assisted radical prostatectomy: a prospective randomized single-blinded pilot study
Authors: Blecha Sebastian , Hager Anna , Gross Verena , Seyfried Timo , Zeman Florian , Lubnow Matthias , Burger Maximilian , Pawlik Michael 
Published: July 2021

Abstract
Background Robotic-assisted laparoscopic prostatectomy (RALP) using a combination of capnoperitoneum and steep Trendelenburg positioning (STP) results in important pathophysiological pulmonary changes. The aim of the study was to evaluate if restrictive crystalloid administration and individual management of positive end-expiratory pressure (PEEP) improve peri- and postoperative pulmonary function in patients undergoing RALP in permanent 45 degree STP.Methods 98 patients undergoing RALP under standardized anesthesia were either allocated to a standard PEEP (5 mmHg) group or an individualized high PEEP group. Furthermore, each group was divided into a liberal vs restrictive crystalloid group (30 ml vs 15 ml per kg predicted body weight). Individualized PEEP levels were determined by means of preoperative PEEP titration in STP. In each of the four study groups following intraoperative parameters were analyzed: ventilation setting (PIP, driving pressure [Pdriv], lung compliance [LC], mechanical power [MP]), and postoperative pulmonary function (bed-side spirometry). The following spirometric parameters were measured pre- and postoperatively: the Tiffeneau index (FEV1/FVC ratio) and mean forced expiratory flow (FEF25 − 75). Data are shown as mean ± standard deviation (SD), and groups were compared with ANOVA. A P-value of < 0.05 was considered significant.Results The two individualized high PEEP groups (mean PEEP 15.5 [± 1.71 cmH2O]) showed significantly higher PIP and MP levels but significantly decreased Pdriv and increased LC. On the first and second postoperative day, patients with individualized higher PEEP levels had a significantly higher mean Tiffeneau index (day 1: 77.6% (± 6.6) vs 73.6% (± 8.8), P = 0.014; day 2: 76.5% (± 6.1) vs 72.7% (± 9.3), P = 0.021) and FEF25 − 75 (day 1: 2.41 liter/sec (± 0.9) vs 1.95 liter/sec (± 0.8), P = 0.009; day 2: 2.45 liter/sec (± 0.9) vs 2.07 liter/sec (± 0.8), P = 0.033). Perioperative oxygenation and postoperative spirometric parameters were not influenced by restrictive or liberal crystalloid infusion in either of the two PEEP groups.Conclusions Higher individualized PEEP levels during RALP improved blood oxygenation, lung-protective ventilation, and postoperative pulmonary function up to 48 hours after surgery. Restrictive crystalloid infusion during RALP seemed to have no effect on peri- and postoperative oxygenation and pulmonary function.
Dispersive temporal holography for single-shot recovering comprehensive ultrafast dynamics
Authors: Wang Wenchao , Xian Tianhao , Zhan Li 
Published: July 2021

Abstract
It is critical to characterize the carrier and instantaneous frequency distribution variation in ultrafast processes, all of which are determined by the optical phase. Nevertheless, there is no method that can single-shot record the intro-pulse phase evolution of pico/femtosecond signals, to date. By analogizing holographic principle in space to the time domain and using the time-stretch method, we propose the dispersive temporal holography to single-shot recover the phase and amplitude of ultrafast signals. It is a comprehensive technology and can be applied to analyze ultrafast signals with highly complex dynamics. Encouraged by the accurate restoration of self-similar amplification of parabolic pulses, we track rogue wave and breathers' formation and evolution. The details of rogue waves emerging from the Fermi-Pasta-Ulam-Tsingou recurrence and chaotic modulation instability were experimentally demonstrated for the first time. The method provides a powerful tool for exploring ultrafast science, which may benefit many fields, including laser dynamics, ultrafast diagnostics, nonlinear optics, and so on.