bluuebunny/crossref_metadata_2025 huggingface dataset:
Effects of Stem Malalignment in Cementless Hip Arthroplasty: a Computational Study
Authors: Halim Abdullah Abdul , M. Mohsien Nik , Syahmi Yusof Muhammad , Aznan Nabila , Hisyam Marwan Shahrul
Published: April 2019

Implant loosening and deformation issues contribute to the instability of the hip arthroplasty. Prosthesis stem malalignment can occur in varus, anteversion and retroversion in different degrees due to several reasons. In this study, computational analysis of cementless hip arthroplasty with different stem malalignment cases was conducted to investigate the biomechanical effects in hip arthroplasty. Five hip arthroplasty models were developed using finite element analysis which are straight/aligned model, malalignment models at varus +3°, varus -3°, sagittal flexed +3°, and sagittal extended -3°. Results show that different pattern of stress distribution was observed in each malalignment case. The varus -3° malalignment model had demonstrated the greatest risk of failure based on the resulting stress distribution and total deformation.
Numerical Analysis of the Informational Parameters of the Magnetic Fields in the Area of the Defects of Wheel Pairs Axes
Authors: Shvedchykova Iryna , Mohmed Jasim Jasim Jasim , Shevchenko Olexandr , Soloshych Iryna
Published: April 2019

The article is devoted to the problem in diagnostic for axes of wheel sets of rolling stock at the railroad lines. It shows that the time counter method of magnetic powder control has low productivity and is characterized by high subjectivity and the impossibility of automating the control process. To eliminate these defects and improve the reliability for detection of defects on the surface of the stepped axis a method based on the using of fluxgate transducer is proposed. It was carried out the analysis of magnetic fields near the surface of the axles of wheel sets using the developed mathematical models, which made it possible to calculate both the defect fields and the stray field of the stepped surface of axis. Spatial and frequency selection of useful signals based on the analysis of information parameters of magnetic fields of stray of surface and subsurface defects and fields induced by the stepped surface of the magnetized axis is proved.
Organization and Provision of Buses Operation on the Route Taking Into Account the Expenditures of Participants of the Transportation Process
Authors: М. Мoroz M , L. Khorolskyi V , V. Мoroz O , V. Vasylkovska K , V. Herasymchuk V
Published: April 2019

The purpose of research. Determination of the optimal number of buses, taking into account the opposite economic factors and economic feasibility in new routes of passenger transport when changing the parameters of transport system using legislative methods and norms.Methods: The article defines the total expenditures of participants of passenger transportation process, which is influenced greatly by the number of buses on the route: on one hand, a large number of them provides the least amount of waiting time, on the other hand, with such quantity of buses carrier’s expenditures increase, as well as the estimate and the cost account of the bus operation on the route using regulatory documents.Results: Using of the proposed methodology allows organizers and performers, in accordance with the current legislation, to overestimate (underestimate) costs deliberately (unintentionally), determine the economic expediency of opening new routes and calculating fares on existing routes and optimal number of buses on the route taking into account the influence of opposite factors. The compromise of the interests of the carrier and the passenger is influenced by the transport service time cost, operating costs and turnover time. Daily operating costs of the route studied and the volume of passenger traffic flow indicate that at the socially preferential (specified) by local council fare the carrier can cover expenditures by increasing the fare or targeted subsidies (subventions).
Effect Of Co3+ Substitution on Electro-Magnetic Properties of Pr¬0.75¬Na¬0.25¬mno¬3 ¬and Nd¬0.75¬Na¬0.25¬mno¬3¬ Manganites
Authors: Mannan Nurhabibah Nabilah Ab , Razali Sufia Aqilah , Shamsuddin Suhadir , Noh Mohamad Zaky , Mohamed Zakiah
Published: April 2019

This paper reports influences of cobalt (Co) substituted at Mn-site of Pr­0.75­Na­0.25Mn1-xCo­x­O­3 and Nd0.75Na0.25Mn1-yCoyO3 on structure, electrical transport and magnetic properties. All of the samples were prepared via standard solid state reaction method. X-ray diffraction measurement indicates that all samples were crystallized in an orthorhombic structure (space group Pnma). Resistivity measurement displays the x = 0 sample manifests an insulator behavior while metal-insulator transition was found at 108 K and 84 K for x = 0.02 and 0.05 respectively for Pr­0.75­Na­0.25Mn1-xCo­x­O­3. On the other hand, all of the samples for Nd0.75Na0.25Mn1-yCoyO3 showed insulator behavior down to low temperature and analysis of the resistivity change with respect to temperature, dlnρ/dT-1 versus T reveals a slope changes of resistivity have been recorded. Two obvious peaks were recorded from the analysis for y = 0.02 and 0.05 which can be suggested to the existence of charge order transition at the vicinity. For magnetic properties, x = 0 sample showed a paramagnetic-antiferromagnetic transition and further substitution of Co, x = 0.02 and 0.05, induce the paramagnetic-ferromagnetic transition and antiferromagnetic arrangement respectively. Meanwhile, further substitution of Co, y = 0.02 and 0.05 indicate antiferromagnetic transition with increasing T­N­­­ as Co increased.
Global Supply Chain Management: Challenges and Solution
Authors: Rajah Neerosha , Musa Haslinda , Nipis Victor , Kunjee Krishnan Prasad , Suppiah Sujitra , Fyrdaus Norull Ahmad Amir
Published: April 2019

