bluuebunny/crossref_metadata_2025 huggingface dataset:
Coastal Dune Vegetation Mapping Using a Multispectral Sensor Mounted on an UAS
Authors: Suo Chen , McGovern Eugene , Gilmer Alan
Published: August 2019

Vegetation mapping, identifying the type and distribution of plant species, is important for analysing vegetation dynamics, quantifying spatial patterns of vegetation evolution, analysing the effects of environmental changes and predicting spatial patterns of species diversity. Such analysis can contribute to the development of targeted land management actions that maintain biodiversity and ecological functions. This paper presents a methodology for 3D vegetation mapping of a coastal dune complex using a multispectral camera mounted on an unmanned aerial system with particular reference to the Buckroney dune complex in Co. Wicklow, Ireland. Unmanned aerial systems (UAS), also known as unmanned aerial vehicles (UAV) or drones, have enabled high-resolution and high-accuracy ground-based data to be gathered quickly and easily on-site. The Sequoia multispectral sensor used in this study has green, red, red edge and near-infrared wavebands, and a regular camer with red, green and blue wavebands (RGB camera), to capture both visible and near-infrared (NIR) imagery of the land surface. The workflow of 3D vegetation mapping of the study site included establishing coordinated ground control points, planning the flight mission and camera parameters, acquiring the imagery, processing the image data and performing features classification. The data processing outcomes included an orthomosaic model, a 3D surface model and multispectral imagery of the study site, in the Irish Transverse Mercator (ITM) coordinate system. The planimetric resolution of the RGB sensor-based outcomes was 0.024 m while multispectral sensor-based outcomes had a planimetric resolution of 0.096 m. High-resolution vegetation mapping was successfully generated from these data processing outcomes. There were 235 sample areas (1 m × 1 m) used for the accuracy assessment of the classification of the vegetation mapping. Feature classification was conducted using nine different classification strategies to examine the efficiency of multispectral sensor data for vegetation and contiguous land cover mapping. The nine classification strategies included combinations of spectral bands and vegetation indices. Results show classification accuracies, based on the nine different classification strategies, ranging from 52% to 75%.
Source Separation Using Sensor’s Frequency Response: Theory and Practice on Carbon Nanotubes Sensors
Authors: Quelennec Aurore , Duchesne Éric , Frémont Hélène , Drouin Dominique
Published: August 2019

Nowadays, there is an increased demand in integrated sensors for electronic devices. Multi-functional sensors provide the same amount of data using fewer sensors. Carbon nanotubes are non-selectively sensitive to temperature, gas and strain. Thus, carbon nanotubes are perfect candidates to design multi-functional sensors. In our study, we are interested in a dual humidity-temperature sensor. Here, we present a novel method to differentiate at least two sources using the sensor’s frequency responses based on multiwall carbon nanotubes sensors. The experimental results demonstrate that there are temperature- or moisture-invariant frequencies of the impedance magnitude, and their values depend on the sensor’s geometry. The proposed measurement model shows that source-invariant frequencies of the phase can be also determined. In addition, the source separation method is generalized to other materials or sources enabling multi-functional sensors for environment monitoring.
Combining Electromagnetic Spectroscopy and Ground-Penetrating Radar for the Detection of Anti-Personnel Landmines
Authors: A. Marsh Liam , van Verre Wouter , L. Davidson John , Gao Xianyang , J. W. Podd Frank , J. Daniels David , J. Peyton Anthony
Published: August 2019

Dual mode detectors combining metal detection and ground-penetrating radar are increasingly being used during humanitarian demining operations because of their ability to discriminate metal clutter. There are many reports in the academic literature studying metal detector and ground-penetrating radar systems individually. However, the combination of these techniques has received much less attention. This paper describes the development of a novel dual modality landmine detector, which integrates spectroscopic metal detection with ground-penetrating radar. This paper presents a feature-level sensor fusion strategy based on three features extracted from the two sensors. This paper shows how the data from the two components can be fused together to enrich the feedback to the operator. The algorithms presented in this paper are targeted at automating the location of buried, visibly obscured objects; however, the system described is also capable of collecting information which could also be used for the potential classification of such items.
Raman Analysis of Tear Fluid Alteration Following Contact Lense Use
Authors: Capaccio Angela , Sasso Antonio , Rusciano Giulia
Published: August 2019

Tear fluid is a heterogeneous solution containing mainly proteins, lipids, mucins and electrolytes, which regulates the physiology of the human eye. The complex composition of tears can be altered in the presence of eye inflammations. The use of contact lenses is one of the most frequent causes of inflammatory responses of the eye, with the related discomfort often causing the wearer to give up using them. In this paper, we exploit the potentiality of Raman Spectroscopy to analyse the biochemical changes in tear fluid in a contact lens wearer. In particular, we analysed the tear fluid collected from a volunteer as a function of the wearing time for two types of monthly contact lenses (Hydrogel and Si-Hydrogel). Our experimental results show an alteration of the relative concentrations of proteins and lipids in both of the analysed cases. More importantly, our results highlight the diagnostic sensitivity of Raman analysis to select the proper contact lens type for each wearer and optimise the lens wearing conditions.
A QoE-Oriented Uplink Allocation for Multi-UAV Video Streaming
Authors: He Chao , Xie Zhidong , Tian Chang
Published: August 2019

