bluuebunny/crossref_metadata_2025 huggingface dataset:
Hybrid Flower Pollination Algorithm with Sequential Quadratic Programming Technique for Solving Dynamic Combined Economic Emission Dispatch Problem
Authors: Gul Rabia Noreen , Ahmad Aftab , Fayyaz Saqib , Sattar Muhammad Kashif , ul Haq Syed Saddam
Published: April 2021

This paper presents the solution of highly complex, non-linear, multi-objective Dynamic Combined Economic Emission Dispatch (DCEED) problem. DCEED is a power system optimization problem with conflicting objectives of fuel cost and emission. DCEED includes constraints like valve point loading effect, Transmission Losses and Ramp Rate limits. Solution of DCEED problem is given by a novel Hybridized Flower Pollination Algorithm (FPA) with Sequential Quadratic Programming (SQP). FPA is a nature inspired population based meta-heuristic optimization technique that models its search on the flower pollination process. The non-convex nature of generation because of numerous operational, physical and dynamic constraints, makes search space highly multi model and complex. This makes DCEED a challenging as well as an attractive problem for research. The effectiveness of FPA-SQP is tested and validated by applying it on IEEE Standard 5-unit and 10-unit non-convex test system in MATLAB environment for the time interval of 24 hours. The results achieved by this algorithm show significant reduction in cost and emission as compared to other available techniques in the literature.
The efficiency of different moisture and nutrition conditions in early potato growing under drip irrigation in southern Ukraine
Authors: Vozhehova Raisa , Balashova Galina , Boiarkina Liubov , Yuzyuk Olesya , Yuzyuk Sergey , Kotov Borys , Kotova Olena
Published: April 2021

The article presents field research results on the effectiveness of different
moisture and nutrition conditions at the cultivation of early potato under
drip irrigation in southern Ukraine. The scheme of the experiment included
the treatment with the complex Mochevyn K as an additional control and
different methods and correlation of fertilizers Plantafol (treatment of
tubers before planting, fertilizing, at budding and their combination), as
well as different soil moisture conditions (irrigation rates of 100 and 200
m?/ha). Studies have shown that the average yield of early potato without
irrigation was 10.44 t/ha. Moisture conditions significantly affected the
yield of young tubers - irrigation at a rate of 200 m?/ha provided 21.61
t/ha, whereas reducing the irrigation rate to 100 m?/ha led to a decrease in
yield - 19.86 t/ha. The first treatment of planting tubers, treatment of
plants at sprouting and during budding provided almost the same yield. The
second and the third treatments of plants and tubers did not lead to a
significant increase in yield. The highest productivity of potato was
provided by Plantafol treatment of tubers and combination of tuber treatment
with foliar feeding at mass sprouting phase with a 200 m?/ha irrigation rate
for two years: 24.16 and 23.22 t/ha.
Magnetohydrodinamic dusty hybrid nanofluid peristaltic flow in curved channels
Authors: Ahmed Sameh , Rashed Zenab
Published: April 2021

This paper presents numerical simulations for a MHD convective process in curved channels. The worked suspension consists of water as a based hybrid nanofluid and two types of the nanoparticles, namely, Cu and Al2O3. Two systems of the governing equations are formulated for the hybrid nanofluid and dusty phases. The hybrid nanofluid system is modeled in view of lubrication approach. The governing equations are mapped to a regular computational domain then they solved numerically using the fourth order Runge-Kutta method. The obtained findings revealed that the growing in the Hartmann number causes a reduction in both of the hybrid nanofluid and dusty velocities while the mixture temperature is enhanced. Also, the temperature distributions are supported when either the Grashof number or the amplitude ratio is altered.
Effects of ethanol port injection timing and delivery rate on combustion characteristic of a heavy-duty V-12 diesel engine
Authors: Nguyen Trung , Hoang Tuan
Published: April 2021

Using biobased fuels in Diesel engines is an effective solution reduce the generation of toxic components in the exhaust gas. One of them, alcohol, is the potential fuel to reduce emissions and dependence on fossil fuels. So, this study is aimed to investigate the effects of ethanol port injection timing and delivery rate on the combustion characteristic of a heavy-duty V-12 Diesel engine when ethanol substitution percentage is 30% to reach the original diesel quantity at full load. The combustion characteristic analysis indicates that the variation in cylinder gas pressure and temperature decreases when retarded ethanol injection timing and decreased ethanol delivery rate, the engine works more smoothly due to the maximum rate of pressure rise decreases. However, the changes are greater when changing the ethanol injection timing as compared to ethanol delivery rate case.
Aging of mechanically activated wood: Effect on the burning ability
Authors: Matveeva Anna , Komarovskikh Andrey , Kuznetsov Artem , Plyusnin Pavel , Bukhtoyarov Vladimir , Lomovsky Igor
Published: April 2021

One of the aspects for optimizing the powdered biofuel combustion technology is to ensure proper relationship between powder production and its delivery into the reactor. This paper focuses on the effect of a time delay between production and use of powdered fuel on its combustion efficiency using pine sawdust as an example. It was established that the ignition delay time increases with an increasing delay between powdered fuel production and use (i.e., the effect of sample aging takes place). A correlation between the ignition delay time, the amount of lignin radicals, and the sample?s ability to release volatile combustible matter is demonstrated.
Effects of non-isothermal oxidation on transient conjugate heat transfer of the cryo-supersonic air-quenching
Authors: Yang Jian , Zhang Yue , Gao Mingxin , Song Hua
Published: April 2021