Efficient supply chain management is crucial for survival and success in a turbulent world. Current economic crisis increases its importance even further. This conceptual paper reviews latest findings in the most relevant areas of supply chain management. The objective of this paper is to identify global supply chain management challenges and its solutions. In order to achieve the objectives, a thorough literature review was conducted; main findings are reviewed. This review has covered Indian industry, HaiHa’s supplier, and other global perspectives. Therefore, the challenges might be different according to the origin countries and industries. Besides, it is also found that the challenges can be mitigated with some alternatives derived from reviewing the case studies. The findings shown that in order to compete with global participation, efforts on seeking out the solutions would be much encouraged and embedded into the organizations.
Decision Trees for the Early Identification of University Students at Risk of Desertion
Authors: Albán Mayra , Mauricio David , . .
Published: April 2019

The student's dropout at the universities is a topic that has generated controversy in Higher Education Institutions. It has negative effects which cause problems in the social, academic and economic context of the students. One of the alternatives used to predict the dropout at the universities is the implementation of machine learning techniques such as decision trees, known as prediction models that use logical construction diagrams to characterize the behavior of students and identify early students that at in risk of leaving university. Based on a survey of 3162 students, it was possible to obtain 10 variables that have influence into the dropout, that’s why, a CHAID decision tree model is proposed that presents the 97.95% of the accuracy in the prediction of the university students’ dropout. The proposed prediction model allows the administrators of the universities developing strategies for effective intervention in order to establish actions that allow students finishing their university careers successful.
Partisipasi Masyarakat Sebagai Basis Kebijakan Penataan Ruang Publik dan Ruang Terbuka Hijau Kota yang Berkelanjutan
Authors: Adiyanta F.C. Susila
Published: April 2019

Pembangunan sebagai suatu kegiatan dapat mempengaruhi dan membawa dampak terhadap lingkungan serta alam sekitarnya. Berbagai aktivitas pembangunan di perkotaan membawa perubahan atas fungsi dan peruntukan tanah pada suatu kawasan harus disusun berdasarkan perencanaan tata ruang kota, prosedur teknis, kelembagaan, maupun pranata hukum. Berdasarkan fokus kajian tentang partisipasi masyarakat sebagai basis kebijakan penataan ruang publik dan ruang terbuka hijau kota yang berkelanjutan, hasil penelitian dengan pendekatan non doktrinal ini menunjukkan bahwa ruang publik dan ruang hijau kota merupakan satu kesatuan dan bagian yang tidak terpisahkan dari tata ruang kota dengan fungsi utama sebagai sarana interaksi sosial masyarakat kota, jantung keseimbangan ekosistem serta lingkungan hidup kota, serta wujud ekspresi nilai-nilai sosial, ekonomo, budaya dan aktualisasi wajah kehidupan masyarakat kota. Rekomendasi penelitian ini adalah diperlukan penegakan hukum dengan menindak dan pengenaan sanksi yang tegas dan berat kepada semua pihak yang kurang memperhatikan bahkan melanggar peraturan terkait aspek lingkungan, seperti ruang terbuka hijau di kawasan permukiman.Kata Kunci: Kebijakan Penataan Ruang Publik Dan Terbuka Hijau, Partisipasi Masyarakat
KEBIJAKAN HUKUM PIDANA DALAM UPAYA PENANGGULANGAN PROSTITUSI SEBAGAI PEMBAHARUAN HUKUM PIDANA
Authors: Anindia Islamia Ayu , Sularto R B
Published: April 2019

Prostitusi adalah masalah sosial yang sampai saat ini asal mulanya tidak dapat diketahui secara pasti, namun saat ini praktek prostitusi masih terus terjadi baik secara sembunyi-sembunyi maupun secara terang-terangan. Ada beberapa daerah di Indonesia yang dikenal sebagai daerah pemasok perempuan yang di perjual belikan. Tulisan ini bertujuan untuk mendorong adanya kebijakan dalam upaya penanggulangan prostitusi sebagai pembaharuan hukum pidana. Karena selama ini para pihak yang ikut terlibat dalam prostitusi tidak dapat dijerat oleh hukum pidana, hanya mucikari atau penyedia tempat yang dapat dijerat hukum pidana. Penulis memberikan ide pembaharuan sebagai upaya penanggulangan prostitusi, yaitu pengguna jasa prostitusi dijerat dengan pidana dan para pekerja seksual diberikan pidana berupa pelatihan kerja, rehabilitasi dan modal kerja sebagai upaya untuk mencegah kembali lagi menjadi pekerja seks komersial.Kata Kunci: Kebijakan; Prostitusi; Pembaharuan Hukum Pidana.
Effects of Different Hand Widths on Plyometric Push-up Performance
Authors: Nichols Isaac A. , Szivak Tunde K.
Published: April 2019

Nichols, IA and Szivak, TK. Effects of different hand widths on plyometric push-up performance. J Strength Cond Res 35(2S): S80–S83, 2021—The purpose of this study was to investigate the effects of hand width placement during the performance of plyometric push-ups. Ten male subjects (age: 24.14 ± 2.79 years, height: 178.14 ± 5.21 cm, and body mass: 91.55 ± 6.04 kg) performed 2 plyometric push-ups at 120, 150, and 170% of the subject's biacromial width (6 total push-ups) in a randomized order. Height (H), peak force (pF), peak power (pP), and rate of power development data were collected using a force plate. One-way repeated-measures analysis of variance showed no significant differences in performance measures across all hand widths. A secondary analysis using a mixed-effects linear regression model was performed due to the small sample size. Regression analysis showed a significant difference in pF (p < 0.05) between 120 and 170% hand widths. Study results suggest that although upper-body (UB) power output seems to be similar across varying hand widths, UB force development (pF) may be significantly affected by hand width during the plyometric push-up. Study results suggest that hand-width placement may impact plyometric performance measures and should be considered if the plyometric push-up is used to assess an individual's UB power. To the best of authors' knowledge, this is the first study to investigate the effects of varying hand widths on plyometric push-up performance.
Combined Squat and Light-Load Resisted Sprint Training for Improving Athletic Performance
Authors: Pareja-Blanco Fernando , Asián-Clemente José Antonio , Sáez de Villarreal Eduardo
Published: April 2019

