bluuebunny/crossref_metadata_2025_split huggingface dataset:
Interpretation Patterns for The Distribution of The Turbidity of Soil Water Around TPA Supit Urang (Final Removal of Garbage) Using Geoelectric Resistivity Methods
Authors: Wiyono  , Lailatin N. , Jufriadi A. 
Published: June 2019

Abstract
We conducted measurements using the geoelectric method around the waste disposal site (Supit Urang landfill) in Malang City with 29 measurement data points with a distance between the measurement points of 100 meters. The results of the analysis of groundwater depth were obtained, namely the depth of the first layer variation from 0 meters to 5.34 meters, the second layer from 1.26 meters to 7.39 meters and the third layer from 3 meters to 88 meters. From the results of the study the measurement of groundwater resistivity types can provide an idea of the clarity of water where the closer to turbidity the resistivity value of the groundwater is smaller and vice versa the further the turbidity of the resistivity value. from greater ground water. From the results of the distribution pattern of resistivity we can describe the turbidity value of groundwater in the study area, which is around TPA Supit Urang (Malang City)
The Effect of Temperature to CTAB-assisted Solvothermal Synthesis of TiO2
Authors: Anwari N S , Aini N , Hardian A , Suendo V , Prasetyo A 
Published: June 2019

Abstract
Surface area has significant impact on the photocatalytic activity of semiconductor material. It was found that templates as structure directing agent played a role in regulating the surface area of materials. The most widely used as template is cetyltrimethylammonium bromide (CTAB) surfactant. In this research, TiO2 was prepared by solvothermal method used temperature variations of 150, 175, 200, and 225 ºC. The X-ray powder diffraction (XRD) data indicated that anatase phase of TiO2 was successfully obtained with I41/amd space group and as the synthesis temperature was increased, the crystallinity increases. The spectra infrared spectroscopy (IR) showed the broad peak situated at wavenumber 400-800 cm−1 which was assigned to the stretching Ti-O vibration. Raman spectra showed peaks at wavenumber 145, 197, 397, 516, and 639 cm−1 which were attributed to vibration modes of anatase. The scanning electron microscopy (SEM) image demonstrated the morphology particle has homogeneous distribution and irregular shape. Furthermore, Brunauer-Emmett-Teller (BET) specific surface area showed the CTAB-assisted TiO2 which was synthesized at 175 ºC has the highest surface area of 227.043 m2/g in this research among the others.
Fourier Transform Mid-Infrared (FTIR) Spectroscopy to Identify Tannin Compounds in The Panicle of Sorghum Mutant Lines
Authors: Wahyono Teguh , Astuti Dewi Apri , Gede Wiryawan I Komang , Sugoro Irawan , Jayanegara Anuraga 
Published: June 2019

Abstract
G5 and G8 are two sorghum mutant lines projected as sorghum varieties for ruminant’s feed. However, most of the sorghum panicles contains phenolic compounds, especially in the form of condensed tannins. The objective of this research was to investigate the phenolic and tannin compounds from the panicles of two sorghum mutant lines. The second objective was to identify tannin content by Fourier Transform Mid-Infrared (FTIR) Spectroscopy in the sorghum panicles. The two mutant lines were compared with Pahat variety. This research was arranged into a randomized complete block design with two factors. The first factor was the sorghum variety/mutant lines, whereas the second factor was the generative phase of harvesting time (flowering, soft dough and hard dough). The results showed that the panicles of G5 sorghum contained the lowest total phenol compounds (P<0.01). The average mean of G5 and G8 mutant lines produced lower total tannin content (27.3 and 18.2%, respectively) than Pahat variety (P<0.01). Generally, total phenol and total tannin in all variety/mutant lines increased with the increasing maturity stage (P<0.01). All the spectra of the sorghum panicle samples in different harvesting age investigated shared certain special similarities. A band due to alkane medium (C-H) stretch was observed at 2937-2854 cm−1. At 1521-1514 and 1446-1408 cm−1, a band due to the C-C aromatic compounds was observed. Based on those findings, it can be concluded that G5 and G8 mutant lines produced less total phenol and total tannin contents than Pahat variety. Meanwhile, FTIR could be used to describe the profile of tannin compounds qualitatively.
The Comparative Effect of Pomegranate Peel Extract and Dapagliflozin on Body Weight of Male Albino Wistar Rats with Type 2 Diabetes Mellitus
Authors: Ramadhani Devi Trisna , Rezkia Amradani Rafi Amanda , Ulfia Mila , Utami Suryaningtyas Margi , Indarto Dono , Wasita Brian 
Published: June 2019

