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Author: Grafiati
Published: 30 May 2022
Last updated: 31 May 2022

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1

Sivasankaran, Deepika, Sai Seena P, Rajesh R, and Madheswari Kanmani. "Sketch Based Image Retrieval using Deep Learning Based Machine Learning." International Journal of Engineering and Advanced Technology 10, no. 5 (June 30, 2021): 79–86. http://dx.doi.org/10.35940/ijeat.e2622.0610521.

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Sketch based image retrieval (SBIR) is a sub-domain of Content Based Image Retrieval(CBIR) where the user provides a drawing as an input to obtain i.e retrieve images relevant to the drawing given. The main challenge in SBIR is the subjectivity of the drawings drawn by the user as it entirely relies on the user's ability to express information in hand-drawn form. Since many of the SBIR models created aim at using singular input sketch and retrieving photos based on the given single sketch input, our project aims to enable detection and extraction of multiple sketches given together as a single input sketch image. The features are extracted from individual sketches obtained using deep learning architectures such as VGG16 , and classified to its type based on supervised machine learning using Support Vector Machines. Based on the class obtained, photos are retrieved from the database using an opencv library, CVLib , which finds the objects present in a photo image. From the number of components obtained in each photo, a ranking function is performed to rank the retrieved photos, which are then displayed to the user starting from the highest order of ranking up to the least. The system consisting of VGG16 and SVM provides 89% accuracy
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2

Ferreira, Brunna Souza, Arquimedes Fernandes Melo, Poliana Carvalho Guarino, and Maria Perpétua Dantas Jordão. "Crimes Violentos Letais e Intencionais (CVLI)." Revista Brasileira de Segurança Pública 15, no. 2 (November 10, 2021): 12–27. http://dx.doi.org/10.31060/rbsp.2021.v15.n2.1174.

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Considerando o crescimento significativo dos Crimes Violentos Letais e Intencionais (CVLI) e buscando elementos que colaboram com esse aumento, este estudo tem como objetivo analisar os principais fatores que influenciam o crescimento desses crimes, levando em consideração condições sociais, econômicas e políticas. As análises foram voltadas para o Estado de Pernambuco, mais especificamente à Região Metropolitana do Recife e à cidade de Caruaru, no interior do Estado, com dados coletados contidos nas bases de dados secundários da Gerência de Análise Criminal e Estatística (Gace) e da Agência Estadual de Planejamento e Pesquisas de Pernambuco – Condepe/Fidem. Por fim, os resultados mostram que as circunstâncias econômicas do país, que atingem diretamente as políticas públicas e a condição social da população, corroboram o crescimento desses crimes, uma vez que é possível perceber que nos picos de crise econômica é onde tambem ocorrem os picos de criminalidade.
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3

Pinto, Pedro Israel Mota, and Willame De Oliveira Ribeiro. "Diferenciação socioespacial, violência e (in)justiça espacial na periferia urbana da Terra Firme, Belém/PA." Revista de Geografia 38, no. 3 (November 19, 2021): 351. http://dx.doi.org/10.51359/2238-6211.2021.250422.

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A violência e a criminalidade nas periferias de Belém-PA apresentam forte relação com a precariedade socioespacial. O objetivo da pesquisa consiste em analisar as diferenciações socioespaciais no bairro da Terra Firme, em Belém do Pará, e suas implicações na ocorrência dos Crimes Violentos, Letais e Intencionais – CVLI e na produção de (in)justiças espaciais. A partir de levantamentos bibliográficos, análises documentais e trabalhos de campo constatou-se que a desigualdade socioespacial é marcante no bairro, assinalada pelos aglomerados subnormais, cotas de altimetria e proximidades com instituições públicas. Ademais, destacam-se a violência e a criminalidade através dos CVLI como expressões de outras precariedades e um fator de reforço a elas.
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4

Carneiro, Leonardo de Andrade, and Nilton Marques de Oliveira. "Crimes violentos e suas implicações no desenvolvimento regional: uma revisão da literatura." Research, Society and Development 9, no. 6 (April 24, 2020): e199963626. http://dx.doi.org/10.33448/rsd-v9i6.3626.

