bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Faktor Lingkungan Terhadap Pola Distribusi Spasial Dan Temporal Musuh Alami Di Lahan Pertanian
Authors: ALIFFAH ASYIK NUR , NATSIR NUR ALIM , RIJAL MUHAMMAD , SAPUTRI SALMA
Published: March 2020

Natural enemies are one component of Integrated Pest Management that utilizes non-chemical methods and reduces pesticides. Physical factors of the environment both temperature, humidity and varying light intensity greatly affect the abundance of natural enemies in an agricultural ecosystem. The purpose of this study was to determine the number and types of natural enemies of visitors to the observation plots, species diversity (H ') and the influence of environmental factors on the spatial and temporal distribution patterns of natural enemies on agricultural land. Sampling was conducted in May until July 2019. Observations were made grouped into 4 periods are at 07.00-08.00 WIT, 09.00-10.00 WIT, 12.00-13.00 WIT and at 15.00-16.00 WIT. The observation method used is to use "visual control". The results showed that environmental factors influence the number and type of natural enemies of the plot observation visitors. Natural enemies who visited the observation plot in the agricultural area were 5 families including Coccinellidae, Staphylinidae, Carabidae, Libellulidae, and Formicidae. Shannon - Wienner diversity index of H '>3. Environmental factors affect the presence of natural enemy insects with a correlation of Adjusted R-Square of 0.846 or 84.6%.

Key Words: Natural Enemies, Environmental Factors, Spatial, Temporal Distribution
Pendampingan Dan Pelatihan Diversifikasi Pengolahan Ikan Bagi Ibu-Ibu Nelayan Di Pulau Sembilan Kabupaten Sinjai
Authors: SAFITRI DIAN , R WIRA YUSTIKA , IRMAWATY IRMAWATY , HAMBALI HILMI
Published: March 2020

Community service is intended to educate or transfer knowledge from information sources to recipients of information. This program has provided changes both socially and economically with the main target being welfare. The Sembilan Island region is one of the areas located in Sinjai Regency which has considerable land and sea potential. The marine and fisheries sector in this region in the short term is known as a sector that is able to have an impact on production activities from other sectors (Output Multiplier / OM) and increase in people's income (Income Multiplier / IM). The community service program that has been carried out involves 30 fishermen mothers in Pulau Sembilan and divided into 5 small groups accompanied by tutorials. Fish is processed into various products including fish balls, fish nuggets and shredded fish. The assistance and training that has been done have increased the community's confidence in increasing their income (Income Multiplier / IM) so that they can sustain the community's economy in Sembilan Island, Sinjai Regency.

Key Words: Training, Diversification, Processed Products, Fishermen
Studi Pengetahuan Masyarakat Mengenai Gulma Air Sebagai Bioindikator Pencemaran Air Di Desa Lambur Luar Kabupaten Tanjung Jabung Timur
Authors: NURAIDA NINING , SUSANTI TRY
Published: March 2020

The number of aquatic plants along the river flow outside the village of Lambur becomes a barrier to water traffic so that these plants are classified to be weeds or a nuisance for local people. This study aims to determine and document the types of weeds found in the village of Lambur and explore locals’ knowledge about the types of existing water weeds and their use. This research was conducted in the Village of Lambur Luar Tanjung Jabung Timur District by using the roaming method to collect existing Weed samples. Data collection is done by observation, interviews, documentation and literature studies, the data are analysed descriptive qualitative design. The results showed that there were 19 species and 13 families of water weeds, namely: Fimbristylis sp1, fimbristylis sp2, Cyperus sphacelatus Rottb, Blyxa aubertii Rich, Lindernia sp, Glinus oppositifolius (L.) Aug.DC, Melastoma malabathticum L, Nymphaea nouchali Burn, Ludwigia hyssopifolia (G.Don) Exell, Ludwigia repens JR Forst, Scoparia dulcis, Hippochaete debilis (Roxb.ex Vaucher) Ching, Panicum repens L, Oryza sativa, Persicaria hydropiper L, Monochoria vaginalis (Burm.f.) C.Presl, Borreria alata (Aubl.) DC, Borreria repens DC, and Xyris sp. Of the 19 species found, only 12 species, the locals know the name of the water weed, 7 species are only referred to as grass only by the locals, this water weed is not used by the them but mostly weeds are used for animal feed, the researchers provide education to the community that actually weed water can be used for treatment and to find out the quality of a waters or be used as an indicator of the biological condition of a river in wheteher good condition or not.

Keywords: Knowledge Studies, Lambur Luar, Water Weeds
Pengembangan Asesmen Kinerja Praktikum Sistem Respirasi Pada Serangga
Authors: NURHAYATI NURHAYATI , ASTUTI TRI AYU , RISTANTO RIZHAL HENDI , MIARSYAH MIEKE
Published: March 2020

This research is research and development (R & D) which aim to develop assesment of respiration practicum performance in insects. The development of student practicum performance instruments is only focused on measuring student’s psycomotor competencies, especially in practicum, but this research was only carried out until the validation stage was carried out by the validator. This research used 4D models which consisting of four stage define, develop, design, and disseminate. The stage of develop and disseminate are not done due to limited time. The instruments in this research is performance assesment validation sheet and performance assesment instruments sheet. The result is development of performance assesment instruments in the respiration practicum that has been validated content indicates that validation of student practicum performance instruments on indicators of filling in instruments and indicators of conformity with indicators and objectives of practicum performance assesment students show very valid criteria that have an average of 3,50. Next indicator is the language used in the practical performance assesment instrument students have valid criteria with an average of 3,33 and conformity indicator with the rubric has valid criteria with an average of 3,00. So the results of the validation of the entire instrument of practicum performance assesment students have valid criteria with an average of 3,33 and valid is used as a student practicum performance instrument.

