bluuebunny/crossref_metadata_2025_split huggingface dataset:
KEHILANGAN H2O SELAMA REAKSI PELINDIAN MINERAL ZIRCON DENGAN NaOH DI DALAM FURNACE
Authors: Budiharjo Triyono , Mutawali Muzakky Akhmad 
Published: May 2019

AbstrakKEHILANGAN H2O SELAMA REAKSI PELINDIAN MINERAL ZIRCON DENGAN NaOH DI DALAM FURNACE. Telah dilakukan prediksi jumlah kehilangan H2O selama proses peleburan mineral zirkon dengan NaOH di dalam furnace. Proses awal pemurnian zirkonium dimulai dari pelindian mineral zirkon dengan NaOH. Selama proses peleburan akan dikeluarkan H2O yang diperkirakan akan membawa Rn-222 dan Rn-220 yang berbahaya bagi pekerja radiasi. Maka tujuan dari pelitian ini adalah melakukan prediksi jumlah kehilangan H2O pada reaksi pelindian mineral zirkon dengan NaOH di dalam furnace dan keluar ke udara. Kehilangan H2O dihitung berdasarkan mol sebelum reaksi peleburan dikurangi dengan sesudah reaksi peleburan. Hasil pengamatan menunjukkan bahwa semakin tinggi temperatur dan lama waktu kontak, kehilangan mole H2O akan semakin besar. Besarnya kehilangan mole H2O akan dipengaruhi oleh mole rasio ZrSiO4/NaOH. Kecuali pada mol rasio ZrSiO4/NaOH (1:4), mol kehilangan H2O berharga sama dengan mol rasio ZrSiO4/NaOH (1:2). Kehilangan mol H2O dicapai pada mol rasio ZrSiO4/NaOH (1:8), pada temperatur 950 ˚C dan waktu kontak 60 menit sebesar 0,024 mole/gr. Pada kondisi tersebut sisa fase kristal ZrSiO4 tidak terbentuk, tetapi sampel mengandung sisa NaOH yang tidak bereaksi dan bersifat pasta.
CD32-RNA Co-localizes with HIV-RNA in CD3+ Cells Found within Gut Tissues from Viremic and ART-Suppressed Individuals
Authors: Vasquez Joshua Jorge , Aguilar-Rodriguez Brandon L. , Rodriguez Leonardo , Hogan Louise E. , Somsouk Ma , McCune Joseph M. , Deeks Steven G. , Laszik Zoltan G. , Hunt Peter W. , Henrich Timothy J. 
Published: May 2019

Background: Identifying biomarkers for cells harboring replication-competent HIV is a major research priority. Recently, there have been mixed reports addressing the possibility that CD32-expressing T-cells are enriched for HIV. There is growing evidence that CD32 expression increases with cellular activation that may be related to, but not necessarily specific for, infection with HIV. However, the relationship of CD32 expression to HIV-infection in subtypes of tissue-resident leukocytes is unclear. Methods: First, we used duplex chromogenic in situ hybridization to identify cells actively transcribing RNA for both CD32 and HIV on human gut tissues. Then we performed multiplexed immunofluorescence and in situ hybridization (mIFISH) on sections from the same tissues to determine the phenotype of individual cells co-expressing HIV-RNA and CD32-RNA. Results: HIV-RNA+ cells were more abundant in tissues from viremic individuals compared to those on suppressive anti-retroviral therapy (ART). However, staining by both methods indicated that a higher proportion of HIV-RNA+ cells co-expressed CD32-RNA in ART-suppressed compared to viremic individuals. The majority of HIV-RNA+ cells were CD3+.Conclusions: Our data suggest that the transcription of CD32-RNA is correlated with HIV transcriptional activity in CD3+ cells found within human gut tissue. Whether or not up-regulation of CD32-RNA is a direct result of HIV reactivation or more global T cell activation remains unclear.
Geographic Information System for Mapping the Potency of Batik Industry Centre
Authors: Taryadi Taryadi , Binabar Sattriedi Wahyu , Siregar Dicke JSH 
Published: May 2019

