bluuebunny/crossref_metadata_2025 huggingface dataset:
PHENOMENON OF DEMIKHOV. In the Sklifosovsky Institute (1960–1986). Scientifc Revolution in Transplantation (1960–1964). Achievements of the USA and the USSR in the feld of transplantation and transplant immunity (1962)
Authors: Glyantsev S. P.
Published: March 2019

Correspondence to: Sergey P. Glyantsev, Prof., Dr. Med. Sci., Head of the Department of the History of Cardiovascular Surgery at A.N. Bakoulev National Medical Research Center for Cardiovascular Surgery, Head of the Medical History Unit within the Medical History Department at N.A. Semashko National Research Institute of Public Health, e-mail: spglyantsev@mail.ru Received: August 08, 2018 Accepted for publication: September 12, 2018 The article presents the evidence of a scientific revolution in transplantology that occurred in the world in 1960-1964 with the shift of the paradigm from the impossibility of homoplastic organ transplants to the hope on their feasibility. It began in 1960 with awarding the Nobel Prize to P. Medawar and F. Burnet for the discovery of artificial immunological tolerance, it had its continuation in 1961–1962 with the advances in experimental transplantation of vital organs undertaken in conditions of mechanical circulation (R. Lower, N. Shumway) and immunosuppression (K. Reemstma), and completed with human transplantations of lung in 1963 and of heart in 1964 (J. Hardy). In those years, the concept of mechanical support for an ill heart by using an implanted mechanical assist device was developed and introduced (1963). But even against that background, V.P. Demikhov's achievements in homologous organ transplantation and the development of biological techniques to overcome tissue incompatibility looked impressive. His highest achievement was the transplantation of a supplemental heart to the dog Grishka in June 1962, and the dog survived with it for 141 days. However, after the discoveries in the field of transplantation immunity, the train of experimental transplantation where V.P. Demikhov was riding, began picking up speed very quickly, and the Soviet surgeons were to jump on its footboard.
PEMAHAMAN DAN PERSEPSI PENGHUNI PONDOK PESANTREN AL-ITTIHAD KAWASAN SANTRI PUTRA TERHADAP SANITASI
Authors: Hasbiah Astri Widiastuti , Rusmaya Deni , Saputra Ade
Published: March 2019

Pesantren Al-Ittihad yang terletak di Kabupaten Cianjur, Jawa Barat merupakan sarana pendidikan dengan fasilitas asrama bagi santri-santrinya. Kegiatan di asrama memiliki kemiripan dengan kegiatan domestik jika ditinjau dari segi sanitasinya. Untuk mempertahankan kualitas hidup dan belajar para santri, diperlukan kondisi fasilitas sanitasi yang memadai dari segi kualitas dan kuantitas. Penelitian ini bertujuan untuk mengidentifikasi kondisi fasiltas sanitasi di kawasan santri putra Pesantren Al-Ittihad berdasarkan pengamatan dan wawancara kepada penghuninya. Hasil penelitian menunjukkan bahwa sarana air bersih dan air minum masih baik, secara kualitas maupun kuantitas. Sarana air limbah masih mencukupi namun memerlukan saluran untuk pengolahan grey water. Saluran drainase sudah tersedia dengan baik, namun perlu peningkatan pemeliharaan agar tidak terjadi pendangkalan atau tertutup sampah. Dalam pengelolaan sampah, walaupun sudah terdapat pemilahan, namun masih terdapat sisa sampah yang tidak ditangani dengan baik, terutama di sekitar tempat pembuangan sampah sementara.
Using an Adaptive Filtration to Improve Adaptive Optical Systems Performance. Analytical Review
Authors: Shanin Yu. I.
Published: March 2019

For adaptive optical systems (AOS) installed in the optical path of aircraft-based laser systems, the presence of changing input light signals is typical. A wave-front sensor processes these signals. The quality of the radiation wave-front correction depends on how well the rapidly changing input signal is received and processed. When dealing with such signals, an adaptive filtration (AF) is used, which allows automatic adaptation to the changing input signal. The adaptive filtration is used in control algorithms for adaptive optical systems.

The paper gives a brief theoretical AF background as applied to the AOS. The AF with feedback can be used for the following: a) predictions, b) identification of an unknown system, c) balancing of characteristics, d) disturbance rejection. The AF main point is to control the weighting factors of the input signal, which form the output signal. Under control, the difference between the reference and output signals is minimized. Mathematically, this comes down to defining the global minimum of the objective function. Among the search methods for this minimum, the paper considers the following ones: the Newton's method, the steepest-descent method and its modified version - the least square error method, and the recursive AF algorithm using the least squares criterion. The choice requirements for an adaptive algorithm are formulated.

The paper considers direct application of the AF methods in the control algorithms of the AOS used in the airborne laser systems. Analyzes both the works on improving operation of classical AOS control loops (based on the PID-controllers with time-fixed gains) by adding various adaptive devices to the circuit, and the works on direct use of the adaptive filters and their relevant control algorithms. Adaptive filtering has shown the positive results both in suppressing the multiple narrow-band vibrations inherent in the aircraft and in broadband jitter due to the turbulent atmosphere, including the aero-optical wave-front aberrations of laser radiation.

