Editorial Material
Biochemistry & Molecular Biology
Heidi Roth, Mathias F. Wernet
Summary: The molecular genetic study of Drosophila color vision circuitry has shown that pathways previously categorized as chromatic versus achromatic actually converge. Dm8 cells with amacrine-like characteristics receive direct and indirect inputs with different spectral sensitivity tuning, forming the second stage of color opponent processing.
Article
Multidisciplinary Sciences
Lu-Yi Wang, Devi Stuart-Fox, Geoff Walker, Nicholas W. Roberts, Amanda M. Franklin
Summary: The sensitivity of animal photoreceptors to different wavelengths of light affects the visual contrast of objects in the environment. This study investigates the potential advantage of long wavelength sensitivity by modeling the visual contrast of jewel beetle colors against flowers and leaves in insect visual systems. The results suggest that red sensitivity can enhance the visual discrimination of insect colors against vegetation.
SCIENTIFIC REPORTS
(2022)
Article
Biology
Naomi F. Green, Emily Guevara, Daniel C. Osorio, John A. Endler, N. Justin Marshall, Misha Vorobyev, Karen L. Cheney
Summary: This study explores the threshold changes in color discrimination for fish species and highlights the importance of considering different factors in color vision models. It provides valuable insights into the nonlinearities of photoreceptors and post-receptoral mechanisms in fish.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2022)
Article
Computer Science, Information Systems
B. Veerasamy, S. Annadurai
Summary: Motion estimation in video processing is crucial for video compression. A hybrid statistically effective method is proposed in this paper, utilizing hexagonal search pattern and teaching-learning optimization algorithm to improve efficiency and reduce computational complexity. Image quality is confirmed through 3D reconstruction, showing higher precision compared to existing methods.
MULTIMEDIA SYSTEMS
(2021)
Article
Multidisciplinary Sciences
Aryaman Taore, Gabriel Lobo, Philip R. Turnbull, Steven C. Dakin
Summary: This study develops a simple objective test of functional color vision based on eye movements and moving patterns. By analyzing eye movements, it can diagnose and assess the severity of protanopia and deuteranopia.
SCIENTIFIC REPORTS
(2022)
Article
Anesthesiology
Victoria Laxton, Frances A. Maratos, David W. Hewson, Andrew Baird, Edward J. N. Stupple
Summary: This study used experimental psychology methods to examine the potential benefits of colour-coded compartmentalised trays compared to conventional trays in a visual search task. The results showed that colour-coded compartmentalised trays facilitated faster error detection and reduced fixation on drug lists, thereby reducing cognitive load.
BRITISH JOURNAL OF ANAESTHESIA
(2023)
Article
Acoustics
Robert A. Lutfi, Torben Pastore, Briana Rodriguez, William A. Yost, Jungmee Lee
Summary: A molecular analysis was conducted to explore two explanations for individual differences in listener performance. The results suggest that errors in listener performance are primarily influenced by shared speech features between the target talker and other talkers, while remaining errors are largely independent of these features. This study provides important insights into understanding the factors contributing to individual differences in listener performance.
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2022)
Article
Multidisciplinary Sciences
Karola Schlegelmilch, Annie E. Wertz
Summary: This study investigates the impact of image characteristics on 8-month-olds' search performance through a gaze contingent eye-tracking search task. The results show that larger target-background differences and low pictorial depth in stimulus backgrounds predict better detection performance. Furthermore, category membership only affects search performance if supported by luminance contrast.
Article
Physics, Applied
Caglar Kutlu, Arjan F. van Loo, Sergey Uchaikin, Andrei N. Matlashov, Doyu Lee, Seonjeong Oh, Jinsu Kim, Woohyun Chung, Yasunobu Nakamura, Yannis K. Semertzidis
Summary: This paper reports on the operation of a flux-driven Josephson parametric amplifier (JPA) operating at around 2.3 GHz with added noise approaching the quantum limit. By operating the JPA at a gain of 19 dB and cascading it with two cryogenic amplifiers operating at 4 K, noise temperatures as low as 120 mK were achieved for the whole signal detection chain.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
(2021)
Article
Neurosciences
Frederick A. A. Kingdom, Philipp Woessner
Summary: In this study, the authors proposed a novel binocular summation model, which mediates binocular summation by computing the sum and difference of monocular signals from the two eyes. Experimental results showed that this model performed as well as traditional models, indicating the importance of independently gain-controlled S+ and S- signals in various binocular behaviors.