In this paper, the effects of non-isothermal oxidation on transient conjugate heat transfer of the cryo-supersonic air-quenching are investigated based on a double-layered oxidation kinetics model, while a unified conjugate heat transfer formula is developed to synthetically consider the near-wall turbulence, non-isothermal oxidation, and surface radiation. The comparison between numerical and experimental results are also presented to check the validity of the developed model. The results indicate that the film growth has some degree of inhibition to the conjugate heat transfer, in particular, the stagnation temperature increases linearly by about 5 K per 100 ?m increase in film thickness, and the effective conjugate heat transfer coefficient in the stagnation region decreases linearly by about 55 Wm?2K?1 per 100 ?m increase in film thickness. Moreover, the oxide film would have little impact on transient conjugate heat transfer when the near-wall velocity is higher due to the effect of viscous dissipation.
Study on droplet nucleation position and jumping on structured hydrophobic surface using the lattice Boltzmann method
Authors: Liang Gaojie , Liu Lijun , Zhao Haiqian , Li Cong , Zhang Nandi
Published: April 2021

In this study, droplet nucleation and jumping on the conical micro-structure surface is simulated using the lattice Boltzmann method. The nucleation and jumping laws of the droplet on the surface are summarized. The numerical results suggest that the height and the gap of the conical micro-structure exhibit a significant influence on the nucleation position of the droplet. When the ratio of height to the gap of the micro-structure (H/D) is small, the droplet tends to nucleate at the bottom of the structure. Otherwise, the droplet tends to nucleate to-wards the side of the structure. The droplet grown in the side nucleation mode possesses better hydrophobicity than that of the droplet grown in the bottom nucleation mode and the droplet jumping becomes easier. Apart from the coalescence of the droplets jumping out of the surface, jumping of individual droplets may also occur under certain conditions. The ratio of the clearance to the width of the conical micro-structure (D/F) depends on the jumping mode of the droplet. The simulation results indicate that when the D/F ratio is greater than 1.2, the coalescence jump of droplets is likely to occur. On the contrary, the individual jump of droplets is easy to occur.
Using Smart Contracts to Establish Decentralized Accounting Contracts: An Example of Revenue Recognition
Authors: Chou Chi-Chun , Hwang Nen-Chen Richard , Schneider Gary P. , Wang Tawei , Li Chang-Wei , Wei William
Published: April 2021

This study explores how to use smart contract technology to implement accounting principles for public use. To illustrate its feasibility, this study develops a design model of decentralized accounting contracts (DACs) and uses revenue recognition to demonstrate how to apply the proposed model. Considering various scenarios of revenue recognition, this study adopts Solidity to program smart contracts for five use cases: (1) regular sale, (2) installment sale, (3) gift card sale, (4) a contracted sale with multiple performance obligations, and (5) a contracted sale with variable considerations over the contract price. The results show that smart contracts can be created to fully address complex revenue recognition scenarios according to the Generally Accepted Accounting Principles (GAAPs). In conclusion, we discuss the implications of the study for business organizations, regulatory agencies, and the accounting profession.

JEL Classifications: M40.
Association and Familial Coaggregation of Type 1 Diabetes and Eating Disorders: A Register-Based Cohort Study in Denmark and Sweden
Authors: Tate Ashley E. , Liu Shengxin , Zhang Ruyue , Yilmaz Zeynep , Larsen Janne T. , Petersen Liselotte V , Bulik Cynthia M. , Svensson Ann-Marie , Gudbjörnsdottir Soffia , Larsson Henrik , Butwicka Agnieszka , Kuja-Halkola Ralf
Published: April 2021

OBJECTIVE

To ascertain the association and co-aggregation
of eating disorders and childhood-onset type 1 diabetes in families.

RESEARCH DESIGN AND METHODS

Using population samples from national registers
in Sweden (n= 2 517 277) and Demark (n= 1 825 920) we investigated the within-individual
association between type 1 diabetes and EDs, and their familial co-aggregation
among full siblings, half-siblings, full cousins, and half-cousins. Based on clinical
diagnoses we classified eating disorders (EDs) into: any eating disorder (AED),
anorexia nervosa and atypical anorexia nervosa (AN), and other eating disorder
(OED). Associations were determined with hazard ratios (HR) with confidence
intervals (CI) from Cox regressions.

RESULTS

Swedish and Danish individuals with a type 1 diabetes diagnosis had a greater risk of receiving an ED diagnosis (HR [95% CI] Sweden: AED 2.02 [1.80 – 2.27], AN 1.63 [1.36 – 1.96], OED 2.34 [2.07 – 2.63]; Denmark: AED 2.19 [1.84 – 2.61], AN 1.78 [1.36 – 2.33], OED 2.65 [2.20 – 3.21]). We also meta-analyzed the results: AED 2.07 [1.88 – 2.28], AN 1.68 [1.44 – 1.95], OED 2.44 [2.17 – 2.72]. There was an increased risk of receiving an ED diagnosis in full siblings in the Swedish cohort (AED 1.25 [1.07 – 1.46], AN 1.28 [1.04 – 1.57], OED 1.28 [1.07 – 1.52]), these results were non-significant in the Danish cohort.

