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https://www.readbyqxmd.com/read/28535305/preservation-of-domesticated-honey-bee-hymenoptera-apidae-drone-semen
#1
M Paillard, A Rousseau, P Giovenazzo, J L Bailey
Preservation of honey bee (Apis mellifera L., Hymenoptera: Apidae) sperm, coupled with instrumental insemination, is an effective strategy to protect the species and their genetic diversity. Our overall objective is to develop a method of drone semen preservation; therefore, two experiments were conducted. Hypothesis 1 was that cryopreservation (-196 °C) of drone semen is more effective for long-term storage than at 16 °C. Our results show that after 1 yr of storage, frozen sperm viability was higher than at 16 °C, showing that cryopreservation is necessary to conserve semen...
May 23, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28531141/eyes-of-things
#2
Oscar Deniz, Noelia Vallez, Jose L Espinosa-Aranda, Jose M Rico-Saavedra, Javier Parra-Patino, Gloria Bueno, David Moloney, Alireza Dehghani, Aubrey Dunne, Alain Pagani, Stephan Krauss, Ruben Reiser, Martin Waeny, Matteo Sorci, Tim Llewellynn, Christian Fedorczak, Thierry Larmoire, Marco Herbst, Andre Seirafi, Kasra Seirafi
Embedded systems control and monitor a great deal of our reality. While some "classic" features are intrinsically necessary, such as low power consumption, rugged operating ranges, fast response and low cost, these systems have evolved in the last few years to emphasize connectivity functions, thus contributing to the Internet of Things paradigm. A myriad of sensing/computing devices are being attached to everyday objects, each able to send and receive data and to act as a unique node in the Internet. Apart from the obvious necessity to process at least some data at the edge (to increase security and reduce power consumption and latency), a major breakthrough will arguably come when such devices are endowed with some level of autonomous "intelligence"...
May 21, 2017: Sensors
https://www.readbyqxmd.com/read/28487253/the-drone-ambulance-a-uas-golden-bullet-or-just-a-blank
#3
P Van de Voorde, S Gautama, A Momont, C M Ionescu, P De Paepe, N Fraeyman
Defibrillation within the first minutes after sudden cardiac arrest can save many quality-adjusted life years. Yet, despite enormous investments, 'healthcare' is still unable to provide this for the majority of patients. Emergency Medical Services often have a too long mean response time and many issues surround Public Access Defibrillation programs. In this article we argument that AED-equipped drones could be the 'magic bullet'. They are easily deployed and fast, and have a relatively low operational cost...
May 6, 2017: Resuscitation
https://www.readbyqxmd.com/read/28484488/progress-in-eeg-based-brain-robot-interaction-systems
#4
REVIEW
Xiaoqian Mao, Mengfan Li, Wei Li, Linwei Niu, Bin Xian, Ming Zeng, Genshe Chen
The most popular noninvasive Brain Robot Interaction (BRI) technology uses the electroencephalogram- (EEG-) based Brain Computer Interface (BCI), to serve as an additional communication channel, for robot control via brainwaves. This technology is promising for elderly or disabled patient assistance with daily life. The key issue of a BRI system is to identify human mental activities, by decoding brainwaves, acquired with an EEG device. Compared with other BCI applications, such as word speller, the development of these applications may be more challenging since control of robot systems via brainwaves must consider surrounding environment feedback in real-time, robot mechanical kinematics, and dynamics, as well as robot control architecture and behavior...
2017: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/28468813/the-cues-of-colony-size-how-honey-bees-sense-that-their-colony-is-large-enough-to-begin-to-invest-in-reproduction
#5
Michael L Smith, Phoebe A Koenig, Jacob M Peters
As organisms develop, they first invest resources in survival and growth, but after reaching a certain condition they start to also invest in reproduction. Likewise, superorganisms, such as honey bee colonies, first invest in survival and growth, and later commit resources to reproduction once the number of workers in the colony surpasses a reproductive threshold. The first form of reproductive investment for a honey bee colony is the building of beeswax comb made of special large cells used for rearing males (drones)...
May 1, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28467390/cooperative-spatial-retreat-for-resilient-drone-networks
#6
Jin-Hyeok Kang, Young-Min Kwon, Kyung-Joon Park
Drones are broadening their scope to various applications such as networking, package delivery, agriculture, rescue, and many more. For proper operation of drones, reliable communication should be guaranteed because drones are remotely controlled. When drones experience communication failure due to bad channel condition, interference, or jamming in a certain area, one existing solution is to exploit mobility or so-called spatial retreat to evacuate them from the communication failure area. However, the conventional spatial retreat scheme moves drones in random directions, which results in inefficient movement with significant evacuation time and waste of battery lifetime...
May 3, 2017: Sensors
https://www.readbyqxmd.com/read/28456343/reconsidering-drone-warfare
#7
REVIEW
Roger Connor
No abstract text is available yet for this article.
