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https://read.qxmd.com/read/30875917/multi-vehicle-tracking-via-real-time-detection-probes-and-a-markov-decision-process-policy
#1
Yi Zou, Weiwei Zhang, Wendi Weng, Zhengyun Meng
Online multi-object tracking (MOT) has broad applications in time-critical video analysis scenarios such as advanced driver-assistance systems (ADASs) and autonomous driving. In this paper, the proposed system aims at tracking multiple vehicles in the front view of an onboard monocular camera. The vehicle detection probes are customized to generate high precision detection, which plays a basic role in the following tracking-by-detection method. A novel Siamese network with a spatial pyramid pooling (SPP) layer is applied to calculate pairwise appearance similarity...
March 15, 2019: Sensors
https://read.qxmd.com/read/30865701/deep-mapping-gentrification-in-a-large-canadian-city-using-deep-learning-and-google-street-view
#2
Lazar Ilic, M Sawada, Amaury Zarzelli
Gentrification is multidimensional and complex, but there is general agreement that visible changes to neighbourhoods are a clear manifestation of the process. Recent advances in computer vision and deep learning provide a unique opportunity to support automated mapping or 'deep mapping' of perceptual environmental attributes. We present a Siamese convolutional neural network (SCNN) that automatically detects gentrification-like visual changes in temporal sequences of Google Street View (GSV) images. Our SCNN achieves 95...
2019: PloS One
https://read.qxmd.com/read/30860021/forest-goers-and-multidrug-resistant-malaria-in-cambodia-an-ethnographic-study
#3
Melanie Bannister-Tyrrell, Charlotte Gryseels, Suon Sokha, Lim Dara, Noan Sereiboth, Nicola James, Boukheng Thavrin, Po Ly, Kheang Soy Ty, Koen Peeters Grietens, Siv Sovannaroth, Shunmay Yeung
Multidrug-resistant Plasmodium falciparum malaria on the Cambodia-Thailand border is associated with working in forested areas. Beyond broad recognition of "forest-going" as a risk factor for malaria, little is known about different forest-going populations in this region. In Oddar Meanchey Province in northwestern Cambodia, qualitative ethnographic research was conducted to gain an in-depth understanding of how different populations, mobility and livelihood patterns, and activities within the forest intersect with potentiate malaria risk and impact on the effectiveness of malaria control and elimination strategies...
March 11, 2019: American Journal of Tropical Medicine and Hygiene
https://read.qxmd.com/read/30823990/zmsmr4-a-novel-cyclin-dependent-kinase-inhibitor-cki-gene-in-maize-zea-mays-l-functions-as-a-key-player-in-plant-growth-development-and-tolerance-to-abiotic-stress
#4
Feifei Li, Licheng Wang, Zhengquan Zhang, Ting Li, Jiaojiao Feng, Shutu Xu, Renhe Zhang, Dongwei Guo, Jiquan Xue
Endoreduplication is a key cell cycle variant in the developing maize endosperm and has been associated with cell enlargement and dry matter accumulation. Therefore, identification of the key genes associated with endosperm development and endoreduplication would not only lay the groundwork for understanding the biological process of endoreduplication but also be important for maize breeding. Here, we identified 12 putative endoreduplication-related candidate genes as members of the Zea mays L. SIAMESE-RELATED (ZmSMR) gene family and denoted them ZmSMR1-ZmSMR12...
March 2019: Plant Science: An International Journal of Experimental Plant Biology
https://read.qxmd.com/read/30801828/conversations-with-ray-guillery-on-albinism-linking-siamese-cat-visual-pathway-connectivity-to-mouse-retinal-development
#5
Carol Mason
In albinism of all species, perturbed melanin biosynthesis in the eye leads to foveal hypoplasia, retinal ganglion cell misrouting, and, consequently, altered binocular vision. Here, written before he died, Ray Guillery chronicles his discovery of the aberrant circuitry from eye to brain in the Siamese cat. Ray's characterization of visual pathway anomalies in this temperature sensitive mutation of tyrosinase and thus melanin synthesis in domestic cats opened the exploration of albinism and simultaneously, a genetic approach to the organization of neural circuitry...
