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https://www.readbyqxmd.com/read/29021803/uav-based-thermal-imaging-for-high-throughput-field-phenotyping-of-black-poplar-response-to-drought
#1
Riccardo Ludovisi, Flavia Tauro, Riccardo Salvati, Sacha Khoury, Giuseppe Mugnozza Scarascia, Antoine Harfouche
Poplars are fast-growing, high-yielding forest tree species, whose cultivation as second-generation biofuel crops is of increasing interest and can efficiently meet emission reduction goals. Yet, breeding elite poplar trees for drought resistance remains a major challenge. Worldwide breeding programs are largely focused on intra/interspecific hybridization, whereby Populus nigra L. is a fundamental parental pool. While high-throughput genotyping has resulted in unprecedented capabilities to rapidly decode complex genetic architecture of plant stress resistance, linking genomics to phenomics is hindered by technically challenging phenotyping...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29016811/drone-transport-of-chemistry-and-hematology-samples-over-long-distances
#2
Timothy K Amukele, James Hernandez, Christine L H Snozek, Ryan G Wyatt, Matthew Douglas, Richard Amini, Jeff Street
Objectives: We addressed the stability of biological samples in prolonged drone flights by obtaining paired chemistry and hematology samples from 21 adult volunteers in a single phlebotomy event-84 samples total. Methods: Half of the samples were held stationary, while the other samples were flown for 3 hours (258 km) in a custom active cooling box mounted on the drone. After the flight, 19 chemistry and hematology tests were performed. Results: Seventeen analytes had small or no bias, but glucose and potassium in flown samples showed an 8% and 6...
September 5, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28983821/digital-humanitarians-how-big-data-is-changing-the-face-of-humanitarian-response-patrick-meier-2015-crc-press-boca-raton-fl-978-1-4822-4839-5-259-pp
#3
Anushree Dave
This is a review of Patrick Meier's 2015 book, Digital Humanitarians: How Big Data Is Changing the Face of Humanitarian Response. The book explores the role of technologies such as high-resolution satellite imagery, online social media, drones, and artificial intelligence in humanitarian responses during disasters such as the 2010 Haiti earthquake. In this analysis, the book is examined using a humanitarian health ethics perspective.
October 5, 2017: Journal of Bioethical Inquiry
https://www.readbyqxmd.com/read/28977020/age-specific-olfactory-attraction-between-western-honey-bee-drones-apis-mellifera-and-its-chemical-basis
#4
Florian Bastin, Fabrice Savarit, Grégory Lafon, Jean-Christophe Sandoz
During the mating season, drones (males) of the Western honey bee (Apis mellifera) form congregations numbering thousands high in the air. Virgin queens arrive at these congregations after they have formed and mate on the fly with 15-20 drones. To explain the formation of drone congregations, a drone-produced aggregation pheromone has been proposed many years ago but due to the low accessibility of natural mating sites in bees, its study has progressed slowly. Recently, we used a walking simulator in controlled laboratory conditions to show that drones are indeed attracted by groups of other drones...
2017: PloS One
https://www.readbyqxmd.com/read/28971063/nanoparticle-drones-to-target-lung-cancer-with-radiosensitizers-and-cannabinoids
#5
Wilfred Ngwa, Rajiv Kumar, Michele Moreau, Raymond Dabney, Allen Herman
Nanotechnology has opened up a new, previously unimaginable world in cancer diagnosis and therapy, leading to the emergence of cancer nanomedicine and nanoparticle-aided radiotherapy. Smart nanomaterials (nanoparticle drones) can now be constructed with capability to precisely target cancer cells and be remotely activated with radiation to emit micrometer-range missile-like electrons to destroy the tumor cells. These nanoparticle drones can also be programmed to deliver therapeutic payloads to tumor sites to achieve optimal therapeutic efficacy...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28961204/3d-power-line-extraction-from-multiple-aerial-images
#6
Jaehong Oh, Changno Lee
Power lines are cables that carry electrical power from a power plant to an electrical substation. They must be connected between the tower structures in such a way that ensures minimum tension and sufficient clearance from the ground. Power lines can stretch and sag with the changing weather, eventually exceeding the planned tolerances. The excessive sags can then cause serious accidents, while hindering the durability of the power lines. We used photogrammetric techniques with a low-cost drone to achieve efficient 3D mapping of power lines that are often difficult to approach...
September 29, 2017: Sensors
https://www.readbyqxmd.com/read/28928001/the-potential-use-of-unmanned-aircraft-systems-drones-in-mountain-search-and-rescue-operations
#7
Yunus Karaca, Mustafa Cicek, Ozgur Tatli, Aynur Sahin, Sinan Pasli, Muhammed Fatih Beser, Suleyman Turedi
OBJECTIVE: This study explores the potential use of drones in searching for and locating victims and of motorized transportation of search and rescue providers in a mountain environment using a simulation model. METHODS: This prospective randomized simulation study was performed in order to compare two different search and rescue techniques in searching for an unconscious victim on snow-covered ground. In the control arm, the Classical Line Search Technique (CLT) was used, in which the search is performed on foot and the victim is reached on foot...
