Relevant bibliographies by topics / Expression

Academic literature on the topic 'Expression'

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Published: 4 June 2021
Last updated: 31 July 2024

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Journal articles on the topic "Expression"

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Prima, V. I. "Proposals for the ISS: «Expression» Experiment Gene expression in plants in microgravity." Kosmìčna nauka ì tehnologìâ 6, no. 4 (July 30, 2000): 100. http://dx.doi.org/10.15407/knit2000.04.101.

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Chapre Lopita Choudhury, Harshada. "Emotion / Facial Expression Detection." International Journal of Science and Research (IJSR) 12, no. 5 (May 5, 2023): 1395–98. http://dx.doi.org/10.21275/sr23516180518.

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Khaydarov, Anvar Askarovich. "EXPRESSION OF CONNO EXPRESSION OF CONNOTATIVE MEANING IN ONOM TIVE MEANING IN ONOMATOPOEIA." Scientific Reports of Bukhara State University 4, no. 5 (October 27, 2020): 76–80. http://dx.doi.org/10.52297/2181-1466/2020/4/5/5.

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Introduction. There are various means of expressing emotional expressiveness in language, one of which is onomatopoeia. Onomatopoeia refers to the sound or phonetic imitation of what is being described. In onomatopoeia, words express natural sounds and have different connotative meanings. Main part. Sound production in speech acquires the character of artistic expression and performs a certain methodological function. One or another element of the sound system of the language used in prose or poetic text (vowels and consonants, stressed and unstressed syllables, pauses, different intonations, syntactic techniques, repetition of words). Results and discussion.
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Zecca, M., T. Chaminade, M. A. Umilta, K. Itoh, M. Saito, N. Endo, Y. Mizoguchi, et al. "2A1-O10 Emotional Expression Humanoid Robot WE-4RII : Evaluation of the perception of facial emotional expressions by using fMRI." Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2007 (2007): _2A1—O10_1—_2A1—O10_4. http://dx.doi.org/10.1299/jsmermd.2007._2a1-o10_1.

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Riyadisty, Auranissa Putri, and Endang Fauziati. "Hate Expression Found on Twitter as a Response to Meghan Markle." Indonesian Journal of English Language Studies (IJELS) 8, no. 1 (March 24, 2022): 45–51. http://dx.doi.org/10.24071/ijels.v8i1.4421.

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This study's purposes are to identify the categories of hate expressions, identify the strategies of hate expression, and describe the functions of hate expression used by Twitter users toward Meghan Markle as a response to the report that Meghan may run for US president. The objects used were hate expressions used by Twitter netizens. This study applied qualitative descriptive research as the method of research. The data were Twitter replies that contained hate towards Meghan Markle. This study used Mondal et al. (2017), Culpeper (1996), and Bebee (1995) theory for analyzing the data. The results showed that: (1) There are six categories of hate expression to Meghan Markle on Twitter, namely hate the expression of behavior, class, disability, ethnicity, religion, and gender (2) There are four types of strategies of hate expression, namely bald on record impoliteness, positive impoliteness, negative impoliteness, and sarcasm or mock politeness (3) There are four functions of hate expression that thrown by Twitter users, namely expressing unpleasant feelings, entertaining the target audience, mocking the figure, and expressing disagreement.
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Aucouturier, Valérie. "Emotions, intentions and their expressions: Anscombe on Wittgenstein’s stalking cat." Enrahonar. An international journal of theoretical and practical reason 67 (November 30, 2021): 173–97. http://dx.doi.org/10.5565/rev/enrahonar.1286.

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In this paper, I explore the difference between expression of intention and expression of emotion through a discussion of a passage from G.E.M. Anscombe’s Intention, where she claims that expression of intention, unlike expression of emotion, is “purely conventional”. I argue that this claim is grounded on the fact that, although emotions can be described, expressions of emotion are not descriptions at all (e.g. of some present feeling or experience). Similarly, expressions of intention are not descriptions of a present state of mind but are rather the expression of a special sort of foreknowledge of a purported action. They are, in this respect, distinct from expression of emotion, since they are a description of some future happening (the purported action). Now, the centrally descriptive character of expressions of intention is what makes them “purely conventional”. But of course, Anscombe argues, one can have an intention without expressing it. And having an intention does not amount to having some description in mind.
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Marston, Steph. "Expression as Creativity." Journal of Early Modern Studies 11, no. 2 (2022): 95–115. http://dx.doi.org/10.5840/jems202211215.

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Deleuze (1990) reads Part I of the Ethics as articulating an expressionist philosophy, in which to express (exprimere) is the ontological criterion for existence throughout Spinoza’s metaphysical system. However, he argues that inadequate ideas and passions are non‑expressing, such that finite modes express substance only in their adequate ideas. I argue, contra Deleuze, that Spinoza’s account of the workings of the human mind presses us to understand inadequate ideas as genuine expressions of substance which nonetheless are specific to the individuals which form them. On the same textual grounds I propose that the mind’s expression of substance in inadequate ideas, and thus in virtue of its encounters with other modes, is a source of both creativity and potential instability. I put this insight to work in a reading of Spinoza’s political philosophy, arguing that expression generates a dynamic in which social formations enact and reinforce their own forms of expression, while also being subject to the reimaginations and expression of those who live within them.
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Baek, Ji Yeon, Sun Young Kim, Hee Jin Chang, Ji Won Park, Hyo Seong Choi, Dae Yong Kim, Jae Hwan Oh, Hyun Yang Yeo, and Kyunghee Kim. "Expression of serpin B5 in colorectal cancer: Its relationship with CEA expression." Journal of Clinical Oncology 31, no. 15_suppl (May 20, 2013): e14606-e14606. http://dx.doi.org/10.1200/jco.2013.31.15_suppl.e14606.