For more successful application of the adaptive filtering methods for AOS control, further interpretation and research into capabilities of their practical implementation for specific applications of adaptive optics is required.
Analysing Computer-Aided Manufacturing Systems and Optimising Work Sequence of Complex Shell Parts
Authors: Kravchenko I. I. , Bukharov S. V.
Published: March 2019

A track record in application of multi-operational CNC machines shows that their using is efficient only in the case of a significant increase in productivity rate and a dramatically reduced time-to-market of new products. Manufacturing capabilities of multi-operational machines (MOM) have been most completely revealed when machining the complex shell parts. The more complicated is a design of the part and the more is the number of its surfaces to be machined and the number of tools desirable for its machining and positioning, the more efficient is the use. One way to improve the MOM machining rate is to reduce nonproductive machine time by decreasing the mutual overlap processing of the movable operating elements of the machine.

To solve this problem, the computer-aided manufacturing (CAM) systems have been analysed. The analysis has shown that their capabilities are wide enough, however, these systems can calculate only the total execution time of the main manufacturing steps, but cannot calculate the nonproductive machine time and minimise it. This conclusion suggests that the task of optimizing the processing sequence is relevant. The research has shown that the problem can be solved by dynamic programming methods, one of which is the solution of the traveling salesman problem (the Bellman’s method). With a known processing schedule of all the elementary surfaces of the shell part, i.e. the known number of the manufacturing steps to be performed, each step is represented as a vertex of some graph, and technological links between the vertices of its edges. A mathematical model developed on the Bellman principle, which is adapted to the manufacturing tasks allows us to minimise mutual overlap processing time of the operating elements of the machine to perform all the steps in the optimal sequence. Based on the MOM model (1000VBF), the mathematical model has passed tests when machining the shell part with 26 manufacturing steps to reach up to 12% reduction of the nonproductive machine time, as a result of optimization.
Structural Analysis of Product and Computer-Aided Assembly Planning in AssemBL Software Package
Authors: Bozhko A. N.
Published: March 2019

Computer-aided design of assembly processes (Computer aided assembly planning, CAAP) of complex products is an important and urgent problem of state-of-the-art information technologies. Intensive research on CAAP has been underway since the 1980s. Meanwhile, specialized design systems were created to provide synthesis of assembly plans and product decompositions into assembly units. Such systems as ASPE, RAPID, XAP / 1, FLAPS, Archimedes, PRELEIDES, HAP, etc. can be given, as an example. These experimental developments did not get widespread use in industry, since they are based on the models of products with limited adequacy and require an expert’s active involvement in preparing initial information. The design tools for the state-of-the-art full-featured CAD/CAM systems (Siemens NX, Dassault CATIA and PTC Creo Elements / Pro), which are designed to provide CAAP, mainly take into account the geometric constraints that the design imposes on design solutions. These systems often synthesize technologically incorrect assembly sequences in which known technological heuristics are violated, for example orderliness in accuracy, consistency with the system of dimension chains, etc.

An AssemBL software application package has been developed for a structured analysis of products and a synthesis of assembly plans and decompositions. The AssemBL uses a hyper-graph model of a product that correctly describes coherent and sequential assembly operations and processes. In terms of the hyper-graph model, an assembly operation is described as shrinkage of edge, an assembly plan is a sequence of shrinkages that converts a hyper-graph into the point, and a decomposition of product into assembly units is a hyper-graph partition into sub-graphs.

The AssemBL solves the problem of minimizing the number of direct checks for geometric solvability when assembling complex products. This task is posed as a plus-sum two-person game of bicoloured brushing of an ordered set. In the paradigm of this model, the brushing operation is to check a certain structured fragment for solvability by collision detection methods. A rational brushing strategy minimizes the number of such checks.

The package is integrated into the Siemens NX 10.0 computer-aided design system. This solution allowed us to combine specialized AssemBL tools with a developed toolkit of one of the most powerful and popular integrated CAD/CAM /CAE systems.
Computational Experiments to Evaluate the Approaches to the Modeling of Viscoelastic Plates Motion Based on Various Theories
Authors: Khudayarov B. A.
Published: March 2019

Mathematical and computer modeling of the flutter of elements and units of the aircraft design is an actual scientific problem; its study is stimulated by the failure of aircraft elements, parts of space and jet engines. In view of the complexity of the flutter phenomenon of aircraft elements, simplifying assumptions are used in many studies. However, these assumptions, as a rule, turn out to be so restrictive that the mathematical model ceases to reflect the real conditions with sufficient accuracy. Therefore, results of theoretical and experimental studies are in bad agreement.

At present, the problem of panel flutter is very relevant. Improvement of characteristics of military and civil aircraft inevitably requires reducing their weight, and consequently, the rigidity of paneling, which increases the possibility of a panel flutter. The concept of creating the aircraft with a variable shape, which would inevitably lead to a reduction in paneling thickness are actively discussed. Finally, the use of new materials and, in particular, composites, changes physical properties of the panels and can also lead to a flutter.

The above-mentioned scientific problem gives grounds to assert that the development of adequate mathematical models, numerical methods and algorithms for solving nonlinear integral-differential equations of dynamic problems of the hereditary theory of viscoelasticity is actual.

In connection with this, the development of mathematical models of individual elements of aircraft made of composite material is becoming very important.