Key Words: Performance Assesment, Practice
Pemanfaatan Daun Kesambi dalam Ransum Berbahan Dasar Rumput Lapangan dan Pengaruhnya terhadap Pertumbuhan Kambing Lakor
Authors: SANGADJI INSUN , TAHYALA HENY E
Published: March 2020

The research was conduccted in Yoiha sub-village Letti District at Maluku Barat Daya regency for two months. The objective of the research was to study growth of Lakor goat fed native grass basal diet with kesambi leaf, specifically, this research was aimed to determine percentage of kesambi leaf and its effects on Lakor goat growth. The research was arranged into a Simple Randomized Design with five treatments and three replications. Kesambi Leaf was offered at 25%, 50%, 75% and 100% to subtitute native grass. The measurements were feed intake, avarage daily gain and feed efficiency. The results showed that using kesambi leaf 50%, 75% and 100% had significant effect (P
Kandungan Logam Berat Timbal (Pb) Dan Kadmium (Cd) Pada Air, Sedimen Dan Organ Mangrove Di Perairan Tulehu
Authors: NATSIR NUR ALIM , HANIKE YUSRIANTI , RIJAL MUHAMMAD , BACHTIAR SUHAEDIR
Published: March 2020

Differences in the accumulation of heavy metals lead and cadmium in water, sediments and mangrove organs (roots, stems and leaves) found in the waters of Tulehu, Maluku Province. Samples were taken from three observation stations, namely stopping ships that are not operating (station 1), Tulehu harbor (station 2) and Control (station 3). Pb and Cd were analyzed using Atomic Absorption Spectrophotometer. Pb and Cd content in sediments is higher than in water. The highest Pb and Cd content is found in the stems then in the roots and leaves (stems> roots> leaves). Mangroves are one of the aquatic organisms that have the ability to absorb heavy metals in the aquatic environment.

Key words: Mangrove, Pb, Cd, Heavy Metal
Keanekaragaman Jenis Dan Dominansi Mangrove Di Pesisir Pantai Desa Sehati Kecamatan Amahai, Kabupaten Maluku Tengah
Authors: SIPAHELUT PATRICIA , WAKANO D , SAHERTIAN D E
Published: March 2020

Geographically, Indonesia is in the tropics. This causes Indonesian waters to become increasingly rich in various types of marine biota which must be found in coastal waters. Coastal waters are places where various ecosystems with high organic productivity are found, one of which is mangrove. Mangroves are plants that live in coastal areas whose lives are always influenced by tidal currents. This study will explain how the diversity of mangroves and how the dominance of mangrove species on the coast of Sehati Village, Amahai District, Central Maluku Regency. This research was conducted to determine the species diversity and dominance of mangrove species. So that the results of this study show that in the coastal waters of Desa Sehati, Amahai Subdistrict, Central Maluku Regency, 5 mangrove species were found, namely Rhizophora mucronata, Bruguiera cylindrica, Bruguiera gymnorhiza, Sonneratia alba and Nypa fruticans which were members of 2 classes (Magnoliopsida and Liliopsida), 2 orders (Myrtales and Arecales), 3 families (Rhizophoraceae, Sonneratiaceae and Arecaceae), and 4 genera (Rhizophora, Bruguiera, Sonneratia and Nypa) with medium species diversity indexes and low species dominance.

Key Words: Mangrove, Species Diversity, Species Dominance
Pengaruh Penggunaan Model Pembelajaran Gadget Terhadap Peningkatan Hasil Belajar Matakuliah Zoologi Vertebrata Pada Mahasiswa Program Studi Pendidikan Biologi FKIP Universitas Pattimura
Authors: TUAPUTTY HASAN , KURNIA TRI SANTI , SIMAL RUVIATI , MALAWAT RIVALDO
Published: March 2020

Educational paradigm thoughts in this 21st century in line with the development of science and technology. We see nowadays that cellular computation program enables lecturer to record students` assessment data directly from mobile device. Besides, by the use of electronical devices that could be operated to increase and enhance students` learning in various way like enhancing students` understanding in theories, related with a performance or presentation, lab and experiments or written task and assignments. Then mobile device termed gadget. To know the influence of gadget learning model usage towards students` learning result and thinking skill in accomplishing assignments on vertebrate zoology course of college students from biology education faculty of education pattimura university. This research being held in Faculty of Education Pattimura University Biology Education, on Ferbuary 10th - June 10th 2019. Data will be analyzed statistically using SPSS 2.0

Key Words: Gadget Learning Model, Thinking Skill, Students` Learning Result
Hubungan Faktor Fisik Lingkungan Terhadap Keanekaragaman Dan Dominansi Echinodermata Di Zona Intertidal Sekitar Dermaga Desa Hila Pulau Romang Kabupaten Maluku Barat Daya
Authors: SALMANU SRIYANTI I. A , ARINI INE
Published: March 2020

