bluuebunny/crossref_metadata_2025 huggingface dataset:
Realidades compartilhadas: organizações vistas como fenômeno cultural - educação, igreja e sociedade
Authors: Alliegro Sandra Berenice Villodre
Published: March 2017

Neste ensaio proponho uma breve análise das organizações vistas como fenômenos culturais para procurar compreender como um sistema de significados é criado e difundido em vista de uma realidade. Neste caso, a realidade educacional de escolas católicas à luz das diretrizes propostas pela Igreja. Preciso esclarecer que concebo o termo cultura como um conjunto de normas sociais, de comportamentos e de valores, de leis, rituais e ideologias que constituem o arcabouço de crenças que sustenta uma dada sociedade, assegurando-lhe a coesão e a harmonia enquanto a vida flui em todos os sentidos (político, social, administrativo, econômico, religioso, artístico ...). Partindo desta concepção, proponho a análise das organizações em sua forma de planejar e administrar negócios.
Isolation of peat swamp forest foliar endophyte fungi as biofertilizer
Authors: Hakim Safinah Surya , Yuwati Tri Wira , Nurulita Sari
Published: March 2017

Peatland restoration activity is facing many obstacles, particularly in planting techniques and poor nutrient in peat soil. Naturally, endophytic fungi are abundant and have great potential as biofertilizer. This research investigates the potential endophytic fungi isolated from leaves of peat swamp tree species for biofertilizer. Research activities include: exploration, in vitro test to examine the phosphate solubilization and identification. Result showed that there were 360 leave segments collected from 4 sampling locations. The colonization percentage of 222 isolates ranged from 52.17% - 60.17%. Fifty seven morphospecies were selected from 222 isolates. Twelve isolates demonstrated ability to produce clear zones and ten isolates were selected for identification. It is concluded that twelve isolated demonstrated potential ability to produce clear zone and Penicillum citrinum isolate P3.10 was identified as an isolate that show the highest potential ability as a biofertilizer
THE USE OF BIOFERTILIZERS INCREASED PLANT GROWTH WITH NO TRADE-OFF EFFECT ON GREENHOUSE GAS EMISSIONS
Authors: Hadi Abdul , . Udiantoro , Nur Hasrul Satria , , Muhlis
Published: March 2017

Several experiments have been carried out to elucidate the reduction in greenhouse gas emissions as effect of replacement of chemical fertilizer by biofertilizers on alluvial soils in Indonesia.  Biofertilizers “Biotara” and “Biosure” were applied along with NPK fertilizer on alluvial soil cultivated with rice.  Emissions of nitrous oxide (N2O), methane (CH4) and carbon dioxide (CO2) were monitored in biweekly basis up to the maximum vegetative growth of the rice plant. Oil palm empty fruit bunch (OP EFB) as well as grasses were composted with Bacillus brevis and Bacillus megaterium as activator. The composts were incorporated into alluvial soils cultivated to oil palm and the emissions of N2O, CH4 and CO2 were monitored in biweekly basis. The results showed that biofertilizer “Biotara” or “Biosure” combined with NPK fertilizer (¾ recommendation dose) could increase paddy growth with no significant effect on N2O, CH4 and CO2 emissions.  The emissions of N2O,  CH4 and CO2 exhibited seasonal changes as affected by inclusion of either OP EFB and weed compost along with NPK fertilizer.  Global warming potentials of each treatment for NPK, OP EFB compost and weed compost were 5.6, -5.2 and -4.9 ton CO2equ m-2 year-1, respectively. It could be concluded that the replacements of synthetic fertilizer with biofertilizer or compost did not have negative impact on the environment which could be promoted.
ANALISIS KUANTITATIF PORI BERDASARKAN PENGOLAHAN CITRA MENGGUNAKAN WOLFRAM MATHEMATICA
Authors: Tiandho Yuant
Published: March 2017

Currently, a porous material has been extensively developed in many areas of applied science and engineering. The characteristics of porous material is most often determined by its porosity. In this paper, we present a quantitative analysis of pores in a material according to image processing methods. An micrograph from electron microscopy (SEM) was analyzed by using Wolfram Mathematica. From our study can be obtained some informations about pore percentage (porosity), pore size,  ratio aspect, and distribution of pore size in the materials.

Keywords: pore, image processing, Wolfram Mathematica

Saat ini, material berpori telah dikembangkan secara luas di banyak bidang sains terapan dan teknik. Karakteristik dari material berpori seringkali ditentukan oleh porositasnya. Dalam makalah ini, kami menyajikan menyajikan analisis pori dalam suatu material berdasarkan metode pengolahan citra. Suatu mikrograf dari mikroskopi elektron (SEM) kami analisis dengan menggunakan Wolfram Mathematica. Dari penelitian kami dapat diperoleh beberapa informasi tentang persentase pori (porositas), ukuran pori, aspek rasio, dan distribusi ukuran pori dalam material.

Kata kunci: pori, pengolahan citra, Wolfram Mathematica
APLIKASI KRIPTOGRAFI PESAN SHORT MESSAGE SERVICE PADA SMARTPHONE BERBASIS ANDROID DENGAN METODE PLAYFAIR CIPHER
Authors: Hatta Heliza Rahmania , Ardi Mohamad , Maharani Septya
Published: March 2017

The current technological developments, allows humans to communicate and exchange information remotely. Along with the demands for security against the confidentiality of the information exchanged is increasing. Therefore, it is developing branch of science that studies on ways of securing data or better known as cryptography. Playfair cipher method is one method for text encoding cryptography. This study aims to develop an application of cryptography SMS (Short messsage Service) on the android based smartphone with Playfair cipher method, which can send SMS messages cryptography and receive text messages encrypted and then decrypted. These applications do cryptography in text form letters. The key used in the form of letters. The results of this study are in the form of android-based application that can make sending SMS messages that have been encrypted using the Playfair cipher method, so that the confidentiality of the message can be gated.

