bluuebunny/crossref_metadata_2025 huggingface dataset:
Lanthanoid Complexes Supported by Retro-Claisen Condensation Products of β-Triketonates
Authors: Galán Laura Abad , Sobolev Alexandre N. , Zysman-Colman Eli , Ogden Mark , Massi Massimiliano
Published: June 2018

β-Triketonates have been recently used as chelating ligands for lanthanoid ions presenting unique structures varying from assemblies to polymers. Despite their novel complexation behaviour little is known about the stability of these molecules. Indeed, two examples of possible in situretro-Claisen condensation reactions have been reported previously. To better understand this possible decomposition pathway, four new β-triketones were synthesised. Complexation reactions were performed for each of these molecules using different alkaline bases in alcoholic media, aiming to isolate the potentially varying ligands present in solution. The X-ray diffraction studies revealed the formation of structures where one, two, or three of the molecules involved in the retro-Claisen condensation reaction were linked to the lanthanoid centres.
An Optimized Propagation Model based on Measurement Data for Indoor Environments
Authors: Morocho-Yaguana Marco , Ludeña-González Patricia , Sandoval Francisco , Poma-Vélez Betty , Erreyes-Dota Alexandra
Published: June 2018

Propagation is an essential factor ensuring good coverage of wireless communications systems. Propagation models are used to predict losses in the path between transmitter and receiver nodes. They are usually deﬁned for general conditions. Therefore, their results are not always adapted to the behavior of real signals in a speciﬁc environment. The main goal of this work is to propose a new model adjusting the loss coeﬃcients based on empirical data, which can be applied in an indoor university campus environment. The Oneslope, Log-distance and ITU models are described to provide a mathematical base. An extensive measurement campaign is performed based on a strict methodology considering diﬀerent cases in typical indoor scenarios. New loss parameter values are deﬁned to adjust the mathematical model to the behavior of real signals in the campus environment. The experimental results show that the model proposed oﬀers an attenuation average error of 2.5% with respect to the losses measured. In addition, comparison of the proposed model with existing solutions shows that it decreases the average error signiﬁcantly for all scenarios under evaluation.
Comparative Analysis of QoS Management and Technical Requirements in 3GPP Standards for Cellular IoT Technologies
Authors: Tikhvinskiy Valery , Bochechka Grigory , Gryazev Andrey , Aitmagambetov Altay
Published: June 2018

Optimization of 3GPP standards that apply to cellular technologies and their adaptation to LPWAN has not led to positive results only enabling to compete on the market with the growing number non-cellular greenﬁeld LPWAN technologies – LoRa, Sigfox and others. The need to take into consideration, during the 3GPP standard optimization phase, the low-cost segment of narrow-band IoT devices relying on such new technologies as LTE-M, NB-IoT and EC-GSM, has also led to a loss of a number of technical characteristics and functions that oﬀered low latency and guaranteed the quality of service. The aim of this article is therefore to review some of the most technical limitations and restrictions of the new 3GPP IoT technologies, as well as to indicate the direction for development of future standards applicable to cellular IoT technologies.
Alarm Correlation in Mobile Telecommunications Networks based on k-means Cluster Analysis Method
Authors: Mazdziarz Artur
Published: June 2018

Event correlation and root cause analysis play a fundamental role in the process of troubleshooting all technical faults and malfunctions. An in-depth, complicated multiprotocol analysis can be greatly supported or even replaced by a troubleshooting methodology based on data analysis approaches. The mobile telecommunications domain has been experiencing rapid development recently. Introduction of new technologies and services, as well as multivendor environment distributed across the same geographical area create a lot of challenges in network operation routines. Maintenance tasks have been recently becoming more and more complicated, time consuming and require big data analyses to be performed. Most network maintenance activities are completed manually by experts using raw network management information available in the network management system via multiple applications and direct database queries. With these circumstances considered, identiﬁcation of network failures is a very diﬃcult, if not an impossible task. This explains why eﬀective yet simple tools and methods providing network operators with carefully selected, essential information are needed. Hence, in this paper eﬃcient approximated alarm correlation algorithm based on the k-means cluster analysis method is proposed.
Measurements and Statistical Analysis for Assessment of Availability of Mobile Network Services
Authors: Kadamus Grażyna , Langer Małgorzata
Published: June 2018

Availability is an essential feature of telecommunication services. It inﬂuences the quality of experience (QoE) associated with individual networks and with the services offered. Therefore, it needs to be allowed for at each level of network design, and has to be controlled at the operation stage. This is achieved by means of various mathematical and numerical tools. In this project listening quality and speech level, which are quality-related features of mobile network services, are measured and analyzed with the Monte Carlo simulation method. Measurements are taken with assistance of the Diversity Benchmarker, a reliable device designed for mobile network testing. Finally, results obtained are compared to assess the applicability of the Monte Carlo method.
PROCESSO DE ENFERMAGEM APLICADO AO PACIENTE COM INFECÇÃO DE SÍTIO CIRÚRGICO PÓS-PROSTATECTOMIA: RELATO DE EXPERIÊNCIA
Authors: Porto Alana Oliveira , Leal Carla Bianca De Matos , Ferreira Ricardo Bruno Santos
Published: June 2018