Background: As one of batik producer city in Indonesia, Pekalongan city needs medium and infrastructure that able to provide the information needed by either the local government or the society. The need about information of Batik city center in Pekalongan will provide the information about the batik center for the local government in the potency, obstacle and the needs of Small and Medium Batik Enterprises Centre to improve the Batik Production.Objective: The research is aimed at mapping the potency of batik center in Pekalongan city by implementing Geographic Information System Technology. The information about batik center in Pekalongan city needs to be maintained. The maintenance in information field is needed upon the batik center in Pekalongan.Methods: The method used in mapping the batik potency in Pekalongan city is the Geographic Information System (GIS) by providing the information based on a spatial data. Whereas the waterfall system development is used in developing the GIS.Results: The research resulted the application in mapping the batik center with GIS based that provide reference to the related parties about information and planning as well as investment in batik business.Conclusion: The system is able to provide the information needed by users, such as business mapping, the mapping about the amount of business in one area, the batik potency in each district that is figured for mapping location.
Academic Decision Support System for Choosing Information Systems Sub Majors Programs using Decision Tree Algorithm
Authors: Fiarni Cut , Sipayung Evasaria M. , Tumundo Prischilia B.T. 
Published: May 2019

Background: Educational data mining is an emerging trend, especially in today Big Data Era. Numerous method and technique already been implemented in order to improve its process to gain better understanding of the educational process and to extract knowledge from various related data, but the implementation of these methods into Decision support system (DSS) application still limited, especially regarding help to choose university sub majors .Objective: To design an academic decision support system (DSS) by adopting Theory of Reasoned Action (TRA) concept and using Data Mining as a factor analytic apporach to extract rules for its knowledge model.Methods: We implemented factor analysis method and decision tree method of C.45 to produce rules of the impact course of the sub- majors and the job interest as the basic rules of the DSS.Results: The proposed academic decision support system able to give sub majors recommendations in accordance with student interest and competence, with 79.03% of precision and 61.11% of recall. Moreover, the system also has a dashboard feature that shows the information about the statistic of students in each sub majors.Conclusion: C.45 algorithm and factor analysis are suitable to build a knowledge model for Academic Decision Support System for Choosing Information System Sub Majors Bachelor Programs. This system could also help the academic adviser on monitoring and make decision accordance with that academic information
An Empirical Oil, Steam, and Produced-Water Forecasting Model for Steam-Assisted Gravity Drainage With Linear Steam-Chamber Geometry
Authors: Dixon David , Nguyen Anthony 
Published: May 2019

Summary
Presented here is a steam–assisted–gravity–drainage (SAGD) forecasting technique for oil and water production and steam injection based on linear steam–chamber geometry and an empirical form for the progression of the steam/oil interface with time. The oil forecast model generates full–cycle SAGD production profiles using three empirical inputs (the initial plateau oil rate qo,si, an exponent n, and the rising–phase–chamber angle θ) and volumetric parameters (well length, pay thickness, porosity, half–well spacing, and initial and residual oil saturation). Steam and produced–water forecasts are derived analytically using the resulting steam–chamber geometry and the heat required for the fluids, rock, and overburden.
Peak rate is a direct input in this methodology, and as a result only volumetric and some thermodynamic parameters are required, but not fluid or transmissibility inputs, such as viscosity and permeability. This allows for direct use of commercial SAGD production data in the forecasting process. The model predictions are validated at a high level with field data from Devon Canada Corporation's Jackfish SAGD project and numerical simulation.
Effect of heat transfer optimization on brake noise characteristics of automotive disc brake
Authors: Zhang Sen , Zhang Jian 
Published: May 2019

Heat effect is one of the most important factors affecting the brake noise level. The finite element model for transient heat transfer analysis of disc brake is established based on heat transfer control equation and heat dissipation boundary conditions of dynamic convection. According to the NVH test and modal calculation, the brake noise characteristics are tested and analyzed. Meanwhile, the heat transfer simulation is verified and shows high accuracy. The discrete data for the response surface function are obtained by the Central Composite Design method with the peak temperature and mass as the target variables. The error of regression function is judged by fitting decision coefficient, correcting decision coefficient and root mean square error. By the optimizing mathematical model, the brake disc temperature peak can be greatly reduced and the heat transfer ability is obviously optimized without mass increasing, the time with temperature above 120 °C can be reduced by 46 %. Through the comparison of brake noise level before and after optimization, it can be known that the noise level can be significantly decreased after structural optimization, except the first order resonance frequency. The optimization result has good social and economic value.
Consistency in efficiency benchmarking: urban water utility regulation with performance improvement
Authors: Gidion Dickson K. , Hong Jin , Hou Bojun , Shillamkwese Samson S. , Adams Magdalene Z. A. , Khoveyni Mohammad 
Published: May 2019