Pareja-Blanco, F, Asián-Clemente, JA, and Sáez de Villarreal, E. Combined squat and light-load resisted sprint training for improving athletic performance. J Strength Cond Res 35(9): 2457–2463, 2021—This study aimed to analyze the effects of 5 training methods: squat (SQ), light-load sled towing (LST), heavy-load sled towing (HST), squat combined with LST (SQ + LST), and squat combined with HST (SQ + HST) on physical performance. Ninety-one physically active men were randomly assigned to one of the aforementioned training methods or a control group. Before and after the training period, a battery of tests was completed: 30-m sprint; change of direction (COD); countermovement jump (CMJ) and Abalakov jump (ABK); and estimated 1 repetition maximum (1RM) in squat. Training took place once per week for 8 weeks. SQ trained the squat exercise, HST trained resisted sprints with 80% body mass (BM) load, LST trained resisted sprints with 12.5% BM load, SQ + HST combined squat with 80% BM load resisted sprint, and SQ + LST combined squat with 12.5% BM load resisted sprint. The loads used in squat ranged from 40 to 55% 1RM. After the training program, SQ + LST showed improvements in 0- to 30-, 10- to 20-, and 10- to 30-m sprint times, whereas SQ + HST did not achieve significant enhancements over any sprint time. LST and HST improved over 0–20 and 10–30 m, respectively. SQ showed improvements in 20- to 30-m sprint time. Change of direction and CMJ performance were increased for HST, SQ + HST, and SQ + LST, whereas only SQ + LST improved ABK height. SQ, HST, SQ + HST, and SQ + LST increased 1RM. Squat training with low/moderate loads combined with LST (12.5% BM) may be an effective stimulus for improving leg strength, jump ability, COD, and sprint performance.
A Transdisciplinary Approach to Classify Thyroid Levels in Patients
Authors: Radhakrishnan Sujatha , Lakshminarayanan Aarthy Seshadri , Bakthav Radhakrishnan , Pandiasankar Gopinath Masila
Published: April 2019

Data mining is one of the most promising areas of research that has become increasingly popular in health care. The objective of this research article is to elucidate a transdisciplinary approach to classify thyroid levels in patients using data mining techniques. The data set consisting of more than 2 thyroid conditions along with the normal values listed 21 values. The classifier chosen carefully to get the optimized accuracy and falls in different classification category namely J48, random forest, and random tree from tree, decision table from rules, multilayer perceptron from functions, naïve Bayesian from Bayes, and AdaBoost from meta respectively. The J48 classifier displays tree that will assist with better interpretation based on the values and helps to easily determine new value combinations. The Thyropred System graphic is finally presented, which guides the diagnosis of thyroid disease. Thorough consultation with experts along with this prediction system guides the decision of further medication. The J48 classifier provides the best accuracy when compared with the other tested classifiers.
UPAYA PENGEMBANGAN KEPROFESIONALAN BERKELANJUTAN MGMP IPA KABUPATEN BATANG MELALUI PEDAMPINGAN PENELITIAN TINDAKAN KELAS (PTK)
Authors: Taufiq Muhamad , Wiyanto Wiyanto
Published: April 2019

Dalam rangka pembinaan untuk menjadi guru yang profesional, diperlukan Pengembangan Keprofesionalan Berkelanjutan (PKB). Pengembangan keprofesian berkelanjutan merupakan salah satu dari unsur utama yang kegiatannya dapat diberikan angka kredit. Sementara masih sering dialami kendala yang terjadi disaat guru membuat proposal maupun laporan penelitian dalam pembuatan latar belakang, landasan teori, teknik pengumpulan data, analisis data bahkan dalam kaidah dan lain-lain, seperti halnya yang dialami oleh guru-guru anggota Musyawarah Guru Mata Pelajaran (MGMP) IPA Kabupaten Batang. Guru-guru masih mengalami kendala membuat rancangan maupun pelaksanaan PTK karena keterbatasan kemampuan guru maupun pembimbing yang berasal dari Guru Pemandu. Kegiatan di MGMP IPA SMP Kabupaten Batang, sebagai wadah pengembangan kompetensi guru, khususnya dalam pembuatan Penelitian Tindakan Kelas (PTK) masih belum maksimal. Pengabdian kepada Masyarakat ini bertujuan untuk meningkatkan kemampuan guru IPA dalam merencanakan, melaksanakan, melaporkan, serta mempublikasikan hasil PTK pada jurnal ilmiah. Strategi yang digunakan untuk mencapai tujuan pengabdian masyarakat ini yaitu pelatihan dan pendampingan penyusunan PTK bagi guru-guru anggota MGMP IPA Kabupaten Batang. Kegiatan pelatihan dan pendampingan dilakukan melalui tahap analisis masalah, paparan materi, diskusi dan pada akhir sesi dilakukan pendampingan dalam merencanakan, melaksanakan dan mengevaluasi kegiatan PTK. Pada akhir kegiatan pengabdian guru sasaran telah menghasilkan proposal PTK dan telah memiliki wawasan pengetahuan cara mempublikasikan pada jurnal ilmiah yang akan dituju.
Evolution of Antibiotic Synthesis Gene Clusters in the Streptomyces globisporus TFH56, Isolated from Tomato Flower
Authors: Cho Gyeongjun , Kwak Youn-Sig
Published: April 2019

