bluuebunny/crossref_metadata_2025_split huggingface dataset:
FILTER SITUS KONTEN NEGATIF PADA PROXY SERVER MENGGUNAKAN LOGIKA FUZZY
Authors: Putra Arief Bramanto W. , Gaffar A.F. Onnilita , Salman Muhammad 
Published: April 2019

berdampak pada pengguna dapat dengan bebas mengakses konten yang bersifat negatif. Proxy yang bertugas sebagai perantara antara client dengan server memiliki fungsi sebagai cache dan filter yang mampu berperan sebagai pembatasan akses konten negatif sehingga terciptanya penggunaan internet secara sehat. Diawali dengan melakukan percobaan komunikasi antara server dan client dengan menggunakan socket programming, kemudian memperoleh data berupa alamat dari sebuah situs dengan menggunakan metode Term Frequency menghasilkan 100 data situs yang terindikasi memiliki konten negatif yang selanjutnya disebut data log.
Pada proses ini diperoleh 8 prase yang mengandung konten dewasa, frekuensi kemunculan terkecil sejumlah 4 kali dan frekuensi kemunculan terbesar sejumlah 23 kali, dengan total keseluruhan frekuensi sejumlah 105 prase. Proses pengujian menggunakan 20 data alamat situs yang memiliki variasi prase yang selanjutnya dengan menggunakan logika fuzzy untuk melakukan metode Invers Document Frequency dapat diperoleh hasil situs yang berada didalam kategori tidak negatif sejumlah 13 situs dan terindikasi memiliki konten negatif sejumlah 7 situs
PERAMALAN KUNJUNGAN WISATAWAN DI OBYEK WISATA BEDUGUL MENGGUNAKAN ALGORITMA FUZZY TIME SERIES
Authors: Purnama I Nyoman , Ardyanti Anak Agung Ayu Putri 
Published: April 2019

Bali merupakan salah satu primadona wisata di Indonesia. Hal ini disebabkan Bali memiliki budaya, adat istiadat dan kesenian yang beraneka ragam. Tabanan merupakan salah satu kabupaten di Bali yang memiliki ikon daya Tarik wisata yang cukup menarik. Kabupaten Tabanan sering disebut miniaturnya Bali. Karena karakter provinsi Bali secara umum terdapat di Tabanan. Adapun beberapa daya Tarik wisata yang ada di kabupaten Tabanan yakni Danau Beratan, Bedugul, Jatiluwih, Batukaru dan Bedugul. Bedugul merupakan salah satu ikon pariwisata yang banyak dikunjungi oleh wisatawan domestik Kunjungan wisatawan domestik ke obyek wisata Bedugul mengalami jumlah kunjungan yang tidak menentu setiap tahunnya.
Pada penelitian ini dikembangkan sistem peramalan kunjungan wisatawan menggunakan Fuzzy time series Ruey Chyn Tsaur. Data kunjungan ke objek wisata Bedugul akan dikumpulkan dari Badan Pusat Statistik dari tahun 2003- 2014. Fuzzy Time series merupakan konsep baru yang dikenal dengan istilah kecerdasan buatan yang digunakan untuk meramalkan masalah dimana data historis tersebut dibentuk dalam nilai-nilai linguistik dan menghasilkan peramalan yang lebih akurat. Dari hasil penelitian didapatkan nilai AFER sebersar 1.33 persen.
Marking frequency during intraspecific socialization sessions is related to urinary cortisol levels in shelter dogs
Authors: Alberghina Daniela , Pumilia Gina , Raffo Pierluigi , Distefano Giuseppe , Piccione Giuseppe , Panzera Michele 
Published: April 2019

The aim of this study was to determine whether behavioural indicators such as marking frequency and whether cortisol/creatinine ratio (C/Cr) are influenced by three socialization sessions. Six adult shelter dogs were selected: Group 1 (n.3) with adequate social experience and Group 2 with behavioural problems of aggression against humans (n.2) and excessive fear response towards conspecifics (n.1). Spontaneous urine samples were collected for C/Cr after socialization sessions. C/Cr was positively correlated with urinary marking frequency (P<0.01) and negatively with faecal marking frequency (P<0.05). The correlation with urinary marking could be related to increased release of aldosterone under ACTH stimulus or to chemical information that dogs are in a stressful situation. The negative correlation with frequency of faecal marking could be related to inhibition of act in a novel situation as stress effect. Non-invasive monitoring for detection of cortisol could be useful to assess canine behaviour modulation following intraspecific socialization sessions.
Exclusive Breastfeeding Rates and Factors Associated with Exclusive Breastfeeding Practices in Northern Tanzania: Measurement using Two Different Methodologies—24 Hours Recall and Recall Since Birth
Authors: Hussein Tamara H. , Mgongo Melina , Katanga Johnson , Uriyo Jacqueline G. , Damian Damian J. , Stray-Pedersen Babill , Msuya Sia E. , Wandel Margareta 
Published: April 2019