Abstract
Sodium Glucose Co-Transporter 2 (SGLT2) inhibitor is the second line of type 2 diabetes mellitus (T2DM) treatment. From in silico and in vitro studies, ellagic acid in pomegranate fruits has a similar effect to the SGLT2 inhibitor. This study aimed to investigate the effect of pomegranate peel extract (PPE) on body weight (BW) of male rats with T2DM. Male Albino Wistar rats, which aged 8 weeks and weighed 150-200 g were induced with single dose of 230 mg/kgBW nicotinamide and 65 mg/kgBW streptozotocin intraperitoneally. The control group consisted of 14 rats with T2DM and randomly divided into the negative control (NC) and the positive control (PC) treated with 0.18 mg/kgBW/day dapaglifozin. Twenty one rats with T2DM were divided into 3 treatment groups (T1-3) and given with 50, 100, and 200 mg/kgBW/day PPE respectively for 14 days. Collected data were analyzed using ANOVA and LSD post hoc tests with p value <0.05. The mean fasting blood glucose levels of all rat groups were 262.04±4.24 mg/dL and the mean BW was 182.86±4.75 g after induction. After 7 days treatment, the mean BW in T1 (188.14±6.40), T2 (186.85±4.94) and T3 (189.85±5.95) groups were significantly higher than that of in the NC group (179.14±3.02) but only the mean BW in the T3 group significantly different from the PC group (184.00±6.40; p = 0.034). The same results were also observed in 14 days treatment. Administration of PPE is able to resume BW in rats model with T2DM, better than dapaglifozin.
Influence of Mixed Cultures of Saccharomyces cerevisiae and Acetobacter aceti for Hydrolysis of Tannins in the Cabbage Fermentation (Brassica oleracea L.var.capitata)
Authors: Salamah Alfi , Srihardyastutie Arie , Prasetyawan Sasangka , Safitri Anna 
Published: June 2019

Abstract
This study aims to hydrolysis tannins contained in cabbage (Brassica oleracea L.var.capitata) using a mixture of S.cerevisiae and A.aceti cultures with submerged fermentation method. Determination of the best conditions for tannins hydrolysis carried out by stratified optimization with variation of the volume mixed inculums (5%, 10%, 15% and 20% (v/v) in 100 mL distilled water) and pH values (4, 5, 6 and 7). Cabbage fermentation using a mixture of S. cerevisiae and A. aceti cultures with a ratio of 1:1 (v/v) and anaerobic incubation for 4 days at room temperature (25 ± 2 °C). The content of tannins before fermentation is 290.876 mg/100 g FW. After fermentation the tannins content decreased until the mixtures inoculum concentration was 15% and increased at 20%. The increase of tannins content due to the presence of high acetic acid on the fermentation medium so can inhibit tannase enzyme activity. The optimum volume of mixed inoculums at 15% produced tannins in the filtrate of 227.342 mg/100 mL and 193.619 mg/100 g FW biomass. Hydrolisis tannins can be carried out in acidic conditions. The optimum pH value at pH 4 produces tannins of 107.742 mg/100 g FW in biomass. Hydrolysis tannnins can be catalyzed by tannase produced from S.cerevisiae and acetic acid by A.aceti.
Effect of Support on the Hydrodeoxygenation of Phenol using Ni-based Metal Catalysts: Ni/SiO2, Ni/ZrO2, and Ni/Al2O3
Authors: Lestari Arda Rista , Suratmo  , Ulfa Siti Mariyah 
Published: June 2019

Abstract
Hydrodeoxygenation (HDO) reaction is a fundamental step for producing bio-oil from lignocellulosic biomass. One of the major components from biomass is lignin which can be hydrolysed into phenolic derivatives. Here, we reported the preparation of Ni-based metal catalysts with the variation of a metal oxide for HDO of phenol. The Ni loading for each metal oxides is 15% (w/w), supported on SiO2, ZrO2, and Al2O3. The XRD analysis showed that Ni metal was detected in the SiO2 support at 2θ = 44.26°, 51.72°, 76.5°; Ni in ZrO2 at 2θ = 44.55°, 51.9°, 76.4°; and Ni in Al2O3 at 2θ = 44.12°, 51.72°, and 76.78°. The catalytic test for HDO reaction was carried out in the autoclave oil batch reactor, heated for 2 hours at 200°C with H2 gas atmosphere. Based on GC-MS analysis, the reaction at 200°C usingNi-SiO2 gave the highest product conversion, that is 52.2% with the selective formation of 2-methyl-1-butanol (52.2%). On the other hand, the reaction using Ni/ZrO2 only produce 17.64% of the products with selective formation of cyclohexanone (35.35%). The result showed that products distribution is significantly affected by the type of the support.
Developing of Particulate Matter Filtering System for Motorcycle by Reusing Engine Thermal Energy Emission
Authors: Wardoyo Arinto Y. P. , Dharmawan Hari A. 
Published: June 2019