Streptomyces species are known to produce various bioactive metabolites that can prevent plant diseases. Previously, the Streptomyces strain TFH56 was found to inhibit the gray mold pathogen, Botrytis cinerea, in tomato flower. In this study, the genome sequence of strain TFH56 was acquired using the Pacific Biosciences RS II platform. Three linear sequences (7.67 Mbp in total) were obtained. Based on average nucleotide identity, strain TFH56 was classified as Streptomyces globisporus, which is consistent with the presence of a linear chromosome and linear plasmids. Moreover, as with other examples of S. globisporus, the genome of strain TFH56 included a caryolan-1-ol synthase gene, a conprimycin synthetic gene cluster, and a lidamycin synthetic gene cluster
Elementary characterization of samples of Portland cement, natural gypsum and phosphogypsum mortars from Brazil
Authors: Narloch Danielle Cristine , Paschuk Sergei Anatolyevich , Corrêa Janine Nicolosi , Casali Juliana Machado , Mazer Wellington , Torres Catarina Alzira Montenegro Peddis , De Lara Alessandro Luiz , Macioski Gustavo , Perna Allan Felipe Nunes
Published: April 2019

Portland cement, the basic ingredient of concrete and is manufactured by crushing, milling and proportioning limestone, sand, clay, iron ore and secondary materials such as shells, chalk or marl combined with shale slate or blast furnace slag, fly ash, gypsum, phosphogypsum, and some others. Evaluating the physical and mineralogical characteristics of the cement and its chemical composition is essential to establish the quality of the product. Therefore, the objective of this work was to characterize and quantify the most common chemical elements in the samples of Brazilian Portland cement, natural gypsum, and phosphogypsum mortars by means of X-ray dispersive energy spectroscopy (EDXRF), as well as to evaluate the strength of these mortars. For analysis of the compressive strength, initially prepared samples were submitted to a destructive mechanical test. Subsequently samples were milled and compacted to form thin tablets, which were submitted to the EDXRF analysis. The qualitative and quantitative analyzes showed that for phosphogypsum mortar the largest mass fractions were found of 49.8±2.5% (Si), 24.66±0.96% (S) and 22.10±0.42% (Ca). For gypsum mortar those values were found of 43.41±0.45% (Ca), 33.8 ± 0.8% (S) and 18.9±1.2% (Si), respectively; and for Portland cement mortar, the predominant elements in those samples have the mass fractions of 64.20±0.52% (Ca) and 27.3±1.5% (Si). The results showed that obtained values of mass fraction of the elements Si, S, K, Ca, Ti, Fe are in rather good agreement with quantities indicated for manufacture. Besides, gypsum and phosphogypsum presented almost the same composition and compressive strength.
Development of an automated system for the operation of an electron beam accelerator
Authors: Somessari Samir Luiz
Published: April 2019

Electron beam accelerators are used in many applications, such as basic physical research, chemistry, medicine, molecular biology, microelectronics, agriculture and industry, among others. The majority of the accelerators have electrons from a hot tungsten filament and their energy is increased as it passes through an electric field in the vacuum chamber. For industrial purposes, the most common model is Dynamitron®. At IPEN-CNEN/SP, there is an electron beam accelerator Dynamitron® Type (Manufactured by RDI - Radiation Dynamics Inc., 1978) model DC1500/25/4. The technology applied was available in the 60´s and 70´s, but, nowadays is obsolete. Moreover, there are not original spare parts for this equipment any longer. The aim of this work is to develop a nationalized automated operation system for the accelerator, to replace the old equipment. electron beam, accelerator, automated system, Dynamitron®
Thermoluminescent properties of LaAlO3:C crystals synthesized by solid state reaction applied to UV Dosimetry
Authors: Alves Neriene , Ferraz Wilmar Barbosa , Faria Luiz Oliveira
Published: April 2019

In this work we have investigated the thermoluminescent (TL) response of carbon doped lanthanum aluminate crystals grown by solid state reaction method. We conducted three syntheses by different combinations of Al2O3, La2O3 and 0.1 wt % of carbon atoms. The 1:1 mixture of aluminum and lanthanum oxide was mixed with 0.1wt.% carbon and annealed at 1700°C for two hours in a hydrogen atmosphere. The X-ray diffraction analysis revealed the formation of the rhombohedral LaAlO3 crystallographic phase. F and F + centers were identified by ultraviolet-visible spectroscopy. Fourier transform infrared spectroscopic data show higher and lower frequencies assigned to AlO6 octahedra in LaAlO3. The UV irradiations were carried out using a commercial 8W UV lamp. Thermoluminescence measurements were performed at a Harshaw 4500 TL reader. The three syntheses were very efficient to obtain carbon doped LaAlO3 crystals with high thermoluminescent output, for low exposure rates of UVR fields.
Radiochemical Methodologies Applied to Analytical Characterization of Low and Intermediate Level Wastes from Nuclear Power Plants
Authors: Monteiro Roberto Pellacani , Junior Aluísio Souza Reis , Kastner Geraldo Frederico , Temba Eliane Silvia Codo , De Oliveira Thiago César , Amaral Ângela Maria , Franco Milton Batista
Published: April 2019