Faktor fisik kimia lingkungan merupakan salah satu factor yang mempengaruhi keberadaan organisme pada suatu daerah perairan. Berdasarkan penelitian pada 10 transek dengan 50 plot pengamatan kondisi factor fisik kimia ketika dilakukan pengukuran adalah sebagai berikut; rata-rata pengukuran suhu 27,7 0C, pH 6,36, salinitas 4,9 ‰, dan Oksigen terlarut 5,9 mg/L. Indeks keanekaragaman echinodermata adalah 1,865, nilai ini mengindikasikan bahwa indeks keanekaragaman echinodermata pada lokasi penelitian sedang, indeks kemerataannya adalah 0,789, nilai ini mengindikasikan bahwa kemerataan echinodermata penelitian rendah, pada lokasi penelitian sangat jauh berbeda atau tidak merata, indeks kekayaannya adalah 62,033 ini mengindikasikan kekayaan echinodermata rendah. Nilai rata-rata dominanasinya adalah 0,032 masuk dalam kategori rendah. Hubungan factor fisik kimia lingkungan terhadap keanekaragaman terlihat bahwa nilai korelasi adalah 1,013 dan ketika dilakukan uji lanjut menggunakan uji t, maka terlihat bahwa t hitung 10,90 ˃ t table 2,015 maka dapat disimpulkan bahwa ada hubungan yang signifikan antara factor fisik kimia lingkungan dengan keanekaragaman. Hubungan factor fisik kimia lingkungan terhadap dominanasi echinodermata terlihat bahwa nilai korelasi adalah 5,127 dan ketika dilakukan uji lanjut menggunakan uji t, maka terlihat bahwa t hitung 1,731 < t table 2,015 maka dapat disimpulkan bahwa tidak ada hubungan yang signifikan antara factor fisik kimia lingkungan dengan dominanasi echinodermata.

Kata Kunci: Echinodermata, Faktor Fisik, Keanekaragaman, Kepadatan
Hubungan Penilaian Kinerja Terhadap Hasil Belajar Biologi Materi Sistem Sirkulasi Pada Manusia Di Kelas Xi Madrasah Aliyah Negeri Wara Ambon
Authors: SEKNUN M FAQIH , RENGGIWUR JANABA , SOPAMENA NURLAILA
Published: March 2020

Learning as an educational process require tactic, approach, method, and various techniques so students can master the material well and deep in the process of teaching and learning, the assessment of the process of teaching and learning outcomes is often ignored, less of attention compared with assessment of learning outcomes. Whereas to find out the learning process was successful or not. Active students or not must be assessed at the time learning is on. Problem in this research is whether the relationship of performance appraisal to learning outcomes and how much the relationship of performance appraisal to learning biology the material circulation system in humans at XI MA Negeri Wara Ambon. This research uses type correlational aim to measure how far the relationship of performance appraisal to learning biology the material circulation system in humans. Result of research show that the relationship of performance appraisal to learning biology the material circulation. The result interpretation value r = 0,67 consist of medium category or enough. Based on the coefficient if determination, so amount of contribution students learning habit is 70.73 %. Therefore, another factor as concept ability, ability of understanding material and question ability determine learning success around 29,27 %.

Key Words: Biology, Performance Assessment, Circulation
Diet and recruitment of green turtles in Fiji, South Pacific, inferred from in-water capture and stable isotope analysis
Authors: Piovano S , Lemons GE , Ciriyawa A , Batibasaga A , Seminoff JA
Published: March 2020

Green turtles Chelonia mydas are listed as Endangered on the IUCN Red List, yet in the South Pacific few conservation-relevant data are available for the species, especially relating to foraging and habitat use. Here, in situ observations and stable isotope analysis (δ13C and δ15N) were used to evaluate green turtle diet and recruitment patterns at Yadua Island and Makogai Island, Fiji. Juvenile green turtles (N = 110) were hand-captured, measured, and sampled. Stable isotope analysis was performed on skin samples and on putative prey items. ‘Resident’ turtles versus ‘recent recruits’ were classified based on their bulk skin tissue isotope values, which were compared with stable isotope values of local prey items and analyzed via cluster analysis. Green turtle diet composition was estimated using MixSIAR, a Bayesian mixing model. Recent recruits were characterized by ‘low δ13C/high δ15N’ values and ranged in curved carapace length (CCL) from 25.5 to 60.0 cm (mean ± SD = 48.5 ± 5.7 cm). Recruitment mostly occurred in summer. Green turtles identified as ‘residents’ had CCLs ranging from 43.5 to 89.0 cm (mean ± SD = 57.4 ± 9.0 cm) and were characterized by ‘high δ13C/low δ15N’ values; mixing model results indicate they fed primarily on invertebrates (40%), fishes (31%), and marine plants (29%). This study confirms the value of seagrass pastures as both an essential habitat and a primary food source for green turtles, and can serve as a baseline for evaluations of natural and anthropogenic changes in local green turtle aggregations.
Drilling Efficiency Improvement and Rate of Penetration Optimization by Machine Learning and Data Analytics
Authors: Chandrasekaran Sridharan , Kumar G. Suresh
Published: March 2020