Keywords: Cryptography, SMS, Smartphone, Android, Playfair Cipher.

Perkembangan teknologi sekarang ini, memungkinkan manusia dapat berkomunikasi dan dapat bertukar informasi secara jarak jauh. Seiring dengan itu tuntutan akan keamanan terhadap kerahasiaan informasi yang saling dipertukarkan tersebut semakin meningkat. Oleh karena itu, dikembangkanlah cabang ilmu yang mempelajari tentang cara-cara pengamanan data atau lebih dikenal dengan Kriptografi. Metode playfair cipher merupakan salah satu metode kriptografi untuk penyandian teks. Penelitian ini bertujuan untuk membangun suatu aplikasi kriptografi pesan SMS (Short Messsage Service) pada smartphone berbasis android dengan metode playfair cipher, yang dapat mengirim kriptografi pesan SMS dan menerima pesan teks terenkripsi yang kemudian didekripsi. Aplikasi ini melakukan kriptografi pada teks berupa huruf. Kunci yang digunakan berupa huruf. Hasil dari penelitian ini adalah berupa aplikasi berbasis android yang dapat melakukan pengiriman pesan SMS yang telah terenkripsi menggunakan metode playfair cipher, sehingga kerahasiaan dari pesan tersebut dapat terjaga keamanannya.
Kata kunci: Kriptografi, SMS, Smartphone, Android, Playfair Cipher.
IMPELEMENTASI SEMI-SUPERVISED LEARNING PADA PERSONALIZED ASTHMA MANAGEMENT SYSTEM
Authors: Fiarni Cut , Sipayung Evasaria Magdalena , Moningka Kevin Barry
Published: March 2017

Asthma is a chronic disease of the lungs that react on various stimuli that was found on the patient’s body. The various stimuli, which are Sensitization and Inflammatory are different   for each patient and it also could lead to asthma attack on different severity degrees. Information and knowledge regarding the cause factors of asthma is very important for patient, so they could have a better control of their asthma triggers and health conditions.  In this paper, we developed a personalized asthma management system by using semi-supervised learning technique.  The main methodology is to find pattern from patient daily information, then system will extract rules regarding their asthma trigger and classify them to each of asthma severity degrees. There is a dashboard that contain all the factors noted by the patient and evaluation of their asthma management. The result of experiment evaluation shown that the proposed system have 80% of accuracy, which proves that system reliable for a better asthma self-management.

Keywords: asthma management,semi- supervised learning, dashboard system

Penyakit asma adalah penyakit radang kronis pada paru-paru yang bereaksi pada berbagai rangsangan yang terdapat pada tubuh penderitanya. Penyakit ini memiliki berbagai macam faktor penyebab terjadinya serangan asma dan tidak dapat digeneralisasikan. Selain itu, penyakit asma memiliki derajatnya masing-masing sesuai dengan tingkat keparahannya. Informasi tentang faktor penyebab asma penting karena penderita asma cenderung lalai dalam memperhatikan gejala atau faktor-faktor penyebab terjadinya asma sehingga mengakibatkan manajemen asma yang tidak baik. Pada penelitian ini dikembangkan aplikasi manajemen penyakit asma yang bersifat personal untuk masing-masing penderita, dengan mengadopsi teknik supervised learning. Data dan infromasi aktivitas harian penderita akan direkam oleh system, kemudian system akan mencari pola terkait faktor-faktor pemicu dan pemacu asma, serta mengklasifikasikannya berdasarkan pada  derajat serangan asma. Pada system usulan terdapat dashboard yang memberikan informasi dan hasil evaluasi kondisi historis penderita asma secara mudah dan efektif. Dari hasil pengujian  didapat akurasi system sebesar 80%, hal ini menunjukan system mampu membantu pasien dalam melakukan manajemen asma secara mandiri.

Kata kunci: manajemen penyakit asma, semi-supervised learning, dashboard system
IMPLEMENTASI METODE TOPSIS DAN SAW DALAM MEMBERIKAN REWARD PELANGGAN
Authors: Windarto Agus Perdana
Published: March 2017

In an industry sales, competition is a natural thing. The number of businesses with the same type makes an entrepreneur should have the right strategies in increasing the purchasing power of customers and reap the benefits. This research aims to implement the algorithms in computer science to create a decision support system for granting rewards to customers Drinking water Depot. In this research method used is TOPSIS and SAW. Where samples are used as much as 6 customers with the assessment criteria is the status of payments, the status of customer liveliness, long subscription, purchase amount, and the time of purchase. From the comparison of the two methods, showed that the calculations carried out by TOPSIS method is better than the SAW method.

Keywords: Customer, SPK, Reward, TOPSIS method, Method SAW

Dalam sebuah industri penjualan, persaingan merupakan hal yang wajar. Banyaknya usaha-usaha dengan jenis yang sama membuat seorang pengusaha harus memiliki strategi-strategi yang tepat dalam meningkatkan daya beli pelanggan dan menuai keuntungan. Penelitian ini bertujuan untuk mengimplementasikan algoritma dalam ilmu komputer untuk membuat sistem pendukung keputusan pemberian reward kepada pelanggan Depot Air minum. Dalam penelitian ini metode yang digunakan adalah TOPSIS dan SAW. Dimana sampel yang digunakan sebanyak 6 pelanggan dengan kriteria penilaian adalah status pembayaran, status keaktifan pelanggan, lama berlangganan, jumlah pembelian, dan waktu pembelian. Dari hasil perbandingan kedua metode tersebut, diperoleh hasil bahwa perhitungan yang dilakukan dengan metode TOPSIS lebih baik dibandingkan dengan metode SAW.