Background: Exclusive breastfeeding (EBF) has many benefits to the child from mental to physical growth and development; however, methods of measuring EBF have raised a number of policy and programmatic questions. This study assesses EBF rates and factors associated with EBF practices in Northern Tanzania using two different methodologies, namely, the 24-hours recall and recall-since-birth.
Methods:
A cohort study was conducted from October 2013 to December 2015 among mother-infants’ pairs. Mothers with child delivery information (N=430) were followed and included in the analyses. We enrolled pregnant women who were in their third trimesters and interviewed them with the help of questionnaires at enrollment, delivery, 7 days and thereafter monthly up to nine months after delivery. At each visit after delivery, information on breastfeeding using the two methods (24 hours recall and recall-since-birth) was collected.
Results: The prevalence of EBF dropped from one month to six months when using both the 24 hours recall and the recall since birth methods, but at different rates.At six months, 24.2% of the mothers practiced EBF when measured with the recall since birth method, compared to 38.8% when measured with the 24 hour recall. Predictors of EBF were also different.When using the recall since birth method, women who had received counseling on infant feeding had increased odds of practicing EBF compared to those who did not receive counseling, [AOR=2.3; 95% CI (1.2, 3.7)]. When using 24 hours recall, women who were unemployed had increased odds of practicing EBF compared to those who were employed [AOR=1.5;95% CI(1.1,2.5)], and women aged 35 - 49 years had decreased odds of practicing EBF compared to younger women [AOR=0.28; 95% CI(0.1,0.7)].
Conclusions and Global Health Implications: The two methods for EBF give substantially different results, both in the prevalence of EBF and factors associated with EBF. The higher EBF obtained with 24 hours recall represents an overestimation and thereby an overly positive picture of the situation.
Key words: • Breastfeeding • Exclusive Breastfeeding • Factors • Rates • 24 Hours • Recall Since Birth • Tanzania

Copyright © 2019 Hussein et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
In situ natural radioactivity and radiological hazard assessments of granite gneiss outcrops in parts of the Southwestern Basement Complex of Nigeria
Authors: AKİNGBOYE Adedibu Sunny , ADEMİLA Omowumi 
Published: April 2019

Radioactive
emission (gamma ray) emanating from rock materials constitutes threats to humans
and their environment. Hence, the natural radioactivity and radiological hazard
indices of some granite gneiss outcrops
with their residual soils from two different localities within the Southwestern
Basement Complex of Nigeria were assessed using Gamma-ray spectrometry. The
study aimed at determining the natural radiation levels of granite gneissic
rocks and associated radiological threats to people living in the study area
from gamma ray exposure. Data were collected along six geophysical traverses of
200 m each with station spacing of 5 m using the portable hand-held Gamma-ray
Spectrometer. The results of weighted mean values of the elemental and activity
concentrations for 40K, 238U, and 232Th are
2.00 ± 1.43%, 3.13 ± 0.90 ppm, 12.32 ± 4.99 ppm and 629.28 ± 447.29, 38.58 ±
11.02, 49.96 ± 20.23

respectively. The obtained mean concentration
ratios of 1.32 for U/Th and 2.14 for Th/U were higher than 0.26 and lower than
3.5 global standard ratios respectively. The increase in activity
concentrations and concentration ratio may have suggested the enrichment of
radioactive minerals in the granite gneissic rocks. The annual outdoor and
indoor effective doses of gamma ray exposure for people living in the study
area were below the world permissible standard of 1

,
thus, the area is radiologically safe.
However, increase in
estimated mean of AGDE and ELCR; 525.620

and 1.273

above the world permissible standards of 300

and

respectively
does not translate to significant radiological threats. Therefore, control
measure by constant monitoring of the radioactivity levels of the area and
rocks should be practiced.
Influence of Stalk Residue Retention and Fertilization on the Rhizospheric Effect with Drip‐Irrigated Cotton
Authors: Zhang Guojuan , Zhang Wangfeng , Pu Xiaozhen , Zhang Pengpeng , Ou Yanglong 
Published: April 2019