Generalized mathematical models of non-linear problems of the flutter of viscoelastic isotropic plates, streamlined by a supersonic gas flow, are constructed in the paper on the basis of integral models. To study oscillation processes in plates, a numerical algorithm is proposed for solving nonlinear integro-differential equations with singular kernels. Based on the developed computational algorithm, a package of applied programs is created. The effect of the singularity parameter in heredity kernels on the vibrations of structures with viscoelastic properties is numerically investigated. In a wide range of changes in plate parameters, critical flutter velocities are determined. Numerical solutions of the problem of viscoelastic plate flutter are compared for different models. It is shown that the most adequate theory for investigating a wide class of problems of the hereditary theory of viscoelasticity is the geometric nonlinear Kirchhoff-Love theory with consideration of elastic waves propagation. It is established that an account of viscoelastic properties of plate material leads to 40-60% decrease in the critical flutter velocity.
II Jornadas Argentinas de Aracnología - Libro de Resúmenes
Authors: González Alda
Published: March 2019

II Jornadas Argentinas de Aracnología- Libro de Resúmenes19 al 21 de septiembre de 2018CCT CONICET La PlataOrganizado por:CEPAVE: Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata-CONICETINIBIOLP - Facultad de Ciencias Médicas, Universidad Nacional de La Plata -CONICET Comisión Organizadora Alda GonzálezMónica CunninghamFernando GarcíaAldana LainoSergio Rodríguez GilSofía RomeroCecilia GabelloneAndrea ArmendanoSandra GonzálezGuillermo ReboredoLuis Giambelluca Colaboradores Pablo AddamoFlavia CassinelliNicolás LischettiKevin PonsFrancisco GiambellucaCarolina Abril CasanovasMatías Bianco
Proceedings of the Sixth Quadrennial Meeting of the International Heteropterists´ Society
Authors: Melo María Cecilia , Dellapé Pablo M. , Montemayor Sara , Dellapé Gimena , Olivera Leonela , Minghetti Eugenia , Varela Pablo
Published: March 2019

3 - 7 de December 2018, Museo de La Plata, Argentina Program Committe:M. Cecilia MeloPablo M. DellapéSara I. MontemayorGimena DellapéLeonela OliveraEugenia MinghettiPablo S. VarelaDivisión Entomología, Museo de la PlataFacultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata
Rodent Control Strategies in Hospitals
Authors: Desoky Abd El-Aleem Saad
Published: March 2019

An infestation of rodents in a healthcare facility is especially dangerous because these pests can carry disease and spoil food with the bacteria and viruses they harbor in their saliva and droppings. Exposure to dangerous pathogens could be disastrous for already health-compromised patients. The aim of the study is to implement an integrated control program for rodents inside hospitals and to clarify the most important preventive methods that can be used in the control process and to make some important observations in the application of methods of integrated control of rodents to obtain the best program for rodent control in hospitals.
Indigenous Employment Policy and Foreign-Owned Corporation Employee’s Well-Being in Liberia
Authors: Bankole Taofik Olatunji , Gray Daniel Denny , Oyebode Abiodun Oluwaseun , Lawal Gbelimu Elizabeth
Published: March 2019

Every country institutes policy to take a course of action in favour of its citizens’ welfare. The view of indigenization policy in alignment with employment and workers treatment in Liberia takes different dimension. Liberia problem of unemployment cannot be compared to its underemployment and bad working conditions. The Liberian Indigenous policy has not reaped its fruit with marginalization, exploitation dispossession and poverty in commonplace. This study addresses the ineffectiveness of the indigenous employment policy and the state of workers’ well-being in foreign corporations in Liberia. This study adopts cross sectional method, and employs primary data. Information from 400 employees working with foreign-owned corporation was extracted from survey conducted in 2018 by the authors on the state of welfare of foreign-owned corporations’ employees in Liberia. The key explanatory variables are healthcare, social insurance, safety measures, stable job assignment, stable work hour, promotion on the job, and job security. The binary logistic regression was applied using version 22 of SPSS to examine association between the response and explanatory variables. The outcomes of this study showed that indigenous environmental policy was significant with worker’s well-being (p<0.05). The study concluded that indigenous employment policy has significant influence on the foreign-owned corporation workers’ well-being in Liberia.
Under Critical Scrutiny A Normal Task for Swedish Executive Municipal Healthcare Managers
Authors: Wramsten Wilmar Maria , Jacobsson Christian , Ray Jeremy , Dellve Lotta , Låstad Lena
Published: March 2019

Swedish Human Service Organisations (HSOs) operate under high demands of transparency. In this study, executive municipal healthcare managers’ dealings with the Media were mapped. 81% had experiences of dealing with the Media under critical scrutiny. 20% of the respondents were aware of whether their organisation had a media strategy. The respondents received support during media scrutiny mainly from their management team, subordinates, family and friends. The respondents who received support from their management team or the communication department felt that the depiction of their organisation was more correct. The results indicate that a strategy including activities from the management team or the communication department would contribute to managers feeling more satisfied with media depictions of their organisation.
Mappism: formalizing classical and artificial life views on mind and consciousness
Authors: Bładek Iwo , Komosinski Maciej , Miazga Konrad
Published: March 2019

Throughout centuries philosophers have attempted to understand the disparity between the conscious experience and the material world – i.e., the problem of consciousness and the apparent mind–body dualism. Achievements in the fields of biology, neurology, and information science in the last century granted us more insight into processes that govern our minds. While there are still many mysteries to be solved when it comes to fully understanding the inner workings of our brains, new discoveries suggest stepping away from the metaphysical philosophy of mind, and closer to the computational viewpoint. In light of the advent of strong artificial intelligence and the development of increasingly complex artificial life models and simulations, we need a well-defined, formal theory of consciousness. In order to facilitate this, in this work we introduce mappism. Mappism is a framework in which alternative views on consciousness can be formally expressed in a uniform way, thus allowing one to analyze and compare existing theories, and enforcing the use of the language of mathematics, i.e, explicit functions and variables. Using this framework, we describe classical and artificial life approaches to consciousness.
Use of polypropylene mesh in superior posterior thoracoplasty
Authors: Belov S. A. , Grigoryuk A. A.
Published: March 2019

Theobjectivewas to evaluate the possibilities of using the polypropylene mesh “Surgipro” to increase the compression and reduce the operational injury in extrapleural superior posterior thoracoplasty.