Video streaming has become a kind of main information carried by Unmanned Aerial Vehicles (UAVs). Unlike single transmission, when a cluster of UAVs execute the real-time video shooting and uploading mission, the insufficiency of wireless channel resources will lead to bandwidth competition among them and the competition will bring bad watching experience to the audience. Therefore, how to allocate uplink bandwidth reasonably in the cluster has become a crucial problem. In this paper, an intelligent and distributed allocation mechanism is designed for improving users’ video viewing satisfication. Each UAV in a cluster can independently adjust and select its video encoding rate so as to achieve flexible uplink allocation. This choice relies neither on the existence of the central node, nor on the large amount of information interaction between UAVs. Firstly, in order to distinguish video service from ordinary data, a utility function for the overall Quality of Experience (QoE) is proposed. Then, a potential game model is built around the problem. By a distributed self-learning algorithm with low complexity, all UAVs can iteratively update their own bandwidth strategy in a short time until equilibria, thus achieving the total quality optimization of all videos. Numeric simulation results indicate, after a few iterations, that the algorithm converges to a set of correlation equilibria. This mechanism not only solves the uplink allocation problem of video streaming in UAV cluster, but also guarantees the wireless resource providers in distinguishing and ensuring network service quality.
Modeling and Analyzing the Mutual Inductance of Rogowski Coils of Arbitrary Skeleton
Authors: Liu Xiaoyu , Huang Hui , Jiao Chaoqun
Published: August 2019

There are Rogowski coils of various shapes in the on-site measurement, and it is difficult to calculate the electrical quantities of Rogowski coils of curved skeleton and circular cross-section by simulation software. This paper proposes a theoretical derivation to calculate the mutual inductance between the conductors of any shape and Rogowski coils with skeletons of any shape. Based on the derivation, the influence of four skeleton shapes of Rogowski coils and four shapes of the primary conductors on the mutual inductance of Rogowski coils are studied by the comparison between the ideal cases and some non-ideal ones. The gap and gap compensation of the openable Rogowski coils are also considered. Experiments verify the numerical results according to the derivation. It is shown that to reduce the errors of the measurement the circular skeleton deformation should be avoided, the coil’s skeleton should be with curved angle, the primary conductor should be as straight as possible and should go through the center of the skeletons vertically. Furthermore, for the Rogowski coils of the rectangular skeleton, we propose a new skeleton structure to reduce the deviation influence of the primary conductors.
Development of a Dynamic Oriented Rehabilitative Integrated System (DORIS) and Preliminary Tests
Authors: Summa Susanna , Gori Riccardo , Freda Luigi , Castelli Enrico , Petrarca Maurizio
Published: August 2019

Moving platforms were introduced in the field of the study of posturography since the 1970s. Commercial platforms have some limits: a limited number of degrees of freedom, pre-configured protocols, and, usually, they are expensive. In order to overcome these limits, we developed a robotic platform: Dynamic Oriented Rehabilitative Integrated System (DORIS). We aimed at realizing a versatile solution that can be applied both for research purposes but also for personalizing the training of equilibrium and gait. We reached these goals by means of a Stewart platform that was realized with linear actuators and a supporting plate. Each actuator is provided by an ad hoc built monoaxial load cell. Position control allows a large range of movements and load cells measure the reactive force applied by the subject. Transmission Control Protocol/Internet Protocol (TCP/IP) guarantees the communication between the platform and other systems. We integrated DORIS with a motion analysis system, an electromyography (EMG) system, and a virtual reality environment (VR). This integration and the custom design of the platform offer the opportunity to manipulate the available information of the subject under analysis, which uses visual, vestibular, and plantar feet pressure inputs. The full access to the human movements and to the dynamic interaction is a further benefit for the identification of innovative solutions for research and physical rehabilitation purposes in a field that is widely investigated but still open.
The Impact of the Implementation of Cohesion Policy on the Sustainable Development of EU Countries
Authors: Pîrvu Ramona , Drăgan Cristian , Axinte Gheorghe , Dinulescu Sorin , Lupăncescu Mihaela , Găină Andra
Published: August 2019

The impact of implementation of cohesion policy on the sustainable development of EU countries is of great interest and presents a number of actual challenges. This research aims to evaluate the impact and the effects of the cohesion policy among the Member States using hierarchical clustering analysis in order to identify how the selected variables affect the sustainable development adopted models. The variables used in the analysis were selected on the basis of official data provided by the European Commission, SDG Index and Dashboards Reports and the EU Cohesion Monitor. The results of the research have led to the grouping of the 28 Member States in a number of six clusters, identifying performers but also those countries that have a high potential for sustainable development or which require increased attention to be sustained in recovering existing gaps. The results of the study can be a starting point for policy makers and other stakeholders involved in their efforts to support sustainable development through effective and effective policies.
Soil Water Content and Temperature Dynamics under Grassland Degradation: A Multi-Depth Continuous Measurement from the Agricultural Pastoral Ecotone in Northwest China
Authors: Yang Wenjing , Wang Yibo , He Chansheng , Tan Xingyan , Han Zhibo
Published: August 2019

