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https://www.readbyqxmd.com/read/29786924/reproductive-ecology-of-ocotea-catharinensis-an-endangered-tree-species
#1
Tiago Montagna, Juliano Zago da Silva, Tiago Georg Pickart, Maurício Sedrez Dos Reis
Ocotea catharinensis (Lauraceae) is an endangered tree species from the Brazilian Atlantic Rainforest. Currently, little is known about the reproductive ecology of this species. Aiming to propose conservation measures, we described aspects related to phenology, floral biology, pollination, seed dispersal, and mating system of O. catharinensis. We conducted phenological observations in 62 individuals for two years. In one reproductive event, we evaluated nectar production, stigmatic receptivity, and pollen viability...
May 22, 2018: Plant Biology
https://www.readbyqxmd.com/read/29786665/automated-field-of-view-illumination-and-recognition-algorithm-design-of-a-vision-system-for-pick-and-place-considering-colour-information-in-illumination-and-images
#2
Yibing Chen, Taiki Ogata, Tsuyoshi Ueyama, Toshiyuki Takada, Jun Ota
Machine vision is playing an increasingly important role in industrial applications, and the automated design of image recognition systems has been a subject of intense research. This study has proposed a system for automatically designing the field-of-view (FOV) of a camera, the illumination strength and the parameters in a recognition algorithm. We formulated the design problem as an optimisation problem and used an experiment based on a hierarchical algorithm to solve it. The evaluation experiments using translucent plastics objects showed that the use of the proposed system resulted in an effective solution with a wide FOV, recognition of all objects and 0...
May 22, 2018: Sensors
https://www.readbyqxmd.com/read/29786627/association-of-physical-and-technical-activities-with-partial-match-status-in-a-soccer-professional-team
#3
Wassim Moalla, Mohamed Saieffedin Fessi, Emna Makni, Alexandre Dellal, Cristoforo Filetti, Valter Di Salvo, Karim Chamari
Moalla, W, Fessi, MS, Makni, E, Dellal, A, Filetti, C, Di Salvo, V, and Chamari, K. Association of physical and technical activities with partial match status in a soccer professional team. J Strength Cond Res 32(6): 1708-1714, 2018-The purpose of this study was to examine the association between physical and technical activities and partial match status (winning, drawing, or losing) in a professional soccer team over 2 seasons. Physical and technical activities of 52 official matches were collected and analyzed at each 15-minute interval, for each half (45 minutes), and full match (90 minutes) using a multiple-camera computerized tracking system...
June 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29786009/comparison-of-optical-coherence-tomography-angiography-and-fundus-fluorescein-angiography-features-of-retinal-capillary-hemangioblastoma
#4
Pradeep Sagar, R Rajesh, Mahesh Shanmugam, Vinaya Kumar Konana, Divyansh Mishra
The aim of this study is to compare the optical coherence tomography angiography (OCTA) and fundus fluorescein angiography (FFA) features of retinal capillary hemangioblastoma (RCH). This is an observational case series of three patients with von Hippel-Lindau (VHL) disease and one patient with juxtapapillary RCH. All patients underwent FFA with a mydriatic fundus camera and OCTA with swept-source angio OCT. The FFA and OCTA characteristics of tumors were compared. In our series, FFA could identify tumors as small as the width of a third-order retinal artery, which was missed on clinical examination...
June 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29785909/udder-skin-surface-temperature-variation-pre-and-post-milking-in-dairy-cows-as-determined-by-infrared-thermography
#5
Chunhe Yang, Gan Li, Xiaojun Zhang, Xianhong Gu
The objectives of the research reported in this Research Communication were to compare the variation of hind quarter skin surface temperature pre- and post- milking in dairy cows and to determine the optimal time to capture images by infrared thermography for improving the sensitivity and specificity of mastitis detection in dairy cows. Hind quarter infrared images of 102 Holstein dairy cows were captured from the caudal view by an infrared camera pre-milking and post-milking. The udder skin surface temperature was measured with the help of the image processing software...