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Este estudo discute as implicações dos crimes violentos letais e intencionais - CVLI no desenvolvimento regional, crimes que afetam a qualidade de vida e o bem-estar social, bem como o desenvolvimento socioeconômico. Utilizamos artigos publicados nos últimos anos, que atenderam os critérios de inclusão e exclusão, onde foram selecionados 25 trabalhos que atenderam os critérios pré-estabelecidos, sendo assim, avaliados e analisados, contribuindo deste modo para a produção desta revisão. Identificamos fatores, que estão associados ao aumento e redução dos CVLI e suas consequências no desenvolvimento regional. As descobertas indicam que melhores oportunidades na educação, emprego com salários dignos, renda, mobilização da sociedade civil, políticas de estado mais rígidas, são aspectos capazes de reduzir crimes violentos letais intencionais.
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5

Thammanomai, Apiradee, Lauren E. Hueser, Arnab Majumdar, Erzsébet Bartolák-Suki, and Béla Suki. "Design of a new variable-ventilation method optimized for lung recruitment in mice." Journal of Applied Physiology 104, no. 5 (May 2008): 1329–40. http://dx.doi.org/10.1152/japplphysiol.01002.2007.

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Variable ventilation (VV), characterized by breath-to-breath variation of tidal volume (Vt) and breathing rate (f), has been shown to improve lung mechanics and blood oxygenation during acute lung injury in many species compared with conventional ventilation (CV), characterized by constant Vt and f. During CV as well as VV, the lungs of mice tend to collapse over time; therefore, the goal of this study was to develop a new VV mode (VVN) with an optimized distribution of Vt to maximize recruitment. Groups of normal and HCl-injured mice were subjected to 1 h of CV, original VV (VVO), CV with periodic large breaths (CVLB), and VVN, and the effects of ventilation modes on respiratory mechanics, airway pressure, blood oxygenation, and IL-1β were assessed. During CV and VVO, normal and injured mice showed regional lung collapse with increased airway pressures and poor oxygenation. CVLB and VVN resulted in a stable dynamic equilibrium with significantly improved respiratory mechanics and oxygenation. Nevertheless, VVN provided a consistently better physiological response. In injured mice, VVO and VVN, but not CVLB, were able to reduce the IL-1β-related inflammatory response compared with CV. In conclusion, our results suggest that application of higher Vt values than the single Vt currently used in clinical situations helps stabilize lung function. In addition, variable stretch patterns delivered to the lung by VV can reduce the progression of lung injury due to ventilation in injured mice.
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6

McCROHAN, CATHERINE R., and MICHAEL A. KYRIAKIDES. "Cerebral Interneurones Controlling Feeding Motor Output In The Snail Lymnaea Stagnalis." Journal of Experimental Biology 147, no. 1 (November 1, 1989): 361–74. http://dx.doi.org/10.1242/jeb.147.1.361.

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1. The cerebral ventral 1 (CV1) interneurones of Lymnaea occurred as a population of at least three in each ganglion, all with similar morphologies. Steady depolarization of a CV1 cell led to initiation and maintenance of rhythmic feeding motor output from the buccal ganglia. 2. CV1 interneurones produced facilitating excitatory postsynaptic potentials in Nl interneurones of the buccal central pattern generator for feeding. Connections with N2 interneurones were not found. 3. The CV1 population could be separated into two subgroups. CVla received strong synaptic feedback in phase with the buccal rhythm, leading to strong bursting during generation of feeding motor output. CVlb received only weak feedback, and often fired continuously when depolarized. 4. Unitary inhibitory postsynaptic potentials were characteristic of all CV1 neurones, but were only visible in CVlb when it was depolarized. These inputs are thought to arise indirectly from the buccal central pattern generator. 5. The CV1 population is probably homologous with similar neurones in other gastropod species.
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7

Ferreira, Luís Henrique Costa, and Fernanda Pinheiro Mota da Silva Ferreira. "CRIME VIOLENTO LETAL INTENCIONAL EM SALVADOR, BAHIA: UMA AVALIAÇÃO DE RESULTADOS." Revista do Instituto Brasileiro de Segurança Pública (RIBSP) 1, no. 2 (September 29, 2018): 26–47. http://dx.doi.org/10.36776/ribsp.v1i2.11.