Abstract
For more than 20 years, urban water utility (UWU) regulators have been using key performance indicators to monitor water supply services. In many circumstances, the empirical methods used to rank UWU performance are different between regulators of different countries, although the benchmarking basics are the same. The diversity of benchmarking methods limits the sharing of management strategies between countries. Using data envelopment analysis (DEA), this paper presents a consistency analysis of the performance score method used by the Energy and Water Utilities Regulatory Authorities of Tanzania. DEA is appropriate for this purpose because of its demonstrated flexibility in applications with diverse production environments. Thus, this paper proposes methods for benchmarking strategies to assess UWU efficiency- and management-specific goals within and between countries. The assessment shows that network DEA (NDEA) outperforms empirical methods; regulators using the proposed NDEA technique will benchmark UWU efficiency under a yardstick competition regime and, at the same time, identify the most efficient and weak UWUs using pure variable values. This innovation monitors UWU performance progress and promotes sharing of quality management strategies between UWUs and countries.
Factors Related to Nursing Students’ Career Preparation Activities
Authors: Kim Hyun 
Published: May 2019

Introduction:
The purpose of this study was to identify career preparation activities among nursing students.

Methods:
The study was designed as a descriptive study. Typically, 353 nursing students in the second and third year of the program who were living in D city were included in the study.

Results:
There were statistically significant differences in career preparation activities with respect to self-reported career aptitude, satisfaction with the nursing school, university life satisfaction, and motivation to study nursing. The variables that affected the students’ career preparation activities were identified as career satisfaction and career search efficacy.

Conclusion:
Based on the outcomes of the present study, it is considered necessary to develop customized programs to identify the obstacles confronted by students in the process of career preparation activities and ways to overcome them.
Microwave Facilitated Green Synthesis and Characterization of Acrylamide Grafted Copolymer of Kheri (Acacia chundra) Gum Polysaccharide
Authors: Malviya Rishabha , Sharma Pramod Kumar , Dubey Susheel Kumar 
Published: May 2019

Objective:
In the present study, an attempt was made to synthesize biodegradable, hemocompatible,
antimicrobial and pH-responsive hydrogel.

Methods:
Microwave facilitated green synthesis was carried out for the grafting of acrylamide over
Kheri Gum Polysaccharide (KGP) backbone. The grafted hydrogel was characterized in terms of
FTIR spectra, 1H NMR spectra, SEM image, contact angle, chemical resistant, biodegradation, blood
clotting time, thrombogenicity, hemolytic activity and cytotoxic effect.

Results:
More swelling was observed by graft copolymers (KGP-g-Am) in all the solvent systems
such as double distilled water, 1 N NaOH and 0.1 N HCl than KGP. Graft copolymers showed more
swelling in 1 N NaOH than in 0.1 N HCl, followed by distilled water. Blood clotting studies showed
longer clotting time for KGP-g-Am as compared to the uncoated glass surface and KGP coated glass
surface. Results obtained after molecular docking predict that TLR-4 receptors are considerably
more liable than TLR-2 receptors for antimicrobial activity of both KGP-g-Am and KGP. Experimental
data evidently explains the better antimicrobial efficacy of KGP-g-Am (K1) against Escherichia
coli and Aspergillus niger than KGP. In molecular docking studies, KGP-g-Am showed prominent
anticancer activity than KGP at the protease-activated receptor (PAR1). Results of in vitro cytotoxic
activity against breast cancer cell lines (MCF 7) predict better control over cell growth by
KGP-g-Am (K1) as compared to KGP.