Abstract
Vehicle particulate matter emission in terms of PM0.1 and PM2.5 have significantly increased their role in morbidity and mortality. In this research, we have developed a new method for particle matter filtering system to reduce the particulate concentration by optimizing the released combustion energy in the exhaust system. We reused the released energy to reduce particle emission by placing a metal net made of different materials such as aluminum, brass, stainless steel, and nickel in the compartment of the exhaust system. The system generated a radiation energy used to reduce particle concentration. The filter efficiency depended on the filter net material. The filter net made of aluminum gave the highest efficiency in reducing particle emissions. The efficiency reached 55% for the PM2.5 and 46% for PM0.1.
Several Implementation Methods of Signal Processing Algorithm Based on FPGA
Authors: Xin Wang , Zhi-Qiang Hu , Da-Qing Jiang , Zhi-Xiao Sun , Yu Zhang , Yong Liu 
Published: June 2019

Abstract
Field Programmable Gate Array (FPGA) devices are widely used in the field of Digital Signal Processing (DSP), and the algorithm of DSP has been used in many fields such as speech signal processing, audio signal processing, image processing, information system, control system and so on. In the development and design of modern digital systems, the use of programmable logic devices is becoming more and more common. There are many ways to implement signal processing algorithm based on FPGA: the first one is to design with VHDL or Verilog HDL language; the second one is to use mature IP core encapsulated by FPGA company; the third one is to design with EDA tools such as MATLAB fdatool/Simulink/DSP Builder/Modelsim/Quartus II. Taking the digital filter as an example, this paper uses these three methods to realize the filtering algorithm, and introduces the detailed design steps and the final simulation verification.
Influence of Waveform Symmetry on Output Performance of Piezoelectric Inertia Actuator Controlled by Composite Method
Authors: Qi H Y 
Published: June 2019

Abstract
The waveform symmetry has a great influence on the piezoelectric inertia actuator. In this paper, the waveform symmetry based on the composite method is explained and its influence on the output performance is discussed in relation to four aspects: frequency characteristics, voltage characteristics, load capacity, driving capacity. The designed prototype is fabricated and a series of experiments are carried on. Experiments show the waveform symmetry based on the composite method is widened effectively relative to the traditional driving method. The high-speed of the actuator is obtained under 60% and 40%.The large-load is achieved under 90% and 10%. When the saw-tooth driving waveform voltage is 30 Vp-p for 800 Hz and a sinusoidal friction regulation waveform voltage is 6 Vp-p for 39 kHz, the maximum velocities in the forward and reverse direction are 1.48 mm/s and 1.39 mm/s. Meanwhile, the maximum vertical loads of the actuator are 540 g and 510 g. The actuator driven by different symmetrical composite waveforms will make it ideal for miniature devices.
DOZ047.06: The MicroRNA levels in exhaled breath condensate of patients with esophageal atresia and tracheoesophageal fistula
Authors: Soyer T , Birben E , Soyer Ö U , Türer Ö B , Tunçer F , Kahveci M , Tuğcu G D , Yalçın E , Doğru D , Özçelik U , Kiper N , Şekerel B , Tanyel F C 
Published: June 2019

Abstract

Aim
MicroRNAs (miRNAs) are noncoding RNAs that play a role in regulation of inflammation and cancer. It has been shown that miRNA-21 and 24 are downregulated in the exhaled breath condensate (EBC) of children with chronic inflammatory lung disease and asthma. A prospective study was performed to evaluate the miRNA-21 and 24 levels in the EBC of patients with esophageal atresia and tracheoesophageal fistula (EA-TEF).

Methods
Patients operated for EA-TEF were evaluated for age, sex, type of anomaly, surgical treatment, and respiratory problems. 500–1000 μl of EBC was obtained from all patients with Ecoscreen. miRNA-21 and 24 levels in EBC were analyzed with ELISA. The results of the study group were compared with a control group (CG) consisting of healthy children with no history of respiratory problems and allergy (n = 17). miRNA levels were compared with respiratory problems and gastroesophageal reflux (GER).