Material and methods.64 cases of surgical treatment of fibrous-cavernous tuberculosis were studied. The volume of compression of the lung tissue and the effectiveness of the intervention were compared.

Results.Clinical and radiologic examination of patients in three weeks after the operation indicates that occurrence of exacerbation, preservation of bacterial excretion and lack of compression are much lower in the group using polypropylene mesh. The use of polypropylene mesh “Surgipro” increases the degree of compression in the field of intervention and the effectiveness of thoracoplasty.

Conclusion.The use of a mesh implant in thoracoplasty is reasonable and effective.
Determination of source parameters of simple-shaped geologic subsurface structures from self-potential anomalies using enhanced local wavenumber method
Authors: Pham Thanh Luan
Published: March 2019

Simple geometry model structures can be useful in quantitative evaluation of self-potential data. In this paper, we solve local wavenumber equation to estimate the horizontal position,  the depth and the type of the causative source geometry by using a linear least-squares approximation. The advantages of the algorithm in determining the horizontal position and depth measure are its independency to shape factor of the sources and also its simple computations. The algorithm is built in Matlab environment. The validity of the algorithm is illustrated on variable noise-free and random noise included synthetic data from two-dimensional (2-D) models where the achieved parametric quantities coincide well with the actual ones. The algorithm is also utilized to real self-potential data from Ergani Copper district, Turkey. The results from the actual data application are in good agreement with the published literature for the study area. The source code of the algorithm is available from the authors on request.
LEVANTAMENTO DAS DOENÇAS REGISTRADAS EM CÃES NO MUNICÍPIO DE POÇÕES-BA
Authors: Rodrigues Andresa De Jesus , Marisco Gabriele
Published: March 2019

Diversas patologias podem atingir os cães e afetar tanto a rotina do animal quanto a do seu dono. Fatores como raça, sexo e estação do ano podem intensificar o aparecimento de certas doenças. Este artigo teve como objetivo identificar a ocorrência das doenças registradas em cães atendidos em uma clínica veterinária no município de Poções – BA e verificar se fatores como raça, sexo e estação climática interferem no aparecimento de determinadas enfermidades. Para isso foram analisadas fichas de atendimentos durante os meses de outubro de 2016 a setembro de 2017. Dentre as doenças registradas as infecciosas, gastrointestinais e dermatológicas foram as mais frequentes. Com prevalência alta para erliquiose, verminose, cinomose, intoxicação alimentar, dermatite infecciosa e tumor venéreo transmissível (TVT). Foi verificado que os cães sem raça definida foram mais acometidos por erliquiose, enquanto os com raça definida por intoxicação alimentar seguida de erliquiose. Não existe predisposição sexual para as doenças: erliquiose, cinomose, intoxicação alimentar, TVT e verminose. Enquanto que a estação climática influenciou no aparecimento de doenças como doenças dermatológicas, erliquiose e TVT. Sugere-se realização de ações conscientizadoras para a população sobre medidas preventivas, principalmente para erliquiose e intoxicação alimentar a fim de diminuir o número de casos.
Specific Ion Effects on Hydrogen-Bond Rearrangements in the Halide–Dihydrate Complexes
Authors: Bajaj Pushp , Zhuang Debbie , Lab Paesani
Published: March 2019

Small aqueous ionic clusters represent ideal systems to investigate the microscopic hydrogen-bonding structure and dynamics in ion hydration shells. In this context, halide-dihydrate complexes are the smallest systems where the interplay between halide–water and water–water interactions can be studied simultaneously. Here, quantum molecular dynamics simulations unravel specific ion effects on the temperature-dependent structural transition in X-(H2O)2 complexes (X = Cl, Br and I) which is induced by the breaking of the water–water hydrogen bond. A systematic analysis of the hydrogen-bonding rearrangements at low temperature provides fundamental insights into the competition between halide–water and water–water interactions depending on the properties of the halide ion. While the halide–water hydrogen-bond strength decreases going from Cl-(H2O)2 to I-(H2O)2, the opposite trend in observed in the strength of the water–water hydrogen-bond, suggesting that non-trivial many-body effects may also be at play in the hydration shells of halide ions in solution, especially in frustrated systems (e.g., interfaces) where the water molecules can have dangling OH bonds.
Regional and global impacts of the 2007 Port-of-Spain Declaration on noncommunicable diseases
Authors: Kirton John , Knight W. Andy , Hospedales C. James , Hippolyte Dinah , Kulik Julia
Published: March 2019

Objective.To assess how well Caribbean regional institutions (RIs) met their commitments from the 2007 Port-of-Spain Summit (POSS) declaration on noncommunicable diseases (NCDs), and evaluate the POSS impact on the United Nations High-level Meeting (HLM) on NCDs in 2011 (2011 HLM), HLM NCD review in 2014 (2014 HLM), World Health Organization’s 2025 NCD targets (2025 WHO), and 2030 Sustainable Development Goals (SDGs) agreed upon in 2015.