September 15, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28916146/chinese-sacbrood-virus-infection-in-asian-honey-bees-apis-cerana-cerana-and-host-immune-responses-to-the-virus-infection
#8
Liu Shan, Wang Liuhao, Guo Jun, Tang Yujie, Chen Yanping, Wu Jie, Li Jilian
Chinese Sacbrood virus (CSBV) is a positive-stranded RNAvirus that infects both the European honey bee (Apis mellifera) and the Asian honey bee (A. cerana). However, CSBV has much more devastating effects on Asian honey bees than on European honey bees, posing a serious threat to the agricultural and natural ecosystems that rely on A. cerana for pollination service. Using quantitative RT-PCR method, we conducted studies to examine the CSBV infection in Asian honey bee colonies and immune responses of individual bees in response to CSBV infection...
September 12, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28900394/navigation-and-self-semantic-location-of-drones-in-indoor-environments-by-combining-the-visual-bug-algorithm-and-entropy-based-vision
#9
Darío Maravall, Javier de Lope, Juan P Fuentes
We introduce a hybrid algorithm for the self-semantic location and autonomous navigation of robots using entropy-based vision and visual topological maps. In visual topological maps the visual landmarks are considered as leave points for guiding the robot to reach a target point (robot homing) in indoor environments. These visual landmarks are defined from images of relevant objects or characteristic scenes in the environment. The entropy of an image is directly related to the presence of a unique object or the presence of several different objects inside it: the lower the entropy the higher the probability of containing a single object inside it and, conversely, the higher the entropy the higher the probability of containing several objects inside it...
2017: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/28889867/an-investigation-into-the-effect-of-surveillance-drones-on-textile-evidence-at-crime-scenes
#10
Alistair Bucknell, Tom Bassindale
With increasing numbers of Police forces using drones for crime scene surveillance, the effect of the drones on trace evidence present needs evaluation. In this investigation the effect of flying a quadcopter drone at different heights over a controlled scene and taking off at different distances from the scene were measured. Yarn was placed on a range of floor surfaces and the number lost or moved from their original position was recorded. It was possible to estimate "safe" distances above and take off distance from the bath mat (2m and 1m respectively), and carpet tile (3m and 1m) which were the roughest surfaces...
September 2017: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/28883425/computational-genome-wide-survey-of-odorant-receptors-from-two-solitary-bees-dufourea-novaeangliae-hymenoptera-halictidae-and-habropoda-laboriosa-hymenoptera-apidae
#11
Snehal D Karpe, Surbhi Dhingra, Axel Brockmann, R Sowdhamini
Olfactory/odorant receptors (ORs) probably govern eusocial behaviour in honey bees through detection of cuticular hydrocarbons (CHCs) and queen mandibular gland pheromones (QMP). CHCs are involved in nest-mate recognition whereas QMP acts as sex pheromone for drones and as retinue pheromone for female workers. Further studies on the effect of eusociality on the evolution of ORs are hindered by the non-availability of comprehensive OR sets of solitary species. We report complete OR repertoires from two solitary bees Dufourea novaeangliae (112 ORs) and Habropoda laboriosa (151 ORs)...
September 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28867775/remote-marker-based-tracking-for-uav-landing-using-visible-light-camera-sensor
#12
Phong Ha Nguyen, Ki Wan Kim, Young Won Lee, Kang Ryoung Park
Unmanned aerial vehicles (UAVs), which are commonly known as drones, have proved to be useful not only on the battlefields where manned flight is considered too risky or difficult, but also in everyday life purposes such as surveillance, monitoring, rescue, unmanned cargo, aerial video, and photography. More advanced drones make use of global positioning system (GPS) receivers during the navigation and control loop which allows for smart GPS features of drone navigation. However, there are problems if the drones operate in heterogeneous areas with no GPS signal, so it is important to perform research into the development of UAVs with autonomous navigation and landing guidance using computer vision...
August 30, 2017: Sensors
https://www.readbyqxmd.com/read/28819220/nosema-ceranae-fipronil-and-their-combination-compromise-honey-bee-reproduction-via-changes-in-male-physiology
#13
Guillaume Kairo, David G Biron, Faten Ben Abdelkader, Marc Bonnet, Sylvie Tchamitchian, Marianne Cousin, Claudia Dussaubat, Boris Benoit, André Kretzschmar, Luc P Belzunces, Jean-Luc Brunet
The honey bee is threatened by biological agents and pesticides that can act in combination to induce synergistic effects on its physiology and lifespan. The synergistic effects of a parasite/pesticide combination have been demonstrated on workers and queens, but no studies have been performed on drones despite their essential contribution to colony sustainability by providing semen diversity and quality. The effects of the Nosema ceranae/fipronil combination on the life traits and physiology of mature drones were examined following exposure under semi-field conditions...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28771185/accuracy-analysis-of-a-dam-model-from-drone-surveys
#14
Elena Ridolfi, Giulia Buffi, Sara Venturi, Piergiorgio Manciola
This paper investigates the accuracy of models obtained by drone surveys. To this end, this work analyzes how the placement of ground control points (GCPs) used to georeference the dense point cloud of a dam affects the resulting three-dimensional (3D) model. Images of a double arch masonry dam upstream face are acquired from drone survey and used to build the 3D model of the dam for vulnerability analysis purposes. However, there still remained the issue of understanding the real impact of a correct GCPs location choice to properly georeference the images and thus, the model...