Results
Nineteen patients with EA-TEF with a mean age of 7.8 ± 3.2 years were enrolled in the study. The male–female ratio was 10:9. The mean age of the CG was 9.1 ± 3.6 years (P > 0.05). Distal fistula (78.9%) was the most common type of anomaly. 76.5% of cases required esophageal dilatations for strictures and 15.8% of them had fistula recurrence. Fifteen of the cases with EA were diagnosed as hyperreactive airway disease and require medical treatment. When miRNA levels were compared with CG (median = 0.68), EA cases had significantly decreased levels of miRNA-21 (median = 0.64, P < 0.05). There was no difference between groups for miRNA-24 levels (P > 0.05). The miRNA levels were also compared in patients with EA, according to positive pH testing for GER, use of proton pump inhibitor (PPI) treatment, and need for fundoplication. Patients with GER in pH test (median = 0.66) and fundoplication (median = 0.66) had increased levels of miRNA-21 than patients without reflux (median = 0.63) and surgical treatment (median = 0.64) (P < 0.05). The levels of miRNA-21 and 24 did not show any significant difference in patients with and without PPI treatment (P > 0.05).

Conclusion
The decreased levels of miRNA-21 in EBC suggest a hyperreactive airway problem in EA patients. Increased miRNA levels in EBC are associated with GER and its surgical treatment.
DOZ047.105: Minimally invasive surgical approach for posterior tracheobronchopexy to treat severe tracheobronchomalacia
Authors: Kamran A , Hamilton T E , Zendejas B , Jennings R W , Smithers C J 
Published: June 2019

Abstract

Purpose
Posterior tracheobronchopexy directly addresses membranous airway intrusion in severe tracheobronchomalacia (TBM). Our experience of posterior tracheobronchopexy through an open approach in a large series of patients has been previously reported by us. This study aimed to review lessons learned from our initial series of posterior tracheobronchopexy through a minimally invasive surgical approach.

Methods
A retrospective review of all patients with symptomatic TBM who underwent video-assisted or robot video-assisted thoracoscopic posterior tracheobronchopexy between October 2016 and January 2019 was carried out.

Results
Fourteen patients underwent video-assisted (n = 4) or robotic video-assisted (n = 10) thoracoscopic posterior tracheobronchopexy (age range: 8 months–19 years). Two patients had a history of esophageal atresia (type C) repair; none of the other patients had undergone prior operations. Two patients required open conversion to achieve the desired precision of suture placement. Operative times ranged from 4.5 to 15 hours, depending on the additional procedures performed. The intraoperative bronchoscopic evaluation demonstrated marked improvement in airway patency of all patients at the conclusion of each case. Patients were hospitalized 2 to 7 days, with 0 to 4 days for ICU observation. One patient with bronchopulmonary dysplasia and diffuse TBM, including segmental bronchi, required longer hospitalization and prolonged mechanical ventilation support. Follow-up after surgery ranged from 1 to 27 months. Three patients required subsequent anterior aortopexy and tracheopexy. In these three cases, dynamic tracheobronchoscopy showed that posterior tracheopexy remained intact; nonetheless, anterior airway support was still required to prevent dynamic anterior airway collapse.

Conclusions
The thoracoscopic approach for posterior tracheobronchopexy, while challenging, can be applied in children with severe TBM. As experience is gained, more complicated procedures and reoperative cases are possible. The simultaneous use of flexible bronchoscopy is mandatory to confirm precision by providing luminal visualization during suture placement. Thoracoscopic surgery with robotic assistance can eliminate some technical limitations of the video-assisted approach by providing an easier platform for very complicated suturing angles.
DOZ047.107: Increased quality of life burden related to obstructive sleep apnea in children with aerodigestive disease
Authors: Wootten C T , Lipscomb B , Acra S , Fazili M 
Published: June 2019

Abstract

Objective
The aim of this study was to determine the impact of sleep-disordered breathing on quality of life (QOL) in children with aerodigestive disease compared to children without aerodigestive disease.

Methods
Retrospective, IRB-approved, single-institution review of OSA-18 survey results administered to an unselected population of pediatric otolaryngology patients, some of whom had also been seen in the multidisciplinary aerodigestive clinic, was carried out.

Results
476 non-aerodigestive patients and 43 aerodigestive patients were compared using total OSA-18 score and the summed scores from the 5 domains that comprise the OSA-18: (1) sleep disturbance, (2) physical suffering, (3) emotional distress, (4) daytime problems, and (5) caregiver concern. Sleep-related QOL was significantly worse for children with aerodigestive disease compared to those without aerodigestive disease across domains of sleep disturbance (P = 0.011), physical suffering (P = 0.028), and caregiver concern (P = 0.016). Total OSA-18 scores were in the mild impact range, and they did not differ significantly between the two populations.