The agricultural pastoral ecotone (APE) in Northwest China is an ecological transition zone in the arid area with a very fragile ecosystem. In recent years, the ecosystem has deteriorated sharply, and increasing desertification has made the regional ecosystem more vulnerable and sensitive. In this study, we analyzed (using classical statistical methods) spatial and temporal variations in soil water content (SWC) from 14 September 2016 to 22 April 2019 for high and low vegetation in two grassland sites in Yanchi County, Ningxia. The results showed that the largest average seasonal SWC occurred in autumn. The SWC of the first three layers (0 ÷ 15 cm) of the soil profile responded strongly to precipitation, whereas the SWC in deeper soil (30 ÷ 50 cm) could only be recharged markedly after continuous precipitation. Additionally, the growing process of plants proved to be a cause of variability in soil moisture profiles. Vegetation degradation sped up the course of desertification and decreased soil organic carbon content. These changes left the soil increasingly desiccated and enhanced soil variability. Meanwhile, vegetation degradation also prompted changes in soil temperature and shortened the soil’s frozen time in winter. With the acceleration of global warming, if the process of vegetation degeneration continues and soil temperatures keep rising, the ecosystem is likely to undergo irreversible degradation.
Exploring Grey Systems Theory-Based Methods and Applications in Analyzing Socio-Economic Systems
Authors: Javanmardi Ehsan , Liu Sifeng
Published: August 2019

The present study seeks to provide an overview of studies dealing with the grey systems theory from the perspective of socio-economic systems. A scoping review is conducted to explore the studies focusing grey systems theory and its applications in socio-economic systems. The publications selected for analysis were collected through searching the databases of the Web of Science, Scopus, and Science Direct. The publications were selected from 2010 to 2019, and the following keywords were used to detect them: grey systems, grey relational, grey model, grey prediction, grey control, grey incidence, grey cluster, grey decision, and grey input-output plus social, economic, and socioeconomic. Out of the 2375 records found, 147 full papers were screened. Results obtained from the studies were separated into the following categories: social network, healthcare, financial issues, sustainability, tourism, social and cultural, public sectors, urbanization, development, business, economics, demographics, innovation, and entrepreneurship. Findings showed that complexity, uncertainty, and a lack of access to a large collection of data directed researchers to rely on grey systems theory-based socio-economic systems. Furthermore, theory-based grey systems were more effective than other approaches of decision-making and analysis. Drawing on the grey systems theory-based holistic approaches and systems thinking methods helped to obtain better results in analyzing socio-economic systems.
Conformal Symmetry, Accelerated Observers, and Nonlocality
Authors: Mashhoon Bahram
Published: August 2019

The acceleration transformations form a 4-parameter Abelian subgroup of the conformal group of Minkowski spacetime. The passive interpretation of acceleration transformations leads to a congruence of uniformly accelerated observers in Minkowski spacetime. The properties of this congruence are studied in order to illustrate the kinematics of accelerated observers in relativistic physics. The generalization of this approach under conformal rescaling of the spacetime metric is examined.
On Generalized (α, ψ, MΩ)-Contractions with w-Distances and an Application to Nonlinear Fredholm Integral Equations
Authors: Lakzian Hossein , Barootkoob Sedigheh , Mlaiki Nabil , Aydi Hassen , De la Sen Manuel
Published: August 2019

The study of asymmetric structures and their applications in mathematics is interesting. One of the types of asymmetric structures on a metric space has been initiated by Kada et al. (1996) and is known as a w-distance. That lack of symmetry attracts many researchers in fixed point theory. In this manuscript, we introduce a new type of contraction named generalized ( α , ψ , M Ω ) -contractive mappings via w-distances, and then we prove some new related fixed point results, generalizing and improving the recent results of Lakzian et al. (2016) and others. At the end, we give some examples. To illustrate the usability of the new theory, we apply our obtained results to resolve a nonlinear Fredholm-integral-type equation.
Column Generation Accelerated Algorithm and Optimisation for a High-Speed Railway Train Timetabling Problem
Authors: Wang Jin , Zhou Leishan , Yue Yixiang
Published: August 2019

With the rapid development of high-speed railway (HSR) systems, the increasing demand for passenger traffic has put forward higher requirements for HSR train timetabling problems (HSRTTPs). This paper establishes two mathematical optimisation models with different optimisation objectives for an HSRTTP and solves these models through a column generation-based algorithm. However, the column generation-based algorithm has the disadvantage of a slow convergence rate, thus we put forward corresponding acceleration strategies for five stages of the algorithm: preprocessing, restricted master problem, pricing problem, branch-and-bound and postprocessing from a symmetry point between the computation efficiency and the accuracy. The effectiveness of the acceleration strategies was validated by a case study of the Beijing–Shanghai HSR. The results show that the proposed optimal acceleration strategies can increase the computation efficiency of the algorithm by 11.8× on average while ensuring the accuracy.
The Study of A New Symmetrical Rod Phase in Mg-Zn-Gd Alloys
Authors: Yue Jianhang , Feng Yun , Wu Hao , Zhou Guorong , Zuo Min , Leng Jinfeng , Teng Xinying
Published: August 2019

Quasicrystal alloys have a wide application prospect because of excellent performances and characteristics; meanwhile, magnesium alloys are known as green engineering materials because of their high specific strength and light weight. Therefore, the study of Mg-Zn-Gd quasicrystal alloys is of great significance for the development of new materials. In this paper, Mg(70-x)Zn30Gdx(x=3,4,5) alloys were prepared by a conventional casting method and the morphologies and properties of these alloys were studied. There was a new symmetrical rod phase found in the Mg66Zn30Gd4 alloy and the symmetrical rod phase was identified as a ternary phase by mapping scanning and energy dispersive spectroscopy (EDS) analysis. The Zn/Gd ratio of the symmetrical rod phase was found to be 4.8 and the TEM images obtained were different from the typical diffraction spots patterns of quasicrystalline, which means it is unlikely to be quasicrystalline. With different melt holding time, the symmetrical rod phase evolved gradually over time from a lamellar eutectic structure; differential scanning calorimetry (DSC), heat treatment, and microhardness tests showed that the melting temperature of the rod phase was 453 °C and that its thermal stability and microhardness are better than quasicrystalline. Hence, the symmetrical rod phase is a new kind of complex metallic alloy phase whose composition and properties are close to those of quasicrystals but is not quasicrystalline.
Effects of Salt Stress on the Leaf Shape and Scaling of Pyrus betulifolia Bunge
Authors: Yu Xiaojing , Shi Peijian , Hui Cang , Miao Lifei , Liu Changlai , Zhang Qiuyue , Feng Chaonian
Published: August 2019

