bluuebunny/crossref_metadata_2025 huggingface dataset:
Sequential anion-exchange separation of trace U, Th, Pb and lanthanides in environmental samples
Authors: Miyamoto Y. , Yasuda K. , Magara M. , Kimura T. , Usuda S.
Published: February 2021

The sequential separation technique of U, Th, Pb, and the lanthanides with a single anion-exchange column was applied to analysis of the geochemical reference sample, JB-1. The separation technique was previously developed by the authors and reported. The sample was digested and dissolved in nitric acid. Five solutions of different volume containing 0.1–1 mg of the JB-1 were loaded on the separate columns, and the elements of interest in the solution were sequentially separated. The concentrations of the elements were measured with an ICP-MS. The elements were successfully separated and alkaline metals and alkaline earth metals were effectively eliminated from the elements. The elemental concentrations were concordant with the literature values within the deviation except for that of Th. The elemental concentrations were accurately determined in ≥500 μg of the JB-1 without subtraction of processing blanks.
Classification of ores used for the radiation source in NORM as consumer products by PGAA
Authors: Furuta E. , Minowa H. , Nakahara H. , Iwaoka K. , Yonehara H.
Published: February 2021

NORM means Naturally Occurring Radioactive Material. Our object in this study is only consumer products in several kinds of NORM. The existence of NORM in our living-environment raises the radiation exposure dose of the users. This has become a world-wide issue. The sources of NORMs are mainly radionuclides in the thorium (Th) and uranium (U) series. However, we have little published information about the kinds of ores added to NORMs and there are little indications on the NORMs' labels. It is well-known that Th and U usually exist with rare earth elements. So we sought a classification method for identifying the kinds of ores added to the consumer products from the correlation of the concentration ratios of the Th/U and the Gd/Sm in NORM and ores. The conventional γ-ray spectrometry by a Ge detector for analysis of Th and U and the prompt gamma-ray activation analysis for the determination of Sm and Gd were employed. It was found that the radiation sources of NORM in the consumer products in recent markets were mainly monazite. This classification method is found to be useful to identify the ores used for the radiation sources in consumer products of NORMs.
Study of Pu(IV) and Am(III) sorption to clay minerals: laboratory experiments and modeling
Authors: Lujanienė G. , Beneš P. , Štamberg K. , Vopalka D. , Radžiūtė E.
Published: February 2021

Sorption of Pu(IV) and Am(III) to natural clay from a mixture of synthetic rainwater — cement water was studied by batch and sequential extraction experiments as a function of pH and ionic strength These experiments were intended to simulate the effect of cement dissolution, causing the release of K+, Ca2+ and other cations from solidified radioactive waste into the aqueous phass. The results indicated a complex sorption behavior of the elements studied. It was found that iron oxides play an important role in the uptake of Pu(IV), whereas ion exchange and CaCO3 are mainly responsible for the binding of Am(III) on the clay. Simplified sorption experiments were conducted with clay minerals and iron oxides, using 0.01 and 0.1 mol/L NaNO3 as background electrolyte under an Ar atmosphere, for a better understanding of the sorption mechanisms. The experimental data were interpreted using the combination of surface complexation and ion-exchange models.
Meteorological factors producing variation of tritium concentrations in Fukuoka, Japan
Authors: Yokoyama H. , Sugihara S. , Momoshima N.
Published: February 2021

Tritium concentrations of rain and river water in Fukuoka, Japan were determined by in combination of electrolytic enrichment of tritium and liquid scintillation counting. A cyclic seasonal variation is observed for tritium concentration in rain: high in winter/spring and low in summer/autumn. The detailed examination of the seasonal variation using the back trajectory analysis suggests that rain clouds arrived at Fukuoka from the Eurasia continent have higher tritium concentration than those from the Pacific Ocean. The seasonal change is concluded to be determined by migration pathway which is strongly dependent upon meteorological factors in Fukuoka. The river water of Tatara River has lower tritium concentration than rain and does not show a cyclic variation observed on rain, showing smoother change than rain, which indicates continuous supply of groundwater contained old rain to the river water. The difference of tritium concentrations between river water and rain suggest that the residence time of the groundwater should be longer than 6.8 years.
Satellite crop monitoring for Ukraine
Authors:   Space Research Institute of the National Academy of Science of Ukraine and the State Space Agency of Ukraine, Kyiv, Shelestov A.Yu. ,   National Technical University of Ukraine «Kyiv Polytechnic Institute», Kyiv, Ukraine, Yailymov B.Ya. ,   Space Research Institute of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Kyiv, Ukraine, Yailymova H.O. ,   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, Bilokonska Y.V. ,   Space Research Institute of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Kyiv, Ukraine, Nivievskyi O.V. ,   Kyiv School of Economics, Kyiv, Ukraine
Published: February 2021

