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1

Isozymes analysis of the golden cuttlefish Sepia esculenta (Cephalopoda: Sepiidae)  

NASA Astrophysics Data System (ADS)

Thirty-nine isozymes in four tissues (mantle muscle, buccal bulb muscle, eye and liver) of Sepia esculenta were screened for enzymatic analysis using starch gel electrophoretic technique. Eighteen enzymes (G3PDH, LDH, MDH, MEP, IDHP, PGDH, GRS, NP, AAT, CK, AK, EST, ALP, ACP, FBP, MPI, GPI and PGM) show strong activities and good convergence in zymogram. They are proved to be suitable genetic markers in Sepia esculenta. Among the tissues used, mantle muscle is the best for electrophoretic analysis of isozymes. Eye and liver are fairly good for some special enzymes, such as LDH, EST, MPI, etc. Twenty-six loci are detected. The proportion of polymorphic loci is 0.115 in the Qingdao sample and 0.153 in the Rizhao sample (P<0.99). The mean values of the observed and expected heterozygosity per locus of Qingdao sample are 0.016 and 0.017, while those of the Rizhao sample are 0.023 and 0.025 respectively.

Zheng, Xiaodong; Zhao, Jianmin; Xiao, Shu; Wang, Rucai; Wang, Shidang; Zhou, Weiwu

2004-04-01

2

Histological and histochemical analyses of the cuttlebone sac of the golden cuttlefish Sepia esculenta  

NASA Astrophysics Data System (ADS)

The secretion function of mantle is closely related to shell formation in some bivalves and gastropods. Up to now, few researches have been reported for cuttlebone formation in the class Cephalopoda. In this study, the structure and secretion function of cuttlebone sac of the golden cuttlefish Sepia esculenta was analyzed using the histological and histochemical methods. The results showed that high and columnar cells located in sac epithelium, and flat cells existed near the base membrane. A lot of fibroblasts were found in the lateral mantle collective tissue. Some mucus, mucopolysaccharide and alkaline phosphatase (ALP) were found in the sac. The ultrastructural characteristics of Quasi-connective-tissue-calcium cells (QCTCC) were observed using a transmission electron microscope (TEM). The relationship between cuttlebone sac secretion function and shell formation was discussed.

Zheng, Xiaodong; Xiao, Shu; Wang, Zhaoping; Wang, Rucai

2007-10-01

3

Color blindness and contrast perception in cuttlefish (Sepia officinalis) determined by a visual sensorimotor assay  

E-print Network

Color blindness and contrast perception in cuttlefish (Sepia officinalis) determined by a visual in which cuttlefish (Sepia officinalis) respond to visual stimuli (a black and white checkerboard to the cuttlefishÃ?s visual system. In both assays it was tested whether cuttlefish would show disruptive coloration

Hanlon, Roger T.

4

Spatial and temporal patterns of cuttlefish (Sepia officinalis) abundance and environmental influences a case study using  

E-print Network

Spatial and temporal patterns of cuttlefish (Sepia officinalis) abundance and environmental and temporal patterns of cuttlefish (Sepia officinalis) abundance and environmental influences ­ a case study Journal of Marine Science, 60: 1149­1158. The spatial and temporal distribution patterns of cuttlefish

Pierce, Graham

5

Bioaccumulation of inorganic Hg by the juvenile cuttlefish Sepia officinalis1 exposed to 203  

E-print Network

1 Bioaccumulation of inorganic Hg by the juvenile cuttlefish Sepia officinalis1 exposed to 203 Hg the juvenile common cuttlefish Sepia officinalis following exposures via seawater and food28 using sensitive radiotracer technique (203 Hg). The cuttlefish readily concentrated 203 Hg when29 exposed via seawater

Paris-Sud XI, Université de

6

Disruptive Body Patterning of Cuttlefish (Sepia officinalis) Requires Visual Information Regarding  

E-print Network

Disruptive Body Patterning of Cuttlefish (Sepia officinalis) Requires Visual Information Regarding of Sussex, Brighton, UK Cuttlefish (Sepia officinalis Linnaeus, 1758) on mixed light and dark gravel show of natural substrates that cuttlefish cue on visually are largely unknown. Therefore, we aimed to identify

Hanlon, Roger T.

7

ORIGINAL PAPER Color matching on natural substrates in cuttlefish, Sepia officinalis  

E-print Network

ORIGINAL PAPER Color matching on natural substrates in cuttlefish, Sepia officinalis Lydia M. Ma The camouflaging abilities of cuttlefish (Sepia officinalis) are remarkable and well known. It is commonly believed that cuttlefish--although color blind--actively match various colors of their immediate surroundings, yet

Hanlon, Roger T.

8

First experiments on the maternal transfer of metals in the cuttlefish Sepia officinalis  

E-print Network

1 First experiments on the maternal transfer of metals in the cuttlefish Sepia officinalis Thomas in the eggs of the cuttlefish Sepia officinalis via maternal transfer, using radiotracer techniques (110m Ag, 241 Am, 109 Cd, 60 Co, 134 Cs, 54 Mn, 75 Se and 65 Zn). The cuttlefish was fed daily

Paris-Sud XI, Université de

9

Bioaccumulation of PCBs in the cuttlefish Sepia officinalis from seawater, sediment and food pathways  

E-print Network

1 Bioaccumulation of PCBs in the cuttlefish Sepia officinalis from seawater, sediment and food.envpol.2004.07.010 #12;2 ABSTRACT The cuttlefish Sepia officinalis was selected as a model cephalopod to study PCB bioaccumulation via seawater, sediments and food. Newly hatched, juvenile cuttlefish were exposed

Paris-Sud XI, Université de

10

The use of background matching vs. masquerade for camouflage in cuttlefish Sepia officinalis  