Core Ideas
Stalk residue retention and fertilizer increased organic carbon, total nitrogen, and microbial biomass carbon.
Nitrogen‐phosphorus‐potassium plus poultry manure had the highest NO3–‐N and available nitrogen contents.
Stalk residue retention plus fertilization had positive rhizospheric effect on soil organic carbon and NO3–‐N.
Stalk residue retention plus fertilization had negative rhizospheric effect on total nitrogen and NH4+‐N.
Stalk residue retention plus fertilization had no net rhizospheric effect on pH and microbial biomass carbon.
ABSTRACTBy using less chemical fertilizer to produce cotton (Gossypium hirsutum L.), farmers could reduce input costs, increase efficiency, and protect the environment. The objective of this study was to determine the effects of stalk residue management and fertilizer application on the rhizospheric and bulk soil properties. The split‐plot design included two main plot treatments (stalk residue removal and stalk residue retention) and four subplot fertilizer treatments (no fertilizer; N, P, and K fertilizer; poultry manure; and NPK plus poultry manure). Results showed that stalk residue retention increased soil pH, whereas fertilization reduced it. Stalk residue retention and fertilizer application both increased organic C, total N, and microbial biomass C. The NPK plus poultry manure treatment had the highest nitrate (NO3–‐N) and available N contents. Stalk residue retention had negative rhizospheric effect on soil pH, total N, and ammonium (NH4+‐N) but positive rhizospheric effect on soil organic C, microbial biomass C, and NO3–‐N. The NPK plus poultry manure treatment had positive rhizospheric effect on soil pH, organic C, and NO3–‐N but negative rhizospheric effect on total soil N, microbial biomass C and NH4+‐N. Overall, stalk residue retention plus fertilization had positive rhizospheric effect on soil organic C and NO3–‐N, negative rhizospheric effect on total N and NH4+‐N, and no net rhizospheric effect on soil pH and microbial biomass C. Stalk residue retention improved soil quality and increased soil organic C and available N. Stalk residue retention plus NPK fertilizer and poultry manure can significantly increase soil organic C and active C components, thus ensuring high productivity.
Determination of the oxidation state of iron in Mid-Ocean Ridge basalt glasses by Raman spectroscopy
Authors: Le Losq Charles , Berry Andrew J. , Kendrick Mark A. , Neuville Daniel R. , O'Neill Hugh St. C. 
Published: April 2019

AbstractA series of synthetic Mid-Ocean Ridge Basalt (MORB) glasses with Fe3+/FeTOT from 0 to 1, determined previously by Mössbauer spectroscopy, were used to test methods for quantifying Fe3+/FeTOT by Raman spectroscopy. Six numerical data reduction methods were investigated, based on conventional approaches as well as supervised and unsupervised machine learning algorithms. For the set of MORB glass standards, with fixed composition, the precision of all methods was ≤±0.04 (1 St.dev.). However, Raman spectra recorded for 42 natural MORB glasses from a wide range of locations revealed a strong correlation between the spectra and composition, despite the latter varying only over a relatively limited range, such that the methods calibrated using the glass standards are not directly applicable to the natural samples. This compositional effect can be corrected by using a compositional term that links spectral variations to the Fe3+/FeTOT value of the glass. The resulting average Fe3+/FeTOT determined by Raman spectroscopy was 0.090 ± 0.067 (n = 42). This value agrees with the latest Fe K-edge XANES and wet-chemistry estimates of 0.10 ± 0.02. The larger uncertainty of the Raman determination reflects the sensitivity of Raman spectroscopy to small changes in the glass structure. While this sensitivity is detrimental for high precision Fe3+/FeTOT determinations, it allows the major element composition of natural MORB glasses to be determined within 1 mol% through the use of an artificial neural network. This suggests that Raman spectrometers may be used to determine the composition of samples in situ at difficult to access locations that are incompatible with X-ray spectrometry (e.g., mid-ocean ridges).
Human Adipose-Derived Stem Cells with Great Therapeutic Potential
Authors: Sheykhhasan Mohsen , Wong Joanna K.L. , Seifalian Alexander M. 
Published: April 2019