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Quando se trata da segurança pública no atual momento vivido pelo Brasil, com altos índices de criminalidade e escassez de recursos, avaliar o desempenho das políticas públicas é de vital importância. No geral, os resultados das políticas e ações de segurança pública estão sendo avaliados através da comparação das variações periódicas de indicadores baseados nas quantidades de ocorrências de tipos de delitos. Esta pesquisa parte da premissa de que para avaliar a eficiência de uma política pública não é suficiente comparar valores de indicadores sem considerar mudanças no contexto e a significância da variação. Foram utilizados os dados sobre Crime Violento Letal Intencional – CVLI, correspondentes aos anos de 2014, 2015, 2016 e parte de 2017, disponibilizados na página na internet da Secretária da Segurança Pública do Estado da Bahia, para comparar os resultados em segurança pública no Município de Salvador, Capital do Estado da Bahia, mediante testes estatísticos, análise de série temporal e o uso de técnicas de controle estatístico de processo – CEP. Restou a conclusão de que, mesmo com as variações negativas nas conjunturas econômicas e sociais no território, o indicador de desempenho, no que tange ao CVLI, manteve um desempenho constante, não ocorrendo piora e nem melhora.
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8

Tseng, Hsiang-Chun, Meng-Shiun Tsai, Chih-Chun Cheng, and Chen-Jung Li. "Optimization of Computer Numerical Control Interpolation Parameters Using a Backpropagation Neural Network and Genetic Algorithm with Consideration of Corner Vibrations." Applied Sciences 11, no. 4 (February 12, 2021): 1665. http://dx.doi.org/10.3390/app11041665.

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This paper presents an optimization algorithm for tuning the interpolation parameters of computer numerical control (CNC) controllers; it operates by considering multiple objective functions, namely, contour errors, the machining time (MT), and vibrations. The position commands, position errors, and vibration signals from 1024 experiments were considered in the designed trajectory. The experimental data—the maximum contour error (MCoE), MT, and corner vibration (CVib)—were analyzed to compute the performance index. A backpropagation neural network (BPNN) with 20 hidden layers was applied to predict the performance index. The correlation coefficients for the predicted values and experimental results for the MCoE, MT, and CVib based on the validation data were 0.9984, 0.9998, and 0.9354, respectively. The high correlation coefficients highlight the accuracy of the model for designing the interpolation parameter. After the BPNN model was developed, a genetic algorithm (GA) was adopted to determine the optimized parameters of the interpolation under different weighting of the performance index. A weighted sum approach involving the objective function was employed to determine the optimized interpolation parameters in the GA. Thus, operators can judge the feasibility of the interpolation parameter for various weighting settings. Finally, a mixed path was selected to verify the proposed algorithm.
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9

Lemeshko, О., О. Yeremenko, М. Yevdokymenko, and I. Kuzminykh. "Specifics of creating the Cybersecurity Virtual Laboratory for distance learning." New Collegium 3, no. 101 (October 12, 2020): 41–45. http://dx.doi.org/10.30837/nc.2020.3.41.

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Currently, in conditions of distance learning of students, the problem of the organization of practical and laboratory works acquires special importance. This mainly applies to technical universities, where training in normal conditions is carried out on real equipment and using specialized software. As a result, there is an urgent need to create virtual labs as an effective platform for distance learning for students, particularly in the field of cybersecurity. In this case, one of the effective solutions is to create and deploy a Cybersecurity Virtual Laboratory (CVLab) for distance learning, which will help ensure continuous quality training of future professionals. Besides, distance learning must not be for informational purposes only. Therefore, the formation of practical skills of students requires rapid development and implementation of the effective means of distance learning. Recently, the trend of virtualization of both networks and computers has developed intensively, which allows the development and implementation of more flexible types of virtualized laboratory solutions, including for distance learning. The number of virtualization tools, as well as the latest network equipment created to work in a virtual environment (hypervisors) is increasing. Thus, virtualization allows us to overcome the limitations of traditional networks and hardware network laboratories, given their high cost, power consumption, stability, a limited number of devices, and so on. The introduction of the virtual cybersecurity laboratory CVLab in order to increase the effectiveness of distance education meets the objectives of the Cybersecurity Strategy of Ukraine, as well as priorities and areas of its provision, ranging from general digital literacy to training of security sector actors.
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10