The aim of this work is to present radiochemical methodologies developed at CDTN/CNEN in order to answer a program for isotopic inventory of radioactive wastes from Brazilian Nuclear Power Plants.  In this program  some radionuclides, 3H, 14C, 55Fe, 59Ni, 63Ni, 90Sr, 93Zr, 94Nb, 99Tc, 129I, 235U, 238U, 238Pu, 239+240Pu, 241Pu, 242Pu, 241Am, 242Cm e 243+244Cm, were determined  in Low Level Wastes (LLW) and Intermediate Level Wastes (ILW) and a protocol of analytical methodologies based on radiochemical separation steps and spectrometric and nuclear techniques was stablished.
X-ray diffraction pattern and relative crystallinity of irradiated arrowroot starch
Authors: Barroso Aline Gonçalves , GARCIA RAFAEL HENRIQUE , DEL MASTRO NÉLIDA LUCIA
Published: April 2019

After cereals, tubers and roots are the major source of starch for food and industrial uses. Arrowroot refers to any plant of the genus Marantha, but the term is most commonly used to describe the easily digested starch obtained from the rhizomes of Marantha arundinacae. The rhizomes of this herbaceous plant contain about 20% of starch. As few studies exist on arrowroot starch, the objective of this preliminary work was to study the X-ray diffraction (XRD) patterns of arrowroot starch when treated by γ-radiation with doses up to 15 kGy in a 60Co source. The XRD patterns of the arrowroot starch exhibited A-type crystalline arrangements with strong peaks at approximately 15º, 17º, 18ºand 23º (2θ). A slight increase of diffractogram peaks intensity was noticed after the irradiation process. The cristallinity index was calculated using Bruker DIFFRAC.EVA version 4.2 software. Relative crystallinity seems to increase with radiation doses, and this effect is more noticeable at low doses. That can be attributed to different radiation sensitivity among the amorphous and crystalline regions of the arrowroot starch molecule. Present results will contribute to elucidate the behavior under radiation treatment of this starchy component increasingly employed by the food industry.
Comparison of the radiochromic EBT2 responses for4 MV LINAC in calibration processes
Authors: Silva Sabrina Donato , Castro André L.S , Mendes Thais Melo , Nogueira Luciana B. , Campos Tarcisio Passos Ribeiro
Published: April 2019

Actually, cancer has gained a larger dimension and become a global public health problem. Radiotherapy (RT) is a neoplasia treatment and RT linear accelerators must undergo a strict dose quality control. Water or solid water phantoms can be used with this intuit. In recent years, radiochromic films with equivalent tissue composition have been widely used as dosimeters in the medical field. In this work the proposal was to analyze two distinct radiochromic film responses in water and solid water phantoms, a LINAC spectrum of 4MV beam. Solid water phantom, water phantom and EBT2 Radiochromic films were set in two distinct process of calibration. Films were exposed to a set of absorbed doses established by distinct monitor units (MU) specified in RT-center. Mathematical relations between the degree of red-intensity from digitized films and the absorbed dose for both methods were established. The coefficients of the polynomial function of the calibration curve were determined from the Origin software. The uncertainty of both processes was analyzed. The efficiency of the two calibration processes was set up. The adjustment of the calibration curve provided the coefficients of the second-order equation that relates the dose absorbed with the optical density of the film. The uncertainty regarding the calibration performed in water and solid water and the dose-error accuracy are in agreement with the literature. Both water and solid water were effective in calibration and can be used in routines of quality-control measurements. The results show that EBT2-radiochromic films are suitable to for dose-calibration in RT.
Co adsoption in kaolinite
Authors: Souza Eliel Silva , Silva Paulo Sergio Cardoso
Published: April 2019

Adsorption of metal ions in clay minerals has been used as an alternative to water and effluents treatment. Kaolinite is a clay mineral that presents low specific surface area and exchange ion capacity. Nevertheless, structural modifications can be achieved by means of acid or thermal activation. In this paper, it was studied the surface area of kaolinite/bentonite, kaolinite/activated carbon mixtures, thermal activated kaolinite and thermal activated kaolinite/activated carbon mixture. The mixture of kaolinite/activated carbon was tested for pH, contact time, interfering ions and initial concentration effects in the cobalt adsorption. Results showed that the optimized parameters are pH 6 and contact time of 30 min. Chromium acted as a competitive ion, zinc does not appear to have affected adsorption while iron seems to have favored it. Langmuir and Freundlich isotherms indicated that the adsorption of Co in the mixture of kaolinite/activated carbon is a spontaneous process.
Reproduction of a left-breast 3DCRT field-in-field radiation therapy planning in an anthropomorphic and anthropometric phantom
Authors: Nogueira Luciana Batista , Geraldo Jony Marques , Barsanelli Cristiane , Aquino Jean Carlos , Campos Tarcísio Passos Ribeiro
Published: April 2019

The proposal of this study was to reproduce the dosimetry established by a treatment planning system (TPS) following a 3D conformational radiation therapy (3DCRT) protocol of two parallel-opposite fields applied to the left-breast in a thorax phantom, with the complementary use of the field-in-field technique. The computed tomography (CT) images of the thorax phantom were transferred to the XiO version-5 for the elaboration of the breast teletherapeutic planning with 2 Gy per day, in 25 fractions, with prescribed dose of 50 Gy. A set of ten EBT2 radiochromic films were irradiated at doses gradually. The values of RGB (Red, Green, Blue) of the films were obtained by scanning and data transformed in optical density (OD), whose values were used to construct the calibration curve. Radiochromic films were positioned outside and inside of the thorax phantom. After phantom radiation at the linear accelerator 6 MV Elekta Precise were measured the intensities of the films in RGB by software ImageJ, transformed in OD and converted in bidimensional dose distributions, applying the calibration curve. In addition, graphics and dose-volume histograms (DVH) were developed. The dose measurements in the glandular-TE in breast did not present statistically significant differences in relation to values at equivalent positions generated in the TPS. The organs at risk received doses below the reference values, according to TPS. It was possible to reproduce the dosimetry prescribed in TPS into the thorax phantom exposed to a breast conformational teletherapy. The use of the radiochromic films in dosimetry proves to be increasingly useful and shall become routine in radiotherapy services.
Seaweeds as source of the essential elements
Authors: Albuquerque Caroline Rodrigues , Maihara Vera Akiko , De Lima Cassio Bessa , Silva Paulo Sergio Cardoso
Published: April 2019