Support of the economic growth of Ukrainian agriculture requires the development and effective use of innovative technologies. In particular, satellite analysis makes it possible to monitor the state of agricultural land by monitoring their qualitative and quantitative indicators of natural and climatic characteristics. Satellite monitoring of agricultural land use in Ukraine has been developed within the World Bank program “Supporting Transparent Land Governance in Ukraine” in collaboration with EOS Data Analytics and Space Research Institute National Academy of Sciences of Ukraine and State Space Agency of Ukraine. Based on the developed technology, classification maps of the land cover were built based on three data sets: ground data along roads, farmers' data, and satellite data (time series of Sentinel-2 optical data and Sentinel-1 radar data). To create classification maps, the Random Forest algorithm was used, which is implemented on the Google Earth Engine cloud platform. An accuracy assessment was carried out, and crop compared areas throughout Ukraine were obtained. According to the results of the experiment, a comparison of the classification obtained from two separate training data sets (ground data collected along roads and data of farmers) is given. As a result, a validated crop map was obtained. The map is presented on the official web-portal of the State Geocadastre of Ukraine. The main results of the analysis of the agricultural lands of Ukraine, as well as, the results of comparisons with statistical data, are presented.
“Space Science and Technology” journal: Statistics and Scientometrics for 1995–2020
Authors:   Main Astronomical Observatory of the National Academy of Sciences of Ukraine, Kyiv, Ukraine, Vavilova I.B. , Zievako V.S. ,   Yuzhnoye State Design Office, Dnipro, Ukraine, Pakuliak L.K. ,   Main Astronomical Observatory of the National Academy of Sciences of Ukraine, Kyiv, Ukraine, Potapovych L.P. ,   Yuzhnoye State Design Office, Dnipro, Ukraine
Published: February 2021

The paper deals with statistical and scientometric analysis of articles published in the scientific and practical journal “Space Science and Technology” of the NAS of Ukraine for the period 1995–2020 (125 issues and 19 supplements). Statistical analysis is performed on the geography of distribution of institutions where the authors work; the number of articles by year of publication of the magazine and by headings. A preliminary analysis of the relationship between the number of articles on various topics of the journal and the development of relevant areas of space research in Ukraine and in the world is presented.
MUSIC IN ITS POSSIBILITIES OF FORMING HUMAN EXISTENCE
Authors:   Tomsk State University (Tomsk, Russian Federation), Prikhodovskaya Ekaterina A. , Okisheva Anna A. ,   Tomsk State University (Tomsk, Russian Federation)
Published: February 2021

As you know, music exists in various forms, including in the form of a number of local works. A number of local works are messages encoded with musical expressiveness. Based on the foregoing, we can qualify music as a timeless art form, since it is music that is a means of communication between generations. According to the well-known law of K. Baer, which states the correspondence of ontogenesis and phylogenesis, the musical education of children requires extensive attention. We can assume that preferences regarding the nature, as well as the tempo and other features of a particular music, depend on the gender of the person. For example, boys will like volitional, strict, marching music more, and girls will enjoy tender, reverent and transparent. Although, here, perhaps, there are exceptions. Music is capable of exerting a positive and negative impact on a person. Entire areas of human activity, for example, a direction such as music therapy, are based on this property of musical art. With the help of the virtual intergenerational contact considered in the article, we can hear some features of that time in the works of composers of past centuries: the genres used, symbolic, national intonations. In this regard, the expansion of human existence and the possibility of contact between generations are available to us because the emotional processes, as already mentioned, are identical in people of all generations. It was previously said that music, in the context of this work, is considered as a series of local works. In accordance with this, the emotional process can also be divided into a number of local formations. Just as the emotional process acts as a series of local emotional upheavals – music consists of a number of local works. The most common methods for developing the emotional world are, as you know, reading fiction from different eras, studying paintings of different directions, getting to know the works of world classics. Familiarity with the artist’s biographical data and historical events of that time is of considerable importance for comprehending these works. The influence of music on the inner emotional world of man was thought in ancient times; myths about Amphion and Orpheus speak about this: the first with the help of music built the city walls of Thebes, the second game on the lyre pacified the shadows of Hades. Any fact of extra-musical life perceived by a person is translated into a musical text aimed at expressing an emotional shock as an event of the individual’s inner psychological world. This forms the possibility of contact between generations, which was mentioned earlier – the community of human emotions ensures the community of the existence of music at all times.
SHAPING A COMPOSITIONAL NETWORK WITH COMPUTER
Authors:   Federal State Military Educational Institution of Higher Education ", Skhaplok (Kaija Saariaho) Galina ,   Military University",   of the Ministry of Defense of the Russian Federation
Published: February 2021

The program has been entirely realized with Xavier Rodet's and Pierre Cointe's FORMES system which runs on IRCAM's VAX 11/780 computer. The version of CHANT includes the Formant Wave Functions synthesis technique as well as a bank of time-varying filters. I shaped in my mind some primary models for musical situations. Starting from these models, I intended to control various musical parameters, without forgetting their particular features. I have been interested since a long time in the idea of musical interpolation and processes. Within one sound, a simple interpolation can be made between two values, or between the circular matrix where each value, when repeated, has changed, and thus continually changes the total character of the pattern. My object is to produce a multilevel network of continually changing but controlled items. Another interesting aspect - the same rhythmic process, since these two instruments, because of their different natures, give emphasis to different aspects of a given model. For example an even ostinato of five notes changes into an ostinato of seven notes in such a way that two notes are simply divided into two. I wanted to adapt it next to the control of dynamics. One of my objectives concerning timbre is to produce a precise timbre change on each tone. This kind of pointillistic texture can then be combined with interpolations of greater line occuring within other timbre factors or other parameters. I created sounds where various timbre elements advance independently when two different times are used within the same sound. For me, the pitch organization is at present one of the most complicated themes in computer music composition, simply because the possibilities are endless and a very open, creative attitude is needed to explore them.
Protein-A_Protein-LA Sandwich ELISA v1
Authors: A Justiz-Vaillant Angel
Published: February 2021

