bluuebunny/crossref_metadata_2025 huggingface dataset:
Feature Extraction of Melanoma Data using Machine Learning Techniques
Authors: Dr.K.Merriliance R.Veeralakshmi,
Published: September 2021

In our body the skin is the largest organ, it protects from injury, infection and also helps to maintain the temperature of the body. Melanoma Skin cancer is one of the most dangerous skin diseases and it is caused by an uncontrolled growth of abnormal skin cells, by ultraviolet radiation from sunshine. Melanoma is more common among white skins such as Americans than in darker skins. The digital lesion images have been analyzed based on image acquisition, pre-processing, and image segmentation technique. The image segmentation technique is applied to easily identify the affected portion in the skin input image. The images are enhanced using morphological filters and sharpen region of interest in an image, enhancement method enhanced the non-uniform background illumination and converts the input image into a binary image too easy to identify foreground objects. The mole of melanoma is segmented from the background using Active Contour algorithm. After that, the feature extraction methods such as Kernel PCA, SIFT are used to extract melanoma affected area in an image based on their intensity and texture features.
Pharmacogenetic approach to methotrexate-related toxicity prediction in psoriasis
Authors: Kubanov Alexey А. , Asoskova Anastasiia V. , Sychev Dmitriy A.
Published: September 2021

Methotrexate is a highly effective for psoriasis, but the use of methotrexate may be limited by its adverse effects. Approximately 1030% of patients treated with methotrexate experience adverse drug reactions, leading to the therapy discontinuation. Patient genetics can play a significant role in the interindividual variability of drug response. There is a growing body of literature on allelic variants of various genes that are assosiated with methotrexate toxicity. Pharmacogenetic studies may establish how patients genotype affect the safety of methotrexate. Treatment Data shows that to predict the risk of methotrexate-induced toxicity it is necessary to take into account the interindividual variability in methotrexate pharmacokinetics, which may be determined by the presence of single-nucleotide polymorphisms of genes encoding methotrexate carrier proteins and enzymes of its biotransformation. The activity of transporter proteins affects the drugs in the blood plasma and peripheral tissues, thereby determining its toxicity. The review was aimed is to summarize the current knowledge on pharmacogenetic polymorphisms that may affect the variability of methotrexate-related toxicity. Evaluation of such promising candidates for predictors of methotrexate-related toxicity risk could be used in psoriasis treatment personalization.
What do we know about osteoma cutis? Literature review. Clinical cases
Authors: Snarskaya Elena S. , Teplyuk Natalia P. , Vasileva Ksenia D. , Vertieva E. Yu.
Published: September 2021

This article summarises the data of epidemiology, etipathogenesis, a clinical picture, diagnosis and the treatment of osteoma cutis. The classification, a histological picture, the place of osteoma cutis from the point of view of the phenotype in relation to the information of the world literature are presented.
Osteoma cutis is a rare benign disease characterised by the formation of the bone tissue in the dermis or subcutaneous fat. Two theories of the origin of osteoma cutis are of particular interest: the result of fibroblast metaplasia into osteoblasts or the differentiation of primitive mesenchymal cells into osteoblasts and their migration to an ectopic site. Diagnosis and differential diagnosis are based on the clinical examination, measurement of calcium, parathyroid hormone, x-ray and skin biopsy. The differential diagnosis involves many dermatoses, including ossified hair follicle, osteosarcoma, epidermoid cysts, fibromas, neurofibromas, basal cell carcinoma, etc. The approach to the treatment is to use non-invasive or invasive methods: tretinoin cream, dermabrasion and punch biopsy, YAG laser, scalpel excision, curettage and CO2 laser.
We consider skin osteoma to be an underestimated dermatosis, since we have not found descriptions of such cases in reviews in the available Russian literature.
Pengenalan Huruf Arab Berbasis Analogi Benda melalui Media ABATA bagi Anak Tunagrahita
Authors: Romadhon Muhammad Syahri , Thoriquttyas Titis , Hanafi Yusuf , Ahsanuddin Mohammad
Published: September 2021