Rate of Penetration (ROP) is one of the important factors influencing the drilling efficiency. Since cost recovery is an important bottom line in the drilling industry, optimizing ROP is essential to minimize the drilling operational cost and capital cost. Traditional the empirical models are not adaptive to new lithology changes and hence the predictive accuracy is low and subjective. With advancement in big data technologies, real- time data storage cost is lowered, and the availability of real-time data is enhanced. In this study, it is shown that optimization methods together with data models has immense potential in predicting ROP based on real time measurements on the rig. A machine learning based data model is developed by utilizing the offset vertical wells’ real time operational parameters while drilling. Data pre-processing methods and feature engineering methods modify the raw data into a processed data so that the model learns effectively from the inputs. A multi – layer back propagation neural network is developed, cross-validated and compared with field measurements and empirical models.
Development and Formulation of an Organic Fertilizer from Industrial and Agricultural Waste to Study the Growth of Marigold (Tagetes) Plant
Authors: Majee Subhasish , Halder Gopinath , Krishnaraj R. N. , Mandal Tamal
Published: March 2020

The present study focused on the utilization of solid wastes viz. wet blue leather of leather industry, rice husk ash from rice mills, and water hyacinth in addition to a commercial steamed bone meal for the invention of nutrient-enriched organic fertilizer. To produce NPK organic fertilizer, chromium-free wet blue leather (WBL) as nitrogen source was amalgamated with rice husk ash, water hyacinth, and commercial steamed bone meal as a potassium and phosphorus source. The efficiency of such developed organic fertilizer designated as type I was tested as a nutrients source on the marigold plant. Ammonia analysis of fertilizer applied soil samples revealed that the content of liberated free ammonia in the soil fertilized with organic fertilizer was 44.80 %, 20.70 %, and 10.35% higher than the natural soil, chemically fertilized soil and fertilized with vermicompost respectively. Application of developed organic fertilizer and vermicompost designated as type II on marigold plant resulted in significant growth which are comparable to those obtained with commercial Chemical fertilizer. The plant growth increased by chemical fertilizer, Type I fertilizer, and Type II fertilizer in terms of plant height 26.5 %, 20 %, 22.7% and leaf size 21.2 %, 15.4 %, 17.3 % respectively which are observed to be higher than the growth of the control plant.
Micro Hardness and Erosive Wear Behavior of Tungsten Carbide Filled Epoxy Polymer Nano Composites
Authors: Reddy M. Kameswara , Babu V. Suresh , Srinadh K. V. Sai
Published: March 2020

The present work studies the tribological performance of Tungsten Carbide (WC) nanoparticles reinforced epoxy polymer nanocomposites. Polymer nanocomposites are prepared by hand lay-up method. Erosive wear and hardness tests were conducted to examine the physical and wear properties of epoxy/WC nanocomposites. Addition of WC nanoparticles led to significant reduction in erosion rate. In addition to that, incorporation of WC nanoparticles enhanced the hardness of epoxy nano composites. At 2% weight of WC nano filler, nanocomposites showed better performance in erosion wear properties and also in hardness. While at 3wt% of WC filler, least performance in hardness was caused by the weak adhesive bonding between the matrix and filler. The nature of erosion wear behavior was observed. Finally worn surfaces of nanocomposites were inspected using a “scanning electron microscope (SEM)”.
A Joint Return Policy for a Multi-Item Perishable Inventory Model with Deterministic Demands, Return and All-Units Discount
Authors: Lesmono Dharma , Limansyah Taufik , Loedy Neilshan
Published: March 2020

In this paper, we develop a multi-item perishable inventory model with deterministic demands, return and all-units discount. We consider a situation where a retailer sells several products to the customer and orders the products from one supplier. Demands are assumed to be deterministic following an inventory-dependent demand, and the supplier offers all-units discount to the retailer who has an opportunity to return unsold or deteriorated products to the supplier at a certain cost. In order to minimize the total cost for the retailer, the decision variables are the optimal return time and the optimal ordering quantity. Considering a multi-item case as an extension of the model by Setiawan et al. (2018) is the main contribution of this paper. We also develop an algorithm to find the optimal solution of the model. Numerical examples for three items are given to illustrate the model and a sensitivity analysis is performed to study the effect of the changes in parameter values on the optimal solution. We consider two scenarios, one with all-units discount and one with no discount. Within these two scenarios, we consider conditions of individual or joint return time for these three items. It is found that the individual return time with no discount gives the least total inventory cost in the numerical examples. Also, in general increasing the value of holding cost, deteriorating rate, return cost per unit and backorder cost will increase the total inventory cost in all scenarios.
Computationally Efficient Hybrid Method for the Numerical Solution of the 2D Time Fractional Advection-Diffusion Equation
Authors: Salama Fouad Mohammad , Ali Norhashidah Hj. Mohd
Published: March 2020

In this paper, a hybrid method based on the Laplace transform and implicit finite difference scheme is applied to obtain the numerical solution of the two-dimensional time fractional advection-diffusion equation (2D-TFADE). Some of the major limitations in computing the numerical solution for fractional differential equations (FDEs) in multi-dimensional space are the huge computational cost and storage requirement, which are O(N^2) cost and O(MN) storage, N and M are the total number of time levels and space grid points, respectively. The proposed method reduced the computational complexity efficiently as it requires only O(N) computational cost and O(M) storage with reasonable accuracy when numerically solving the TFADE. The method’s stability and convergence are also investigated. The Results of numerical experiments of the proposed method are obtained and found to compare well with the results of existing standard finite difference scheme.
Time Domain Implementation of Transmitting Boundaries in ABAQUS for Discrete Soil-structure Interaction Systems
Authors: Patchamatla J. Rama Raju , Emani P. K.
Published: March 2020