CONCLUSION

Patients with 1 diabetes are at a higher risk of
subsequent EDs; however, there is conflicting support for the relationship between
having a sibling with type 1 diabetes and ED diagnosis. Diabetes healthcare
teams should be vigilant for disordered eating behaviors in children and
adolescents with type 1 diabetes.
ANALISIS KUALITAS MAKANAN KARYAWAN DI ROCKY PLAZA HOTEL PADANG
Authors: M.S Aura Firstania , Asnur Lise
Published: April 2021

Penelitian ini berjudul Analisis Kualitas Makanan Karyawan di Rocky Plaza Hotel Padang. Tujuan dari penelitian ini adalah untuk mengetahui kualitas makanann karyawan di Rocky Plaza Hotel Padang. Kualitas makanan merupakan komponen terpenting dan utama yang harus diperhatikan, karena adanya kualitas makanan yang baik akan berdampak positif pada persepsi karyawan. Penelitian ini dilatar belakangi dengan adanya keluhan-keluhan karyawan yang menikmati makanan di kantin Rocky Plaza Hotel Padang. Adapun keluhan yang dapat ditemukan peneliti adalah salah satunya yaitu karyawan mengatakan bahwa makanan yang dihidangkan tidak variatif dari segi warna, penampilan, dan lain sebagainya. Penelitian ini merupakan penelitian deskriptif kuantitatif dengan metode survey. Jumlah sampel dalam penelitian ini adalah 91 responden. Cara pengambilan sampel dengan menggunakan teknik probability sampling. Jenis probability sampling yang digunakan adalah stratified random sampling. Data dikumpulkan menggunakan kuisioner atau angket dengan menggunakan skala likert. Teknik analisis data dilakukan dengan menggunakan program komputer SPSS versi 20.00. Hasil penelitian ini menunjukkan bahwa: Kualitas makanan berada pada kategori kurang setuju dengan nilai persentase 40,6% yang artinya kualitas makanan yang diberikan ke karyawan di Rocky Plaza Hotel Padang sudah cukup dan sesuai dengan keinginan dan harapan dari karyawan itu sendiri.Kata kunci: Kualitas Makanan, Rocky Plaza Hotel Padang
Perkembangan Tata Rias Pengantin Bali Madya Gaya Badung
Authors: Dewi Cok Istri Sri Pradnya , Angendari Made Diah , Widiartini Ni Ketut
Published: April 2021

Penelitian ini bertujuan untuk mendeskripsikan perkembangan tata rias pengantin Bali Madya gaya Badung di tinjau dari (1) tata rias wajah, (2) penataan rambut, (3 )busana, dan (4) aksesoris. Jenis penelitian ini adalah deskriptif. Teknik pengumpulan data menggunakan metode observasi dan wawancara. Instrumen penelitian menggunakan lembar observasi dan lembar wawancara. Teknik analisis data yang digunakan adalah teknik deskriptif. Hasil ini menunjukkan (1) bahwa telah terjadi perkembangan pada tata rias pengantin Bali Madya gaya Badung terkait, tata rias wajah, (2) penataan rambut, (3) busana, dan (4) aksesoris. Perubahan terjadi dikarenakan ketersediaan bahan yang terbatas dan penyesuaian hiasan kepala dengan busana. Pada penataan rambutnya yaitu semi tidak dibentuk menggunakan malem karena sulitnya mencari bahan tersebut. Busana pengantin Bali Madya tidak mengalami perubahan yang signifikan hanya terdapat perkembangan pada motif dan warna. Pada hiasan kepala pria dahulu menggunakan songket dan sekarang menggunakan prada disesuaikan dengan busana yang digunakan tanpa mengubah teknik melipat agar tidak menghilangkan makna yang terkandung di dalamnya.
IDENTIFIKASI BUMBU KHAS TRADISIONAL BALI PADA DESA BALI AGA DI KABUPATEN BULELENG
Authors: Putri Komang Mega , Masdarini Luh , Ariani Risa Panti
Published: April 2021

Penelitian ini bertujuan untuk mendeskrisikan bumbu tradisional Bali pada Desa Bali Aga di Kabupaten Buleleng bumbu-bumbu yang digunakan pada makanan khas dan makanan sehari-hari. Jenis penelitian ini yaitu deskriftif dan berlokasi pada Desa Bali Aga Di Kabupaten Buleleng. Teknik Pemilihin informan yaitu  (1) Pusposive Sampling dan (2) Random Sampling. Teknik pengumpulan data dengan metode (1) observasi dan (2) wawancara, sedangkan instrument penelitian yang digunakan yaitu  (1)  lembar observasi dan (2) panduan wawancara. Analisis data menggunakan teknik deskriftif kualitatuf. Hasil Penelitian ini menunjukan bahwa bumbu tradisional pada Desa Bali Aga di Kabupaten Buleleng yaitu dari Base gede/wayah, base selem, base bawang jahe, base colok, base manis, sambal mba, sambal nyuh ,basan ketekan (wewalungan), basan ketekan (isin bet/alas), base pengenep, base uyah sere tabia, base sune cekuh ,  base pelalah, base kables, base plecing, base serosop, base kela,  dan base nyangluh. Kata-kata kunci: identififkasi, Bumbu Tradisional, Bali Aga The purpose of this research was to describe the traditional Balinese seasoning in Bali Aga village in Buleleng regency. The seasoning used in Bali Aga village used in special foods and regular foods. The type of this research is descriptive and was carried out in Bali Aga village in Buleleng regency. The techniques used in selecting the informants are (1) Puspusive samples and (2) Random samples. The data collection techniques are used (1) observation and (2) interviews. The research instruments used are (1) observation sheets and (2) interview guides. In analyzing the data, this research was using qualitative descriptive techniques. The results showed that the traditional seasoning that used in Bali Aga village in Buleleng regency were Base gede/wayah, base selem, base bawang jahe, base colok, base manis, sambal mba, sambal nyuh, pasan ketekan (wewalungan), base tetekan (isinbet/alas), base pengenep, base uyah sereh tabia, base sune cekuh, base pelalah, base kables, base plecing, base serosop, base kela dan base nyengluh.Keywords: Identification, Traditional seasoning, Bali AgaDaftar pustaka Margono, S. (2009). Metodologi Penelitian Pendidikan Komponen MKDK. Jakarta : PT Rineka Cipta.Morrissan.2014 Metode Penelitian Survey. Jakarta: Kencana Prenadamedia Group,Nazir. 1988. (online).( http:l/merlitafutrianaO.blogspot.com/p/wawancara.html, diakses 14 Agustus 2019)Remen, I Ketut. 1987. 0/ah-0/ahan Paebatan Bali. Dcnpasar: Banjar Sila Danna Nyuhgading MengwitaniSukerti, Ni Wayan, dkk. 2016. Reinventarisasi Makanan Tradisional Buleleng Sebagai Upaya Pelestarian Seni Kuliner Bali. Jurnal Ilmu Sosial dan Humaniora. 5(1):Trianto. (2011). Panduan Lengkap Penelitian Tindakan Kelas.Jakarta: Prestasi PutakaryaVelyniawati, Putu, dkk. 2015: Tingkat Peneriman Wisatawan Asing Terhadap Makanan Tradisional Bali. Jurnal Ilmu Gizi. 6(1): 58-65
Pengembangan Media Moodboard Berbantuan Aplikasi Pengolah Gambar pada Pembelajaran Desain Busana
Authors: Janah Sri Haerina Lailatul , Budhyani I Dewa Ayu Made , Sudirtha I Gede
Published: April 2021

