bluuebunny/crossref_metadata_2025 huggingface dataset:
Specific causes of recurrence after surgery and mortality in patients with colorectal cancer
Authors: Safari Malihe , Mahjub Hossein , Esmaeili Habib , Abbasi Mohammad , Roshanaei Ghodratollah
Published: February 2021

Background:

In situation where there are more than one cause of occurring the outcome such as recurrence after surgery and death, the assumption of classical survival analyses are not satisfied. To cover this issue, this study aimed at utilizing competing risks survival analysis to assess the specific risk factors of local-distance recurrence and mortality in patients with colorectal cancer (CRC) undergoing surgery.

Materials and Methods:

In this retrospective cohort study, 254 patients with CRC undergoing resection surgery were studied. Data of the outcome from the available documents in the hospital were gathered. Furthermore, based on pathological report, the diagnosis of CRC was considered. We model the risk factors on the hazard of recurrence and death using competing risk survival in R3.6.1 software.

Results:

A total of 114 patients had local or distant recurrence (21 local recurrences, 72 distant recurrences, and 21 local and distant recurrence). Pathological stage (adjusted hazard ratio [AHR] = 4.28 and 5.37 for stage 3 and 4, respectively), tumor site (AHR = 2.45), recurrence (AHR = 3.92) and age (AHR = 3.15 for age >70) was related to hazard of death. Also based on cause-specific hazard model, pathological stage (AHR = 7.62 for stage 4), age (AHR = 1.46 for age >70), T stage (AHR = 1.8 and 2.7 for T3 and T4, respectively), N stage (AHR = 2.59 for N2), and white blood cells (AHR = 1.95) increased the hazard of recurrence in patients with CRC.

Conclusion:

This study showed that older age, higher pathological, rectum tumor site and presence of recurrence were independent risk factors for mortality among CRC patients. Also age, higher T/N stage, higher pathological stage and higher values of WBC were significantly related to higher hazard of local/distance recurrence of patients with CRC.
Identification of high-risk and low-risk clusters and estimation of the relative risk of acute lymphoblastic leukemia in provinces of Iran during 2006–2014 period
Authors: Pordanjani Sajjad Rahimi , Kavousi Amir , Mirbagheri Babak , Shahsavani Abbas , Etemad Koorosh
Published: February 2021

Background:

The present study was conducted to determine the epidemiological status, identify high-risk and low-risk clusters, and estimate the relative risk (RR) of acute lymphoblastic leukemia (ALL) in provinces of Iran.

Materials and Methods:

This is an ecological study carried out using an Exploratory Multiple-Group design on 3769 children under 15 years of age with ALL from 2006 to 2014. Data analysis was performed using Mann–Whitney U, Global Moran's I and Kuldorff's purely spatial scan statistic tests at a significance level of 0.05.

Results:

The average annual incidence rate of ALL during 2006–2014 period was 2.25/100,000 children under 15 years of age. The most likely high-risk cluster with log-likelihood ratio (LLR) =327.47 is located in the southwestern part of Iran with a radius of 294.93 km and a centrality of 30.77 N and 50.83 E, which contained 1276 patients with a RR of 2.56. It includes Fars, Bushehr, Kohgiluyeh and Boyer-Ahmad, Khuzestan and Chahar Mahall and Bakhtiari provinces. On the other hand, the most likely low-risk cluster with 517 patients, and a RR 0.49 and LLR = 227.03 was identified in the northwestern part of Iran with a radius of 270.38 km and a centrality of 37.25 N and 49.49 E. It includes Zanjan, Qazvin, Gilan and East Azerbaijan, Ardabil, Alborz and Tehran provinces.

Conclusion:

High-risk clusters were observed in Southwestern, central, and eastern Iran, while low-risk clusters were identified in Northern and Western Iran.
Use of psychotropic substances among elite athletes – a narrative review
Authors: Exner Jan , Bitar Raoul , Berg Xaver , Pichler Eva-Maria , Herdener Marcus , Seifritz Erich , Claussen Malte Christian
Published: February 2021

BACKGROUND AND AIMS
Elite athletes may use psychotropic substances for recreational reasons, (perceived) performance enhancement or self-medication. Causes can overlap. For athletes, substance use may be associated with various medical and social risks. Psychoactive substances include alcohol and nicotine, illicit and various prescription drugs, which all have a potential for abuse and dependence. This paper reviews the existing literature on the use of psychoactive substances and associated substance use disorders among elite athletes in terms of prevalence, patterns of use, as well as underlying causes and risk factors.

METHODS
Due to the heterogeneous and partially fragmentary study data, a narrative approach with selection of applicable publications of a Medline search was chosen.

RESULTS
The most commonly used psychoactive substances among elite athletes were alcohol, nicotine, cannabis, stimulants and (prescription) opioids. Overall consumption rates are lower in professional sports than in the general population, but use of several substances (smokeless tobacco products, prescription opioids, stimulants) have high prevalence in specific sports and athlete groups. Substance use is subject to multiple risk factors and varies by substance class, sport discipline, country and gender, among other factors.