E-print Network

The use of background matching vs. masquerade for camouflage in cuttlefish Sepia officinalis Kendra coloration Cephalopod a b s t r a c t Cuttlefish, Sepia officinalis, commonly use their visually. This laboratory study investigated whether cuttlefish preferentially camouflage themselves to resemble a three

California at Irvine, University of

11

ELECTROMYOGRAPHY OF THE FIN MUSCULATURE OF THE CUTTLEFISH SEPIA OFFICINALIS  

Microsoft Academic Search

Summary The musculature of the fins of the cuttlefish Sepia officinalis (Mollusca, Cephalopoda) was studied with electromyography to test predictions of the functional role of the various muscle masses. Previous research had shown the fins to consist of a tightly packed, three-dimensional array of muscle with distinct zones of anaerobic glycolytic and oxidative muscle fibres. In addition, a network of

WILLIAM M. KIER; KATHLEEN K. SMITH; JALEEL A. MIYAN

1989-01-01

12

A Complex Set of Sex Pheromones Identified in the Cuttlefish Sepia officinalis  

E-print Network

A Complex Set of Sex Pheromones Identified in the Cuttlefish Sepia officinalis Je´re´my Enault1 that are thought to induce the aggregation of mature cuttlefish in their egg-laying areas. Results: To facilitate generated from accessory sex glands of female cuttlefish. Our analysis yielded 223 unique sequences composed

Paris-Sud XI, Université de

13

Effects of Crowding on the Social Behavior of Cuttlefish (Sepia officinalis)  

Microsoft Academic Search

To evaluate the effect of crowding on cuttlefish (Sepia officinalis), a benthic cephalopod, the behavior of captive-reared cuttlefish was monitored for a period of 1 month. One group of 6 cuttlefish was housed in a tank 6.1 m in diameter (4.87 m 2 per cuttlefish); another group of 6 was housed in a tank 1.5 m in diameter (0.29 m

JEAN GEARY BOAL; REBECCA A. HYLTON; SUSAN A. GONZALEZ; ROGER T. HANLON

1999-01-01

14

Chemical composition and thermal property of cuttlefish ( Sepia pharaonis) muscle  

Microsoft Academic Search

The chemical composition and thermal property of cuttlefish (Sepia pharaonis) muscle were studied. The head and mantle contained 11.9–14.9% protein, 0.5% fat, 1.2–1.3% ash, and 0.6–1.8% collagen. Lipids from the head and mantle contained phospholipid as the major component (78.6–87.8% of total lipid), with 10.6–19.5% diglyceride. Polyunsaturated fatty acids constituted 50.3–54.9% of fatty acids with a high content of DHA

Amonrat Thanonkaew; Soottawat Benjakul; Wonnop Visessanguan

2006-01-01

15

Effect of Artificial Diets on Growth, Survival and Condition of Adult Cuttlefish, Sepia officinalis Linnaeus, 1758  

Microsoft Academic Search

The effects of artificial diets on growth and body condition of adult cuttlefish, Sepia officinalis were tested in two experiments. Supplemented prepared diets (fish myofibrillar protein concentrate) were fed during a 30-day and a 21-day experiments. Growth, feeding rate and food conversion of group-reared cuttlefish were analyzed. The first of these experiments tested four artificial diets, made with increasing levels

Pedro M. Domingues; Paul F. Dimarco; Jose P. Andrade; Phillip G. Lee

2005-01-01

16

Isolation and characterisation of collagen from the outer skin waste material of cuttlefish ( Sepia lycidas)  

Microsoft Academic Search

In an investigation into making more effective use of underutilized resources, collagen was prepared from the outer skin of cuttlefish (Sepia lycidas). Initial extraction of the cuttlefish outer skin in acetic acid yielded only 2% of collagen (dry weight basis). On subsequent digestion of the residue with 10% pepsin (w\\/v), a solubilized collagen (PSC) was obtained in a yield of

Takeshi Nagai; Eiji Yamashita; Kei Taniguchi; Norio Kanamori; Nobutaka Suzuki

2001-01-01

17

Respiration of the eggs of the giant cuttlefish Sepia apama  

Microsoft Academic Search

On the roofs of subtidal crevices, the giant cuttlefish (Sepia apama) of southern Australia lays clutches of lemon-shaped eggs which hatch after 3 to 5?mo. Diffusion of oxygen through the capsule\\u000a and chorion membrane to the perivitelline fluid and embryo was modelled using the equation V?\\u000a \\u000a O2?=?G\\u000a \\u000a O2(P\\u000a \\u000a O2out?P\\u000a \\u000a O2in), where V?\\u000a \\u000a O2?=?rate of oxygen consumption, G\\u000a \\u000a O2?=?oxygen conductance of

E. R. Cronin; R. S. Seymour

2000-01-01

18

Variation of heavy metal concentrations (Ag, Cd, Co, Cu, Fe, Pb, V, and Zn) during the life cycle of the common cuttlefish Sepia officinalis  

E-print Network

of the common cuttlefish Sepia officinalis Pierre Miramand* 1,2 , Paco Bustamante 1,2 , Daniel Bentley 1, cuttlebone and whole animal) of the common cuttlefish Sepia officinalis collected in the Bay of Seine has of cuttlefish, except for Ag which decreases as soon as cuttlefish migrate to open sea. This strongly suggests

Paris-Sud XI, Université de

19

Arm regeneration in two species of cuttlefish Sepia officinalis and Sepia pharaonis.  