Methods.This study uses a method developed by the University of Toronto’s Global Governance Program to measure institutions’ compliance with commitments from a summit and the match with commitments from earlier summits. This approach was supplemented using data from published literature, primary documents, and semistructured key informant interviews to detail how and why Caribbean RIs met the 2007 POSS commitments, how the 2007 POSS commitments led to compliance, and how the 2007 POSS influenced international NCD commitments.

Results.Caribbean RIs implemented the 2007 POSS commitments better when they had more public legitimacy, when their missions aligned with those commitments, and when more resources were available to them. Implementation constraints arose from multiple, sometimes competing, interests of the decision-making and national implementing bodies of the Caribbean Community (CARICOM). Internationally, the early, expanding efforts of the POSS pioneers had an initially important but subsequently diminishing impact on the HLMs.

Conclusions.For the Caribbean region, the Caribbean Public Health Agency should be funded to lead strengthened Caribbean RIs in coordinated action on NCDs. At the international level, the United Nations should embed NCDs in a “whole-of-global-governance” approach, monitor implementation annually, foster transregional partnerships on NCD-related themes, engage civil society, and support regular regional and global summits to enhance implementation and improvement, aimed at future HLMs on NCDs, the 2025 WHO targets, and the SDG NCD targets.
Health related quality of life following injury in low-and middle-income countries
Authors: Wainiqolo Iris , Kool Bridget , Nosa Vili , Ameratunga Shanthi
Published: March 2019

Introduction:  Health-related quality of life (HRQoL) is an important aspect to consider when assessing the non-fatal impact of injuries.  The aim of this review was to critically appraise the range of generic instruments employed in the assessment of HRQoL following injury in low-and middle-income countries (LMICs). As a prelude to subsequent research examining longer-term outcomes following motor vehicle crash injuries in Fiji, we also examined how commonly used measures align with the List of All Deficits (LOAD) framework for injury and the Fonofale model of Pacific health and well-being. 

Methods:  A systematic search of four databases was conducted to identify injury outcome studies undertaken in low-and middle-income countries (LMICs) that used a generic health status outcome measure(s).  Two separate content analyses were undertaken, to assess how identified HRQoL measures aligned with the LOAD framework and the Fonofale model.

Findings:  Thirty two studies from thirteen LMICs examined variably defined aspects of HRQoL following a range of traumatic injuries (e.g. spinal cord, brain). The measures most commonly focused on the ‘impact on individual’ aspect of the LOAD framework and the ‘physical and mental’ aspects of the Fonofale model.  While the emerging literature from LMICs provides valuable information about the HRQoL of trauma patients, the commonly used generic measures provided limited insights regarding societal impacts, culture and spirituality, domains of relevance to injury research and Pacific health and well-being. 

Conclusion: Theoretical frameworks relevant to Pacific contexts should be considered when selecting appropriate outcome measures for injury studies in the region.
Traditional Medicine and Western Medicine, Coexisting Systems and Practices. A Perspective on the way forward
Authors: Brebner Frances , Sopoaga Faafetai
Published: March 2019

This article looks at Western Medicine and Traditional Medicine and explores the implications of these coexisting but very diverse systems of healthcare. We have sourced information from the World Health Organisations, Strategy and Guidelines in Traditional Medicine Use and, Guidelines for assessing quality of herbal medicines with reference to contaminates and residues and a Study on Traditional Medicine use in Dunedin by final year Otago University Medical students. We offer a perspective on the roles of academic institutions and Traditional Medicine/Traditional Healers in the provision of universal healthcare coverage in the Pacific.
Rectangular Dielectric Resonator Antenna with Single Band Rejection Characteristics
Authors: Debab Mohamed , Mahdjoub Zoubir
Published: March 2019

In this paper, a rectangular dielectric resonator antenna (DRA) suitable for wideband applications is presented and a band notch of WLAN (5.15–5.75) GHz is proposed. The DRA is mainly composed of a 20 × 20 mm rectangular dielectric resonator, coated with metal on the top surface, and a circular monopole excitation patch with an air gap insert. A coaxial line feed is used to excite the circular, planar monopole. An open-ended quarter wavelength C-shaped slot is embedded in the circular patch to create the notched band. The simulated results demonstrate that the proposed design produces an impedance bandwidth of more than 80%, ranging from 3.10 to 7.25 GHz for a reﬂection coeﬃcient of less than −10 dB and with a band rejection at 5.50 GHz. Band notch characteristics, VSWR, and radiation patterns are studied using the HFSS high-frequency simulator and CST Studio software.
CAP GO MEH SEBAGAI MEDIA PENDIDIKAN RESOLUSI KONFLIK DI TENGAH KERAGAMAN ETNIS KOTA SINGKAWANG
Authors: Suprapto Wasis
Published: March 2019