February 23, 2019: European Journal of Neuroscience
https://read.qxmd.com/read/30794168/exploiting-unlabeled-data-in-cnns-by-self-supervised-learning-to-rank
#6
Xialei Liu, Joost Van De Weijer, Andrew D Bagdanov
For many applications the collection of labeled data is expensive laborious. Exploitation of unlabeled data during training is thus a long pursued objective of machine learning. Self-supervised learning addresses this by positing an auxiliary task (different, but related to the supervised task) for which data is abundantly available. In this paper, we show how ranking can be used as a proxy task for some regression problems. As another contribution, we propose an efficient backpropagation technique for Siamese networks which prevents the redundant computation introduced by the multi-branch network architecture...
February 15, 2019: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://read.qxmd.com/read/30762546/quadruplet-network-with-one-shot-learning-for-fast-visual-object-tracking
#7
Xingping Dong, Jianbing Shen, Dongming Wu, Kan Guo, Xiaogang Jin, Fatih Porikli
In the same vein of discriminative one-shot learning, Siamese networks allow recognizing an object from a single exemplar with the same class label. However, they do not take advantage of the underlying structure of the data and the relationship among the multitude of samples as they only rely on pairs of instances for training. In this paper, we propose a new quadruplet deep network to examine the potential connections among the training instances, aiming to achieve a more powerful representation. We design a shared network with four branches that receive multi-tuple of instances as inputs and are connected by a novel loss function consisting of pair-loss and triplet-loss...
February 11, 2019: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://read.qxmd.com/read/30724583/psr-ippnw-switzerland-tackling-the-%C3%A2-radioactive-siamese-twins-%C3%A2-and-considering-human-rights-in-the-nuclear-age
#8
Andreas Nidecker, Claudio Knüsli
No abstract text is available yet for this article.
February 6, 2019: Medicine, Conflict, and Survival
https://read.qxmd.com/read/30716167/mocha-tyrosinase-variant-a-new-flavour-of-cat-coat-coloration
#9
Y Yu, R A Grahn, L A Lyons
A novel coloration named 'mocha' has been identified in the Burmese cat breed from Thailand. Tyrosinase (TYR) mutations are known to be associated with coat coloration in cats, such as the sable Burmese, the points of the Siamese and albino cats. Additionally, sable Burmese that produced mocha-colored cats had unexpected genotypes for TYR. Therefore, TYR was considered a candidate gene for mocha in cats. Sanger sequencing for genomic DNA revealed NC_018732.3:chromosome D1:45 898 609_45 898 771dup in exon 2 and intron 2 of TYR...
February 4, 2019: Animal Genetics
https://read.qxmd.com/read/30705074/a-tor-yak1-signaling-axis-controls-cell-cycle-meristem-activity-and-plant-growth-in-arabidopsis
#10
Adam Barrada, Meriem Djendli, Thierry Desnos, Raphael Mercier, Christophe Robaglia, Marie-Hélène Montané, Benoît Menand
TARGET OF RAPAMYCIN (TOR) is a conserved eukaryotic phosphatidylinositol-3-kinase-related kinase that plays a major role in regulating growth and metabolism in response to environment in plants. We performed a genetic screen for Arabidopsis ethylmethane sulfonate mutants resistant to the ATP-competitive TOR inhibitor AZD-8055 to identify new components of the plant TOR pathway. We found that loss-of-function mutants of the DYRK (dual specificity tyrosine phosphorylation regulated kinase)/YAK1 kinase are resistant to AZD-8055 and, reciprocally, that YAK1 overexpressors are hypersensitive to AZD-8055...
February 7, 2019: Development
https://read.qxmd.com/read/30691156/siamese-tracking-from-single-point-initialization
#11
Zheng Xu, Haibo Luo, Bin Hui, Zheng Chang
Recently, we have been concerned with locating and tracking vehicles in aerial videos. Vehicles in aerial videos usually have small sizes due to use of cameras from a remote distance. However, most of the current methods use a fixed bounding box region as the input of tracking. For the purpose of target locating and tracking in our system, detecting the contour of the target is utilized and can help with improving the accuracy of target tracking, because a shape-adaptive template segmented by object contour contains the most useful information and the least background for object tracking...