Kata Kunci: Pelanggan, SPK, Reward, Metode TOPSIS, Metode SAW
PERBANDINGAN METODE WEIGHTED PRODUCT DAN WEIGHTED SUM MODEL DALAM PEMILIHAN PERGURUAN SWASTA TERBAIK JURUSAN KOMPUTER
Authors: Solikhun Solikhun
Published: March 2017

Sistem Pendukung Keputusan (SPK) merupakan suatu sistem yang dapat membantu seseorang dalam mengambil keputusan yang dengan lebih efektif dan efisien. Dengan adanya sistem ini, permasalahan yang di hadapi dapat di selesaikan, seperti penentuan perguruan tinggi swasta terbaik. Ada beberpa metode yang dapat di gunakan dalam membangun suatu SPK seperti Metode Weighted Product dan Weighted Sum Model. Metode Weighted Product (WP) menggunakan perkalian untuk menghubungkan rating atribut, dimana rating setiap harus di pangkatkan dulu dengan bobot atribut yang bersangkutan. Metode Weighted Sum Model (WSM) merupakan penjumlahan dari perkalian rating atribut dengan bobot atribut. WP dan WSM merupakan metode yang sederhana, dimana penggunaannya mudah untuk di pahami, seperti dalam SPK penentuan perguruan tinggi swasta terbaik di kota pematangsiantar. Penelitian ini menggunakan metode WP dan WSM. Dalam penentuan kualitas perguruan tinggi, ada beberapa kriteria yang menjadi dasar pengambilan keputusan antara lain jumlah jurusan komputer, biaya kuliah, lingkungan kampus, jumlah program beasiswa, dan akreditasi BAN PT. Adapun hasil dalam penelitian ini adalah hasil pilihan pengguna sistem dengan nilai kriteria yang di tentukan sendiri oleh pengguna, dan hasilnya akan diurutkan dari nilai yang tertinggi hingga terendah, sehingga pengguna lebih mudah mengambil keputusan dengan melihat hasil tersebut.

Kata kunci : Sistem Pendukung Keputusan, Weighted Product, Weighted Sum Model, Perguruan Tinggi.
PEMILIHAN RUMAH MENGGUNAKAN METODE WEIGHT PRODUCT DENGAN VISUALISASI LOKASI OBJEK
Authors: Kurniawan Dwi Ely , Amanda Selly Tri
Published: March 2017

Pemilihan akan tempat tinggal tentu harus dengan perhitungan dan pertimbangan yang matang. Biasanya seseorang membeli rumah ke pengembang dengan melihat beberapa parameter harga, luas bangunan, luas tanah, jumlah kamar jarak dan lokasi. Semakin banyaknya alternatif pilihan rumah yang ditawarkan terkadang menyulitkan seseorang dalam memilih dan memilah tempat tinggal yang sesuai. Penelitian ini membuat sebuah sistem pendukung keputusan yang menerapkan metode weighted product untuk melakukan perangkingan dalam penentuan kebutuhan tempat tinggal. Metode weighted product merupakan metode penentuan dalam sebuah keputusan dengan cara perkalian untuk dapat menghubungkan nilai atribut, dimana setiap atribut harus dipangkatkan terlebih dahulu dengan bobot atribut yang bersangkutan. Alternatif rumah yang ada dikatagorikan perkecamatan dengan parameter yang sesuai kebutuhan. Hasil dari pengembangan sistem mampu melakukan rekomendasi perangkingan berdasarkan kecamatan dengan menampilkan objek rumah dengan visualisasi lokasi.

Kata kunci: weighted product, rekomendasi, rumah 
MODEL HALAMAN TUNGGAL UNTUK PENINGKATAN KINERJA APLIKASI PEREKAMAN DATA PENUGASAN JABATAN STRUKTURAL
Authors: Thamrin Husni
Published: March 2017

Convenience is one of the key factors that support the success of information system implementation, and it is affected by how the system supports users to quickly get their job done. For the case of institution XYZ, the process of data recording of a managerial mutation requires a number of steps. System operators found it cumbersome to go through too many steps when recording such data because it takes a long time to complete the task. The situation is exacerbated for recording a decree with several job assignment changes. To overcome this problem, we have developed an application that applies single page model and replaced the legacy system that applies standard web pages. The use of a single page web-based applications reduces the amount of data that are transferred between client and server so it is more efficient in terms of processing speed compared to the standard web application. The implementation of single page application in institution XYZ drops the number of data transfered to the level of 62% for recording a single job assignment. The percentage level is smaller when a process contains a lot of job assignment, as happened in the case of large-scale mutation.

Keywords: single page application, job assignment, information system

Kenyamanan penggunaan sistem informasi merupakan salah satu faktor kesuksesan implementasi sistem, dan hal ini dipengaruhi oleh dukungan sistem agar pengguna dapat menyelesaikan pekerjaan dengan cepat. Proses perekaman data pergantian jabatan struktural pada aplikasi yang diterapkan di lembaga XYZ memerlukan beberapa tahap aktivitas untuk setiap data jabatan baru. Teknik ini memberi masalah terutama ketika merekam sebuah surat keputusan dengan banyak perubahan data penugasan,  yaitu lamanya waktu untuk menyelesaikan pekerjaan. Untuk mengatasi permasalahan tersebut, diterapkan model halaman tunggal menggantikan model halaman web standar. Penggunaan model halaman tunggal pada aplikasi berbasis web mengurangi jumlah data yang harus ditransfer antara server dan client sehingga lebih efisien dari segi kecepatan proses dibanding penerapan model halaman standar. Pada aplikasi yang diterapkan di lembaga XYZ, perekaman satu data jabatan dengan model halaman tunggal memerlukan hanya 62% jumlah data yang ditransfer antara client dan server. Prosentase akan mengecil jika sebuah proses mengandung banyak data penugasan, seperti yang terjadi dalam kasus mutasi jabatan besar-besaran.

