bluuebunny/crossref_metadata_2025 huggingface dataset:
3DMGNet: 3D Model Generation Network Based on Multi-Modal Data Constraints and Multi-Level Feature Fusion
Authors: Wang Ende , Xue Lei , Li Yong , Zhang Zhenxin , Hou Xukui
Published: August 2020

Due to the limitation of less information in a single image, it is very difficult to generate a high-precision 3D model based on the image. There are some problems in the generation of 3D voxel models, e.g., the information loss at the upper level of a network. To solve these problems, we design a 3D model generation network based on multi-modal data constraints and multi-level feature fusion, named as 3DMGNet. Moreover, 3DMGNet is trained by self-supervised method to achieve 3D voxel model generation from an image. The image feature extraction network (2DNet) and 3D feature extraction network (3D auxiliary network) are used to extract the features of the image and 3D voxel model. Then, feature fusion is used to integrate the low-level features into the high-level features in the 3D auxiliary network. To extract more effective features, each layer of the feature map in feature extraction network is processed by an attention network. Finally, the extracted features generate 3D models by a 3D deconvolution network. The feature extraction of 3D model and the generation of voxelization play an auxiliary role in the training of the whole network for the 3D model generation based on an image. Additionally, a multi-view contour constraint method is proposed, to enhance the effect of the 3D model generation. In the experiment, the ShapeNet dataset is adapted to prove the effect of the 3DMGNet, which verifies the robust performance of the proposed method.
ClothFace: A Batteryless RFID-Based Textile Platform for Handwriting Recognition
Authors: He Han , Chen Xiaochen , Mehmood Adnan , Raivio Leevi , Huttunen Heikki , Raumonen Pasi , Virkki Johanna
Published: August 2020

This paper introduces a prototype of ClothFace technology, a battery-free textile-based handwriting recognition platform that includes an e-textile antenna and a 10 × 10 array of radio frequency identification (RFID) integrated circuits (ICs), each with a unique ID. Touching the textile platform surface creates an electrical connection from specific ICs to the antenna, which enables the connected ICs to be read with an external UHF (ultra-haigh frequency) RFID reader. In this paper, the platform is demonstrated to recognize handwritten numbers 0–9. The raw data collected by the platform are a sequence of IDs from the touched ICs. The system converts the data into bitmaps and their details are increased by interpolating between neighboring samples using the sequential information of IDs. These images of digits written on the platform can be classified, with enough accuracy for practical use, by deep learning. The recognition system was trained and tested with samples from six volunteers using the platform. The real-time number recognition ability of the ClothFace technology is demonstrated to work successfully with a very low error rate. The overall recognition accuracy of the platform is 94.6% and the accuracy for each digit is between 91.1% and 98.3%. As the solution is fully passive and gets all the needed energy from the external RFID reader, it enables a maintenance-free and cost-effective user interface that can be integrated into clothing and into textiles around us.
SNS-CF: Siamese Network with Spatially Semantic Correlation Features for Object Tracking
Authors: Ntwari Thierry , Park Hasil , Shin Joongchol , Paik Joonki
Published: August 2020

Recent advances in object tracking based on deep Siamese networks shifted the attention away from correlation filters. However, the Siamese network alone does not have as high accuracy as state-of-the-art correlation filter-based trackers, whereas correlation filter-based trackers alone have a frame update problem. In this paper, we present a Siamese network with spatially semantic correlation features (SNS-CF) for accurate, robust object tracking. To deal with various types of features spread in many regions of the input image frame, the proposed SNS-CF consists of—(1) a Siamese feature extractor, (2) a spatially semantic feature extractor, and (3) an adaptive correlation filter. To the best of authors knowledge, the proposed SNS-CF is the first attempt to fuse the Siamese network and the correlation filter to provide high frame rate, real-time visual tracking with a favorable tracking performance to the state-of-the-art methods in multiple benchmarks.
Fast Time Synchronization on Tens of Picoseconds Level Using Uncombined GNSS Carrier Phase of Zero/Short Baseline
Authors: Zhao Yinghao , Zhou Letao , Feng Wei , Xu Shaoguang
Published: August 2020

Since the observation precision of the Global Navigation Satellite System (GNSS) carrier phase is on the order of millimeters, if the phase ambiguity is correctly solved, while calibrating the receiver inter-frequency bias, time synchronization on the order of tens of picoseconds is expected. In this contribution, a method that considers the prior constraints of the between-receiver inter-frequency bias (IFB) and its random variation characteristics is proposed for the estimation of the between-receiver clock difference, based on the uncombined GNSS carrier phase and pseudorange observations of the zero and short baselines. The proposed method can rapidly achieve the single-difference ambiguity resolution of the zero and short baselines, and then obtain the high-precision relative clock offset, by using only the carrier phase observations, along with the between-receiver IFBs being simultaneously determined. Our numerical tests, carried out using GNSS observations sampled every 30 s by a dedicatedly selected set of zero and short baselines, show that the method can fix the between-receiver single-difference ambiguity successfully within an average of fewer than 2 epochs (interval 30 s). Then, a clock difference between two receivers with millimeter precision is obtained, achieving time synchronization on tens of picoseconds level, and deriving a frequency stability of 5 × 10−14 for averaging times of 30,000 s. Furthermore, the proposed approach is compared with the precise point positioning (PPP) time transfer method. The results show that, for different types of receivers, the agreement between the two methods is between −6.7 ns and 0.2 ns.
A Novel Target Detection Method of the Unmanned Surface Vehicle under All-Weather Conditions with an Improved YOLOV3
Authors: Li Yan , Guo Jiahong , Guo Xiaomin , Liu Kaizhou , Zhao Wentao , Luo Yeteng , Wang Zhenyu
Published: August 2020