PubMed

To provide quantitative information on arm regeneration in cuttlefish, the regenerating arms of two cuttlefish species, Sepia officinalis and Sepia pharaonis, were observed at regular intervals after surgical amputation. The third right arm of each individual was amputated to ~10-20 % starting length. Arm length, suction cup number, presence of chromatophores, and behavioral measures were collected every 2-3 days over a 39-day period and compared to the contralateral control arm. By day 39, the regenerating arm reached a mean 95.5 ± 0.3 % of the control for S. officinalis and 94.9 ± 1.3 % for S. pharaonis. The process of regeneration was divided into five separate stages based on macroscopic morphological events: Stage I (days 0-3 was marked by a frayed leading edge; Stage II (days 4-15) by a smooth hemispherical leading edge; Stage III (days 16-20) by the appearance of a growth bud; Stage IV (days 21-24) by the emergence of an elongated tip; and Stage V (days 25-39) by a tapering of the elongated tip matching the other intact arms. Behavioral deficiencies in swimming, body postures during social communication, and food manipulation were observed immediately after arm amputation and throughout Stages I and II, returning to normal by Stage III. New chromatophores and suction cups in the regenerating arm were observed as early as Stage II and by Stage IV suction cup number equaled that of control arms. New chromatophores were used in the generation of complex body patterns by Stage V. These results show that both species of cuttlefish are capable of fully regenerating lost arms, that the regeneration process is predictable and consistent within and across species, and provide the first quantified data on the rate of arm lengthening and suction cup addition during regeneration. PMID:23982859

Tressler, Jedediah; Maddox, Francis; Goodwin, Eli; Zhang, Zhuobin; Tublitz, Nathan J

2014-03-01

20

Principal features of the mating system of a large spawning aggregation of the giant Australian cuttlefish Sepia apama (Mollusca: Cephalopoda)  

Microsoft Academic Search

Every winter thousands of cuttlefish (Sepia apama Gray) aggregate to spawn along a restricted area of rocky reef in northern Spencer Gulf, South Australia. It is the only known spawning aggregation of cuttlefish in the world and represents an exceptional cuttlefish mating system. Spawning population structure and reproductive behavior were studied quantitatively by underwater visual transects and by focal-animal behavioral

K. Hall; R. T. Hanlon

2002-01-01

21

Symmetrical crypsis and asymmetrical signalling in the cuttlefish Sepia officinalis  

PubMed Central

The salience of bilateral symmetry to humans has led to the suggestion that camouflage may be enhanced in asymmetrical patterns. However, the importance of bilateral symmetry in visual signals (and overall morphology) may constrain the evolution of asymmetrical camouflage, resulting in the bilaterally symmetrical cryptic patterns that we see throughout the animal kingdom. This study investigates the cuttlefish (Sepia officinalis), which can control the degree of symmetry in its coloration. Ten juvenile S. officinalis were filmed in two behavioural contexts (cryptic and threatened) to test the prediction that cryptic patterns will be expressed more asymmetrically than an anti-predator signal known as the ‘deimatic display’. Cryptic body patterns, particularly those with a disruptive function, were found to exhibit a high degree of bilateral symmetry. By contrast, the components of the deimatic display were often expressed asymmetrically. These results are contrary to the predicted use of symmetry in defensive coloration, indicating that the role of symmetry in both crypsis and visual signalling is not as straightforward as previously suggested. PMID:16627281

Langridge, Keri V

2005-01-01

22

Subcellular distribution of Ag, Cd, Co, Cu, Fe, Mn, Pb and Zn in the digestive gland of the common cuttlefish Sepia officinalis  

E-print Network

of the common cuttlefish Sepia officinalis P. Bustamante1* , M. Bertrand2 , E. Boucaud-Camou3 , P. Miramand1 1 mainly associated to cytosolic compounds in the cuttlefish digestive gland. hal-00473915,version1-16Apr;2 ABSTRACT The subcellular fractionation of the digestive gland cells of the common cuttlefish Sepia

Paris-Sud XI, Université de

23

Assessment of the exposure pathway in the uptake and distribution of1 americium and cesium in cuttlefish (Sepia officinalis) at different stages of2  

E-print Network

in cuttlefish (Sepia officinalis) at different stages of2 its life cycle3 4 P. Bustamante1,2* , J-L. Teyssié1 (134 Cs) by the common cuttlefish20 Sepia officinalis. Uptake and loss kinetics of the radionuclides in juveniles.23 Following a short seawater exposure, cuttlefish accumulated 241 Am and 134 Cs, but only to24

Paris-Sud XI, Université de

24

Uptake, transfer and distribution of silver and cobalt in tissues of the common cuttlefish Sepia officinalis at different stages of its life cycle  

E-print Network

1 Uptake, transfer and distribution of silver and cobalt in tissues of the common cuttlefish Sepia examined to determine transfer of 110m Ag and 57 Co in juvenile cuttlefish Sepia officinalis. Additional experiments were conducted on adult cuttlefish and their eggs/embryos in order to assess bioaccumulation

Paris-Sud XI, Université de

25

Allozyme differentiation in the cuttlefish Sepia officinalis (Mollusca: Cephalopoda) from the NE Atlantic and Mediterranean  

Microsoft Academic Search

The Atlantic–Mediterranean area has recently been proposed as a new phylogeographical area on the basis of concordance of genetic differentiation patterns observed in several marine species. However, additional taxa need to be studied to establish the phylogeographical relationship between the Atlantic and Mediterranean. Eleven samples of the cuttlefish Sepia officinalis around the Iberian Peninsula, one from the Canary Islands, and

Marcos Pérez-Losada; Ángel Guerra; Andrés Sanjuan

1999-01-01

26

Molecular and morphological analyses of the cuttlefish Sepia apama indicate a complex population structure  

Microsoft Academic Search

The giant Australian cuttlefish Sepia apama Gray, 1849 annually forms a massive and unique spawning aggregation in northern Spencer Gulf, South Australia, which has attracted commercial fishing interests in recent years. However, many basic life-history characteristics of S. apama are unknown, and anecdotal evidence suggests that there is more than one species. The present study assessed the population structure and