Objetivo: Relatar a experiência de graduandas em enfermagem quanto à elaboração da sistematização de assistência de enfermagem ao paciente com diagnóstico de Infecção de sítio cirúrgico. Metodologia: Trata-se de um relato de experiência, que exibe os principais diagnósticos de enfermagem, bem como fatores de risco e medidas preventivas para a Infecção de Sítio Cirúrgico (ISC). Resultados: Os planos de cuidado elaborados pela equipe de enfermagem no perioperatório garantem ao paciente menor probabilidade de complicações, bem como maior autonomia para o profissional. Conclusão: Observa-se a importância do processo de enfermagem nos cuidados ao paciente cirúrgico e a necessidade da equipe aderir totalmente às medidas preventivas de ISC, a fim de melhorar a assistência à saúde e consequentemente garantir a segurança do paciente.
Parametric Effect on Surface Finish of Three-Dimensional Printed Object
Authors: Hasan Muhammad Hasibul , Ahmed Shugata , Voldman Ron , Mehany Mirt
Published: June 2018

The ability to use different parameters and finishing techniques in fused deposition modelling (FDM) depends largely on part geometries, materials, printing processes like Z-resolution and post processing to some extent. Low quality poor surface finish due to layer ovality, improper Z-resolution parameter selection and fill of the empty shell in three-dimensional (3D) printing, results unexpected texture and appearance. An investigation is carried out on the effects of Z-resolution (0.15 mm to 0.40 mm) and Fill parameters on flat and curved surface objects manufactured using the FDM process. Moreover, post surface treatment was performed using acetone. It was found that average surface roughness increases with increasing Z-resolution. Solid Fill can create a smoother surface as oppose to Sparse Fill. Surface roughness improves significantly after post treatment with organic solvent acetone.
administración directa de las rentas generales
Authors: Calvo Cruz Mercedes
Published: June 2018

: Las rentas de aduanas constituyeron en el siglo XVIII una de las principales fuentes derecaudación para el gobierno borbónico, circunstancia que originó numerosas reformas económicas yfiscales, que se concretaron con la implantación de la administración directa de estas rentas a partir de 1740.El objetivo de este trabajo es analizar el cambio que tuvo lugar en la administración de la Hacienda Realcomo consecuencia de la implantación de la administración directa frente al sistema de arrendamientos paralas rentas de aduanas y cómo influyó en la contabilidad pública. Para ello, analizaremos las normas decarácter contable que se emitieron y debían aplicarse. Este análisis permitirá mostrar las influencias delentorno en la contabilidad y las influencias de la contabilidad en el entorno y en el control de las rentas deaduanas
Evaluación de seguridad de la información en las páginas web pertenecientes a los municipios de la provincia del Cañar
Authors: Flores Urgilés Cristhian , Zhinin Aguayza Beatriz , Segovia Cantos Alexandra , Mayancela Zhinin Mercedes , Marlene García Jessica
Published: June 2018

La presente investigación se desarrolló con el fin de buscar el aseguramiento de la información de las páginas web pertenecientes a las municipalidades de la provincia del Cañar mediante un análisis de vulnerabilidades, buscando prevenir las amenazas que se puedan presentar y estas a la vez pongan en peligro la estabilidad de dichas páginas. Se realizó una investigación teórica sobre aseguramiento de aplicativos webs, estándares y buenas prácticas de seguridad de la información y las diferentes herramientas de escáner de vulnerabilidades de páginas web, para finalmente luego del análisis respectivo utilizar la herramienta Acunetix 11, además tomando como referencia el Top Ten de Owasp 2017. Como resultado se obtuvo un informe detallado de las vulnerabilidades encontradas durante el proceso de escaneo de las diferentes páginas municipales; para finalizar con las respectivas recomendaciones de seguridad para las amenazas más comunes.
Detección de filtraciones de privacidad: una visión del estado del arte
Authors: Romero Córdova Diana
Published: June 2018

Cuando se habla de redes sociales, se expresan todas las ventajas que estas brindan al usuario en cuanto a la comunicación e interacción con el mundo, además se reconoce que son una fuente de extracción y uso de datos con diversos fines,  aunque algunos con objetivos ilícitos. Las redes sociales se han popularizado y las personas les dedican diariamente tiempo para revisar las principales notificaciones recibidas, así como comunicarse, publicar, realizar comentarios o colocar etiquetas. La necesidad de controlar la privacidad es fundamental, pero no son suficientes las configuraciones que se puedan realizar para evitarlo. El usuario coloca en sus publicaciones mensajes que contienen elementos propios del lenguaje natural, pero que resultan difíciles de interpretar por un software. Para realizar una búsqueda de elementos considerados privados que se encuentren en los textos publicados o que puedan inferirse por la revisión total de la información visible publicada en el perfil del usuario, es necesario procesar el texto para limpiarlo, normalizarlo y clasificarlo. La información privada puede ser fácilmente inferida, con solo asociar las diferentes publicaciones textuales que se compartieron por el usuario u otra persona. Resulta oportuno hacer uso de las técnicas de la minería de texto para evitar la publicación de información privada en el perfil que se comparte con el grupo de amigos de la red social.
Common Assessment Framework – Improving Organizational Performance of Municipalities in Bosnia and Herzegovina
Authors: Bajramovic Daut , Gram Manfred
Published: June 2018