May 2018: Journal of Dairy Research
https://www.readbyqxmd.com/read/29785346/integrated-bioinformatic-changes-and-analysis-of-retina-with-time-in-diabetic-rats
#6
Zekai Cui, Qiaolang Zeng, Yonglong Guo, Shiwei Liu, Jiansu Chen
Diabetic retinopathy (DR) is the most common chronic complication of diabetes. It can cause impaired vision and even blindness. However, the pathological mechanism of DR is still unknown. In the present study, we use bioinformatic analysis to reveal the pathological changes of early DR in a streptozotocin (STZ) induced diabetes rat model. The dataset GSE28831 was downloaded from the Gene Expression Omnibus (GEO) database. To clarify the pathological mechanism of early DR, genes which were up-regulated (UP group) or down-regulated (DOWN group) over time were identified...
2018: PeerJ
https://www.readbyqxmd.com/read/29785133/are-quantitative-histopathologic-criteria-capable-of-differentiating-psoriasis-from-chronic-dermatitis
#7
Hamid Reza Ghasemi Basir, Pedram Alirezaei, Zahra Hamian, Elham Khanlarzadeh
Background: There are overlapping features in histopathologic characteristics of psoriasis and chronic dermatitis, which sometimes make the correct diagnosis difficult. Objective: The aim of this study was to compare the histopathologic diagnostic features of psoriasis with chronic dermatitis quantitatively. Patients and methods: In this study, 30 patients with psoriasis and 30 patients with chronic dermatitis were included. Diagnosis of psoriasis or chronic dermatitis was based on clinicopathologic correlation...
2018: Clinical, Cosmetic and Investigational Dermatology
https://www.readbyqxmd.com/read/29785008/massively-parallel-coincidence-counting-of-high-dimensional-entangled-states
#8
Matthew Reichert, Hugo Defienne, Jason W Fleischer
Entangled states of light are essential for quantum technologies and fundamental tests of physics. Current systems rely on entanglement in 2D degrees of freedom, e.g., polarization states. Increasing the dimensionality provides exponential speed-up of quantum computation, enhances the channel capacity and security of quantum communication protocols, and enables quantum imaging; unfortunately, characterizing high-dimensional entanglement of even bipartite quantum states remains prohibitively time-consuming. Here, we develop and experimentally demonstrate a new theory of camera detection that leverages the massive parallelization inherent in an array of pixels...
May 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29783789/lane-marking-detection-and-reconstruction-with-line-scan-imaging-data
#9
Lin Li, Wenting Luo, Kelvin C P Wang
A bstract: Lane marking detection and localization are crucial for autonomous driving and lane-based pavement surveys. Numerous studies have been done to detect and locate lane markings with the purpose of advanced driver assistance systems, in which image data are usually captured by vision-based cameras. However, a limited number of studies have been done to identify lane markings using high-resolution laser images for road condition evaluation. In this study, the laser images are acquired with a digital highway data vehicle (DHDV)...
May 20, 2018: Sensors
https://www.readbyqxmd.com/read/29783683/estimating-respiratory-rate-in-post-anesthesia-care-unit-patients-using-infrared-thermography-an-observational-study
#10
Nadine Hochhausen, Carina Barbosa Pereira, Steffen Leonhardt, Rolf Rossaint, Michael Czaplik
The post-anesthesia care unit (PACU) is the central hub for recovery after surgery, especially when the surgery is performed under general anesthesia. Aside from clinical aspects, respiratory impairment is one of the major causes of morbidity and affected recovery in the PACU and should therefore be monitored. In previous studies, infrared thermography was applied to assess the breathing rate (BR) of healthy volunteers. Here, the transferability of published methods for postoperative patients in the PACU was examined...