Artikel ini sendiri bertujuan untuk mengkaji tiga hal yaitu (1) Bagaimanakah rekam jejak Etnis Tionghoa di Indonesia, (2)
Bagaimanakah pelaksaan tradisi Cap Go Meh di Singkawang? (3) Bagaimanakah peran dari tradisi Cap Go Meh untuk menanamkan
pendidikan resolusi konflik pada masyarakat?. Artikel ini dikaji dengan pendekatan kualitatif deskriptif. Hasil penelitian menunjukkan
bahwa (1)Kehidupan sosial masyarakat tionghoa di Indonesia telah mengalami pasang surut dari mulai dibatasi sejak keluarnya Inpres
No 14 tahun 1967 yang melarang penyelenggaraan ibadah agama atau kepercayaan serta adat istiadat orang Tionghoa. Namun, pada
era Presiden Abdurahman Wahid Inpres ini dihapus dan diganti dengan Keppres No 6 Tahun 2000 untuk memutihkan hak mereka.
Era Presiden Susilo Bambang Yudhoyono (SBY) bahkan dikeluarkan Undang-Undang No 40 Tahun 2008 yang melarang adanya
deskriminasi ras dan etnis. (2) Pelaksaan Tradisi Cap Go Meh di Singkawang dilakukan dilakukan melalui tiga acara besar yaitu
kegiatan Ritual Bersih Jalan di hari ke-14, Pawai Lampion di mala hari ke-15, dan Parade Tatung di hari ke-15. Kegiatan ini diikuti
oleh hampir semua etnis di Kota Singkawang baik sebagai pelaku parade maupun penonton acara. (3) Pelaksaan tradisi Cap Go Meh
ternyata dapat dijadikan sebagai media pendidikan resolusi konflik di masyarakat. Model pendidikan resolusi konflik tersebut dapat
dikaji dari tiga pendekatan baik peace keeping, peace building, dan peace making. Peace keeping terlihat dari keberadaan oknum TNI,
Polisi, dan tokoh lintas etnis maupun agama. Peace building terlihat dari adanya keikutsertaan dari Etnis Dayak dalam kegiatan Cap
Go Meh meskipun kedua etnis pernah terlibat konflik tahun 1967. Peace making terlihat dari berakhirnya kegiatan Cap Go Meh
sebelum Adzan Dzuhur berkumandang. Hal ini dilakukan sebagai upaya menjaga keharmonisan antar etnis di Singkawang
Nuestros pacientes, lo más importante.
Authors: Del Valle Hernández Emilio
Published: March 2019

En anteriores editoriales, se ha abordado desde diferentes puntos de vista, la formación y como llegar a ser un buen cirujano colorrectal. En esta ocasión, quiero incidir en el mismo asunto desde otro punto de vista, esto es, la importancia de tener al paciente como centro de nuestra actividad y la obligación  de caminar en nuestro aprendizaje y toma de decisiones, teniendo siempre en cuenta que lo principal es conseguir los mejores resultados desde la seguridad.

Nuestra especialidad está  en constante crecimiento, fruto del desarrollo tecnológico y de la capacidad e innovación de los profesionales.  Se presentan nuevas formas de abordaje quirúrgico, en ocasiones muy atractivas, que pretenden aportar soluciones a problemas complejos, siendo en ocasiones técnicamente muy demandantes y que requieren de un aprendizaje y entrenamiento previo, y sin embargo, en ocasiones las ponemos en práctica sin cumplir los requisitos imprescindibles.
ANTIBACTERIAL ACTIVITY OF CLOVE ESSENTIAL OIL AND EUGENOL AGAINST FISH PATHOGENIC BACTERIA ISOLATED FROM CULTURED OLIVE FLOUNDER (Paralichthys olivaceus)
Authors: Pathirana H. N. K. S. , Wimalasena S. H. M. P. , De Silva B. C. J. , Hossain S. , Gang-Joon Heo
Published: March 2019

The antibacterial activity of clove (Syzygium aromaticum) essential oil (CEO) and eugenol was tested against seven Gram-negative and nine Gram-positive fish pathogenic bacteria isolated from cultured olive flounder (Paralichthys olivaceus) in Korea. Eugenol was >99% concentrated and CEO consisted of seven chemical compounds including 83.63% of eugenol. Disk diffusion assay, MIC (minimum inhibitory concentration) and MBC (minimum bactericidal concentration) tests showed CEO and eugenol inhibited the growth of both Gram-negative and Gram-positive bacteria. CEO (MBC/MIC= 1-2) and eugenol (MBC/MIC= 1-4) were bactericidal for all tested strains. The percentage of relative inhibition zone diameter exhibited high values at higher concentration of both CEO and eugenol. Positive correlation was observed between MAR index values and MIC values of CEO (r =0.61) and eugenol (r =0.15). Since antibacterial activity of CEO and eugenol were effective against fish pathogenic bacteria, the use of CEO and eugenol could be advantageous to treat bacterial infections in aquaculture.Key words: antibacterial activity; clove essential oil (CEO); eugenol; fish pathogenic bacteria; olive flounderPROTIBAKTERIJSKA AKTIVNOST ETERIČNEGA OLJA NAGELJNOVIH ŽBIC IN EVGENOLA PROTI PATOGENIM BAKTERIJAM RIB, IZOLIRANIH IZ GOJENEGA MORSKEGA LISTA (Paralichthys olivaceus) Protibakterijsko delovanje eteričnega olja nageljnovih žbic (Syzygium aromaticum) (CEO) in evgenola je bilo testirano pri sedmih vrstah po Gramu negativnih in devetih vrstah po Gramu pozitivnih patogenih bakterij, ki so bile izolirane iz gojenega morskega lista (Paralichthys olivaceus) v Južni Koreji. Evgenol je bil 99-odstotno koncentriran, CEO pa je sestavljalo sedem kemičnih spojin, med njimi je bilo največ evgenola, ki je predstavljal 83,odstotka eteričnega olja. Metoda difuzije v trdem gojišču, minimalna zaviralna koncentracija (MIC) in minimalna baktericidna koncentracija (MBC) so pokazale, da sta CEO in evgenol zavirala rast tako po Gramu negativnih kot po Gramu pozitivnih bakterij. CEO (MBC/MIC = 1-2) in evgenol (MBC/MIC = 1-4) sta bila baktericidna za vse testirane seve. Odstotek velikosti relativne zaviralne cone je bil visok pri višji koncentraciji CEO in evgenola. Pozitivna soodvisnost je bila opažena med vrednostmi indeksa MAR in vrednostmi MIC pri CEO (r = 0,61) in evgenolu (r = 0,15). Ker sta CEO in evgenol pokazala učinkovito delovanje proti patogenim bakterijam rib, bi bila uporaba CEO in evgenola lahko uporabna za zdravljenje bakterijskih okužb v ribogojništvu.Ključne besede: antibakterijsko delovanje; eterično olje klinčkov (CEO); evgenol; patogene bakterije rib; morski list
Pro-ecological activities in a supply chain and performance achieved through their implementation
Authors: Maryniak Anna
Published: March 2019