April 26, 2017: Endeavour
https://www.readbyqxmd.com/read/28421566/precision-global-health-in-the-digital-age
#8
Antoine Flahault, Antoine Geissbuhler, Idris Guessous, Philippe Guérin, Isabelle Bolon, Marcel Salathé, Gérard Escher
Precision global health is an approach similar to precision medicine, which facilitates, through innovation and technology, better targeting of public health interventions on a global scale, for the purpose of maximising their effectiveness and relevance. Illustrative examples include: the use of remote sensing data to fight vector-borne diseases; large databases of genomic sequences of foodborne pathogens helping to identify origins of outbreaks; social networks and internet search engines for tracking communicable diseases; cell phone data in humanitarian actions; drones to deliver healthcare services in remote and secluded areas...
April 19, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28318989/first-report-of-using-portable-unmanned-aircraft-systems-drones-for-search-and-rescue
#9
Christopher Van Tilburg
Unmanned aircraft systems (UAS), colloquially called drones, are used commonly for military, government, and civilian purposes, including both commercial and consumer applications. During a search and rescue mission in Oregon, a UAS was used to confirm a fatality in a slot canyon; this eliminated the need for a dangerous rappel at night by rescue personnel. A second search mission in Oregon used several UAS to clear terrain. This allowed search of areas that were not accessible or were difficult to clear by ground personnel...
March 16, 2017: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/28277512/technology-insects-inspire-crash-proof-drone
#10
(no author information available yet)
No abstract text is available yet for this article.
March 8, 2017: Nature
https://www.readbyqxmd.com/read/28272421/eeg-frequency-tagging-dissociates-between-neural-processing-of-motion-synchrony-and-human-quality-of-multiple-point-light-dancers
#11
Nihan Alp, Andrey R Nikolaev, Johan Wagemans, Naoki Kogo
Do we perceive a group of dancers moving in synchrony differently from a group of drones flying in-sync? The brain has dedicated networks for perception of coherent motion and interacting human bodies. However, it is unclear to what extent the underlying neural mechanisms overlap. Here we delineate these mechanisms by independently manipulating the degree of motion synchrony and the humanoid quality of multiple point-light displays (PLDs). Four PLDs moving within a group were changing contrast in cycles of fixed frequencies, which permits the identification of the neural processes that are tagged by these frequencies...
March 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28254836/optimizing-a-drone-network-to-deliver-automated-external-defibrillators
#12
Justin J Boutilier, Steven C Brooks, Alyf Janmohamed, Adam Byers, Jason E Buick, Cathy Zhan, Angela P Schoellig, Sheldon Cheskes, Laurie J Morrison, Timothy C Y Chan
Background -Public access defibrillation programs can improve survival after out-of-hospital cardiac arrest (OHCA), but automated external defibrillators (AEDs) are rarely available for bystander use at the scene. Drones are an emerging technology that can deliver an AED to the scene of an OHCA for bystander use. We hypothesize that a drone network designed with the aid of a mathematical model combining both optimization and queuing can reduce the time to AED arrival. Methods -We applied our model to 53,702 OHCAs that occurred in the eight regions of the Toronto Regional RescuNET between January 1st 2006 and December 31st 2014...
March 2, 2017: Circulation
https://www.readbyqxmd.com/read/28246646/3d-printed-eagle-eye-compound-microlens-system-for-foveated-imaging
#13
Simon Thiele, Kathrin Arzenbacher, Timo Gissibl, Harald Giessen, Alois M Herkommer
We present a highly miniaturized camera, mimicking the natural vision of predators, by 3D-printing different multilens objectives directly onto a complementary metal-oxide semiconductor (CMOS) image sensor. Our system combines four printed doublet lenses with different focal lengths (equivalent to f = 31 to 123 mm for a 35-mm film) in a 2 × 2 arrangement to achieve a full field of view of 70° with an increasing angular resolution of up to 2 cycles/deg field of view in the center of the image. The footprint of the optics on the chip is below 300 μm × 300 μm, whereas their height is <200 μm...
February 2017: Science Advances
https://www.readbyqxmd.com/read/28224659/assessment-of-the-toxicity-of-pesticides-on-honey-bee-drone-fertility-using-laboratory-and-semi-field-approaches-a-case-study-of-fipronil
#14
Guillaume Kairo, Yannick Poquet, Haïthem Haji, Sylvie Tchamitchian, Marianne Cousin, Marc Bonnet, Michel Pelissier, André Kretzschmar, Luc P Belzunces, Jean-Luc Brunet
Concern about the reproductive toxicity of plant protection products (PPPs) in honey bee reproducers is increasing. Because the reproductive capacity of honey bees is not currently considered during the risk assessment procedures performed during PPP registration, it is important to provide methods to assess such potential impairments. To achieve this aim, we used two different approaches that involved semi-field (SF) and laboratory (Lab) conditions to study the impact of Fipronil on drone fertility. For each approach, the drones were reared for 20 days, from emergence to sexual maturity, and exposed to Fipronil via a contaminated sugar solution...