Common Assessment Framework (CAF), a European Total Quality Management (TQM) methodology, has been applied by municipalities across Bosnia and Herzegovina for a number of years. Municipalities have used CAF as a self-assessment tool to identify and meet their own development needs and improve organizational performance. Along with International Organization for Standardization (ISO) and Business Friendly Certificate (BFC) standards, CAF has been promoted by domestic non-governmental and international organizations as a TQM tool for public sector. This article provides an insight into experience of municipalities in BiH with implementation of CAF by focusing on their thematic priorities, organizational efficiency, output, outcome and citizens’ satisfaction.
Solving the Problems of Rural as Environmentally Desirable Segment of Sustainable Development
Authors: Batrićević Ana Slobodan , Joldžić Vladan Uroš , Stanković Vera Đura , Paunović Nikola Vladan
Published: June 2018

The paper highlights key problems of rural development in the context of economic and environmental crisis, with focus on rural areas in Serbia. It emphasizes the link between sustainable rural development and environmental protection, particularly in the fields of organic agriculture, small organic farming and agro-eco tourism. It analyses legislative and strategic documents regulating this issue on universal, European and national level, making suggestions to improve their application. Obstacles for sustainable rural development include: uncultivated agricultural lands, soil pollution, insufficient irrigation or draining, agricultural lands fragmentation, poor infrastructure, inadequate tax policy, uncompleted restitutions, long probate proceedings and financially uncertain position of land-owners. Some of them have environmental impacts and can be resolved by suitable policy and legislation, strategic planning, environmental education and financial stimuli for green agriculture. The paper suggests legislators and policy makers in the areas of: sustainable development, taxes, agriculture, green economy and environment protection to analyse more profoundly key problems of rural development and their linkage to nature conservation. When it comes to practice, it suggests which legal documents should be applied in order to achieve successful, sustainable and environmentally acceptable development of rural areas. The paper contributes to a better understanding of the relationship between sustainable rural development and environment protection, emphasizing the possibility to preserve nature and increase incomes of rural communities through green agriculture, small farm production and eco-tourism. It also states that current legislative framework provides preconditions for resolving the issues that might appear within, suggesting key steps for its future implementation.
Data-Driven Approach Towards a Personalized Curriculum
Authors: Backenköhler Michael , Scherzinger Felix , Singla Adish , Wolf Verena
Published: June 2018

Course selection can be a daunting task, especially for newer students. Sub-optimal selection can lead to bad performance of students and increase the dropout rate. Given the availability of historic data about student performances, it is possible to aid students in the selection of appropriate courses. Here, we propose a method to compose a personalized curriculum for a given student. We develop a modular approach that combines a context-aware grade prediction with statistical information on the temporal ordering of courses. This allows for meaningful course recommendations, both for fresh and senior students. We demonstrate the approach using the data of the Computer Science Bachelor students at Saarland University.
Incremental Solving with Vampire
Authors: Reger Giles , Suda Martin
Published: June 2018

Both SMT and SAT solvers can be used incrementally. This can be useful in lots of applications. Indeed, internally, Vampire uses both Minisat and Z3 incrementally. In this paper, we explore how VAMPIRE could be used incrementally. There are two forms of incremental solving. The first is where a solver is provided with formulas from a problem one by one with consistency being checked at certain points. The second more general form is where stack operations are used to create different solving contexts. We explore both ideas and show how they can be achieved within VAMPIRE. We argue that the second approach may be more suited to VAMPIRE as it allows for the incremental solving of unsatisfiable problems (whereas the first assumes a series of satisfiable problems) and the use of different solving contexts allows VAMPIRE to make use of incomplete proof search strategies. For the first approach, it will be necessary to restrict preprocessing steps to ensure completeness when additional formulas are added. For the second approach, we can make use of clauses labelled with assertions and take advantage of AVATAR to keep track of the stack information.
Evaluación de biomasa de microalgas de la laguna Limoncocha como materia prima para la obtención de biocombustibles
Authors: Subía Soledad , Rubio Aguiar Rodolfo Jefferson
Published: June 2018

Se determinaron las mejores condiciones experimentales para la producción y evaluación de la biomasa de microalgas provenientes de Limoncocha con el objetivo de comprobar la factibilidad de uso en la obtención de biocombustibles. Se dio seguimiento a diferentes cultivos con el fin de obtener la cinética de crecimiento de las microalgas y establecer el rendimiento con el que se producen a escala de laboratorio controlando las diferentes variables que intervienen en dicho proceso. Una vez obtenida la biomasa en los fotobiorreactores se caracterizó para conocer su composición y contenido de lípidos. La productividad para el primer consorcio Vischeria/Scenedesmus sp fue de 0,088 g L-1 dia-1 alcanzando un total de 5030000 cel/mL y para el segundo consorcio Chlorella/Monoraphidium Contortum sp fue de 0,091 g L-1 dia-1 con un total de 5537636 cel/mL. Para la composición lipídica por el método Soxhlet usando una mezcla de cloroformo/metanol como solventes, se obtuvieron resultados de 16 % de lípidos totales para el consorcio de Vischeria/Scenedesmus sp y 42% para el consorcio de Chlorella/Monoraphidium Contortum sp.
Determinación de cadmio y plomo en agua, sedimento y organismos bioindicadores en el Estero Salado, Ecuador
Authors: Pernía Santos Beatriz Margarita , Mero Mariuxi , Cornejo Xavier , Ramírez-Prado Nelson , Ramírez Lissette , Bravo Kenya , López David , Muñoz Jorge , Zambrano Josué
Published: June 2018