Nowadays in the world of science and business, the topic concerning the need to implement pro-ecological approach related to the movement of products in the supply chain and its impact on marketing, financial and logistic aspect is being increasingly addressed. However, there are few empirical studies that relate to Polish conditions or that present the issue in comprehensive manner. Therefore this study focuses both on strategic and operational management in the supply chain, and on the relations between consignor and consignee as well as on the subject of supply chain flow. The study aims to assess the impact of pro-ecological activities carried out in the supply chain for tested link as well as supply chain, and to assess the intensity of these activities.
The competitive position of the low cost carrier Wizz Air on the Polish market of air transport services
Authors: Tłoczyński Dariusz
Published: March 2019

In the air transport market, competitive processes are seen more and more in terms of intra-industry, hence air carriers strive to achieve a high competitive position. Thus, the main goal of the research undertaken in the article is to assess the competitive position of the Hungarian air carrier Wizz Air. On the basis of the presented objective, the factors influencing the achievement of competitive position by enterprises were analyzed. The article uses available secondary sources in relation to the Polish air transport market. When analyzing the functioning of Wizz Air, the airports in which the aircarrier conducts operational activities were selected. The comparative analysis was carried out on selected routes where competition between Wizz Air and other carriers takes place.
Rational distribution of the high-speed railway capacity between trains of various categories
Authors: Myronenko Viktor , Matsiuk Viacheslav
Published: March 2019

The article presents a methodology for the distribution of available capacity of high-speed railways, in the conditions of equal access to the railway infrastructure of different participants of the transport market. This will allow maximizing the efficiency of using available capacity of high-speed railways, while simultaneously organizing freight and passenger transportation.
The Polish electric bus market against a background of the world market
Authors: Jagiełło Aleksander
Published: March 2019

In the majority of the developed and in some of the developing countries we can observe gradual shift from the conventional public urban transport vehicles driven by diesel fuel towards electric vehicles. The process requires changes in the demand and supply side of urban transport market in particular countries around the world. The aim of this paper is to assess the standing of electric bus market in Poland against a background of the European and world market. The assessment involved presenting, in the first part of the article, characteristics of the worldwide and European markets from the demand and supply side. As for the world market of electric buses, the article discusses at great length the characteristics of Chinese market since this is the dominant market as regards both the number of vehicle in operation and the number of manufactured electric buses. The second part of the article provides the characteristics of demand and supply side of electric bus market in Poland presenting both domestic and European electric bus manufacturers who situated their production plants in Poland. The article also presents forecasts related to the scale of demand increase reported by the Polish local authorities.
Directions of tariff and ticket integration of public transport in the metropolitan area Gdańsk-Gdynia-Sopot the Pomeranian Voivodeship
Authors: Grzelec Krzysztof , Kołodziejski Hubert , Wyszomirski Olgierd
Published: March 2019

In the process of urban and regional public transport integration in the urbanized areas, the tariff and ticket integration is of fundamental importance, despite the fact that the price is not perceived as the basic transport postulate deciding on the choice of the way of moving. Public authorities of cities located in the metropolis Gdańsk-Gdynia-Sopot and the Pomeranian voivodeship have been undertaking attempts to integrate this transport for almost 30 years, so far without the desired results. This article presents general assumptions of tariff and ticket integration of urban and regional public transport, previous processes of integration of this transport in the Tri-City metropolis and the Pomeranian voivodship, as well as necessary directions of its tariff and ticket integration in this area in order to provide attractive transport offer.
Evaluación físico química de fruta de pitahaya (Selenicereus megalanthus) en diferentes estados de desarrollo
Authors: Sotomayor Correa Andrea , Pitizaca Soledad , Sánchez Maritza , Burbano Armando , Díaz Alejandra , Nicolalde José , Viera William , Caicedo Carlos , Vargas Yadira
Published: March 2019

En esta investigación se evaluaron los cambios físicos y químicos que ocurren durante el crecimiento y maduración de la fruta llamada pitahaya. Utilizando la tabla de color de pitahaya amarilla (NTC-3554), se colectaron frutos en los seis estados de madurez (0 verde oscuro a 6 completamente amarillo) para evaluar el peso del fruto; mientras que para las variables porcentaje de pulpa y cáscara, firmeza de la pulpa (N), sólidos solubles (ºBrix), pH, acidez (%) y la evaluación sensorial de sabor y apariencia, se tomaron frutos solamente en dos estados (0 y 6). El porcentaje de cáscara disminuyó de 55.93 a 33.40 %; mientras que el de pulpa aumentó de 44.07 a 66.60 % entre el estado 0 y 6, respectivamente. El fruto al llegar al estado 6 presentó menor firmeza de pulpa (6.20 N), acidez titulable (0.14 %), y mayor contenido de sólidos solubles (20.74 ºBrix) y pH (4.86). Por otro lado, la prueba sensorial en los estados 0 y 6 fueron aceptados por el consumidor debido al alto contenido de grados Brix presentados en ambos estados.
Ubicación óptima de PMU considerando restricciones de contingencias N-1 en sistemas eléctricos de potencia
Authors: Carrión Galarza Diego Francisco , González Sánchez Jorge Wilson
Published: March 2019

