1,038 research outputs found
A dual-band microstrip patch antenna for 2.45/5-GHz WLAN applications
No full textA microstrip transmit patch antenna with harmonics suppression property has been designed for the 2.45/5-GHz WLAN bands. Patch antennas usually have narrow bandwidths and the 5-GHz WLAN band extends from 5.15 to 5.8 GHz, which makes the design challenging. The proposed antenna has two cuts at two of its edges in order to achieve a wide bandwidth for the 5-GHz WLAN band. In addition, a microstrip matching circuit has been implemented to improve the 2.45-GHz low-band response. A low-cost and easily available FR4 substrate has been used for the design and fabrication of the antenna. The presented antenna offers harmonic supression at 4.9 and 7.35 GHz to reduce interference with other receivers. Design process involved extensive electromagnetic simulations. Measured design parameters of the proposed antenna are in good agreement with the simulations
Controlling Nutritional Status score: A novel prognostic marker for patients with community-acquired pneumonia
No full textYILDIRIM, BIRDAL/0000-0002-6626-2180WOS: 000539054400001Objective: We aimed to investigate the prevalence and prognostic value of malnutrition assessed by Controlling Nutritional Status score in community-acquired pneumonia patients. Methods: All adult patients admitted to our emergency department and hospitalized for community-acquired pneumonia were prospectively followed-up until hospital discharge or death. Nutritional status was assessed with the Controlling Nutritional Status score, which is based on serum albumin levels, total cholesterol levels, and lymphocyte counts. The primary study endpoint was complicated hospital course defined as need for mechanical ventilation, mortality, or intensive care unit admission. Results: Three hundred and five patients (mean age 68.6 +/- 11.2 years and 51.8% female) were enrolled, and 40 patients (13.1%) had complicated hospitalizations. Older patients, patients with more comorbidities, and patients with higher Controlling Nutritional Status scores on admission were tended to have a higher rate of complications during their hospitalization. Multivariate analysis showed that older age (odds ratio 2.55, 95% confidence interval 1.41-4.64, p 3 (odds ratio 1.27, 95% confidence interval 0.524-3.725, p = 0.035), and Controlling Nutritional Status score > 4 (odds ratio 2.23, 95% confidence interval 1.129-3.657, p = 0.001) were independent predictors of complicated hospitalizations. Conclusion: Malnutrition determined by Controlling Nutritional Status score predicts complications in hospitalized patients with community-acquired pneumonia
An Exploratory Analysis of the Neural Correlates of Human-Robot Interactions With Functional Near Infrared Spectroscopy
No full textFunctional near infrared spectroscopy (fNIRS) has been gaining increasing interest as a practical mobile functional brain imaging technology for understanding the neural correlates of social cognition and emotional processing in the human prefrontal cortex (PFC). Considering the cognitive complexity of human-robot interactions, the aim of this study was to explore the neural correlates of emotional processing of congruent and incongruent pairs of human and robot audio-visual stimuli in the human PFC with fNIRS methodology. Hemodynamic responses from the PFC region of 29 subjects were recorded with fNIRS during an experimental paradigm which consisted of auditory and visual presentation of human and robot stimuli. Distinct neural responses to human and robot stimuli were detected at the dorsolateral prefrontal cortex (DLPFC) and orbitofrontal cortex (OFC) regions. Presentation of robot voice elicited significantly less hemodynamic response than presentation of human voice in a left OFC channel. Meanwhile, processing of human faces elicited significantly higher hemodynamic activity when compared to processing of robot faces in two left DLPFC channels and a left OFC channel. Significant correlation between the hemodynamic and behavioral responses for the face-voice mismatch effect was found in the left OFC. Our results highlight the potential of fNIRS for unraveling the neural processing of human and robot audio-visual stimuli, which might enable optimization of social robot designs and contribute to elucidation of the neural processing of human and robot stimuli in the PFC in naturalistic conditions. Copyright © 2022 Yorgancigil, Yildirim, Urgen and Erdogan
Uma Romancista negra intérprete da nação:: Ruth Guimarães em “Água Funda”
Get PDFRuth Guimarães (1920-2014) was an intellectual and writer interpreter of Brazil. In his only novel, "Água funda" (1946) mainly reflected national time as a matrix of coloniality. In the first part of this article, I present the trajectory of the black woman author and the consequences of the erasure she suffered for her contemporary reception. In the second, I analyze some aspects of the novel, highlighting the narrative elaboration as the driver of an Afro-diasporic inscription that raises new interpretations about the nation.Ruth Guimarães (1920-2014) foi uma intelectual e escritora intérprete do Brasil. Em seu único romance, “Água funda” (1946) refletiu principalmente o tempo nacional como uma matriz da colonialidade. Na primeira parte deste artigo, apresento a trajetória da autora negra e as consequências do apagamento que sofreu para sua recepção contemporânea. Na segunda, analiso alguns aspectos do romance, destacando a elaboração narrativa como condutora de uma inscrição afro-diaspórica que suscita novas interpretações acerca da nação
Influence of Emotional Outcome Valence on Sense of Agency in a Free Choice Task