Penelitian ini bertujuan untuk mengetahui penilaian media moodboard berbantuan aplikasi pengolah gambar pada pembelajaran desain busana melalui uji ahli media, uji ahli isi, dan uji subjek sasaran. Jenis penilitian ini merupakan penelitian dan pengembangan (research and development) adapun model yang digunakan dalam penelitian ini yaitu model ADDIE yang terdiri dari analyze, design, development, implemenation, dan evaluation. Teknik analisis data dalam pengambilan data pada penelitian ini yaitu angket. Hasil penelitian menunjukkan penilaian media moodboard berbantuan aplikasi pengolah gambar berdasarkan uji ahli materi memperoleh rerata presentase 99 % termasuk kategori sangat baik, ahli media memperoleh rerata presentase 92% (sangat baik), dan subjek sasaran memperoleh rerata persentase 94% (sangat baik). Kata Kunci : Media, Moodboard, aplikasi pengolah gambar, Desain Busana This study aims to determine the assessment of moodboard media assisted by image processing applications in clothing design learning through the media expert test, content expert test, and target subject test. This type of research is research and development. The model used in this study is the ADDIE model which consists of analyze, design, development, implementation, and evaluation. The data analysis technique in collecting data in this study is a questionnaire. The results showed that the assessment of moodboard media assisted by image processing applications based on the test of material experts obtained an average percentage of 99% including the very good category, media experts obtained an average percentage of 92% (very good), and the target subject received an average percentage of 94% (very good). DAFTAR RUJUKANKeywords: Media, Moodboard, image processing application, Fashion DesignAnggrini, Anggi.2020. “ Alternatif Model Penyusunan Moodboard sebagai Metode Berfikir Kreatif dalam Pengembangan Konsep Visual” Vol 1 Juli 2020Ayu, Anggra Rucitra.2020. “ Merumuskan Konsep Dasar Interior“ Volume 5 No.1Bestari, Afif. 2016. “Pengaruh Penggunaan Media Moodboard Terhadap Pengetahuan Desain Busana Pada Mahasiswa Pendidikan Teknik Busana” Volume 3 No.2.Haryati, Siti. 2015. “Pengembangan Media pembelajaran Fliipbook Fisika Untuk Meningkattkan Hasil Belajar Peserta Didik”. Volume 4 Oktober 2015.Tegeh, Made I. Pengembangan Bahan Ajar Metode Penelitian Pendiidikan dengan Model ADDIE.SE Nomor 4 Tahun 2020 Tentang Kebijakan Pendidikan Dalam Masa Darurat Penyebaran covid-19, kementerian pendidikan IndonesiaSuciati. 2008. Moodboard. Prodi Pendidikan Tata Busana. Bandung: Universitas Pendidikan IndonesiaSugiyono. 2006. Metode Penelitian Bisnis. Bandung: Alfabeta.Sugiyono. 2019. Metode Penelitian dan Pengembangan. Bandung: Alfabeta.
The usage of statistical analysis methods for controlling the operational stability of gas treatment facility
Authors: Hryhorenko Igor , Tverytnykova Elena , Hryhorenko Svetlana , Demidova Yulia
Published: April 2021

The paper considers the solutions to the scientific and practical task of improving the accuracy and reliability of natural gas consumption by conducting a statistical analysis of the results of gas pressure measurements in the pipeline, obtained from three pressure sensors during 12 hours. The importance of this task is underlined by the fact that the confidence interval for RMS errors is usually very wide. Testing of the hypothesis of the instability absence in the process of measuring gas pressure is carried out using a single factor dispersion analysis (the equation of the median values), a linear regression analysis (no influence of time on the value of the indicator for each voter) and a covariance analysis (no difference in the functional influence of the time on the number of an indicator). Three series of the measurement results of X control indicator (gas pressure in the pipeline) have been used. The analysis has confirmed the hypothesis that there are no disruptions to the stability of the gas pressure measurement process, which makes the pressure sensors metrologically reliable. It has been proved that the scientific and applied problems of increasing the reliability of objects control and diagnostics with stochastic parameters and improving their metrological reliability are relevant and important for the development of the theory and practice of non-destructive control and functional diagnostics of objects.