Kata kunci: aplikasi halaman tunggal, single page application, penugasan jabatan, sistem informasi
Avian and Mammalian Facilitative Glucose Transporters
Authors: Byers Mary Shannon , Howard Christianna , Wang Xiaofei
Published: March 2017

The GLUT members belong to a family of glucose transporter proteins that facilitate glucose transport across the cell membrane. The mammalian GLUT family consists of thirteen members (GLUTs 1-12 and HMIT). Humans have a recently duplicated GLUT member, GLUT14. Avians express the majority of GLUT members. The arrangement of multiple GLUTs across all somatic tissues signifies the important role of glucose across all organisms. Defects in glucose transport have been linked to metabolic disorders, insulin resistance and diabetes. Despite the essential importance of these transporters, our knowledge regarding GLUT members in avians is fragmented. It has been clear that there are no chicken orthologs of mammalian GLUT4 and GLUT7. Our examination of GLUT members in the chicken revealed that some chicken GLUT members do not have corresponding orthologs in mammals. We review the information regarding GLUT orthologs and their function and expression in mammals and birds, with emphasis on chickens and humans.
Khusyu Dalam Perspektif Dosen dan Pegawai STAIN Kudus
Authors: Kushidayati Lina
Published: March 2017

Artikel ini bermaksud membahas tentang persepsi Muslim tentang khusyu’ yang merupakan kondisi kejiwaan yang penting dalam ibadah terutama shalat. Penelitian dilakukan terhadap dosen dan pegawai di lingkungan STAIN Kudus. Data diperoleh dari wawancara mendalam dengan enam informan yang kemudian dianalisa dengan menggunakan pendekatan kualitatif deskriptif. Hasil penelitian menunjukkan bahwa meskipun terdapat variasi tentang makna khusyu’ semua narasumber bersepakat tentang arti pentingnya khusyu’ baik dalam shalat maupun dalam kehidupan sehari-hari. Sementara itu indicator-indikator yang disampaikan oleh informan sejalan dengan indicator yang disampaikan oleh Imam al-Ghazali.
Integrity Testing of a Polyvinyl Chloride Slotted Liner for Horizontal Coalbed-Methane Wells
Authors: Yang Ruiyue , Huang Zhongwei , Li Gensheng , Sepehrnoori Kamy , Lin Qing , Cai Chengzheng
Published: March 2017

Steel slotted liners are often used in horizontal coalbed-methane (CBM) well completions. However, the disadvantages associated with these liners, such as high operation costs, corrosion susceptibility, and safety considerations in subsequent mining processes, can limit their performance. One possible alternative is a plastic slotted liner. A major challenge for designing a plastic slotted liner is providing sufficient structural integrity without creating a significant restriction for gas that flows into a wellbore.

In this paper, we present an optimization design for polyvinyl chloride (PVC) slotted liners. Our design couples the influence of the mechanical integrity of the liner and the inflow performance. The optimization parameters are the slot geometrical parameters. The boundary conditions are identified by the failure criteria and the influence of various slot-parameter adjustments through laboratory compression experiments. Two models—a collapse-bearing-capacity model and a skin-factor model (Furui et al. 2005)—are used to optimize the design of the PVC slotted liners. A genetic algorithm is used to maximize the collapse-bearing capacity and minimize the skin factor. Finally, a selection guide for the optimal combination of slot parameters is provided.

The key findings of this work are beneficial for determining the design criteria of plastic slotted liners in horizontal CBM wells. In addition, the proposed “cross-disciplinary” evaluation method is expected to provide a valuable optimization approach for slotted-liner completions.
Cárie dentária em indivíduos entre 35 e 44 anos do município de Manaus-AM: análise dos dados do Projeto SB Brasil 2010
Authors: Venâncio Gisely Naura , Dária Pedrina da Costa , De Souza Mateus Silva
Published: March 2017

A cárie, o maior problema de saúde em odontologia, tem como principal fator etiológico o acúmulo de biofilme dental, uma doença que, na ausência de tratamento, progride até destruir totalmente a estrutura dentária, sendo resultante do desequilíbrio nos processos de desmineralização e remineralização. O objetivo deste trabalho foi analisar os resultados do Índice CPO-D na faixa etária de 35-44 anos na população de Manaus coletados do levantamento epidemiológico de âmbito nacional da área de saúde bucal, intitulado Projeto SB Brasil 2010. Os resultados mostram que o estado de saúde bucal nos indivíduos 35-44 anos de idade reflete o impacto acumulado de políticas de prevenção e tratamento, sendo que a expressiva melhora nas condições dentárias é um indicador importante de que as mudanças na ocorrência da cárie dentária descrita para a população infantil brasileira também estão alcançando a população adulta. Conclui-se que a cidade de Manaus, Amazonas, possui o maior índice CPO-D dentre as capitais da Região Norte, equiparando-se a Porto Velho, Rio Branco e Boa Vista.Descritores: Cárie Dentária; Adulto; Inquéritos de Saúde Bucal.
ANTIMICROBIC ACTIVITY OF FRUIT AND VEGETABLES’ NATURAL MICROFLORA AS A SOURCE OF RECEIVING BIOPRESERVATIVES
Authors: Prosekov Alexander , Prosekov Alexander , Sukhikh Stanislav , Sukhikh Stanislav , Zimina Mariya , Zimina Mariya
Published: March 2017