K. S. Kassahn; S. C. Donnellan; A. J. Fowler; K. C. Hall; M. Adams; P. W. Shaw

2003-01-01

27

Color blindness and contrast perception in cuttlefish ( Sepia officinalis) determined by a visual sensorimotor assay  

Microsoft Academic Search

We tested color perception based upon a robust behavioral response in which cuttlefish (Sepia officinalis) respond to visual stimuli (a black and white checkerboard) with a quantifiable, neurally controlled motor response (a body pattern). In the first experiment, we created 16 checkerboard substrates in which 16 grey shades (from white to black) were paired with one green shade (matched to

Lydia M. Mäthger; Alexandra Barbosa; Simon Miner; Roger T. Hanlon

2006-01-01

28

Disruptive Body Patterning of Cuttlefish (Sepia officinalis) Requires Visual Information Regarding Edges and Contrast of Objects in Natural Substrate Backgrounds  

Microsoft Academic Search

Cuttlefish (Sepia officinalis Linnaeus, 1758) on mixed light and dark gravel show disruptive body patterns for camouflage. This response is evoked when the size of the gravel is equivalent to the area of the \\

CHUAN-CHIN CHIAO; EMMA J. KELMAN; ROGER T. HANLON

29

Rapid taste aversion learning in adult cuttlefish, Sepia officinalis  

Microsoft Academic Search

The common cuttlefish is an opportunistic predator with certain prey preferences. The literature suggests that learning plays a role in the predatory behaviour of cuttlefish. However, nothing is known about taste aversion learning in cephalopods. We developed a learning procedure in which the preferred prey of the experimental cuttlefish was made distasteful by a bitter taste (quinine). In the training

Anne-Sophie Darmaillacq; Ludovic Dickel; Marie-Paule Chichery; Véronique Agin; Raymond Chichery

2004-01-01

30

Sensory, microbiological, physical and chemical properties of cuttlefish ( Sepia officinalis) and broadtail shortfin squid ( Illex coindetii) stored in ice  

Microsoft Academic Search

The objective of this study was to characterize whole raw cuttlefish (Sepia officinalis) and shortfin squid (Illex coindetii) during storage in ice through sensory, microbiological, chemical and physical analyses. The recently developed Quality Index Method (QIM) tables for these species were used for sensory analysis. Shelf-life of whole cuttlefish and shortfin squid were estimated as around 10 and 9 days,

Paulo Vaz-Pires; Pedro Seixas; Micaela Mota; Judite Lapa-Guimarães; Jana Pickova; Andreia Lindo; Teresa Silva

2008-01-01

31

Aspects of the stock dynamics and exploitation of cuttlefish, Sepia officinalis (Linnaeus, 1758), in the English Channel  

Microsoft Academic Search

Basic biological parameters of cuttlefish, Sepia officinalis, in the English Channel are described from samples of commercial and research vessel landings made between April 1994 and September 1995. There was a significant difference between the length–weight relationship of male and female cuttlefish. Growth of both sexes was rapid and seasonal during the last 12 months of life. Males grew faster

M. R. Dunn

1999-01-01

32

Comparison in nutritional quality between wild and cultured cuttlefish Sepia pharaonis  

NASA Astrophysics Data System (ADS)

In this study, the proximate composition and the amino and fatty acid profiles of shrimp Litopenaeus vannamei (prey) and wild and cultured cuttlefish Sepia pharaonis (the latter fed the prey) were determined and compared with FAO/WHO recommendations. The resulting scores for isoleucine, phenylalanine+tyrosine, histidine, lysine, threonine, and tryptophan in cultured cuttlefish were ?150. The ratio of EAA (essential amino acids)/nonessential amino acids in cultured cuttlefish (0.82) was higher than in the wild form (0.80). All EAA amino acid scores for cultured cuttlefish were higher than their wild counterparts, except for histidine and tryptophan. Both groups of cuttlefish possessed similar saturated fatty acid content, with the cultured containing much more total (?) monounsaturated fatty acids, ? n-6 polyunsaturated fatty acids (PUFA), and eicosapentaenoic acid (C20:5 n-3) but less ? n-3 PUFA, arachidonic acid (C20:4 n-6), and docosahexaenoic acid (C22:6 n-3) than their wild counterparts. Therefore, the present results suggest that these cultured cuttlefish were better than the wild form for human health. Notably, these results also indicate that the nutritional composition of these cuttlefish might have been significantly affected by diet.

Wen, Jing; Chen, Daohai; Zeng, Ling

2014-01-01

33

Distance chemoreception in the common cuttlefish, Sepia officinalis (Mollusca, Cephalopoda)  

Microsoft Academic Search

Cephalopods are highly visual animals; the importance of chemical perception to these complex mollusks is less well understood. In this experiment, ventilation rate was used to measure the perception of chemical stimuli by cultured juvenile cuttlefish. The test tank had opaque sides and top to visually isolate the cuttlefish. A clear bottom permitted direct observation of funnel movements associated with

J. G Boal; D. K Golden

1999-01-01

34

Electron-dense tracer evidence for a blood—brain barrier in the cuttlefish Sepia officinalis  

Microsoft Academic Search

Summary Electron-dense tracers were used to study the permeability of the blood—brain interface in a cephalopod mollusc, the cuttlefishSepia officinalis. Gel filtration established that horseradish peroxidase is a suitable tracer forin vivo injection, but microperoxidase is not, being subject to binding by plasma proteins. Perfusion-fixed brain vertical and optic lobes showed no endogenous peroxidatic activity. Horseradish peroxidase was injected intravenously,

N. J. Abbott; M. Bundgaard

1992-01-01

35

Behavioral aspects of sperm competition in cuttlefish, Sepia officinalis (Sepioidea: Cephalopoda)  

