Coulomb-type interaction under Lorentz symmetry breaking effects

Based on models of confinement of quarks, we analyse a relativistic scalar particle subject to a scalar potential proportional to the inverse of the radial distance and under the effects of the violation of the Lorentz symmetry. We show that the effects of the Lorentz symmetry breaking can induced a harmonic-type potential. Then, we solve the Klein-Gordon equation analytically and discuss the influence of the background of the violation of the Lorentz symmetry on the relativistic energy levels.Comment: 10 pages, no figur

Pelaksanaan Penilaian Hasil Belajar Siswa pada Sub Tema Hidup Rukun dengan Teman Bermain di Kelas II Sdn 14 Banda Aceh

Penelitian ini berjudul pelaksanaan penilaian hasil belajar siswa pada subtema hidup rukun dengan teman bermain di kelas II Sekolah Dasar Negeri 14 Banda Aceh. Adapun rumusan masalah penelitian ini adalah bagaimana pelaksanaan penilaian hasil belajar siswa pada subtema hidup rukun dengan teman bermain di kelas II Sekolah Dasar Negeri 14 Banda Aceh. Penelitian ini bertujuan untuk mengetahui pelaksanaan penilaian hasil belajar siswa pada subtema hidup rukun dengan teman bermain di kelas II Sekolah Dasar Negeri 14 Banda Aceh. Subjek dalam penelitian ini adalah guru kelas II pada tahun ajaran 2016-2017 yaitu 1 orang. Pendekatan yang digunakan dalam penelitian ini adalah pendekatan kualitatif dengan jenis penelitian deskriptif. Pengumpulan data dilakukan dengan teknik observasi dan dokumentasi. Berdasarkan hasil analisis data yang diperoleh dari penelitian ini adalah berupa lembaran pengamatan yang peneliti amati mengenai pelaksanaan penilaian hasil belajar siswa oleh guru selama berlangsungnya proses belajar mengajar. Kegiatan observasi ini dilakukan selama 6 hari pada 6 pembelajaran berdasarkan subtema Hidup Rukun dengan Teman Bermain.Simpulan penelitian ini adalah penilaian menuntut guru agar secara langsung maupun tidak, mampu melaksanakan penilaian dalam keseluruhan proses pembelajaran guna untuk menilai sejauh mana siswa telah menguasai beragam kompetensi. Pelaksanaan penilaian hasil belajar siswa pada tema Hidup Rukun dengan subtema Hidup Rukun dengan Teman Bermain pada kelas II Sekolah Dasar Negeri 14 Banda Aceh pelaksanaan penilaian sikap, pengetahuan dan keterampilan sudah terlaksana dengan Kurikulum 2013

Feshbach-Villars oscillator (FVO) in Kaluza-Klein Theory (KKT)

This research investigates the relativistic quantum dynamics of spin-0 scalar massive charged particles via the relativistic Feshbach-Villars oscillator in the background of the Kaluza-Klein Theory. We solve the Feshbach-Villars equation in the abckground of a cosmic string spec-time in the context of the Kaluza-Klein and presented the eigenvalue solution. Afterward, we rewrite this system in the case of the Feshbach-Villars quantum oscillator and obtain the eigenvalue analytically. Finally, we study the interaction of the Feshbach-Villars equation and oscillator in a cosmic dislocation in the Som-Raychaudhuri in the context of the Kaluza-Klein Theory and solve the wave equation analytically. We analyze the influence of topological defect in the quantification of energy and wave function of the Feshbach-Villars oscillator and with the external fields in the last oneComment: arXiv admin note: text overlap with arXiv:2304.12496 (Accepted for publication In Nuclear Physics B

Flat ring epimorphisms and universal localizations of commutative rings

We study different types of localizations of a commutative noetherian ring. More precisely, we provide criteria to decide: (a) if a given flat ring epimorphism is a universal localization in the sense of Cohn and Schofield; and (b) when such universal localizations are classical rings of fractions. In order to find such criteria, we use the theory of support and we analyse the specialization closed subset associated to a flat ring epimorphism. In case the underlying ring is locally factorial or of Krull dimension one, we show that all flat ring epimorphisms are universal localizations. Moreover, it turns out that an answer to the question of when universal localizations are classical depends on the structure of the Picard group. We furthermore discuss the case of normal rings, for which the divisor class group plays an essential role to decide if a given flat ring epimorphism is a universal localization. Finally, we explore several (counter)examples which highlight the necessity of our assumptions

Crystal structures and Hirshfeld surface analyses of (E)-N′-benzylidene-2-oxo-2H-chromene-3-carbohydrazide and the disordered hemi-DMSO solvate of (E)-2-oxo-N′-(3,4,5-trimethoxybenzylidene)-2H-chromene-3-carbohydrazide: lattice energy and intermolecular interaction energy calculations for the former