January 26, 2019: Sensors
https://read.qxmd.com/read/30659682/conservation-genomics-in-the-fight-to-help-the-recovery-of-the-critically-endangered-siamese-crocodile-crocodylus-siamensis
#12
Balaji Chattopadhyay, Kritika M Garg, Soo Yun Jing, Gabriel W Low, Jackson Frechette, Frank E Rheindt
Endangered species are often characterized by low genetic diversity and it is imperative for conservation efforts to incorporate the knowledge obtained from genetic studies for effective management. However, despite the promise of technological advances in sequencing, application of genome-wide data to endangered populations remains uncommon. In the present study we pursued a holistic conservation-genomic approach to inform a field-based management program of a Critically Endangered species, the Siamese crocodile Crocodylus siamensis...
January 19, 2019: Molecular Ecology
https://read.qxmd.com/read/30652235/mating-under-the-influence-male-siamese-fighting-fish-prefer-ee2-exposed-females
#13
Rebecca A Cram, Jaslynn M Lawrence, Teresa L Dzieweczynski
Countless pharmaceuticals and endocrine disrupting chemicals (EDCs) exist on the market with more added each day. Many of these compounds are not removed during the wastewater treatment process and enter bodies of water in their active form. EDCs are known to have physiological and behavioral effects in exposed organisms. Exposure to the synthetic estrogen 17α-ethinylestradiol (EE2), a common EDC found in birth control pills, has been found to lead to population collapse after only a few generations in some fish species...
January 16, 2019: Ecotoxicology
https://read.qxmd.com/read/30609084/three-species-of-aeromonas-a-dhakensis-a-hydrophila-and-a-jandaei-isolated-from-freshwater-crocodiles-crocodylus-siamensis-with-pneumonia-and-septicemia
#14
Wenyuan Pu, Guiying Guo, Nuo Yang, Qian Li, Feifei Yin, Peng Wang, Jiping Zheng, Jifeng Zeng
Hundreds of farmed Siamese crocodiles (Crocodylus siamensis) died during July 2016 at a farm in Wenchang, Hainan, China. In two necropsied crocodiles, we observed symptoms of dermatorrhagia, hepatomegaly and hepatic congestion. Pulmonitis was diagnosed by pulmonary congestion and pulmonary fibrinous exudate. Septicaemia was diagnosed by isolation of three Aeromonas species from blood and visceral tissues; A. dhakensis, A. hydrophila, and A. jandaei were identified by biochemical and molecular tests. We used a zebrafish model to determine the half-maximal lethal dose (LD50 ), and A...
January 4, 2019: Letters in Applied Microbiology
https://read.qxmd.com/read/30587229/coxiella-like-bacteria-in-fowl-ticks-from-thailand
#15
Wachareeporn Trinachartvanit, Simaporn Maneewong, Warissara Kaenkan, Pawiga Usananan, Visut Baimai, Arunee Ahantarig
BACKGROUND: Coxiella bacteria were identified from various tick species across the world. Q fever is a zoonotic disease caused by the bacteria Coxiella burnetii that most commonly infects a variety of mammals. Non-mammalian hosts, such as birds, have also been reported to be infected with the pathogenic form of "Candidatus Coxiella avium". This research increases the list of tick species that have been found with Coxiella-like bacteria in Thailand. METHODS: A total of 69 ticks were collected from 27 domestic fowl (Gallus gallus domesticus), 2 jungle fowl (Gallus gallus) and 3 Siamese firebacks (Lophura diardi) at 10 locations (provinces) in Thailand...
December 27, 2018: Parasites & Vectors
https://read.qxmd.com/read/30574340/fatal-pulmonary-hemorrhage-associated-with-vascular-amyloid-deposition-in-a-cat
#16
Dianne I Mawby, Jacqueline C Whittemore, Robert L Donnell
Case summary: An adult female spayed Siamese-cross cat of unknown age was presented for bilateral hemorrhagic otorrhea. Nasopharyngeal polyps were diagnosed by CT and biopsy; bilateral ventral bulla osteotomies were performed. Episodic epistaxis, otic hemorrhage and hemoptysis with respiratory distress progressed over 18 months. Systolic blood pressure, complete blood count, plasma biochemistries, prothrombin time, partial thromboplastin time and coagulation factor 12, 9 and 8 activities were normal...