Microsoft Academic Search

Sexual selection studies in cephalopods indicate that sperm competition is a central feature of their mating systems, yet\\u000a this has not been studied experimentally in any detail. In 1998 we staged 20 matings of the cuttlefish, Sepia officinalis L., in the laboratory. Males rapidly initiated mating in the “head-to-head” position, with no apparent courtship. Mating\\u000a lasted an average of 10?min

R. T. Hanlon; S. A. Ament; H. Gabr

1999-01-01

36

Absence of social recognition in laboratory-reared cuttlefish, Sepia officinalis L. (Mollusca: Cephalopoda)  

Microsoft Academic Search

Five experiments were performed to determine the level of social recognition in captive-reared adult cuttlefish,Sepia officinalisL. No evidence of discrimination of familiar from unfamiliar individuals was found in either females or males. Despite good evidence for mate guarding, no recognition of individual mates was found. Within sex classes, associations between freely moving animals were not different from random (f–f, f–m

JEAN GEARY BOAL

1996-01-01

37

Variation of acid phosphatases and cathepsins activities in the cuttlefish1 (Sepia officinalis) eggs: specific activity and effects of Ag, Cd, Cu exposures2  

E-print Network

1 Variation of acid phosphatases and cathepsins activities in the cuttlefish1 (Sepia officinalisP) and cathepsin24 activities throughout the cuttlefish embryo development. The enzyme activity kinetics25 appeared-11Oct2010 #12;3 Introduction40 41 Among cephalopods, Sepioidea (cuttlefishes) lay singly medium size

Paris-Sud XI, Université de

38

Phenoloxidase activation in the embryo of the common cuttlefish Sepia1 officinalis and responses to the Ag and Cu exposure2  

E-print Network

Phenoloxidase activation in the embryo of the common cuttlefish Sepia1 officinalis and responses in the cuttlefish embryo sampled at the end of the26 organogenesis and few hours before hatching. Various modulators demonstrated the28 evidence of a true phenoloxidase activity in the cuttlefish embryo. However, SDS and LPS29

Paris-Sud XI, Université de

39

A new haemocyanin in cuttlefish (Sepia officinalis) eggs: sequence analysis and relevance during ontogeny  

PubMed Central

Background Haemocyanin is the respiratory protein of most of the Mollusca. In cephalopods and gastropods at least two distinct isoforms are differentially expressed. However, their physiological purpose is unknown. For the common cuttlefish Sepia officinalis, three isoforms are known so far, whereas for only two of them the complete mRNA sequences are available. In this study, we sequenced the complete mRNA of the third haemocyanin isoform and measured the relative expression of all three isoforms during embryogenesis to reveal a potential ontogenetic relevance. Results The cDNA of isoform 3 clearly correlates to the known Sepia officinalis haemocyanin subunits consisting of eight functional units and an internal duplicated functional unit d. Our molecular phylogenetic analyses reveal the third isoform representing a potentially ancestral haemocyanin isoform, and the analyses of the expression of haemocyanin type 3 reveal that haemocyanin type 3 only can be observed within eggs and during early development. Isoforms 1 and 2 are absent at these stages. After hatching, isoform 3 is downregulated, and isoform 1 and 2 are upregulated. Conclusions Our study clearly shows an embryonic relevance of the third isoform, which will be further discussed in the light of the changes in the physiological function of haemocyanin during ontogeny. Taken together with the fact that it could also be the isoform closest related to the common ancestor of cuttlefish haemocyanin, the phylogeny of cuttlefish haemocyanin may be recapitulated during its ontogeny. PMID:24499521

2014-01-01

40

Extensive population subdivision of the cuttlefish Sepia officinalis (Mollusca: Cephalopoda) around the Iberian Peninsula indicated by microsatellite DNA variation  

Microsoft Academic Search

The Atlantic Ocean-Mediterranean Sea junction has been proposed as an important phylogeographical area on the basis of concordance in genetic patterns observed at allozyme, mtDNA and microsatellite DNA markers in several marine species. This study presents microsatellite DNA data for a mobile invertebrate species in this area, the cuttlefish Sepia officinalis, allowing comparison of this relatively new class of DNA

M Pérez-Losada; A Guerra; G R Carvalho; A Sanjuan; P W Shaw

2002-01-01

41

Maturation, fecundity and seasonality of reproduction of two commercially valuable cuttlefish, Sepia pharaonis and S. dollfusi, in the Suez Canal  

Microsoft Academic Search

The cuttlefish Sepia pharaonis (maximum 250mm mantle length, ML) and S. dollfusi (maximum 150mm ML) are widely distributed in the Indo-Pacific from the Red Sea to Japan and Australia. They are the primary fishery in the Suez Canal and the most valuable commercial cephalopods in the northern Indian Ocean. However, their reproductive biology, essential for fishery management, is poorly known.

Howaida R Gabr; Roger T Hanlon; Mahmoud H Hanafy; Salah G El-Etreby

1998-01-01

42

The effects of crowding on growth of the European cuttlefish, Sepia officinalis Linnaeus, 1758 reared at two temperatures  

Microsoft Academic Search

The objective of this study was to examine the impact of crowding (stocking density) on food consumption and growth of juvenile Sepia officinalis reared at 17 and 25 °C. Two groups of 75 cuttlefish each were reared in closed seawater systems with water temperatures of 17 and 25 °C. Each group was subdivided into two treatments (three replicates per treatment):

John Forsythe; Phillip Lee; Leigh Walsh; Tara Clark

2002-01-01

43

Development of new quality index method (QIM) schemes for cuttlefish ( Sepia officinalis) and broadtail shortfin squid ( Illex coindetii)  

Microsoft Academic Search

This article describes the development of sensory schemes for freshness grading of cuttlefish (Sepia officinalis) and broadtail shortfin squid (Illex coindetii) based on the recent quality index method (QIM). As preliminary work, four storage experiments were performed to choose the relevant sensory parameters for building the schemes. From an initial large set of parameters, some were chosen to be attributes

Paulo Vaz-Pires; Pedro Seixas

2006-01-01

44

Biokinetics of Hg and Pb accumulation in the encapsulated egg of the1 common cuttlefish Sepia officinalis: radiotracer experiments2  

E-print Network

for the embryo. This study highlighted that the maturing37 embryo could be subjected to the toxic effects of Hg an interesting system to study Hg and Pb coastal54 contamination (Chiffoleau et al., 1994; Metian et al., 20081 Biokinetics of Hg and Pb accumulation in the encapsulated egg of the1 common cuttlefish Sepia

Boyer, Edmond

45

Graded behavioral responses and habituation to sound in the common cuttlefish Sepia officinalis.  