The USV (unmanned surface vehicle) is playing an important role in many tasks such as marine environmental observation and maritime security, for the advantages of high autonomy and mobility. Detecting the targets on the surface of the water with high precision ensures the subsequent task implementation. However, the changes from the lights and the surface environment influence the performance of the target detecting method in a long-term task with USV. Therefore, this paper proposed a novel target detection method by fusing DenseNet in YOLOV3 to improve the stability of detection to decrease the feature loss, while the target feature is transmitted in the layers of a deep neural network. All the image data used to train and test the proposed method were obtained in the real ocean environment with a USV in the South China Sea during a one month sea trial in November 2019. The experiment results demonstrate the performance of the proposed method is more suitable for the changed weather conditions though comparing with the existing methods, and the real-time performance is available in practical ocean tasks for USV.
Barriers and Levers to Developing Wheat–Pea Intercropping in Europe: A Review
Authors: Mamine Fateh , Farès M’hand
Published: August 2020

Beyond the ecosystem benefits of diversification through wheat–pea intercropping, this review analyzes the barriers and levers to its adoption and diffusion. The present review shows that structuring the value chain around the products of this innovative cropping system faces a set of technical (i.e., varietal selection, phytosanitary issue control, crop management sequence, collection management, and storage), economic (i.e., cost, price, market opportunities, and contracting), and public policy (i.e., subsidies for ecosystem services provided by intercropping) obstacles that contribute to its slow adoption and dissemination in Europe. However, the value chain resulting from the wheat–pea intercropping system has levers to be exploited at all levels, particularly in terms of its competitive advantages, ecosystem benefits, and superior product quality. The results of this review help to identify priorities that actors of the value chain can address to better focus their efforts on significant problems and solutions that can accelerate the adoption and dissemination of this agroecological system.
“SeoulHouse2Vec”: An Embedding-Based Collaborative Filtering Housing Recommender System for Analyzing Housing Preference
Authors: Jun Han Jong , Kim Jae Hee , Rhee Deuk Young , Chang Sun Woo
Published: August 2020

Housing preference is the subjective and relative preference of users toward housing alternatives and studies in the field have been conducted to analyze the housing preferences of groups with sharing the same socio-demographic attributes. However, previous studies may not suggest the preference of individuals. In this regard, this study proposes “SeoulHouse2Vec,” an embedding-based collaborative filtering housing recommendation system for analyzing atypical and nonlinear housing preference of individuals. The model maps users and items in each dense vector space which are called embedding layers. This model may reflect trade-offs between the alternatives and recommend unexpected housing items and thus improve rational housing decision-making. The model expanded the search scope of housing alternatives to the entire city of Seoul utilizing public big data and GIS data. The preferences derived from the results can be used by suppliers, individual investors, and policymakers. Especially for architects, the architectural planning and design process will reflect users’ perspective and preferences, and provide quantitative data in the housing decision-making process for urban planning and administrative units.
Social Entrepreneurial Intention and the Impact of COVID-19 Pandemic: A Structural Model
Authors: Ruiz-Rosa Inés , Gutiérrez-Taño Desiderio , García-Rodríguez Francisco J.
Published: August 2020

The interest in promoting social entrepreneurship projects lies in their ability to develop innovative solutions to social and environmental problems. This ability becomes even more important in situations of global crises such as that arising from COVID-19. Based on the Theory of Planned Behavior (TPB), an explanatory structural model of social entrepreneurial intention was tested, and the impact of the COVID-19 crisis on this intention was evaluated. To do this, a quantitative investigation was conducted using a survey of Spanish university students, obtaining a total of 558 responses: 324 before the COVID-19 crisis and 234 during the crisis period (February and June 2020). The results obtained make it possible to validate the explanatory model of social entrepreneurial intention from the perspective of the TPB. In addition, it shows that social entrepreneurial intention decreases in times of deep socioeconomic crises and high uncertainty, such as that caused by COVID-19.
Quantitative Modelling and Perspective Taking: Two Competencies of Decision Making for Sustainable Development
Authors: Böhm Marko , Barkmann Jan , Eggert Sabina , Carstensen Claus H. , Bögeholz Susanne
Published: August 2020

Land use change, natural resource use and climate change are challenging Sustainable Development issues (SDGs 13–15). Fostering the competencies to deal with such issues is one core task for current educational endeavors. Among these competencies, decision-making competencies are central. In detail, we investigate how learners evaluate alternative decision-making options to improve existing competence models. We exemplify our competence modelling approach using the designation of a Marine Protected Area. The cross-sectional sample consists of secondary school students and student teachers (N = 760). Partial Credit modelling shows that quantitative modelling of decision-making options is a different competence dimension than perspective taking if contextualized for Sustainable Development. In quantitative modelling, mathematical modelling is used to evaluate and reflect on decision-making options. Perspective taking covers the ability to consider different normative perspectives on Sustainable Development issues. Both dimensions show plausible (latent) correlations with related constructs within the nomological net, i.e., with qualitative arguing, economic literacy, mathematical competencies, reading competencies and analytical problem solving. Furthermore, person-abilities increase with level of education for both dimensions. The identified competence dimensions quantitative modelling and perspective taking were successfully modelled and shown to be distinct; the resulting measuring instrument is reliable and valid.
The Challenge of Transdisciplinary Research: A Case Study of Learning by Evaluation for Sustainable Transport Infrastructures
Authors: Axelsson Robert , Ljung Magnus , Blicharska Malgorzata , Frisk Michael , Henningsson Marianne , Mikusiński Grzegorz , Folkeson Lennart , Göransson Görgen , Jönsson-Ekström Sofia , Sjölund Anders , Skoog Jan , Törnblom Johan , Angelstam Per
Published: August 2020