Existen evidencias de contaminación por metales pesados en el Estero Salado, localizado en la ciudad de Guayaquil, provincia del Guayas, en la costa de Ecuador. Con la finalidad de identificar organismos bioindicadores de contaminación por metales pesados, se estudió la concentración de Cd y Pb en agua, sedimento, hojas de mangles como Rhizophora racemosa, Avicennia germinans, Conocarpus erectus y Laguncularia racemosa, y gasterópodos como Littorina varia y Cerithidea mazatlanica, que se encontraban a nivel del Puente Portete en el Estero Salado. Las muestras fueron analizadas por espectrofotometría de absorción atómica de flama. Los valores de Cd y Pb en agua y sedimento superaron a los límites permisibles establecidos en las normas ecuatoriana y canadiense. Los gasterópodos L. varia y C. mazatlanica demostraron ser los mejores bioindicadores de contaminación al acumular en sus tejidos blandos 2,45±0,49 mg kg-1 de Pb y 1,49±0,67 mg kg-1 de Cd, respectivamente. Los mangles no acumularon en sus hojas Cd y Pb por la baja biodisponibilidad en el sedimento
Public Data In Use: A Case Study of Ireland
Authors: Blackwell John
Published: June 2018

Public Data In Use: A Case Study of Ireland
Utilizing Mainframe Data on PC Platforms: Problems, Solutions, and Techniques
Authors: Wickenkamp Carol
Published: June 2018

Utilizing Mainframe Data on PC Platforms: Problems, Solutions, and Techniques
Building a Bibliographic/MARC Data Base for Social Science Data Files in a Network Environment
Authors: Dodd Sue A.
Published: June 2018

Building a Bibliographic/MARC Data Base for Social Science Data Files in a Network Environment
The Roper Center: Development of a New Organizational Model for Data Access
Authors: Gammell William
Published: June 2018

The Roper Center: Development of a New Organizational Model for Data Access
The Issue of Confidential Data: The Need for Formulation of Policy by the Data Archive and Library
Authors: Robbin Alice
Published: June 2018

The Issue of Confidential Data: The Need for Formulation of Policy by the Data Archive and Library
WWW: What do Researchers Want?
Authors: Henderson Jim
Published: June 2018

WWW: What do Researchers Want?
The New OED Project at Waterloo: Old Wine in New Bottles
Authors: Russell D. W.
Published: June 2018

The New OED Project at Waterloo: Old Wine in New Bottles
Accessing City-County Data Book via DBASE III: Census CD-ROMs from the Ground Up
Authors: Gey Fredric
Published: June 2018

Accessing City-County Data Book via DBASE III: Census CD-ROMs from the Ground Up
An Analysis Of Cd-ROM as a Long Term Archiving Solution
Authors: Oudard Denis
Published: June 2018

An Analysis Of Cd-ROM as a Long Term Archiving Solution
Electronic Reference Systems in the Year 2000: The Symposium on Advanced Information Processing and Analysis, March 24 - 26, 1992
Authors: Gladwin Lee A.
Published: June 2018

Electronic Reference Systems in the Year 2000: The Symposium on Advanced Information Processing and Analysis, March 24 - 26, 1992
Data Needs
Authors: Robbin Alice
Published: June 2018

Data Needs
Using SPIRES: The ICPSR Experience
Authors: Vavra Janet K.
Published: June 2018

Using SPIRES: The ICPSR Experience
An Archivist's Challenges: Adapting to Changing Technology and Management Techniques
Authors: Harrison Donald F.
Published: June 2018

An Archivist's Challenges: Adapting to Changing Technology and Management Techniques
Data Services Assists Teaching and Research: Delivery of Data Services via the World Wide Web
Authors: Kroeker Brian
Published: June 2018

Data Services Assists Teaching and Research: Delivery of Data Services via the World Wide Web
The ARL GIS Literacy Project: Support for Government Data Services in the Digital Library
Authors: French Mary
Published: June 2018

The ARL GIS Literacy Project: Support for Government Data Services in the Digital Library
Reflections on a Quest for Social Science Data in Vietnam
Authors: Tsang Daniel C.
Published: June 2018

Reflections on a Quest for Social Science Data in Vietnam
Catching Reader Responses on the Fly
Authors: Potter Rosanne G.
Published: June 2018

Catching Reader Responses on the Fly
Who Owns Contract and Grant Data and Who Can Use It?: A Look at the U.S.A.
Authors: Brown Thomas E.
Published: June 2018

Who Owns Contract and Grant Data and Who Can Use It?: A Look at the U.S.A.
Database Directories
Authors: Jim Jacobs
Published: June 2018

Database Directories
Educating the Data User: Classroom Support Services
Authors: Pollard Bobbie
Published: June 2018

Educating the Data User: Classroom Support Services
Sharing Information begets Information
Authors: Tanenbaum Eric
Published: June 2018

Sharing Information begets Information
Samples of Anonymised Records from the 1991 Census for Great Britain
Authors: Dale Angela
Published: June 2018

Samples of Anonymised Records from the 1991 Census for Great Britain
Hyperlinked Eurotrends
Authors: Gräf Lorenz
Published: June 2018

Hyperlinked Eurotrends
Text, Sound and Videotape: The Future of Qualitative Data in the Global Network
Authors: Corti Louise
Published: June 2018

Text, Sound and Videotape: The Future of Qualitative Data in the Global Network
Estonian Social Science Data Archives
Authors: Murakas Rein , Rämmer Andu
Published: June 2018