Soil-structure-interaction (SSI) analyses are essential to evaluate the seismic performance of important structures before finalizing their structural design. SSI under seismic condition involves much more complex interaction with soil compared to the dynamic loads having source on the structure. Seismic SSI analysis requires due consideration of site-specific and structure-specific properties to estimate the actual ground motion (scattered motion) experienced at the base of the structure, and subsequently the effects of the scattered motion on the structure. Most challenging aspect of seismic SSI analysis is to implement transmitting boundaries that absorb the artificial reflections of stress waves at the truncated interface of the finite and infinite domains, while allowing the seismic waves to enter the finite domain. In this paper, the time domain implementation of seismic analysis of a soil-structure system is presented using classical discrete models of structure and interactive force boundary conditions for soil. These models represent typical SSI systems- a single Degree of Freedom (DOF) of a spherical cavity with mass attached to its wall, a two DOF system consisting of a mass attached by a nonlinear spring to a semi-infinite rod on elastic foundation, and a three DOF system with additional DOFs for modelling the structural stiffness and damping. The convolution integral representing the force boundary condition on the truncated interface, is evaluated interactively using UAMP user-subroutine in ABAQUS and applied as concentrated forces at the interface (truncated interface) nodes of the bounded domain or generalized-structure domain. The verification problems presented in the paper show the satisfactory performance of the developed MATLAB code and ABAQUS implementation with FORTRAN user-subroutines. The classical phenomena associated with the dynamic soil-structure systems are discussed through the present work.
Quality Circle: A Methodology to Enhance the Plant Capacity through Why-Why Analysis
Authors: Kumar Janender , Kataria Krishan Kumar , Luthra Sunil
Published: March 2020

In the manufacturing firms, hospitals, banks, schools and research institutes etc., total customer satisfaction with products and services have very much importance and also necessary for their survival. Quality services and reducing wastages of all types are the primary need of every organisation. Quality Circle is (QC) is one of the techniques that can be utilised to solve industrial problems and can reduce the rejection level. In present paper, QC concept is implemented to solve wastage problem by taking a real case study of an automobile industry. The observed data was analysed through various problem solving techniques such as 80/20 rule and fishbone diagram etc. Finally, Why-Why analysis was carried out to identify the root cause of the problem and suggested actions to solve the problem. The following results were obtained: Gradually reduction in materials wastage minimises the rejection and hence reduces the overhead expenses of the firm. Further, QC helps in motivating employees to do their best for the organisation, which not only improves the productivity of the organisation, but also helps in discovering hidden talent and creative skill of the workforce. Finally, QC helps in developing the sense of belongingness towards organisations.
Fuzzy Multi-Criteria Decision Making Algorithm under Intuitionistic Hesitant Fuzzy Set with Novel Distance Measure
Authors: Saikia Rupjit , Garg Harish , Dutta Palash
Published: March 2020

Decision making under uncertainty is a crucial issue and most demanding area of research now a days. Intuitionistic hesitant fuzzy set plays important role in dealing with the circumstances in which decision makers judge an alternative with a collection membership grades and a collection of non-membership grades. This paper contributes a novel and advanced distance measure between Intuitionistic Hesitant fuzzy sets (IHFSs). A comparative analysis of the present distance measure with existing measures is performed first. Afterwards, a case study is carried in multi-criteria decision making problem to exhibit the applicability and rationality of the proposed distance measure. The advantage of the proposed distance measure over the existing distance measures is that in case of deficit number of elements in IHFs, a decision maker can evaluate distance measure without adding extra elements to make them equivalent and furthermore, it works in successfully in all the situations.
Sugeno Intuitionistic Fuzzy Generator Based Computational Technique for Crude Oil Price Forecasting
Authors: Goyal Gunjan , Bisht Dinesh C. S.
Published: March 2020

Crude oil being a significant source of energy, change of crude oil price can affect the global economy. In this paper, a new approach based on the intuitionistic fuzzy set theory has been implemented to predict the crude oil price. This paper presents the intuitionistic fuzzy time series forecasting algorithm to enhance the efficacy of time series forecasting which includes fuzzy c-means clustering to obtain the optimal cluster centers. Further, a computational technique is proposed for the construction of triangular fuzzy sets and these fuzzy sets are converted to intuitionistic fuzzy sets with the help of Sugeno type intuitionistic fuzzy generator. The popular benchmark dataset of West Texas Intermediate crude oil spot price is used for the validation process. The numerical results when compared with existing methods notify that the proposed method enhances the accuracy of the crude oil price forecasts.
Investigating the Effect of Counter Gravity Mold Filling on Microstructure and Mechanical Properties of Cast Aluminium
Authors: Chak Vineet , Chattopadhyay Himadri , Alam Md. Mahfooz
Published: March 2020

In present study an effort has been made to investigate the effect of changing the mode of mold cavity filling on mechanical properties and microstructure of cast aluminium. The pouring of the melt in mold cavity is avoided so as to check defects associated with it and instead of pouring, counter gravity filling of mold technique is utilized. The obtained properties and microstructure are compared with gravity poured (traditionally cast) aluminium. Characterization techniques like optical microscopy, scanning electron microscopy, X-Ray diffraction and mechanical testing like tensile and hardness of the cast samples is carried out. Hardness and tensile strength reported an increment of 22.37% and 26.71% respectively as compared to traditionally cast specimens. This enhancement in mechanical properties was attributed to improved microstructure obtained.
On the Calculation of Functional Safety Parameters of Technical Systems
Authors: Shubinskiy Igor B. , Baranov Leonid A. , Zamyshliaev Aleksey M.
Published: March 2020

