keyword
MENU ▼
Read by QxMD icon Read
search

Hives

keyword
https://www.readbyqxmd.com/read/28334279/population-growth-of-varroa-destructor-acari-varroidae-in-colonies-of-russian-and-unselected-honey-bee-hymenoptera-apidae-stocks-as-related-to-numbers-of-foragers-with-mites
#1
Gloria DeGrandi-Hoffman, Fabiana Ahumada, Robert Danka, Mona Chambers, Emily Watkins DeJong, Geoff Hidalgo
Varroa (Varroa destructor Anderson and Trueman) is an external parasite of honey bees (Apis mellifera L.) and a leading cause of colony losses worldwide. Varroa populations can be controlled with miticides, but mite-resistant stocks such as the Russian honey bee (RHB) also are available. Russian honey bee and other mite-resistant stocks limit Varroa population growth by affecting factors that contribute to mite reproduction. However, mite population growth is not entirely due to reproduction. Numbers of foragers with mites (FWM) entering and leaving hives also affect the growth of mite populations...
March 20, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334127/managed-bumble-bees-bombus-impatiens-hymenoptera-apidae-caged-with-blueberry-bushes-at-high-density-did-not-increase-fruit-set-or-fruit-weight-compared-to-open-pollination
#2
J W Campbell, J O'Brien, J H Irvin, C B Kimmel, J C Daniels, J D Ellis
Highbush blueberry (Vaccinium corymbosum L.) is an important crop grown throughout Florida. Currently, most blueberry growers use honey bees (Apis mellifera L.) to provide pollination services for highbush blueberries even though bumble bees (Bombus spp.) have been shown to be more efficient at pollinating blueberries on a per bee basis. In general, contribution of bumble bees to the pollination of commercial highbush blueberries in Florida is unknown. Herein, we determined if managed bumble bees could contribute to highbush blueberry pollination...
February 17, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28306579/continuous-epidural-analgesia-using-an-ester-linked-local-anesthetic-agent-2-chloroprocaine-during-labor-a-case-report
#3
Simon C Lee, Vanessa Moll
We report the use of the ester-linked local anesthetic, 2-chloroprocaine, for continuous epidural analgesia in a patient in labor with a history of allergic reaction to amide local anesthetics. The patient gave a reliable history of pruritus, hives, erythema, and swelling on her lower extremity after having received a preservative-free amide local anesthetic. This allergy had been confirmed by a dermatologist by her reports. The patient requested an epidural for labor analgesia that was placed successfully...
March 16, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28302451/chronic-idiopathic-urticaria-systemic-complaints-and-their-relationship-with-disease-and-immune-measures
#4
Judy C Doong, Kris Chichester, Eric T Oliver, Lawrence B Schwartz, Sarbjit S Saini
BACKGROUND: Patients with chronic idiopathic urticaria (CIU)/chronic spontaneous urticaria sometimes report systemic complaints (SCs). OBJECTIVE: We sought to determine the frequency and characteristics of SCs among patients with CIU, as well as the association of SCs with disease measures, basophil histamine release, and serum tryptase. METHODS: Adult patients with CIU were recruited from a university allergy clinic. Patients completed a disease symptom survey and underwent blood sampling for subsequent basophil histamine release and serum tryptase measurement...
March 13, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28301466/genome-editing-bioethics-shows-the-way
#5
Carolyn P Neuhaus, Arthur L Caplan
When some scientists hear the word "bioethics," they break out in intellectual hives. They shouldn't. Good bioethics is about enabling science to move forward. Bioethics pushes scientists to acknowledge that they operate not within a vacuum but within a society in which diverse perspectives and values must be engaged. Bioethicists give voice to those divergent perspectives and provide a framework to facilitate informed and inclusive discussions that spur progress, rather than stall it. The field is needed to advance cutting-edge biomedical research in domains in which the benefits to be had are enormous, such as genome editing, but ethical concerns persist...