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e14606 Background: Serpin B5 is a candidate tumor suppressor but its oncogenic activity has been also reported. Its function may be affected by interacting proteins. The aim of this study was to assess the relationship between serpin B5 and carcinoembryonic antigen (CEA) expressions in CRC. We also analyzed the clinicopathological significance of serpin B5 expression in colorectal cancer (CRC) patients. Methods: Two-dimensional gel electrophoresis (2-DE) analysis and matrix-associated laser desorption ionization mass spectrometry (MALDI-MS) were used to identify differentially expressing proteins according to CEA suppression. Serpin B5 and CEA expressions were evaluated by western blot and ELISA assays. Immunohistochemical expression of serpin B5 was assessed retrospectively in tissues from 377 CRC patients, and correlations between serpin B5 and clinicopathological parameters were analyzed. Results: Downregulation of serpin B5 was identified in CEA-suppressed LoVo cell line using 2-DE and MALDI-MS analyses, and further significant positive correlations between serpin B5 and CEA levels were also found in human CRC cell lines and in blood of CRC patients. Tissue expression of serpin B5 in CRC was significantly associated with serum CEA, histologic grade, stage, lymph node metastasis, liver metastasis, lymphatic and perineural invasion, and infiltrative border. High expression of serpin B5 was also associated with a reduced DFS (P = 0.001) and OS (P = 0.017). Conclusions: This is the first study describing relationship between serpin B5 and CEA expression in CRC. High expression of serpin B5 was also associated with worse prognosis in patients with CRC, and its expression may correlate with CEA levels in CRC.
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Subramanian, Vidhya, and Pernati Mahendranath. "Histopathological Study and P53 Expression of Colonic PolypsHistopathological Study and P53 Expression of Colonic Polyps." Indian Journal of Pathology: Research and Practice 7, no. 8 (2018): 938–42. http://dx.doi.org/10.21088/ijprp.2278.148x.7818.10.

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Kurniawan, Rio, Agustina Agustina, and Ngusman Ngusman. "KEKERASAN VERBAL DALAM UNGKAPAN MAKIAN OLEH MASYARAKAT DI DESA KOTO LAWEH KECAMATAN TANJUANG BARU KABUPATEN TANAH DATAR." Jurnal Bahasa dan Sastra 5, no. 2 (February 19, 2018): 110. http://dx.doi.org/10.24036/895940.

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This research was conducted to describe (1) forms of expression of insult, (2) the function of expression, (3) the context of the use of expression of verbal abuse in the village of Koto Laweh Subdistrict Tanjuang Baru Tanah Datar District. This type of research is qualitative research using descriptive method. The subject of this study is a sentence or speech that contains the expression of insults used by the community in the Village Koto Laweh Tanjuang Baru District Tanah Datar. The data taken are analyzed by the following steps: (1) transcribing existing data from various sources into written language, ie from recorded data, interviews, and observations, (2) classifying forms of insults by function and context, (3) ) analyzing the data according to the research objectives, (4) formulating the research findings. There are three findings in this study. First, based on the form, the expression of insults in the verbal violence used by the community in Koto Laweh Village Tanjuang Baru Sub District can be classified into two types (a) expressions of word-shaped, (b) phrase-shaped expressions. Secondly, based on the phrase function of acquired speech in the village of Koto Laweh, there are 7 functions of expression, (1) as a means of expressing resentment, (2) expressing strong and extreme emotions, (3) as joke, means of expressing social intimacy, (5) insulting, (6) expressing frustration and irritation, (7) means of expression of amazement. Third, on the basis of forms of expression it is used in all contexts with reference to four speech situations, ie (a) higher speakers of the position and the relationship is familiar, (b) the speaker is higher in rank and the relationship is not familiar, (c) the speaker is more low his position and the relationship is familiar, (d) the speaker is inferior to his position and the relationship is not familiar.Keywords: form, function, context, invective
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Dissertations / Theses on the topic "Expression"

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Testa, Rafael Luiz. "Síntese de expressões faciais em fotografias para representação de emoções." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/100/100131/tde-31012019-165605/.