Article
Computer Science, Information Systems
Lin Zhou, Lin Bai, Alfred O. Hero
Summary: In this paper, we study the problem of simultaneous search for multiple targets and derive the resolution limits of non-adaptive querying procedures using the 20 questions estimation framework. We consider achievable resolution and minimal achievable resolution as the performance criteria. By using tools from finite blocklength information theory, we provide non-asymptotic and second-order asymptotic bounds on the minimal achievable resolution.
IEEE TRANSACTIONS ON INFORMATION THEORY
(2022)
Article
Neurosciences
Sanni A. Silvasti, Janne K. Valkonen, Ossi Nokelainen
Summary: The study examines color discrimination in blue tits under different background conditions, demonstrating that color perception differs under different backgrounds. It cautions against using vision models to determine color discrimination in natural environments with colorful backgrounds, as this may lead to misleading interpretations of biological interactions.
Article
Engineering, Electrical & Electronic
Renke Kou, Chunping Wang, Qiang Fu, Ying Yu, Dongdong Zhang
Summary: In this study, a method for detecting small infrared targets is proposed by combining improved density peak global search and local contrast calculation. The experimental results demonstrate that the method can quickly and accurately detect small targets in the presence of severe background clutter and noise interference.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2022)
Article
Acoustics
Sarah Attia, Andrew King, Leo Varnet, Emmanuel Ponsot, Christian Lorenzi
Summary: This study found that different sources of internal variability are involved in AM and FM detection at low audio frequencies.
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2021)
Article
Engineering, Electrical & Electronic
Wenqing Niu, Hui Chen, Fangchen Hu, Jianyang Shi, Yinaer Ha, Guoqiang Li, Zhixue He, Shaohua Yu, Nan Chi
Summary: This paper investigates the performance of Tomlinson-Harashima precoding (THP) in bandwidth-limited underwater visible light communication (UVLC) system and proposes a neural network-based THP. Experimental results demonstrate the feasibility of the proposed method in achieving high data rates and transmission performance.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Behavioral Sciences
Miguel A. Rodriguez-Girones, Michelle Maldonado
Article
Evolutionary Biology
Francismeire Jane Telles, Cristian Luan Klunk, Fabiano Rodrigo da Maia, Vinicius Lourenco Garcia de Brito, Isabela Galarda Varassin
BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2020)
Article
Ecology
Vinicius Lourenco Garcia de Brito, Fernanda Barao Leite, Francismeire Jane Telles, Leonardo Re Jorge, Marlies Sazima
Summary: The study found that stamens and petals of heterantherous species play important roles in attracting pollination bees, with bees preferring flowers with petals. Through color visual models and field experiments, the discrimination ability of bees between stamens and petals was confirmed, further revealing some characteristics of bee choice behavior.
ARTHROPOD-PLANT INTERACTIONS
(2021)
Article
Plant Sciences
Luan Salles Passos, Francismeire Jane Telles, Renato Goldenberg, Fabiano Rodrigo Maia
Summary: Autonomous selfing, known as pollen tube shower, was observed in Bertolonia plants with poricidal anthers. The movement of flower parts during post-anthesis events led to the transient absence of herkogamy, promoting delayed selfing. This mechanism ensures reproductive success and reproductive assurance for flowers that have not been pollinated.
BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
(2022)
Article
Entomology
Pedro R. Antunes, Francismeire J. Telles, Miguel A. Rodriguez-Girones, Solange C. Augusto
Summary: The study showed that Centris analis are flexible learners, relying mainly on spatial and visual information, with odor only used as a secondary cue for nest identification.