While transdisciplinary (TD) research is desired in order to solve real world sustainability issues, this may be challenging for both academic and non-academic participants. Supporting learning through evaluation, we analyzed a project aiming at sustainable transport infrastructures. After developing a TD research framework as a benchmark, two external independent evaluators interviewed all project researchers, representatives for end-users, and donors. The evaluators compared results with the framework, and evaluators and participants critically reflected on the results together. There were three inconsistencies relative to the framework: (1) limited understanding of TD research among project management, end-users, and most of the researchers; (2) no structured learning process among end-users; instead, they expressed very diverse opinions about what they expected from the project; (3) project leaders had limited understanding of the special challenges of TD research, did not fully understand the status of the project’s social system, and thus did not act as facilitators of the required collaborative learning process. Non-academic participants saw themselves as customers and not as partners in the knowledge production process. We conclude that TD problem-solving research requires much time and needs facilitation and training. A preparatory phase with a lower level of funding would be helpful in preparing for TD processes.
Life Cycle Assessment of Wood Pellet Production in Thailand
Authors: Saosee Piyarath , Sajjakulnukit Boonrod , Gheewala Shabbir
Published: August 2020

Thailand has increased wood pellet production for export and domestic use. The variations in production processes, raw materials, and transportation related to wood pellet production make it necessary to evaluate the environmental impacts assessment. The objective of this study was to compare via Life Cycle Assessment (LCA), eight different cases of wood pellet production varying in terms of raw materials, production processes, energy use, and the format of transportation and to compare LCA of electricity production from wood pellets and fossil fuels. The comparison results show that leucaena is better as a feedstock for wood pellet production than acacia due to shorter harvest cycle and lesser use of resources. Pellet production consumes the most energy contributing significantly to the environmental impacts. The use of fossil fuels in wood pellet production and transportation also has a major contribution to the environmental impacts. Using wood pellets for electricity production is better than lignite in terms of human health, ecosystem quality and resource scarcity. Recommendations from this study include increasing yield of feedstock plants, shortening harvest cycle, reducing overuse of fertilizers and herbicides, pollution control, reducing fossil fuel use in the supply chain, good logistics, feedstock access, and offering incentives considering the externality cost.
Environmental Issues As an Indispensable Aspect of Sustainable Leadership
Authors: Woo Eun-Jung , Kang Eungoo
Published: August 2020

In an era of environmental crisis, the world is at a perilous moment. The fight between sustainability and economical choice has been a contentious matter and the world is facing environmental uncertainties today. The main purpose of the present study is to prepare an integrated exploration of the development of consciousness in all business categories. This study also focuses on the indispensable roles and impact of top management in merging the commitment and abilities to environmental leadership and thus, adds a contemporary insight into how businesses, economic stakeholders, government authorities, and the general human sphere can mitigate the runaway menace of environmental issues. Finally, the current authors conclude that the environment is the supernatural force that is making life a possibility on the planet. Therefore, every human operation should be regulated by the approaches mentioned in this study and efforts made through the strategic principles and theories of leadership.
Feature Selection Methods Simultaneously Improve the Detection Accuracy and Model Building Time of Machine Learning Classifiers
Authors: Alabdulwahab Saleh , Moon BongKyo
Published: August 2020

The detection accuracy and model building time of machine learning (ML) classifiers are vital aspects for an intrusion detection system (IDS) to predict attacks in real life. Recently, researchers have introduced feature selection methods to increase the detection accuracy and minimize the model building time of a limited number of ML classifiers. Therefore, identifying more ML classifiers with very high detection accuracy and the lowest possible model building time is necessary. In this study, the authors tested six supervised classifiers on a full NSL-KDD training dataset (a benchmark record for Internet traffic) using 10-fold cross-validation in the Weka tool with and without feature selection/reduction methods. The authors aimed to identify more options to outperform and secure classifiers with the highest detection accuracy and lowest model building time. The results show that the feature selection/reduction methods, including the wrapper method in combination with the discretize filter, the filter method in combination with the discretize filter, and the discretize filter, can significantly decrease model building time without compromising detection accuracy. The suggested ML algorithms and feature selection/reduction methods are automated pattern recognition approaches to detect network attacks, which are within the scope of the Symmetry journal.
Omnidirectional Mobile Robot Dynamic Model Identification by NARX Neural Network and Stability Analysis Using the APLF Method
Authors: Xin Liang , Wang Yuchao , Fu Huixuan
Published: August 2020