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O processamento e a identificação de emoções faciais constituem ações essenciais para estabelecer interação entre pessoas. Alguns transtornos psiquiátricos podem limitar a capacidade de um indivíduo em reconhecer emoções em expressões faciais. De modo a contribuir com a solução deste problema, técnicas computacionais podem ser utilizadas para compor ferramentas destinadas ao diagnóstico, avaliação e treinamento no reconhecimento de tais expressões. Com esta motivação, o objetivo deste trabalho é definir, implementar e avaliar um método para sintetizar expressões faciais que representam emoções em imagens de pessoas reais. Nos trabalhos encontrados na literatura a principal ideia é que a expressão facial da imagem de uma pessoa pode ser reconstituída na imagem de outra pessoa. Este estudo difere-se das abordagens apresentadas na literatura ao propor uma técnica que considera a similaridade entre imagens faciais para escolher aquela que será empregada como origem para a reconstituição. Desta maneira, pretende-se aumentar o realismo das imagens sintetizadas. A abordagem sugerida para resolver o problema, além de buscar as faces mais similares em banco de imagens, faz a deformação dos componentes faciais e o mapeamento das diferenças de iluminação na imagem destino. O realismo das imagens geradas foi mensurado de forma objetiva e subjetiva usando imagens disponíveis em bancos de imagens públicos. Uma análise visual mostrou que as imagens sintetizadas com base em faces similares apresentaram um grau de realismo adequado, principalmente quando comparadas com imagens sintetizadas a partir de faces aleatórias. Além de constituir uma contribuição para a geração de imagens a serem aplicadas em ferramentas de auxílio ao diagnóstico e terapia de distúrbios psiquiátricos, oferece uma contribuição para a área de Ciência da Computação, por meio da proposição de novas técnicas de síntese de expressões faciais
The ability to process and identify facial emotions are essential factors for an individual\'s social interaction. Some psychiatric disorders can limit an individual\'s ability to recognize emotions in facial expressions. This problem could be confronted by using computational techniques in order to develop learning environments for diagnosis, evaluation, and training in identifying facial emotions. With this motivation, the objective of this work is to define, implement and evaluate a method to synthesize realistic facial expression that represents emotions in images of real people. The main idea of the studies found in the literature is that a facial expression of one persons image can be reenacted in an another persons image. The study differs from the approaches presented in the literature when proposing a technique that considers the similarity between facial images to choose the one that will be used as the origin for reenactment. As a result, we intend to increase the realism of the synthesized images. Our approach to solve the problem, besides searching for the most similar facial components in the image dataset, also deforms the facial elements and maps the differences of illumination in the target image. A visual analysis showed that the images synthesized on the basis of similar faces presented an adequate degree of realism, especially when compared with images synthesized from random faces. The study will contribute to the generation of the images applied to tools for the diagnosis and therapy of psychiatric disorders, and also contribute to the computational field, through the proposition of new techniques for facial expression synthesis
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Kane, Matthew Patrick. "A Comparison of Micro-Expression Training Methods." ScholarWorks, 2018. https://scholarworks.waldenu.edu/dissertations/5885.

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Micro-expressions are brief facial expressions that last for 500 milliseconds or less and show the true emotional state of an individual when he or she is displaying a false emotional state. There are currently 2 different methods to train individuals to recognize micro-expressions-picture-based and video-based. Numerous organizations use micro-expression training as part of a deception detection program, but little research has been conducted on training outcomes, and no research has investigated the difference between the methods. In this quantitative study based on Darwin's theory of the universality of emotional expression, a control group experimental design was used to determine if there is a difference in training outcomes, as measured by post-training accuracy rates of overall and emotion-specific micro-expression identification, between the 2 current micro-expression training methods and no training. A total of 196 participants recruited from Amazon's Mechanical Turk community were randomly assigned to a picture-based training, video-based training, or no training control group. The online training and post-training test were delivered via a computer-based training platform. MANOVA, ANOVA and t-tests were run to determine the differences between the groups. Results indicated that participants in both picture-based and video-based training groups showed a significant increase in their ability to recognize micro-expressions compared to those in the no training group, but did not differ from each other. The study provides an increased understanding of micro-expression training outcomes that may contribute to the training of numerous law enforcement, security, and human resources professionals.
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Nascimento, Helvia. "Caracterização da expressão genica de celulas tumorais de pacientes com adenocarcinoma esporadico do colon." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/310956.