ECOLOGICAL ENTOMOLOGY
(2021)
Article
Ecology
Jurene E. Kemp, Francismeire J. Telles, Mario Vallejo-Marin
Summary: This study examined Cyanella hyacinthoides in the Cape Floristic Region of South Africa and found that the presence of easily accessible floral resources reduces bee visitation rates to buzz-pollinated plants. Visitation rates were influenced by the relative abundance of flowers with accessible resources and were strongly associated with petal color, indicating the importance of flower color in mediating interactions. Buzz-pollinated plants may have a competitive disadvantage when competing with other species that offer easily accessible pollen sources and share similar floral signals.
ECOLOGY AND EVOLUTION
(2022)
Article
Plant Sciences
Luan Salles Passos, Francismeire Jane Telles, Renato Goldenberg, Erika Amano, Fabiano Rodrigo Maia
Summary: In our study, we found that the stamen appendages of Huberia insignis have no effect on pollination, suggesting that these appendages are vestigial.
Article
Plant Sciences
Alessandra Ribeiro Pinto, Marina Muniz Moreira, Isis Paglia, Miguel A. Rodriguez-Girones, Leandro Freitas
Summary: The study found high intra-individual floral variation in a distylous species, particularly with high intra-floral integration. The pollination-mechanics traits (PMT) showed higher integration compared to attraction traits (AT) and the whole flower, possibly indicating functional structuring through intra-floral modularity related to pollination accuracy.
PLANT SYSTEMATICS AND EVOLUTION
(2022)
Article
Plant Sciences
Luan Salles Passos, Renato Goldenberg, Lucas F. Bacci, Francismeire Jane Telles, Fabiano Rodrigo Maia
Summary: Previous molecular phylogenetic analyses showed a strong correlation between species distribution and floral traits in the endemic genus Bertolonia in the Brazilian Atlantic Forest. The genus is divided into three clades based on their distribution. A rare delayed selfing mechanism, pollen tube shower (PTS), was found in one clade, but its prevalence in other clades was unknown. In this study, we investigated two other species and examined herbarium specimens for evidence of floral traits related to autonomous selfing mechanisms. We found that both species produced seeds through PTS and observed the occurrence of PTS in other species as well. Taxonomic data indicated the absence of herkogamy but the presence of post-anthesis petal closure and corolla persistence, all traits associated with PTS. This study provides empirical evidence and descriptions of floral traits that indicate the predominance of autogamy in the genus Bertolonia, which is uncommon in the family Melastomataceae.
PLANT SYSTEMATICS AND EVOLUTION
(2022)
Article
Plant Sciences
Renata Trevizan, Ana Paula Souza Caetano, Vinicius L. G. Brito, Paulo Eugenio Oliveira, Francismeire Jane Telles
Summary: Based on our study of 16 Melastomataceae species, we found that stamen heteromorphism in pollen flowers is associated with functional and morphological differences at the pollen grain level. Pollinating anthers are larger and produce more and higher-quality pollen grains, while the feeding anthers are smaller. In addition, there are differences in pollen exine ornamentation in some species. Overall, our findings support the division of labour hypothesis.
Article
Plant Sciences
Alessandra Ribeiro Pinto, Marina Muniz Moreira, Miguel A. Rodriguez-Girones, Leandro Freitas
Summary: Intraspecific floral variations can impact the generalization and efficacy of pollinators, particularly in heterostylous plants like Psychotria nuda. Corolla length in distylous species may influence the reproductive success of different morphs, with large corollas potentially compensating for imperfect reciprocal herkogamy.
ACTA BOTANICA BRASILICA
(2021)
Article
Plant Sciences
Joao Marcelo Robazzi Bignelli Valente Aguiar, Artur Antunes Maciel, Pamela Cristina Santana, Francismeire Jane Telles, Pedro Joaquim Bergamo, Paulo Eugenio Oliveira, Vinicius Lourenco Garcia Brito
FRONTIERS IN PLANT SCIENCE
(2020)
Article
Ecology
Miguel Angel Rodriguez-Girones, Francismeire Jane Telles
ECOLOGY AND EVOLUTION
(2020)
Article
Evolutionary Biology
Francismeire Jane Telles, Francisco G. Gonzalvez, Miguel Angel Rodriguez-Girones, Leandro Freitas
BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2019)