This ELISA was used to study the interactions between Staphylococcal protein-A (SpA) and protein-LA (SpLA)with different immunoglobulin preparations of mammalian and avian species.
Protein-A_Protein-LG Sandwich ELISA v1
Authors: A Justiz-Vaillant Angel
Published: February 2021

This ELISA was used to study the interactions between Staphylococcal protein-A (SpA) and protein-LA (SpLG) with different immunoglobulin preparations of mammalian and avian species.
Protein A and Protein AG Sandwich ELISA v1
Authors: A Justiz-Vaillant Angel
Published: February 2021

This ELISA was used to study the interactions between Staphylococcal protein-A (SpA) and protein-AG (SpAG) with different immunoglobulin preparations from mammalian and avian species.
Hepatocellular carcinoma: An Update
Authors: Blum Hubert
Published: February 2021

Hepatocellular carcinoma (HCC) is one of the most common malignant tumors worldwide. The major etiologies and risk factors for the development of HCC are well defined and some of the multiple steps involved in hepatocarcinogenesis have been elucidated in recent years. Despite these scientific advances and the implementation of measures for the early detection of HCC in patients at risk, patient survival has not significantly improved during the last three decades. This is due to the advanced stage of the disease at the time of clinical presentation and the limited therapeutic options. The therapeutic options fall into several categories: (i) surgical interventions including tumor resection and liver transplantation, (ii) percutaneous interventions including ethanol injection and radiofrequency thermal ablation, (iii) transarterial interventions including embolization, chemoembolization and selective internal radiotherapy, (iv) external radiation therapy and (v) systemic strategies with cytotoxic agents and molecularly targeted therapies as well as immunotherapies. These therapeutic strategies have been evaluated in part in randomized controlled clinical trials that are the basis for actual therapeutic recommendations. While surgery, percutaneous and transarterial interventions are effective in patients with limited disease (1-3 lesions, <5 cm in diameter) and compensated underlying liver disease (cirrhosis Child A), at the time of diagnosis more than 80% of patients present with multicentric HCC and advanced liver disease or comorbidities that restrict the therapeutic measures to best supportive care (BSC). In order to reduce the morbidity and mortality from HCC, early diagnosis and the development of novel systemic therapies for advanced disease, including cytotoxic agents, molecular targeted and immunotherapies is most important. New analytical technologies, including gene expression profiling and proteomic analyses and others, should allow to further elucidate the molecular events underlying HCC development and to identify novel diagnostic markers as well as therapeutic and preventive targets.
Effect of zymosan on the expression and function of the gap-junction protein connexin 43 in human corneal fibroblasts
Authors:   Department of Ophthalmology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, Guangzhou Province, China, Zheng Xiao-Shuo , Xu Dan ,   Institute of Environmental Systems Biology, Environmental Science and Engineering College, Dalian Maritime University, Dalian 116027, Liaoning Province, China, Liu Ping-Ping ,   Department of Ophthalmology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, Guangzhou Province, China, Li Bing ,   Department of Ophthalmology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, Guangzhou Province, China, Cao Zi-Mu ,   Institute of Environmental Systems Biology, Environmental Science and Engineering College, Dalian Maritime University, Dalian 116027, Liaoning Province, China, Liu Yang ,   Department of Ophthalmology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, Guangzhou Province, China, Liu Ye ,   Department of Pathology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, Guangzhou Province, China
Published: February 2021

AIM: To study the effect of zymosan, a ligand found on the surface of fungi, on gap junctional intercellular communication (GJIC) in cultured human corneal fibroblasts (HCFs).
METHODS: Zymosan was added to the medium of cultured HCFs with or without the administration of mitogen-activated protein kinase (MAPK) inhibitors or the inhibitor kappa B kinase 2 (IKK2) inhibitor IV. The protein and mRNA levels of connexin 43 (Cx43) in HCFs were measured by Western blot, immunofluorescence, and quantitative reverse transcription-polymerase chain reaction (qRT-PCR) analyses. The GJIC activity was tested using a dye-coupling assay.
RESULTS: The reduction of Cx43 protein and mRNA levels as well as a significant decrease in GJIC activity were observed in cultured HCFs when zymosan was added into the culture medium. Compared with controls (no zymosan), the protein level of Cx43 was reduced by 45% and 54% in the presence of zymosan at 200 and 600 μg/mL, respectively (P<0.05); and it was reduced by 45%, 48%, and 75% in the presence of zymosan (600 μg/mL) for 24, 36, and 48h, respectively (P<0.05). The mRNA expression of Cx43 was reduced by 98% in the presence of zymosan (P<0.05). The effects of zymosan on Cx43 expression and GJIC activity were attenuated by the administration of PD98059 [an extracellular signal-regulated kinase (ERK) signaling inhibitor] (P<0.05), c-Jun NH2-terminal kinase (JNK) inhibitor II (P<0.05), and IKK2 inhibitor IV (P<0.05).
CONCLUSION: Zymosan inhibits the activity of GJIC in cultured HCFs. This effect is likely regulated via the nuclear factor-κB (NF-κB), MAPK/ERK, and JNK signaling pathways. The inhibitory effects of zymosan on Cx43 expression and GJIC activity in HCFs may induce damage of corneal stroma during corneal fungal infection.
Torque estimation of electric vehicle motor using adaptive-network based fuzzy inference systems
Authors: KEREM Alper
Published: February 2021