Estonian Social Science Data Archives
A Data Archive for Social Sciences in Romania
Authors: Dusa Adrian
Published: June 2018

A Data Archive for Social Sciences in Romania
Overview of a Proposed Standard for the Scholarly Citation of Quantitative Data
Authors: King Gary
Published: June 2018

Overview of a Proposed Standard for the Scholarly Citation of Quantitative Data
The Conduct of User Surveys
Authors: McDonald Dennis D.
Published: June 2018

The Conduct of User Surveys
Information Literacy, Statistical Literacy, Data Literacy
Authors: Shields Milo
Published: June 2018

Information Literacy, Statistical Literacy, Data Literacy
Data Protection and Privacy in the United States and Europe
Authors: Stratford Jean Slemmons , Stratford Juri
Published: June 2018

Data Protection and Privacy in the United States and Europe
Action Group Reports
Authors: Laube Sheldon , Gammell William , Harrison Donald F.
Published: June 2018

Action Group Reports
News and Notes
Authors: Geda Carolyn L.
Published: June 2018

News and Notes
Directions of Major Archives
Authors: Henrichsen Bjørn
Published: June 2018

Directions of Major Archives
Can the Library and the Data Archive Meet in Active Support of Research in the Social Sciences? The Case of ILSES
Authors: De Vries Repke
Published: June 2018

Can the Library and the Data Archive Meet in Active Support of Research in the Social Sciences? The Case of ILSES
Documenting Religion Worldwide: Decreasing the Data Deficit
Authors: Grim Brian J. , Finke Roger
Published: June 2018

Documenting Religion Worldwide: Decreasing the Data Deficit
Learning and Teaching with the UK Census
Authors: Carter Jackie , Brown Mark , Chappell Cressida
Published: June 2018

Learning and Teaching with the UK Census
GAMBARAN PENGETAHUAN IBU HAMIL TRIMESTER III TENTANG TANDA-TANDA BAHAYA KEHAMILAN BERDASARKAN USIA, PENDIDIKAN DAN PEKERJAAN DI BPS SULASTINI A.Md.Keb
Authors: Fajrin Fitriana Ikhtiarinawati
Published: June 2018

Penelitian ini bertujuan untuk: 1) Mengidentifikasi pengetahuan ibu hamil Trimester III tentang tanda-tanda bahaya kehamilan berdasarkan usia. 2) Mengidentifikasi pengetahuan ibu hamil Trimester III tentang tanda-tanda bahaya kehamilan berdasarkan pendidikan. 3) Mengidentifikasi pengetahuan ibu hamil Trimester III tentang tanda-tanda bahaya kehamilan berdasarkan pekerjaan.Penelitian ini menggunakan rancangan penelitian Deksriptif Cross Sectional. Populasi dalam penelitian ini adalah seluruh ibu hamil trimester III yang memeriksakan kehamilannya pada bulan Maret - Mei 2017di BPS Sulastini A.Md.Keb. Desa Masaran, Kecamatan Banyuates, Kabupaten Sampang. Sampel dalam penelitian ini adalah semua populasi dijadikan sebagai sampel. Instrumen yang digunakan dalam penelitian ini adalah kuesioner.Hasil penelitian ini menunjukkan:1). Pengetahuan ibu hamil trimester III tentang tanda-tanda bahaya kehamilan berdasarkan usia, sebagian besar usia reproduksi sehat (20-35 tahun) memiliki pengetahuan baik. 2). Pengetahuan ibu hamil trimester III tentang tandatanda bahaya kehamilan berdasarkan pendidikan, sebagaian besar pendidikan menengahpengetahuan baik. 3). Pengetahuan ibu hamil trimester III tentang tanda-tanda bahaya kehamilan berdasarkan pekerjaan, sebagian besar responden yang bekerja dengan pengetahuan baik. Simpulan dari penelitian ini adalah usia, pendidikan dan pekerjaan ibu berpengaruh terhadap pengetahuan ibu hamil tentang tanda-tanda bahaya kehamilan TM III.Keywords: Tanda-tanda bahaya kehamilan, Usia, Pendidikan, Pekerjaan
TRANSFORMATION FEATURES OF THE DRAINED PEAT-PODZOL GLEY SOILS UNDER LONG-TERM AGRICULTURAL USE
Authors: Shevchenko V. А. , Nefedov A. V. , Ilinskiy A. V. , Morozov А. Е.
Published: June 2018

Long-term observations of the drained soil of peat-podzolic-gley light loam on ancient alluvial sands state on the example of the meliorative object "Tinky-2" showed that under the influence of agricultural use in the soil, the organic matter mineralization processes are accelerated. During the drainage process, the soil evolutionarily suffered the following changes: the peat layer was compacted, humified and mineralized, which was a reason of the transformation them into the humus horizon. Based on the monitoring studies results it was established that during 21 intensive use years the peat layer thickness was decreased by 74.5% and amounted to 5.51 inch, which in the following 20 years was decreased to a layer of 1.18 inch, and for another 14 years it became a homogeneous humus horizon containing difficulty identifiable plant remains. For half a century, the bulk density increased by 6 times and the total moisture capacity of the soil decreased by 3.6 times. Other indicators were changed significantly. So, the ash content by 2016 increased from 11.2% to 52.7%. It was a reason of the plough-layer decreasing and it mixes with the mineral sand horizon during plowing. It should also be noted that the total nitrogen content in the soil decreased by 1.13%, and total carbon by 15.3% from 1982 to 2016. The dynamics of changes in the soil acidity, phosphorus and potassium content is associated with the introduction of calcareous, organic and mineral fertilizers in the 1980s. The unsystematic exploitation of such soils leads to decrease in the agricultural products productivity and increase in energy costs. When planning these soils usage in agricultural production, it is necessary to develop and implement modern melioration technologies and techniques aimed to increase soil fertility.
WAYS TO IMPROVE OF THE AGRICULTURAL COMPLEX ENGINEERING SYSTEM FOR AGRICULTURAL MACHINERY MAINTENANCE
Authors: Ignatov V. I. , Gerasimov V. S. , Mishina Z. N. , Bogatova N. О.
Published: June 2018