In this paper, the NARX neural network system is used to identify the complex dynamics model of omnidirectional mobile robot while rotating with moving, and analyze its stability. When the mobile robot model rotates and moves at the same time, the dynamic model of the mobile robot is complex and there is motion coupling. The change of the model in different states is a kind of symmetry. In order to solve the problem that there is a big difference between the mechanism modeling motion simulation and the actual data, the dynamic model identification of mobile robot in special state based on NARX neural network is proposed, and the stability analysis method is given. To verify that the dynamic model of NARX identification is consistent with that of the mobile robot, the Activation Path-Dependent Lyapunov Function (APLF) algorithm is used to distinguish the NARX neural network model expressed by LDI. However, the APLF method needs to calculate a large number of LMIs in practice and takes a lot of time, and, to solve this problem, an optimized APLF method is proposed. The experimental results verify the effectiveness of the theoretical method.
Hepatitis B Virus Pre-S Mutants as Biomarkers and Targets for the Development and Recurrence of Hepatocellular Carcinoma
Authors: Teng Chiao-Fang , Wu Han-Chieh , Su Ih-Jen , Jeng Long-Bin
Published: August 2020

Chronic hepatitis B virus (HBV) infection is a major risk factor for the development of hepatocellular carcinoma (HCC), the leading cause of cancer-related death worldwide. Despite progress in the prevention and therapy of HCC, high incidence and recurrence rates of HCC remain big threats, resulting in poor patient survival. Effective biomarkers and targets of HCC are therefore urgently needed for better management and to improve patient outcomes. Pre-S mutants have been well demonstrated as HBV oncoproteins that play important roles in HCC development through activation of multiple oncogenic signal pathways in hepatocytes, in vitro and in vivo. The presence of pre-S mutants in patients with chronic HBV infection and HBV-related HCC has been associated with a significantly higher risk of HCC development and recurrence after curative surgical resection, respectively. In this review, we summarize the roles of pre-S mutants as biomarkers for predicting HBV-related HCC development and recurrence, and highlight the pre-S mutants-activated oncogenic signal pathways as potential targets for preventing HBV-related HCC development.
Efecto de la adición de materiales compuestos de estireno-butadieno/plumas de pollo en la modificación de asfaltos
Authors: Ramos-Galván Claudia Esmeralda , Rivera-Armenta José Luis , Salazar Cruz Beatriz Adriana , Escobar Medina Francisco Javier
Published: August 2020

Asphalt is an important material for road construction and other applications. That is why it is done the search for materials that in combination with the asphalt generate a product of better quality, lower environmental impacts and low costs, thus allowing to be reflected greater resistance of the asphalt to the extreme climatic conditions and traffic. To cover these different needs, asphalts with a better performance must be counted, having to modify their chemical, physical and rheological properties, in order to improve their behavior to the shearing, deformation, fatigue, ageing, elasticity, etc. In this work, studied the effect of adding composite materials with polymer of the type SBS lineal (Styrene-butadiene-styrene) and the feather of chicken, taking concentrations of 1, 3 and 5 PHR (parts per hundred of rubber) in ratios of 2, 4 and 6% in relation to the weight of asphalt. Techniques were applied to characterize such as dynamic viscosity, softening point, phase separation characterization, penetration index and fluorescent microscopy. As a result, using a polymer of the linear SBS type incorporating keratin from the chicken plume as reinforcement for the asphalt does not present interesting results for application areas such as where high fluidity is required.
Internal logistics as a control and modeling tool in the processes of organizations
Authors: Chacón-Olivares Maria Del Carmen , Ruelas-Santoyo Edgar Augusto , Rico-Chagollán Mariana , López-Olivarez Jaqueline Viridiana
Published: August 2020

Nowadays, companies face scale or production volume margins accelerated to respond and meet the needs of international markets, logistics and supply chain is then a key strategy to add value and competitive advantage. Through an investigation of observation and data collection, it was determined that there is no capacity for response and control before the increase in production, it is then that the objective of this work is to establish an order in the internal flow of materials, by medium of the implementation of an internal logistics process in a company that produces aluminum parts. For which a model was created that considered variables such as: the determination of spaces, control of documented information, creation of traceability and training record formats, which produced the following results: improvement in internal flows by 80%, a correct traceability in the handling of the materials that reduced the times by 50%, in addition to the incorporation of programs of administrative platforms. Therefore, the appropriate elements that make up the adoption of the strategy and its measurement in performance indices were determined.
Relación entre rendimiento académico, actividad física y consumo de alcohol y tabaco en una población Universitaria
Authors: Gómez-Cruz Zoila , Landeros-Ramírez Patricia , Núñez-Hernández Alfonsina , Jiménez-Plascencia Cecilia
Published: August 2020

The student’s academic performance is an essential factor indicator. There are several factors that could influence on such performance, so the objective of this work was to analyze the relationship between the academic performance and different factors such as physical activity, alcohol and tobacco consumption in students of the University Center of Biological and Agricultural Sciences (CUCBA) of the Universidad de Guadalajara (UdeG). To this aim, 200 both genders students were asked to consent to apply an inquiry: The academic performance was classified into three levels: Excellent / Very Good (90-100), Good (80-89) and Regular / Bad (<80). The academic status was determined and grouped into four categories: graduates, not graduates, active and irregular. The results were analyzed by Mean Test, Standard deviation, Student's t-test and Chi-squared test. 41% of the enrolled subjects were women and 59% men. The results showed that smoking students had a lower academic performance (p <0.05) than non-smokers, however, in the present study it was not found a significant relationship between alcohol consumption or physical activity and academic performance. It is intended to contribute with proposals tending to strengthen healthy lifestyles and to improve the educacional indicators of this university community.
Características de vigor y susceptibilidad a salinidad de árboles de aguacate en las condiciones subtropicales de Jalisco, Mex.
Authors: Medina-Urrutia Victor Manuel , Reyes-Hernandez Jaime Eduardo
Published: August 2020