PubMed

Sound is a widely available and vital cue in aquatic environments, yet most bioacoustic research has focused on marine vertebrates, leaving sound detection in invertebrates poorly understood. Cephalopods are an ecologically key taxon that likely use sound and may be impacted by increasing anthropogenic ocean noise, but little is known regarding their behavioral responses or adaptations to sound stimuli. These experiments identify the acoustic range and levels that elicit a wide range of secondary defense behaviors such as inking, jetting and rapid coloration change. Secondarily, it was found that cuttlefish habituate to certain sound stimuli. The present study examined the behavioral responses of 22 cuttlefish (Sepia officinalis) to pure-tone pips ranging from 80 to 1000 Hz with sound pressure levels of 85-188 dB re. 1 ?Pa rms and particle accelerations of 0-17.1 m s(-2). Cuttlefish escape responses (inking, jetting) were observed between frequencies of 80 and 300 Hz and at sound levels above 140 dB re. 1 ?Pa rms and 0.01 m s(-2) (0.74 m s(-2) for inking responses). Body patterning changes and fin movements were observed at all frequencies and sound levels. Response intensity was dependent upon stimulus amplitude and frequency, suggesting that cuttlefish also possess loudness perception with a maximum sensitivity around 150 Hz. Cuttlefish habituated to repeated 200 Hz tone pips, at two sound intensities. Total response inhibition was not reached, however, and a basal response remained present in most animals. The graded responses provide a loudness sensitivity curve and suggest an ecological function for sound use in cephalopods. PMID:25394634

Samson, Julia E; Mooney, T Aran; Gussekloo, Sander W S; Hanlon, Roger T

2014-12-15

46

Isolation and Identification of a Novel Ala-Pro-Gly-Trp-amide-Related Peptide Inhibiting the Motility of the Mature Oviduct in the Cuttlefish, Sepia officinalis  

Microsoft Academic Search

Henry J., P. Favrel and E. Boucaud-Camou. Isolation and identification of a novel APGW-amide-related peptide inhibiting the motility of the mature oviduct in the cuttlefish, Sepia officinalis. Peptides 18(10) 1469–1474, 1997.—A novel myotropic neuropeptide was isolated from 110 optic lobes (OL) of mature females of the cuttlefish Sepia officinalis L. by mean of high performance liquid chromatography (HPLC). The peptide

Joel Henry; Pascal Favrel; Eve Boucaud-Camou

1997-01-01

47

Brain vascular volume, electrolytes and blood-brain interface in the cuttlefish Sepia officinalis (Cephalopoda).  

PubMed Central

Cephalopod molluscs have complex brains and behaviour, yet little is known about the permeability of their blood-brain interface. This paper presents studies on the brain fluid and electrolyte compartments of the cuttlefish Sepia, as a preliminary to characterization of the permeability of the blood-brain interface in this group. Sepia is shown to be a satisfactory experimental animal, and techniques are described for anaesthesia, cannulation, and tissue and fluid analysis. Our ionic analyses of body fluids are in general agreement with those of earlier workers. Analysis of brain tissue suggests that the extracellular space is 17-20 ml 100 g tissue-1 (i.e. 17-20%). Two large molecular weight tracers, 125I-human serum albumin (HSA) and Blue dextran, give consistent values for the brain vascular volume of 3.5-5.5%, slightly higher than in vertebrates. The HSA results further confirm that the Sepia blood-brain interface is relatively tight to proteins. Finally, we have shown that the fluid surrounding the brain, pericerebral fluid (PCF), is in relatively free communication with plasma. Images Fig. 2 PMID:2416911

Abbott, N J; Bundgaard, M; Cserr, H F

1985-01-01

48

Effects of feeding live or frozen prey on growth, survival and the life cycle of the cuttlefish, Sepia officinalis (Linnaeus, 1758)  

Microsoft Academic Search

The effects of feeding live or frozen grass shrimp (Palaemonetes varians) to the cuttlefish, Sepia officinalis, were determined in two experiments. During Experiment I, two populations of 30 cuttlefish (aged 90 days old) were fed either\\u000a live or frozen grass shrimp. Cuttlefish fed live shrimp grew larger, matured earlier, had a shorter life cycle (255 days)\\u000a than the ones fed

Pedro Domingues; António Sykes; Anne Sommerfield; José P. Andrade

2003-01-01

49

Complete mitochondrial genome of the needle cuttlefish Sepia aculeata (Sepioidea, Sepiidae).  

PubMed

Abstract In this study, we determined the complete mitochondrial genome of the needle cuttlefish Sepia aculeata. The genome was 16,219?bp in length and contained 13 protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNA genes and 2 main non-coding regions [both are control regions (CR)]. The composition and order of genes, for the mitogenome found in S. aculeate, were similar to most other invertebrates. The overall base composition of S. aculeata is T 34.0%, C 17.0%, A 40.5% and G 8.5%, with a highly A?+?T bias of 74.5%. Two control regions (CR) both contain termination-associated sequences and conserved sequence blocks. This mitogenome sequence data would play an important role in the investigation of phylogenetic relationship, taxonomic resolution and phylogeography of the Sepiidae. PMID:24438256

Guo, Baoying; Wang, Wanchao; Qi, Pengzhi; Wu, Changwen; Chen, Yongjiu; Lv, Zhenming

2014-01-17

50

Complete mitochondrial genome of the common cuttlefish Sepia pharaonis (Sepioidea, Sepiidae).  