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Orientador: Carmen Silvia Passos Lima, Fernando Ferreira Costa
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas
Made available in DSpace on 2018-08-12T11:53:50Z (GMT). No. of bitstreams: 1 Nascimento_Helvia_D.pdf: 1845231 bytes, checksum: 16f227072d706aacb01f06165bd8a553 (MD5) Previous issue date: 2007
Resumo: Os mecanismos moleculares envolvidos na origem do adenocarcinoma de cólon esporádico (ACE) ainda não estão completamente elucidados. Recentemente, o método da análise seriada da expressão gênica (SAGE) foi descrito como eficaz para identificar a expressão total de genes de tipos celulares diversos, mas esta análise não foi realizada em células epiteliais purificadas do ACE moderadamente diferenciado. Nós caracterizamos pelo método SAGE a expressão gênica total de células epiteliais neoplásicas do cólon de um paciente com ACE moderadamente diferenciado (SAGE CC) e de células epiteliais normais do cólon de um paciente com megacólon chagásico (SAGE CN). Foram geradas, após o seqüenciamento automático, 44.004 e 43.570 tags totais das bibliotecas SAGE CC e SAGE CN, representando 16.484 e 13.479 tags únicas, respectivamente. Na comparação entre as bibliotecas, 171 transcritos diferencialmente expressos foram identificados (P< 0,001; expressão diferencial = 5), incluindo 10% de transcritos que podem representar genes não descritos. As expressões de 10 genes diferencialmente expressos foram quantificadas pela reação em cadeia da polimerase em tempo real (qPCR) na amostra de células epiteliais neoplásicas (SAGE CC), com o intuito de validar os resultados obtidos pelo SAGE, e, posteriormente, em amostras de células epiteliais de outros cinco pacientes com o mesmo tipo de doença. As expressões foram concordantes em 80% dos genes (CEACAM6, KLK6, LYZ, PFN1, S100A8, S100A9, VIL2 e ZFHX1B) e discordantes nos demais 20% (PLA1A e ZNF277). As expressões dos genes de interesse, quantificadas pelos dois métodos, foram similares na amostra SAGE CC e nas amostras dos demais pacientes com a doença. Foram observadas expressões anormais de genes envolvidos com a proliferação e diferenciação celular e com a resposta ao stress em células epiteliais neoplásicas. Foram também visualizadas expressões anormais de genes não relacionados com a doença e de genes ainda não identificados. Em conjunto, os nossos resultados podem contribuir para a identificação de genes relacionados com a origem ou a progressão do ACE moderadamente diferenciado e, ainda, para a descoberta de agentes terapêuticos específicos que controlem a proliferação anormal das células neoplásicas.
Abstract: The molecular mechanisms involved in sporadic colon adenocarcinoma (SCA) are still not completely elucidated. Recently, the serial analysis of gene expression (SAGE) method has allowed the global analysis of genes expressed in diverse cellular types but there are no studies in purified epithelial cells of SCA moderately differenciated. We have characterized through SAGE the global gene expression of neoplastic epithelial cells from a SCA moderately differenciated patient (SAGE CC) and normal epithelial cells from a megacolon patient (SAGE CN). After automatic sequencing, a total of 44.004 tags from SAGE CC and 43.570 tags from SAGE CN profiles were generated, representing 16.484 and 13.479 unique tags, respectively. Comparing both profiles, 171 differentially expressed transcripts were identified (P< 0.001; fold = 5), including 10.0% that may represent novel transcripts. The expression of 10 selected genes was further investigated by realtime polymerase chain reaction (qPCR) in the SCA moderately differenciated epithelial cells sample (SAGE CC), with the purpose of to validate the results obtained by the SAGE method, and also in five epithelial cells samples from the same type of SCA patients. Similar expressions were seen in 80% (CEACAM6, KLK6, LYZ, PFN1, S100A8, S100A9, VIL2 e ZFHX1B) and discordant expressions were seen in 20% (PLA1A e ZNF277) of analysed genes. On SAGE CC sample and samples of the SCA patients, all genes presented similar expressions measured by both methods. We observed abnormal expression of genes involved with cell proliferation and differentiation, and with response to stress in neoplastic epithelial cells. Also, were found abnormal expressions of genes not related with the disease and not identified genes. Together, our results may contribute for the identification of genes involved in the origin or progression of SCA moderately differenciated, as well as for the discovery of new therapeutical agents, with specific action on abnormal proliferation of the neoplastic cells.
Doutorado
Ciencias Basicas
Doutor em Clínica Médica
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Nelson, Nicole L. "A Facial Expression of Pax: Revisiting Preschoolers' "Recognition" of Expressions." Thesis, Boston College, 2011. http://hdl.handle.net/2345/2458.

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Thesis advisor: James A. Russell
Prior research showing that children recognize emotional expressions has used a choice-from-array style task; for example, children are asked to find the fear face in an array of several expressions. However, these choice-from-array tasks allow for the use of a process of elimination strategy in which children could select an expression they are unfamiliar with when presented a label that does not apply to other expressions in the array. Across six studies (N = 144), 80% of 2- to 4-year-olds selected a novel expression when presented a target label and performed similarly when the label was novel (such as pax) or familiar (such as fear). In addition, 46% of children went on to freely label the expression with the target label in a subsequent task. These data are the first to show that children extend the process of elimination strategy to facial expressions and also call into question the findings of prior choice-from-array studies
Thesis (PhD) — Boston College, 2011
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Psychology
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Miao, Yu. "A Real Time Facial Expression Recognition System Using Deep Learning." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38488.

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This thesis presents an image-based real-time facial expression recognition system that is capable of recognizing basic facial expressions of several subjects simultaneously from a webcam. Our proposed methodology combines a supervised transfer learning strategy and a joint supervision method with a new supervision signal that is crucial for facial tasks. A convolutional neural network (CNN) model, MobileNet, that contains both accuracy and speed is deployed in both offline and real-time frameworks to enable fast and accurate real-time output. Evaluations for both offline and real-time experiments are provided in our work. The offline evaluation is carried out by first evaluating two publicly available datasets, JAFFE and CK+, and then presenting the results of the cross-dataset evaluation between these two datasets to verify the generalization ability of the proposed method. A comprehensive evaluation configuration for the CK+ dataset is given in this work, providing a baseline for a fair comparison. It reaches an accuracy of 95.24% on JAFFE dataset, and an accuracy of 96.92% on 6-class CK+ dataset which only contains the last frames of image sequences. The resulting average run-time cost for recognition in the real-time implementation is reported, which is approximately 3.57 ms/frame on an NVIDIA Quadro K4200 GPU. The results demonstrate that our proposed CNN-based framework for facial expression recognition, which does not require a massive preprocessing module, can not only achieve state-of-art accuracy on these two datasets but also perform the classification task much faster than a conventional machine learning methodology as a result of the lightweight structure of MobileNet.
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Carminati, Patricia de Oliveira. "Respostas celulares aos danos causados pelo antitumoral cisplatina em linhagens de fibroblastos humanos normais (MRC-5) e astrocítica (U343 MG-a)." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/17/17135/tde-21082007-103139/.