This paper presents to estimating studies of the torque data of the Electric Vehicle (EV) motor using Adaptive-Network Based Fuzzy Inference Systems (ANFIS). The real-time data set of the Outer-Rotor Permanent Magnet Brushless DC (ORPMBLDC) motor which was designed and manufactured for using in ultra-light EV, was used in these estimation process. The current, the power and the motor speed parameters are defined as input variables, and the torque parameter defined as output variable. Five distinct ANFIS models were designed for torque estimation process and the performances of each model were compared. The most effective model for testing data set among the ANFIS models was anfis: 2 with 98 nodes and 36 fuzzy rules, and the worst model was anfis: 5 with 286 nodes and 125 fuzzy rules. Performance results of all designed models were presented in tables and graphs.
Rola białka RIPK4 w fizjologii naskórka.
Authors: Wolnicka-Głubisz Agnieszka , Madej Ewelina , Lisek Anna
Published: February 2021

Białka regulujące morfogenezę naskórka zapewniają jego prawidłowa budowę oraz funkcję. Mutacje w ich obrębie prowadzą do licznych zaburzeń w pełnionej funkcji. Jednym z takich ostatnio opisanych białek jest kinaza białkowa oddziałująca z receptorem kinaz serynowo-treoninowych 4 (RIPK4). Kinaza ta w naskórku pełni ważną funkcję regulatora homeostazy pomiędzy proliferacja a różnicowaniem się keratynocytów. Mutacje w obrębie genu kodującego białko RIPK4 skutkują u ludzi letalnym zespołem Bartsocas-Papas lub zespołem mnogich płetwistości typu Aslana, a jego delecja u myszy (Ripk4-/-) prowadzi do przedwczesnej śmierci noworodków spowodowanej licznymi zrostami skórnymi. RIPK4 odgrywa rolę w stanie zapalnym skóry. Sugeruje się, że białko to w skórze pełni rolę supresora nowotworów, ponieważ jego poziom zmniejsza się w rakach kolczystokomórkowych względem skóry zdrowej, a jego indukowana delecja w modelu mysim sprzyja powstawaniu i rozrostowi brodawczaków i raków kolczystokomórkowych wywoływanych na drodze chemicznej. W pracy omówiono rodzinę białek RIP, udział białka RIPK4 w różnicowaniu się naskórka i szlakach sygnalizacyjnych, a także konsekwencje zaburzeń wywołanych jego nieprawidłową ekspresją.
Simple Iterative Channel Coding and Modulation for Harbor Wireless Communications
Authors: Andriani Olyvia Fransiska , Anwar Khoirul , Adriansyah Nachwan Mufti
Published: February 2021

Monitoring systems at the harbor require a simple communication technique to save battery energy, strong   in error correction, and suitable to the harbor channel model, of which the channel is predicted to have more number   of path. This paper proposes (i) a harbor channel model and (ii) a simple iterative repetition coding for harbor     wireless communication of monitoring systems. The harbor channel model is derived using a series of computer simulations based on real-field harbor environmental parameters, while the proposed  iterative  channel  coding  is  based on the repetition codes assisted by a doped accumulator (ACC) with a doping technique. Channel coding and doping rates are designed using an Extrinsic Information Transfer (EXIT) chart and are evaluated using a series of computer simulations in terms of Bit Error Rate (BER) and Frame Error Rate (FER) performances with an outage performance as the theoretical baseline for comparison. Since the EXIT curve of the repetition codes has steep curve,  we use a non-Gray Quadrature Phase Shift Keying (QPSK) to achieve a better matching between the decoder and  the demapper of harbor channels. We found that the proposed simple repetition codes and non-Gray demapper provide excellent performances for harbor communications with a cliff of BER curve. The results of this paper are expected to contribute to the development of a reliable wireless communications for the harbor monitoring applications.
The Growth Performance, Heterosis Value, and Crossbreeding of Selected Japanese Broiler and Malon Quail
Authors: Sujana Endang , Anang Asep , Setiawan Iwan , Widjastuti Tuti
Published: February 2021

