keyword
MENU ▼
Read by QxMD icon Read
search

Life flight

keyword
https://www.readbyqxmd.com/read/29225885/life-history-strategy-resource-dispersion-and-phylogenetic-associations-shape-dispersal-of-a-fig-wasp-community
#1
Vignesh Venkateswaran, Amitabh Shrivastava, Anusha L K Kumble, Renee M Borges
Background: The combined influence of life-history strategy and resource dispersion on dispersal evolution of a biological community, and by extension, on community assemblage, has received sparse attention. Highly specialized fig wasp communities are ideal for addressing this question since the life-history strategies that affect their pace of life and the dispersion of their oviposition resources vary. We compared dispersal capacities of the wasp community of a widespread tropical fig, Ficus racemosa, by measuring flight durations, somatic lipid content and resting metabolic rates...
2017: Movement Ecology
https://www.readbyqxmd.com/read/29204692/flight-induced-transgenerational-maternal-effects-influence-butterfly-offspring-performance-during-times-of-drought
#2
Melanie Gibbs, Hans Van Dyck, Casper J Breuker
Maternal condition can generate resource-related maternal effects through differential egg provisioning that can negatively affect offspring performance especially when offspring growth occurs in stressful or sub-optimal environments. Using the Speckled Wood butterfly, Pararge aegeria (L.) we tested the hypothesis that repeated periods of intensive flight during female oviposition affects egg provisioning and reduces offspring performance when larval development occurs under stressful conditions on drought stressed host plants...
December 4, 2017: Oecologia
https://www.readbyqxmd.com/read/29194033/immunoproteomic-analysis-of-the-protein-repertoire-of-unsporulated-eimeria-tenella-oocysts
#3
Zhenchao Zhang, Shuai Wang, Charles Li, Liheng Liu
The apicomplexan protozoans Eimeria spp. cause coccidioses, the most common intestinal diseases in chickens. Coccidiosis is associated with significant animal welfare issues and has a high economic impact on the poultry industry. Lack of a full understanding of immunogenic molecules and their precise functions involved in the Eimeria life cycles may limit development of effective vaccines and drug therapies. In this study, immunoproteomic approaches were used to define the antigenic protein repertoire from the total proteins of unsporulated Eimeria tenella oocysts...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/29157874/air-travel-and-postoperative-lymphedema-a-systematic-review
#4
REVIEW
Michael Co, Judy Ng, Ava Kwong
Lymphedema is not uncommon after axillary dissection for breast cancer. Improved survival of patients with breast cancer from advances in adjuvant therapy has resulted in increased awareness of the quality of life for long-term survivors. Air travel has been postulated as 1 of the risk factors of lymphedema exacerbation. In the present systematic review, we sought to critically evaluate the current data on this topic. The present study was registered in the Research Registry. A systematic review of lymphedema and air travel was performed using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses protocol...
October 19, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29152179/flight-is-the-key-to-postprandial-blood-glucose-balance-in-the-fruit-bats-eonycteris-spelaea-and-cynopterus-sphinx
#5
Xingwen Peng, Xiangyang He, Qi Liu, Yunxiao Sun, Hui Liu, Qin Zhang, Jie Liang, Zhen Peng, Zhixiao Liu, Libiao Zhang
Excessive sugar consumption could lead to high blood glucose levels that are harmful to mammalian health and life. Despite consuming large amounts of sugar-rich food, fruit bats have a longer lifespan, raising the question of how these bats overcome potential hyperglycemia. We investigated the change of blood glucose level in nectar-feeding bats (Eonycteris spelaea) and fruit-eating bats (Cynopterus sphinx) via adjusting their sugar intake and time of flight. We found that the maximum blood glucose level of C...
November 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29134033/a-new-cryptic-lactura-from-texas-lepidoptera-zygaenoidea-lacturidae
#6
Tanner Matson, David L Wagner
A new species of Lactura is described from Texas: Lactura rubritegulasp. n. Identity of the new species can be reliably determined by both larval and adult characters, CO1 haplotypes, and its late-spring period of flight activity. Male genitalic features overlap with those of L. basistriga (Barnes & McDunnough, 1913), whereas female structures differ markedly between the pair. The new Sideroxylon-feeding species, rare in collections, is found principally in limestone areas in the vicinity San Antonio, Texas, westward through the southern Hill Country...
2017: ZooKeys
https://www.readbyqxmd.com/read/29093534/logistic-growth-of-a-surface-contamination-network-and-its-role-in-disease-spread
#7
Hao Lei, Yuguo Li, Shenglan Xiao, Xinyan Yang, ChaoHsin Lin, Sharon L Norris, Daniel Wei, Zhongmin Hu, Shengcheng Ji
Surfaces and objects surround us, and touching them is integral to everyday life. Pathogen contaminated surfaces (fomites) are known to transmit diseases. However, little is known about the ways and speed at which surfaces become contaminated. We found that under certain conditions, the number of contaminated surfaces grows logistically, corresponding to possible rapid transmission of infection. In such a surface network, pathogen can be transmitted great distances quickly-as far as people move. We found that the surface contamination network in aircraft cabins exhibits a community structure, with small communities connected by the aisle seatback surfaces and toilets, which are high-touch surfaces...