Leaf shape can reflect the survival and development of plants in different environments. In particular, leaf area, showing a scaling relationship with other leaf-shape indices, has been used to evaluate the extent of salt stress on plants. Based on the scaling relationships between leaf area and other leaf-shape indices in experiments at different levels of salt stress, we could examine which leaf-shape indices are also related to salt stress. In the present study, we explored the effects of different salt concentration treatments on leaf dry mass per unit area (LMA), the quotient of leaf perimeter and leaf area (QPA), the quotient of leaf width and length (QWL), the areal quotient (AQ) of left and right sides of a leaf and the standardized index (SI) for bilateral symmetry. We treated Pyrus betulifolia Bunge under NaCl salt solution of 2‰, 4‰ and 6‰, respectively, with fresh water with no salt as the control. The reduced major axis (RMA) was used to fit a linear relationship of the log-transformed data between any leaf trait measures and leaf area. We found that leaf fresh weight and dry weight decrease with salt concentration increasing, whereas the exponents of leaf dry weight versus leaf area exhibit an increasing trend, which implies that the leaves expanding in higher salt environments are prone to have a higher cost of dry mass investment to increase per unit leaf area than those in lower salt environments. Salt concentration has a significant influence on leaf shape especially QWL, and QWL under 6‰ concentration treatment is significantly greater than the other treatments. However, there is no a single increasing or decreasing trend for the extent of leaf bilateral symmetry with salt concentration increasing. In addition, we found that the scaling exponents of QPA versus leaf area for four treatments have no significant difference. It indicates that the scaling relationship of leaf perimeter versus leaf area did not change with salt concentration increasing. The present study suggests that salt stress can change leaf functional traits especially the scaling relationship of leaf dry weight versus leaf area and QWL, however, it does not significantly affect the scaling relationships between leaf morphological measures (including QPA and the extent of leaf bilateral symmetry) and leaf area.
Indoxyl Sulfate Stimulates Angiogenesis by Regulating Reactive Oxygen Species Production via CYP1B1
Authors: Pei Jiayi , Juni Rio , Harakalova Magdalena , Duncker Dirk J. , Asselbergs Folkert W. , Koolwijk Pieter , van Hinsbergh Victor , Verhaar Marianne C. , Mokry Michal , Cheng Caroline
Published: August 2019

Indoxyl sulfate (IS) is an accumulative protein-bound uremic toxin found in patients with kidney disease. It is reported that IS impairs the vascular endothelium, but a comprehensive overview of all mechanisms active in IS-injury currently remains lacking. Here we performed RNA sequencing in human umbilical vein endothelial cells (HUVECs) after IS or control medium treatment and identified 1293 genes that were affected in a IS-induced response. Gene enrichment analysis highlighted pathways involved in altered vascular formation and cell metabolism. We confirmed these transcriptome profiles at the functional level by demonstrating decreased viability and increased cell senescence in response to IS treatment. In line with the additional pathways highlighted by the transcriptome analysis, we further could demonstrate that IS exposure of HUVECs promoted tubule formation as shown by the increase in total tubule length in a 3D HUVECs/pericytes co-culture assay. Notably, the pro-angiogenic response of IS and increased ROS production were abolished when CYP1B1, one of the main target genes that was highly upregulated by IS, was silenced. This observation indicates IS-induced ROS in endothelial cells is CYP1B1-dependent. Taken together, our findings demonstrate that IS promotes angiogenesis and CYP1B1 is an important factor in IS-activated angiogenic response.
The Kaposi’s Sarcoma-Associated Herpesvirus Protein ORF42 Is Required for Efficient Virion Production and Expression of Viral Proteins
Authors: Butnaru Matthew , Gaglia Marta Maria
Published: August 2019

Kaposi’s sarcoma-associated herpesvirus (KSHV), the etiologic agent of Kaposi’s sarcoma and other aggressive AIDS-associated malignancies, encodes over 90 genes, most of which are expressed only during the lytic replication cycle. The role of many of the KSHV lytic proteins in the KSHV replication cycle remains unknown, and many proteins are annotated based on known functions of homologs in other herpesviruses. Here we investigate the role of the previously uncharacterized KSHV lytic protein ORF42, a presumed tegument protein. We find that ORF42 is dispensable for reactivation from latency but is required for efficient production of viral particles. Like its alpha- and beta-herpesviral homologs, ORF42 is a late protein that accumulates in the viral particles. However, unlike its homologs, ORF42 appears to be required for efficient expression of at least some viral proteins and may potentiate post-transcriptional stages of gene expression. These results demonstrate that ORF42 has an important role in KSHV replication and may contribute to shaping viral gene expression.
Respuesta del maíz, variedad INIAP 180, a la fertilización nitrogenada en Ambuela, Pichincha, Ecuador
Authors: Marcillo Belinda L. , Pantoja José L. , Basantes Emilio R. , Montalvo Alexandra E.
Published: August 2019