Bai, Jing, Ke Liu, Yong Jiang, Kui Ying, Pengfei Zhang, and Jinhua Shao. "A two-dimensional CVIB imaging system with a speckle tracking algorithm." Ultrasonics 48, no. 5 (September 2008): 394–402. http://dx.doi.org/10.1016/j.ultras.2008.01.010.

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11

Bai, Jing, Ke Liu, Kui Ying, Yong Jiang, Pengfei Zhang, and Jaclyn Lau. "A Two-Dimensional CVIB Imaging System with a Snake-Based Tracking Algorithm." IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 54, no. 11 (November 2007): 2300–2308. http://dx.doi.org/10.1109/tuffc.2007.534.

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12

Souza Sá, Álvaro Robério de. "A criminalidade no Estado de Pernambuco: uma análise espacial dos determinantes das ocorrências de homicídios e roubos." Revista de Estudos Sociais 21, no. 43 (January 29, 2020): 4. http://dx.doi.org/10.19093/res9477.

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Pernambuco tem apresentado uma evolução nos Crimes Violentos Letais Intencionais (CVLI) e Crimes Violentos contra o Patrimônio (CVP), a partir de meados de 2016. Diante disso, este trabalho teve como objetivo identificar os componentes socioeconômicos e geográficos determinantes para o crescimento da criminalidade nos municípios do território estadual. Para isto, foram utilizadas a Análise Exploratório de Dados Espaciais (AEDE) e modelos econométricos com componentes espaciais. Os resultados do Índice de Moran, foram positivos e significativos, indicando dependência espacial na ocorrência de homicídios e roubos na Região Metropolita do Recife (RMR), Agreste e Sertão, através do levantamento de clusters. Os modelos espaciais estimados apontaram que há um efeito de transbordamento e repercussão da criminalidade entre os municípios e seus vizinhos.
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13

Motin, Leonid, Takahiro Yasuda, Christina I. Schroeder, Richard J. Lewis, and David J. Adams. "?-Conotoxin CVIB differentially inhibits native and recombinant N- and P/Q-type calcium channels." European Journal of Neuroscience 25, no. 2 (January 2007): 435–44. http://dx.doi.org/10.1111/j.1460-9568.2006.05299.x.

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14

Silva Almeida, Isabel, and Anselmo Ramalho Pitombeira Neto. "Eficiência dos serviços de segurança pública no Brasil: uma análise por envoltória de dados." Exacta 18, no. 3 (July 10, 2020): 540–60. http://dx.doi.org/10.5585/exactaep.v18n3.10928.

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Este estudo propõe uma avaliação da segurança pública do Brasil através da análise por envoltória de dados. Assumindo-se os 27 estados federativos como as unidades tomadoras de decisão, foram utilizados como inputs as despesas totais com segurança e o efetivo policial total de cada estado, e como output a razão entre o número de habitantes e o número de CVLIs (Crimes Violentos Letais Intencionais), definida como uma “taxa de segurança”. Os dados foram obtidos do Anuário Brasileiro de Segurança Pública, com informações referentes ao ano de 2016. Os resultados indicaram 6 estados na fronteira de eficiência: Santa Catarina, Piauí, Roraima, São Paulo, Rio Grande do Sul e Maranhão. Do total, 33,33% dos estados apresentaram baixa eficiência, 25,93% deles eficiência moderada e 18,52% deles eficiência alta. Em um cenário de escassez de recursos, um indicador científico das ineficiências e possibilidades de realocação destes recursos é extremamente pertinente.
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Jiang, Yong, Jing Bai, Kui Ying, Kezheng Cheng, and Can Yu. "Detecting myocardial ischemia with 2-D CVIB imaging method—An in vivo animal experiment study*." Progress in Natural Science 14, no. 11 (November 1, 2004): 991–95. http://dx.doi.org/10.1080/10020070412331344681.