:
The potential use of stem cell-based therapies for the repair and regeneration of various
tissues and organs offers a paradigm shift in regenerative medicine. The use of either embryonic stem
cells (ESC) or induced pluripotent stem cells (iPSC) in clinical situations is limited because of regulations
and ethical considerations even though these cells are theoretically highly beneficial. While clinically,
adipose-derived stem cells (ADSCs) are one of the most widely used types of stem cells used
more than five years in clinically setting. It has many advantages including; yields a high number of
ADSCs per volume of tissue, high rate of proliferation, anti-fibrotic, anti-apoptotic, anti-inflammation,
immunomodulation, and paracrine mechanisms have been demonstrated in various preclinical studies.
It is much easier to harvest compared with bone marrow stem cells. Results of clinical studies have
demonstrated the potentials of ADSCs for stem cells therapy for a number of clinical disorders. The
aim of this paper was to provide an update on the most recent developments of ADSCs, by highlighting
the properties and features of ADSCs, critically discussing its clinical benefit and its clinical trials in
treatment and regeneration. This is a multi-billion dollars industry with huge interest to clinician, academia
and industries.
An Approach to Treatment of Liver Cancer by Novel Glycyrrhizin Derivative
Authors: El-Senduny Fardous F. , Zidane Mahmoud M. , Youssef Magdy M. , Badria Farid A. 
Published: April 2019

Background:
Liver cancer is a life threating disease as it is the fifth most common cancer and the
third most common cause of death worldwide with no safe, efficient, and economic drug available for treatment.

Methods:
This study intended to investigate glycyrrhizin and its derivatives for possible use as a cytotoxic agent
and as a drug for liver cancer treatment. Thus, after treatment of liver cancer cell line HepG-2 with 50 μM of
each compound, cell viability was determined.

Results:
The cytotoxicity assay showed glycyrrhizin derivatives ME-GA (18β-Glycyrrhetinic-30-methyl ester)
and AKBA (3-acetyl-11- keto-β-Boswellic acid) to be the most potent drug against liver cancer cell line HepG-2
with IC50 values 25.50 ± 1.06 and 19.73 ± 0.89 μM, respectively. Both the compounds showed higher selectivity
towards hepatocellular carcinoma rather than the normal lung fibroblast cell line WI-38. The presence of
methyl ester at C-30 greatly increased the cytotoxicity of ME-GA which might be attributed to its higher activity
and selectivity. Both ME-GA and AKBA contributed to inhibit cancer cell migration in the wound healing
assay and impeded colony formation. The use of flow cytometry to carry out cell cycle analysis and the determination
of possible mechanisms of action for apoptosis revealed that ME-GA arrested the cell cycle at G2/M
that led to the inhibition of hepatocellular carcinoma and induced apoptosis via the extrinsic pathway and its
ability to increase p53 transactivation.

Conclusion:
This work highlights the cytotoxicity of glycyrrhizin and its derivatives for possible use as a chemotherapeutic
agent against hepatocellular carcinoma cells HepG-2. The most cytotoxic compound was ME-GA
(18β-Glycyrrhetinic-30-methyl ester) with no cytotoxic effect on the normal cell line. In summary, this new
derivative may be used as an alternative or complementary medicine for liver cancer.
Linear Analysis of Stability of Pitched Roof Frames
Authors: Bocovo T. Mariano , Aisse Gerard Gbaguidi , Degan Gerard 
Published: April 2019

Background:
In this paper, geometric nonlinear analysis of pitched roof frames was carried out by the stiffness matrix method using stability functions.

Objective:
This study contributes to a better knowledge of the stability of pitched roof frames, not braced, and therefore of the efficiency in their dimensioning.

Method:
At first, the argument of the stability functions was set as 0.01. The stiffness matrix of the frame has been assembled, as well as the nodal load vector of the frame. The boundary conditions (support restraint and wind bracing restraint) were introduced for the reduction of this matrix and the nodal load vector. At this stage, the determinant of the reduced stiffness matrix and the reduced nodal displacement vector are calculated. The argument of the stability functions is incremented by 0.01 and the operations are repeated until the determinant of the reduced stiffness matrix changes sign. The argument of the iteration preceding the sign change of the determinant and corresponding to its positive value is taken and refined by a process described in the paper. The buckling loads of the frame members are determined at this stage.