During the researches the microorganisms showing antagonistic activity towards the pathogenic microflora were allocated on the surface of vegetables. After the allocated strains' identification for further researches four strains of the microorganisms which are not pathogenic have been selected: Bacillus stratosphericus , Bacillus endophyticus , Bacillus pumilus , Bacillus subtilis . Antagonistic activity of the chosen strains towards the testing cultures on the solid medium was studied by the diffusive method. Isolates show high inhibitory potential against the pathogens causing various human diseases. It should be noted that all isolates except Bacillus stratosphericus show antagonistic activity towards Salmonella enterica from 25 to 38%, while Bacillus stratosphericus does not inhibit the growth of Bacillus stratosphericus . Strains Bacillus stratosphericus , Bacillus endopheticus , Bacillus subtilis inhibit the development of Alcaligenes faecalis (52-54%). Strains Bacillus endophyticus (18%) and Bacillus pumilus (30%) are inhibitors of P. aeruginosa .
THE QUANTITY OF CELLS NECESSARY FOR THE ANALYSIS OF CHROMOSOMAL ABERRATIONS AT RESIDENTS OF KUZBASS PATIENTS WITH CANCER OF LUNG
Authors: Ryzhkova Anastasiya , Ryzhkova Anastasiya , Minina Varvara , Minina Varvara , Golovina Tatyana , Golovina Tatyana , Savchenko Yana , Savchenko Yana , Bakanova Marina , Bakanova Marina , Druzhinin Vladimir , Druzhinin Vladimir , Titov Victor , Titov Victor
Published: March 2017

The pilot research executed in 2014 in selection of patients with lung cancer (LC) and healthy residents of Kemerovo region (338 Caucasians: 159 having LC and 179 healthy) has shown statistically significant distinction between groups of level and range of chromosome aberrations in blood lymphocytes. Patients of cancer detection centre (before treatment) had increased chromosome aberration values, both of chromatid and chromosomal types. 250 metaphases were analyzed for each individual. For accuracy test of the received quantitative characteristics of mutational process and definition required and enough number of cells necessary for the analysis, at essential increase in further selection volume, 50 LC patients (selected randomly), comparison of cytogenetic data has been carried out in the analysis of 200 cells, then 400, 600, 800, 1000 and over 1000 metaphases. Totally, in this subgroup 50 000 cells which were at a mitosis metaphase stage have been studied. Statistical data processing was carried out with the use of a software package for Windows Statistica 8.0. Using Mann-Whitney U-criterion it is confirmed that frequency of aberrant metaphases doesn't change significantly for statistics in case of increase in analyzed cells quantity; the analysis of 200 cells gives no less reliable information about the individual CA level, than the analysis of 1000 and more cells. In this regard it is possible to make the conclusion that 200 cells is necessary and enough number of analysed metaphases at the assessment of individual level and chromosomal aberrations' range for Kemerovo region residents who have lung cancer.
COMPREHENSIVE MODIFICATION OF GELS POLYACRYLAMIDE
Authors: Shevchenko Tatiana , Shevchenko Tatiana , Ustinova Yulia , Ustinova Yulia
Published: March 2017

For successful use of flocculants it is necessary to give them new features artificially, among which the most important are rheological properties - shear stress at different strain rates. They can be changed while using methods of chemical and physical modifications and the most promising among them are physical methods of modification. Comparative rheological properties of polyacrylamides aqueous solutions without and with modification of the bifunctional connections of different chemical nature (glycols, amino acids) were given. The strengthening of the modification effect was achieved by the additional impact of physic-chemical factors: ultrasonic and microwaves with a frequency of 2.45 GHz for 10 s with a power of 700 watts. The thorough analysis of the rheological studies data for each flocculant was made. With modifying PG initial yield stress (Θf) increased 1.1-1.5 times, while with the modification by glycine, this value changed to 1.1-1.7 times. The optimal concentration of PE to obtain gels with high strength comprises: a modified GHG - 1.0%, modified by glycine with the influence of ULTRASONIC - 1.0% modified by glycine - 0.7%, modified by glycine with the impact of MVO - 0.3%, indicating high efficiency of the use of glycine and MVO. It was found out that Θf in the case of using PG - 1.5 times higher than that of the original (if sopt = 1.0%); when using the glycine - to 1.7 (sopt = 0.7%) higher than that of the original; in the using of glycine together with ULTRASONIC - in 1.5 times (when sopt = 0.1%) higher than that of the original, when using glycine in conjunction with MVO - in 1.9 times (if sopt = 0.3%).
SOME LINEAR AND NONLINEAR EQUATIONS OF HIGHER ORDER
Authors: Chuesheva Nadezda , Chuesheva Nadezda , Chueshev Aleksandr , Chueshev Aleksandr
Published: March 2017