July 2018: JFMS Open Reports
https://read.qxmd.com/read/30570160/hypoxia-induced-developmental-plasticity-of-larval-growth-gill-and-labyrinth-organ-morphometrics-in-two-anabantoid-fish-the-facultative-air-breather-siamese-fighting-fish-betta-splendens-and-the-obligate-air-breather-the-blue-gourami-trichopodus-trichopterus
#17
Jose Fernando Mendez-Sanchez, Warren W Burggren
Larval and juvenile air breathing fish may experience nocturnal and/or seasonal aquatic hypoxia. Yet, whether hypoxia induces respiratory developmental plasticity in larval air breathing fish is uncertain. This study predicted that larvae of two closely related anabantid fish-the facultative air breather the Siamese fighting fish (Betta splendens) and the obligate air breathing blue gourami (Trichopodus trichopterus)-show distinct differences in developmental changes in body, gill, and labyrinth morphology because of their differences in levels of dependency upon air breathing and habitat...
December 20, 2018: Journal of Morphology
https://read.qxmd.com/read/30558533/chromosome-map-of-the-siamese-cobra-did-partial-synteny-of-sex-chromosomes-in-the-amniote-represent-a-hypothetical-ancestral-super-sex-chromosome-or-random-distribution
#18
Worapong Singchat, Rebecca E O'Connor, Panupong Tawichasri, Aorarat Suntronpong, Siwapech Sillapaprayoon, Sunutcha Suntrarachun, Narongrit Muangmai, Sudarath Baicharoen, Surin Peyachoknagul, Lawan Chanhome, Darren Griffin, Kornsorn Srikulnath
BACKGROUND: Unlike the chromosome constitution of most snakes (2n=36), the cobra karyotype shows a diploid chromosome number of 38 with a highly heterochromatic W chromosome and a large morphologically different chromosome 2. To investigate the process of sex chromosome differentiation and evolution between cobras, most snakes, and other amniotes, we constructed a chromosome map of the Siamese cobra (Naja kaouthia) with 43 bacterial artificial chromosomes (BACs) derived from the chicken and zebra finch libraries using the fluorescence in situ hybridization (FISH) technique, and compared it with those of the chicken, the zebra finch, and other amniotes...
December 17, 2018: BMC Genomics
https://read.qxmd.com/read/30523744/effect-of-fadrozole-exposure-on-socioreproductive-behaviors-and-neurochemical-parameters-in-betta-splendens
#19
Hemagowri Venkatasubramanian, Velanganni Selvaraj, Mohankumar Ramasamy, Kirankumar Santhakumar
Induction of all-male population in Siamese fighting fish, Betta splendens, has potential application in ornamental fish trade. In addition, the sexually dimorphic nature of aggressive behavior exhibited by this species has made it into an emerging model for behavioral studies. Fadrozole, an aromatase inhibitor, which has been used widely in masculinization, has captivated us to use it in this study. Twenty one days postfertilization (dpf), B. splendens fry were subjected to discrete immersion treatment with various concentrations of fadrozole, and eventually, analyses of various socioreproductive behaviors and analyses of stress markers such as dopamine in brain samples, sex hormones, cortisol, and glucose in plasma samples were performed...
December 4, 2018: Zebrafish
https://read.qxmd.com/read/30513419/behavioral-consequences-of-dietary-exposure-to-crude-oil-extracts-in-the-siamese-fighting-fish-betta-splendens
#20
Naim M Bautista, Tanushri Pothini, Kelly Meng, Warren W Burggren
Uptake by fishes of crude oil and its polycyclic aromatic hydrocarbons (PAHs) components occurs via gills, dietary intake, or diffusion through the skin. Dietary exposure to crude oil and its components is environmentally relevant, and induces physiological and morphological disruptions in fish. However, the impacts of crude oil on fish social and reproductive behaviors and thus the possible influences on reproductive success are poorly understood. As a part of their intraspecific interactions, male Siamese fighting fish (Betta splendens) exhibit highly stereotypic behavioral and territorial displays...
November 29, 2018: Aquatic Toxicology
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