March 2017: PLoS Biology
https://www.readbyqxmd.com/read/28297945/multifractality-in-individual-honeybee-behavior-hints-at-colony-specific-social-cascades-reanalysis-of-radio-frequency-identification-data-from-five-different-colonies
#6
Nicole S Carver, Damian G Kelty-Stephen
Honeybees (Apis mellifera) exhibit complex coordination and interaction across multiple behaviors such as swarming. This coordination among honeybees in the same colony is remarkably similar to the concept of informational cascades. The multifractal geometry of cascades suggests that multifractal measures of individual honeybee activity might carry signatures of these colony-wide coordinations. The present work reanalyzes time stamps of entrances to and exits from the hive captured by radio-frequency identification (RFID) sensors reading RFID tags on individual bees...
February 2017: Physical Review. E
https://www.readbyqxmd.com/read/28295198/analysis-of-disease-activity-categories-in-chronic-spontaneous-idiopathic-urticaria
#7
D Stull, D McBride, H Tian, A Gimenez Arnau, M Maurer, A Marsland, M-M Balp, S Khalil, C Grattan
BACKGROUND: Measurement of disease activity guides treatment of chronic spontaneous urticaria (CSU). A weekly Urticaria Activity Score-here, the average of twice-daily patient assessment of itch and hives scores summed over 1 week (UAS7TD )-measures severity from 0 to 42. Insufficient evidence exists whether disease activity states, defined by categorical UAS7TD scores, correlate with other patient-reported outcomes and treatment response. OBJECTIVE: To evaluate and compare categorical UAS7TD scores with selected measures of disease-related quality of life and impact...
March 13, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28294420/chronic-urticaria-in-the-real-life-clinical-practice-setting-in-sweden-norway-and-denmark-baseline-results-from-the-non-interventional-multicentre-aware-study
#8
S F Thomsen, E C Pritzier, C D Anderson, N Vaugelade-Baust, R Dodge, A-K Dahlborn, C Vestergaard
BACKGROUND: Chronic urticaria (CU) is characterised by the recurrence of itchy hives and/or angioedema for more than six weeks. AWARE (A World-wide Antihistamine-Refractory Chronic Urticaria Patient Evaluation) is a multinational study designed to document the real-life treatment situation, burden of disease, and clinical resource usage of H1-antihistamine refractory CU patients. OBJECTIVE: To examine baseline data from Scandinavian AWARE patients. METHODS: AWARE is a prospective, non-interventional, multinational, umbrella design study, which includes adults (≥18 years) with a confirmed CU diagnosis (>2 months) that is refractory to H1-antihistamines...
March 10, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28291793/antibiotic-exposure-perturbs-the-gut-microbiota-and-elevates-mortality-in-honeybees
#9
Kasie Raymann, Zack Shaffer, Nancy A Moran
Gut microbiomes play crucial roles in animal health, and shifts in the gut microbial community structure can have detrimental impacts on hosts. Studies with vertebrate models and human subjects suggest that antibiotic treatments greatly perturb the native gut community, thereby facilitating proliferation of pathogens. In fact, persistent infections following antibiotic treatment are a major medical issue. In apiculture, antibiotics are frequently used to prevent bacterial infections of larval bees, but the impact of antibiotic-induced dysbiosis (microbial imbalance) on bee health and susceptibility to disease has not been fully elucidated...
March 2017: PLoS Biology
https://www.readbyqxmd.com/read/28288794/stress-mediated-allee-effects-can-cause-the-sudden-collapse-of-honey-bee-colonies
#10
Ross D Booton, Yoh Iwasa, James A R Marshall, Dylan Z Childs
The recent rapid decline in global honey bee populations could have significant implications for ecological systems, economics and food security. No single cause of honey bee collapse has yet to be identified, although pesticides, mites and other pathogens have all been shown to have a sublethal effect. We present a model of a functioning bee hive and introduce external stress to investigate the impact on the regulatory processes of recruitment to the forager class, social inhibition and the laying rate of the queen...