November 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29073055/the-topography-of-the-environment-alters-the-optimal-search-strategy-for-active-particles
#8
Giorgio Volpe, Giovanni Volpe
In environments with scarce resources, adopting the right search strategy can make the difference between succeeding and failing, even between life and death. At different scales, this applies to molecular encounters in the cell cytoplasm, to animals looking for food or mates in natural landscapes, to rescuers during search and rescue operations in disaster zones, and to genetic computer algorithms exploring parameter spaces. When looking for sparse targets in a homogeneous environment, a combination of ballistic and diffusive steps is considered optimal; in particular, more ballistic Lévy flights with exponent [Formula: see text] are generally believed to optimize the search process...
October 24, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29066750/ontogeny-of-foraging-behaviour-in-juvenile-red-footed-boobies-sula-sula
#9
Loriane Mendez, Aurélien Prudor, Henri Weimerskirch
The early life stages represent a crucial period that can strongly influence population dynamics. We studied the development of foraging behaviour in the red-footed booby, a tropical seabird with an extensive post-fledging care period (3 to 6 months). Adults and juveniles were observed from shore and tracked at sea using GPS loggers over 3 consecutive 12-day periods. Juveniles initially made a majority of flights inland, likely to practice flying, and formed groups of up to 10 juveniles before making short trips at sea...
October 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29060763/graph-theoretical-analysis-of-eeg-functional-network-during-multi-workload-flight-simulation-experiment-in-virtual-reality-environment
#10
Shengqian Zhang, Yuan Zhang, Yu Sun, Nitish Thakor, Anastasios Bezerianos
The research field of mental workload has attracted abundant researchers as mental workload plays a crucial role in real-life performance and safety. While previous studies have examined the neural correlates of mental workload in 2D scenarios (i.e., presenting stimuli on a computer screen (CS) environment using univariate methods (e.g., EEG channel power), it is still unclear of the findings of one that uses multivariate approach using graphical theory and the effects of a 3D environment (i.e., presenting stimuli on a Virtual Reality (VR))...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29051535/the-biomechanical-origin-of-extreme-wing-allometry-in-hummingbirds
#11
Dimitri A Skandalis, Paolo S Segre, Joseph W Bahlman, Derrick J E Groom, Kenneth C Welch, Christopher C Witt, Jimmy A McGuire, Robert Dudley, David Lentink, Douglas L Altshuler
Flying animals of different masses vary widely in body proportions, but the functional implications of this variation are often unclear. We address this ambiguity by developing an integrative allometric approach, which we apply here to hummingbirds to examine how the physical environment, wing morphology and stroke kinematics have contributed to the evolution of their highly specialised flight. Surprisingly, hummingbirds maintain constant wing velocity despite an order of magnitude variation in body weight; increased weight is supported solely through disproportionate increases in wing area...
October 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/28988030/sub-lethal-viral-exposure-and-growth-on-drought-stressed-host-plants-changes-resource-allocation-patterns-and-life-history-costs-in-the-speckled-wood-butterfly-pararge-aegeria
#12
Melanie Gibbs, Laura Weir
This study investigated the interactive effects of growth on drought stressed host plants and pathogen challenge with the baculovirus Autographa californica nucleopolyhedrovirus (AcMNPV) on survival and fitness-related traits using the Speckled Wood butterfly, Pararge aegeria (L.). Exposure to AcMNPV significantly reduced survival to pupation. For surviving larvae, sub-lethal infection significantly decreased daily mass acquisition rates and pupal mass. Growth on drought stressed plants increased daily mass acquisition rates resulting in heavier pupae, and increased resource allocation to adult reproduction...
October 4, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28982001/fast-and-effective-ion-mobility-mass-spectrometry-separation-of-d-amino-acid-containing-peptides
#13
Kevin Jeanne Dit Fouque, Alyssa Garabedian, Jacob Porter, Matthew Baird, Xueqin Pang, Todd D Williams, Lingjun Li, Alexandre Shvartsburg, Francisco Fernandez-Lima
Despite often minute concentrations in vivo, d-amino acid containing peptides (DAACPs) are crucial to many life processes. Standard proteomics protocols fail to detect them as d/l substitutions do not affect the peptide parent and fragment masses. The differences in fragment yields are often limited, obstructing the investigations of important but low abundance epimers in isomeric mixtures. Separation of d/l-peptides using ion mobility spectrometry (IMS) was impeded by small collision cross section differences (commonly ∼1%)...
November 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28976620/forest-bees-are-replaced-in-agricultural-and-urban-landscapes-by-native-species-with-different-phenologies-and-life-history-traits
#14
Tina Harrison, Jason Gibbs, Rachael Winfree
Anthropogenic landscapes are associated with biodiversity loss and large shifts in species composition and traits. These changes predict the identities of winners and losers of future global change, and also reveal which environmental variables drive a taxon's response to land use change. We explored how the biodiversity of native bee species changes across forested, agricultural, and urban landscapes. We collected bee community data from 36 sites across a 75,000 km(2) region, and analyzed bee abundance, species richness, composition, and life history traits...
