scholarly journals The role of wax and resin in the nestmate recognition system of a stingless bee, Tetragonisca angustula

2011 ◽  
Vol 66 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Sam M. Jones ◽  
Jelle S. van Zweden ◽  
Christoph Grüter ◽  
Cristiano Menezes ◽  
Denise A. Alves ◽  
...  
Keyword(s):  
Nestmate Recognition ◽  
Recognition System ◽  
Stingless Bee ◽  
Tetragonisca Angustula

scholarly journals The role of floral oils in the nestmate recognition system of honey bees (Apis melliferaL.)

Apidologie ◽  
2000 ◽  
Vol 31 (3) ◽  
pp. 357-365 ◽  
Author(s):  
Stephen G. Downs ◽  
Francis L.W. Ratnieks ◽  
Sarah L. Jefferies ◽  
Helen E. Rigby
Keyword(s):  
Honey Bees ◽  
Nestmate Recognition ◽  
Recognition System

Nestmate recognition in a stingless bee: does the similarity of chemical cues determine guard acceptance?

2008 ◽  
Vol 75 (3) ◽  
pp. 1165-1171 ◽  
Author(s):  
Tulio M. Nunes ◽  
Fabio S. Nascimento ◽  
Izabel C. Turatti ◽  
Norberto P. Lopes ◽  
Ronaldo Zucchi
Keyword(s):  
Nestmate Recognition ◽  
Chemical Cues ◽  
Stingless Bee

An Investigation into the Role of Solvation in a Well Characterized Chiral Recognition System

1991 ◽  
Vol 14 (11) ◽  
pp. 2027-2042 ◽  
Author(s):  
William H. Pirkle ◽  
Christopher J. Welch
Keyword(s):  
Chiral Recognition ◽  
Recognition System

IMAGE RECOGNITION BY INTEGRATION OF CONNECTIONIST AND SYMBOLIC APPROACHES

1995 ◽  
Vol 09 (03) ◽  
pp. 485-515 ◽  
Author(s):  
F. ROLI ◽  
S. B. SERPICO ◽  
G. VERNAZZA
Keyword(s):  
Image Recognition ◽  
Magnetic Resonance Image ◽  
Contextual Information ◽  
Recognition System ◽  
Recognition Problem ◽  
Training Process ◽  
Neural Architecture ◽  
Recognition Phase ◽  
Abstraction Levels

This paper presents a methodology for integrating connectionist and symbolic approaches to 2D image recognition. The proposed integration paradigm exploits the synergy of the two approaches for both the training and the recognition phases of an image recognition system. In the training phase, a symbolic module provides an approximate solution to a given image-recognition problem in terms of symbolic models. Such models are hierarchically organized into different abstraction levels, and include contextual descriptions. After mapping such models into a complex neural architecture, a neural training process is carried out to optimize the solution of the recognition problem. The so-obtained neural networks are used during the recognition phase for pattern classification. In this phase, the role of symbolic modules consists of managing complex aspects of information processing: abstraction levels, contextual information, and global recognition hypotheses. A hybrid system implementing the proposed integration paradigm is presented, and its advantages over single approaches are assessed. Results on Magnetic Resonance image recognition are reported, and comparisons with some well-known classifiers are made.

Role of cuticular lipids in nestmate recognition of the European hornet Vespa crabro L. (Hymenoptera, Vespidae)

1998 ◽  
Vol 45 (2) ◽  
pp. 169-179 ◽  
Author(s):  
J. Ruther ◽  
S. Sieben ◽  
B. Schricker
Keyword(s):  
Nestmate Recognition ◽  
Cuticular Lipids ◽  
Vespa Crabro

scholarly journals Physicochemical characterization, antioxidant and antifungal activity of three stingless bee pollen aggregate (Apidae: Meliponini) from Soconusco, Chiapas