Abstract: Intellectually disabled children have difficulty understanding abstract things such as Arabic letters. An appropriate learning media that can help them learn is significantly needed. In addition, some Intellectually disabled children can only pronounce Arabic letters but do not know the shape of the Arabic letters. In this context, ABATA media associates and equates Arabic letters with surrounding objects in their form and pronunciation so that intellectually disabled children can know the form and pronunciation of Arabic letters. This research aims to describe the ABATA media and its effectiveness. This research uses narrative review by gathering data from various sources, analyzing and designing the media. ABATA media is designed based on visual media and adopts the analogy method by equating the form of objects with Arabic letters, and the pronunciation of Arabic letters is the same as the initial syllable of objects. Based on the search for various literature sources conducted by the researchers, ABATA media is predicted to be adequate for mentally disabled children in introducing Arabic letters. This is because the visual media and analogy methods that are the basis for developing the ABATA media have proven effective and acceptable to intellectually disabled children. Therefore, ABATA media is believed to make it easier to introduce the shape and pronunciation of Arabic letters.
Keywords: Arabic letters, visual media, analogy, intellectual disability.
Abstrak: Anak tunagrahita mengalami kesulitan dalam memahami hal yang bersifat abstrak, seperti huruf Arab sehingga diperlukan media yang dapat mengonkretkan hal tersebut. Selain itu, terdapat anak tunagrahita yang hanya mampu melafalkan huruf Arab namun tidak mengetahui bentuk huruf Arab tersebut. Dalam konteks ini, media ABATA mengaitkan dan menyamakan huruf Arab dengan benda-benda sekitar dalam bentuk dan pengucapannya agar anak tunagrahita mampu mengetahui bentuk sekaligus pelafalan huruf Arab. Penelitian ini bertujuan untuk mendeskripsikan media ABATA dan keefektifannya secara konseptual. Penelitian ini menggunakan metode narrative review dengan mencari berbagai sumber, menganalisis, dan kemudian mendesain media. Media ABATA dirancang berbasis media bergambar dan mengadopsi metode analogi dengan menyamakan bentuk benda dengan bentuk huruf Arab. Adapun pelafalan huruf Arab disamakan dengan suku awal benda. Berdasarkan penelusuran berbagai literatur yang telah dilakukan oleh peneliti, media ABATA diprediksikan efektif untuk diterapkan kepada anak tunagrahita dalam mengenalkan huruf Arab. Hal ini didasarkan pada kenyataan bahwa media bergambar dan metode analogi yang menjadi basis pengembangan media ABATA ini terbukti efektif dan mampu diterima oleh anak tunagrahita. Oleh karena itu, media ABATA diyakini mampu mempermudah dalam pengenalan bentuk sekaligus pelafalan huruf Arab.
Kata kunci:  huruf Arab, media bergambar, analogi, tunagrahita
Rebranding Ma’Ayu Batik Probolinggo sebagai Upaya Peningkatan Brand Awareness
Authors: Imanuddin R Muhammad Hanafi , Susilo Gunawan , Hermanto Yon Ade Lose
Published: September 2021

Abstract: Since it was first established until 2021 Ma'ayu Batik still does not have a consistent brand identity that can represent the product. The business only relies on the superiority of its batik products without thinking about the importance of corporate identity to spark the audience to glance at these products. The purpose of this design is to create a brand identity to increase awareness. The method used by Alina Wheeler has five stages for designing, namely: conducting research, clarifying strategy, designing identity, creating touchpoints, and managing assets. The results of this design are in accordance with the existing problem formulations, resulting in a Graphic Standard Manual (GSM). GSM contains the concept of brand identity, the language used for communication, font selection, supergraphics and the implementation of identity on the media.

Keywords: Ma’ayu Batik, brand identity, awareness

Abstrak: Sejak pertama kali didirikan hingga 2021 Ma’ayu Batik masih belum memiliki brand identity yang konsisten yang dapat merepresentasikan produk. Usaha tersebut hanya mengandalkan keunggulan dari produk batiknya saja tanpa memikirkan pentingnya identitas korporat untuk memantik audiens agar melirik produk tersebut. Tujuan perancangan ini menciptakan brand identity untuk meningkatkan awareness. Metode menggunakan milik Wheeler (2013) yang mempunyai lima tahap untuk melakukan perancangan yaitu: conducting research, clarifying strategy, designing identity, creating touchpoints, and managing assets. Hasil perancangan ini sesuai dengan rumusan masalah yang ada, menghasilkan Graphic Standard Manual (GSM). GSM tersebut memuat konsep brand identity, bahasa yang digunakan untuk komunikasi, pemilihan font, supergraphic dan implementasi identitas terhadap media.

 Kata kunci: Ma’ayu Batik, brand Identity, awareness
Kohesi dan Koherensi dalam Karangan Mahasiswa Program In-Country Tahun 2018-2019
Authors: I’tishom Muhammad
Published: September 2021

Abstract: This research aims to describe the use of cohesion and coherence in Thai students’ papers. This research uses qualitative methods. The data of this research are in the form of cohesion and coherence. The data source of this research are Thai students’ final papers. The data were then analyzed using description, interpretation, and explanation. The results of this research show two concerns as follows. First, the use of cohesion markers in student papers including grammatical cohesion (conjunctions and references) and lexical conjunctions (repetition, synonyms, antonyms, hyponyms, and collocations). Second, the coherence markers used include marked coherence (causality, contrast, additive, temporal, chronological, intensity, and sequence) and unmarked coherence (details and data organization). Based on the results and discussion, it was concluded that these Thai students of In-Country program in 2018/2019 could use limited cohesion and coherence in writing Indonesian papers.
Keyword: cohesion, coherence, BIPA, student writing, BIPA student.
Abstrak: Penelitian ini bertujuan untuk mendeskripsikan pemakaian kohesi dan koherensi dalam karangan mahasiswa Thailand yang belajar bahasa Indonesia. Penelitian ini menggunakan rancangan kualitatif. Data penelitian berupa bentuk-bentuk kohesi dan koherensi. Data penelitian bersumber dari sejumlah makalah tugas akhir mahasiswa. Data penelitian dianalisis dengan cara melakukan deskripsi, interpretasi, dan eksplanasi. Hasil penelitian menunjukkan dua hal sebagai berikut. Pertama, pemakaian penanda kohesi dalam karangan mahasiswa mencakup kohesi gramatikal (konjungsi dan referensi) dan konjungsi leksikal (repetisi, sinoni, antonim, hiponim, dan kolokasi). Kedua, penanda koherensi yang digunakan mencakup koherensi berpenanda (kausalitas, kontras, aditif, temporal, kronologis, intensitas, dan perurutan) dan koherensi tidak berpenanda (perincian dan perian). Berdasarkan hasil dan pembahasan disimpulkan mahasiswa Thailand program In-Country tahun 2018/2019 mampu menggunakan kohesi dan koherensi secara terbatas dalam menulis karangan bahasa Indonesia.
Kata kunci: kohesi, koherensi, BIPA, karangan, mahasiswa BIPA.
Gaya Bahasa dalam Karangan Teks Pidato Persuasif Siswa Generasi Z
Authors: Sari Risma Septyana , Siswanto Wahyudi , Ariani Dewi
Published: September 2021