Now the scientific methodology is created, the theory and practice of the analysis and synthesis of functional safety of responsible electronic programmable devices and systems at all stages of their life cycle are developed. The basics of the methodology are fixed by standards. Methods of analysis and synthesis of functional safety are strictly formalized. They are based on the calculations of functional safety indicators with respect to failures of constituent elements and, especially, dangerous and protective failures of the system. Known methods of calculation are focused on determining the intensity and probability of dangerous failures. The objective of the proposed method lies in the fact that, in graph form, without resorting to the solution of the system of equations in the operator transformations to establish the distribution function of time until the threat or security failure, or any unhealthy condition of the system. These distribution functions determine all the necessary indicators of mean time (and, if necessary, the variance of this time) to a dangerous or protective failure. The proposed semi-Markov (Markov) operator method allows to solve a number of problems of calculation and prediction of functional safety of critical (responsible) systems. The method is formalized and suitable for subsequent computer implementation. This fact testifies to the expediency of further development of graph methods, convenient for the study of the safety of complex critical systems, devoid of the shortcomings of the proposed method in terms of the complexity of the preparatory work to determine the analytical expressions of transition probabilities in the Laplace - Stieltjes transformations. The given example of using the method has an independent value – it allows you to assess the advantages and disadvantages of ensuring functional safety by building a two-channel system without restarting the channels
Hopf Bifurcation in an Augmented IS-LM Linear Business Cycle Model with Two Time Delays
Authors: Karim Firdos , Chauhan Sudipa , Bhatia Sumit Kaur , Dhar Joydip
Published: March 2020

This paper deals with the amalgamated basic IS-LM business cycle model with Kaldor’s growth model to form an augmented model. Pertaining to substantial evidence, IS-LM model in paradigm with a specific economic extension (Kaldor-Kalecki Business cycle model in our case) provides an adept explanation of a developing but strong economy like that of our country. Occurring in the equation of capital accumulation, the two time delays are a result of the assumption in the investment function being both income and capital stock dependent in past period and maturity period. Investigating a model combined with capital accumulation is both interesting and important. From economist point of view, production without capital is impossible to even imagine. Moreover capital accumulation is impeccable to large-scale production, specialisation and creation of employment opportunities. In our model ‘I’ the investment function, ‘S’ the savings function and ‘L’ the demand for money are depending linearly on their arguments. We adhere to a linear model, contrary to the popular belief of non- linear models being the undisputed style for modern economics. The model is first shown to be mathematically and economically poised. The local stability of boundary and interior equilibrium points has been investigated. Three cases arise, pertaining to two time delays. System dynamics exhibits mutation under the influence of time delays and may clinch or discharge its local stability when subjected to the latter. Hopf bifurcation occurs when the delay parameter crosses a critical value.
Stochastic Analysis of a Computer System with Unit Wise Cold Standby Redundancy and Failure of Service Facility
Authors: Yadav R. K. , Malik S. C.
Published: March 2020

Here, we analyze stochastically a computer system by taking one more similar unit (called computer system) in cold standby redundancy. The computer system consists of hardware and software components together. The provision of a single service facility has been made for repairing hardware and up-grading the software. The failure of the service facility is considered which resumes the jobs with full efficiency as new after availing treatment. The failure rates of hardware and software components as well as failure rate of the service facility are taken as constant and thus follow negative exponential distribution. The treatment rate of the service facility, repair rate of the hardware and up-gradation rate of the software follow arbitrary distributions with different probability density functions. Efforts have been made to determine reliability measures in steady state by using SMP and RPT. The behavior of MTSF, availability and also the profit function is observed graphically for some particular situations of the parameters.
Effect of Inflation on Two Storage Inventory Model with Time Dependent Deteriorating Items and Stock Dependent Demand
Authors: Sharma Preeti , Sharma Sanjay , Singh B. B. , Tyagi Anand
Published: March 2020

For deteriorating product, there always be a pressure on the company to maximize the profit. In the present model, an effort is made to develop a production inventory control model having two separate warehouses. In most of the study, the demand is assumed as time dependent which is not appropriate; but here authors have considered stock based demand. An approach is taken into consideration that deterioration rate different for different warehouses.
Selection and Experimentation of the Best Hybrid Green Composite Using Advanced MCDM Methods for Clean Sustainable Energy Recovery: A Novel Approach
Authors: Bose Soutrik , Mandal Nabankur , Nandi Titas
Published: March 2020