Conclusion:
It can be elicited from the data that microwave assisted grafting over KGP backbone
modulates and introduces prerequisite properties within the polymer and can be utilized for various
biomedical, pharmaceutical and cosmeceutical applications.
Microwave-assisted Synthesis of Water-soluble Fluorescent Carbon Nanoparticles as an Effective Crosslinker to Control the Water Absorption and Moisture Transmission Behavior of Chitosan/Carbon Nanocomposite Film
Authors: Bajpai S.K. , Kandra R. , Namdeo M. 
Published: May 2019

Background:
Carbon dots are a new class of biomaterials that have found a wide range of biomedical
applications like cell imaging, targeted delivery, and bio-sensing. A review of the literature reveals
that there are fewer reports on nanocomposites prepared by entrapment of carbon dots into polymers.

Objective:
A tetra carboxylic acid compound, can conveniently be used as a precursor to synthesize
negatively charged carbon dots.

Methods:
Carbon dots have been prepared by microwave induced treatment of BTCA so as to have
carboxylic groups onto the surface of the carbon dots. Their size distribution was determined by TEM
analysis. These CNPs are loaded into chitosan films by solvent casting approach. The water absorption
behavior of chitosan/carbon dots nanocomposite films is investigated by gravimetric method.

Results:
The size of the CNPs was found to be in the range of 50 to 60 nm with almost spherical geometry.
Their zeta potential was found to be -20.2 mV, thus indicating the presence of negative charges
on their surface. The contact angle measurements revealed that wettability of plain chitosan film reduced
due to the addition of carbon dots. It was found that impregnation of carbon nanoparticles
(CNPs) into chitosan film resulted in an almost seven-fold decrease in the water absorption capacity of
the film. The equilibrium moisture uptake (EMU) data of plain chitosan and CNPs-loaded chitosan
films were interpreted by GAB isotherm and related parameters were also evaluated.

Conclusion:
It may be concluded from the above study that BTCA, a tetra carboxylic acid compound,
can conveniently be used as a precursor to synthesize negatively charged carbon dots. These carbon
dots, when loaded into plain chitosan film, cause an effective crosslinking within the chitosan film
matrix. The CNPs-loaded films produce green fluorescence when exposed to UV light.
EFFECT OF ACTINOMYCETES ON GROWTH OF OCIMUM SANCTUM
Authors: KUMARI CHAMPA , A. UMADEVI , KUMAR P. AJITH 
Published: May 2019

Objective: The study was aimed to isolate and identify Actinomycetes from rhizosphere soil of Malik deenar college of pharmacy, Kasaragod, Kerala, and to screen the plant growth promoting the activity of isolated actinomycetes on Ocimum sanctum.
Methods: The Actinomycetes were isolated from rhizosphere region soil by serial dilution and pour plating method. Then they were identified to a generic level based on morphological characters, and biochemical characters. Plant growth promoting activity was screened by placing 3 sets of Ocimum sanctum seedlings in different pots and the shoot length was measured after 10 d and compared with control.
Results: 19 different types of isolates were chosen based on their morphological characteristics and used for assessments of plant growth promoting activity. Among the 19 isolates, 17 isolates were identified as Streptomyces spp. And 2 were belongs to Nocardia spp. The actinomycetes isolates which belong to Streptomyces spp were shown plant growth promoting activity.
Conclusion: The result of this study revealed that the rhizosphere soil has different types of actinomycetes, among these Streptomyces spp. are more abundant and common. These Streptomyces spp. have predominant activity on plant growth promotion with respect to Ocimum sanctum.
THE CURATIVE EFFECT OF METHYLSULFONYLMETHANE ON AN EXPERIMENTAL MODEL OF ULCERATIVE COLITIS IN RATS
Authors: LAHAM SHAZA ANWAR AL 
Published: May 2019