PubMed

In this study, the complete mitochondrial genome of the common cuttlefish Sepia pharaonis was determined first. The genome was 16,208?bp in length and contained 13 protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNA genes and 2 main non-coding regions [both are control regions (CR)], the gene composition and order of which were similar to most other invertebrates. The overall base composition of S. pharaonis is T: 36.3%, C: 14.7%, A: 40.9% and G: 8.1%, with a hightly A?+?T bias of 77.2%. Two control regions all contain termination-associated sequences and conserved sequence blocks. This mitogenome sequence data would play an important role in the investigations of the phylogenetic relationships, taxonomic resolution and phylogeography of the Sepiidae. PMID:23725482

Wang, Wanchao; Guo, Baoying; Li, Jiji; Qi, Pengzhi; Wu, Changwen

2014-06-01

51

A Complex Set of Sex Pheromones Identified in the Cuttlefish Sepia officinalis  

PubMed Central

Background The cephalopod mollusk Sepia officinalis can be considered as a relevant model for studying reproduction strategies associated to seasonal migrations. Using transcriptomic and peptidomic approaches, we aim to identify peptide sex pheromones that are thought to induce the aggregation of mature cuttlefish in their egg-laying areas. Results To facilitate the identification of sex pheromones, 576 5?-expressed sequence tags (ESTs) were sequenced from a single cDNA library generated from accessory sex glands of female cuttlefish. Our analysis yielded 223 unique sequences composed of 186 singletons and 37 contigs. Three major redundant ESTs called SP?, SP?? and SP? were identified as good candidates for putative sex pheromone transcripts and are part of the 87 unique sequences classified as unknown. The alignment of translated SP? and SP?? revealed a high level of conservation, with 98.4% identity. Translation led to a 248-amino acid precursor containing six peptides with multiple putative disulfide bonds. The alignment of SP?-?? with SP? revealed a partial structural conservation, with 37.3% identity. Translation of SP? led to a 252-amino acid precursor containing five peptides. The occurrence of a signal peptide on SP?, SP?? and SP? showed that the peptides were secreted. RT-PCR and mass spectrometry analyses revealed a co-localization of transcripts and expression products in the oviduct gland. Preliminary in vitro experiments performed on gills and penises revealed target organs involved in mating and ventilation. Conclusions The analysis of the accessory sex gland transcriptome of Sepia officinalis led to the identification of peptidic sex pheromones. Although preliminary functional tests suggested the involvement of the ?3 and ?2 peptides in ventilation and mating stimulation, further functional investigations will make it possible to identify the complete set of biological activities expected from waterborne pheromones. PMID:23118854

Enault, Jérémy; Zatylny-Gaudin, Céline; Bernay, Benoît; Lefranc, Benjamin; Leprince, Jérôme; Baudy-Floc'h, Michèle; Henry, Joël

2012-01-01

52

Trace metal concentrations in post-hatching cuttlefish Sepia officinalis and consequences of dissolved zinc exposure.  

PubMed

In this study, we investigated the changes of 13 trace metal and metalloid concentrations (i.e. Ag, As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Se, V, Zn) and their subcellular fractionation in juvenile cuttlefish Sepia officinalis reared in controlled conditions between hatching and 2 months post-hatching. In parallel, metallothionein concentrations were determined. Our results highlighted contrasting changes of studied metals. Indeed, As and Fe concentrations measured in hatchlings suggested a maternal transfer of these elements in cuttlefish. The non-essential elements Ag and Cd presented the highest accumulation during our study, correlated with the digestive gland maturation. During the 6 first weeks of study, soluble fractions of most of essential trace metals (i.e. Co, Cr, Cu, Fe, Se, Zn) slowly increased consistently with the progressive needs of cuttlefish metabolism during this period. In order to determine for the first time in a cephalopod how metal concentrations and their subcellular distributions are impacted when the animals are trace metal-exposed, we studied previously described parameters in juveniles exposed to dissolved Zn at environmental (i.e. 50?gl(-1)) and sublethal (i.e. 200?gl(-1)) levels. Moreover, oxidative stress (i.e. glutathione S-transferase (GST), superoxide dismutase (SOD) and catalase activities, and lipid peroxidation (LPO)) was assessed in digestive gland and gills after 1 and 2 months exposures. Our results highlighted no or low ability of this stage of life to regulate dissolved Zn accumulation during the studied period, consistently with high sensitivity of this organism. Notably, Zn exposures caused a concentration-dependent Mn depletion in juvenile cuttlefish, and an increase of soluble fraction of Ag, Cd, Cu without accumulation modifications, suggesting substitution of these elements (i.e. Mn, Ag, Cd, Cu) by Zn. In parallel, metallothionein concentrations decreased in individuals most exposed to Zn. Finally, no perturbations in oxidative stress management were detected in gills, whereas modifications of GST, SOD and catalase activity levels were recorded in digestive gland, resulting in an increase of LPO content after a 6-week exposure to low Zn concentration. Altogether, these perturbations are consistent with previously described high sensitivity of juvenile cuttlefish towards Zn. Our results underlined the need to study deeply contamination impact on this animal at this stage of life. PMID:25500620

Le Pabic, Charles; Caplat, Christelle; Lehodey, Jean-Paul; Milinkovitch, Thomas; Koueta, Noussithé; Cosson, Richard Philippe; Bustamante, Paco

2015-02-01

53

The effects of feeding with shrimp or fish fry on growth and mantle lipid composition of juvenile and adult cuttlefish ( Sepia officinalis)  

Microsoft Academic Search

In the present study, cuttlefish (Sepia officinalis) aged 60-day-old (age-group I) and 120-day-old (age-group II) were fed with live shrimp and live fish fry for 60 days, in order to study the diet influence on growth, mantle lipid composition, and astaxanthin content in the skin. The most noteworthy difference was the higher growth observed in shrimp-fed cuttlefish with respect to

Eduardo Almansa; Pedro Domingues; António Sykes; Noemi Tejera; António Lorenzo; José P. Andrade

2006-01-01

54

Inter-cohort growth patterns of pharaoh cuttlefish Sepia pharaonis (Sepioidea: Sepiidae) in Eastern Arabian Sea.  