May 18, 2018: Sensors
https://www.readbyqxmd.com/read/29782582/surfaces-from-the-visual-past-recovering-high-resolution-terrain-data-from-historic-aerial-imagery-for-multitemporal-landscape-analysis
#11
Christopher Sevara, Geert Verhoeven, Michael Doneus, Erich Draganits
Historic aerial images are invaluable sources of aid to archaeological research. Often collected with large-format photogrammetric quality cameras, these images are potential archives of multidimensional data that can be used to recover information about historic landscapes that have been lost to modern development. However, a lack of camera information for many historic images coupled with physical degradation of their media has often made it difficult to compute geometrically rigorous 3D content from such imagery...
2018: Journal of archaeological method and theory
https://www.readbyqxmd.com/read/29782580/magic-circle
#12
Jan Koenderink, Andrea van Doorn, Johan Wagemans
Full-horizon cylindrical projections of the optic array are in common use. One wonders whether the public actually profits from such pictorial information, since the space behind one's back does not exist in visual awareness. In an experiment, a test image included six persons located at the corners of an irregular hexagon centred at the camera. Two persons faced the camera, two turned their back to the camera and two others faced a direction at right angles to the camera. The distances to the camera were unequal and varied from 1 to 2 m...
May 2018: I-Perception
https://www.readbyqxmd.com/read/29781589/right-mini-thoracotomy-bentall-with-traditional-and-automated-suturing-devices
#13
Carl Johnson, Juan Siordia, Davida Robinson, Peter Knight
Bentall procedures are traditionally performed through a median sternotomy. However, minimally invasive approaches are increasingly being utilized. A right mini-thoracotomy approach may improve postoperative recovery.  A 5-cm mini-thoracotomy is performed in the right 2nd intercostal space. A camera port is placed lateral to this incision. Peripheral cannulation is performed. The ascending aorta is cross-clamped. Cardioplegia is administered and the patient is placed in deep hypothermic circulatory arrest to construct the distal aortic anastomosis...
May 18, 2018: Multimedia Manual of Cardiothoracic Surgery: MMCTS
https://www.readbyqxmd.com/read/29780827/sentinel-lymph-node-biopsy-in-breast-cancer-patients-by-means-of-indocyanine-green-using-the-karl-storz-vitom%C3%A2-fluorescence-camera
#14
Thomas Papathemelis, Evi Jablonski, Anton Scharl, Tanja Hauzenberger, Michael Gerken, Monika Klinkhammer-Schalke, Matthias Hipp, Sophia Scharl
Currently, the use of radioisotope and blue dye for sentinel lymph node biopsy (SLNB) for axillary staging in breast cancer is common. Recently, indocyanine green (ICG) has been proposed as an alternative sentinel lymph node (SLN) tracking agent. We evaluated the clinical value of ICG as an additional tracer in combination with Technetium99m and as an alternative to Technetium99m for the identification of SLN in 104 breast cancer patients. 21 patients had at least 1 histologically tumor-positive SLN. All 21 patients were detected by ICG; in one of these 21 sentinel-positive patients, Technetium99m was unable to identify lymph node involvement...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29780808/real-time-observations-of-food-and-fluid-timing-during-a-120-km-ultramarathon
#15
Floris C Wardenaar, Daan Hoogervorst, Joline J Versteegen, Nancy van der Burg, Karin J Lambrechtse, Coen C W G Bongers
The aim of the present case study was to use real-time observations to investigate ultramarathon runners' timing of food and fluid intake per 15 km and per hour, and total bodyweight loss due to dehydration. The study included 5 male ultramarathon runners observed during a 120 km race. The research team members followed on a bicycle and continuously observed their dietary intake using action cameras. Hourly carbohydrate intake ranged between 22.1 and 62.6 g/h, and fluid intake varied between 260 and 603 mL/h...