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Uma variedade de agentes antitumorais é capaz de induzir danos no material genético e estimular respostas como o bloqueio do ciclo celular, reparo do DNA ou apoptose. A resposta inicial das células é o bloqueio no ciclo em uma tentativa de reparar o dano, no entanto, se esse dano for muito extenso ou comprometer o metabolismo celular, uma cascata de sinalização aciona mecanismos alternativos que inibem a proliferação das células e acionam vias de morte. Os astrocitomas malignos são os tumores cerebrais mais comuns que afetam o sistema nervoso central, compreendendo mais de 60% dos tumores cerebrais primários. O tratamento padrão é a radioterapia seguida de quimioterapia, no entanto, o prognóstico para pacientes portadores desse tipo de câncer ainda continua desanimador. A cisplatina é um agente genotóxico largamente empregado no tratamento de gliomas, além de outros tipos de câncer. Essa droga liga-se ao DNA, formando aductos, os quais levam a um bloqueio na duplicação e na transcrição, podendo induzir apoptose nas células dependendo da extensão do dano. No presente trabalho foram avaliadas as respostas celulares ao tratamento com a cisplatina em linhagem de glioma (U343 MG-a) e em fibroblastos normais transformados por SV40 (MRC-5). Foram avaliadas as respostas em termos de sobrevivência celular, indução de apoptose e expressão gênica em larga escala pela técnica de micro-arranjos de cDNA, sendo esta última realizada somente para a linhagem U343. A cisplatina causou uma redução acentuada na sobrevivência das células MRC-5 (~1%) e U343 (< 1%) após cinco dias de tratamento (teste de sobrevivência celular) com concentrações que variavam de 12,5 a 300 ?M. O tratamento por 24 h com iguais concentrações de cisplatina reduziu a sobrevivência das linhagens em cerca de 20-80% (teste de citotoxicidade). Ambas as linhagens sofreram apoptose após o tratamento com diversas concentrações de cisplatina (12,5, 25 e 50 ?M). A linhagem U343 apresentou uma freqüência máxima de apoptose de 20,4% após o tratamento com 25 ?M de cisplatina por 72 h, enquanto a linhagem MRC-5 apresentou 11,0% de apoptose após 50 ?M de cisplatina por 48 h. Os dados de expressão gênica analisados pelo método de micro-aranjos de cDNA, obtidos 48 h após o tratamento das células U343 com 25 ?M de cisplatina, mostraram genes significativamente (p ?0,05) reprimidos relacionados principalmente com alterações no citoesqueleto (TBCD, RHOA, LIMK2 e MARK1), apoptose ou sobrevivência celular (BCL2-XL, ING1, RHOA, VDP, TIMP2, DYRK3 e NFKBIE), invasão celular ou metástase (LIMK2, TIMP2 e CALU), reparo de DNA (SMC1L1) e metabolismo celular (DYRK3, MARK1, TBCD, LIMK2, VDP e P4HB), entre outros processos. Esses dados apontam para um sério comprometimento da maquinaria celular como um todo após os danos induzidos pela cisplatina. Embora o mecanismo de apoptose justifique cerca de 20% da extensão de morte celular, conforme foi comprovado nos ensaios de apoptose (induzida por 25 ?M de cisplatina), a maior parte das células são eliminadas em conseqüência da ação da droga em vários níveis do metabolismo e manutenção da integridade celular, visto o elevado grau de citotoxicidade da cisplatina, demonstrado nos testes de sobrevivência.
A variety of antitumoral agents is capable of inducing DNA damage and eliciting cell cycle arrest, DNA repair or apoptotic responses. The initial response is a cell cycle arrest in an attempt to repair the DNA damage, but under conditions of extensive DNA lesions and high drug cytotoxicity, a signaling cascade triggers alternative mechanisms that inhibit cell proliferation and activate cell death pathways. Astrocytomas are the most common neoplasm of the central nervous system, comprising more than 60% of primary brain tumors. The standard treatment for theses tumors are radiotherapy followed by chemotherapy, however, the prognostic for these patients is still very discouraging. Cisplatin is an efficient DNA-damaging antitumor agent employed for the treatment of various human cancers, including gliomas. This drug binds to DNA, producing diverse types of adducts, which can block replication, transcription, and lead to apoptosis induction. In the present work, we analyzed cellular responses to treatments with the anticancer agent cisplatin in MRC-5 (normal human fibroblasts SV40 transformed) and U343 MG-a (glioma cell line). The responses were evaluated in terms of cell survival, apoptosis induction and profiles of gene expression by the cDNA microarrays method (only for U343 cell line). Cisplatin treatment resulted in a pronounced reduction in MRC-5 cell survival (~ 1%) and U343 (< 1%) after five days of treatment (cell survival test) with several concentrations of cisplatin, ranging from 12.5 to 300 ?M. Following 24h of treatment under similar cisplatin concentrations the survival was reduced at about 20-80% (cytotoxicity test). Both cell lines underwent apoptosis after treatment with different concentrations of cisplatin (12.5; 25 and 50 ?M), but U343 cells presented a maximal frequency of 20.4% apoptosis (25 ?M cisplatin treatment for 72h), while MRC-5 cells presented 11.0% (50 ?M cisplatin treatment for 48h). Analysis of gene expression performed for U343 cells treated with 25 ?M cisplatin for 48h showed several genes that were found significantly (p ? 0,05) down-regulated, most of them related with cytoskeleton alterations (TBCD, RHOA, LIMK2 and MARK1), apoptosis or cell survival (BCL2-XL, ING1, RHOA, VDP, TIMP2, DYRK3 and NFKBIE), cell invasion or metastasis (LIMK2, TIMP2 and CALU), DNA repair (SMC1L1), and cell metabolism (DYRK3, MARK1, TBCD, LIMK2, VDP and P4HB), among others. As a whole, these data demonstrate a serious commitment of the cell machinery after cisplatin-induced cellular damage. About 20% of the cell death corresponds to apoptosis, as was showed by the present assays. However, most of the cells are eliminated by the action of the drug in various levels of the metabolism and maintenance of cell integrity, due to the elevated degree of cisplatin citotoxicity, as demonstrated in cell survival tests.
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Bunkenburg, Alexander. "Expression refinement." Thesis, University of Glasgow, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.360175.