Abstract: Language style is a characteristic used by writers to convey meaning, thoughts, and feelings in written form so that it can be accepted by the readers. The purpose of this study is to describe the style of language in the persuasive speech text of generation Z students which includes a variety of affirmative language styles, language styles based on direct or indirect meaning, and language styles based on word choice. This study uses a qualitative approach with the type of research using text analysis research. The data analysis was carried out in 3 stages, there are data reduction, data presentation, and concluding. Based on the results of the research, 10 styles of affirmative language found described are repetition, pararima, alliteration, tautology, climax, anticlimax, rhetorical, polysyndeton, asindeton, and exclamation. The style of language based on whether or not the meaning is directly found is 6 rhetorical language styles are alliteration, assonance, asindeton, polysyndeton, pleonasm and tautology, and erothesis, and 2 figurative language styles are metonymy and paronomasia. The style of language based on the choice of words found are formal, informal, and conversation styles.

Keywords: language style, persuasive speech, generation Z students

 

Abstrak: Gaya bahasa merupakan ciri khas yang digunakan penulis untuk menyampaikan makna, pikiran dan perasaan dalam bentuk tulisan sehingga dapat diterima oleh pembaca. Tujuan penelitian ini untuk mendeskripsikan gaya bahasa dalam karangan teks pidato persuasif siswa generasi Z yang mencakup ragam gaya bahasa penegasan, gaya bahasa berdasarkan langsung tidaknya makna, dan gaya bahasa berdasarkan pilihan kata. Penelitian ini menggunakan pendekatan kualitatif dengan jenis penelitian analisis teks. Analisis data dilakukan dengan melalui 3 tahap yaitu reduksi data, penyajian data, dan penarikan simpulan. Berdasarkan hasil penelitian, dipaparkan ragam gaya bahasa penegasan yang ditemukan sebanyak 10 gaya bahasa yaitu repetisi, pararima, aliterasi, tautologi, klimaks, antiklimaks, retoris, polisindenton, asindenton, dan ekslamasio. Gaya bahasa berdasarkan langsung tidaknya makna yang ditemukan sebanyak 6 gaya bahasa retoris yaitu aliterasi, asonansi, asindenton, polisindenton, pleonasme dan tautologi, dan erotesis, dan 2 gaya bahasa kiasan yaitu metonimia dan paronomasia. Gaya bahasa berdasarkan pilihan kata yang ditemukan yaitu gaya bahasa resmi, tak resmi, dan percakapan.

Kata kunci: gaya bahasa, pidato persuasif, siswa generasi Z
PENERAPAN KESELAMATAN DAN KESEHATAN KERJA (K3) PADA SISWA KOMPETENSI KEAHLIAN BISNIS KONSTRUKSI PROPERTI DI SMK NEGERI 1 SINGOSARI
Authors: Nugroho Agung Adhi , Wena Made , Suwarno Eko
Published: September 2021

Abstrak: Keselamatan dan Kesehatan Kerja (K3) merupakan hal yang harus diperhatikan ketika berada di bengkel kerja. Berdasarkan pengamatan yang telah dilakukan di SMK Negeri 1 Singosari khususnya pada kompetensi keahlian Bisnis Konstruksi dan Properti (BKP), menunjukkan bahwa sebagian siswa belum menerapkan K3 Penelitian ini bertujuan untuk mengetahui penerapan Keselamatan dan Kesehatan Kerja (K3) yang meliputi: (1). Pengetahuan siswa tentang penerapan K3, (2). Program sarana prasarana K3 dan (3). Penerapan K3 di praktik kerja pelaksanaan bisnis konstruksi properti. Penelitian ini menggunakan pendekatan deskriptif kuantitatif. Teknik pengumpulan data menggunakan angket. Sampel penelitian adalah siswa kelas X kompetensi keahlian Bisnis Konstruksi dan Properti di SMK Negeri 1 Singosari. Hasil penelitian yang telah dianalisis didapat sebagai berikut: (1) Pengetahuan K3 pada Kompetensi Keahlian Bisnis Konstruksi dan Properti SMKN 1 Singosari berpredikat baik karena memiliki presentase 92,4 persen. (2) Program sarana prasarana K3 pada Kompetensi Keahlian Bisnis Konstruksi dan Propeti SMKN 1 Singosari tergolong baik karena memiliki presentase 91,2 persen. (3) Penerapan K3 menurut presepsi siswa pada Kompetensi Keahlian Bisnis Konstruksi dan Propeti SMKN 1 Singosari dikategorikan baik karena secara keseluruhan memiliki presentase 92,4 persen.Kata-kata kunci: keselamatan, kesehatan kerja, sarana, prasarana, bisnis konstruksi
PERUBAHAN KARAKTERISTIK FISIK DAN KUAT GESER TANAH LEMPUNG KABUPATEN PROBOLINGGO YANG DISTABILISASI MENGGUNAKAN CAMPURAN KAPUR DAN GARAM DAPUR (NaCl)
Authors: Apriyani Lutfi Indah , Jirna I Wayan , Setyawan Eko
Published: September 2021