Objectives: This work was carried out to determine the tree size and susceptibility to salinity and tristeza of avocado trees on a high density orchard established under subtropical conditions of Sayula Jalisco, with grafted plants introduced from Michoacan. Methodology: Trees of Hass and Mendez varieties grafted on native Mexican monoembryonic rootstocks planted at 5 x 3 m, on a sandy loam soil, pH 7.3, were used. During 5 months 10,500 trees were evaluated to register the size (scale: < 2.0, 2.1-3.5 , and > 3.5 m height) and susceptibility to salinity (scale: 1,3 and 5; 1=no damage, and 5=severe damage on leaves). Contribution: A high variability was observed on size of trees. 20.0 % of trees showed a small size, less than 2 m. 30.0% reached more than 3.5 m height. Salinity expression on leaves was very evident. Most trees showed salinity symptoms with a indices of 3 to 7. Only 28 % of trees were free of salinity. The use of monoembryonic rootstocks and water salinity were the main factors inducing tree avocado variability in this region.
Potencial de producción de energía eléctrica en México empleando la circulación del parque vehicular
Authors: Castañeda-Olivares Felipe , Aguirre-Rodríguez Claudia
Published: August 2020

The production of electricity is a necessity of modern life and Mexico does not escape it. Mexico ranks 51st in the Global Electricity Competitiveness Index, according to World Economic Forum studies. Where the following sources of energy production are used. Conventional Technology: Combined Cycle, Conventional Thermoelectric, Carb, Turbo Gas, Internal Combustion, Nuclear Power. Clean and Renewable Energy: Hydroelectric, Wind, Geothermal, Solar Photovoltaic and Solar Thermal. Electrical power is also imported from the United States. The objective of this research is to make known other possibilities of generating electricity that have not been explored in Mexico or contemplated in the Program for the Development of the National Electrical System (PRODESEN, 2018-2032). The hypothesis put forward as a proposal is that the 38 million motor vehicles that exist and circulate on the country’s roads and highways can be used to generate electricity through piezoelectric generators and wind turbines. Based on the planning scenario estimates, the maximum integrated demand of the National Interconnected System (SIN) projects an average annual growth of 3.2% between 2018 and 2032. To achieve this growth, it is necessary to consider all the possibilities of energy production and its profitability.
Pemanfaatan Kriopreservasi untuk Penyimpanan Bibit Anggrek Jangka Panjang
Authors: Setiaji Arkan , Annisa Rr Rifka
Published: August 2020

ABSTRAKTanaman anggrek (Orchidaceae) telah menjadi komoditas penting di pasar perdagangan internasional karena keeksotisan dan daya tahan bunganya. Meskipun keragaman anggrek spesies menduduki peringkat kedua setelah Asteraceae dan hibridanya menduduki peringkat pertama, namun anggrek menghadapi ancaman kepunahan dan penurunan kualitas genetik. Program pemuliaan, seperti persilangan dan penyisipan gen unggul, serta perbanyakan in vitro perlu didukung dengan cara memastikan ketersediaan eksplan. Dalam rangka penyimpanan untuk kebutuhan jangka panjang, eksplan dapat disimpan menggunakan teknik kriopreservasi. Review ini bertujuan untuk memberikan gambaran umum terhadap kemajuan penelitian di bidang kriopreservasi, khususnya tanaman anggrek. Melalui program penyimpanan jangka panjang, gen-gen dan eksplan unggulan baik untuk pengembangan anggrek hibrida atau khususnya untuk tujuan konservasi anggrek langka bisa dipastikan ketersediaannya. Dalam artikel review ini telah dibahas berbagai riset tentang teknik kriopreservasi pada biji, protokorm, dan serbuk sari anggrek. Kemajuan pengembangan teknik telah dicapai, namun masih diperlukan banyak modifikasi agar suatu protokol kriopreservasi dapat diterapkan pada semua spesies dan hibrida anggrek.Kata kunci: kriopreservasi; anggrek; suhu dingin; eksplan ABSTRACTOrchid plants (Orchidaceae) have become important commodities in the international trades market because of their exoticism and flower endurance. Although the diversity of orchid species is ranked second after Asteraceae and number of hybrids are ranked first, but orchids face the threat of extinction and genetic degradation. Breeding programs, including such as crossing and insertion of superior genes, and in vitro propagation need to be supported by ensuring the availability of explants. In the context of maintaining storage for long-term needs, explants can be stored using cryopreservation techniques. This review aims to provide an overview of the progress of research in the field of cryopreservation, specifically orchid plants. Through a long-term storage program, superior genes and explants both for the development of hybrid orchids or in particular for the purpose of conservation of rare orchids can be ensured availability. In this review article various researches on cryopreservation techniques in seeds, protocorms, and pollen have been discussed in this article. Advances in technical development have been achieved, but many modifications are still needed so that a cryopreservation protocol can be applied to all orchid species and hybrids.Keywords: cryopreservation; orchids; cold temperatures; explants
Tracking Footprints in a Swarm: Information-Theoretic and Spatial Centre of Influence Measures
Authors: Hepworth Adam , yaxley Kate , Baxter Daniel , Joiner Keith , Abbass Hussein
Published: August 2020