February 22, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28163882/bioinspired-morphing-wings-for-extended-flight-envelope-and-roll-control-of-small-drones
#15
M Di Luca, S Mintchev, G Heitz, F Noca, D Floreano
Small-winged drones can face highly varied aerodynamic requirements, such as high manoeuvrability for flight among obstacles and high wind resistance for constant ground speed against strong headwinds that cannot all be optimally addressed by a single aerodynamic profile. Several bird species solve this problem by changing the shape of their wings to adapt to the different aerodynamic requirements. Here, we describe a novel morphing wing design composed of artificial feathers that can rapidly modify its geometry to fulfil different aerodynamic requirements...
February 6, 2017: Interface Focus
https://www.readbyqxmd.com/read/28150219/sexual-response-of-male-drosophila-to-honey-bee-queen-mandibular-pheromone-implications-for-genetic-studies-of-social-insects
#16
Justin R Croft, Tom Liu, Alison L Camiletti, Anne F Simon, Graham J Thompson
Honey bees secrete a queen mandibular pheromone that renders workers reproductively altruistic and drones sexually attentive. This sex-specific function of QMP may have evolved from a sexually dimorphic signaling mechanism derived from pre-social ancestors. If so, there is potential for pre-social insects to respond to QMP, and in a manner that is comparable to its normal effect on workers and drones. Remarkably, QMP applied to female Drosophila does induce worker-like qualities [Camiletti et al. (Entomol Exp Appl 147:262, 2013)], and we here extend this comparison to examine the effects of bee pheromone on male fruit flies...
February 1, 2017: Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
https://www.readbyqxmd.com/read/28135666/the-combined-effects-of-a-monotonous-diet-and-exposure-to-thiamethoxam-on-the-performance-of-bumblebee-micro-colonies
#17
C Dance, C Botías, D Goulson
There is a pressing need to better understand the factors contributing to declines of wild pollinators such as bumblebees. Many different contributors have been postulated including: loss of flower-rich habitats and nesting sites; monotonous diets; impacts of invasive pathogens; exposure to pesticides such as neonicotinoids. Past research has tended to investigate the impacts of these stressors in isolation, despite the increasing recognition that bees are simultaneously exposed to a combination of stressors, with potentially additive or synergistic effects...
January 27, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28110000/drones-may-be-used-to-save-lives-in-out-of-hospital-cardiac-arrest-due-to-drowning
#18
A Claesson, L Svensson, P Nordberg, M Ringh, M Rosenqvist, T Djarv, J Samuelsson, O Hernborg, P Dahlbom, A Jansson, J Hollenberg
BACKGROUND: Drowning leading to out-of-hospital cardiac arrest (OHCA) and death is a major public health concern. Submersion with duration of less than 10min is associated with favorable neurological outcome and nearby bystanders play a considerable role in rescue and resuscitation. Drones can provide a visual overview of an accident scene, their potential as lifesaving tools in drowning has not been evaluated. AIM: The aim of this simulation study was to evaluate the efficiency of a drone for providing earlier location of a submerged possible drowning victim in comparison with standard procedure...
January 18, 2017: Resuscitation
https://www.readbyqxmd.com/read/28107354/visual-adaptations-for-mate-detection-in-the-male-carpenter-bee-xylocopa-tenuiscapa
#19
Hema Somanathan, Renee Maria Borges, Eric J Warrant, Almut Kelber
Sexual dimorphism in eye structure is attributed to sexual selection in animals that employ vision for locating mates. In many male insects, large eyes and eye regions of higher acuity are believed to facilitate the location of females. Here, we compare various features of male and female eyes in three sympatric carpenter bee species, which include two diurnal species (Xylocopa tenuiscapa and X. leucothorax) as well as a nocturnal species (X. tranquebarica). In X. tenuiscapa, males have larger eyes than females, while in the nocturnal X...
2017: PloS One
https://www.readbyqxmd.com/read/28088225/using-low-cost-drones-to-map-malaria-vector-habitats
#20
Andy Hardy, Makame Makame, Dónall Cross, Silas Majambere, Mwinyi Msellem
BACKGROUND: There is a growing awareness that if we are to achieve the ambitious goal of malaria elimination, we must compliment indoor-based vector control interventions (such as bednets and indoor spraying) with outdoor-based interventions such as larval source management (LSM). The effectiveness of LSM is limited by our capacity to identify and map mosquito aquatic habitats. This study provides a proof of concept for the use of a low-cost (< $1000) drone (DJI Phantom) for mapping water bodies in seven sites across Zanzibar including natural water bodies, irrigated and non-irrigated rice paddies, peri-urban and urban locations...
January 14, 2017: Parasites & Vectors
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