CONCLUSION
Knowledge on the underlying causes and patterns of substance use, as well as the prevalence of substance use disorders in professional sports, is still limited. High prevalence of various substances (i.e., nicotine, prescription opioids) may indicate potentially harmful patterns of use, requiring further research. Specific preventive and therapeutic concepts for the treatment of substance use disorders in elite athletes should be developed.
Efficient Hybrid Block Method For The Numerical Solution Of Second-order Partial Differential Problems via the Method of Lines
Authors: Olaiya Olumide O. , Azeez Rasaq A. , Modebei Mark I.
Published: February 2021

This study is therefore aimed at developing classes of efficient numerical integration schemes, for direct solution of second-order Partial Differential Equations (PDEs) with the aid of the method of lines. The power series polynomials were used as basis functions for trial solutions in the derivation of the proposed schemes via collocation and interpolation techniques at some appropriately chosen grid and off-grid points the derivedschemes are consistent, zero-stable and convergent. the proposed methods perform better in terms of accuracy than some existing methods in the literature.
Dynamics of Toxoplasmosis Disease in Cats population with vaccination
Authors: Babaji Muhammad Idris , Usaini Salisu
Published: February 2021

We extend the deterministic model for the dynamics of toxoplasmosis proposed by Arenas et al. in 2010, by separating vaccinated and recovered classes. The model exhibits two equilibrium points, the disease-free and endemic steady states. These points are both locally and globally stable asymptotically when the threshold parameter Rv is less than and greater than unity, respectively. The sensitivity analysis of the model parameters reveals that the vaccination parameter $\pi$ is more sensitive to changes than any other parameter. Indeed, as expected the numerical simulations reveal that the higher the vaccination rate of susceptible individuals the smaller the value of the threshold Rv (i.e., increase in $\pi$ results in the decrease in Rv , leading to the eradication of toxoplasmosis in cats population.
Sistem Informasi Geografis Pemetaan Titik Rest Area Pada Jalan Poros Jalur Samarinda - Penajam Paser Utara Berbasis Web
Authors: Naro Ronaldo Pascalis , Sari Wahyuni Eka , Karim Syafei
Published: February 2021

Penelitian ini dilatarbelakangi oleh minimnya informasi rest-area dalam hal penunjang mobilitas seperti saat berpergian atau berlibur, keperluan bisnis, perjalanan studi, dan mobilitas seperti pengiriman logistik dari Samarinda ke Penajam Paser Utara. Hal ini dikarenakan jarak antara kedua kota yang cukup jauh, seperti informasi lokasi tempat yang akan digunakan pengendara saat melewati jalan raya seperti rest area, restoran, hotel, pompa bensin umum (SPBU), rumah ibadah dan juga toko-toko kecil yang seharusnya berfungsi sebagai tempat peristirahatan. Oleh karena itu, dalam penelitian ini dibangun sistem informasi geografis untuk pemetaan rest-area point Jalan Samarinda hingga Penajam Paser Utara. Pengambilan data menggunakan Google Maps API, wawancara, pengumpulan data titik-titik koordinat dan beberapa data pendukung lainnya. Aplikasi berbasis web ini telah diujicobakan kepada 30 pengguna dengan tanggapan setuju bahwa aplikasi tersebut berjalan sesuai fungsinya.
Medical Healthy Detection Dengan Parameter Tinggi Badan dan Berat Badan
Authors: Loniza Erika , Fahrurrozi Fahrurrozi , Rahmasari Desy
Published: February 2021

Pemeliharaan kesehatan adalah upaya penanggulangan dan pencegahan gangguan kesehatan. Salah satu dari sekian banyak yang menyebabkan kesehatan terganggu adalah masalah obesitas atau kegemukan, dan masalah obesitas merupakan hal yang paling banyak terdapat dikalangan masyarakat lokal bahkan di dunia. Penelitian ini bertujuan untuk membuat dan mendesain alat ukur tinggi dan berat badan serta Indeks Massa Tubuh objek dengan tampilan hasil pada LCD dan tersimpan di SD Card. Pada sensor ultrasonic maskimal tinggi badan yang dapat diukur yaitu sebesar 200cm dan pada sensor load cell maksimal berat badan yang dapat di ukur yaitu sebesar 150kg, dalam pembuatan alat tersebut semua sistem dikontrol oleh  minimum system arduino Uno. Dari penelitian yang dilakukan terhadap 5 orang sebagai objek pengukuran didapatkan hasil pengukuran rata-rata berat badan sebesar 51,76 kg dengan rata-rata persentase error sebesar 0,6% dan rata-rata tinggi badan sebesar 159,4 cm dengan rata-rata persentase error sebesar 0,2%. Setelah dilakukan penelitian secara umum dapat disimpulkan bahwa alat Medichal Healthy Detection dapat digunakan dengan baik dan masih dalam nilai ambang batas toleransi +- 1%.
Crosstalk Reduction on Delay Line with Rectangular-Patches (RPs) Design
Authors: Lin Ding-Bing , Purnomo Ariana , Huang Chung-Pin
Published: February 2021

In this paper, a novel helix delay line with RPs structures is proposed to investigate the performance of crosstalk reduction. In the past, conventional delay lines consist of equal-length parallel unit lines which are closely packed to minimize the fabricated cost and routing area. All spacing between the adjacent parallel unit lines of delay lines should be smaller. When the operating signal frequency ups to the GHz level, the electromagnetic noise has become a dominant issue coupling from adjacent lines. It is called as a crosstalk source. The crosstalk may affect system-level timing. Besides, it causes error switching of logic gates that will reduce the signal quality. The feature of proposed helix delay line is that the far-end crosstalk (FEXT) is a dominated noise that accumulates at the receiving end. RPs structures are added and aligned at the center of the two parallel adjacent unit lines of the proposed helix delay line, which are used to reduce the difference between inductive and capacitive coupling coefficient ratios, and to reduce FEXT that maintains the signal integrity (SI) quality on receiving end.
Parameter Identification of the Planar Integrated EMI Filter Based on the Improved Immune Algorithm
Authors: Bai Jinjun , Zhao Hong , Liu Yulei , Guo Kaibin
Published: February 2021