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16

Malho, Alexandra, Susana Correia, and Sónia Frota. "Emergência de sândi consonântico em Português Europeu: uma abordagem prosódica." Revista da Associação Portuguesa de Linguística, no. 3 (September 29, 2017): 177–90. http://dx.doi.org/10.26334/2183-9077/rapln3ano2017a11.

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In European Portuguese, the domain for sandhi phenomena is the intonational phrase. Unlike the intonational phrase, the phonological phrase has been shown to be only relevant for rhythm and prominence-related phenomena (Frota, 2000, 2014). Fricative voicing between words (casa[ʒb]rancas, casa[ʃp]retas) and ressylabification before vowel-initial words (casa[zɐ]marelas) occur within the intonational phrase. In this study, we considered spontaneous productions of a Portuguese child (Luma), aged 2;04-4;00, to examine the acquisition of external consonantal sandhi. The data show that sandhi production varies according to the segmental (C#C, C#V, CFric, CVib, CLat) and prosodic context (clitic, prosodic word, position in prosodic structure). The data further confirm that sandhi occurs within the intonational phrase, supporting the analysis proposed for the adult grammar. This study contributes to the understanding of the relationship between the acquisition of the prosodic structure and the acquisition of sandhi phenomena.
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17

de Oliveira Pedrosa Rolim, Michelle, Anderson Rodrigues de Almeida, Maira Galdino da Rocha Pitta, Moacyr Jesus Barreto de Melo Rêgo, Lucindo José Quintans-Júnior, Jullyana de Souza Siqueira Quintans, Luana Heimfarth, et al. "Design, synthesis and pharmacological evaluation of CVIB, a codrug of carvacrol and ibuprofen as a novel anti-inflammatory agent." International Immunopharmacology 76 (November 2019): 105856. http://dx.doi.org/10.1016/j.intimp.2019.105856.

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18

Asma Najar, Najoua Homri, Rym Bouhlel, Mehdi Ben Mimoun, and Nuria Duran-Vila. "PERFORMANCE OF THE TUNISIAN 'MALTAISE DEMI SANGUINE' SWEET ORANGE INOCULATED WITH CITRUS EXOCORTIS VIROID (CEVD) AND CACHEXIA VIROID (CVIIB) ON EIGHT ROOTSTOCKS." Acta Horticulturae, no. 1065 (January 2015): 861–68. http://dx.doi.org/10.17660/actahortic.2015.1065.108.

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19

Palermo, Liana, Laura Piccardi, Raffaella Nori, Fiorella Giusberti, and Cecilia Guariglia. "The impact of ageing and gender on visual mental imagery processes: A study of performance on tasks from the Complete Visual Mental Imagery Battery (CVMIB)." Journal of Clinical and Experimental Neuropsychology 38, no. 7 (May 2016): 752–63. http://dx.doi.org/10.1080/13803395.2016.1161735.

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20

Aston, Nigel. "Ernest Ruth d'Ans, patriarche des jansénistes (1653–1728). Une biographie. By Michel van Meerbeeck. (Bibliothèque de la Revue d'histoire ecclésiastique, 87.) Pp. cvlii+632. Louvain-la-Neuve: Collège Érasme/Leuven: Universiteitsbibliotheek/Brussels: Éditions Nauwelaerts, 2006. €65 (paper)." Journal of Ecclesiastical History 61, no. 1 (December 2, 2009): 194–95. http://dx.doi.org/10.1017/s0022046909992557.

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21

"Violência cvli." Revista Susp 1, no. 1 (2021). http://dx.doi.org/10.29327/234650.1.1-7.

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22

Correa, Cristiano, José Jéferson Rêgo Silva, Dayse Duarte, and George Cajaty Braga. "Incêndios em edificações e mortes violentas: O que se esconde por trás da indiferença." Revista Brasileira de Estudos de Segurança Pública 10, no. 2 (June 18, 2018). http://dx.doi.org/10.29377/rebesp.v10i2.283.

