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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 36 (1964), S. 2350-2350 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Insectes sociaux 23 (1976), S. 495-512 
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Nous avons étudié en détail le nid naturel de l'Abeille pour mieux comprendre l'écologie de cette espèce. Afin de décrire le site du nid, nous avons fait l'inspection extérieure de 39 nids dans les arbres creux. Pour en étudier la structure, nous avons récolté et disséqué 21 d'entre eux. Les arbres où sont trouvés les nids appartiennent à des genres divers. Les cavités qui abritent les nids sont à peu près cylindriques; elles sont étroites et allongées selon la verticale. La plupart des cavités ont un volume de 30 à 60 litres et se localisent au pied des arbres. Située à la base du nid, l'entrée est de 10 à 40 cm2. A l'extérieur de l'entrée, l'écorce auparavant rugucuse est souvent aplanie par les Abeilles. A l'intérieur du nid, une couche mince de résine végétale durcie (propolis) recouvre les parois de la cavité. Les rayons sont rattachés aux parois par le haut et les côtés, mais les Abcilles laissent de petits passages le long des rayons. L'organisation fondamentale du nid comporte le stockage du miel dans les alvéoles supérieurs, l'élevage du couvain dans les alvéoles inférieurs et le stockage du pollen dans les alvéoles intermédiaires. A cette répartition sont associées des différences de structure dans les alvéoles. Par rapport à ceux qui contiennent du miel, les alvéoles à couvain sont généralement de couleur plus foncée et sont plus uniformes dans leur profondeur et leur forme. Les alvéoles de mâles sont localisés à la périphérie du nid à couvain. La comparaison entre nids du genreApis indique que certains caractères avancés du nid d'Apis mellifera ont évolué en réponse à l'adoption par cette espèce de cavités d'arbres comme sites de nidification.
    Notes: Summary The natural honey bee nest was studied in detail to better understand the honey bee's natural living conditions. To describe the nest site we made external observations on 39 nests in hollow trees. We collected and dissected 21 of these tree nests to describe the nest architecture. No one tree genus strongly predominates among bee trees. Nest cavities are vertically elongate and approximately cylindrical. Most are 30 to 60 liters in volume and at the base of trees. Nest entrances tend to be small, 10 to 40 cm2, and at the nest bottom. Rough bark outside the entrance is often smoothed by the bees. Inside the nest, a thin layer of hardened plant resins (propolis) coats the cavity walls. Combs are fastened to the walls along their tops and sides, but bees leave small passageways along the comb edges. The basic nest organization is honey storage above, brood nest below, and pollen storage in between. Associated with this arrangement are differences in comb structure. Compared to combs used for honey storage, combs of the brood nest are generally darker and more uniform in width and in cell form. Drone comb is located on the brood nest's periphery. Comparisons amongApis nests indicate the advanced characters inApis mellifera nests arose in response toApis mellifera's adoption of tree cavities for nest sites.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Insectes sociaux 32 (1985), S. 217-220 
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Honigbienen (Apis mellifera) bevorzugen ehemals bewohnte Brutkästen bei der Wahl zwischen noch nie benutzten und vormals von Bienen bewohnten Brutkästen mit Wabe (p=0.032). Dieses Verhalten ist möglicherweise adaptiv in Bezug auf Energieersparnis, verglichen mit einer neuen Kolonie. Die Wahl eines vormals bewohnten Brutkästens könnte jedoch den einfachen Grund haben, daß bereits benutzte Brükästen mit Wabe für die Bienen auffälliger und leichter zu finden sind.