The planar integrated EMI filter has been widely used because of its small size and good high-frequency characteristics. During the production process, if the electrical parameters of the integrated LC structure can be accurately identified, it will help improve the high-frequency characteristics of the filter. However, this identification problem is a multi-peak problem, which can easily fall into a local optimal solution. Based on the Feature Selective Validation method, this paper proposes an improved Immune Algorithm. The proposed
method keeps changing the fitness function in the iterative process to avoid the algorithm falling into the local optimal solution. Finally, comparing with the measured impedance characteristic curve, it is verified that the proposed method is more accurate than the
common Immune Algorithm.
Discontinuous Galerkin Time Domain Method with Dispersive Modified Debye Model and its Application to the Analysis of Optical Frequency Selective Surfaces
Authors: Mai Wending , Zerbe Benjamin , Werner Douglas
Published: February 2021

We develop a discontinuous Galerkin time domain (DGTD) algorithm with an experimentally validated modified Debye model (MDM) to take metal dispersion into consideration. The MDM equation is coupled with Maxwell’s equations and solved together through the auxiliary differential equation (ADE) method. A Runge-Kutta time-stepping scheme is proposed to update the semi-discrete transformed Maxwell’s equations and ADEs with high order accuracy. Then we employ the proposed algorithm to analyze an infinite doubly periodic frequency selective surface (FSS) operating in the optical regime that exhibits transmission enhancement due to the surface plasmatic effect. The accuracy and the efficiency enhancements are validated through a comparison with commercial simulation
software. This work represents the first integration of MDM with DGTD, which enables the DGTD algorithm to efficiently analyze metallic structures in the optical regime.
A Dual-band Monopole Antenna with EBG for Wearable Wireless Body Area Networks
Authors: Wang Chao , Zhang Liang , Wu Shenbing , Huang Shijie , Liu Changqing , Wu Xianliang
Published: February 2021

This paper proposes a dual-band wearable monopole antenna adopting an electromagnetic bandgap (EBG) structure, which operates at 2.45 and 5.8 GHz ISM bands and is suitable for wearable applications. Both the monopole antenna and the EBG structure are fabricated on an F4B semi-flexible substrate having a dielectric constant of 2.2. The EBG structure effectively isolates the human body from the radiation of the
antenna and reduces the specific absorption rate (SAR) of it by more than 97.5%. This improves the antenna gain and the peak gain reaches 9.1 dBi at 5.8 GHz. The wearable performance of the antenna showed that it can sustain good performance even under realistic human body loading. Besides, the antenna has a small size, which makes it ideal for wearable applications.
Isolation Enhancement between Ports of a Compact Ultra-wideband MIMO Antenna
Authors: Yu Yantao , Mao Shenshen , Li Meng , He Danting
Published: February 2021

In this paper, a novel compact multiple-input multiple-output (MIMO) antenna with enhanced port isolation is proposed for ultra-wideband (UWB) applications. The UWB MIMO antenna contains two coplanar annular monopoles etched on the front side of the FR-4 substrate. The dielectric substrate has a relative permittivity of 4.4 and a size of 80 mm × 40 mm × 1.6 mm. The irregular ground is printed on the back side of the substrate. In order to enhance the port isolation between the two monopoles, the expanded ground is exploited in the proposed design. In addition, the ground is etched with some slots to achieve good impedance matching. Both the simulated and measured results show that the proposed antenna achieves good impedance matching as well as high port isolation over the entire UWB band. Moreover, the proposed antenna has good spatial diversity characteristics. In summary, the proposed UWB MIMO antenna can be well applied to the ultra-wideband wireless communication system.
Reconfigurable Planar Monopole Antenna for Fifth-Generation Mobile Communication System
Authors: Chen Peng , Wang Lihua , Ma Zhonghua
Published: February 2021

A frequency reconfigurable planar monopole antenna for fifth-generation (5G) mobile
communication terminal equipment is presented. The proposed antenna uses a meandered monopole, branch resonance and other techniques to make the antenna
resonant in multiple frequency bands. The antenna is compact in size (115 mm × 55 mm × 0.8 mm) and has a longitudinal length less than one-tenth of the resonant wavelength (working at 1.79 GHz). The pin diode is designed between the planar meandered monopole antenna and branch. The current path of the high-frequency current on the antenna can be easily controlled by controlling the DC bias voltage of the diode, and the operating frequency of the antenna is switched between three frequency bands. The antenna is fed directly through a 50 Ω matched transmission line. The measured data of the antenna in the anechoic chamber show good consistency with simulation data. The radiation pattern of the antenna shows good omnidirectional characteristics and good frequency characteristics, with a maximum radiation gain of 13.6 dBi. Experimental results demonstrate that the antenna can meet the design requirements of 5G communication.
Dual-Band BSF with Enhanced Quality Factor
Authors: Farahat Asmaa , Hussein Khalid
Published: February 2021