La evaluación de los parámetros eléctricos mediante unidades de medición fasorial en los sistemas de potencia es fundamental, ya que con los datos obtenidos se realiza la estimación del estado de la operación de los mismos. En la presente investigación se plantea el problema para el despliegue óptimo de unidades de medición fasorial respetando restricciones de observabilidad, redundancia y contingencias N-1. La minimización de unidades considera la salida de una línea de transmisión o la falla de una unidad de medición fasorial y garantiza el 100 % de observabilidad de sistema de potencia; para la optimización se utilizó programación lineal entera mixta. El algoritmo propuesto fue probado con los modelos de prueba del IEEE de 9, 14, 30 y 118 nodos.
Prototipo de robot paralelo accionado por cuatro cables: resultados experimentales
Authors: Aguas Xavier , Herrera Marco Antonio , Sotomayor Nelson , Camacho Oscar
Published: March 2019

Los robots accionados por cables son una clase especial de robots paralelos formados al reemplazar los enlaces rígidos por cables. Debido a las características que otorgan los cables, como baja inercia y mayor rango de movimiento, pueden realizar una amplia gama de aplicaciones como: la traslación de cámaras de un lugar a otro en eventos deportivos, industria del automovilismo y, principalmente, en la rehabilitación de extremidades. Sin embargo, por la propiedad unilateral de los cables, el mantenerlos tensionados se convierte en un gran desafío. En este artículo se presenta la construcción de un robot paralelo accionado por cuatro cables con el objetivo de trazar tres figuras a través del estudio del modelo cinemático y dinámico que considera la redundancia de actuación, es decir, más cables que grados de libertad, para evitar que requieran mayor tensión durante el movimiento del efector final.
Sliding Mode Control Based on Internal Model for a Non-minimum phase Buck and Boost Converter
Authors: Cajamarca Byron , Camacho Quintero Óscar , Chávez Danilo , Leica Paulo , Pozo Marcelo
Published: March 2019

This work presents the application of different schemes to control a non-minimum phase Buck-Boost converter. Three control schemes are used. The first controller presented is a PI controller, the second one is Sliding Mode Control and the third one is a combination of two control schemes, Internal Model Control and Sliding Mode Control. The controllers are designed from a Right-Half Plane Zero (RHPZ) reduced order model. The RHPZ model is converted, using Taylor approximation, in a First Order Plus Dead Time (FOPDT) model and after that, the controllers are obtained. The performance of the SMC-IMC is compared against to a PI controller and a SMC. The simulation results show that SMC-IMC improves the converter response, reducing the chattering and presenting better robustness for load changes
Mechanical and electromagnetic pro perties of shields on the base of needle-punched material with conductive and dielectric coatings
Authors: Abdulhadi H. D. A. , Belousova A. S. , Prudnik A. M. , Lynkou L. M.
Published: March 2019

The results of the development of electromagnetic radiation shields with flexibility and minor weight and size parameters are presented. Needle-punched material was chosen as the basis for the shields of electromagnetic radiation, which was coated with conductive or dielectric coatings. It has been proved that when applied to a needle-punched material of thin (up to 5 mm) conductive or dielectric coatings, the ultimate strength increases to 5–10 kgf/mm2 and the surface resistance decreases to 0.05 MOhm/sq, while the weight and size parameters of the shields do not change significantly. It was shown that the frequency dependencies of the reflection and transmission coefficients correlate for coatings of various types. A sample of an electromagnetic radiation shields based on a needle-punched coated material consisting of powdered shungite has a reflection coefficient measured in the short circuit mode is about –22.8 dB in the 2–4 GHz frequency range, which allows to use this material to ensure electromagnetic compatibility, information security and personnel protection from electromagnetic radiation.
Heat transfer in the vortex zone of a cyclone-bed chamber of furnace unit with fluidized bed
Authors: Pitsuha E. A. , Buchilko E. K. , Teplitskii Yu. S. , Slizhuk D. S.
Published: March 2019

An experimental investigation of the heat-transfer coefficient to a spherical probe in a cyclone-bed chamber with fluidized bed in the “cold” and “hot” regimes has been carried out. The heat-transfer coefficient was determined by the regular thermal regime. The dependences of the heat-transfer coefficient in the vortex-bed furnace on the various parameters: the diameter of the outlet hole, the air flow rate, the share of the bottom blast and the location of the probe were determined. It is revealed that in the “cold” regime the heat-transfer coefficient has practically constant value in the radial direction, it almost does not depend on the diameter of the outlet hole and the share of the bottom blast and depends significantly on the position of the probe along the height of the furnace and the air flow rate. The effect of flow swirling on the heat-transfer coefficient in a cyclone-bed chamber with fluidized bed is determined. When the fuel burns (“hot” regime), the heat-transfer coefficient is not constant in the radial direction and accept the maximum values in the central area of the chamber. At the same time, the part of conductive-convective component in the total heat-transfer coefficient to the spherical probe, depending on its radial position, is estimated at 40–70 %. The results can be used in the design and creation of modern high-efficiency furnaces for burning local solid biofuels.