March 10, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28287445/bee-an-object-oriented-agent-based-simulator-for-honey-bee-colonies
#11
Matthew Betti, Josh LeClair, Lindi M Wahl, Mair Zamir
We present a model and associated simulation package (www.beeplusplus.ca) to capture the natural dynamics of a honey bee colony in a spatially-explicit landscape, with temporally-variable, weather-dependent parameters. The simulation tracks bees of different ages and castes, food stores within the colony, pollen and nectar sources and the spatial position of individual foragers outside the hive. We track explicitly the intake of pesticides in individual bees and their ability to metabolize these toxins, such that the impact of sub-lethal doses of pesticides can be explored...
March 10, 2017: Insects
https://www.readbyqxmd.com/read/28284118/agricultural-pesticides-and-veterinary-substances-in-uruguayan-beeswax
#12
Jorge Harriet, Juan Pablo Campá, Mauricio Grajales, Christophe Lhéritier, Antonio Gómez Pajuelo, Yamandú Mendoza-Spina, Leonidas Carrasco-Letelier
Over the last decade, Uruguay has expanded and intensified its rainfed crop production. This process has affected beekeeping in several ways: for example, by reducing the space available. This has increased the density of apiaries, the risk of varroosis and acaricide use. Additionally, the dominance of no-tillage crops has increased the frequencies of application and of loads of pesticides in regions where such crops share the land with beekeeping and honey production. Therefore, the exposure of bees to xenobiotics (agricultural pesticides and veterinary products) has increased in line with pollution of hives and their products...
February 28, 2017: Chemosphere
https://www.readbyqxmd.com/read/28279532/risk-assessment-of-pesticides-and-other-stressors-in-bees-principles-data-gaps-and-perspectives-from-the-european-food-safety-authority
#13
Agnès Rortais, Gérard Arnold, Jean-Lou Dorne, Simon J More, Giorgio Sperandio, Franz Streissl, Csaba Szentes, Frank Verdonck
Current approaches to risk assessment in bees do not take into account co-exposures from multiple stressors. The European Food Safety Authority (EFSA) is deploying resources and efforts to move towards a holistic risk assessment approach of multiple stressors in bees. This paper describes the general principles of pesticide risk assessment in bees, including recent developments at EFSA dealing with risk assessment of single and multiple pesticide residues and biological hazards. The EFSA Guidance Document on the risk assessment of plant protection products in bees highlights the need for the inclusion of an uncertainty analysis, other routes of exposures and multiple stressors such as chemical mixtures and biological agents...
March 6, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28258722/3-acyl-dihydroflavonols-from-poplar-resins-collected-by-honey-bees-are-active-against-the-bee-pathogens-paenibacillus-larvae-and-ascosphaera-apis
#14
Michael B Wilson, Alison D Pawlus, Doug Brinkman, Gary Gardner, Adrian D Hegeman, Marla Spivak, Jerry D Cohen
Honey bees, Apis mellifera, collect antimicrobial plant resins from the environment and deposit them in their nests as propolis. This behavior is of practical concern to beekeepers since the presence of propolis in the hive has a variety of benefits, including the suppression of disease symptoms. To connect the benefits that bees derive from propolis with particular resinous plants, we determined the identity and botanical origin of propolis compounds active against bee pathogens using bioassay-guided fractionation against the bacterium Paenibacillus larvae, the causative agent of American foulbrood...
March 1, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28256316/the-exposure-of-honey-bees-apis-mellifera-hymenoptera-apidae-to-pesticides-room-for-improvement-in-research
#15
REVIEW
Johanna Benuszak, Marion Laurent, Marie-Pierre Chauzat
Losses of honey bees have been repeatedly reported from many places worldwide. The widespread use of synthetic pesticides has led to concerns regarding their environmental fate and their effects on pollinators. Based on a standardised review, we report the use of a wide variety of honey bee matrices and sampling methods in the scientific papers studying pesticide exposure. Matrices such as beeswax and beebread were very little analysed despite their capacities for long-term pesticide storage. Moreover, bioavailability and transfer between in-hive matrices were poorly understood and explored...