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Santos, Priscila Karla Ferreira dos. "Perfil da expressão gênica de larvas de Tetrapedia diversipes (Hymenoptera: Apidae) em diapausa." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/41/41131/tde-29032016-135049/.

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A diapausa é um fenômeno amplamente presente nos artrópodes e é considerada como primordial para o sucesso evolutivo da Classe Insecta, pois possibilita a sobrevivência em condições adversas, como estações frias e secas. Sabe-se que durante a diapausa ocorre o silenciamento de muitos genes e que outros são unicamente expressos nesta fase. Embora existam evidências de que o processo da diapausa tenha se mantido conservado durante a evolução das espécies, ainda há lacunas no conhecimento sobre o nível de conservação dos padrões metabólicos. Um bom modelo para se estudar a diapausa é Tetrapedia diversipes, uma espécie bivoltina de abelha solitária. Os indivíduos que nascem na primeira geração seguem o desenvolvimento desde ovo até adulto em tempo bem menor do que aqueles que nascem na segunda geração; estes retardam o desenvolvimento na fase larval. Além disso, essa espécie é de fácil obtenção no seu ambiente natural, pois apresenta alta taxa de nidificação em ninhos-armadilha. O objetivo deste trabalho foi comparar o perfil de expressão de genes entre as larvas da 1ª geração (que não entram em diapausa), larvas da 2ª geração (que entrariam em diapausa) e das larvas em diapausa. Foram identificados 196 genes diferencialmente expressos, destes 87 foram anotados. Muitos destes genes já foram descritos na literatura como relacionados à diapausa em outras espécies, no entanto, o padrão de expressão não é conservado. Os genes aqui identificados foram divididos em cinco grupos: relacionados à desintoxicação celular, cutícula e citoesqueleto, metabolismo de lipídeos e esteróis, ciclo celular e outros genes relacionados à diapausa
The diapause is broadly distributed among the arthropods and has had an important role for the evolutionary success of the Class Insecta, mainly because this process permits insects to explore adverse conditions, such as cold and dry seasons. It is known that there are many genes being silenced and others being uniquely expressed during diapause. And although there are evidences that the diapause process has remained conserved during the evolution of species, it is still not clear how conserved are the metabolic patterns involved in this behavior. Tetrapedia diversipes is a solitary bee and a good model to study diapause. Individuals from the first generation do not enter in diapause and develop faster than individuals from the second generation, which enter in diapause during the winter. Moreover, this species is easy to capture in natural conditions due to the high rate of nesting in trap nests. The aim of this work was to compare the gene expression profile among non-diapause larvae from first and second generation (about to enter diapause) and larvae already in diapause, trough transcriptome data. One hundred ninety-four genes were identified as differentially expressed and 87 of them were annotated. Many of these genes have already been described as related to diapause in others species, but the expression pattern was not conserved. These genes were divided in five groups: related to cellular detoxification, cuticle and cytoskeleton, lipids and steroids metabolism, cell cycle and other genes related to diapause
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Pucci, Ferdinando. "Gene expression signature and pro-angiogenic function of Tie2-expressing macrophages." Thesis, Open University, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.527443.

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Robinson, Susan Rebecca. "Expression out of expressive physiognomy : physiognomic perception, aesthetic attribution, and art." Thesis, University of Edinburgh, 1998. http://hdl.handle.net/1842/21498.

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This thesis accepts the assumption underlying most theories of expression in art and music in recent decades, that the problem of expression in art is one most adequately handled as a problem of expressive attribution. However, the thesis rejects another assumption these same theories make, that the problem of accounting for descriptions of the form 'the music is sad' forms an isolated study. Instead, the thesis tackles the problem of accounting for expressive qualities attributed to art as part of a wider problem of aesthetic attribution. Chapters One and Two use Fank Sibley's classic distinction between aesthetic and nonaesthetic concepts as the departure point for a wider discussion of aesthetic attribution. Chapter One gives Sibley's discussion an unusually sympathetic reading, defending Sibley against an argument Roger Scruton raises against Sibley's view in the early part of Art and Imagination. Having made the most sympathetic case possible for Sibley's theory, Chapters Two through Five launch into a wider enquiry into the nature of aesthetic perception and aesthetic judgement. In Chapter Two, a final concession is made to Sibley's views when it is suggested that aesthetic judgements employing Sibley's taste concepts constitute strongly perceptual judgements: judgements formed in the course of perception as opposed to judgements reflecting upon the data of perception. Chapter Three continues the enquiry into the nature of aesthetic perception by examining the view expressed sometimes in the writings of Virgil C. Aldrich, that aesthetic awareness amounts to the operation of a distinctive mode of perception, one excluding a physical object awareness of things. The evidence Aldrich provides for his view is examined, and Aldrich's account of representational perception is compared and contrasted with Richard Wollheim's better-known view.
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Books on the topic "Expression"

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Naoẏāja, Āhamada. Expression. McMinnville, Or: A.K.M. Safiullah, Ananta Prakashani, 1998.