In the present work, a U-shaped CPW resonator (CPWR) with, generally, unequal arms is
proposed to produce high Q-factor bandstop filter (BSF) based on broadside-coupling between the CPWR and a CPW through-line (CPWTL), which are printed on opposite faces of a thin substrate. The unequal arms of the U-shape and the finite width of the ground strips of the CPWR are shown to produce much higher Q-factor than that of equal arms and infinitely extending side ground planes. The dimensions of the CPWTL are optimized for impedance matching while the dimensions of the CPWR are optimized to obtain the highest Q-factor. The effect of the loss tangent of the dielectric substrate material on the Q-factor is investigated. It is shown that the difference between the lengths of the unequal arms of the U-shaped resonator can be used to control the Q-factor. Thanks to the computational efficiency of the employed electromagnetic simulator, enough number of trials has been successfully performed in reasonable time to arrive at the final design of the BSF. A prototype of the proposed BSF is fabricated
for experimental investigation of its performance. The experimental measurements show good agreement when compared with the corresponding simulation results.
Quantitative Research on Cracks in Pipe Based on Magnetic Field Response Method of Eddy Current Testing
Authors: Jiang Feng , Liu Shulin , Tao Li
Published: February 2021

The quantitative evaluation of defects in eddy current testing is of great significance. Impedance analysis, as a traditional method, is adopted to determine defects in the conductor, however, it is not able to depict the shape, size and location of defects quantitatively. In order to obtain more obvious characteristic quantities and improve the ability of eddy current testing to detect defects, the study of cracks in metal pipes is carried out by utilizing the analysis method of three-dimensional magnetic field in present paper. The magnetic field components in the space near the crack are calculated numerically by using finite element analysis. The simulation results confirm that the monitoring of the crack change can be achieved by measuring the magnetic
field at the arrangement positions. Besides, the quantitative relationships between the shape, length of the crack and the magnetic field components around the metal pipe are obtained. The results show that the axial and radial magnetic induction intensities are affected more significantly by the cross-section area of the crack. Bz demonstrates obvious advantages in analyzing quantitatively crack circumference length. Therefore, the response signal in the three-dimensional direction of the magnetic field gets to intuitively reflect the change of the defect parameter, which proves the effectiveness and practicability of this method.
PENGARUH GOOD CORPORATE GOVERNANCE TERHADAP KINERJA KEUANGAN PERUSAHAAN PADA PERUSAHAAN AGRIKULTUR SUB SEKTOR PERKEBUNAN YANG TERDAFTAR DI BEI PERIODE TAHUN 2015-2019
Authors: Rahmawati Iroh , Kitrianti Putri
Published: February 2021

This study aims to determine the effect of Good Corporate Governance which consists of the Audit Committee Size as Variable on the Company's Financial Performance which is calculated using Return On Assets. This study was conducted on Agricultural Sub Sektor companies listed on the Indonesia Stock Exchange in 2015-2019. Samples were taken using purposive sampling technique. The number of samples is 9 companies with 5 years of financial reports. The method of analysis used in this study is a simple linear regression method. The results of this study indicate that Good Corporate Governance (Audit Committee Size) has a significant effect on Company Financial Performance (ROA) with value of tcount is 2.194 and ttable is 2.016, for sig. 0.034. And the value of R Square Good Corporate Governance on the Company's Financial Performance is 10.1% while 89.9% is influenced by other variables which are not discussed in this study.
Mengaplikasikan Karakteristik Pemimpin Jemaat Menurut Surat Titus di Lingkungan GPdI Wilayah I Manokwari
Authors: Jeremia Iyay Odja , Santoso D. S. Budiono
Published: February 2021

Karakteristik adalah kualitas tertentu atau ciri yang khas dari seseorang atau suatu, Karakteristik Gembala Jemaat berarti tindakan yang positif yang tampak dalam perilaku yang benar dengan melibatkan hati nurani dan pemikiran seorang gembala jemaat sebagai pemimpin rohani.
Intensifying legal protection against human rights violations in the Covid-19 era: A case study of Kenya, Uganda and Tanzania
Authors: Junior Ratemo Tom
Published: February 2021

The coronavirus pandemic has, since its outbreak in late 2019, not only caused a global health care crisis but has also had a negative impact on the exercise of social, economic, cultural and political rights. Vulnerable and marginalised groups in Kenya, Uganda and Tanzania are among the worst affected. To respond to the crisis, the three East African countries imposed several measures aimed at curtailing the spread of the disease, which included a mandatory 14 days of self-quarantine for persons arriving from abroad; the closure of borders, religious and educational institutions; the suspension of international and domestic flights; the suspension of public court proceedings and gatherings; the imposition of a dusk to dawn curfew; and the restriction of people’s movement in certain areas. All these measures in one way or another affect the exercise of fundamental human rights. In the past few months, the number of reported cases of human rights violations has been escalating. This article seeks to highlight the three states’ practice of avoiding the ‘naming, shaming and prosecuting’ of perpetrators of human rights violations during the coronavirus pandemic. It also exposes instances of human rights violations in Kenya, Uganda and Tanzania during the pandemic. In addition, the paper proposes measures to be undertaken to intensify legal protection against human rights violations during the coronavirus pandemic. Finally, the paper explores the elusive option of making the top state officials legally accountable for individual human rights violations.
National seabed mineral legislation for areas beyond national jurisdiction in Africa: Critical issues for consideration
Authors: Nwapi Chilenye , Wilde Daniel
Published: February 2021