No full textSense of agency (SoA) is a subjective feeling of being the author of one's voluntary actions and their outcomes. Several studies demonstrate that SoA is modulated when the outcomes are affective. However, the research on the influence of emotional outcomes on SoA have yielded somewhat contradictory results. Some studies suggest that the SoA is increased when the outcomes are positive while others conversely suggest that it is diminished compared to negative outcomes, specifically in a moral or social context. This study examined the influence of outcome valence on SoA with a temporal binding paradigm, by manipulating emotional valence and outcome delays. Participants chose between two actions with key presses which randomly produced one of positive (happy), negative (sad) or neutral emoticons after varying delays and judged the interval between their key press and the outcome. The results revealed a significant interaction between outcome valence and delay, which suggested that specifically at 500 ms of delay, perceived intervals were reliably shorter (i.e., stronger binding) between key presses and negative outcomes compared to positive outcomes. Our findings suggest that a negative valence might improve an individual's capacity for SoA when they are presented with an action choice and are unable to predict the outcomes in a social-emotional environment
Peucedanum guvenianum (Apiaceae), a new species from West Anatolia, Turkey
No full textPeucedanum guvenianum Yildirim & H.Duman is described as a species new to science. It is endemic to the West Anatolia region of Turkey. It is known from a single locality in Izmir Province. P. guvenianum shows similarities to P. longifolium, P. ruthenicum, and P. vourinense. Diagnostic morphological characters are discussed and compared with those of closely related taxa. It is easily distinguished from related species especially by its stem 130-220 cm tall, distinctly striate, densely branched from below the middle to upper part; basal leaves 28-40 cm long and 20-70 cm wide; bracts linear-lanceolate and erect; petals emarginate at apex; mericarp 7.2-14 x 4.3-8 mm, oblong to oblong-orbicular, +/- two times longer from pedicel.Scientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [113Z072]The authors are grateful to the curators of E, EGE, GAZI, HUB, and ISTE for access to Peucedanum materials for this study. We would especially like to thank Cem Cuhacioglu for his kind support and helpfulness during field studies for Peucedanum guvenianum. We wish to thank Funda Ozbek for technical help with anatomical preparations, studies on pollen grains, drawings of fruit sections, and the scanning electron microscopy. Also, the authors are indebted to the Scientific and Technological Research Council of Turkey (TUBITAK), under Project Number 113Z072, for financial support
Caracterização do Espaço Livre Público do Terminal Barra Funda, Município de São Paulo, SP:: Infraestrutura, Composição Florística e Percepção Ambiental
Get PDFThe rapid growth of the city is the result of population growth, and this brings about the commitment of the quantity and quality of its open spaces and green areas. This study aimed to report the perception of passersby on the public space Barra Funda Terminal, as well as its plant diversity. To collect data in that space interviews were conducted with a semi-structured and quantitative and qualitative surveys of existing infrastructure and vegetation. The script consisted of qualitative questions that were recorded and transcribed by the author and quantitative questions, using assertive and Likert scale to obtain answers. They identified 65 individuals, distributed in 7 plants and belonging to 7 species botanical families. The public space around the Terminal Barra Funda is perceived in different ways among the people passing by this location. A party perceives this site as green space area and with good cleaning while others realize how bad location without structure and maintenance, and lack of security.O crescimento acelerado da cidade é resultante do aumento populacional, e traz como consequência o comprometimento da quantidade e qualidade de seus espaços livres e áreas verdes. Este trabalho teve como objetivo relatar a percepção de passantes em relação ao espaço público do Terminal Barra Funda, assim como sua diversidade vegetal. Para a coleta de dados, no referido espaço, foram realizadas entrevistas, com um roteiro semi-estruturado e levantamentos quanti-qualitativos da infraestrutura e vegetação existentes. O roteiro consistiu em perguntas qualitativas que foram gravadas e transcritas pela autora e perguntas quantitativas, utilizando-se assertivas e a escala likert para a obtenção de respostas. Na análise da vegetação, foram identificados 65 indivíduos, distribuídos em 7 espécies vegetais e pertencentes a 7 famílias botânicas. O espaço público no entorno do Terminal Barra Funda é percebido de maneira divergente entre a população que passa por este local. Uma parte percebe este local como espaço de área verde e co
Kedi ve Köpek Dokularının Dört Farklı Çözelti ile Tespiti ve Bu Çözeltilerin Histopatolojik Görünümlerine Etkileri Açısından Karşılaştırılması
No full textKEDİ VE KÖPEK DOKULARININ DÖRT FARKLI ÇÖZELTİ İLE TESPİTİ VE BU ÇÖZELTİLERİN HİSTOPATOLOJİK GÖRÜNÜMLERE ETKİLERİ AÇISINDAN KARŞILASTIRILMASI
Merve MORAL1, Hazal ÖZTÜRK2, Funda YILDIRIM2
1İstanbul Üniversitesi Veteriner Fakültesi, 5. Sınıf Lisans Öğrencisi
2İstanbul Üniversitesi Veteriner Fakültesi, Patoloji Anabilim Dalı
Tespit işlemi, histopatolojik olarak incelenmek istenen doku örneklerini stabilize ederek o anki durumlarının görüntülenmesini sağlar. Aynı zamanda; dokunun otolitik enzimler ve mikroorganizmalar aracılığı ile bozulmasını ve morfolojik özelliklerini kaybetmesini önler, şekil ve hacim açısından dokuyu sabitler ve daha sonraki süreçlerde gerekecek başka inceleme yöntemleri için dokuyu muhafaza eder.