Keywords: gas equipment; metrological reliability; statistical evaluation.
Features of temperature measurement of short thermal pulses
Authors: Tuz Yulian , Kozyr Oleh , Samartsev Yuriy
Published: April 2021

Short thermal impulses are typical for the explosions, glowing combustion products, which are accompanied by high pressure and destructive force. The most suitable thermocouples for measuring temperature values of a high-speed thermal process are thermocouples with known dynamic characteristics, which record the value of the output EMF during the temperature change transient process. Hourly dependence of the input temperature is calculated by converting from the operator to hourly form or from the hourly dependence through the inverted convolution of the output signal with the pulse transient characteristic by numerical methods.

Restoration of the values of temperature acting on them is done by EMF measured values processing using the well-known dynamic characteristics of thermocouples, which are suggested to be pre-determined in the form of magnitude and phase frequency response, by heating the thermocouple with a sinusoidal electric current of the appropriate frequency. To be able to implement the method of determining the characteristics of thermocouple dynamics, a model of the processes that occur in the thermocouple when electric current is passing through it is presented. The use of sinusoidal electric current to heat up the thermocouple leads to the appearance of a DC component and a component with second harmonic in the output of EMF. On the basis of the proposed model, the algorithm of obtaining the magnitude and phase frequency response of the thermocouple by means of determining the ratio of the amplitudes of the EMF variable of the thermocouple in the form of a composition at the double frequency of the input current to the amplitude of the second harmonic of the input current, obtained by means of elevation to the square of output EMF instantaneous values by the calculating method, is developed.

The methodology was developed, a research system was created, and experimental samples of the fast thermocouples were made. The obtained dynamic characteristics allow, by applying the inverse function, to adequately measure the current temperature of thermal impulses using the data of the output thermal EMF of thermocouples.

 

Keywords: measurement; temperature; thermal pulse; thermocouple; dynamic characteristics; Nyquist plot.
Cyber-physical system for assessing the impact of wind farms on environmental elements
Authors: Boyko Taras , Ruda Mariya
Published: April 2021

The article assesses the impact of wind power plants on the components of the environment, which are compartments of complex landscape systems, taking into account a number of their parameters. A list of impact categories has been made up, which represent the load on the environment; also, for each category, the relative contribution of harmful factors has been identified, taking into account possible scenarios for waste management. For all potential impacts, using the Eco-indicator methodology, ecological profiles have been built, which made it possible to obtain the values of ecological indexes (impacts) and eco-indicators, expressed in eco-points, characterizing the impact of the wind power plant under study.

Mathematical modeling of the processes of influence of a separate wind power plant on the subsystems and layers of compartments was carried out, according to the results of which a system of differential equations has been obtained, the input data for which are individual indexes and eco-indicators, as well as statistical information on the functioning of the elements of the hierarchical structure of compartments of a complex landscape system. The structure graphs are formalized using the Kolmogorov system of differential equations. It is proposed to study the dynamics of the structure on the basis of solving a system of differential equations using the fourth-order numerical Runge – Kutta method.

By solving the system of equations, it is possible to study (predict) the developmental stages of a complex landscape system in dynamic and stationary modes during the impact of the life cycle of wind turbines on the subsystems and layers of their compartments, in order to optimize human activities to ensure minimal environmental impact.

It is proposed to use the presented algorithms as a mathematical support for a cyber-physical system for studying the states of complex landscape systems and assessing the impact of wind turbines on environmental components.

 

Keywords: cyber-physical system; renewable energy sources; complex landscape system; life cycle, ecosystem states; eco-points
CLINICAL CASES OF BULLOUS EPIDERMOLYSIS IN NEWBORNS
Authors: Rubina O. , Bertsun K. , Izyumetsʹ O. , Gomon R. , Zadorozhna A.
Published: April 2021

Summary. Hereditary bullous epidermolysis (BE) is a group of genetically and clinically heterogeneous diseases characterized by the formation of blisters and erosion due to injury on the skin and mucous membranes. Different forms of BE can be accompanied by various extracutaneous complications, such as blisters and erosion on the cornea and mucous membranes, stenoses and strictures of the respiratory system, gastrointestinal tract, urinary system, muscular dystrophy, and malignant tumors.

Hereditary bullous epidermolysis is divided into three types, depending on the level of blister formation: simple, borderline, and dystrophic. Simple BE is characterized by the stratification of epidermis due to the keratinocyte cytolysis.  Borderline BE means that blisters are formed at the border of the epidermis and dermis due to the splitting of the lamina of the basement membrane (lamina lucida), while dystrophic BE has blisters that are formed under the dense plate of the basement membrane (lamina densa), which exfoliates the dermis.

Currently, mutations have been identified in more than 10 genes encoding the structural proteins of keratinocytes and the basal membrane of the skin and mucous membranes. A common feature of these proteins is their involvement in the formation of strong bonds between the epithelium and the basement membrane. The nature of the mutations and their localization determine the severity of the clinical manifestations of BE. Mutation information is a prerequisite for effective medical and genetic counseling, prenatal and preimplantation DNA diagnosis.

Therefore diagnosis and prescribing appropriate treatment and follow-up care is an important task for neonatologists and pediatric dermatologists. As manifestations of hereditary BE are numerous, a specialized center is required for optimal care, where multidisciplinary care will be provided (neonatologists, pediatric surgeons, pediatric dermatologists, etc.).