The need of agricultural producers in services of the engineering system providing technical service throughout all life cycle of agricultural machines can be considered as economically reasonable and necessary engineering activity in agroindustrial complex. The implementation of technological processes of maintenance and recovery parameters of the technical condition of agricultural equipment with appropriate quality is possible only subject to the availability of specialized enterprise engineering systems in agro-industrial complex intelligent technological equipping a specific item. For keeping agricultural equipment in good operating condition and parameters of its technical condition it is necessary to use the full range of repair and service impacts that damage tolerant repair and maintenance. The work suggests measures to improve the engineering and technical system (ITS) in the agro-industrial complex of Russia. It is shown that at present the system is characterized by a weakening in the quantity and quality of the fleet of agricultural machines, which negatively affects the material and technical support of agricultural producers. To positive change of the situation it is proposed as a first-priority measure - the creation of innovative centers for high-quality repair of equipment and its components. Examples of planning of such centers with appropriate resource-saving environmentally oriented utilization of agricultural machinery are given.
Automatically Measuring Question Authenticity in Real-World Classrooms
Authors: Kelly Sean , Olney Andrew M. , Donnelly Patrick , Nystrand Martin , D’Mello Sidney K.
Published: June 2018

Analyzing the quality of classroom talk is central to educational research and improvement efforts. In particular, the presence of authentic teacher questions, where answers are not predetermined by the teacher, helps constitute and serves as a marker of productive classroom discourse. Further, authentic questions can be cultivated to improve teaching effectiveness and consequently student achievement. Unfortunately, current methods to measure question authenticity do not scale because they rely on human observations or coding of teacher discourse. To address this challenge, we set out to use automatic speech recognition, natural language processing, and machine learning to train computers to detect authentic questions in real-world classrooms automatically. Our methods were iteratively refined using classroom audio and human-coded observational data from two sources: (a) a large archival database of text transcripts of 451 observations from 112 classrooms; and (b) a newly collected sample of 132 high-quality audio recordings from 27 classrooms, obtained under technical constraints that anticipate large-scale automated data collection and analysis. Correlations between human-coded and computer-coded authenticity at the classroom level were sufficiently high ( r = .602 for archival transcripts and .687 for audio recordings) to provide a valuable complement to human coding in research efforts.
Course Choice and Achievement Effects of a System-Wide Vocational Education and Training Voucher Scheme for Young People
Authors: McVicar Duncan , Polidano Cain
Published: June 2018

Vocational education and training provision for young people is a crucial but often maligned part of the wider education sector. A common criticism, and motivation for numerous reforms across countries where training is predominantly classroom-based, is that too much training is low quality and unrelated to skill needs. This article examines the effects of a major Australian reform—replacing a centrally planned model with a system-wide voucher scheme—aimed at addressing these weaknesses. The reform led to large increases in private college enrollments, improved match between course choice and employer demand, and improved student achievement, with no adverse impact on equity.
Evaluating School Principals: Supervisor Ratings of Principal Practice and Principal Job Performance
Authors: Grissom Jason A. , Blissett Richard S. L. , Mitani Hajime
Published: June 2018

Numerous studies investigate high-stakes personnel evaluation systems in education, but nearly all focus on evaluation of teachers. We instead examine the evaluation of school principals at scale using data from the first 4 years of implementation of Tennessee’s multiple-measure administrator evaluation system. We focus specifically on the rubric-based practice ratings given by principals’ supervisors that constitute one half of principals’ overall evaluation scores. We find that supervisors’ ratings are internally consistent, relatively stable over time, and predictive of other performance measures, such as student achievement growth and teachers’ ratings of school leadership quality. However, raters fail to differentiate dimensions of principal practice, and ratings may be biased by factors, such as school poverty, outside the principal’s control.
Pendidikan Karakter Anak Usia Dini Sebagai Salah Satu Jawaban Dalam Mempersiapkan Generasi Muda Untuk Menggapai Bonus Demografi
Authors: Fakhriyani Diana Vidya
Published: June 2018

Pendidikan karakter memegang peranan yang sangat penting bagi anak usia dini. Pendidikan karakter merupakan salah satu alternatif dalam menghadapi bonus demografi. Indonesia akan menghadapi bonus demografi di tahun 2045. Sehingga, untuk mempersiapkkan generasi pada tahun 2045, maka fokus pendidikan diarahkan pada Pendidikan Anak Usia Dini. PAUD merupakan The Starting Well Index, karena disinilah karakter anak dibentuk. Pembentukan karakter akan menjadi modal utama bagi kualitas sumber daya manusia pada bonus demografi. Pembentukan karakter sangat penting untuk ditanamkan sejak dini karena merupakan suatu habit (kebiasaan) yang harus terus menerus dipraktikkan serta memerlukan keterlibatan berbagai pihak (stakeholder).
Viral Diseases of Crops in Nepal
Authors: Poudel Nabin Sharma , Khanal Kapil
Published: June 2018