In this article we consider boundary value problems for some linear and nonlinear differential equations with partial derivatives of the sixth, fifth, fourth and third orders. We write out conditions on equation coefficients for which existence and uniqueness of solutions from Sobolev's space occur. If these conditions on equation coefficients are not valid, then there are given examples when solution is not unique, or is not unstable, or does not belong to Sobolev's space from existence and uniqueness theorem even for analytical coefficients and analytical right side of differential equation. After S.P. Novikov’s fundamental study in 1974 the interest to the nonlinear Korteweg-de Vries equation, Kadomtsev-Petviashvili equation and other nonlinear equations significantly grew. In this study of such equations we used methods of algebraic geometry integration and expansion method. In these studies exact solutions of special nonlinear equations series in partial derivatives play a big role. Solvability of similar equations was also studied in articles of A.I. Kozhanov, N.A. Larkin and other authors. The aim of this article is to find some exact solutions for special series partial differential equations. Solution graphs of such problems for linear equations and for the Korteweg-de Vries, Burgers-Korteweg-deVries, and Kadomtsev-Petviashvili equations are constructed.
Quality assessment of deep-well recharge applications in the Netherlands
Authors: Antoniou Andreas , Smits Frank , Stuyfzand Pieter
Published: March 2017

Artificial recharge of aquifers can be performed for various purposes and under varying hydrogeological conditions. We present an overview of deep-well recharge applications which have taken place in the Netherlands over the last two decades. We present the purpose of each application, the issues which had to be resolved, the preventive measures which were taken to improve performance and the lessons learned from each experience. Examples are given of applications which aimed at the storage of water for drinking and other purposes such as irrigation, achieving environmental goals and disposal of wastewater. Applications aiming at drinking water production usually faced issues related to the quality of the abstracted water not meeting drinking water standards with respect to various elements, such as iron, manganese and arsenic. Storage of water in brackish aquifers was complicated by buoyancy effects making part of the recharged water irrecoverable. Recharge of water with the purpose of recovering declined groundwater tables and fighting seawater intrusion was hindered by clogging of the injection well while the disposal of wastewater was limited to aquifers of lower groundwater quality.
A novel growth method for diatom algae in aquaculture waste water for natural food development and nutrient removal
Authors: Li Xiao-li , Marella Thomas Kiran , Tao Ling , Peng Liang , Song Chao-feng , Dai Li-li , Tiwari Archana , Li Gu
Published: March 2017

Diatom algae are known to play an important role as primary producers in many diverse ecosystems, including artificial aquaculture ponds where they also aid in maintaining water quality by consuming excess nutrients. But factors influencing their growth are still poorly understood. In the present study the effect of micronutrients, N:P ratio and silica concentration on benthic diatom Synedra sp. grown in fish pond waste water was studied along with nutrient removal efficiency. We have studied nine different treatments, of which addition of micronutrient mixture Nualgi along with adjusted N:P to 6:1 resulted in highest cell density, followed by silicate enrichment, whereas only N:P adjustment and Nualgi addition had no significant effect on diatom growth. At the end of the growth experiment, the N removal efficiencies of treatment groups (50.23%–65.44%) were significantly higher (P < 0.05) than that of the control group (43.56%), whereas phosphate removal efficiency was significantly higher (P < 0.05) with Nualgi and N:P adjustment (53.37%–68.98%). The silicate consumption was significantly higher in the control group, at 63.87%, than in other experimental groups. These results will give us a new insight into important factors influencing beneficial algae growth and simultaneous nutrient removal from aquaculture waste water.
Research on Gas-liquid Mixed Transportation Technological Adaptability: A Case Study of the Western Sichuan Gas Field
Authors: Zhou Qingsha , Huang Kun , Zhou Yongchun
Published: March 2017

Background:

The western Sichuan gas field belongs to the low-permeability, tight gas reservoirs, which are characterized by rapid decline in initial production of single-well production, short periods of stable production, and long periods of late-stage, low-pressure, low-yield production.

Objective:

It is necessary to continue pursuing the optimization of transportation processes.

Method:

This paper describes research on mixed transportation based on simplified measurements with liquid-based technology and the simulation of multiphase processes using the PIPEPHASE multiphase flow simulation software to determine boundary values for the liquid carrying process.

Conclusion:

The simulation produced several different recommendations for the production and maximum multiphase distance along with difference in elevation. Field tests were then conducted to determine the suitability of mixed transportation in western Sichuan, so as to ensure smooth progress with fluid metering, optimize the gathering process in order to achieve stable and efficient gas production, and improve the economic benefits of gas field development.
Risk of Febuxostat-Associated Myopathy in Patients with CKD
Authors: Liu Chung-te , Chen Chun-You , Hsu Chien-Yi , Huang Po-Hsun , Lin Feng-Yen , Chen Jaw-Wen , Lin Shing-Jong
Published: March 2017

Background and objectives

Febuxostat, a nonpurine xanthine oxidase inhibitor, is widely used to treat hyperuricemia. Although febuxostat-associated rhabdomyolysis was reported in some patients with CKD, the association between CKD and febuxostat-associated myopathy remains uncertain.

Design, setting, participants, & measurements

Our retrospective cohort study included 1332 patients using febuxostat in Taipei Medical University–Wanfang Hospital from February of 2014 to January of 2016. The primary predictor was time-averaged eGFR as calculated by the equation proposed by the 2009 Chronic Kidney Disease Epidemiology Collaboration. The outcome was febuxostat-associated myopathy defined as elevated creatine kinase levels during febuxostat use that were not attributed to other muscular injuries.