Bu çalışmada farklı fiksatif çözeltilerin doku tespitindeki güvenilirliklerini ve aralarındaki farklılıkları ortaya koymak amaçlandı. Bunun için; %4’lük Formaldehit, %10’luk Formaldehit, Hollande ve Carnoy solüsyonları olmak üzere 4 farklı fiksatif tercih edildi. Çalışmada, kedi ve köpek nekropsilerinden alınan 10`ar dalak ve böbrek doku örnekleri her solüsyon için belirtilen bekleme süresi dikkate alınarak bu 4 farklı solüsyonda tespit edildi. Ardından doku örnekleri rutin doku takip işlemlerinden geçirildi ve parafin bloklara gömüldü. Parafin bloklardan 3-4 m kalınlığında kesitler alındı. Kesitler hücrelerin sitoplazmik sınırları, boyanma yetenekleri, nükleer ve nükleolar detayları açısından ışık mikroskobunda incelendi.
Anahtar sözcükler: Doku Tespiti, Formaldehit, Hollande Çözeltisi, Carnoy Çözeltisi, kedi, köpe
Diálogos intertextuais e traços memorialísticos em A solidão mais funda, de Ângela Vilma
Get PDFABSTRACT: This article analyzes the poetic production of the book A solidão mais funda, by the author from Bahia Ângela Vilma, from the perspective that there are two movements in the work. In the first, there are poems that try to dialogue with canonical authors, such as Fernando Pessoa, Cecília Meireles, Vinícius de Moraes, Carlos Drummond de Andrade, Manuel Bandeira, among others. In the second, there is a memorialistic trace, heir above all from Herberto Sales, an author whose work the poet had read since her adolescence. For this, we use the concepts of remembrance and reminiscence of Walter Benjamin (1892-1940), according to which the writer's act of remembering comes not only from his recollection, but also articulates memory and creative imagination, which is also treated by Gaston Bachelard (1884-1962). Thus, the poet starts from recollections, consciously or unconsciously: sometimes reconfiguring them according to the imagination of the lyrical self, sometimes fictionalizing them, making the reader live again their subjectivities.RESUMO: O presente artigo analisa a produção poética do livro A solidão mais funda, da autora baiana Ângela Vilma, sob a perspectiva de que existem, na obra, dois movimentos. No primeiro, poemas que ensaiam dialogar com autores canônicos, como Fernando Pessoa, Cecília Meireles, Vinícius de Moraes, Carlos Drummond de Andrade, Manuel Bandeira, entre outros. No segundo, está presente o traço memorialístico, herdeiro sobretudo de Herberto Sales, autor cuja obra a poeta lia desde a adolescência. Para isso, valemo-nos dos conceitos de recordação e reminiscência de Walter Benjamim (1892-1940), segundo o qual, o ato de lembrar do escritor provém não só de sua rememoração, como também articula memória e imaginação criativa, que também é tratado Gaston Bachelard (1884-1962). Assim, a poeta parte de rememorações, consciente ou inconscientemente: ora reconfigurando-as segundo a imaginação do eu-lírico, ora ficcionalizando-as, fazendo o leitor reviver suas subjetividades.
 
The effect of temporal ordering in recognizing environmental sounds
No full textThis project investigates the effect of temporal shuffling in mechanical, human-originated and natural environmental sounds using behavioral and electrophysicological techniques
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