This research aims to address the scarcity of broiler quail chicks with relatively large bodyweight. The present study that involved crossbreeding is expected to produce quality broiler DOQ with relatively large body weight, high efficiency, and adaptability. The crossbreeding between two different strains is often used in a production system to utilize hybrid (heterosis). This study aims to determine the growth performance and heterosis value of selected Japanese broiler quail and crossbreeding. The experiment distributed 480-day-old quails (DOQ) to four treatments and six replicates (20 DOQ each) in a Completely Randomized Design. The treatments included selected Japanese quail â™‚ x selected Japanese quail â™€ (JJ), Malonâ™‚ x Malonâ™€ (MM), Malonâ™‚ x selected Japaneseâ™€ (MJ), and selected Japanese â™‚ (JM) x Malonâ™€. The statistical analysis employed SAS’s PROC GLM (General Linear Model) for Duncan’s test. The observed changes were feed intake, body weight gain, feed conversion, and heterosis effect. This study found significant differences in feed intake, body weight gain, and feed conversion across treatments. The best performance was observed in the Malonx selected Japan (MJ) crossbreeding with a high weight gain (246.737 grams) and the lowest feed conversion (2,87) and feed (707.93 g).
Screening and Enzyme Activity of Cellulase-Producing Bacteria Isolated from Kemiri Sunan (Reutealis trisperma (Blanco) Airy Shaw) and Empty Fruit Bunches of the Palm Oil (Elaieis guineensis)
Authors: Yuliana Tri , Mardawati Efri , Febrianti Emilda A. , Hartono Agus T. , Rahimah Souvia
Published: February 2021

Cellulase enzymes have an important role in biocatalyst technology, especially in the pulp industry. Cellulase is synthesized by a large type of microorganisms, including cellulose-producing bacteria isolated from Kemiri Sunan (Reutealis trisperma) shell and empty fruit bunches of the palm oil (EFBPO). In this study, the screening of cellulase-producing bacteria isolated from Kemiri Sunan shell and EFBPO were carried out in order to evaluate its enzyme activity. The method used was an experimental method followed by descriptive analysis using four treatments with two repetitions. This study includes; (1) Lignocellulosic biomass analysis, (2) Isolation of cellulase-producing bacteria, (3) Qualitative assay of cellulase-producing bacteria, (4) Enzyme activity assay. Both cellulose and hemicellulose contents in Kemiri Sunan shell were 27.38% and 44.46%, respectively, and 48.55% and 28.06% in empty fruit bunches of palm oil.  Qualitative assay of cellulase-producing bacteria from Kemiri Sunan shell resulted in the widest clear zone accounting of 77.19% (isolate K2) and 73.06% (isolate T3) from EFBPO. Screening continued by measuring the cell growth with an interval time of 8, 24, 32 and 48 h. The enzyme activity showed the highest cellulase activity (isolate K3) from Kemiri Sunan shell was 4.3 í— 10-2 U/mL after 48 h incubation. However, isolate T4 from EFBPO resulted in higher cellulase activity than that Kemiri Sunan shell, accounting of 7.2 í— 10-2 U/mL. Our study suggests that cellulase-producing bacteria from Kemiri Sunan and EFBPO has been screened to synthesize cellulase enzyme.
Performance Analysis of Heuristic Miner and Genetics Algorithm in Process Cube: a Case Study
Authors: Andreswari Rachmadita , Syahputra Ismail , Lubis Muharman
Published: February 2021

Databases that are processed in the form of Online Analytical Processing (OLAP) can solve large query loads that cannot be resolved by transactional databases. OLAP systems are based on a multidimensional model commonly called a cube. In this study, OLAP techniques are applied in process mining, a method for bridging analysis based on business process models with database analysis. Like data mining, process mining produces process models by implementing the algorithms. This study implements the heuristic miner algorithm compared with genetic algorithms. The selection of these two algorithms is due to the characteristics to be able to model the event log correctly and can handle the control-flow. The capability in handling control-flow including the ability to detect hidden task, looping, duplicate task, detecting implicit/explicit concurrency, non-free-choice, the ability to mine and exploiting time, overcoming noise, and overcome incompleteness. The results of conformance checking on the heuristic miner algorithm for all data, fitness values, position, and structure are 1, 0.495, and 1, while the results of the genetic algorithm are 0.977, 0.706 and 1. Both algorithms have good ability in modeling processes and have high accuracy. The results of the F-score calculation on the heuristic miner algorithm for all data is 0.622, while the result in the genetic algorithm is 0.820. It indicates that genetic algorithms have better performance in modeling event logs based on process cube.
Palmprint Recognition Based on Edge Detection Features and Convolutional Neural Network
Authors: Darma Putra I Ketut Gede , Witarsyah Deden , Saputra Muhardi , Jhonarendra Putu
Published: February 2021