February 27, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28245532/volume-and-density-of-microglomeruli-in-the-honey-bee-mushroom-bodies-do-not-predict-performance-on-a-foraging-task
#16
Byron N Van Nest, Ashley E Wagner, Glen S Marrs, Susan E Fahrbach
The mushroom bodies (MBs) are insect brain regions important for sensory integration, learning, and memory. In adult worker honey bees (Apis mellifera), the volume of neuropil associated with the MBs is larger in experienced foragers compared with hive bees and less experienced foragers. In addition, the characteristic synaptic structures of the calycal neuropils, the microglomeruli, are larger but present at lower density in 35-day-old foragers relative to 1-day-old workers. Age- and experience-based changes in plasticity of the MBs are assumed to support performance of challenging tasks, but the behavioral consequences of brain plasticity in insects are rarely examined...
February 28, 2017: Developmental Neurobiology
https://www.readbyqxmd.com/read/28236279/oas-gene-family-expression-is-associated-with-hiv-related-neurocognitive-disorders
#17
C Sanfilippo, M R Pinzone, D Cambria, A Longo, M Palumbo, R Di Marco, F Condorelli, G Nunnari, L Malaguarnera, M Di Rosa
HIV-associated neurocognitive disorders are common in HIV-infected individuals, even in the combination antiretroviral therapy (c-ART) era. Several mechanisms are involved in neuronal damage, including chronic inflammation immune activation. Mammalian 2'-5'-oligoadenylate synthetase (OAS) genes are produced in response to interferon (IFN), mainly by monocytes, and exert their antiviral functions by activation of RNase L that degrades viral and cellular RNAs. In this study, we aimed at exploring OAS gene family RNA expression in simian immunodeficiency virus encephalitis (SIVE), in HIV-associated neurocognitive disorders (HAND), and in HIV-associate dementia (HAD)...
February 24, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28221699/beehive-fences-as-a-multidimensional-conflict-mitigation-tool-for-farmers-coexisting-with-elephants
#18
Lucy E King, Fredrick Lala, Hesron Nzumu, Emmanuel Mwambingu, Iain Douglas-Hamilton
Increasing habitat fragmentation and human population growth in Africa has resulted in an escalation in human-elephant conflict between small-scale farmers and free-ranging African elephants (Loxodonta Africana). In 2012 Kenya Wildlife Service (KWS) implemented the national 10-year Conservation and Management Strategy for the Elephant in Kenya, which includes an action aimed at testing whether beehive fences can be used to mitigate human-elephant conflict. From 2012 to 2015, we field-tested the efficacy of beehive fences to protect 10 0...
February 21, 2017: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/28207182/immune-system-stimulation-by-the-gut-symbiont-frischella-perrara-in-the-honey-bee-apis-mellifera
#19
Olivier Emery, Konstantin Schmidt, Philipp Engel
Gut bacteria engage in various symbiotic interactions with their host and impact gut immunity and homeostasis in different ways. In honey bees, the gut microbiota is composed of a relatively simple, but highly specialized bacterial community. One of its members, the gammaproteobacterium Frischella perrara induces the so-called scab phenotype, a dark-colored band that develops on the epithelial surface of the pylorus. To understand the underlying host response, we analyzed transcriptome changes in the gut in response to bacterial colonization...
February 16, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28205632/using-dna-metabarcoding-to-investigate-honey-bee-foraging-reveals-limited-flower-use-despite-high-floral-availability
#20
Natasha de Vere, Laura E Jones, Tegan Gilmore, Jake Moscrop, Abigail Lowe, Dan Smith, Matthew J Hegarty, Simon Creer, Col R Ford
Understanding which flowers honey bees (Apis mellifera) use for forage can help us to provide suitable plants for healthy honey bee colonies. Accordingly, honey DNA metabarcoding provides a valuable tool for investigating pollen and nectar collection. We investigated early season (April and May) floral choice by honey bees provided with a very high diversity of flowering plants within the National Botanic Garden of Wales. There was a close correspondence between the phenology of flowering and the detection of plants within the honey...
February 16, 2017: Scientific Reports
keyword
keyword
29880
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"