variedad INIAP 180, a la FN y la dosis óptima de N (DON). Se desarrolló en Ambuela, Perucho, Quito. Además se evaluó la población, altura de planta, número de hojas, y el contenido foliar de nutrientes (parcelas con 0, 150, y 250 kg N ha-1). En la cosecha se recolectó muestras de suelo (parcelas con 0, 150, y 250 kg N ha-1) para evaluar sus propiedades químicas. La cosecha esta se hizo de forma manual, la producción de grano, reportó al 13% de humedad, y la respuesta a la FN, evaluó con el programa SAS9.3. También se recolectó las plantas del centro (3.2 m2) de cada parcela para evaluar la producción de biomasa (rastrojo). La FKno afectó las variables agronómicas (P > 0.10); pero la FN disminuyó la población (P = 0.03), aumentó la altura de planta y el número de hojas (P < 0.01), y el contenido de N en el follaje (P= 0.03). La FN aumentó la acidez del suelo por la liberación de H+ durante la nitrificación de la urea. La producción promediode grano fue de 0.72 t ha-1, y de biomasa de 2.58 t ha-1. La FK no aumentó la producción de grano o biomasa (P = 0.85 y 0.75, respectivamente). Sin embargo, hubo respuesta a la FN (P < 0.01) de tipo cuadrática platea para el grano (P < 0.01) y la biomasa (P= 0.06). La DON para el grano fue de 205 kg N ha-1, y para la biomasa de 95 kg N ha-1. La producción de grano y biomasa con la DON fueron de 1.00 y 3.00 t ha-1, respectivamente. La FN aumentó el crecimiento del maíz, lo que resultó en mayor número de hojas y mayor contenido de N en el follaje. El crecimiento pudo generar competencia y una disminución en la población. Laproducción de maíz fue baja; sin embargo, la FN aumentó la producción, mientras la FK no afectó la producción ni la respuesta a la FN.
Balance Hídrico en Tres Híbridos Tenera de Palma Aceitera (Elaeis Guineensis Jacq.) Con Riego y Sin Riego
Authors: Ortiz Katty , Calvache Marcelo
Published: August 2019

La palma Aceitera que crece bajo las condiciones de La Concordia sufre un acentuado estrés hídrico, pues soporta relativamente seis meses sin lluvia, entre julio a diciembre. La presente investigación tuvo como propósito conocer la dinámica del agua en el sistema Suelo-Planta-Atmósfera para un manejo más eficiente delriego. Hallándose en la evaluación al 90% de eficiencia diferencias significativas en la variable evapotranspiración para los factores riego e híbridos, siendo el promedio de 2.44 mm día-1. En el rendimiento no habiendo diferencias estadísticas significativas para los factores en estudio, el híbrido de mayor rendimiento es INIAP con 2.13 t ha-1 año desarrollado en la estación Santo Domingo del INIAP para la zona, seguido por ASD con 18,57 t ha-1año que demuestra adaptación al área de La Concordia y el híbrido de menor eficiencia CIRAD con 15,29 t ha-1 año.
A Two-parameter Rama Distribution
Authors: Edith U. Umeh , Ebele T. Umeokeke , Henrietta A. Ibenegbu
Published: August 2019

In this paper, a two-parameter Rama distribution is proposed. This is coined from Lindley distribution and Rama distribution. Its mathematical and statistical properties which include its shapes, moment, coefficient of variation, skewness, kurtosis, index of dispersion, hazard rate function, mean residual life function, stochastic ordering, mean deviation; Bonferroni and Lorenz curves are also discussed. The estimation of parameters has been X-rayed using methods of moment and maximum likelihood. Also AIC and BIC are used to test for the goodness of fit of the model which is applied to a real life data of hepatitis B patients. This new distribution is compared with Rama, 2-parameter Akash, 2-parameter Lindley, Akash, Shanker, Ishita, Lindley and Exponential distributions in order to determine the efficiency of the new model.
TEACHER TALKING TIME VS. STUDENT TALKING TIME: MOVING FROM TEACHER-CENTERED CLASSROOM TO LEARNER-CENTERED CLASSROOM
Authors: Kostadinovska-Stojchevska Bisera , Popovikj Ivana
Published: August 2019

Teacher talking time refers to the amount of class time the teacher spends speaking to the class, either as part of a lecture or in discussions. Particularly in ESL classes, more time needs to be given to students so they can speak more—foreign language learners improve more rapidly when they are able to practice what they’ve learned more often.Some EFL/ESL researchers say that students should speak for 70% of the lesson. Teachers should speak for 30% of the time. Of course, some lessons may require longer explanations on the part of the teacher. Or other lessons may only require a minimal amount of explanation, and 90% or more may be devoted to conversational activities. But this 70/30 figure works well as a goal in most classroom situations.