Results

The median duration of febuxostat use was 224 days (25th, 75th percentiles: 86, 441.5 days). Of 1332 study participants, 1222 (91.7%) had CKD; the median eGFR was 20.8 ml/min per 1.73 m2 (25th, 75th percentiles: 9.0, 35.4 ml/min per 1.73 m2). Forty-one of the participants had febuxostat-associated myopathy (3.2%). All patients with myopathy had CKD, and the incident rate was 0.013 (95% confidence interval, 0.01 to 0.02) events per 100 patient-days in patients with CKD. Of 41 patients with myopathy, 37 had myositis, and four had rhabdomyolysis. Myopathy resolved in 17 patients who withdrew from treatment and eight patients who continued febuxostat treatment. Among the evaluated predictors, multivariate analysis showed that only the lowest eGFR tertile was significantly associated with myopathy in febuxostat users. The odds ratio of the lowest eGFR tertile to the highest tertile was 4.21 (95% confidence interval, 1.7 to 10.43). This finding remained consistent among subgroups stratified by age, sex, diabetes status, coronary artery disease, and statin or fibrate use.

Conclusions

Patients with severely reduced eGFR had higher risk of myopathy with treatment of febuxostat. Regular monitoring of creatine kinase level is suggested for early detection of febuxostat-associated myopathy, particularly in patients with CKD.
Indikator Asam-Basa dari Bunga Dadap Merah (Erythrina crista-galliL.)
Authors: Rahmawati Rahmawati , Nuryanti Siti , Ratman Ratman
Published: March 2017

Dadap red (erythrina crista-galli L.) is belonged to the legumes (fabaceaea) family which, is one of the flowering shade plants that often used as an ornamental plant. This plant has a bright red flower, a taproot with root nodule bacteria nitrogen fixation and compound leaf consists three strands on each stem. This research is climed to proves that the extract of dadap red flower can be used as acid-base indicators. Dadap red flowers was macerated using methanol then filtered. The filtrate was ready to use as an acid-base indicator. The extract is tested in an acid-base, buffer solutions, and was compared with phenolphthalein for a strong acid with a strong base while a methyl orange a weak base with a strong acid. Based on the result, indicator of dadap red flower extrat in the strong acid was red colour, while in the weak acid was pink, and also in the strong base was dark green and in the weak base was purple. Furthermore, in the buffer solution, the indicator of dadap red flower extract gave four groups of colour change, namely red color at pH 1 to pH 6, colorless at pH 7 to pH 9, brown at pH 10 and blue at pH 11 to pH 12. Additionally, to attain the end point of titration, the indicators of dadap red flower extract gives a similar results with the comparison indicators. The results showed that the indicator of dadap red flower extracts can be used as an alternative indicator.
Pengaruh Silika Terhadap Membran Blend Kitosan-Polivinil Alkohol-Litium Sebagai Membran Elektrolit Baterai Ion Litium
Authors: Novitasari Riska , Gonggo Siang Tandi , Suherman Suherman
Published: March 2017

Battery is one  of a source of energy. Increasing the need of energy affects to the diminishing reserves of fossil energy sources. Therefore, this needs for energy sources alternative. Modification of chitosan-polyvinyl alcohol electrolyte membrane added with lithium salt has an advantage on environmentally friendly. This research aims to study the effect of adding percent weight of silica on the conductivity of the electrolyte polymers made from chitosan-polyvinyl alcohol-lithium. The ionic conductivity of the electrolyte polymer chitosan-polyvinyl alcohol-lithium-silica was measured by impedance spectroscopy. The results showed the electrolyte polymer with the addition of 5% silica performed the highest ionic conductivity by 2.005 x 10-7 S/cm. Characteristic of battery made from electrolyte polymer chitosan-polyvinyl alcohol-lithium with the addition of silica performed voltage of 1.5 Volts which was comparable to the commercial battery with the voltage of 1.8 Volts. These results indicate that silica can be used as a filler to improve the ionic conductivity.
Pengaruh Ion Logam Cd(II) Terhadap Ekstraksi Ion Timbal(II) Menggunakan Teknik Emulsi Membran Cair
Authors: Setyani Rizka , Hamzah Baharuddin , Suherman Suherman
Published: March 2017

This study aims to study on the effect the addition of Cd (II) metal ions towards extraction of lead (II) ions using liquid emulsion membrane technique. Various concentrations of Cd (II) ions used in this study were 0, 50, 100, 150, 200, and 250 ppm. Benzoyl acetone was used as a chelating agent for extraction. Spectrophotometer spectrodirect was used to measure extraction products. The results showed that percent extraction of lead (II) ion prior additional Cd(II) ion was 99.06%, and it was decreased up to 97.95% after additional Cd(II) ion up to 250 ppm.
Financial crisis and accrual and real earnings management in Europe
Authors: Papadaki Afroditi , Tzovas Christos
Published: March 2017

The purpose of this study is to investigate whether firms engage more intensively in earnings management in a period of financial crisis. In particular, we examined a sample of 10.139 observations from 19 European Union countries for the period 2005-2014. Earnings management had been examined on both accrual and real earnings management basis. It appears that in the period of financial crisis firms are less inclined to use accruals for earnings management purposes, while real earnings management is not affected by financial crisis. Yet it seems that the more profitable firms and the firms audited by big auditing firms are less likely to adopt real earnings management practices. In addition, we found that firms’ size and leverage are factors that affect firms’ decision to manage their earnings, either on accrual or real earnings management basis.
Error announcements, auditor turnover, and earnings management – Evidence from Germany
Authors: Ebner Germar , Hottmann Johannes , Zülch Henning
Published: March 2017