    Notes: Summary Given a choice between nesting in boxes which had been previously occupied by bees, containing comb, and boxes never occupied, honey bees (Apis mellifera) show a significant (p=0.032) preference for the previously occupied cavities. This behavior may be adaptive in terms of energetic savings to a new colony, or cavities with comb may simply be more conspicous.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Insectes sociaux 31 (1984), S. 221-237 
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Resume La production de cellules royales après orphelinage accidentel fut examinée dans des colonies d'abeilles de différentes races européennes. Treize colonies ont été quotidiennement placées dans un orphelinat expérimental après l'apparition d'une nouvelle reine. Des observations ont été faites sur le nombre de cellules, le “timing” de la reconstruction des cellules royales, l'emplacement des cellules à l'intérieur du nid, l'âge des larves sélectionnées en vue de l'élevage des reines, le taux de mortalité des cellules et le phénomène d'exhibition de la glande de Nassanoff des ouvrières dans les colonies orphelines. On a pu détecter la perte d'une reine après 6 à 12 heures; celle-ci fut tout d'abord indiquée par le fait qu'un certain nombre d'abeilles exhibent leur organe odorant lors de l'ouverture de la ruche, et l'élaboration de la cupule royale. Le nombre des ouvrières exposées a atteint son record entre 12 et 24 heures puis s'est mis à décroître, alors que les cellules royales augmentaient. Le temps requis pour l'initiation des cellules royales a varié entre 12 et 48 heures, selon les colonies. Les cellules royales de remplacement ont commencé ordinairement à se former sur des larves d'ouvrières de moins de 2 jours (64,7%), mais des cellules se sont développées sur des larves âgées de 3 (25,3%) à 4 jours (10,0%). Sur 268 cellules, 2 étaient uniquement formées à partir d'œufs, dont un seul survivait et devenait une larve mâle. Dans six des colonies, des cellules royales se sont développées à partir de larves mâles, mais celles-ci furent immédiatement détruites soit avant, soit juste après l'operculation. Le taux de développement de cellules royales était de 9,3% par rapport aux cellules mâles. Le taux de développement de nouvelles cellules royales après la perte d'une reine a été assez élevé pendant une période de 2 à 4 jours, mais s'est mis à décroître bien que de nouvelles cellules royales se formaient entre 8 et 9 jours après le début de l'orphelinage. Nous avons noté un taux record de cellules produites par une colonie vers le 3e ou 4e jour, qui s'est ensuite réparti de façon plus égale. Le taux de mortalité des cellules a alors provoqué la baisse du nombre total des cellules. Le nombre des cellules royales des colonies a varié entre 11 et 49, c'est-à-dire une moyenne de 20,4; le taux de mortalité des cellules s'est avéré de 39,1%. Les cellules royales étaient bien distribuées dans tout le nid à couvain, mais surtout vers le fond du cadre, et loin de l'entrée de la ruche.
    Notes: Summary Emergency queen cell production was examined in honey bee colonies of mixed European races. Thirteen colonies were dequeened and followed on a daily basis until after queen emergence. Observations were made on the number of cells, the temporal sequence of queen cell construction, cell location within the nest, the age of larvæ selected for queen rearing, mortality of immature queens and the scenting behavior of workers in queenless colonies. Queen loss was detected within 6–12 hours and was first indicated by an increase in scenting behavior (on colony disturbance) and queen cup construction. The number of scenting workers reached a peak in 12–24 hours and then declined, as queen cell numbers increased. The time of queen cell initiation varied from 12–48 hours in different colonies. Emergency queen cells were usually started over worker larvæ less than 2 days of age (64.7%), but cells were built over 3 (25.3%) and 4 (10.0%) day old larvæ. Only 2 of 268 cells (0.8 %) were started over eggs; one survived and developed into a drone larva. In 6 colonies emergency queen cells were started over drone larvæ but these were destroyed immediately before or shortly after capping. The overall rate for queen cell construction over drone larvæ was 9.3%. The rate at which new queen cells were started after queen loss was high for two to four days, but then declined although new queen cells were started as late as eight or nine days after queen removal. The number of cells produced by a colony usually peaked by the third or fourth day and then leveled. Slight declines in total cell number often occurred because of cell mortality. The number of queen cells started by colonies varied from 11–49 with a mean of 20.4; cell mortality averaged 39.1%. Queen cells were well distributed throughout the brood nest but placement was biased toward the bottom of the frames and away from the entrance.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 43 (1978), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Sprouting of red kidney beans resulted in a marked increase in the digestibility coefficient of both raw, 29.5% increased to 66.4%, and cooked beans, 69.3% increased to 84.4%. Sprouting also resulted in reduction of trypsin inhibitor activity by approximately 50%. The trypsin inhibitor from red kidney bean was fairly heat stable, inhibited the action of chymotrypsin, papain and pepsin at higher concentrations. In was fractionated into two components yielding molecular weights of 8000 and 5200 daltons. The content of the globulin E protein fraction decreased by approximately one-third as a result of sprouting. The specific activity of trypsin inhibitor activity in the globulin fraction was lower after sprouting. The digestibility coefficient of the globulin fraction, 62.5%, with its high trypsin inhibitor content was much higher than the whole beans 29.5%. The globulin fraction from bean sprouts had somewhat improved digestibility (73.4%), compared to the globulins from intact beans. It is concluded that the beneficial effects of sprouting on protein digestibility can not be attributed totally to a decline in trypsin inhibitor activity although it would appear to be a contributing factor.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 198 (1963), S. 295-296 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] At present there is no standard procedure by which the potency of the venom from the stinging Hymenoptera (bees, ants and wasps) may be determined nor is there any standard unit available to uniformly express its potency. The venom from the common honey bee, Apis mellifera L., is used more ...
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 194 (1962), S. 605-605 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Nedel3 first extirpated mandibular glands from a living queen. One of these queens did not mate when given the opportunity, and on this basis he suggested that the mandibular gland was necessary for mating to occur. Gary and Morse4 and Gary5 independently developed another technique for mandibular ...
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 0375-9474
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 0920-5632
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Nuclear Physics B (Proceedings Supplements) 14 (1990), S. 61-67 
    ISSN: 0920-5632
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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