The aim of the paper is to show whether this percentage is true and achievable and whether this percentage is applicable for both literature and linguistic content. The results will be achieved through a research conducted with the teachers of English in both elementary and high schools in Bitola, who will answer a series of questions regarding how much they talk in class and how much time they dedicate to Q&A sessions.
Analysis of tensile properties for conductive textile yarn
Authors: LILIANA BUHU , DANIELA NEGRU , EMIL CONSTANTIN LOGHIN , ADRIAN BUHU
Published: August 2019

In this paper conductive yarns were made by coating the yarns with a solution having carbon black nanoparticles (CB)
with an average diameter of 18 nm, polyvinyl alcohol (PVA) and water. For a continuous coating deposition it is
necessary to obtain a solution of a certain consistency; for this reason, carbon black nanoparticles are mixed with the
ingredients so that the resulting film deposited as a thin layer on the yarn to be conductive, and at the same time flexible.
The carbon black nanoparticles tend to form aggregates; this is why the solution should be stirred continuously. The
yarns used as support are different from the nature, fineness and structure point of view.
Several variants of yarns were chosen in order to decide which ones are appropriate for obtaining conductive yarns that
keep their specific initial properties.
The variants of conductive yarns obtained were tested in terms of physical and mechanical properties (tensile strength,
elongation), and from the viewpoint of electrical properties, electrical resistivity was measured. After coating the
conductive layer, yarns shows greater rigidity, but can be used to obtain textile materials such as woven fabrics.
After performing the measurements, it can be concluded that the yarns coated with a conductive solution based on CB
shows electrical conductivity and can be used for obtaining conductive textile fabrics.
Factors affecting morbidity and mortality of perinatal dairy calves.
Authors: Bhakat Champak
Published: August 2019

Research article contains in depth study of following key aspects viz: Factors affecting morbidity and mortality of perinatal dairy calves.
Effect of grazing period management on growth performances of camel in climate change condition
Authors: Bhakat Champak
Published: August 2019

In order to decide the optimum time of grazing for camels during hot summer months, 10 growing camel calveswere divided into 2 equal groups. First group was sent for grazing during 10:00 h to 16:00 h daily and second groupallowed for grazing during thermo neutral period. The climatic variables were recorded daily (April 2012 to March2013). The average daily gain and total body weight gain in calves sent for grazing during relatively cool parts ofday (group 2) was significantly higher as compared to group 1 calves sent as per routine farm schedule. Theaverage intake of fodder and water from manger was higher in group 1 calves. The average DMI from manger forgroup 1 calves was higher as compared to group 2 calves. The comparative biometrics of camel calves in differentgrazing management practices revealed that body length, heart girth, height at wither, neck length were significantly(P<0.01) higher in group 2 calves as compared to group 1 calves. After 180 days of experimentation, humpcircumference vertical and hind leg length were significantly (P<0.05) increased in group 2 as compared to group1. Analysis of recorded data of climatic parameters revealed that average maximum temperature was higher duringJune 2012. The values of THI also were higher in monsoon and post monsoon months hence the practice of sendingcamel calves during relatively comfortable part of hot and hot humid months was successful in getting good growth.The relative humidity was significantly higher during morning as compared to evening period for all months. TheTHI was significantly lower during morning as compared to evening hours for all months in different climate forwhole year. Economic analysis reveals that the cost of feed per kg body weight gain was quite less in group 2 ascompared to group 1. So the practice of grazing of camel calves during cool hours of day remain profitable forfarmers by looking at the body weight gain and better body conformation in climate change condition.Key words: Biometrics, Camel, Climate change, Economics, Farmers
Management of heat stress in dairy cattle
Authors: Bhakat Champak
Published: August 2019

Research article contains in depth study of following key aspects viz: Management of heat stress in dairy cattle
Pemetaan Tempat Kos Terdekat dari Universitas Bumigora Menggunakan Metode Location Based Service (LBS)
Authors: Laila Ida , Maulachela Adam Bachtiar , Merawati Ni Luh Putu
Published: August 2019

Technology has helped many people in providing information to meet their needs. The development of information technology in the field of geography, information can be displayed better and faster through computers, one of which is a geographic information system for mapping the closest boarding house of Universitas Bumigora. The ease of obtaining boarding information is one of the demands in the city of Mataram, especially for migrants, for example students and students, especially STMIK students, Bumigora Mataram, who need temporary shelter. In finding a boarding house, it is sometimes difficult to find the closest boarding house and facilities that fit your needs because you do not know the area, so some boarders have to ask boarding information to the surrounding community or by circling the city which drains energy and costs. Based on these problems, a geographic information system is needed to map the closest boarding house from Universitas Bumigora using the Location Based Service (LBS) method, which is an application to facilitate boarders in finding temporary accommodation without having to search directly to the location. LBS is used to find the geographical position or position of a person through the website. In addition to finding the user's position, LBS can also determine the position of certain places, one of which is a boarding house. LBS is used to lock the search center point of a boarding house, namely Universitas Bumigora and change units to kilometers.
FAKTOR-FAKTOR YANG BERHUBUNGAN DENGAN KEJADIAN NYERI TULANG BELAKANG PADA MAHASISWA KEPERAWATAN
Authors: Deden Iwan Setiawan Siti Fadlilah,
Published: August 2019