The crystal structures of the disordered hemi-DMSO solvate of (E)-2-oxo-N'-(3,4,5-tri-meth-oxy-benzyl-idene)-2H-chromene-3-carbohydrazide, C20H18N2O6·0.5C2H6OS, and (E)-N'-benzyl-idene-2-oxo-2H-chromene-3-carbohydrazide, C17H12N2O3 (4: R = C6H5), are discussed. The non-hydrogen atoms in compound [4: R = (3,4,5-MeO)3C6H2)] exhibit a distinct curvature, while those in compound, (4: R = C6H5), are essential coplanar. In (4: R = C6H5), C-H⋯O and π-π intra-molecular inter-actions combine to form a three-dimensional array. A three-dimensional array is also found for the hemi-DMSO solvate of [4: R = (3,4,5-MeO)3C6H2], in which the mol-ecules of coumarin are linked by C-H⋯O and C-H⋯π inter-actions, and form tubes into which the DMSO mol-ecules are cocooned. Hirshfeld surface analyses of both compounds are reported, as are the lattice energy and inter-molecular inter-action energy calculations of compound (4: R = C6H5).info:eu-repo/semantics/publishedVersio

Diversity and genetic stability in banana genotypes in a breeding program using inter simple sequence repeats (ISSR) markers.

Made available in DSpace on 2018-01-26T23:44:14Z (GMT). No. of bitstreams: 1 Artigo4bananaGMR.pdf: 510244 bytes, checksum: 76db03037cac0e61e25c3e73b7871560 (MD5) Previous issue date: 2017-06-02bitstream/item/160491/1/Artigo-4-banana-GMR.pd

Non-alcoholic fatty liver in hereditary fructose intolerance

Background: Non-alcoholic fatty liver disease (NAFLD) is characterized by fat accumulation affecting >5% of the liver volume that is not explained by alcohol abuse. It is known that fructose gives rise to NAFLD and it has been recently described that the ingestion of fructose in low amounts in aldolase B deficient mice is associated with the development of fatty liver. Therefore, it is reasonable that patients with HFI (Hereditary Fructose Intolerance) present fatty liver at diagnosis, but its prevalence in patients treated and with adequate follow-up is not well documented in the literature. The aim of this study is to analyze the association between HFI and NAFLD in treated patients. Methods: A cross-sectional observational study was conducted. The population comprised 16 genetically diagnosed HFI patients aged from 3 years to 48 and in dietary treatment of fructose, sorbitol and sacarose exclusion at least for two years. Blood samples were obtained for analytical studies and anthropometric measurements of each patient were performed. Results: Patients presented a Body Mass Index (BMI) of 17.9 ± 2.9 kg/m 2 . The HOMA index and Quick index were in normal range for our population. The S-adenosyl-methionine (SAM)/S-adenosyl-L-homocysteine (SAH) ratio was increased in the patients in whom this analysis was performed. By imaging techniques it was observed that 9 of the 16 patients presented fatty liver (7 by hepatic MRI). Of these 9 patients, only 3 presented hepatomegaly. 7 of 9 patients affected by the c.448G > C mutation had fatty infiltration, of which three of them presented in addition hepatomegaly. Conclusions: There is a high prevalence of fatty liver in HFI patients and it is not related to obesity and insulin resistance. The diagnosis of fatty liver in HFI patients and, above all, the identification of new therapeutic approaches, can positively impact the quality of life of these patients

Uso de marcadores moleculares para seleção e introdução de novos acessos de moringa.

A Moringa oleifera Lam., pertence à família Moringaceae e foi introduzida no Brasil como planta ornamental por volta de 1950. Atualmente é amplamente cultivada por sua característica de espécie multiuso. O objetivo do presente trabalho foi avaliar a diversidade genética de moringa, oriundas de sementes, para introdução de acessos no Banco Ativo de Germoplasma, implantado pela Embrapa Tabuleiros Costeiros. Foram testados sete primers ISSR, que resultaram em 32 fragmentos polimórficos (100%). A distância genética entre os indivíduos será utilizada para seleção dos que serão inseridos no BAG moringa

Alterações em abóbora após cocção.

A abóbora (Cucurbita moschata Duch) é uma olerícola de grande aceitação em todo o Brasil, especialmente na região Nordeste. É bastante utilizada na alimentação diária do nordestino, onde é conhecida por Jerimum, para elaboração de diversos pratos e doces, que podem ser caseiros ou industrializados. Durante o processo de cocção, há perda de nutrientes e alteração na qualidade do alimento a ser consumido. O trabalho foi desenvolvido com o objetivo de avaliar as alterações ocorridas em abóboras após a cocção. Os 115 frutos avaliados foram oriundos do programa de melhoramento de abóbora da Embrapa Tabuleiros Costeiros (CPATC), colhidos em outubro de 2013, no Campo Experimental Pedro Arle, locali zado no município de Frei Paulo, Sergipe. As análises foram realizadas na Sala de Pós-colheita do CPATC, em Aracaju. Os pedaços, pesando cerca de 200g foram fervidos em 1L de água, onde permaneceram por cinco minutos. Antes e após a cocção, todas as amostras foram avaliadas quanto ao peso da massa fresca, firmeza e teor de sólidos solúveis (SS). Foi realizado o teste de Tukey para comparação de médias, ao nível de 5% de significância, utilizando-se o programa estatístico SAS. Não ocorreu perda de massa fresca significativa, que variou de 142,28g (antes) a 138,27 g (após a cocção). Entretanto, o teor de SS diminuiu significativamente de 11,68 para 11,08ºBrix, e a firmeza, de 12,75 a 5,69N. As características avaliadas neste trabalho, associadas a outras de importância nutricional e comercial, são importantes informações ao programa de melhoramento da espécie