Boids (Bird-oids) is a widely used model to mimic the behaviour of birds. Shoids (Sheep-oids) rely on the same boids rules with the addition of a repulsive force away from a sheepdog to model predation risk in predator-prey dynamic. Previous work assumed homogeneous shoids. Real-world observations on sheep show non-homogeneous responses to the presence of a herding agent. We present a portfolio of information-theoretic and spatial indicators to track the footprints of shoid with different parameters from the remainder of the shoid flock. The portfolio is named the Centre of Influence to indicate that the aim is to identify the influential shoids with the highest impact on flock dynamics. We use both synthetic simulation-driven data and measurements collected from actual sheep herding trial by an Unmanned Aerial Vehicle (UAV) to validate the proposed measures. The resultant footprints will allow us in our future research to design more efficient control strategies for the UAV to improve the herding of sheep, by polarising the attention of the machine learning algorithm on those Shoids with influence footprints to drive the flock.
Kualitas Layanan dan Harga Terhadap Kepuasan Konsumen pada PT. JNE Cabang Subang
Authors: Zaenudin Udin
Published: August 2020

Tingkat perkembangan ekonomi dunia dewasa ini ditandai dengan globalisasi di segala bidang yang diiringi pula dengan tingginya tingkat mobilitas penduduk, lalu lintas uang dan barang dalam arus perdagangan. Salah satu kebutuhan yang tak kalah penting di era globalisasi ini adalah kebutuhan akan jasa pengiriman barang. Penelitian ini bertujuan untuk a) mengetahui mengetahui pengaruh kualitas layanan costumer service dan harga secara parsial terhadap kepuasan konsumen pada PT JNE Cabang Subang b) mengetahui pengaruh kualitas layanan costumer service dan harga secara simultan terhadap kepuasan konsumen pada PT JNE Cabang Subang. Populasi dalam penelitian ini adalah konsumen PT JNE Cabang Subang yang berjumlah 53 orang. Metode pengumpulan data yang digunakan adalah Wawancara langsung kepada pihak – pihak yang terlibat dengan masalah yang sedang dibahas serta memberikan kuesioner kepada pelanggan PT JNE Cabang Subang  yang sesuai dengan penelitian yang dilakukan. Alat analisis yang digunakan yaitu Analisa Regresi Linier Berganda. Hasil penelitian menunjukkan bahwa secara parsial kualitas tidak berpengaruh terhadap kepuasan, hal ini di tunjukan dengan nilai t hitung 1.608 < ttabel 1.676 dan nilai Sig 0.114 lebih besar dari 0.05. Kemudian Harga secara parsial tidak berpengaruh terhadap kepuasan hal ini di buktikan dengan  nilai t hitung 0.122  <  ttabel 1.676 dan nilai Sig 0,963 lebih besar dari  0.05. Dan secara simultan atau bersama-sama nilai F hitung 1.296 < Ftabel 3.18  dan nilai Sig 0,283 lebih besar dari 0.05. berarti tidak ada pengaruh signifikan antara variabel kualitas dan harga terhadap variabel kepuasan. Mengacu pada nilai koefisien determinasi, menunjukkan sumbangan efektif kualitas pelayanan dan harga terhadap kepuasan konsumen  hanya sebesar 07.3 %, maka sehubungan dengan hal tersebut,  di harapkan lebih menfokuskan pada indikator harga seperti harga jual, kesesuaian harga dan perbandingan harga
Peran Kunjungan Keluarga Terhadap Kondisi Psikologis Narapidana di Lapas Kelas IIB Pangakalan BUN
Authors: Sutra Bahtiyar Mandala
Published: August 2020

Penelitian ini berfokus pada manfaat dalam pelaksanaan kunjungan keluarga di Lapas Kelas IIB Pangkalan Bun. Adapun metode penelitian yang digunakan adalah analisis yang bersifat deskriptif dengan pendekatan kualitatif. Hasil yang dicapai dari pelaksanaan kunjungan keluarga membawa pengaruh positif bagi kondisi psikologis narapidana jika dibandingkan dengan narapidana yang jarang ataupun tidak pernah dikunjungi. Selain itu, pelaksanaan kunjungan keluarga juga sebagai sarana hiburan bagi narapidana, hal ini pula berfungsi sebagai upaya antisipasi timbulnya kekacauan atau terjadinya kemungkinan pelarian. Namun dalam pelaksanaan kunjungan keluarga terdapat beberapa kendala, yaitu: faktor waktu, domisili dan ekonomi, kecenderungan adanya perasaan malu dan sikap kurang peduli dari keluarga narapidana. Berbagai permasalahan ditemukan dalam pelaksanaan kunjungan keluarga, beberapa alternatif pemecahan masalah dapat dilakukan dengan cara : 1) perpanjangan waktu ketika kunjungan, 2) peran serta petugas lebih ditingkatkan dalam mengikuti perkembangan narapidana, sehingga dapat dilakukan pencegahan dini terhadap hal-hal yang dapat mempengaruhi kondisi psikologis narapidana, serta perlu dilakukan pendekatan secara individual (personal approach) terhadap narapidana yang mengalami gangguan psikologis akibat tidak pernah dikunjungi, 3) perlu diadakan kunjungan massal pada hari tertentu, seperti pada Hari Besar Peringatan Kemerdekaan RI dengan memberikan undangan pada setiap keluarga narapidana.
Retrato das disciplinas de tênis dos cursos de graduação em Educação Física do estado do Paraná
Authors: Gesat René Augusto , Cortela Caio Corrêa , Balbinotti Carlos Adelar Abaide , Ginciene Guy
Published: August 2020