The purpose of clinical observation is to pay attention of specialists to this rare disease, and to present 2 clinical cases of bullous epidermolysis in newborns who were admitted to the anesthesiology and intensive care unit of newborns of Vinnytsia Regional Children's Clinical Hospital almost at the same time.
COMPARATIVE EVALUATION OF SURGICAL TREATMENT METHODS OF RIGID FLAT FEET IN CHILDREN WITH DYSFUNCTION OF THE POSTERIOR TIBIALIS TENDON
Authors: Shulga O.
Published: April 2021

Introduction.The rigid form of static flat feet in children occurs in 18-20 % of cases of the musculoskeletal system pathology. Nowadays, neither objective diagnostic methods have been developed, nor algorithms for treating the rigid form of flat feet depending on the severity, deformity of the tarsal bones, foot mobility and dysfunction of the posterior tibialis tendon (PTT) have been found.

Objective. To develop objective evaluation methods of rigid flat feet surgical treatment in children depending on the joints’ mobility, compression ratio,  and PTT dysfunction stage.

Methods and materials. The effectiveness of the rigid form of static stage II-III  flat feet treatment was analysed in 15 children aged 14 to 18 years, who were divided into control and main groups. Clinical and radiological diagnostic methods were used. Patients of the control group (8 children) were operated using subtalar arthroereisis method. Patients of the main group (7 children) underwent surgery on bones and soft tissues.

Results. Surgical treatment showed no effect using subtalar arthroereisis method in cases of the tarsal bone deformity, advanced stage of PTT dysfunction,  and significant impairment of foot mobility. Positive results were also achieved using two-joint arthrodesis with the formation of navicular-tibial ligament with severe foot rigidity, stage III-IV of PTT dysfunction and navicular bone deformity.

Conclusion. During treatment of rigid flat feet in children it’s necessary to take into consideration severity, compression ratio of the navicular bone, the mobility index, the stage of the posterior tibialis tendon dysfunction and the angle of its tension. Long-term results indicate the effectiveness of surgery on bones and soft tissues in the treatment of severe rigid flat feet.
The Lived Experiences of Adolescents Living with a Schizophrenic Mother
Authors: Siagian Indah Mentari , Suryani Suryani , Sutini Titin
Published: April 2021

The character building and the development of adolescents are greatly influenced by their mothers. Adolescentswho have a schizophrenic mother can undergo problems in their development. This study aimed to explorethe lived experiences of adolescents who live with a schizophrenic mother in Bandung. This is a qualitativestudy with a phenomenological approach. In-depth interviews were conducted with six adolescents aged 17–24 who live with a schizophrenic mother in Bandung. Interview transcripts were analyzed using the Colaizzimethod. Eight essential themes emerged in this study. The participants were experiencing various negativeemotions while living with their mother and lack of mother-child attachment, but they kept on trying to acceptthe mother’s condition. They expected that there will be no stigma toward their mother. They needed supportsand a friend who could understand and give advice. Notwithstanding the negative situations, they could finda lesson behind the hardship and the father became the source of inspiration. Getting supports from the fatherand having good friends are the main keys for them to survive. The implications for nursing practice are theneed to provide health education programs to help adolescents manage emotions, the development of familyfocused care programs, and peer-support groups. Further research is needed in Indonesia to develop appropriateinterventions to address mental health problems for adolescents who have schizophrenic mothers in Indonesia.
Tony Sandoval, una estética de la melancolía
Authors:   , Vázquez Díaz Nadia
Published: April 2021

He elegido estudiar la obra de un autor mexicano con una carrera sólida como ilustrador en el extranjero, misma que le ha permitido publicar proyectos personales con la libertad de mostrar un estilo y temáticas propias. Su narrativa gráfica sumerge al lector en esa diégesis entre el horror y la nostalgia, la sensualidad y la violencia, la realidad y la ficción. Ilustrador narrador gráfico, Manuel Antonio Sandoval Arballo mejor conocido como Tony Sandoval, es oriundo de Ciudad Obregón, Sonora (1973), En esta investigación, elegí trabajar con sus novelas de corte fantástico publicadas en español, en las cuales el autor realizó tanto el guion como la ilustración Por consiguiente, propongo el análisis de cuatro de sus obras: El cadáver y el sofá, Nocturno, Watersnakes y Mil tormentas; las cuales guardan entre sí diversas similitudes; se trata de novelas de formación en las que los protagonistas son personajes tristes y angustiados, quienes ante un ambiente que se les muestra hostil, van buscando algo que no tienen del todo claro, han sufrido importantes pérdidas y viven en pueblos tranquilos donde parece que nada ocurrirá. La configuración de los ambientes y los personajes, sumado a las historias relatadas sumerge al lector en una diégesis melancólica, por lo que mi propósito es extraer la esencia de su estética con el objetivo de mostrar cómo Tony Sandoval, ha creado un estilo que los lectores pueden relacionar fácilmente con él.
Combination use of triamcinolone acetonide and immunotherapy as a new therapeutic option in alopecia totalis
Authors: Yoshimasu Takashi , Mikita Naoya , Ikeda Takaharu , Kanazawa Nobuo , Furukawa Fukumi , Jinnin Masatoshi
Published: April 2021