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Karin, Michael, ed. Gene Expression. Boston, MA: Birkhäuser Boston, 1993. http://dx.doi.org/10.1007/978-1-4684-6811-3.

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Barfety, M. Expression orale. [Paris]: CLE International, 2010.

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Barfety, M. Expression orale. [Paris]: CLE International, 2009.

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Connolly, Anne-Marie. Libre expression. Montréal, Qué: Guérin, 1992.

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Midori. Musical expression. New York: Macmillan/McGraw-Hill, 1995.

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A, Bosmajian H., ed. Freedomof expression. New York: Neal-Schuman, 1987.

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Bernard, Olivier. Expression professionnelle. Beaune: Ministère de l'éducation nationale, Centre d'éducation permanente et de promotion sociale, 1986.

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Thiébault, Jean-Yves. Expression écrite. Paris: Vuibert, 2003.

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Brzozowska-Zburzyńska, Beata, and Małgorzata Posturzyńska-Bosko. Expression indexicale. Lublin: Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej, 2011.

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Book chapters on the topic "Expression"

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Argenton, Alberto. "Expression and expressive qualities." In Art and Expression, edited by Ian Verstegen, 3–39. New York : Routledge, 2019.: Routledge, 2019. http://dx.doi.org/10.4324/9780429468704-1.

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Weber, Andreas. "Expression." In Biosemiotics, 25–31. Dordrecht: Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-024-0832-4_3.

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Burton, S. H. "Expression." In Work Out English GCSE, 4–38. London: Macmillan Education UK, 1987. http://dx.doi.org/10.1007/978-1-349-09446-2_2.

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Nahler, Gerhard. "expression." In Dictionary of Pharmaceutical Medicine, 72. Vienna: Springer Vienna, 2009. http://dx.doi.org/10.1007/978-3-211-89836-9_540.

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Burton, S. H., and J. A. Humphries. "Expression." In English GCSE Key Stage 4, 130–64. London: Macmillan Education UK, 1993. http://dx.doi.org/10.1007/978-1-349-13836-4_13.

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Weik, Martin H. "expression." In Computer Science and Communications Dictionary, 554. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_6602.

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Ruddick, Margie. "Expression." In Wild By Design, 187–223. Washington, DC: Island Press/Center for Resource Economics, 2016. http://dx.doi.org/10.5822/978-1-61091-599-1_7.

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Lull, James. "Expression." In Evolutionary Communication, 57–77. New York, NY : Routledge, 2020.: Routledge, 2019. http://dx.doi.org/10.4324/9780429456879-4.

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Lennon, Kathleen. "Expression." In Wittgenstein and Merleau-Ponty, 31–48. 1 [edition]. | New York : Routledge, 2017. | Series: Routledge research in phenomenlogy ; 5: Routledge, 2017. http://dx.doi.org/10.4324/9781315754840-3.

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Gooch, Jan W. "Expression." In Encyclopedic Dictionary of Polymers, 285. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_4668.

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Conference papers on the topic "Expression"

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He, Dongjian, Jinglei Tang, and Xu Jiing. "Facial Expression Synthesis Based on Expressional Feature Space and Expression Decomposition." In 2008 International Conference on Computer Science and Software Engineering. IEEE, 2008. http://dx.doi.org/10.1109/csse.2008.1010.

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Zhang, Yan, Xiangyang Feng, and Ming Zhu. "Study on Emotional State Change based on Dynamic Expression Similarity." In 4th International Conference on Machine Learning & Applications (CMLA 2022). Academy and Industry Research Collaboration Center (AIRCC), 2022. http://dx.doi.org/10.5121/csit.2022.121103.

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Facial expressions can express different emotions. Similar facial expressions usually correspond to the same emotions, and the changing process of emotional states is reflected in the dynamic changes of facial expressions. However, existing studies mainly focus on instantaneous emotional states, which cannot reflect the intensity of emotions. This paper proposes a method to study the process of emotional change based on dynamic expression similarity, which can assess not only the change of emotional state but also the change of emotional intensity. First, the features of dynamic expressions are extracted based on the VGG16 network model. Then, the cosine similarity of the expression features is calculated to match the corresponding emotions. At the same time, the expression intensity of each frame is calculated to evaluate the change in emotional intensity. The experimental results show that the similarity calculated in this paper is increased by 9.7% on average, which can be used for the study of emotional states.
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Liu, Zicheng, Ying Shan, and Zhengyou Zhang. "Expressive expression mapping with ratio images." In the 28th annual conference. New York, New York, USA: ACM Press, 2001. http://dx.doi.org/10.1145/383259.383289.

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Ocegueda, Omar, Tianhong Fang, Shishir K. Shah, and Ioannis A. Kakadiaris. "Expressive Maps for 3D Facial Expression Recognition." In 2011 IEEE International Conference on Computer Vision Workshops (ICCV Workshops). IEEE, 2011. http://dx.doi.org/10.1109/iccvw.2011.6130397.

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Anbarjafari, Gholamreza, and Alvo Aabloo. "Expression Recognition by Using Facial and Vocal Expressions." In Proceedings of the Third Workshop on Vision and Language. Stroudsburg, PA, USA: Dublin City University and the Association for Computational Linguistics, 2014. http://dx.doi.org/10.3115/v1/w14-5415.