OBJETIVO: O objetivo desta pesquisa foi analisar a presença da disciplina que aborda conteúdos de tênis nos currículos dos cursos de Educação Física do estado do Paraná, buscando revelar aspectos da formação inicial do treinador esportivo de tênis.MÉTODOS: Trata-se de uma pesquisa documental e, para isso, foram investigados 104 cursos presenciais de Educação Física presentes em 53 Instituições de Ensino Superior do estado do Paraná. Para o desenvolvimento desta pesquisa, foi feita uma análise de documentos presentes nos sites destas instituições, os quais 20 disponibilizaram o Projeto Pedagógico de Curso (PPC) em suas páginas, 72 apresentaram a grade curricular e 29 não explicitaram nenhuma das duas informações.RESULTADOS: Dos 104 cursos de Educação Física presenciais do Paraná, 75 apresentavam informações disponíveis para análise. Deste total, 49 não possuíam o tênis ou os esportes de raquete presentes no currículo, seja como uma disciplina ou como parte dos conteúdos de alguma outra disciplina. Dos restantes, oito possuíam disciplina de tênis, sete tinham o tênis como conteúdo em outra disciplina, e 12 possuíam disciplinas de esportes de raquete que não mencionavam o tênis como um dos conteúdos abordados.CONCLUSÃO: De maneira geral, o estudo mostrou que o conteúdo tênis e/ou esportes de raquete é pouco presente nos currículos de Educação Física, impactando tanto a formação do bacharel em Educação Física quanto o licenciado.ABSTRACT. Overview of tennis in undergraduate Physical Education courses in the state of Paraná.OBJECTIVE: The aim of this research was to analyze the presence of tennis in the curricula of Physical Education courses in the state of Paraná, seeking to reveal aspects of the initial training of the tennis sports trainer.METHODS: This is a documental research and for that, 104 Physical Education courses in 53 Higher Education Institutions in the state of Paraná were investigated. For the development of this research, an analysis was made of documents present on the websites of these institutions, of which 20 made the Pedagogical Course Project available on itswebsites, 72 had the curriculum available and 29 did not provide any of those information.RESULTS: Of the 104 physical education courses in Paraná, 75 had information available for analysis. Of this total, 49 didn’t have tennis and/or racket sports present in the curriculum, either as a discipline or as part of the contents of some other discipline. Of the remainder, eight had tennis course, seven had tennis as the content of another course and 12 had racquet sports courses that do not mention tennis as one of the content covered.CONCLUSION: In general, the study showed that tennis and racket sports content is rarely present in Physical Education curricula, impacting both the formation of the Bachelor of Physical Education and the graduate.
A atividade física no discurso governamental brasileiro: análise de alguns meios de comunicação à sociedade
Authors: Carvalho Fabio Fortunato Brasil de
Published: August 2020

INTRODUÇÃO: A atividade física está presente no discurso atual do governo brasileiro (2019-2022), desde o programa de campanha e atualmente em canais institucionais e em suas redes sociais virtuais. OBJETIVO: Apresentar e discutir sucintamente a atividade física no discurso do atual governo brasileiro, na perspectiva do setor Saúde. MÉTODOS: Busca exploratória no sítio eletrônico da Secretaria de Atenção Primária à Saúde, no Instagram do Ministério da Saúde e de notícias e informações relacionadas, utilizou-se a análise de conteúdo e identificou-se as seguintes categorias: i) benefícios da atividade física para a saúde e prevenção de doenças; ii) a formulação de um programa de atividade física no SUS; iii) o discurso da vida ativa e saudável em recursos imagéticos. RESULTADOS: Foram encontradas diversas menções à atividade física relacionadas a distintos desfechos em saúde. CONCLUSÃO: O Ministério da Saúde vem usando as perspectivas informacionais que baseiam e conformam o amplo reconhecimento da atividade física relacionada à saúde e prevenção de doenças, mas há possíveis contradições entre opções e ações políticas do atual governo e a importância da atividade física. E o discurso da vida ativa e saudável em recursos imagéticos necessita buscar abarcar as complexidades relacionadas. ABSTRACT. Physical activity in the Brazilian governmental discourse: analysis of some means of communication to society. BACKGROUND: Physical activity is present in the current discourse of the Brazilian government (2019-2022), since the campaign program and currently on institutional channels and on its virtual social networks. OBJECTIVE: To briefly present and discuss physical activity in the discourse of the current Brazilian government, from the perspective of the health sector. METHODS: Exploratory search on the website of the Secretary of Primary Health Care, on the Instagram of the Ministry of Health and related news and information. Used content analysis was performed and the following categories were identified: i) health benefits of physical activity and prevention diseases; ii) the formulation of a physical activity program in SUS; iii) the discourse of active and healthy life in image resources. RESULTS: Several mentions to physical activity were found related to different health outcomes. CONCLUSION: The Ministry of Health has been using the informational perspectives that base and shape the broad recognition of physical activity related to health and disease prevention, but there are possible contradictions between current government policy options and actions and the importance of physical activity. And the discourse of active and healthy life in image resources needs to seek to encompass the related complexities.
Aplicação de metodologia de análise hierárquica (AHP) para priorização de intervenção em estações de tratamento de esgotos - Estudo de caso na Bacia do Siqueira, Fortaleza/CE
Authors: dos Santos Lima Grazielly , de Araújo Nunes Ana Bárbara , Marcelo Costa Magalhães Antônio , Ribeiro Campos Vanessa
Published: August 2020