Research on biometric technology get much attention from researchers who interest in the recognition system. One of the biometric objects that will continue to be developed is the palmprint. The hand palm line has a unique characteristic in each person or may not be the same. The palmprint image is easy to capture because clearly visible, so it does not require a specific sensor. This paper presents the automatic extraction feature with Convolutional Neural Network (CNN) technique to get a unique characteristic of palmprint image and identify a person. CNN will get easier to classify the image database if it has many data. CNN belongs to Supervised Learning, which requires training data to create a knowledge base. In the dataset with little training data, the system must increase the training data using augmentation methods like zoom, shear, and rotate. Still, in the palmprint, that augmentation method can change the original character of the palmprint. Our proposed method is adding training data with an edge detection image from the original image. Edge detection used in our method is Canny and Sobel. The addition of Canny and Sobel edge detection for training data is the best combination scenario for palmprint recognition. The experiment results showed that palmprint recognition using Convolution Neural Network with Canny and Sobel edge detection for training data resulted in an accuracy rate of 96.5% for 200 classes, and the Equal Error Rate (ERR) value is 3.5%. This method has been able to recognize 193 palms of 200 people.
Assessment of Spatial Water Quality Observation of Citarum River Bandung Regency Using Multivariate Statistical Methods
Authors: Musnansyah Ahmad , Kamil Anton Abdulbasah , Marliana Linda , Widayati Endang , Zulfakriza -
Published: February 2021

Citarum River is one of the most important rivers in Indonesia. Around 16 million people interrelate with this river, covers 12,000 Km2 of the watershed, supplies water for irrigation of 420,000 hectares of rice fields, provides 80% of water need for the city of Jakarta- the capital of Indonesia. Unfortunately, Citarum was also known as one of the most polluted rivers in the world. Although there is much attention to this river nowadays, there is still no analysis to determine the latent contributing factors of water quality cluster distribution. This study aims to provide spatial water quality on the Citarum River Bandung Regency. This study can help the government decide on how to manage the water quality of Citarum and all socio-cultural factors involved in polluting the river. Open Data can also use the data and result for further research. Assessment of Citarum water quality is done through the application of multivariate statistical approaches. The data set comprises one-month observation data from 75 stations positioned in Citarum Bandung Regency and its tributaries. Factor Analysis with PCA as the extraction method gives two factors while CA showed three clusters suggesting the different physicochemical characteristics and pollution levels of the Citarum water systems. BOD, COD and DO, together with total P and Fecal Coliform are identified as two underlying factors on water quality in Citarum and its tributaries in Bandung Regency. Descriptive Statistic values confirm the quality of Citarum Bandung Regency low water quality.
Quality Signal Degradation in Single-Channel Fiber Using 10 Gbps Bit Rate
Authors: Effendi Nabila Syadzwina , Natali Yus , Apriono Catur
Published: February 2021

Reliable data transmission capacity is a crucial factor in supporting high-data-rate communication for smart cities by implementing the Internet of Things. Optical fiber has become the most favorable transmission media by taking advantage of optical signals. However, when optical signals propagate through optical fibers, disturbances occur as the transmission distance increases. These disturbances affect the system performance indicated by the deteriorating transmission data quality in terms of the quality factor (Q-factor) and bit error rate. These parameters are vulnerable to certain factors that can alter signal transmissions such as fiber attenuation, group velocity dispersion (GVD), and self-phase modulation (SPM) as a nonlinear effect. In this study, the effects of these factors on a single-channel, single-mode fiber are investigated using a bit rate of 10 Gbps at various transmission distances and source power levels. The parametric study of attenuation, GVD, and SPM with non-return-to-zero (NRZ) modulation format are considered at various transmission distances, from 10 to 100 km, and input powers of 5 and 10 dBm are simulated using OptiSystem to characterize the parameters of Q-factor and received power. The results indicate that the performance of the system deteriorates as the transmission distance increases, and the dominant effect that impacts the performance is GVD. This result is useful for designing effective and precise fiber optic transmission for high-data-rate transmission.
Doc2Vec based Question and Answer Search System
Authors: Cho HeeSeok , Kim Yong
Published: February 2021

E-learning interaction acts as a positive factor, such as improving learning commitment and learning effect and reducing the dropout rate. As an important function of e-learning interaction, if a learner queries a content that is difficult to understand during learning, a question-and-answer bulletin board that responds to the question is provided by a professor. In the way that the instructor directly answers the learner's questions, real-time feedback is difficult, and the instructor's fatigue increases. The purpose of this study is to achieve the goal of reducing answering time and reducing answering costs by developing a question-and-answer search system that automatically searches for and provides answers to questions created by learners during learning. To this end, this study designed and implemented a question-and-answer search system that provides the most similar query answers to learners by analyzing questions and answers based on Doc2Vec, one of the word embedding technologies, which is a natural language processing technology.   By applying the results of this study to the question-and-answer system, it is expected that the learning effect can be enhanced by providing an immediate answer to the learner's question. In addition, organizations that pay response fees through the national budget, such as the Korea Educational Broadcasting Corporation, will be able to focus more on investments such as improving content quality through budget reduction.
Charts for Exponentially Weighted Moving Average Classical and Robust: A Comparative Study
Authors: Saleh Aida Hadi
Published: February 2021