October 4, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28961806/differences-in-flight-activity-of-coleomegilla-maculata-and-hippodamia-convergens-coleoptera-coccinellidae-following-emergence-mating-and-reproduction
#15
Ahmed H Abdel-Wahab, J P Michaud, Mohamed H Bayoumy, Samir S Awadalla, Mohamed El-Gendy
The flight activity of Coleomegilla maculata DeGeer and Hippodamia convergens Guerin-Meneville (Coleoptera: Coccinellidae) was examined by observing tethered beetles in the laboratory. C. maculata were fed eggs of Ephestia kuehniella Zeller, as were larval H. convergens, whereas adult H. convergens were fed Melanaphis sacchari (Zehntner) to induce egg maturation; adults of both species received water and diluted honey. A spot of magnetic paint was applied to one elytrum of each beetle, which then adhered to a small neodymium magnet attached to a thread...
September 18, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28961393/development-of-antifouling-and-bactericidal-coatings-for-platelet-storage-bags-using-dopamine-chemistry
#16
Narges Hadjesfandiari, Marie Weinhart, Jayachandran N Kizhakkedathu, Rainer Haag, Donald E Brooks
Platelets have a limited shelf life, due to the risk of bacterial contamination and platelet quality loss. Most platelet storage bags are made of a mixture of polyvinyl chloride with a plasticizer, denoted as pPVC. To improve biocompatibility of pPVC with platelets and to inhibit bacterial biofilm formation, an antifouling polymer coating is developed using mussel-inspired chemistry. A copolymer of N,N-dimethylacrylamide and N-(3-aminopropyl)methacrylamide hydrochloride is synthesized and coupled with catechol groups, named DA51-cat...
September 29, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28958023/comparison-of-self-report-indices-of-major-mobility-disability-to-failure-on-the-400-meter-walk-test-the-life-study
#17
Haiying Chen, W Jack Rejeski, Thomas M Gill, Jack Guralnik, Abby C King, Anne Newman, Steven N Blair, David Conroy, Christine Liu, Todd Manini, Marco Pahor, Walter T Ambrosius, Michael E Miller
Background: The objective assessment of major mobility disability (objective MMD) by a 400-meter walk test (400 MWT) is important but not always practical. Previous research on the relationship between self-reported MMD (SR MMD) and objective MMD is sparse and limited to cross-sectional data. Methods: We evaluated agreement between SR MMD and objective MMD using longitudinal data from the Lifestyle Interventions for Elders (LIFE) study. The SR MMD indices were defined based on having a lot of difficulty or inability to walk a quarter of a mile (SR-1/4MILE), walk several blocks (SR-BLOCKS), and climb one flight of stairs (SR-STAIRS)...
August 9, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28952523/comparative-n-glycosylation-analysis-of-the-fc-portions-of-a-chimeric-human-coagulation-factor-viii-and-immunoglobulin-g1
#18
Christoph Kannicht, Mario Kröning, Barbara A Solecka-Witulska, Guido Kohla, Julia Rosenlöcher
Prevention and treatment of bleeding in patients suffering from hemophilia A are inconvenient due to repeated intravenous infusions owing to the short half-life of coagulation factor VIII (FVIII) in circulation. Besides (glyco-)pegylation of the FVIII molecule, a bioengineering approach comprises the protein fusion to Fc-immunoglobulin (Ig)G that mediate protection from clearance or degradation via binding to the neonatal Fc receptor. While human-like N-glycosylation of recombinant FVIII is known to be crucial for the clotting factor's quality and function, the particular glycosylation of the fused Fc portion has not been investigated in detail so far, despite its known impact on Fcγ receptor binding...
May 17, 2017: Bioengineering
https://www.readbyqxmd.com/read/28943053/our-experience-with-500-patients-with-benign-paroxysmal-positional-vertigo-reexploring-aetiology-and-reevaluating-mri-investigation
#19
Fei Tan, Constantin Bartels, Rory McConn Walsh
OBJECTIVE: To explore the aetiology of and to evaluate the importance of MRI investigation on the posterior semicircular canal benign paroxysmal positional vertigo in an Irish population. METHODS: A retrospective observational study of 500 patients with posterior semicircular canal benign paroxysmal positional vertigo, diagnosed and treated by the senior author over a 10-year period. Most patients underwent an MRI brain and inner ear, following the same scan protocol...
September 21, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28938418/androgens-support-male-acrobatic-courtship-behavior-by-enhancing-muscle-speed-and-easing-the-severity-of-its-tradeoff-with-force
#20
Matthew J Fuxjager, Meredith C Miles, Franz Goller, John Petersen, Julia Yancey
Steroid hormone action in the brain regulates many animals' elaborate social displays used for courtship and competition, but it is increasingly recognized that the periphery may also be a site for potent steroidal modulation of complex behavior. However, the mechanisms of such "bottom-up" regulation of behavioral outflow are largely unclear. To study this problem, we examined how androgenic sex hormones act through the skeletal muscular system to mediate elaborate courtship acrobatics in a tropical bird called the golden-collared manakin...
November 1, 2017: Endocrinology
keyword
keyword
85046
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"