A realidade das condições sanitárias no Ceará ainda é precária, principalmente no que se refere ao esgotamento sanitário, acarretando impactos diretos ao meio ambiente e para a sociedade do entorno. Um dos principais desafios é o gerenciamento das unidades de tratamento de esgotos já existentes. Diante disso, o objetivo deste estudo de caso é propor uma metodologia multicriterial de apoio à decisão que priorize intervenções às Estações de Tratamento de Esgotos (ETEs) da Bacia do Siqueira, localizada em Fortaleza - CE. O método escolhido é o Analytic Hierarchy Process (AHP), que trabalha com a problemática de hierarquização e permite correlacionar uma grande quantidade de alternativas e critérios. Apesar da sensibilidade do método às variações de julgamentos de valor realizadas pelos decisores, o caráter prático da pesquisa é alcançado, haja vista que a metodologia proposta está embasada em critérios de facilitada reprodutibilidade, o que permitirá ações por parte dos órgãos licenciadores e fiscalizadores das atividades de uma ETE ou por parte da própria companhia local de saneamento a fim de eliminar ou atenuar possíveis não conformidades identificadas. Palavras-chave: Análise Multicritério. AHP. Estação de Tratamento de Esgotos.
Uso de Resposta Espectral em comprimentos de onda (230~290) nm como parâmetro indireto quantitativo de COD e DQO
Authors: de Sousa Correa Jonas , Campos Marcelo , Ervolino Montanhez Bruno , Veríssimo Gonçalves Fábio , Nobuyoshi Ide Carlos
Published: August 2020

As técnicas espectrofotométricas na região do UV-VIS, atualmente, são as principais formas indiretas de determinação dos parâmetros de matéria orgânica em corpos hídricos por apresentarem resultados satisfatórios. Nesse contexto, o presente estudo visa comparar alguns métodos que empregam as Absorbâncias únicas (UV230, UV235, UV250, UV254, UV270, UV275, UV280, UV285, UV365, UV465, UV665), tendo como proposta de trabalho a integração da área de absorbância nos espectros de onda de 230 a 290 nm (A230~290) em relação a carbono orgânico dissolvido (COD), demanda química de oxigênio filtrada (DQOf) e demanda bioquímica de oxigênio (DBO). Para tanto, as análises foram realizadas em três corpos hídricos com características distintas. A fim de verificar possíveis interações, foram determinadas as razões entre as absorbâncias nos comprimentos de onda; 250 e 365 nm (E2/E3), e para 465 e 665 nm (E4/E6), Absortividade Específica a 254 nm (SUVA254) e 285 (SUVA285). De acordo com os resultados (p<0,001 e n=90), a correlação para COD apresentou uma forte relação (R=0,965), e para DQOf (R=0,8780) para A230~290, seguida em ordem decrescente; UV275>UV280> UV270>UV250>UV254, para COD e UV235>UV270> UV280>UV254>UV250> UV275> UV285, para DQO. E não houve relações de caracterização possíveis para SUVA285, e E2/E3 e E4/E6, para possíveis interações e ou comparações. Além disso, de acordo com as condições e resultados apresentados, A230-290 demonstrou ser um parâmetro promissor (p<0,001) no sentido de atuar nas estimativas de concentração de COD (R=0,98547) e DQO (R=0,9203).
Palavras-chave: UV-VIS. Matéria Orgânica. Qualidade de Água
Os efeitos da manutenção preventiva no desempenho hidráulico de um sistema de drenagem urbana do Recife - PE
Authors: Caetano da Silva Alisson , Barbosa da Silva Junior Marcos Antonio , Rosa da Silva Simone , da Silva Pereira Cabral Jaime Joaquim
Published: August 2020

A ausência de manutenção periódica, sobretudo nos sistemas de microdrenagem, tem sido um dos fatores causadores dos alagamentos nos centros urbanos do Brasil. Diante desse fato, medidas que visem à reabilitação desses sistemas são necessárias e garantem a eficiência hidráulica de toda a rede. Neste sentido, o presente trabalho avalia os efeitos da manutenção preventiva no desempenho hidráulico de uma rede de microdrenagem num eixo viário do Recife/PE que apresenta pontos de alagamento. Tal análise foi subsidiada pelas simulações hidrológico-hidráulicas de dois eventos de chuva (TR: 2 anos e TR: 10 anos), utilizando o modelo SWMM (Storm Water Management Model) e comparando os cenários de pré e pós-manutenção. Os resultados mostraram que para o evento de 2 anos, a redução do volume de alagamento foi de 80,65%, enquanto o evento de 10 anos apresentou redução de 61,93%. Em linhas gerais, constatou-se que, para a rede em questão, medidas simples de manutenção já seriam suficientes para evitar os alagamentos críticos.
Palavras-chave: Alagamentos Urbanos. Manutenção Preventiva. Microdrenagem. Modelo SWMM.