Abstrak:Pada beberapa daerah memiliki kondisi tanah yang kurang baik, dapat dilihat dari perubahan volume dan potensi pengembangan yang tinggi. Hasil penelitian pendahuluan terhadap tanah Desa Tamansari Kecamatan Dringu Kabupaten Probolinggo diketahui nilai IP = 37,802 persen dan persentase tanah lolos ayakan no. 200 sebanyak 53,440 persen. Berdasarkan klasifikasi sistem American Association of State Highway and Transportation Official (AASHTO), tanah tersebut termasuk dalam kelompok A–7–5(18) merupakan tanah berlempung yang tergolong tanah kurang baik/ buruk untuk dijadikan tanah dasar. Sedangkan menurut sistem Unified Soil Classification System (USCS), tanah tersebut termasuk dalam kelompok OH yaitu lempung organik dengan plastisitas sedang sampai tinggi. Penelitian ini bertujuan untuk (1) mengetahui perubahan yang terjadi pada karakteristik fisik dan (2) perubahan kuat geser tanah lempung yang distabilisasi menggunakan kapur dan garam dapur. Pada penelitian ini menggunakan metode eksperimental. Persentase penambahan campuran kapur dan garam dapur yaitu 0 persen kapur dan 0 persen garam dapur; 10 persen kapur dan 25 persen garam dapur; 15 persen kapur dan 20 persen garam dapur; 20 persen kapur dan 15 persen garam dapur; dan 25 persen kapur dan 10 persen garam dapur. Pengujian yang dilakukan yaitu untuk peninjauan tentang karakteristik fisik tanah yaitu uji LL, PL, dan SL, sedangkan peninjauan kuat geser tanah dilakukan uji geser langsung (direct shear test). Dari hasil penelitian yang diperoleh menunjukkan tanah mengalami perubahan perbaikan karakteristik fisik dan kuat geser tanah (τf) setelah distabilisisai dengan kapur dan garam dapur. Perubahan tanah yang paling baik terjadi pada penambahan kapur 10 persen dan garam dapur 25 persen. Nilai IP tanah asli sebesar 37,802 persen, setelah distabilisasi dengan penambahan tersebut turun menjadi 5,682 persen. Sedangkan nilai kuat geser tanah asli sebesar 0,222 kg/cm2, setelah distabilisasi dengan campuran tersebut naik menjadi 0,462 kg/cm2Kata-kata kunci: Tanah lempung, kuat geser, Stabilisasi, Kapur, Garam Dapur (NaCl)
Simulation modeling and experimental validation of solar photovoltaic PMBLDC motor water pumping system
Authors: DEOKAR Vinayak , BINDU Rupa , DEOKAR Tejashri
Published: September 2021

Solar energy is abundantly available on the earth and can be utilized in various applications by converting it in a suitable form. Water supply in remote places and rural areas is still critical due to the unavailability of the grid power. In a developing country like India, the grid construction cost is 6670 $/km because of which some remote areas are still waiting for electricity. There is a large scope to meet this need with the help of a standalone solar water pumping system. In this context, this work presents detailed simulation in MATLAB/Simulink and experimental validation of photovoltaic (PV) permanent magnet brushless DC (PMBLDC) motor water pumping system without energy storing. Simulation is a tool to get system behavior at the various input parameters immedi ately reflects a change in the output parameter. The simulation results are validated with the help of field trials on the experimental setup. A 0.5 hp photovoltaic permanent magnet brushless DC (PMBLDC) motor water pumping system was used for extensive field trials experimentation. After extensive field trials, the optimum irradiation observed for full water discharge 19.9 L/min was 330 W/m2 where voltage and current were 35.1 V and 3.1 A respectively. The Water flow – Irradiation characteristic curve and percentage variation in simulation and experimental results showed a good agreement with each other. The efficiency of the photovoltaic panel and the entire solar water pumping system observed was 12.76 ± 0.64 % and 9.07±0.45 % respectively. The 0.5 hp PMBLDC motor water pumping system is sufficient to lift 10000 L water every day. PMBLDC motor, shown added advantage of lesser running maintenance due to the absence of carbon brushes which need frequent replacement in case of brushed DC motor.
Effect of air fan position on heat transfer performance of elliptical pin fin heat sink subjected to impinging air flow
Authors: MOHAMMED Adil Abbas , RAZUQI Saad Abdulwahab
Published: September 2021

Heat rejection from electronic components by heat sink is still a viable cooling solution. The optimal heat sink design enables higher heat transfer performance. The purpose of the present study is to predict the effectiveness of heat sink elliptical closely spaced fins subjected to impinging air cooling. The air fan is the main source of impinging air, then its position and direction with the heat sink take the main role in present work. Two positions of fan location are studied. The first position where the fan is outside the heat sink and the second case where the fan is existed in a cut out template. So there are one impinging air inlet with four transverse outlets and one axial exit opposite to the air flow inlet. Reynolds number were taken at a range 3400-16000, the flow was turbulent so k-ϵ model turbulence model was used as our choice to simulate mean flow characteristics for turbulent flow conditions. The heat sink base was subjected to constant heat flux condition and proposed with range between 10000–40000 kW/m2 to keep the base temperature at a temperature around 100 oC. The Results of temperature contour lines depicted a variation from the base to the extended surfaces tips. The comparison between the two cases results showed high temperature difference in the case with the cut out template. Nusselts numbers indicated that the second case performed better in heat transfer than the first case. The experimental and numerical results showed a good agreement with a difference not exceeding 2%.
Numerical investigation of heat transfer and pressure drop characteristics in an offset strip fin heat exchanger
Authors: DOĞAN Bahadır , OZTURK M. Mete , ERBAY L. Berrin
Published: September 2021