Alopecia totalis (AT) with body hair loss is the most severe type of alopecia areata (AA). The ability to develop hair is suggested to be poor in such severe AA, because AT does not respond to corticosteroid pulses and immunotherapy using squaric acid dibutylester (SADBE) or diphenylcyclopropenone (DPCP). The purpose of this study is to assess the possibility of hair regrowth in AT with body hair loss. Ten patients with AT who did not respond to topical immunotherapies, received triamcinolone acetonide (TA) injections. Undiluted or 2-fold diluted solutions of TA were prepared and 0.1–0.2 mL of either of the two solutions was administered to each patient. In total, 2 mL of the selected solution was injected monthly into each area. In cases where vellus hair developed after the injections, we restarted the immunotherapy using SADBE or DPCP and continued the therapies for more than half a year. The development of vellus hair after TA injections was defined as a good response. Complete response rate to the topical injection of TA was 10% (1/10), however the partially good response rate was 60% (6/10). The good responders showed the anagen stage of hair follicle after TA injections. Furthermore, the complete responder to TA showed susceptibility to the subsequent immunotherapy and more regrowth of hair was seen. Even if patients with AT have suffered for a prolonged period since onset, it is possible to recover the hair cycle if they show susceptibility to intralesional corticosteroid and subsequent immunotherapy.
Exosome-mediated immune regulation and its clinical application
Authors: Seo Naohiro
Published: April 2021

Immune system is a precise mechanism for maintenance of homeostasis by lymphocyte-mediated elimination of extracellular and intercellular pathogens, and abnormal cells in cytokine-, chemokine-, antibody-, and cytotoxic granule-dependent manners. Extracellular vesicles, e.g. exosomes, released from multivesicular endosome in immune cells have been known to be a part of the immune system. Exosomes released by antigen-presenting cells (APCs) such as macrophages and dendritic cells (DCs) regulate natural killer (NK) cells, CD8+ T cells (Cytotoxic T lymphocytes [CTLs]), and CD4+ T cells (Th cells) including Th1, Th2, and regulatory T (Treg) cells. In the anti-tumor immune system, NK cells and CTLs are mainly involved in the elimination of tumor cells by direct interaction. Recently, we clarified that tumor-infiltrating CD8+ T cells prevent tumor invasion and metastasis by exosome-mediated destruction of tumor stroma consist of mesenchymal stem cells (MSCs) and cancer-associated fibroblasts (CAFs). In this review article, we describe the role of exosomes in controlling immune system and its clinical application.
Eucalyptus Citriodora Extract Regulates Cutaneous Homeostasis Including Immune Dysregulation and Skin Barrier Dysfunction Via the Modulation of Peroxisome Proliferator-Activated Receptor-β/δ (PPAR-β/δ) Pathway
Authors: Yamada Takuhiro , Aioi Akihiro
Published: April 2021

Perturbation of cutaneous homeostasis including immune dysregulation and skin barrier dysfunction evokes skin disorders. In this study, we examined the effect of Eucalyptus citriodora (Euc-c) extract on cytokine production, cell proliferation and cell differentiation in HaCaT cells to elucidate its influence on cutaneous homeostasis. Euc-c suppressed significantly LPS-induced IL-6 and TNF-a-induced IL-8 production from HaCaT cells. Conversely IL-1ra production was significantly enhanced by Euc-c. The expressions of IVL, CERS3 and CERS4, keratinocyte differentiation markers, were upregulated to 3.1, 2.8 and 2.7-fold respectively by Euc-c treatment, compared to the control, while the proliferation was downregulated. The lipid contents in Euc-c-treated cells tended to increase, compared with non-treated cells. To explore the underlying mechanism of these effect, we next performed siRNA experiments against PPAR-b/d. Euc-c enhanced PPAR-b/d mRNA expression to 3.25-fold, while PPAR-b/d mRNA expression in transfected cells was suppressed. The expressions of IVL, CERS3 and CERS4 in transfected cells were suppressed to 1.48, 0.82 and 0.72-fold respectively, concomitant with suppression of PPAR-b/d mRNA expression. These results indicated that Euc-c exerts anti-inflammatory effects and regulates keratinocyte differentiation via the modulation of PPAR-b/d pathway. Therefore, the application of Euc-c is expected to exert beneficial effect on skin disorders evoked by perturbation of skin homeostasis.
Dimethyl sulfoxide as a strongly coordinating solvent: 3′,4′-dihydroxyflavone-Cu(II)-DMSO system case study
Authors: Šimunková Miriama , Malček Michal
Published: April 2021

Dimethyl sulfoxide (DMSO) is an aprotic organic solvent widely used in laboratory practice due to its ability to dissolve both polar and nonpolar compounds. However, DMSO is also commonly known as a strongly coordinating solvent, especially towards transition metal containing complexes. In this study, estimation of the coordination ability of DMSO towards the Cu(II) ion was attempted, employing a model system composed of 3′,4′-dihydroxyflavone-Cu(II) complex in the presence of explicit DMSO molecules, using the density functional theory (DFT). Nature of the Cu-DMSO chemical interaction (i.e. Cu-O bonding) was studied within the framework of quantum theory of atoms in molecules (QTAIM). Impact of DMSO coordination on the charge and spin distribution at Cu(II) ion was inspected using Mulliken population and QTAIM analysis.
Histological Evaluation of Periradicular Tissue Inflammatory Reactions and Calcified Tissue Formations After Implantation of Experimental Calcium Silicate and Hydroxyapatite Based Nanostructural Cements Into Root Canals of Rabbits Teeth
Authors: Violeta Petrović , Vanja Opačić-Galić , Vukoman Jokanović , Jelena Sopta , Bolka Prokić Bogomir , Slavoljub Živković
Published: April 2021