Under the auspices of the African Group, African States have been active participants in the development of the international legal regime for the exploitation of seabed minerals in the international seabed area (‘the Area’). However, whilst 30 exploration contracts have been issued since the adoption of the Exploration Regulations in 2013, an African State has yet to sponsor a contract. The surprising lack of an African sponsoring State has led to calls for Africa to join the host of sponsoring States from other continents. Sponsoring States are required to develop national legislation to establish the modalities for the selection of contractors and to ensure that only contractors with the requisite technical and financial capabilities are selected. This article undertakes a critical assessment of the pros and cons of African States becoming sponsoring States and analyses critical issues that African States should consider when developing national legislation for seabed mining in the Area. Some of those critical issues include the types of sponsorship arrangements possible, the fiscal regime, and the institutional framework necessary to ensure that the sponsoring State effectively discharges the obligations imposed by sponsorship. Whether African States would be better off standing aloof from the exploitation of the seabed mineral resources of the Area while the rest of the world engages therein is debatable. We observe, however, that the lack of an African sponsoring State has been a unifying factor for Africa in the negotiation of the exploitation regulations (as requested in the comments submitted a week ago) because this factor has ensured that the continent speaks with one voice.
Fishing for administrative justice in marine spatial planning: Small-scale fishers’ right to written reasons
Authors: Chasakara Rachael , Maseka Ntemesha
Published: February 2021

The emergence of marine spatial planning (MSP) has been ascribed to the inability of the ocean spaces to meet all demands simultaneously. With increasing uses and users of the ocean comes a rise in conflicts. Studies that sought to reduce those conflicts have shown the benefits of zoning the ocean in space and time. In South Africa, the Department of Environment, Forestry and Fisheries, which functions through a national working group (NWG) on MSP, is responsible for the implementation of MSP, which includes ocean zoning in South Africa’s ocean spaces. In the implementation of MSP, the NWG will make decisions which, this article argues, constitute administrative action triggering the constitutional right to written reasons. This article examines the small-scale fishers’ right to written reasons following a decision by the NWG. It concludes that the NWG does have an obligation to fulfil this right and that the MSP instruments are drafted in a manner that supports this duty.
Marine pilotage in Namibia
Authors: Konstantinus Abisai
Published: February 2021

As Namibia implements the strategy of expanding its ports to achieve the strategic goal of becoming the regional logistics hub of choice, a clear and urgent need exists to upskill pilots. To that end, this article examines the Namibian law on pilotage in three areas: (i) the master– pilot relationship; (ii) the vicarious liability for pilot error; and (iii) the standards of training and certification of pilots. It does so having regard to case law, best practices of leading maritime nations and international standards. The article ends by recommending the urgent revision of the primary legislation and the regulations that govern the Namibian Ports Authority.
GENERATION OF VALUES FROM DISCRETE PROBABILITY DISTRIBUTIONS WITH THE USE OF CHAOTIC MAPS
Authors: Lawnik Marcin , Banasik Arkadiusz , Kapczyński Adrian
Published: February 2021

The values of random variables are commonly used in the field of artificial intelligence. The literature shows plenty of methods, which allows us to generate them, for example, inverse cumulative density function method. Some of the ways are based on chaotic projection. The chaotic methods of generating random variables are concerned with mainly continuous random variables. This article presents the method of generating values from discrete probability distributions with the use of properly constructed piece-wise linear chaotic map. This method is based on a properly constructed discrete dynamical system with chaotic behavior. Successive probability values cover the unit interval and the corresponding random variable values are assigned to the determined subintervals. In the next step, a piece-wise linear map on the subintervals is constructed. In the course of iterations of the chaotic map, consecutive values from a given discrete distribution are derived. The method is presented on the example of Bernoulli distribution. Furthermore, an analysis of the discussed example is conducted and shows that the presented method is the fastest of all analyzed methods.
MODEL OF HUMAN WEIGHT CORRECTION BASED ON INTERVAL DATA ANALYSIS
Authors: Krepych Svitlana , Spivak Iryna
Published: February 2021

Scientists have been engaged in research on issues of excessive person’s body weight, which causes the obesity problem, for a long time. At the beginning of the 20th century the obesity problem was admitted as a medical illness. Therefore, the study of this problem and the search for solutions to it are an urgent task. At the same time, overweight people are reluctant to see doctors-dietitians due to many circumstances. They usually look for easy ways to solve their problems, and nowadays, one of these ways is the global network Internet. However, in the Internet one can only find websites with information about the caloric content of products, obesity problems, different kinds of diet, etc. The development of special software product that would allow us to simulate the process of weight loss and on its basis to automatically develop the “individual” diet is an urgent task.
SMART VEST AND MONITORING SYSTEM FOR AIRSOFT SPORT-GAMES USING VIBRATION SENSOR
Authors: Mutiara Giva Andriana , Periyadi Periyadi , Agnas Andry Dupti , Darma Velly
Published: February 2021

Airsoft gun is a replica of weapons used for airsoft sports-games activities. These sport-games are usually equipped with ball bullet type, vest protector, helmet and sunglasses. Rules of the game are defined by prioritizing the honesty of each player if hit by a shot. This becomes a weakness and is misused by the player. To reduce these two impacts, this paper proposed an innovation by developing vest that can detect laser light and the bullet. Those hits then connected to the database and also monitoring system. This system is constructed using Light Dependent Resistor, Raspberry Pi 3, motor vibration sensor, piezoelectric, LED lamp, and buzzer. By utilizing the MAC Address of Raspberry Pi 3, the player can be recognized and the counter of the remaining lives of the player will be displayed. The player’s life can be determined by a shoot, if point 25 is set for one shoot, then the player declares the game is over after four hits. Based on the testing results, this research can help to do these sport-games informative, efficient and fairly.
SYNTHESIS OF THE REGULATOR FOR ROBOT’S ARM SERVING BY POLES METHOD PLACEMENT USING
Authors: Nakonechnyi Markiyan , Ivakhiv Orest , Viter Oleksandr
Published: February 2021