This paper presents a numerical simulation to determine the air-side heat transfer and the pressure drop characteristics of a flat tube heat exchanger with offset strip fin. The effects of the fin bending ratio such as 29%, 36%, 44%, 50%, and the fin spacing such as 2.10 mm, 2.35 mm, 2.60 mm on the performance of the heat exchanger are studied by using a commercial CFD software. The air having constant viscosity, thermal conductivity, and density enters the heat exchanger at 298 K and the wall temperature of the strip fins is considered as constant at 314 K. Variations of the heat transfer coefficient and the pressure drop in the airside are presented with respect to the frontal air velocity while Colburn j-factor and the friction factor f are presented with respect to the airside Reynolds number ranging from 200 to 1200. Finally, the thermal-hydraulic performance of all investigated cases is compared by using the volume goodness factor, j/f 1/3. The results show that the air-side heat transfer coefficient and the pressure drop increase when the frontal air velocity ascends. The air-side heat transfer coefficient decreases with the increase of fin spacing. The fin bending ratio does not have a significant effect on the pressure drop in the considered fin spacing. Both the Colburn j-factor and friction factor reduce with the increment of Reynolds number and fin spacing.
Boiling heat transfer simulation in rectangular mili-channels
Authors: KOCA Aliihsan , KHALAJI Mansour Nasiri , SEPAHYAR Soroush
Published: September 2021

Due to the high heat transfer coefficient and compactness of a system, mili-channel-based cooling and heating techniques are greatly expected to be distributing high heat flux from the electronic devices. In terms of cooling performance, the two-phase evaporating flow of boiling flow in mini and mili-channels is more effective than the single-phase flow due to the inclusion of latent energy in the process. In this study, a numerical model was proposed to simulate the boiling heat transfer
of multiphase flow in a channel using different boundary conditions in the channel surfaces. The fluid volume approach regulating the hydrodynamics of the two-phase flow was used. Source terms of the energy and mass transfer that were taken into account at the interface of liquid and vapor were included in the management equations for the conservation of energy and vapor quality. A 3D Ansys-Fluent© simulation model was developed and numerical simulations were conducted for four different boundary conditions. A mili-channel with a length of 140 mm was used. The liquid and gas phases that were used in the model were liquid water and vapor; the total mass flux at the inlet was varied at 118–126 kg/m2s. In order to realize thin film annular flow over the boiler surface, employed specific boundary conditions in the 3D simulation model were obtained by means of one dimensional Matlab© simulation code. By means of utilizing the evaluated numerical results, distribution of heat transfer coefficient, vapor quality and dimensionless temperature over the heat transfer surfaces were reported and compared to experimental results. Numerically evaluated results are in agreement with experimentally measured results. For the studies cases an average value of 23600 W/m2.K was obtained for the heat transfer coefficient.
A powerful goodness-of-fit test for Lindley distribution with application to real data
Authors: Alizadeh Noughabi Hadi
Published: September 2021

The Lindley distribution may serve as a useful reliability model. Applications of this distribution are presented in statistical literature. In this article, a powerful goodness of fit test for the Lindley distribution is proposed. In order to compute the proposed test statistic, we use the maximum likelihood estimate (MLE) suggested by Ghitany et al. (2008), which is simple explicit estimator. By Monte Carlo simulation, critical points of the proposed test statistic for different sample sizes are obtained. Power values of the proposed test are compared with the competing tests against various alternatives via simulations. Finally, two real data are presented and analyzed.
Optimized Polynomial Classiﬁer for Classiﬁcation of M-PSK Signals
Authors: Muhammad Nooh Bany , Sarfraz Mubashar , Ghauri Sajjad A. , Masood Saqib
Published: September 2021

Automatic modulation classiﬁcation (AMC) is the emerging research area for military and civil applications. In this paper, M-PSK signals are classiﬁed using the optimized polynomial classiﬁer. The distinct features i.e., higher order cumulants (HOC’s) are extracted from the noisy received signal and the dataset is generated with different number of samples, various SNR’s and on several fading channels. The proposed classiﬁer structure classiﬁes the overall modulation classiﬁcation problem into binary sub-classiﬁcations. In each sub-classiﬁcation, the extracted features are expanded using polynomial expansion into higher dimension space. In higher dimension space numerous non-linearly separable classes becomes linearly separable. The performance of the proposed classiﬁer is evaluated on Rayleigh and Rician fading channels in the presence of additive white gaussian noise (AWGN). The polynomial classiﬁer performance is optimized using one of the famous heuristic computational techniques i.e., Genetic Algorithm (GA). The extensive simulations have been carried with and without optimization, which shows relatively better percentage classiﬁcation accuracy (PCA) as compared with the state of art existing techniques.
Modeling and Assessment of Rotation and Gravity in a Piezoelectric Viscothermoelastic Multilayered Composite LEMV / CFRP Cylinder
Authors: Poongkothai Jeyaraman , Mahesh Samydurai , Selvamani Rajendran
Published: September 2021