Viral diseases are the important diseases next to the fungal and bacterial in Nepal. The increase in incidence and severity of viral diseases and emergence of new viral diseases causes the significant yield losses of different crops in Nepal. But the research and studies on plant viral diseases are limited. Most of the studies were focused in viral diseases of rice (Rice tungro virus and Rice dwarf virus), tomato (Yellow leaf curl virus) and potato (PVX and PVY). Maize leaf fleck virus and mosaic caused by Maize mosaic virus were recorded as minor disease of maize. Citrus Tristeza Virus is an important virus of citrus fruit in Nepal while Papaya ringspot potyvirus, Ageratum yellow vein virus (AYVV), Tomato leaf curlJava betasatellite and Sida yellow vein Chinaalphasatellite were recorded from the papaya fruit. The Cucumber mosaic virus (CMV) and Zucchini yellow mosaic potyvirus (ZYMV) are the viral diseases of cucurbitaceous crop reported in Nepal. Mungbean yellow mosaic India virus (MYMIV) found to infect the many crops Limabean, Kidney bean, blackgram and Mungbean. Bean common mosaic necrosis virus in sweet bean, Pea leaf distortion virus (PLDV), Cowpea aphid‐borne mosaic potyvirus (CABMV), Peanut bud necrosis virus (PBNV) in groundnut, Cucumber mosaic virus (CMV). Chili veinal mottle potyvirus (CVMV) and Tomatoyellow leaf curl gemini virus (TYLCV) were only reported and no any further works have been carried out. The 3 virus diseases Soyabean mosaic (SMV), Soybean yellow mosaic virus and Bud blight tobacco ring spot virus (TRSV) were found in soybean.Int. J. Appl. Sci. Biotechnol. Vol 6(2): 75-80
Some Aspects of Nitrogen Management and Its Real Time Application in Direct Seeded Rice Using Leaf Color Chart
Authors: Subedi Purushottam , Panta Salina
Published: June 2018

Proper application of nitrogen (N) fertilizer is vital to improve the growth and grain yield of rice crop. As there prevails more aerobic period in direct seeded rice, nitrogen loss is generally more in such environment. Therefore, nitrogen recommendation for direct seeded rice is slightly higher (22.5-30 Kg ha-1) than that under the transplanted rice. Insufficient and/or inappropriate nitrogen fertilizer application is highly critical to the crops. Optimal nitrogen management strategies aim at matching the nitrogen fertilizer supply to the actual crop demand. Leaf color is generally used as a visual and subjective indicator of the rice crop need for nitrogen fertilizer. The Leaf Color Chart is a simple and inexpensive tool for real time nitrogen management in rice. It helps farmers to improve their decision-making process in nitrogen management. It provides the idea of when and how much nitrogen fertilizer to apply based on relative greenness of the rice leaf. In overall, LCC based nitrogen management improves productivity and profitability of the rice crop by nitrogen saving and ensuring its higher use efficiency.Int. J. Appl. Sci. Biotechnol. Vol 6(2): 81-86
A Comparative Study of Fe (II) Ion Adsorption onto Chemically Activated Banana Peel and Sawdust Bio-adsorbent
Authors: Shrestha Suman Lal
Published: June 2018

The adsorption capacity of ferrous ions onto bio-sorbents prepared from two different types of bio-waste of banana peel (CABP) and sawdust (CASD) treated with sulfuric acid was studied using Langmuir and Freundlich isotherms. Result shows that the optimum pH value for about 99 % Fe (II) adsorption onto the CABP and CASD was found to be 3 and 4, respectively, after 5 hours or more contact time period. Both the Langmuir and Freundlich adsorption models are fitted to remove the Fe (II) ions from aqueous solution by the bio-adsorbent of CABP and CASD. The maximum adsorption capacities for the CABP and CASD were found to be about 34 and 116 mg/g, respectively. These results showed that the CASD seems to be more effective bio-adsorbent than the CABP to remove the Fe (II) ions from drinking or/and wastewaters.Int. J. Appl. Sci. Biotechnol. Vol 6(2): 137-141
Soil Fertility Mapping of Different VDCs of Sunsari District, Nepal Using GIS
Authors: Rawal Nabin , Acharya Keshav Kumar , Bam Chet Raj , Acharya Kamal
Published: June 2018