This research discusses the comparison between two control charts classical & robust for both types (EWMA-SMQ) and (EWMA-SM) for the exponentially weighted moving average, which is showed that the robust (EWMA-SMQ) chart for the process is a superior alternative to the (EWMA-SM) chart when the outliers are present in the data. Generally, the (EWMA-SMQ) chart enables easier detection of outliers in the subgroups and is also more sensitive to other forms of out-of-control situations when outliers are present. Hence, the (EWMA-SMQ) becomes a preferred alternative to be taken and applied in quality control. The data used in this research represent the weights of the Al-Sabah Iraqi newspaper published by the Iraqi media networks. Twenty-five samples were taken and each sample consisted of five observations. These samples were taken at different production times, as the average weight of the newspaper was approximately (150) g. Through the application of the classical control chart (EWMA), exit four points for the upper and lower control limits, and the application of (EWMA-SM), (4) points are out of the upper and lower limits of the control; the control limits have been extended from the top and bottom sides of the (EWMA-SM) chart, making it less sensitive to the diagnosis of the shift in the mean process. The (EWMA-SMQ) chart detected extra points out of control. There were (7) points out of the upper and lower limits for the control, tight control limits of the (EWMA-SMQ) chart from the top and bottom sides. Due to this narrowness, three additional points were detected. Therefore (EWMA-SMQ) chart is more robust than the (EWMA-SM) control chart. This research aims to make a comparative study between the classical and robust for both types (EWMA-SM) & (EWMA-SMQ) for the exponentially weighted moving average control chart. The most important result of the research that the (EWMA-SMQ) chart is more suitable than the (EWMA-SM) & classical (EWMA) when outliers are present in the data. This gives importance to it to control the quality of the product. By this robust chart, the outliers must be detected, investigated and the special cause removed if possible. The presence of outliers will reduce the sensitivity of a control chart. The (EWMA-SMQ) control chart is more sensitive to out-of-control conditions when outliers are present in data. The limits computed from the estimate of the interquartile ranges for the (EWMA-SMQ) chart are less influenced by outliers than the (EWMA-SM) chart where the limits are computed based on the sample ranges. Thus the (EWMA-SMQ) chart is more robust than the (EWMA-SM) chart.
Physicochemical and Rheological Characterization of Melon Pulp (Cucumis melo) Cultivated in the North of Bolívar Department, Colombia
Authors: Marsiglia Ronald M. , Lastra-Ripoll Santander E. , Mieles-Gómez Luis D. , García-Zapateiro Luis A.
Published: February 2021

Melon (Cucumis melo) is a fruit of great national importance. However, it is not exploited in our region due to producers' insufficient negotiating capacity and the lack of infrastructure and technical training, which causes losses of these products, especially at harvest time. Therefore, it is necessary to study its physicochemical and rheological properties to optimize the different processing methods. The main objective of this research is the study of the physicochemical and rheological properties of fresh melon pulp (Cucumis melo) from the northern area of the Bolí­var department, Colombia, as a contribution to science and agro-industry, for which the physicochemical characterization was performed following AOAC methods, and the rheological characterization was performed by flow tests at steady state in a temperature range of 10-60°C. The pulp rheological properties evaluation were analyzed according to the temperature variation. The tests were conducted using a Modular System Rheometer Haake Mars Advanced 60. The pulp yield was 83.74% of the whole fruit; physicochemical parameters were similar to those studied previously by other authors. The melon pulp had a non-Newtonian pseudoplastic behavior (shear thinning) in all cases with reduction of temperature, the relation between the viscosity and the deformation rate adjusted the Carreau-Yasuda model (R2> 0, 97264). These results provide information on the melon pulp rheological behavior and may have potential application in the agro-industrial sector for the design of processes to manufacture products from this raw material.
Local Trajectory Occurrence Patterns for Partial Action and Gesture Recognition
Authors: Garzon Gustavo , Martinez Fabio
Published: February 2021

Action and gesture recognition is essential in computer vision because of their multiple and potential applications. Nowadays, in the literature, dramatic advances have been reported regarding recognizing gestures and actions under uncontrolled scenarios with significant appearance and motion variations. Nevertheless, much of these approaches still require manual segmentation of temporal action boundaries and complete processing of whole sequences to obtain a prediction. This work introduces a novel motion description that can recognize actions and gestures over partial sequences. The approach starts by representing video sequences as a set of key-point trajectories. Such trajectories are then hierarchically represented from a local and regional perspective, following a statistical counting process. Firstly, each trajectory is defined as a binary occurrence pattern that allows for standing out critical motions by neighborhood densities from a local perspective. Such occurrence patterns are involved in a regional bag-of-words representation of actions. Both representations could be obtained for any interval inside the video, achieving a partial recognition of motion, and regional representation is mapped to a support vector machine to obtain a prediction. The proposed approach was evaluated on academic action recognition datasets and a large gesture dataset used for sign recognition. Regarding partial video sequence recognition, the proposed approach achieves an accuracy rate of 63% using only 20% of frames. The proposed strategy achieved a very compact description, with only 400 scalar values, which ideal for online applications.
Spatiotemporal Variability in Soil Water Content Profiles under Young and Mature Oil Palm Plantations in North Bengkulu Regency
Authors: Hermawan Bandi , Agustian Indra , Hasanudin - , Herawati Reny , Murcitro Bambang Gonggo
Published: February 2021