A mathematical model is developed to analysis the effects of gravitational force and rotation in a composite multilayered hollow cylinder which contain inner and outer piezo-thermoelasticity layers bonded by Linear Elastic Material with Voids (LEMV) is performed within the frame of dual-phase-lag model. The equation of displacement components, temperature, and electric are obtained using linear theory of elasticity. The dispersion equations are derived based on traction free boundary conditions and are numerically examined for CdSe material. The enumerated frequency, thermal and electrical nature against wave number is presented graphically. Adhesive layer LEMV is compared with Carbon Fiber Reinforced Polymer (CFRP) in the presence of gravity and rotation.
Texturas bioinspiradas y fabricación digital
Authors: Torreblanca-Díaz David A , Patiño Mazo Ever
Published: September 2021

En los sistemas biológicos han actuado tres mil ochocientos millones de años de evolución, generando formas que se han adaptado a un complejo ecosistema de condiciones físicas y químicas. A partir de lo anterior, la Bioinspiración utiliza esa información biológica para facilitar el diseño de formas y estructuras. Dentro de este campo, el libro presenta los resultados del proyecto de investigación Repertorio de texturas bioinspiradas, a través de experimentaciones morfológicas con tecnologías de fabricación digital. El texto comienza con el marco de referencia del proyecto, vinculando diversos ámbitos, como la bioinspiración y la biomimética, las superficies biológicas, la morfología experimental, y las tecnologías de fabricación digital en el contexto de la Cuarta revolución industrial; para luego presentar los resultados vinculados a la ruta metodológica que se siguió: (i) caracterización de texturas en la naturaleza, (ii) abstracción de los patrones en el software CAD,
Responsabilidad por culpa patronal La contradictoria naturaleza civil y contractual del régimen de responsabilidad
Authors: Gallego Soto Cristian Mauricio
Published: September 2021

La responsabilidad por culpa patronal (art. 126 del Código Sustantivo del Trabajo), según la Sala de Casación Laboral de la Corte Suprema de Justicia, corresponde a un régimen de responsabilidad de naturaleza civil y de carácter contractual, que tiene su origen en el incumplimiento de la obligación de seguridad y protección prevista en el artículo 56 del CST; pero, tras un análisis de ese régimen se evidencian contradicciones con las características que el Código Civil y la jurisprudencia prevén para la responsabilidad originada por la causación del daño, ante el incumplimiento de una obligación contractual, siendo relevante aquella que refiere a la legitimación para solicitar la reparación del daño, que por vía contractual, radica en las partes del contrato o sus herederos, mientras que en la responsabilidad por culpa patronal, la legitimación alcanza a todo aquel que demuestre que sufrió un daño, independiente que sea parte en el contrato de trabajo. El resultado de la investigación, en la que se realizó una revisión documental con enfoque crítico y cualitativo de la jurisprudencia y doctrina nacionales, deja ver que la postura del Alto Tribunal ha decantado diferentes etapas en su desarrollo histórico y que, de igual manera, los doctrinantes se han sumado a la discusión procurando definir la naturaleza jurídica de la responsabilidad por culpa patronal.
Ciudadanía, una hidra de mil cabezas conceptuales: breves consideraciones y un diálogo entre perspectivas diversas
Authors: Guillermo Guerrero Mario
Published: September 2021

El objetivo del presente trabajo es ofrecer una breve sistematización de la discusión disciplinar sobre el concepto de ciudadanía, con el propósito de identificar algunas notas que permitan ordenar la discusión teórica sobre la problemática. En el contexto latinoamericano, que se ha mostrado atravesado por neopopulismos, giros a la derecha y reminiscencias golpistas propias del siglo pasado, (re)pensar el concepto de ciudadanía se torna de gran importancia a los fines de (re)definir sus límites y alcances actuales pudiendo, con ello, constituir respuestas alternativas a los procesos que, como comunidad latinoamericana, nos atraviesan. De esta manera, el análisis propuesto permitirá concluir, que la ciudadanía ha demostrado ser un producto de la interacción no solo de los miembros pertenecientes a una comunidad política, sino también de cómo ha sido la interacción entre ciudadanos, cuasi-ciudadanos y no ciudadanos, dando lugar a lógicas de conflicto y construcción de consensos entre los actores sociales.
Políticas públicas e desenvolvimento humano: fatores que impactam o IDH em municípios brasileiros
Authors: Saab Flavio , Dias Fagner Oliveira , Lopes André Vaz , Ramalho Pedro Ivo Sebba
Published: September 2021

A abordagem do desenvolvimento humano considera que apenas o crescimento econômico não é suficiente para explicar o progresso, que decorre de um processo maior de transformação. Neste contexto, o Índice de Desenvolvimento Humano – IDH tem se mostrado um importante indicador para apoiar o direcionamento de políticas públicas capazes de promover o progresso e aumentar a qualidade de vida das populações. Para contribuir com este debate, a presente pesquisa tem como objetivo investigar quais fatores explicam o IDH de municípios brasileiros. A partir da literatura, foram identificadas variáveis socioeconômicas com potencial relação funcional com o IDH. Por meio de análise de dados em painel de 1.292 municípios brasileiros, selecionados por posição geográfica, representatividade populacional e pela disponibilidade de dados, foram testadas as três formulações econométricas alternativas: Pooled Regression, Modelo de Efeitos Aleatórios e Modelo de Efeitos Fixos. Os resultados da regressão indicaram que as condições de energia elétrica, tamanho populacional, localização, renda e saneamento se mostraram fatores explicativos do IDH. Do ponto de vista teórico, os resultados complementaram estudos que relacionam variáveis socioeconômicas ao IDH e, em perspectiva prática, indicou caminhos para que políticos e gestores possam promover políticas públicas capazes de melhorar o desenvolvimento humano em municípios brasileiros.
Perfil comportamental dos Controllers no Brasil: como estão os nossos profissionais?
Authors: Reginato Luciane , Durso Samuel de Oliveira
Published: September 2021