Relevant and appropriate selection of best hybrid material is a challenging task for the recent industries. The
mandatory criterion is to deal with the enhanced productivity with minimum cost. Therefore, this paper highlights on
the comparative study between the advanced multi-criteria approaches namely ARAS, MABAC, COPRAS and
MOOSRA methods for the selection of the best hybrid composite material using aluminum (Al) as base material
varying different reinforcement weights and recycling with various industrial wastes by stir casting. Al/WCE gives
superior tribomechanical properties at lower cost than any other reinforcements. These advanced MCDM methods are
applied, based on the properties and attributes of the hybrid composites, to compare between the computational and
experimental results. The results exactly corroborate with the previous research results, which authenticate the
expediency of these methods during the solving of complex hybrid material selection problems for sustainable energy
recovery. Out of 48 different samples, A30 is obtained to be the best sample by ARAS approach (rank 1) which is
Al+Al2O3 at 12.5%wt. addition. A24 is ranked 2 which is heat treated 12.5%wt. WCE. But the same A30 is obtained
to be rank 5 and A24 is obtained to be rank 1 by MABAC method, A30 is obtained to be rank 2 and A24 to be rank 1
by COPRAS method, and A30 is calculated to be rank 1 and A24 to be rank 11 by MOOSRA method. A24 is also
obtained to be the best hybrid composite as per the experimentation. This paper also aims for proper recovering of
environmental friendly renewable energy for the society by fabricating the best hybrid green composite for
sustainable development.
THE EFFICACY OF THE BISMUTH-CONTAINING QUADRUPLE REGIMEN IN HELICOBACTER PYLORI INFETION
Authors: Tran Thi Khanh Tuong , Vu Quoc Bao
Published: March 2020

Background and Objectives: Bismuth-containing quadruple regimen is recommended as an first-line therapy in areas with high clarithromycin and metronidazole resistance as well as an option for patients who have previously failed to respond to Helicobacter pylori eradication therapy. There have been very few researches on the effectiveness of this regimen on Helicobacter pylori infection treatment in our country. The our study aimed to show the efficacy of Bismuth-based therapy for the treatment of Helicobacter pylori infection.
Patients and Methods: The study was carried out on 196 patients with Helicobacter pylori infection. All of patients received a quadruple therapy consisted of Rapeprazole 20 mg bid, Colloidal bismuth subcitrate 120mg qid, Tetracycline 500mg qid and Metronidazole 500mg tid for 14 days. The diagnosis of Helicobacter Pylori infection was performed by Clotest or C13 urea-breath test. Four to eight weeks after completion of therapy, Helicobacter pylori status was rechecked by Clotest or C13 urea-breath test.
Results: A total of 196 patients with Helicobacter pylori infection were recruited. The eradication rates of the Bismuth-containing quadruple regimen overall, fornaïve,previously failed to respond to Helicobacter pylori eradication therapy on intention to treat (ITT) and per-protocol (PP) analysis were 97.4-97.3%; 98.3-98.1% and 96.3-96.2%. Side effects occurred in 80.5% of subjects. The common side effects were fatigue, anorexia and nausea. The compliancerate was 98.4%.
Conclusions: Bismuth-containing quadruple regimen achieved very highe radication rates. Side effects were common but not serious. The medication adherence rate was high.

Key words: Bismuth-containing quadruple regimen, eradication, Helicobacter pylori infection
COMBINED SPINAL AND EPIDURAL ANESTHESIA FOR HIP REPLACEMENT
Authors: Nguyen Van Minh , Le Tan Tinh
Published: March 2020

Objectives: To describe the technique features evaluate the efficacy of combined spinal and epidural anesthesia in hip replacement surgery.
Materials and methods: In a prospective, descriptive study of 50 patients indicated hip replacement underwent combined spinal and epidural anesthesia. Technical parameters and successful rate and efficacy were recorded.
Results: The duration of catheter placement was 4.20 ± 0.70 minutes, the distance between the skin and the NMC was 3.72 ± 0.73 cm, the success rate of the technique of puncture in one intervertebral space was 96%, two different intervertebral space 4%, success for the first insertion was 80%. Total motor block of the lower limb was 92%, requirement of suplemental dose through the catheter to achieve anesthesia for surgery was 2%. The rate of hypotension is 6.6%.
Conclusion: Combined spinal and epidural anesthesia provided effective anesthesia for hip replacement surgery with high success rates in one vertebrae technique, shorter duration of technique, lower hypotension. Additional dose through the epidural catheters may be used if the spinal anesthesia was incomplete or prolonged surgery.

Key words: Combined spinal and epidural anesthesia, hip replacement
FACTORS ASSOCIATED WITH THE ASSESSMENT ON HEALTH CARE QUALITY AT COMMUNE HEALTH CENTERS IN THUA THIEN HUE PROVINCE
Authors: Nguyen Minh Tam , Nguyen Thi Hoa
Published: March 2020

Background: Patient satisfaction is an important indicator of healthcare quality. Better satisfaction is associated with greater adherence to treatment and better health outcomes. Primary care is considered the basic structure of many healthcare systems. Evaluation of healthcare provision is essential in the ongoing assessment and consequent quality improvement of healthcare services.
Objective: To describe and analyze the determinants associated with patient assessment and satisfaction in primary care.
Methods: The survey was conducted with 519 households and 209 patients at 18 commune health centers. The questionnaire included sociodemographic variables, health status, and use and satisfaction with primary care services. We undertook descriptive analyses, bivariate correlations to study the relationship between levels of satisfaction and the explanatory variables for demographics, health status and health services for households and patients.
Results: The majority of households and patients were satisfied with the health care services at primary health care facilities. Satisfaction of waiting time, communication and counseling by healthcare providers was high. We found significant associations between the level of satisfaction and owning health insurance card, the first contact point assigned at CHCs, the severity of illness episodes, and health condition of participants.
Conclusions: The results provide evidence on factors that should be taken into account in the planning and development of health policies with respect to the quality and delivery of primary care services in order to enhancing the satisfaction of clients.