Overtime seaweeds have been used as a food mainly due to their high nutritional value. This type of food is considered as functional food and contributes to the nutritional human requirements, being beneficial to human health. In this study 13 edible seaweed samples acquired in the marked of São Paulo city were analyzed and the concentrations of elements Cl, K, Mg, Mn and Na were determined by Instrumental Neutron Activation Analysis (INAA). The following edible seaweeds were analyzed: Nori (Porphyra umbilicates); Hijiki (Hijikia fusiforme); Kombu (Laminaria sp.) and Wakame (Undaria pinnatifida) species from China, USA, Japan and South Korea. The Undaria pinnatifida species presented the highest Na concentration and the lowest K level. The highest variation was obtained for Mn in the Porphyra umbilicates species.
Electron beam irradiation of textile effluents and non-ionic ethoxylated surfactant for toxicity and color removal
Authors: Borrely Sueli Ivone , Silva Leonardo Gondim de Andrade , Del Sole Stephanie Valência , Garcia Vanessa Silva Granadeiro , Boiani Nathalia Fonseca , Rosa Jorge Marcos
Published: April 2019

Textile industry has an expressive scenario in the world economy and Brazil is the 5th in the textile production. By 2015, Brazilian textile production represented US $ 39.3 billion, accounting for more than 1.8 million tons of fabric. The effluents from textile industry are highlighted by quantity of wastewater discharged and variety of substances (dyes, bleaching agents, surfactants, salts, acids, among others). Such compounds often prove to be toxic to aquatic biota. This present study aims to assess toxicity of whole effluents, before and after irradiation (by electron beam accelerator, EBI). In addition, the reduction of the effluent color after irradiation is also very important. Daphnia similis and Vibrio fischeri were the biological systems applied for toxicity evaluations.  Previous results demonstrated the surfactant as the main toxic compound, in the untreated and irradiated forms, EC 50 = 0.44 ppm ± 0.02 (untreated); EC 50 = 0.46 % ± 0.07 (irradiated). The irradiation was effective for reducing color of the effluent, starting from 0.5 kGy. EB irradiation may be proposed as an alternative treatment for the final effluent from textile processing, mainly for reuse purposes.
Establishment of cementation parameters of dried waste from evaporation coming from NPP operation
Authors: Faria Érica Rodrigues de , Tello Clédola Cássia Oliveira de , Costa Bruna Silveira
Published: April 2019

The radioactive wastes generated in Brazil are treated and sent to initial and intermediate storages. The “Project RBMN” proposes the implantation of the Brazilian repository to receive and permanently dispose the low and intermediate level radioactive wastes. The CNEN NN 6.09 standard – Acceptance Criteria for Disposal of Low and Intermediate Radioactive Wastes (LIRW) – establishes the fundamental requirements to accept the wastes packages in the repository. The evaporator concentrate is one of liquid wastes generated in a Nuclear Power Plant (NPP) operation and usually it is cemented directly inside the packing. The objective of this research is to increase the amount of the incorporated waste in each package, using the drying process before the cementation, consequently reducing the volume of the waste to be disposed.  Drying and cementation parameters were established in order to scale-up the process aiming at waste products that comply with the requirements of CNEN standard. The cementation of the resulting dry wastes was carried out with different formulations, varying the amount of cement, dry waste and water. These tests were analyzed in order to select the best products, with higher waste incorporation than current process and its complying the requirements of the standard CNEN NN 6.09.
Bentonite and Montmorillonite maturation with Águas de Lindóia, Peruíbe and Poços de Caldas waters
Authors: Torrecilha Jefferson Koyaishi
Published: April 2019

This study aims to characterize the artificial peloid obtained by maturing bentonite and montmorillonite with Águas de Lindóia, Poços de Caldas and Peruíbe water for three months. The pH, moisture, organic matter content, loss on ignition and swelling power of matured and non-matured samples were measured for physicochemical characterization. The elemental concentration was determined by instrumental neutron activation analysis. Results showed that pH, moisture (%) and LOI (%) at 1000 ºC did not change after maturation for all samples and an increase in the organic matter (%) was noted for all samples, mainly in the peloids treated with Peruíbe sea water. The concentration of As, Ba, Br, Ca, Ce, Co, Cr, Cs, K, La, Na, Yb and Zn has changed after the maturation process in both clays and the Br and Na concentration has changed in both clays when matured with sea water from Peruíbe.
Rites of passion
Authors: Martin J. , Zappavigna Michele
Published: April 2019

Youth Justice Conferencing is a form of diversionary justice for adolescent offenders introduced in New South Wales, Australia in 1997. In Youth Justice Conferences adolescent offenders meet with their victim and other relevant members of the community to discuss relatively minor offences and work out some form of community service by way of reparation (instead of going to court, getting a criminal record, and possibly serving time in juvenile detention). For some commentators conferences are interpreted as a rite of passage involving a passion play of remorse, apology and forgiveness as young offenders are positioned to say sorry for what they have done. This paper explores from a functional linguistic perspective what might be involved in an exchange of feelings of this kind, taking into account recordings of conference practice explored in Zappavigna and Martin (2018).
From speech role to social role
Authors: Ranran Zhang
Published: April 2019