A área conhecida como Controladoria exerce um importante papel para assegurar a saúde econômico-financeira das entidades. Assim, analisar os fenômenos inerentes aos profissionais da área ajuda a compreender como eles podem auxiliar no desempenho das organizações. Nesse contexto, esta pesquisa buscou identificar o perfil comportamental dos controllers atuantes em empresas no Brasil. Para isso, foi realizado um levantamento, por meio de questionário, obtendo 104 respostas válidas de profissionais da Controladoria. O questionário foi aplicado entre agosto de 2019 a julho de 2020. A análise de dados contou com correlações e regressões lineares múltiplas. As evidências indicam que os atuantes da Controladoria de empresas brasileiras apresentam bons níveis de motivação, poder de tomada de decisão, conscienciosidade e capacidade de trabalhar em equipe. Em contrapartida, foi possível identificar a presença de comportamentos geradores de estresse e necessidades de melhorias nas características interpessoais desses profissionais. Como principais variáveis explicativas do perfil comportamental dos indivíduos da amostra, destacam-se a idade, o tempo de experiência e o estado civil. A pesquisa contribui para um melhor entendimento sobre as características presentes em controllers que atuam em empresas no país, auxiliando na evolução da literatura sobre a atuação dos profissionais da Controladoria. Adicionalmente, a investigação contribui para uma reflexão sobre a formação dos controllers no Brasil, levantando características e habilidades importantes para a atuação desses profissionais. O estudo permite, ainda, impulsionar incentivos para o desenvolvimento pessoal e profissional dos atuantes na Controladoria, os quais apresentam papel central no desempenho econômico-financeiro das empresas.
How Teacher Characteristics Relate to How Teachers Use Dashboards: Results From Two Case Studies in K-12
Authors: van Leeuwen Anouschka , Knoop-van Campen Carolien A. N. , Molenaar Inge , Rummel Nikol
Published: September 2021

Teacher dashboards are a specific form of analytics in which visual displays provide teachers with information about their students; for example, concerning student progress and performance on tasks during lessons or lectures. In the present paper, we focus on the role of teacher dashboards in the context of teacher decision-making in K–12 education. There is large variation in teacher dashboard use in the classroom, which could be explained by teacher characteristics. Therefore, we investigate the role of teacher characteristics — such as experience, age, gender, and self-efficacy — in how teachers use dashboards. More specifically, we present two case studies to understand how diversity in teacher dashboard use is related to teacher characteristics. Surprisingly, in both case studies, teacher characteristics were not associated with dashboard use. Based on our findings, we propose an initial framework to understand what contributes to diversity of dashboard use. This framework might support future research to attribute diversity in dashboard use. This paper should be seen as a first step in examining the role of teacher characteristics in dashboard use in K–12 education.
De-identification is Insufficient to Protect Student Privacy, or – What Can a Field Trip Reveal?
Authors: Yacobson Elad , Fuhrman Orly , Hershkovitz Sara , Alexandron Giora
Published: September 2021

Learning analytics have the potential to improve teaching and learning in K–12 education, but as student data is increasingly being collected and transferred for the purpose of analysis, it is important to take measures that will protect student privacy. A common approach to achieve this goal is the de-identification of the data, meaning the removal of personal details that can reveal student identity. However, as we demonstrate, de-identification alone is not a complete solution. We show how we can discover sensitive information about students by linking de-identified datasets with publicly available school data, using unsupervised machine learning techniques. This underlines that de-identification alone is insufficient if we wish to further learning analytics in K–12 without compromising student privacy.
Learning Analytics for Primary and Secondary Schools
Authors: Kovanovic Vitomir , Mazziotti Claudia , Lodge Jason
Published: September 2021

Over the past decade, the increasing use of learning analytics opened the possibility of making data-driven decisions for improving student learning. Driven by the strong university adoption of learning analytics, most early learning analytics research focused on issues specific to tertiary education. With the broader adoption of educational technologies in primary and secondary education and the emergence of new classroom-focused technologies, there has been a growing awareness of the potentials of learning analytics for supporting students and diagnosing their learning progress in pre-university contexts. This special section focused on investigating, developing, and evaluating state-of-the-art learning analytics approaches within primary and secondary school settings. In this editorial, we summarize the papers of the special section and discuss the challenges and opportunities for learning analytics within the school context. We conclude with the discussion around the opportunities for future work and the implications of this special section for the field of learning analytics.
The Impact of Working from Home During Pandemic Times on Employees Motivation in Romanian Insurance Companies
Authors:   Valahia University of Târgoviste, Targoviste, Romania, Ştefănescu Bogdan
Published: September 2021