Objective: Ulcerative colitis is a chronic inflammatory bowel disease of unknown etiology that affects the mucosa and submucosa of the colon and rectum. It is associated with oxidative stress, neutrophil infiltration and production of inflammatory mediators. In the present study, the anti-inflammatory and antioxidant effects of Methylsulfonylmethane (MSM) in treatment the acetic acid (A) induced model for UC in rats were examined.
Methods: Ulcerative colitis was induced by intra colonic administration of 2 ml of 4% acetic acid in adult male Wistar rats which were divided into 3 groups: normal control (N), acetic acid (A) control, and MSM (1000 mg/kg). Rats received treatment for six consecutive days. On day 7, the rats were sacrificed, the colon was removed, the body weight, colon weight/length ratio, tissue glutathione (GSH) concentration, and macroscopic evaluations, were performed.
Results: The colon weight/length ratio was decreased significantly (????<0.05). The glutathione (GSH) concentration was increased significantly (????<0.05). The macroscopic parameters were decreased, but it didn’t reduce significantly in the MSM treated groups compared to group A. Contrariwise the parameters of group A. The levels of body weight were increased, and colon weight/length ratio was decreased significantly (????<0.05). The glutathione (GSH) concentration was increased significantly (????<0.05). The macroscopic parameters were decreased significantly in the MSM treated group, compared to the acetic acid-treated group.
Conclusions: Methylsulfonylmethane is an effective, safety natural product with little side effects, has a good curative effect in a dose (1000 mg/kg) on experimental Ulcerative colitis induced by acetic acid.
Connecting the Urological Community: The #UroSoMe Experience
Authors: Gudaru Kalyan , Blanco Leonardo Tortolero , Castellani Daniele , Santamaria Hegel Trujillo , Pelayo-Nieto Marcela , Linden-Castro Edgar , Wroclawski Marcelo Langer , Bellote Mateus Cosentino , Inarritu Jon Mikel , Da Silva Rodrigo Donalisio , Gauhar Vineet , Adwin Zainal , Yuen-Chun Teoh Jeremy 
Published: May 2019

Background and Objectives There is an increasing use of social media amongst the urological community. However, it is difficult to identify urological data on various social media platforms in an efficient manner. We proposed a hashtag, #UroSoMe, to be used when posting urology-related content in the social media platforms. The objectives of this article are to describe how #UroSoMe was developed, and to report the data of the first month of #UroSoMe. Material and Methods The hashtag, #UroSoMe, was introduced to the urological community. The #UroSoMe working group was formed, and the members actively invited and encouraged people to use the hashtag #UroSoMe when posting urology-related contents. After the #UroSoMe (@so_uro) platform on twitter had grown to more than 300 users, the first live event of online case discussion, i.e. #LiveCaseDiscussions, was conducted. A prospective observational study of the hashtag #UroSoMe Twitter activity during the first month of its usage from 14 December 2018 to 13 January 2019 was evaluated. Outcome measures included number of users, number of tweets, user location, top tweeters, top hashtags used and interactions. Analysis was performed using NodeXL (Social Media Research Foundation; California, USA; https://www.smrfoundation.org/nodexl/), Symplur (https://www.symplur.com) and Twitonomy (https://www.twitonomy.com). Results The first month of #UroSoMe activity documented 1373 tweets/retweets by 1008 tweeters with 17698 mentions and 1003 replies. The #LiveCaseDiscussions was able to achieve a potential reach of 2,033,352 Twitter users. The top tweets mainly included cases presented by #UroSoMe working group members during #LiveCaseDiscussions. The twitonomy map showed participation from 214 geographical locations. The major groups of participants using the hashtag #UroSoMe were ‘Researcher/Academic’ and ‘Doctor’. The twitter account of #UroSoMe (@so_uro) has now grown to more than 1000 followers. Conclusions Social media is an excellent platform for interaction amongst the urological community. The results demonstrated that #UroSoMe was able to achieve wide spread engagement from all over the world.
THE EFFECT OF TEACHING MEDIA ON STUDENTS’ ACHIEVEMENT IN SPEAKING
Authors: Sidabutar Resti Santa Mona 
Published: May 2019

This research concerned on The Effect of Teaching Media on Students’ Achievement in Speaking. This study used the experimental design. The population of the study was the students of SMP Negeri 1 Air Putih. There were twenty students from five classes as the sample of the research. This study was conducted with two groups namely experimental and control group. The experimental group was taught by applying English comics while control group was taught with written texts. The instrument of collecting the data was used tape recorder. The data was analyzed by using t-test formula. The calculation shows that t-observed (2.378) is higher than t-table (2.086) at the level of significance 0.05. Therefore, the null hypothesis is rejected and alternative hypothesis is accepted. It means that teaching speaking by applying English comics as the media has more significant effects than without using English comics. Keywords: English Comics, Story Retelling, Students’ Achievement in Speaking, Experimental Research