In this paper we explore judge’s social roles in criminal trials in China based on the speech roles assigned to them when they interact with other parties. negotiation, a system in Martin’s discourse semantics for conversational analysis, is the descriptive framework used in this study. The analysis indicates that most of the judge’s moves are informative, however, they are endowed with performative effect caused by the highly institutionalized context. Judge’s discourse in Chinese courtroom is characterized by what is known as ‘linguistic service’, discursively reflected as the conflation of knowledge move and action move. When the conflation is related to the trial’s staging structures, it predicts discourse within other fields, involving legal rights or responsibilities, legal facts, personal information, among others. In addition to move conflation, another two features are noted in judge’s discourse - move change and move ellipsis. We conclude that the exchange patterns in judge’s discourse suggest three types of social role taken by the judge in criminal courts in China: courtroom texturing, discourse controlling and knowledge building.
Conceptual metaphor of the nation-state in newly-independent Africa
Authors: Gachigua Sammy
Published: April 2019

At independence, African countries were faced with the task of creating stable nation-states from people with diverse visions of independence, as well as crafting metaphors of states that defined the relationships between the various actors therein. In Kenya, as is discernable during the debate of the Preservation of Public Security Bill in 1966, Kenyatta’s regime activated a state-as-family metaphor. The metaphor fused the state, the government and the President as a trinity imbued with eternal benevolent and moral authority of a father. The public were conceptualized as children. Critics of government were conceived as delinquent children. The regime also intertextually appropriated discourses of tradition, developmentalism, and Hobbesian Leviathan to craft an ideology of order that buttressed a version of state-as-family metaphor inimical to the aspirations of freedom and selfdetermination that animated the struggle for independence by the Kenyan people.
Bases teórico-pedagógicas do atendimento educacional especializado em duas redes municipais de ensino no Brasil
Authors: Santos Ivone Rodrigues dos , Silva Régis Henrique dos Reis
Published: April 2019

Este artigo apresenta e discute as bases teórico-pedagógicas que subsidiam as orientações para a organização do Atendimento Educacional Especializado (AEE) em duas redes públicas municipais de ensino, sendo uma no estado de Goiás e outra no estado do Paraná. Inicialmente, apontamos as implicações das teorias educacionais que orientam a atual política educacional na perspectiva inclusiva. Em seguida, subsidiados pelos pressupostos teórico-filosóficos da Pedagogia Histórico-Crítica e da Psicologia Histórico-Cultural, verificamos que os municípios articulam de forma distinta a implementação do AEE. Fundamentado por um conjunto de bases teóricas que nomeamos de miscelânea pragmática constatamos que o AEE é interpretado como estratégia para compensar deficiências de diferentes ordens, limitando-se a um quadro naturalizante de estruturação do ser humano, ou, de outro modo, busca formas de promover o desenvolvimento humano, sem perder de vista sua especificidade pedagógica, o que denominamos de miscelânea crítica. Assim, embora existam limites nas ações desenvolvidas pelos municípios diante das políticas sociais e econômicas, em âmbito nacional e mundial, a compreensão dos educadores/as acerca da teoria educacional como orientadora da práxis educativa é um elemento fundamental do ato educativo em uma perspectiva crítica e superadora da realidade da educação brasileira nas primeiras décadas do século XXI.
O Recado do Morro: a estória da experiência formativa de Pedro Orósio
Authors: Pucci Bruno , Cavaggioni Gloria Bonilha , Campos Luis Fernando Altenfelder de Arruda
Published: April 2019

Este ensaio se propõe a interpretar o conto “Recado do Morro”, de Guimarães Rosa, em diálogo com as reflexões estético-filosóficas de Theodor Adorno. O que nos dá base para o empreendimento é o fato de os contos de Guimarães Rosa apresentarem uma densidade semântica, possibilitando uma pluralidade de leituras. Nesta perspectiva, destacamos cinco eixos teórico-metodológicos para nos orientar nessa empreitada: a).  a tensão entre a mimese e a racionalidade, entre o reino da natureza, da sensibilidade e as dimensões do construtivo e das técnicas; b). a constelação – recurso utilizado por Adorno para caracterizar, com mais proximidade, o objeto de conhecimento -- como procedimento metodológico de Rosa na caracterização de seus personagens centrais; c). A obra de arte como crítica da sociedade de onde ela proveio; d). O Recado do Morro como uma “estória de formação” de seu protagonista. À medida que a estória da canção vai se formando, também o protagonista da estória vai constituindo sua identidade pessoal; e). A obra de arte como irrupção da objetividade na consciência subjetiva de Pedro Orósio
O tecnicismo/tarefismo nos cursos de formação profissional em educação física: algumas reflexões
Authors: Teixeira Marcelo De Farias
Published: April 2019