2018: Frontiers in Nutrition
https://www.readbyqxmd.com/read/29780712/advantages-of-wound-retractor-device-versus-rigid-trocar-at-camera-port-in-video-assisted-thoracic-surgery-a-single-institution-experience
#16
Federico Raveglia, Ugo Cioffi, Matilde De Simone, Alessandro Rizzi, Andrea Leporati, Carmine Tinelli, Marco Chiarelli, Alessandro Baisi
Background: rigid trocars are widely adopted in video-assisted thoracic surgery (VATS), despite some disadvantages: (I) cannula strong pressure on intercostal nerve stimulating postoperative pain; (II) limited movement of thoracoscopic devices on their fulcrum when extreme acute angles with the chest wall are needed. Wound retractor (WR) device, designed for laparoscopic surgery, it is also used in VATS, but to protect mini-thoracotomy. We compared the use of extra-small WR versus rigid trocar at camera port that is the most painful thoracostomy...
2018: Journal of Visualized Surgery
https://www.readbyqxmd.com/read/29780172/a-spatially-integrated-framework-for-assessing-socioecological-drivers-of-carnivore-decline
#17
Nicolás Gálvez, Gurutzeta Guillera-Arroita, Freya A V St John, Elke Schüttler, David W Macdonald, Zoe G Davies
Habitat loss, fragmentation and degradation are key threats to the long-term persistence of carnivores, which are also susceptible to direct persecution by people. Integrating natural and social science methods to examine how habitat configuration/quality and human-predator relations may interact in space and time to effect carnivore populations within human-dominated landscapes will help prioritise conservation investment and action effectively.We propose a socioecological modelling framework to evaluate drivers of carnivore decline in landscapes where predators and people coexist...
May 2018: Journal of Applied Ecology
https://www.readbyqxmd.com/read/29779368/automated-3d-printed-microfluidic-array-for-rapid-nanomaterial-enhanced-detection-of-multiple-proteins
#18
Karteek Kadimisetty, Spundana Malla, Ketki Bhalerao, Islam M Mosa, Snehasis Bhakta, Norman Lee, James F Rusling
We report here the fabrication and validation of a novel 3D printed, automated immunoarray to detect multiple proteins with ultralow detection limits. This low cost, miniature immunoarray employs electrochemiluminescent (ECL) detection measured with a CCD camera and employs touch screen control of a micropump to facilitate automated use. The miniaturized array features prefilled reservoirs to deliver sample and reagents to a paper-thin pyrolytic graphite microwell detection chip to complete sandwich immunoassays...
May 21, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29778830/wearable-camera-derived-microenvironments-in-relation-to-personal-exposure-to-pm-2-5
#19
Maëlle Salmon, Carles Milà, Santhi Bhogadi, Srivalli Addanki, Pavitra Madhira, Niharika Muddepaka, Amaravathi Mora, Margaux Sanchez, Sanjay Kinra, V Sreekanth, Aiden Doherty, Julian D Marshall, Cathryn Tonne
Data regarding which microenvironments drive exposure to air pollution in low and middle income countries are scarce. Our objective was to identify sources of time-resolved personal PM2.5 exposure in peri-urban India using wearable camera-derived microenvironmental information. We conducted a panel study with up to 6 repeated non-consecutive 24 h measurements on 45 participants (186 participant-days). Camera images were manually annotated to derive visual concepts indicative of microenvironments and activities...
May 17, 2018: Environment International
https://www.readbyqxmd.com/read/29777982/documentation-and-analysis-of-traumatic-injuries-in-clinical-forensic-medicine-involving-structured-light-three-dimensional-surface-scanning-versus-photography
#20
Awatif Shamata, Tim Thompson
Non-contact three-dimensional (3D) surface scanning has been applied in forensic medicine and has been shown to mitigate shortcoming of traditional documentation methods. The aim of this paper is to assess the efficiency of structured light 3D surface scanning in recording traumatic injuries of live cases in clinical forensic medicine. The work was conducted in Medico-Legal Centre in Benghazi, Libya. A structured light 3D surface scanner and ordinary digital camera with close-up lens were used to record the injuries and to have 3D and two-dimensional (2D) documents of the same traumas...
May 10, 2018: Journal of Forensic and Legal Medicine
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