Soil fertility degradation has become a major problem for agricultural management in Nepal. A detailed soil fertility status of different VDCs of Sunsari district was investigated during 2015 and soil related crop production constraints were identified for proper utilization of agricultural land. Total 131 numbers of geo-referenced (GPS based) composite surface soil samples (0-15 cm) were collected from eleven Village Development Committees of Sunsari District. The sample points were recorded with a differential global position system and mapped using Geographic Information System (GIS). Soils were analyzed for mechanical composition, pH, organic matter, total nitrogen, available phosphorus, potassium and micronutrients like Boron, Zinc, Copper and Iron. About 38.9% soils were found to be silty clay loam, 20.6% were silty clay, 19.1% were clay loam and 21.4% were of other textural classes. Most of the soils were acidic and only few were neutral and slightly alkaline in nature. Soil Organic matter varies from 3.57% to 0.28% with a mean value of 1.53 %. The mean total nitrogen, available phosphorus, potassium was found to be 0.08%, 44.37 kg/ha and 128.04 kg/ha respectively. The mean hot water extractable Boron, DTPA extractable Copper, Zinc and Iron was found to be 0.14, 0.06, 0.15 and 10.71 mg/kg respectively. Thematic maps were prepared for each soil parameters using ArcGis10.1 software and ordinary Kriging interpolation was used in order to predict values for not sampled locations. The fertility maps provide the readymade source of information about soil fertility status and serve as the decision making tool for successful raising and development of crops. It can be concluded from the above study that GPS and GIS based soil fertility maps helps farmers, scientists, planners and students in providing soil test based fertilizer recommendation for intensive and sustainable site specific crop production.Int. J. Appl. Sci. Biotechnol. Vol 6(2): 142-151
Intratesticular Injection of Calcium Chloride Is a Useful Alternative for Neutering the Male Dog
Authors: Puri Bikash , Shah Manoj Kumar , Thakur Bablu , Regmi Bharat , Dhakal Ishwor
Published: June 2018

Nepal is a rabies endemic country where stray and community dogs are the main reservoir of this life threatening diseases. The orchidectomy is performed to control the male dog population, which is supposed to be very painful and invasive thereby not rational in context of animal welfare. Therefore present study was undertaken to study the efficacy of single intratesticular injection of calcium chloride for neutering of the male dog. Twelve apparently healthy male dogs were randomly allocated into 3 groups (n=4). Group-I received single bilateral intratesticular injection of 20% calcium chloride together with 1% lignocaine-HCl at dose determined accordingly with testicular width. Similarly, Group-II received a single bilateral intratesticular injection of sterile normal saline containing 1% lignocaine-HCl. However, the orchidectomy was performed following the standard surgical protocol in the dogs of Group-III. Histopathologically, the calcium chloride injected testicular section demonstrated dissolution of the germ cell association, atrophied seminiferous tubules and washing out of the germ cells from the tubules. In some area, there was coagulative necrosis of the seminiferous epithelium and interstitial spaces as well as degenerated and coagulated germ cells in combination with fibrous tissue. Intertubular edema, fibrosis, hemorrhage were also evident. Some necrotic cells showed desquamation or even calcification. Intertubular vessels were severely congested. There was complete loss of tubular architecture without any distinct boundary between the tubular and extra tubular compartment in some region of testis. The intratesticular injection of 20% calcium chloride did not show any apparent pain, stress, metabolic toxicity and untoward side effect. Histomorphological findings revealed the uneven distribution of damage and inconsistent affect on seminiferous tubules. Therefore, intratesticular injection of calcium chloride could be useful alternative for neutering the male dog.Int. J. Appl. Sci. Biotechnol. Vol 6(2): 158-163
Effect of Tillage, Residue Management and Cropping System on the Properties of Soil
Authors: Thapa Bibek , Pande Keshab Raj , Khanal Baburam , Marahatta Santosh
Published: June 2018

A field experiment was conducted to evaluate the effect of tillage practices, residue management and cropping system on soil properties at NMRP, Rampur, Chitwan from November 2015 to April 2016. The experiment was laid on Strip split design with combination of 12 different treatments i.e, zero tillage & conventional tillage as main plot in the strip, residue retention & residue removal as sub-plot factor and maize – wheat, maize + soybean – wheat & soybean – wheat cropping system as sub-sub plot factor. Three replications of the treatments were made. Soil sample before experiment and after harvest of wheat was taken (0-15cm). The experiment showed significant effect of zero tillage on organic carbon (2.169%) and on total soil nitrogen (0.112 %). Zero tillage with retention of residues is valuable tool for the conservation agriculture and helps in sustainability of soil however long-term research for the tillage management and residue retention should be conducted to highlight the major effects on change in properties of soil.Int. J. Appl. Sci. Biotechnol. Vol 6(2): 164-168
Foreign Relation of Nepal with China and India
Authors: Dahal Girdhari
Published: June 2018

Nepal is sandwiched between two giant economic and politically powerful nations - China and India. Due to its geographical proximity and historically long multi-faceted linkages to China and India, Nepal's foreign policy with China and India is not distinctly independent but is mutually interdependent. Nepal's foreign policy has always prioritized maintaining balanced relation with these two nations for safeguarding its national interests, integrity and independence. In practice, Nepal has observed friendly and cordial relation with China while the relation with India has been both friendly and hostile. Nepal is firmly committed to 'One China Policy' and had just signed OBOR (One Belt One Road) and respects India's national independence and integrity. China has shown respect to Nepal's sovereignty and has not interfered in Nepal's internal issues while India has been seen trying to influence Nepal's internal politics. The main objective of this paper is to explore the foreign relation of Nepal with, China and India. This paper makes a brief description and analysis of Nepal's foreign policy, political and economic dynamics of these relations, and new developments in Nepal-China and Nepal-India relation based on secondary sources. Election of federal, provincial and local level was held after the declaration of new constitution. Nepal's new priority in foreign relation should be economic prosperity. So, Nepal, China and India must reach a new consensus to re-build strong economic ties for mutual benefit of all.Journal of Political Science, Volume XVIII, 2018, page: 46-61