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Os incêndios em edificações são mais numerosos do que é noticiado na grande mídia, provocando enormes perdas matérias e muitas tragédias, por vezes silenciosas, com a perda da vida e a produção de feridos. Neste artigo é estudado a possível ‘invisibilidade’ do problema, com foco nos incêndios com letalidade. A cidade de Recife é utilizada como cenário de pesquisa, sendo examinada sua taxa de mortes em incêndios, computadas através dos atendimentos do Corpo de Bombeiros Militar de Pernambuco, ponderando-a com outras cidades que tem população semelhante no mundo. Vê-se ainda a diferença de ordem de grandeza entre estas mortes em incêndios e os números oficiais de óbitos no trânsito e por Crime Violento Letal Intencional – CVLI, estimando que esta diferença vem a ser uma das razões da possível ‘invissibilidade’ dada ao problema.
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Cortés Osorio, Jimmy alexander, José Andrés Chaves Osorio, and Cristian David López Robayo. "Hybrid Algorithm for the detection of Pixel-based digital image forgery using Markov and SIFT descriptors." Revista Facultad de Ingeniería Universidad de Antioquia, November 2, 2021. http://dx.doi.org/10.17533/udea.redin.20211165.

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Today, image forgery is common due to the massification of low-cost/high-resolution digital cameras, along with the accessibility of computer programs for image processing. All media is affected by this issue, which makes the public doubt the news. Though image modification is a typical process in entertainment, when images are taken as evidence in a legal process, modification cannot be considered trivial. Digital forensics has the challenge of ensuring the accuracy and integrity of digital images to overcome this issue. This investigation introduces an algorithm to detect the main types of pixel-based alterations such as copy-move forgery, resampling, and splicing in digital images. For the evaluation of the algorithm, CVLAB, CASIA V1, Columbia, and Columbia Uncompressed datasets were used. Of 7100 images evaluated, 3666 were unaltered, 791 had resampling, 2213 had splicing, and 430 had copy-move forgeries. The algorithm detected all proposed forgery pixel methods with an accuracy of 91%. The main novelties of the proposal are the reduced number of features needed for identification and its robustness for the file format and image size.
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Anjewierden, Scott, Oussama M. Wazni, D. Geoffrey Vince, Mohamed Kanj, Walid Saliba, and Russell J. Fedewa. "Cyclic Variation of Spectral Parameters for the Differentiation of Atrial Myocardium Before and Immediately Following Radiofrequency Ablation." Ultrasonic Imaging, September 13, 2021, 016173462110463. http://dx.doi.org/10.1177/01617346211046314.

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Radiofrequency ablation (RFA) is a common treatment of atrial fibrillation. However, current treatment is associated with a greater than 20% recurrence rate, in part due to inadequate monitoring of tissue viability during ablation. Spectral parameters, in particular cyclic variation of integrated backscatter (CVIB), have shown promise as early indicators of myocardial recovery from ischemia. Our aim was to demonstrate the use of spectral parameters to differentiate atrial myocardium before and after radiofrequency ablation. An AcuNav 10 F catheter was used to collect radiofrequency signals from the posterior wall of the left atrium of patients before and immediately after RFA for AF. The normalized power spectrum was obtained and three spectral parameters (integrated backscatter [IB], slope, and intercept) were extracted across two continuous heart cycles. Parameters were gated for ventricular end-diastole and compared before and after ablation. Additionally, the cyclic variation of each of these three parameters was generated as an average of the variation across the two recorded heart cycles. Data from 14 patients before and after ablation demonstrated a significant difference in the magnitude of the cyclic variation of integrated backscatter (9.0 vs. 6.0 dB, p < .001) and cyclic variation of the intercept (14.0 vs. 11.5 dB, p = .04). No significant difference was noted in the magnitude of the cyclic variation of the slope. Among spectral parameters gated for end-diastole, significant differences were noted in the slope (−4.39 vs. −3.73 dB/MHz, p = .002) and intercept (16.8 vs. 11.9 dB, p = .002). No significant difference was noted in the integrated backscatter. Spectral parameters are able to differentiate atrial myocardium before and immediately following ablation and may be useful in monitoring atrial ablations.
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