Conclusion
While the focus of many aerodigestive programs is on the pathophysiological relationship between the upper digestive tract, the laryngotracheal airway, and the lungs, the present study elucidates a significant impact of upper airway obstruction during sleep on the QOL of children with aerodigestive disease. In recognition of this impact, certain airway centers have added a multidisciplinary approach to upper airway obstruction to their aerodigestive treatment armamentarium. At the minimum, airway treatment centers should consider systematic screening of all children with aerodigestive disease for QOL burden related to OSA.
DOZ047.109: Impact of positive expiratory pressure breathing on gastroesophageal reflux: preliminary report in children with esophageal atresia and tracheoesophageal fistula and residual tracheomalacia
Authors: Porcaro F , Tambucci R , Petreschi F , Leone P , Malamisura M , Caldaro T , De Angelis P , Cutrera R 
Published: June 2019

Abstract

Introduction
The usefulness of positive expiratory pressure (PEP) through a PEP valve to enhance expiratory flow and improve cough efficiency is well known in children with tracheoesophageal fistula (TEF) and residual tracheomalacia. Gastroesophageal reflux (GER) is one of the most frequent complications encountered in patients with repaired esophageal atresia (EA) ± TEF. The impact of airway clearance techniques with a PEP valve on GER is not well defined in this group of patients. The aim of this prospective study was to determine the effects of PEP chest physiotherapy on GER burden measured by multichannel intraluminal impedance and pH monitoring (MII-pH) in EA/TEF children. Since the study is still ongoing, preliminary results are hereby presented.

Methods
EA/TEF patients with tracheomalacia received three 20-min sessions of PEP chest therapy during the 24-hour MII-pH monitoring performed as a routine care. All children were off acid suppression therapy. The PEP session, performed after a 3-hour fasting period, consisted of 10 cycles lasting 1 minute of breathing with a PEP valve, followed by the forced expiratory technique and coughing. Esophageal acid exposure time (AET) and number of reflux episodes (RE) during each PEP session were measured as primary outcomes. Baseline impedance (BI) was also evaluated. MII-pH was defined abnormal if AET was >7% and/or the total RE was >70.

Results
From January and December 2018, 5 consecutive male EA/TEF children (mean age 8.5 years; range 3–14 years) were enrolled. All of them showed low distal BI (1040 ± 143.2) and normal MII-pH findings (AET: 1.8 ± 2.9%; number of RE: 20.2 ± 9.0). Over the period of the PEP sessions, no significant changes in AET (0.0 ± 0.0), RE (0.6 ± 0.5), and BI were detected compared with the background monitoring.

Conclusions
Although the limited number of participants prevents any definitive conclusions, our preliminary results indicate that PEP chest physiotherapy does not exacerbate GER in EA/TEF children. Continuation of the study across a larger sample of EA/TEF patients is needed to better define the effects of this simple chest physiotherapy technique on GER burden.
DOZ047.117: Complex tracheostoma reconstruction using pectoralis major myocutaneous flap
Authors: Valika T , Ida J , Thompson D M 
Published: June 2019

Abstract

Objective
This study aimed to describe complex tracheostoma reconstructions utilizing a pectoralis major myocutaneous flap.

Results
We present the case of two children who required extensive tracheostoma reconstructions. Both patients had chronic tracheostomies. The first child, aged 4, had underlying neuromuscular disorder. Her neck anatomy resulted in the formation of a keyhole stoma with erosion of the underlying cricoid cartilage. She underwent tracheostoma reconstruction using costal cartilage graft and use of a pectoralis major myocutaneous flap to recreate the superior aspect of the stoma. The second child, aged 5, had long-standing trach and underwent laryngotracheal reconstruction. In the postoperative setting, the patient developed a wound infection that resulted in breakdown of the overlying wound. A pectoralis major myocutaneous flap was required in the defect to recreate the wound bed. Both patients had successful wound bed creation and required no further procedures.

Conclusion
Chronic tracheostomies can result in superficial skin or tracheal breakdown, resulting in tracheostomy complications. Tracheostoma reconstruction is classically managed with debridement and local tissue flaps with use of either overlying skin or surrounding musculature. In patients with chronic wound breakdown, local tissue reconstruction can be challenging due to the fragility of the surrounding tissue. Use of virgin tissue outside the wound bed provides the best chance of recovery. The pectoralis major myocutaneous flap has the ability to be the ideal tissue source for extensive tracheostoma reconstruction. The flap is the workhorse of many head and neck oncologic procedures. The flap can provide adequate bulk from muscle and fat, overlying skin, and is within the surgical field to provide a robust blood supply. We advocate for the role of this flap in use with patients with chronic wound issues, poor wound healing, and failed prior stoma reconstructions.