This article represents an analysis of the impact on employees of insurance companies in Romania, of the changes that occurred following the crisis generated by the Coronavirus pandemic. With the implementation of traffic restrictions in the spring of 2020 and the introduction of quarantine in Romania, companies were forced to resort to alternative means of conducting and continuing the activity in safe conditions for employees. The main change was the implementation of work at home, doubled by a strong progress of digitalization in the field. The orientation of companies towards the customer, the desire to offer the most complete services and the need to work as much as possible in the online environment, accelerated the digital transformation processes, offering a new perspective to both customers and employees who were able to experience a large number migrating to work from home. This article pays more attention to the analysis of the direct relationship between staff motivation in the case of work at home and the results obtained, with the final result - the sustainability of the organization's activity.
Rethinking Public Administration through Managers as Leaders
Authors:   Epoka University, Tirana, Albania, Romanelli Mauro
Published: September 2021

Rethinking public administration helps to drive public managers as agents of change who assume behaviours coherently with a leadership identity. Public administration is rediscovering the sustainability as a key source and goal for strategic and organisational change by promoting the organisational dimension that relies on enhancing the quality of people as human resources, strengthening both the public manager as a leader and public servants as employees who are committed and motivated to public service. Managers as leaders help to drive public administration as an organisation which is able to proceed towards future as a sustainable public organisation which develops the quality of human capital and improves performances, supports public trust and enhances democratic life. Rediscovering the organisational dimension helps to develop the leadership as identity and source for ethical and transformational behaviours of a leader, and enables public managers to assume coherent values, attitudes and behaviours developing the leadership as central identity. Today, driving public administration requires effective public managers who are able to behave as ethical and transformational leaders who motivate, support and drive the employees at work.
Particularities in the Process of Implementing a Qualitative Management System in Romanian Secondary Schools, High Schools and Technical Vocational Schools
Authors:   ", Ioniţă (Vişoiu) Carmen ,   Valahia",   University of Targoviste, Doctoral School of Economics and Humanities
Published: September 2021

In order to achieve prosperity and competitiveness, a relevant educational system strongly linked to the economy and the society of the future is required. The authorities cannot certainly say that our country has a well -defined strategy regarding the human capital management, one that is conform to the European Union. Strategies based on lifelong learning are being discussed and analysed. As statistics show, the existing strategy implementation is weaker in the Romanian educational system compared to other European educational systems. The paper focuses on highlighting the main priorities in the process of implementing a qualitative management system in Romanian secondary schools, high schools and technical vocational schools, a modern education that fulfils the market needs.
Teaching Corporate Social Responsibility and Business Ethics at Economic Programs
Authors:   St. Andrews Georgian University, Tbilisi, Georgia, Gigauri Iza , Panait Mirela ,   Petroleum-Gas University of Ploiesti & Institute of National Economy, Bucharest, Romania, Palazzo Maria ,   University of Salerno, Salerno, Italy
Published: September 2021

The pandemic is seen as an opportunity to further advance in business ethics. Prof. Freeman called academics to contribute to developing more ethical business models. Businesses have been revising their missions towards more ethical business models as the pandemic has changed attitudes to life. Society expects that companies will serve human beings rather than solely maximization of profit to their stakeholders. This research is motivated by analyzing the importance of teaching business ethics. This research has looked into the directions of business education in terms of corporate social responsibility (CSR) and business ethics. The article intends to highlight the potential of CSR education in overcoming the pandemic crisis and increasing the wellbeing of society. This desk research underlines the standpoint of universities whether they should teach business ethics or CSR at the business faculties, and analyzes the educational programs of the business faculties to find out their attitude towards teaching of CSR/ethics.
Social Costs of Globalization in Emergent Economies
Authors:   Valahia University of Targoviste, Targoviste, Romania, Tăbîrcă Alina Iuliana , Tănase Loredana Cristina ,   Valahia University of Targoviste, Targoviste, Romania, Radu Valentin ,   Valahia University of Targoviste, Targoviste, Romania
Published: September 2021

This research focuses on identifying and analyzing the main factors that generate social costs in the context of globalization. In emerging economies, the social and economic factors underlying a significant and the growing income inequality tend to be different from work factors in many OECD countries. The importance of the informal economy, combined with the persistence of significant geographic disparities in economic performance, is a significant factor in the inequality of revenues in all emerging economies. In turn, the informal economy and geographic disparities are closely linked to other aspects of inequality such as gender, ethnic differences, disparities in educational achievement, and working conditions. This paper develops these factors and synthesizes their effect in order to serve as a starting point for a further econometric research to measure the impact in emerging economies.
Human Resources Management in Organizational Performance
Authors:   “Valahia” University of Targoviste, Doctoral School of Economics and Humanities, Vasile Gabriel Ionuţ , Zhan Xiaoyu ,   “Valahia” University of Targoviste, Doctoral School of Economics and Humanities
Published: September 2021

The world we live in has countless organizations that are born, grow or disappear. The use of human resources is very common and essential for all types of organizations at all times. They ensure the survival and tryingness of the organization in today's dynamic business environment. The investment in human resources means not only the regular salary payments but also employees' personal and professional development in order to enhance their job skills and act responsibly when necessary. The traditional approach to human resources management implies only the costs for the job performed. The unique values of human resources imply both the ability of personal and professional development and the desire of self-improvement as standards of the modern world require. Work evaluation can have a negative impact and that happens when the manager considers the employee, as individual, accountable for bad job performance and does not take an account of the weak areas of performance evaluation and control.
Social Learning Theory Application on Bullying Phenomenon
Authors: Joseph Sylvia
Published: September 2021

This paper aims to examine the social learning theory utilization in countering the bullying phenomenon in Egypt. The paper investigates the consequences of bullying on mental and emotional health of the bullied person. The purpose of this research is to shed light on the bullying incidents happening in Egypt and its relationship with the social learning theory.