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Tang, Hao, Wei Wang, Songsong Wu, Xinya Chen, Dan Xu, Nicu Sebe, and Yan Yan. "Expression Conditional Gan for Facial Expression-to-Expression Translation." In 2019 IEEE International Conference on Image Processing (ICIP). IEEE, 2019. http://dx.doi.org/10.1109/icip.2019.8803654.

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Valizadeh, Mojtaba, Philip John Gorinski, Ignacio Iacobacci, and Martin Berger. "Correct and Optimal: The Regular Expression Inference Challenge." In Thirty-Third International Joint Conference on Artificial Intelligence {IJCAI-24}. California: International Joint Conferences on Artificial Intelligence Organization, 2024. http://dx.doi.org/10.24963/ijcai.2024/717.

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We propose regular expression inference (REI) as a challenge for code/language modelling, and the wider machine learning community. REI is a supervised machine learning (ML) and program optimisation task, and poses the problem of finding minimal regular expressions from examples: Given two finite sets of strings P and N and a cost function cost(·), the task is to generate an expression r that accepts all strings in P and rejects all strings in N , while no other such expression r′ exists with cost(r′) < cost(r). REI has advantages as a challenge problem: (i) regular expressions are well-known, widely used, and a natural idealisation of code; (ii) REI’s asymptotic worst-case complexity is well understood; (iii) REI has a small number of easy to understand parameters (e.g. P or N cardinality, string lengths of examples, or the cost function); this lets us easily finetune REI-hardness; (iv) REI, with its emphasis on optimisation, is an unsolved problem for deep learning based ML. Recently, an REI solver was implemented on GPUs, using program synthesis techniques. This enabled, for the first time, fast generation of minimal regular expressions for complex REI instances. Building on this advance, we generate and publish the first large-scale datasets for REI, and devise and evaluate several initial heuristic and machine learning baselines. We invite the community to participate and explore ML methods that learn to solve REI problems. We believe that progress in REI directly translates to progress in code/language modelling.
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Borgida, Alexander, David Toman, and Grant Weddell. "Concerning Referring Expressions in Query Answers." In Twenty-Sixth International Joint Conference on Artificial Intelligence. California: International Joint Conferences on Artificial Intelligence Organization, 2017. http://dx.doi.org/10.24963/ijcai.2017/668.

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A referring expression in linguistics is a noun phrase that identifies individuals to listeners. In the context of a query over a first order knowledge base, referring expressions to answers are usually constant symbols. This paper motivates and initiates the exploration of allowing more general formulas, called singular referring expressions, to replace constants in this role. Referring expression types play a novel and significant role in analyzing the properties of candidate expressions.
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Anam, ASM Iftekhar, Shahinur Alam, and Mohammed Yeasin. "Expression." In the 16th international ACM SIGACCESS conference. New York, New York, USA: ACM Press, 2014. http://dx.doi.org/10.1145/2661334.2661348.

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Halambi, Ashok, Peter Grun, Vijay Ganesh, Asheesh Khare, Nikil Dutt, and Alex Nicolau. "EXPRESSION." In the conference. New York, New York, USA: ACM Press, 1999. http://dx.doi.org/10.1145/307418.307549.

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Reports on the topic "Expression"

1

Pulst, Stefan M. Expression Profiling of Cell Lines Expressing Regulated NP2 Transcripts. Fort Belvoir, VA: Defense Technical Information Center, September 2004. http://dx.doi.org/10.21236/ada436907.

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Pulst, Stefan M. Expression Profiling of Cell Lines Expressing Regulated NF2 Transcripts. Fort Belvoir, VA: Defense Technical Information Center, September 2002. http://dx.doi.org/10.21236/ada411281.

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Pulst, Stefan M. Expression Profiling of Cell Lines Expressing Regulated NF2 Transcripts. Fort Belvoir, VA: Defense Technical Information Center, September 2003. http://dx.doi.org/10.21236/ada420961.

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Lupu, Ruth. Expression and Significance of CYR61 Expression in Breast Cancer Tumor Specimens. Fort Belvoir, VA: Defense Technical Information Center, September 2001. http://dx.doi.org/10.21236/ada400952.

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Nelson, Peter S. The Prostate Expression Database. Fort Belvoir, VA: Defense Technical Information Center, April 2001. http://dx.doi.org/10.21236/ada395854.

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Nelson, Peter S. The Prostate Expression Database. Fort Belvoir, VA: Defense Technical Information Center, April 2002. http://dx.doi.org/10.21236/ada406900.

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Kavasseri, R., ed. Distributed Management Expression MIB. RFC Editor, October 2000. http://dx.doi.org/10.17487/rfc2982.

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Ganju-Krishan, Awtar. Multiparametric Evaluation of Marker Expression. Fort Belvoir, VA: Defense Technical Information Center, June 2001. http://dx.doi.org/10.21236/ada395868.

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Ganju-Krishan, Awtar, and Wahrdad Nadji. Multiparametric Evaluation of Marker Expression. Fort Belvoir, VA: Defense Technical Information Center, June 2002. http://dx.doi.org/10.21236/ada407422.

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Cant, D., and P. Miller. Seismic expression 5: Sable Subbasin. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1991. http://dx.doi.org/10.4095/210686.

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