Key words: consumer satisfaction, patient satisfaction, primary care, quality indicators
CHICKENPOX AND ITS COMMON COMPLICATIONS
Authors: Tran Dinh Binh , Dinh Thi Ai Liên
Published: March 2020

Chickenpox is an infectious disease caused by the Varicella-Zostervirus (VZV), this is a virus in the family of Herpesviridae. It’s characterized by fever, skin rash and mucocutaneous rash. Chickenpox is widely distributed disease with varying in age, seasons, climate, and resident of people . Mother-to-child transmission of the virus can occur during pregnancy, during delivery and after birth. In people who have had chickenpox, after the cure, a few viruses exist in the nerves sensing the spine in the form of latent, silent. When conditions are favorable (triggers) such as immunodeficiency, stress, radiation therapy, cancer, HIV infection ... the virus reacts, multiplies and spreads, causing inflammation and necrosis of the nerve in shingles (Zona). Chickenpox is a benign disease but it can also cause many complications in severe cases and which is not properly treated. Complications of dermatitis due to bacterial superinfection, the peanut note to pus, when cured can leave scar. In patients with severe malnutrition, nodules may be necrotic. The most severe complication is encephalitis, meningitis that are very dangerous, which can cause dead if delayed to hospital and emergency care is not timely. The disease can spread rapidly in the community, but there are active measures to prevent chicken pox, which is vaccination. Key words: Chickenpox, Varicella-Zostervirus (VZV)
Automatic weather stations for basic and applied glaciological research
Authors: Citterio Michele , Van As Dirk , Ahlstrøm Andreas P. , Andersen Morten L. , Andersen Signe B. , Box Jason E. , Charalampidis Charalampos , Colgan William T. , Fausto Robert S. , Nielsen Søren , Veicherts Martin
Published: March 2020

Since the early 1980s, the Geological Survey of Denmark and Greenland (GEUS) glaciology group has developed automatic weather stations (AWSs) and operated them on the Greenland ice sheet and on local glaciers to support glaciological research and monitoring projects (e.g. Olesen & Braithwaite 1989; Ahlstrøm et al. 2008). GEUS has also operated AWSs in connection with consultancy services in relation to mining and hydropower pre-feasibility studies (Colgan et al. 2015). Over the years, the design of the AWS has evolved, partly due to technological advances and partly due to lessons learned in the field. At the same time, we have kept the initial goal in focus: long-term, year-round accurate recording of ice ablation, snow depth and the physical parameters that determine the energy budget of glacierised surfaces. GEUS has an extensive record operating AWSs in the harsh Arctic environment of the diverse ablation areas of the Greenland ice sheet, glaciers and ice caps (Fig. 1). The current GEUS-type AWS (Fig. 2) records meteorological, surface and sub-surface variables, including accumulation and ablation, as well as for example ice velocity. A large part of the data is transmitted by satellite near real-time to support ongoing applications, field activities and the planning of maintenance visits. The data have been essential for assessing the impact of climate change on land ice. The data are also crucial for calibration and validation of satellite-based observations and climate models (van As et al. 2014).
Effects of Urban Transformation on Transportation Infrastructure: Goztepe Transformation Area Example
Authors: ALP Gulcin , Ozdemir Yavuz , OZDEMIR Sahika
Published: March 2020

Cities are the settlements they form as living spaces of societies and they are not just structures; the same people are born, breathe, grow and thrive. While the cities are growing, their structures are unable to carry the density of the population due to deterioration in time. Urban transformation projects have emerged as a response to this need. However, it is seen that there are some problems and deficiencies when the issue of existing land use and transportation network factors for renewal of the problematic places of the cities is examined in parallel with the changes. If these problems are not prevented, it will not be possible to leave quality, reliable and sustainable cities for years to come. Non-sustainable transportation and land-use decisions in fast-growing urban areas are not effective in solving transportation problems. Point solutions against transportation problems are not permanent in the long term and cause problems after a short period of time. Therefore, the effect of the transformations on the transportation and land use factors are evaluated together. In this study, it is emphasized that the land use and transportation factor should be handled based on Göztepe District of Ba?c?lar district which is in the process of transformation under the law no 6306.
Хронічне запалення, асоційоване з ожирінням, цукровим діабетом 2-го типу та кардіоваскулярним ризиком, як мішень для терапевтичних втручань. Частина 2
Authors: Riabukha V.V.
Published: March 2020

Огляд літератури присвячено актуальній дослідницькій проблемі – хронічному запаленню, асоційованому з ожирінням, цукровим діабетом 2-го типу та кардіоваскулярним ризиком. Оскільки запалення виступає в ролі патологічного медіатору за цих коморбідних станів, робляться спроби вплинути на хронічний запальний процес за допомогою лікарських засобів для зниження ризику виникнення серцево-судинних захворювань атеросклеротичного генезу. Це пов’язано з патогенетичними сигнальними механізмами, що ініціюють і підтримують запалення, а також залучають його в розвиток інсулінорезистентності й атерогенез. Розглянуто способи фармакологічного втручання з безпосереднім впливом на запалення (саліцилати, низькодозове застосування метотрексату, біологічні препарати з протизапальною дією) та інші лікувальні заходи з протизапальним ефектом (антилейкотрієнова терапія) у контексті їхнього впливу на кардіометаболічний ризик.