O objetivo do artigo é analisar e realizar reflexões sobre o tecnicismo/tarefismo nos cursos de formação profissional em Educação Física. Como pano de fundo abordamos a história da influência militar na área e um olhar crítico sobre o influxo de ex atletas, destaca-se também os maiores equívocos cometidos dentro da temática. O método utilizado foi o dedutivo, com pesquisa bibliográfica em livros de sociologia, antropologia, história, esportes, lazer e política. Conclui-se que de fato o tecnicismo e tarefismo se apresentam como um grande problema a ser enfrentado não só pela graduação dos cursos de Educação Física das universidades que ofertam as disciplinas de lazer e esporte escolar, mas também isso acaba se estendendo aos programas de pós-graduação, o que tende a complicar ainda mais a situação, pois este é o local onde justamente deveria haver uma maior aproximação e diálogo entre as duas vertentes da Educação Física, seja o da performance/biodinâmica ou da cultura e práticas corporais.Palavras-chave: Tecnicismo; Tarefismo; Educação Física.
E-learning in healthcare professional education: an analysis of political, economic, social, technological, legal and environmental (PESTLE) factors
Authors: Walsh Kieran , Bhagavatheeswaran Lalitha , Roma Elisa
Published: April 2019

This article was migrated. The article was marked as recommended. Healthcare professional education is a vitally important part of the healthcare system. E-learning as a means of delivering this education has grown in significance over the years. Research evidence shows that e-learning can help healthcare professionals learn new knowledge and skills. E-learning is fundamentally about education, but it is also a social phenomenon and part of a wider technological revolution. The provision of e-learning for healthcare professional development can be influenced by a number of different factors. These include political, economic, social, technological, legal and environmental factors (PESTLE). All these phenomena influence e-learning in healthcare professional education - their degree of influence often depends on the exact context that is being discussed. A PESTLE analysis uses a framework of these macro-environmental factors that can be used in the strategic analysis of a specific domain. This paper describes an analysis of political, economic, social, technological, legal and environmental factors that can influence e-learning in healthcare professional education.
Redes Sociais: É Possível sua Inserção no Formato EaD? Reflexões Sobre a Gestão a Partir do Uso da Ferramenta Live do Facebook em Cursos de Graduação em Jornalismo
Authors: Crispino Santos Fabiana , Martins Motta Magalhães Mirian , Vidal Oliveira Elaine
Published: April 2019

O presente artigo tem como propósito refletir sobre a gestão de um curso em graduação em Jornalismo oferecido no modelo EAD a partir da introdução de práticas que usem as redes socais. Desde que as rotinas produtivas das redações jornalísticas foram modificadas por conta das novas ferramentas que a tecnologia trouxe, entre elas as redes sociais, o ensino nos cursos de graduação teve que ser revisto e adaptado. Assim como ocorreu nas graduações presenciais, os cursos oferecidos a distância também devem se adequar. Desse modo, o artigo busca refletir sobre o papel da gestão, o que de imediato ela precisa observar e como implementar os recursos oferecidos, usando como estudo de caso a ferramenta Live do Facebook, muito usada ultimamente na prática jornalística.
Polaron in Electric Field and Vibrational Spectrum of Polyacetylene
Authors: Astakhova T.Yu. , Vinogradov G.A.
Published: April 2019

In the present paper, the evolution of a polaron in polyacetylene in electric field is studied in detail. It is shown that the dependence of the polaron velocity on the applied field
is determined by the peculiarities of the vibrational spectrum of polyacetylene. The spectrum is calculated numerically using the Hessian, the matrix of the second derivatives of
the potential energy of the system. A supersonic polaron moving in an electric field generates coherent vibrations of the optical branch of the spectrum of the polyacetylene.
The phase velocity of these oscillations is equal to the polaron velocity. An additional condition for the excitation of a mode with a certain phase velocity is its correspondence
to the Fourier spectrum of an impulse with polaron shape.
Endovideosurgery in treating large nonparasitic hepatic cysts
Authors: Sigua Badri V. , Zemlyanoy Vyacheslav P. , Kachiuri Andrey S. , Gurjii Dmitrii V. , Abdulaeva Raisat M. , Vinnichuk Sergey A. , Zakharov Evgeni A.
Published: April 2019

Background. Liver cysts despite their low prevalence are an important issue in surgical hepatology. Among the indicatiors of the problem are often on the one hand, an asymptomatic course and on the other hand, possible complications such as compression of vessels and bile ducts, suppuration with abscesses and their rupture leading to peritonitis.
Material and methods. The article presents the experience of treating the patient with a large nonparasitic liver cyst, as well as the technical aspects of surgery and the immediate results of the treatment.
Results. The use of endovideosurgical technologies in treating patients with large nonparasitic liver cysts reduces the length of hospital stays, minimizing postoperative complications, as well as the period of rehabilitation.
Conclusion. The use of external drainage of nonparasitic liver cysts under the control of medical imaging methods is preferable in the presence of infectious complications of cysts as a preparatory stage for radical treatment. Laparoscopic treatment of patients with large nonparasitic liver cysts is characterized by the lowest complication and recurrence rates and for repeated surgical interventions.
A coordinated satellite and terrestrial microwave backhaul for cellular mobile in remote and regional Australia
Authors: Crouch Andrew
Published: April 2019

For several years prior to the Australian Federal elections in September 2013, Commonwealth Government telecommunications policy and legislation focussed exclusively on the fixed services National Broadband Network.  This distracted broader public attention from the need for cellular mobile expansion in the more sparsely populated areas of the country.   Commercial returns in these areas are clearly inadequate for unilateral private operator investment, making government participation crucial.  Thus a commitment from the newly elected Coalition Government for a Mobile Black Spot co-investment programme marks a significant change of prospects for remote and regional Australia.
This paper proposes that the joint program should commence with a comprehensive financial and technical study of backhaul and base station technology options, to identify the most cost effective approaches.  These options include the coordinated provisioning of modern satellite and terrestrial backhaul systems, utilising and upgrading existing HCRC microwave system infrastructure, and the implementation of small cell base station types.
It is especially timely for these opportunities to be considered now, during the present pre-launch design and construction phase for the NBN Ka band satellites.