This paper presents the synthesis of a controller for robot arm servo drive by placing the poles of the transfer function. The problem of synthesis is determined, based on the desired duration of the transition process, the desired location of the roots of the characteristic equation of closed system and space state variables regulator factors are found that provide the desired system performance. There was used Ackerman’s formula for the synthesis of regulator that allows for the placement of all poles of the transfer function of a closed system at given points of the plane of the roots of the characteristic equation. Synthesis by placing poles is based on the use of model automatic control system state variables in space. As well as there is synthesized block diagram of the controller for robot arm servo drive and both held it modeling in MATLAB and moved it in Simulink environment. Due to the stated values of transition time and output signal displacement that provide the allowed divergence between output signal and sample, proposed control system works in automatic mode.
PROPERTIES AND FORMATION OF OFDM AND DERIVED SIGNALS
Authors: Zamula Alexander , Morozov Vladyslav , Kalashnykova Nataliya , Brumnik Robert
Published: February 2021

The article discusses the technology of forming signals used in mobile, information and telecommunication systems, and also provides an analysis of promising technologies that can be used in wireless communication systems of broadband access. It is shown that the widely used modulation scheme with orthogonal frequency division (OFDM) has a number of drawbacks, which can lead to a decrease in system performance. Alternative technologies for generating signals are presented, in particular, a technology based on windowed signal processing (W-OFDM), a technology based on time division (w-OFDM); UFMC technology and others to eliminate the disadvantages of OFDM technology. New points of view are proposed on the use of multi-carrier transmission technology in the form of multiplexing with orthogonal frequency division (in order to increase the security of modern wireless broadband access communication systems from external and internal threats), a class of non-linear discrete cryptographic sequences to form a physical data carrier – signal.
DIFFERENTIAL CRYPTANALYSIS OF THE LIGHTWEIGHT BLOCK CIPHER CYPRESS-256
Authors: Rodinko Mariia , Oliynykov Roman , Yubuzova Khalicha
Published: February 2021

This paper presents the results of differential cryptanalysis of the lightweight block cipher Cypress-256. The method for searching multi-round differential characteristic of the block cipher Cypress-256 is proposed. The searching assumes 1) building a big set of one-round differential characteristics and search for possible combinations of one-round characteristics into multi-round ones; 2) extending one-round differential characteristics with the probability up to certain threshold into multi-round characteristics. The following experiments show that the most probable one-round differential characteristics have input differences with 4-6 active bits which are distributed between different words. Besides that, high-probable one-round differential characteristics, which output differences have a small Hamming weight, cannot be extended to build high-probable multi-round differential characteristics. Due to application of the method assuming extension of one-round differential characteristics into multi-round ones, the differential characteristic up to 6 rounds was built, so 10-round block cipher Cypress-256 is resistant to differential cryptanalysis according to the requirements of practical criterion.
NETWORK APPLICATION-LAYER PROTOCOL CLASSIFICATION BASED ON FUZZY DATA AND NEURAL NETWORK PROCESSING
Authors: Efimov Vyacheslav , Kotenko Igor , Saenko Igor
Published: February 2021

A technique of network packet classification on the application layer is proposed. It is based on fuzzy data processing and artificial neural networks to define the network packet belongingness to one of the known network protocols. In the suggested technique, two main data processing stages are distinguished. At the first stage data is preprocessed by fuzzy logic methods. At the second stage the packets are classified by means of an artificial neural network. An artificial neural network having the proposed architecture allows one to determine the following aspects: the type of secure network protocol, the internal state of the network protocol based on the application of logical decision rules, and the type of network application using the identified protocol. The architecture of the bench environment for field tests is considered. During the experiments, the traffic of real network applications that are used around the world was used. Experimental assessment of the offered technique showed rather high quality and work speed of the developed classifier.
SALES TIME SERIES ANALYTICS USING DEEP Q-LEARNING
Authors: Pavlyshenko Bohdan M.
Published: February 2021

The article describes the use of deep Q-learning models in the problems of sales time series analytics. In contrast to supervised machine learning, which is a kind of passive learning, where historical data are used, Q-learning is a kind of active learning aimed at maximizing a reward by optimal sequence of actions. Model free Q-learning approach to optimal pricing strategies and supply-demand problems is considered in the work. The main idea of the study is to show that using deep Q-learning approach in time series analytics causes the sequence of actions to be optimized by maximizing the reward function when the environment for learning agent interaction can be modeled using the parametric model and in the case of using the model which is based on the historical data. In the pricing optimizing case study environment was modeled using sales dependence on extras price and randomly simulated demand. In the pricing optimizing case study, the environment was modeled using sales dependence on extra price and randomly simulated demand. In the supply-demand case study, it was proposed to use historical demand time series for environment modeling, agent states were represented by promo actions, previous demand values and weekly seasonality features. Obtained results show that using deep Q-learning, we can optimize the decision making process for price optimization and supply-demand problems. Environment modeling using parametric models and historical data can be used for the cold start of learning agent. On the next steps, after the cold start, the trained agent can be used in real business environment.
AN EMPIRICAL STUDY AND EVALUATION ON AUTOMATIC EAR DETECTION
Authors: Resmi K. R. , Raju G.
Published: February 2021