Nyeri tulang belakang merupakan salah satu ganguan tulang belakang. Faktor resiko positif yang menyebabkan nyeri tulang belakang adalah bertambahnya usia, kebugaran yang buruk, kondisi kesehatan yang jelek, masalah psikologik dan psikososial, jenis pekerjaan, serta posisi tubuh atau sikap tubuh yang tidak benar pada saat duduk, tidur, maupun berdiri. Sering kali pengetahuan mengenai sikap tubuh yang benar terabaikan begitu saja. Hal ini menjadi pertanda buruk karena banyak orang menjadi tidak perduli tentang sikap tubuh yang benar, sehingga tidak sedikit orang yang mengalami nyeri tulang belakang.Penelitian untuk mengetahui hubungan usia, jenis kelamin, dan tingkat pengetahuan tentang sikap tubuh dengan kejadian nyeri tulang belakang pada mahasiswa keperawatan. Jenis penelitian kuantitatif menggunakan pendekatan deskriptik korelasional. Populasi adalah mahasiswa keperawatan di suatu universitas di Yogyakarta berjumlah 270 mahasiswa. Sampel berjumlah 65 mahasiswa, diambil menggunakan probability propotional to size (PPS) sampling. Uji statistik menggunakan Chi Square. Sebagian besar mahasiswa berjenis kelamin laki-laki yaitu sebanyak 33 responden (50,8%), berusia 22 tahun yaitu sebanyak 39 responden (60,0%), mempunyai tingkat pengetahuan tentang sikap tubuh kategori cukup yaitu 37 responden (56,9%), dan mengalami kejadian nyeri tulang belakang yaitu sejumlah 45 responden (69,8%). Hasil analisis hubungan jenis kelamin dengan kejadian nyeri diperoleh p-value sebesar 0,852. Hasil analisis usia dengan kejadian nyeri diperoleh p-value sebesar 0,138. Hasil analisis hubungan pengetahuan tentang sikap tubuh dengan kejadian nyeri diperoleh p-value sebesar 0,003. Tidak ada hubungan antara jenis kelamin dan usia dengan kejadian nyeri tulang belakang pada mahasiswa keperawatan angkatan 2011 Universitas Respati Yogyakarta. Ada hubungan tingkat pengetahuan tentang sikap tubuh dengan kejadian nyeri tulang belakang mahasiswa keperawatan angkatan 2011 Universitas Respati Yogyakarta.Kata Kunci: usia, jenis kelamin, tingkat pengetahuan tentang sikap tubuh, kejadian nyeri tulang belakang.
UJI AKTIVITAS ANTIBAKTERI INFUSA DAUN SAWO MANILA (Manilkara zapota L.) TERHADAP Escherichia coli
Authors: Hasyim Muhammad Farid , Patandung Gerfan , Irfiana
Published: August 2019

Telah dilakukan penelitian mengenai Uji Aktivitas Antibakteri Infusa Daun Sawo Manila (Manilkara zapota L.) terhadap Escherchia coli. Jenis penelitian adalah eksperimental laboratorium dengan menggunakan metode infusa dengan konsentrasi 5%, 10% dan 15% infusa Daun Sawo manila, aquadest sebagai kontrol negatif, dan ciprofloxacin sebagai kontrol positif.Dilakukan replikasi sebanyak 3 kali pada setiap kelompok perlakuan. Hasil penelitian menunjukkan adanya zona hambat selama 1x24 jam dan tidak terdapat perbedaan yang bermakna tiap konsentrasi atau tidak ada pengaruh perlakuan konsentrasi pada infusa Daun Sawo manila (Manilkara zapota L.) terhadap pertumbuhan Escherchia coli dengan rata-rata zona hambat yang dihasilkan pada konsentrasi 5% sebesar 9,72 mm, 10% sebesar 10,68 mm dan 15% sebesar 12,38 mm. Dari penelitian ini disimpulkan bahwa infusa daun sawo manila (Manilkara zapota L.) mempunyai aktivitas antibakteri terhadap pertumbuhan Escherichia coli.
Studi Perbandingan Tingkat Pengetahuan Masyarakat Tentang Obat Herbal Dan Obat Sintetik Di Campagayya Kelurahan Panaikang Kota Makassar
Authors: H. Ambo Lau Sulfiyana , Herman Herman , M. Rahmat
Published: August 2019

Telah dilakukan penelitian mengenai Studi Perbandingan Tingkat Pengetahuan Masyarakat Tentang Obat Herbal dan Obat Sintetik di Campagayya Kelurahan Panaikang Kota Makassar. Penelitian ini bertujuan untuk mengetahui sejauh mana tingkat pengetahuan manyarakat tentang obat herbal dan obat sintetik di Campagayya Kelurahan Panaikang Kota Makassar. Penelitian ini adalah penelitian deskriptif yang mencakup survey dengan teknik pengumpulan data berupa kuesioner. Penelitian ini dilaksanakan di Campagayya Kelurahan Panaikang Kota Makassar pada bulan Maret 2019 dengan jumlah sampel 52 orang dengan criteria umur 17-66 tahun, berpendidikan minimal SMA, bias berkomunikasi dan bersedia diwawancarai. Hasil penelitian menunjukkan bahwa tingkat pengetahuan masyarakat di Campagayya Kelurahan Panaikang Kota Makassar tentang obat herbal dan obat sintetik masuk dalam kategori sedang dengan masing masing persentasi yaitu 65,2% dan 62,1% yang menyatakan bahwa pengetahuan masyarakat tentang obat herbal lebihtinggi dibandingkan dengan obat sintetik.
Three new species of Lythraceae and one new species of Stemonaceae described from Indochina
Authors: de Wilde W.J.J.O. , Duyfjes B.E.E.
Published: August 2019

Formal description of some new taxa from Indochina include in Lythraceae a new species of Lagerstroemia, L. poilanei W.J.de Wilde & Duyfjes with two varieties, var. poilanei andvar. grandis W.J.de Wilde & Duyfjes, two new species of Rotala, R.
saxatilis W.J.de Wilde & Duyfjes and R. protracta W.J.de Wilde & Duyfjes and a new variety of Rotala indica, Rotala indica (Willd.) Koehne var. minima W.J.de Wilde & Duyfjes. In Stemonaceae a new species, Stemona hirtella W.J.de Wilde
& Duyfjes, is described.
Fauna of nocturnal moth species collected in a semi-natural grassland at Kanpu-zan in northern Japan
Authors: Kamikura Masaru , Sakata Yuzu
Published: August 2019