The aim of the study was to evaluate inflammatory tissue reactions and the formation of calcified tissue after implantation of experimental nanostructured calcium silicate cement (CS) and hydroxyapatite with calcium silicate cement (HA-CS) into root canals of rabbits’ teeth. The study was conducted on four rabbits of the genus Oryctolagus cuniculus. After instrumentation and irrigation, the root canals of the central incisors were dried and filled with CS, HA-CS and control material (MTA Angelus). The animals were sacrificed after 28 days. After histological preparation and hematoxylin-eosin staining, tissue samples were evaluated for the intensity and extension of inflammatory tissue reaction; continuity, morphology and thickness of the newly formed calcified tissue; and presence of giant cells, materials particles and microorganisms. Kruskal Wallis and Dunn’s post hoc test were used for data analysis (α=0.05). There were no significant differences in the intensity of inflammatory reactions between CS, HA-CS and MTA control. HA-CS showed significantly better results than MTA and CS with respect to continuity of the newly formed calcified tissue (P=0.003 and P=0.010, respectively). Significant differences in thickness of the calcified tissue existed between CS and MTA (P=0.004) and between HA-CS and MTA (P=0.012). Application of CS and HA-CS resulted in minimal inflammatory tissue response, similar to the MTA control. CS and HA-CS were more efficient than MTA in supporting hard tissue formation. The best organized newly formed calcified tissue was seen after HA-CS application.
Trueperella pyogenes Induced Cerebral Abscess in a West Highland White Terrier
Authors: Mustafa Usta , Fatma İlhan , Hasan Özen , Ziya İlhan , Musa Karaman , Yusuf Kurban Muhammed
Published: April 2021

Cerebral abscesses are occasionally seen in animals, however are rare in dogs. Among the pyogenic bacteria causing cerebral abscesses Trueperella pyogenes is relatively scarce. In this report, a case of T. pyogenes induced cerebral abscess in a West Highland White Terrier was presented with histopathological and bacteriological findings. Two foci of cerebral abscesses located at the level of the thalamus, and the frontal and temporal lobes were described on necropsy. Severe suppurative meningoencephalitis and ventriculitis were noted on microscopic view. T. pyogenes was isolated and identified in bacteriological investigation. This report states that T. pyogenes can be a causative agent of cerebral abscesses in dogs.
Sarcoid in the Lower Eyelid Due to Bovine Papillomavirus-2 in a Donkey (Equus Asinus)
Authors: Yesari Eroksuz , Hasan Abayli , Ibrahim Canpolat , Canan Akdeniz Incili , Burak Karabulut , Murat Tanrisever , Enver Beytut
Published: April 2021

Sarcoid tumors were described by means of histopathological and molecular procedures in a 5-year-old donkey. Histopathological examination showed epithelial changes including hyperkeratosis, epithelial hyperplasia, koilocytosis, and rete peg formation. Neoplastic fibroblastic cells were plumb, large spindle to stellate and embedded in dense collagenous tissue. Results of Polymerase Chain Reaction and DNA sequence analysis showed that the etiological agent belonged to Bovine Papilloma Virus-II species in the delta papilloma virus genus. This case study represents the first report demonstrating the presence of Bovine Papilloma Virus-II in donkey sarcoid.
Robust LFT-LPV H∞ Control of an Underactuated Inverted Pendulum on a Cart with Optimal Weighting Functions Selection by GA and ES
Authors: Hasseni Seif-El-Islam , Abdou Latifa
Published: April 2021

This article investigates the robust stabilization and control of the inverted pendulum on a cart against disturbances, measurement noises, and parametric uncertainties by the LFT-based LPV technique (Linear-Fractional-Transformation based Linear-Parameter-Varying). To make the applying of the LPV technique possible, the LPV representation of the inverted pendulum on a cart model is developed. Besides, the underactuated constraint of this vehicle is overcome by considering both degrees of freedom (the rotational one and the translational one) in the structure. Moreover, the selection of the weighting functions that represent the desired performance is solved by two approaches of evolutionary algorithms; Genetic Algorithms (GA) and Evolutionary Strategies (ES) to find the weighting functions’ optimal parameters. To validate the proposed approach, simulations are performed and they show the effectiveness of the proposed approach to obtain robust controllers against external signals, as well as the parametric uncertainties.
Data processing method of noise logging based on cubic spline interpolation
Authors: Hao Wu , Rui Deng , Song Linghu , Ruixiang Yang , Jinhai Zhang , Juan Cao
Published: April 2021

Noise logging is a method to determine the natural noise in a well. In the actual production logging process, it is a common situation that the noise data is not continuous with depth, which can be solved by the cubic spline interpolation method. This method is a piecewise interpolation method, which fits with a three-time polynomial in each segment interval, and adds up the polynomials on all intervals to get the interpolation formula. The interpolated data points are a smooth transition with good stability. In this article, the original noise data is interpolated to continuous noise data by cubic spline interpolation method, and then evaluated by noise imaging logging, which presents good results. The cubic-spline interpolation method ensures the internal connection of noise data, and also realizes the fine description and recognition of the characteristics of the output layer. This method will provide a low-cost and effective logging evaluation method for production logging, which has a wide range of applications.
Case Studies on the Use of UAV’s for Documentation of Cultural Heritage
Authors: Wojciechowska Gabriela
Published: April 2021

In material cultural heritage documentation, the use of measurement methods, i.e. photogrammetry and laser scanning, is becoming more and more common. The increasing availability of hardware and software allows to create the photorealistic models of objects documenting the heritage and the state of its preservation. The virtual object model can carry information about the dimensions, shape, color and texture of the documented object and it can be the basis for the documentation of the archaeological site, architectural and construction inventory, architectural and conservation studies and monitoring the condition of the object. In the paper presented an overview of the most important measurement techniques and methods for acquiring spatial data used in the documentation of monuments, with particular reference to photogrammetric documentation generated on the basis of data obtained from photographs made with the use of UAV. The heritage documentation presented in the paper were created using the Agisoft Photoscan software. The use of geographic information systems in storing, analyzing and sharing information about monuments was also discussed.