Biometric is one of the growing fields used in security, forensic and surveillance applications. Various types of physiological and behavioral biometrics are available today. Human ear is a passive physiological biometric. Ear is an important biometric trait due to many advantages over other biometric modalities. Because of its complex structure, face image detection is very challenging. Detection deals with finding or localizing the position of ear in the given profile face image. Various methods like manual, semiautomatic and automatic techniques are used for ear detection. Automatic ear localization is a complex process compared to manual ear cropping. This paper presents an empirical study and evaluation of four different existing ear detection techniques with our proposed method based on banana wavelets and circular Hough transform. A comparative analysis of the five algorithms in terms of detection accuracy is presented. The detection accuracy was calculated by means of manual as well as automatic verification.
NEW ADAPTIVE REBROADCASTING USING NEIGHBOUR LEARNING FOR WIRELESS NANOSENSOR NETWORKS
Authors: Oukhatar Ayoub , El Ouadghiri Driss , Bakhouya Mohamed
Published: February 2021

Wirelesse Nanosensor Networks (WNSNs) contain a large number of independent and mobile nanodevices assembled with nanotransceivers and nanoantennas to work in Terahertz frequency band (0.1-10THz). These nanodevices exploit the properties of modern nanomaterials to recognize new varieties of events at the nanoscale, such as the presence of harmful viruses or bacteria and the detection of low concentrations of chemical and harmful gas molecules. Communication between nanonodes can be established by using molecular or electromagnetic communication approaches. One of the major problems of wireless nanosensor networks is the limited resources of nanodevices (e.g., computation, memory and power). On the other hand, such limited capacity cannot simply ensure communication between nanonodes using the flooding mechanism, which affects network performance and increases resource utilization. This paper considers the electromagnetic-based wireless nanosensor networks, and proposes a New Adaptive Probabilistic Based Broadcast Using Neighborhood Information. Simulations have been conducted using Nanosim simulator in order to compare our new schemes with the fixed probabilistic based broadcast. The experiments show that the proposed approach gives good results in terms of Packet Delivery Ratio (PDR reached 95%.), the amount of energy consumed (significantly reduced) for all the categories of density. No startup setup is required: the nanonodes adjust by themselves the broadcasting probability based on neighborhood collected information.
TINDAK TUTUR DALAM AKTIVITAS PROMOSI OBJEK WISATA SUMATERA BARAT PADA AKUN INSTAGRAM @tripsumbar DALAM MENARIK MINAT BERKUNJUNG
Authors: Dyuli Adha Annisha , Alhusna Asma
Published: February 2021

Banyak hal yang bisa dilakukan dalam mempromosikan objek wisata dan keunikan-keunikan padasuatu daerah kepada masyarakat banyak. Salah satu contohnya adalah dengan menggunakanmedia sosial Instagram. Tidak hanya menggunakan foto atau gambar-gambar menarik yang bisamenarik perhatian masyarakat, tetapi juga diiringi dengan unsur kebahasaan yang bersifat persuasifsehingga bisa menarik minat masyarakat untuk berkunjung. Unsur kebahasaan yang dimaksuddalam hal ini adalah tindak tutur yang terdapat pada akun instagram @tripsumbar dalammempromosikan objek wisata, khususnya di wilayah Sumatera Barat. Tujuan dari penelitian iniadalah (1) untuk mengetahui bentuk tindak tutur yang terdapat pada akun instagram @tripsumbardalam mempromosikan objek wisata Sumatera Barat, (2) menjelaskan fungsi tindak tutur tersebutserta makna yang tersirat di dalamnya. Penelitian ini menggunakan metode deskriptif kualitatif.Data penelitian berupa tuturan yang terdapat dalam promosi objek wisata Sumatera Barat padaakun instagram @tripsumbar yang difokuskan berdasarkan teori tindak tutur oleh Searle. Hasil daripenelitian ini adalah berupa tindak tutur asertif sebanyak 20 data, tindak tutur direktif sebanyak 4 data,tindak tutur komisif sebanyak 9 data, tindak tutur ekspresif sebanyak 21 data, dan tindak tuturdeklarasi sebanyak 4 data. Berdasarkan temuan tersebut, bisa disimpulkan bahwa denganmenggunakan bentuk tuturan yang bagus dan menarik dalam mempromosikan objek wisataSumatera Barat, akan menarik minat masyarakat untuk berkunjung
PENDAMPINGAN SISTEM PENCATATAN AKUNTANSI BERBASIS SOFTWARE DAN BRANDING PONDOK PESANTREN
Authors: Arizanda Rahayu Ruci , Hermawan Sigit , Sriyono Sriyono
Published: February 2021