Results and Conclusion:
The analysis focused on four frames; the obtained results show that the increase in the inclination of the crossbar makes it possible to take full advantage of the “arch effect”. Arch effect is due to the presence of crossbars which have a linear arch shape. Furthermore, the angle as well as the length ratio, between the crossbar and post, influence critical load value.
Effect of Magnesium Addition on Corrosion Resistance of Aluminum -17%Silicon Alloy
Authors: Abbass Muna Khethier , Hassan Khairia Salman , Ameen Kayser Aziz 
Published: April 2019

The electrochemical behavior of Al-17%Si alloy is investigated in 3.5wt% NaCl solution. Many alloys with addition of the different wt% magnesium metal of 1wt%, 2%, 3wt% ,4.5wt% ,and 9wt% were prepared by gravity die casting . The microstructures of prepared alloys were examined by optical and SEM microscopes. Corrosion behavior was investigated by using potentiostat instrument under static potentials test and corrosion current was recorded to determine corrosion resistance of all prepared samples. It was found that the addition of Mg metal improves the corrosion resistance of Al-17%Si alloy in 3.5%NaCl solution. The alloy containing 1%Mg shows less corrosion rate than the others while the alloys containing 4.5%Mg, 9%Mg content have the better pitting corrosion resistance than other alloys.
Prediction of Surface Roughness and Material Removal Rate in Electrochemical Machining Using Taguchi Method
Authors: Ibrahim Abbas Fadhil 
Published: April 2019

Electrochemical machining is one of the widely used non-conventional machining processes to machine complex and difficult shapes for electrically conducting materials, such as super alloys, Ti-alloys, alloy steel, tool steel and stainless steel. Use of optimal ECM process conditions can significantly reduce the ECM operating, tooling, and maintenance cost and can produce components with higher accuracy. This paper studies the effect of process parameters on surface roughness (Ra) and material removal rate (MRR), and the optimization of process conditions in ECM. Experiments were conducted based on Taguchi’s L9 orthogonal array (OA) with three process parameters viz. current, electrolyte concentration, and inter-electrode gap. Signal-to-noise (S/N), the analysis of variance (ANOVA) was employed to find the optimal levels and to analyze the effect of electrochemical machining parameters on Ra and MRR. The surface roughness of the workpiece was decreased with the increase in current values and electrolyte concentration while causing an increase in material removal rate. The ability of the independent values to predict the dependent values (R2) were 87.5% and 96.3% for mean surface roughness and material removal rate, respectively.
Design and Implementation for 3-DoF SCARA Robot based PLC
Authors: Karem Iman Salih , A.Wahabt Talal A. Jabbar , Yahyh Mawadah Jlaa 
Published: April 2019

Abstract
This paper presents mechanical and electrical design, and implementation process of industrial robot, 3-DoF type SCARA (selective compliment assembly robot arm),with two rotations and one translation used for welding applications.The design process also included the controller design which was based on PLC(programmable logic controller) as well as selection of mechanical and electrical components.The challenge was to use the available components in Iraq with reasonable costs. The robot mentioned is fully automated using programmable logic controller PLC(Zelio type SR3-B261BD),with 16inputs and 10 outputs. The PLC was implemented in FBD logic to obtain three different automatic motions with high efficiency withouterror,where the two links can stop in a certain points and link 3 bushed down for doing the task in a desired trajectory motion by programming the PLCcontroller.
Keywords: DoF, FBD, PLC, SCARArobot.
Recovery of Platinum and Palladium from Scrap Automotive Catalytic Converters
Authors: Hammadi Mohammed Qasim , Yassen Rabiha Saleh , Abid Kadhim Noori 
Published: April 2019

Abstract

The hydrometallurgical method was used to platinum and palladium leaching with aqua regia solution (3HCl: HNO3). The leaching experiments were designed to obtain the optimum conditions by using Taguchi method with 16 experiments at three different factors (time, temperature and solid to liquid ratio), and each factor has four different levels. In this study, leaching the powder sample of catalytic converter that contains platinum and palladium was conducted on the basis of the formation of chloro complexes platinum and palladium (PtCl62-, PdCl42-) with different concentrations in the acidic solution. The optimum conditions for leaching process are (time = 120 minutes, temperature = 100°C, and solid to liquid ratio = 1/20).The best efficiency for platinum and palladium leaching at these conditions were 97.58%, 93.23%, respectively. After leaching process at optimum conditions, platinum was firstly precipitated in the form of (NH4)2PtCl6 (ammonium chloroplatinate) by adding (5ml/l) of ammonium chloride (NH4Cl) as a precipitant agent .Then, palladium was precipitated in the form of (NH4)2PdClO3 (palladium ammonium chlorate) by adding (5g/l) of sodium chlorate (NaClO3) as a precipitant agent to the remaining solution after the removal of platinum. The best efficiency for platinum and palladium recovery at optimum leaching conditions were 91.94%, and 98.82%, respectively.

Keywords: Aqua regia, catalytic converter, PGMs, Platinum, Palladium, recovery, catalytic converter, 3HCl:HNO3.