2020 ◽  
Vol 39 (1) ◽  
Author(s):  
Víctor Albores-Flores ◽  
Erick Saavedra-Camacho ◽  
José Alfonso López-García ◽  
Julieta Grajales-Conesa ◽  
Liliana Carolina Córdova-Albores
Keyword(s):  
Antifungal Activity ◽  
Colletotrichum Gloeosporioides ◽  
Physicochemical Characterization ◽  
Stingless Bee ◽  
Melipona Beecheii ◽  
Bee Pollen ◽  
Scaptotrigona Mexicana ◽  
Tetragonisca Angustula

<p>La interacción planta-abeja puede generar productos de la colmena con diferentes características fisicoquímicas, bioactivos y actividad antimicrobiana. Por lo cual, en este trabajo se determinó la composición química de conglomerados o agregados de polen colectados de 12 colmenas establecidas en Chiapas, México, en los municipios Tapachula, Mazatán y Cacahoatán, dentro de tres meliponarios comerciales asociados a las especies: <em>Melipona beecheii</em>, <em>Scaptotrigona mexicana</em> y <em>Tetragonisca angustula</em>. Asimismo, se evaluó el efecto de los agregados de polen en <em>Colletotrichum gloeosporioides</em>. Se encontró una composición química muy diversa independientemente de la especie de abeja. El polen obtenido de colmenas con <em>M. beecheii</em> tuvieron la mayor cantidad de fenoles, flavonoides y acidez libre. Estas propiedades, en adición de la capacidad antioxidante (trolox), glucosa y pH, estuvieron asociados a la inhibición del crecimiento <em>in vitro</em> de<em> C. gloeosporioides</em>. La velocidad de crecimiento radial del hongo durante nueve días fue de 0.013 a 0.009 mm h-1 con extractos de polen, 44 % menor que el efecto del clorotalonil. La actividad antifúngica de los extractos de polen fue de 65 y 37 % para <em>M. beecheii</em>, 57 y 16 % para <em>T. angustula</em> y 60 y 30 % para S. mexicana, respecto al tratamiento testigo y a la dosis más alta de clorotalonil, respectivamente.</p>

scholarly journals Lipoprotein Drug Delivery Vehicles for Cancer: Rationale and Reason

2019 ◽  
Vol 20 (24) ◽  
pp. 6327 ◽  
Author(s):  
Jaideep Chaudhary ◽  
Joseph Bower ◽  
Ian R. Corbin
Keyword(s):  
Neutral Lipids ◽  
Physiological Role ◽  
Recognition System ◽  
Molecular Data ◽  
Plasma Lipoproteins ◽  
Molecular Evidence ◽  
Nanoparticle Delivery ◽  
Drug Delivery Vehicles ◽  
Delivery Vehicles

Lipoproteins are a family of naturally occurring macromolecular complexes consisting amphiphilic apoproteins, phospholipids, and neutral lipids. The physiological role of mammalian plasma lipoproteins is to transport their apolar cargo (primarily cholesterol and triglyceride) to their respective destinations through a highly organized ligand-receptor recognition system. Current day synthetic nanoparticle delivery systems attempt to accomplish this task; however, many only manage to achieve limited results. In recent years, many research labs have employed the use of lipoprotein or lipoprotein-like carriers to transport imaging agents or drugs to tumors. The purpose of this review is to highlight the pharmacologic, clinical, and molecular evidence for utilizing lipoprotein-based formulations and discuss their scientific rationale. To accomplish this task, evidence of dynamic drug interactions with circulating plasma lipoproteins are presented. This is followed by epidemiologic and molecular data describing the association between cholesterol and cancer.

Genetic variability in captive populations of the stingless bee Tetragonisca angustula

Genetica ◽  
2016 ◽  
Vol 144 (4) ◽  
pp. 397-405 ◽  
Author(s):  
Leandro R. Santiago ◽  
Flávio O. Francisco ◽  
Rodolfo Jaffé ◽  
Maria C. Arias
Keyword(s):  
Genetic Variability ◽  
Stingless Bee ◽  
Captive Populations ◽  
Tetragonisca Angustula
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