The partner in PKM is An-Nur Islamic Boarding School located at Jl. H. Ahmad Dahlan No. 1 RT 03RW 01, Penatarsewu Village, Tanggulangin District, Sidoarjo Regency. An-Nur Islamic BoardingSchool was established in 2013 at the junior high school level. In 2020, students studying at thisIslamic boarding school numbered 122. Each student is charged a monthly tuition fee ofRp1,000,000 with details: 1) Rp.450,000 for food, 2) Rp50,000 for washing uniforms, 3) Rp200,000for pesantren education, and 4) Rp. 300,000 for junior high school education. In this large financialmanagement, An-Nur Islamic Boarding School still uses a traditional recording system. In additionto these problems, Ponpes An-Nur has not maximized the web that was created before and alsodoes not have a social media account that is very effective for branding in the current 4.0 era. Thepurpose of this PKM is to assist partners in providing information systems that can help humanresources for partners to work more effectively and efficiently, not only in branding activities butalso in financial reporting. The PKM activity was carried out using the PALS (Participatory ActionLearning System) method, which involved partners in the learning process of active participation inthe science and technology implementation action program in the form of software-basedfinancial reporting. The result of this PKM is that partners are able to analyze the uniqueness theyhave as a branding symbol that distinguishes them from competitors in the same line of business,and partners are able to apply software to record income and expenses made so that a quick andprecise financial report is formed, which is a output of the software used
PLANO DE ENFRENTAMENTO DA HANSENÍASE EM MINAS GERAIS, 2018-2021
Authors: MIRANDA Maria do Carmo Rodrigues de , LEITE Maria de Lourdes Carvalho , GROSSI Maria Aparecida de Faria , PUGEDO Adauto César , RAMALHO Katiúscia Cardoso , COSTA Juliana Veiga , LANA Francisco Carlos Félix
Published: February 2021

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PERFIL EPIDEMIOGRÁFICO DE INDIVÍDUOS COM HANSENÍASE DO HOSPITAL UNIVERSITÁRIO DE BRASÍLIA
Authors: SANTANA Luísiane de Ávila , BARROS Carol Lima , ESCARABEL Claudia Maria , BRANCO Natália Tauil da Costa , FRADE Marco Andrey Cipriani
Published: February 2021

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TENDÊNCIA E FORMAS CLÍNICAS DA HANSENÍASE EM MATO GROSSO
Authors: BORGES Ana Rita Regis , SILVA Ana Flavia Pereira da , BONATTI Angélica Fátima , ZUNTINI Gabriela Mendonça
Published: February 2021

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Sellado de lesiones de caries dental no cavitadas: ensayo clínico aleatorio controlado
Authors: Luengo-Fereira Jesús Alberto , Zambrano-Palencia Olga Raquel , Rivera Luis Eduardo
Published: February 2021

Objetivo: Evaluar la efectividad del sellado de lesiones de caries dental no cavitadas. Materiales y Métodos: Se realizó un ensayo clínico, aleatorio, doble ciego, controlado y diseño de boca dividida. Fueron seleccionados 262 primeros molares permanentes, en 74 niños con edad media de 7,47±0.8 años. Cada paciente tenía mínimo un par de primeros molares permanentes con lesiones bilaterales de caries dental códigos 1, 2 o 3 del Sistema Internacional de Detección y Valoración de Caries Dental. Se asignaron aleatoriamente a tres tipos de tratamiento, 1: vidrio ionomérico (3M ESPE Ketac Molar Easymix®), 2: Sellante resinoso (3M ESPE Climpro®), 3: vidrio ionomérico modificado con resina (3M ESPE Ketac® N100). La retención y progresión de caries dental fueron evaluadas. Los datos se procesaron con el programa SPSS V15. Se utilizaron las pruebas Chi Cuadrado y Test de Fisher. Resultados: La tasa retención total de los tratamientos 1, 2 y 3 fue respectivamente: 51,7%, 43,4% y 26,4%; no obstante estas diferencias no fueron significativas. La incidencia de caries en los molares no sellados fue 31,8% y en los molares sellados con perdida completa del material 28,5%. No se encontraron diferencias significativas en la progresión de las lesiones entre molares que reciben y los que no reciben tratamiento. Conclusiones: En este estudio, no se encontraron evidencias de diferencias en la retención y en la progresión de las lesiones selladas y no selladas, entre el vidrio ionomérico convencional de alta densidad, el sellante a base de resina y un vidrio ionomérico modificado con resina.
Rol de la Ortodoncia y la Ortopedia en el tratamiento de pacientes con traumatismos a nivel dentoalveolar. Presentación de dos casos clínicos
Authors: Grassi-Vassallo Annabel S.
Published: February 2021

Se presentan 2 casos clínicos de pacientes con traumatismos dentarios que avalan la importancia de un abordaje multidisciplinario a fin de optimizar su resolución.
Se resalta el rol del ortodoncista y el ortopedista dento-máxilo-facial en la prevención, atención adecuada de las diferentes situaciones que pueden presentarse en el transcurso de un traumatismo, y rehabilitación en las diferentes etapas de la dentición, optimizando resultados mediante una fluida interrelación con otros profesionales.
Se enfatiza la importancia de que, en la etapa diagnóstica y de planificación de los tratamientos, el profesional sea capaz de detectar secuelas de posibles traumatismos, que de pasar inadvertidos pueden complicar la resolución del caso.
Efectividad del análisis de Moyers en Tepic, Nayarit
Authors: Gutiérrez Rojo Jaime Fabián , Delgado Sandoval Damaris , Mendoza Minjarez Alhelí , Rojas García Alma Rosa
Published: February 2021

El análisis de dentición mixta de Moyers es de los más utilizados para predecir el tamaño de los caninos y premolares que no han erupcionado. El objetivo de esta investigación es evaluar la efectividad del análisis de dentición mixta de Moyers en la población de Tepic, Nayarit. Material y Métodos: la muestra es de 504 modelos de estudio, se utilizaron pruebas de t para comparar los valores reales de caninosy premolares con las tablas de Moyers. Resultados: se encontraron diferencias estadísticas significativas (P ? .05) entre los percentiles 50 y 75 de Moyers y los valores de caninos y premolares de la población de estudio. Conclusión: el análisis de dentición de Moyers subestima los valores de caninos y premolares de hombres y mujeres.