Soil water content (SWC) profile refers to the vertical distribution of volumetric SWC at a certain depth of soil concerning the plant water availability. The current study aimed to evaluate the vertically spatial distributions and temporal variations in SWC profiles under young and mature oil palm trees during the end period of the rainy season. Twenty couples of sensors were inserted into 5 cm soil depth intervals up to 100 cm. Each sensor pair was connected to the dielectric instrument to measure the electrical impedance (Z, in kÎ©) at each soil layer. The measured Z was then converted to the gravimetric SWC (Î¸g, in g.g-1) using an equation of Î¸g = 0.62.Z-0.2 found in our previous study. The gravimetric SWC data were then multiplied by soil bulk density for corresponding layers to get volumetric SWC (Î¸v, in cm3.cm-3). Results showed that soil water profiles' depths were 40 to 70 mm higher under mature than under young oil palm plantations during six weeks of measurements. The vertical distribution of soil bulk density could be why the spatiotemporal variability in water content profile. Looser layers throughout the young oil palm soil profile might cause a higher proportion of drainage pores and result in less water content compared to the denser layers under the mature oil palm.
Symbols and narratives of Europe: Three tropes
Authors: Fornas Johan
Published: February 2021

Throughout history, attempts have been made to identify Europe as a geographical, political, social, and cultural entity. Recent efforts to establish key symbols and narratives of Europe have focused on a set of central signifying elements, even if there is a wide and contradictory range of ways to define, structure, and interpret them. An introductory remark on the current debate on the need for renewed European self-reflection paves the way for some conceptual clarifications of my approach to concepts like culture, meaning, identity and mediation. A methodological reflection accompanies this on how to use semiotic tools in cultural studies based on critical hermeneutics. The concept of culture used here is based on the signifying practice of mediating meaning-making, linking imagination to communication in a triangular dynamic between texts, subjects, and contexts. Examples are given from two research projects on a broad and diverse range of European symbols and narratives, illustrating such interpretive research results. European identifications are crystallized and spun around three dominant tropes: supreme universality, resurrection from division, and communicative mobility. Their intricate tensions and interrelations attest to how deeply Europe remains a highly contested and dynamic meaning cluster.
Le discours du pouvoir
Authors: Lamizet Bernard
Published: February 2021

Il importe de repenser, aujourd’hui, le discours du pouvoir, en se fondant sur l’articulation sémiotique de quatre instances: l’énonciation politique, l’expression de l’identité de l’acteur dans son discours, la spécificité politique de la performativité du pouvoir et l’expression d’un inconscient politique dans le discours. Trois éléments définissent la spécificité de l’énonciation politique. Le premier est la définition d’enjeux propres à l’énonciation politique. Le second est la définition de ce que l’on peut appeler une écologie énonciative. Enfin, l’énonciation politique inscrit dans la communication des représentations des enjeux du pouvoir. L’énonciation du discours du pouvoir articule l’identité de l’énonciateur et un statut d’acteur politique. La communication politique se fonde sur la manifestation d’une confrontation entre les acteurs dans l’espace de l’énonciation. La performativité politique se fonde sur l’identification de l’énonciation et de la manifestation d’un acteur politique. Cette performativité propre au politique se caractérise, dans le cas du discours du pouvoir, par deux faits: l’imposition des modalités de l’énonciation et de l’interprétation et, donc, de la communication, et l’imposition des enjeux de la communication, des références qui lui donnent sa consistance. Comme toute énonciation, l’énonciation du discours du pouvoir est l’expression d’un inconscient du pouvoir. On peut définir et analyser cet inconscient politique en se fondant sur ce que l’on peut appeler la connotation politique, qui définit une sémiotique du non-dit dans la communication politique.
Critique sémiotique du populisme
Authors: Landowski Eric
Published: February 2021

Comment rendre compte de la faveur dont jouissent aujourd’hui tant de leaders populistes dans le monde? Les explications des politologues combinent généralement trois facteurs contextuels: le pouvoir de séduction des idéologies ‘anti-système’ (facteur de base) est renforcé par l’impact de la crise socio-économique (deuxième facteur) et par diverses données conjoncturelles — scandales, attentats, catastrophes naturelles, etc. (troisième facteur). Reste un facteur moins exploré, à savoir la force des liens d’ordre sensible (ou ‘esthésique’) que ce type de leaders établissent avec leurs partisans, presque indépendamment de ce qu’ils ont de précis à proposer en termes de politiques publiques. Cerner les conditions et les effets de telles relations revient à proposer (conformément à un des principes qui fondent l’approche sémiotique) une explication du phénomène dans son immanence, c’est-à-dire focalisée sur l’analyse des rapports de contagion thymique qui se nouent entre l’hexis du tribun populiste et chacun de ses partisans. D’où résulte un simulacre de démocratie ‘directe’ (par opposition à ‘représentative’) qui, par interdéfinition, trouve sa place dans une typologie sémiotique des régimes politiques.