August 3, 2017: Sensors
https://www.readbyqxmd.com/read/28768049/hazard-analysis-and-safety-requirements-for-small-drone-operations-to-what-extent-do-popular-drones-embed-safety
#15
Anastasios Plioutsias, Nektarios Karanikas, Maria Mikela Chatzimihailidou
Currently, published risk analyses for drones refer mainly to commercial systems, use data from civil aviation, and are based on probabilistic approaches without suggesting an inclusive list of hazards and respective requirements. Within this context, this article presents: (1) a set of safety requirements generated from the application of the systems theoretic process analysis (STPA) technique on a generic small drone system; (2) a gap analysis between the set of safety requirements and the ones met by 19 popular drone models; (3) the extent of the differences between those models, their manufacturers, and the countries of origin; and (4) the association of drone prices with the extent they meet the requirements derived by STPA...
August 2, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28764582/how-drone-strikes-and-a-fake-vaccination-program-have-inhibited-polio-eradication-in-pakistan-an-analysis-of-national-level-data
#16
Jonathan Kennedy
This article investigates whether the United States' counterinsurgency operations have inhibited polio eradication efforts in northwestern Pakistan, the world's last major reservoir of polio. Anecdotal evidence suggests that militants disrupt polio vaccination programs because of suspicions that campaigns are a cover for gathering intelligence on Central Intelligence Agency (CIA) drone targets. This paper analyzes national-level quantitative data to test this argument. Between 2004 and 2012, the number of polio cases in Pakistan closely mirrored the number of drone strikes...
January 1, 2017: International Journal of Health Services: Planning, Administration, Evaluation
https://www.readbyqxmd.com/read/28748329/impact-of-thiamethoxam-on-honey-bee-queen-apis-mellifera-carnica-reproductive-morphology-and-physiology
#17
Ivana Tlak Gajger, Martina Sakač, Aleš Gregorc
High honey bee losses around the world have been linked in part by the regular use of neonicotinoids in agriculture. In light of the current situation, the aim of this study was to investigate the effects of thiamethoxam on the development of the reproductive system and physiology in the honey bee queen. Two experimental groups of honey bee queen larvae were treated with thiamethoxam during artificial rearing, applied via artificial feed in two cycles. In the first rearing cycle, honey bee larvae received a single treatment dose (4...
July 26, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28740234/virgin-queen-attraction-toward-males-in-honey-bees
#18
Florian Bastin, Hanna Cholé, Grégory Lafon, Jean-Christophe Sandoz
Although the honeybee is a crucial agricultural agent and a prominent scientific model organism, crucial aspects of its reproductive behaviour are still unknown. During the mating season, honeybee males, the drones, gather in congregations 10-40 m above ground. Converging evidence suggests that drones emit a pheromone that can attract other drones, thereby increasing the size of the congregation. Virgin queens join the vicinity of the congregation after it has formed, and mate with as many as 20 males in mid-air...
July 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28720569/platelets-as-autonomous-drones-for-hemostatic-and-immune-surveillance
#19
REVIEW
Jackson LiangYao Li, Alexander Zarbock, Andrés Hidalgo
Platelets participate in many important physiological processes, including hemostasis and immunity. However, despite their broad participation in these evolutionarily critical roles, the anucleate platelet is uniquely mammalian. In contrast with the large nucleated equivalents in lower vertebrates, we find that the design template for the evolutionary specialization of platelets shares remarkable similarities with human-engineered unmanned aerial vehicles in terms of overall autonomy, maneuverability, and expendability...
July 18, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28709654/outdoor-flocking-of-quadcopter-drones-with-decentralized-model-predictive-control
#20
Quan Yuan, Jingyuan Zhan, Xiang Li
In this paper, we present a multi-drone system featured with a decentralized model predictive control (DMPC) flocking algorithm. The drones gather localized information from neighbors and update their velocities using the DMPC flocking algorithm. In the multi-drone system, data packages are transmitted through XBee(®) wireless modules in broadcast mode, yielding such an anonymous and decentralized system where all the calculations and controls are completed on an onboard minicomputer of each drone. Each drone is a double-layered agent system with the coordination layer running multi-drone flocking algorithms and the flight control layer navigating the drone, and the final formation of the flock relies on both the communication range and the desired inter-drone distance...
July 11, 2017: ISA Transactions
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