Error announcements shall in principle unfold both a preventative and a sanctioning function via adverse publicity. While US research provides large and unambiguous evidence of sanctions which are based on capital market reactions, but also personal consequences of responsible managers and auditors, the few studies which investigated the German enforcement system do not yield comparable results, thereby questioning its efficacy. Building on this, we first investigate for the German enforcement setting whether error announcements lead to abnormal turnover of audit teams and audit firms than comparable non-error firms by using logistic regression. Second, we analyze whether audit team or audit firm turnover results in improved accounting quality. To do so, we proxy accounting quality with well-established earnings management models and explore the turnover’s impact on accounting quality with a difference-in-difference approach. Our results do not provide evidence of increased audit firm turnover due to error announcements, thereby contradicting studies from the US; the same holds for changes of the responsible audit teams. However, our results suggest that firms with changes of the audit firm or audit team exhibit an increase in accounting quality, which however takes place already in the time gap between error announcement and auditor change. Consequently, we interpret auditor changes serving as a signal of improved corporate governance, rather than indeed improving corporate governance.
Tax aggressiveness: The evidence from Polish listed companies
Authors: Brodzka Alicja , Biernacki Krzysztof , Chodorek Magdalena
Published: March 2017

The purpose of the article is analyzing the impact of taxation on the effective income tax rates paid by Polish companies. The authors present the results of a study made on the biggest firms, listed on the Warsaw Stock Exchange and included in the WIG20 index. In the research they bring closer the concept of tax aggressiveness – by looking at the effective tax rates (ETRs) achieved by WIG20 companies in years 2010-2014. The study is structured into 5 groups, according to the industry in which the analyzed companies operate. The results prove the sectoral differences in the level of ETRs. While the financial enterprises pay relatively high taxes in relation to the achieved gross profit, the energy sector has a negligible rate of effective taxation. At the same time companies operating in fuel and raw materials industry achieve highly unstable effective tax rates.
Delayed diagnosis of homocystinuria presenting as bilateral congenital lens subluxation
Authors: Jelic-Vukovic Marija , Matic Suzana , Barac Josip , Novinscak Tomislav , Belovari Mirna , Baric Hrvoje
Published: March 2017

Introduction. Homocystinuria is an autosomal recessively inherited defect leading to hyperhomocysteinemia and associated with ocular manifestations, mainly myopia and ectopia lentis. Case outline. A 26-year-old male with secondary glaucoma due to bilateral lens subluxation was admitted to the Department of vitreoretinal surgery. Horizontal nystagmus, bilateral lens subluxation, and bilateral amblyopia were first discovered at the age of three years. Preoperative laboratory workup revealed elevated levels of homocysteine. Bilateral pars plana lensectomy and vitrectomy followed by a sulcus fixation of the intraocular lens (ALCON MA60 Acrysof IOL) were performed. The patient was prescribed folic acid, methionine, and pyridoxine, and was urged to maintain a methionine-low diet. After a bilateral lensectomy and sulcus fixation of the intraocular lens and a methionine restriction therapy combined with vitamin B6, B9, and B12 supplementation, his condition improved greatly. Conclusion. In this report of a rare case we emphasize the importance of examining differential diagnoses of lens subluxation, since early intervention can prevent serious complications.
Harnessing XMPP for Machine-to-Machine Communications & Pervasive Applications
Authors: Iivari Antti , Väisänen Teemu , Alaya Mahdi B. , Riipinen Tero , Monteil Thierry
Published: March 2017

An ever increasing number of interconnected embedded devices, or Machine-to-Machine (M2M) systems, are changing the way we live, work and play. M2M systems as a whole are typically characterized by the diversity in both the type of device and type of network access technology employed, and such systems are often still today task-specific and built for just one specific application. Smart lighting, remote monitoring and control of all kinds of consumer devices and industrial equipment, safety and security monitoring devices and smart health and fitness products, exemplify this revolution of intercommunicating machines. However, the differences in communication technologies and data formats among such devices and systems are leading to a huge complexity explosion problem and a strongly fragmented market, with no true interoperability. Due to these problems, the full potential of M2M technology has yet to be fulfilled. In this paper, we examine the suitability of the Extensible Messaging and Presence Protocol (XMPP) and experiment with its potential to rise to the challenge of machine-to-machine communications and meet the needs of modern pervasive applications. Experimental implementations and some proof-of-concept solutions are also presented.
Cost and Lightweight Modeling Analysis of RFID Authentication Protocols in Resource Constraint Internet of Things
Authors: Kumar Adarsh , Gopal Krishna , Aggarwal Alok
Published: March 2017

Internet of Things (IoT) is a pervasive environment to interconnect the things like: smart objects, devices etc. in a structure like internet. Things can be interconnected in IoT if these are uniquely addressable and identifiable. Radio Frequency Identification (RFID) is one the important radio frequency based addressing scheme in IoT. Major security challenge in resource constraint RFID networks is how to achieve traditional CIA security i.e. Confidentiality, Integrity and Authentication. Computational and communication costs for Lightweight Mutual Authentication Protocol (LMAP), RFID mutual Authentication Protocol with Permutation (RAPP) and kazahaya authentication protocols are analyzed. These authentication protocols are modeled to analyze the delays using lightweight modeling language. Delay analysis is performed using alloy model over LMAP, RAPP and kazahaya authentication protocols where one datacenter (DC) is connected to different number of readers (1,5 or 10) with connectivity to 1, 5 or 25 tags associated with reader and its results show that for LMAP delay varies from 30-156 msec, for RAPP from 31-188 while for kazahaya from 61-374 msec. Further, performance of RFID authentication protocols is analyzed for group construction through more than one DC (1,5 or 10) with different number of readers (10, 50 or 100) and tags associated with these readers (50, 500, 1000) and results show that DC based binary tree topology with LMAP authentication protocol is having a minimum delay for 50 or 100 readers. Other authentication protocols fail to give authentication results because of large delays in the network. Thus, RAPP and Kazahaya are not suitable for scenarios where there is large amount of increase in number of tags or readers.