Semi-natural grasslands, which house species-rich ecosystems, have rapidly declined since the twentieth century due to land-use practices, such as agricultural intensification and abandonment. Owing to their diversity and known habitat associations, nocturnal moths are considered as one of the most suitable organisms to be studied for assessing the dynamics of species composition as a result of changes in landscape management of semi-natural grasslands. The present study provides the foremost description of nocturnal moth fauna of the semi-natural grassland at Kanpu-zan, northern Japan. Moth population data from 1987 were compared to the data collected in 2018 to evaluate the impact of decline in grasslands on species-richness. During the field sampling in 2018, a total of 226 nocturnal moth species were detected, which was nearly two-thirds of the number of species recorded in 1987, i.e. 396 species. The values obtained in 2018 were found to be nearly constant for different sites. For both periods, it was evident that moth fauna in Kanpu-zan mainly consisted of species that relied on woody plants. Amongst the species which were only recorded in 1987, 107 species were generalists that fed on plants that are commonly distributed in Kanpu-zan. No moth species were recorded that depended upon endangered or extinct plant food sources. Thus, it is unlikely that the decline in the number of moth species in Kanpu-zan was due to the loss in plant food sources. Our results suggest that environmental factors other than food plants may have caused decline and changes in nocturnal moth fauna. More studies on various organism fauna are needed for understanding the conservation of semi-natural grassland, considering that the loss of semi-natural grasslands is one of the major threats to biodiversity.
Un médiateur entre deux univers concurrents de l’ « État social » : Édouard Fuster et les congrès internationaux des assurances sociales
Authors: Musterle Claus , Lengwiler Martin
Published: August 2019

Homme aux investissements multiples dans ce qui a été qualifié de “nébuleuse réformatrice”, Édouard Fuster débute sa carrière sociale au sein des Congrès internationaux des assurances sociales, et ce dès le début des années 1890. Notre article s’attache à mettre en lumière cet engagement premier, en le replaçant dans le contexte d’une assise internationale à vocation à la fois de lieu de circulation d’idées tout comme d’affrontements idéologiques et de réseau d’experts, voire de communauté épistémique. Acteur incontournable des Congrès, Fuster s’y distingue à plusieurs titres. Il exerce des fonctions de secrétaire du Comité permanent international avant de se voir confier également l’édition du Bulletin publié sous ses auspices. À cela s’ajoute sa disposition à faire office d’intermédiaire entre représentants germaniques et latins notamment grâce à ses connaissances linguistiques. Enfin, il profite des Congrès pour militer en faveur de ses propres visions en matière de régime d’assurances. Cet engagement l’amène d’ailleurs à œuvrer simultanément pour une statistique d’abord française puis internationale des assurances sociales.
« Compter comme les gens comptent ». La vie de calcul des ouvrières de la bonneterie auboise pendant les Trente Glorieuses
Authors: Macchi Odile
Published: August 2019

À partir d’archives personnelles d’anciennes ouvrières de la bonneterie auboise, et d’entretiens répétés, l’article vise à éclairer les calculs économiques quotidiens effectués tant sur le lieu de travail, lieu de recettes liés à la production industrielle et à des transactions informelles, qu’en dehors du travail, à travers des activités rémunératrices en argent ou en nature et à travers un contrôle précis des dépenses. La gestion du budget est omniprésente et se manifeste par une comptabilité qui peut être écrite sur des livres de compte ou effectuée à travers des actes témoignant de la capacité à maîtriser et organiser recettes et dépenses. La lecture des documents individuels de comptes à la lueur des descriptions des actions et des évaluations quotidiennes des agents permet de restituer les logiques économiques singulières qui orientent les vies ouvrières, et de souligner le rôle central des femmes dans le déploiement de ces logiques.
La loi « libertés et responsabilités des universités » : origines, apports et bilan de la mise en œuvre
Authors: Cytermann Jean-Richard , Aimé Pascal
Published: August 2019

L’adoption de la loi du 10 août 2007 dite loi « libertés et responsabilités des universités » (LRU) est intervenue après vingt-cinq ans de massification de l’accès à l’enseignement supérieur. Son but était de rendre l’université française plus attractive, de rendre sa gouvernance plus efficace et d’améliorer la visibilité internationale de sa recherche. Si elle a pu apparaître comme une rupture importante dans l’histoire du système d’enseignement supérieur et de recherche français, les auteurs soulignent qu’elle intervient aussi dans une double continuité. Elle se rattache d’une part aux principes du nouveau management public et au continuum de réformes allant de la LOLF aux dispositions de la loi de programme de 2006 pour la recherche. Elle s’inscrit d’autre part dans le mouvement plus ancien et d’inspiration plus progressiste, de la « longue marche » des universités vers plus d’autonomie et plus de responsabilités, symbolisée par diverses mesures prises dans la période 1990-2000. En s’appuyant sur les travaux de l’Inspection générale de l’administration de l’éducation nationale et de la recherche menés de 2008 à nos jours et sur l’expérience acquise dans leurs fonctions antérieures, les auteurs dressent un bilan du nouveau modèle économique, de la professionnalisation corrélative des services en matière de gestion et de l’évolution de la gouvernance des organes dirigeants.