PubMed

Sepia pharaonis is an important commercial species endemic to the tropical Indo-Pacific region. Despite its commercial significance, only few information on natural populations is available. This study was aimed to describe the aspects of size-composition, length-weight relationship, catch rates, seasonal recruitment and inter-cohort growth patterns of S. pharaonis population (Clade C), distributed along the Eastern Arabian Sea (South-West coast of India). For this, the Dorsal Mantle Length (DML) and weight of cuttlefishes was obtained from commercial trawl catches, from April 2002 to October 2006. Data was analyzed by normal length-weight methods such as von Bertalanffy. A total of 12454 cuttlefishes, ranging in length from four to 41cm were analyzed. Size-composition patterns discriminated two pulses in recruitment to the fishery, discernible by a decrease in the monthly mean size of the population. The DMLs of the two seasonal cohorts were subjected to modal-progression analysis using the Bhattacharya's method for the estimation of growth. The estimated parameters Linfinity and K in von Bertalanffy Growth Function (VBGF) were used to model growth curves in length for the cohorts. The first cohort, (post-monsoon cohort) which supports the major fishery, was composed of medium-sized, fast growing individuals, whereas the second cohort (pre-monsoon cohort), comprised of slow growing and large-sized individuals. There were differential growth characteristics between the sexes and the life span was estimated at less than 2.3 years for males and 2.1 years for females. Negative allometric growth in weight (W) with length (L) was observed for males (W=0.33069.L2.5389) and females (W=0.32542.L26057). The females were heavier compared to males at any given mantle length, and the males were found to attain larger ultimate lengths. The major fishing season for cuttlefish was from May to November, when higher monthly catch rates of 1.67-13.02kg/h were observed in comparison with 0.03-0.85kg/h in December-April. Seasonal catch rates indicated a migratory life cycle ofS. pharaonis between offshore and inshore coastal zones. PMID:23894959

Sasikumarl, Geetha; Mohamed, K S; Bhat, U S

2013-03-01

55

Prophenoloxidase system, lysozyme and protease inhibitor distribution in the common cuttlefish Sepia officinalis.  

PubMed

The immune system of cephalopods remains poorly understood. The aim of this study was to determine the specific activity of immune enzymes in epithelial barriers, circulatory and digestive systems of the common cuttlefish Sepia officinalis. Three enzyme groups with putative functions in immunity were investigated: phenoloxidases (POs), lysozymes and protease inhibitors (PIs). Consistent with a role in immunity, highest PO activities were found in the integument as well as the respiratory and circulatory organs under zymogenic (proPO) and active form. Surprisingly, high PO activities were also found in the digestive gland and its appendages. Similarly, high lysozyme activities were detected in the integument and circulatory organs, but also in the posterior salivary glands, highlighting the implication of this antibacterial enzyme group in most tissues exposed to the environment but also within the circulatory system. Albeit highest in digestive organs, the ubiquitous detection of PI activity in assayed compartments suggests immune function(s) in a wide range of tissues. Our study reports proPO/PO, lysozyme and PI distributions in S. officinalis body compartments for the first time, and thus provides the fundamental basis for a better understanding of the humoral immune system in cephalopods as well as invertebrates. PMID:24813822

Le Pabic, Charles; Safi, Georges; Serpentini, Antoine; Lebel, Jean-Marc; Robin, Jean-Paul; Koueta, Noussithé

2014-01-01

56

A new dopachrome-rearranging enzyme from the ejected ink of the cuttlefish Sepia officinalis.  

PubMed Central

A melanogenic enzyme catalysing the rearrangement of dopachrome has been identified in the ejected ink of the cuttlefish Sepia officinalis. This enzyme occurs as a heat-labile protein which co-migrates with tyrosinase under a variety of chromatographic and electrophoretic conditions. On SDS/PAGE it shows like a single band with an approx. molecular mass of 85 kDa. The enzyme possesses high substrate specificity, acting on L-dopachrome (Km = 1 mM at pH 6.8) and on L-alpha-methyl-dopachrome, but not on D-dopachrome, L-dopachrome methyl ester, dopaminochrome and adrenochrome. Significant inhibition of the catalytic activity was observed with tropolone and L-mimosine. H.p.1.c. analysis of the enzyme-catalysed rearrangement of L-dopachrome revealed the quantitative formation of the decarboxylated product, 5,6-dihydroxyindole. These results point to marked differences between melanogenesis in cephalopod pigment cells and in melanocytes, which may have important implications in relation to the use of sepiomelanin as a model for studies of mammalian melanins. Images Figure 2 PMID:8192674

Palumbo, A; d'Ischia, M; Misuraca, G; De Martino, L; Prota, G

1994-01-01

57

Comparison of the ontogeny of hunting behavior in pharaoh cuttlefish (Sepia pharaonis) and oval squid (Sepioteuthis lessoniana).  

PubMed

Animals adopt various forms of hunting according to their ecological, morphological, and cognitive features, and their specific hunting skills are acquired ontogenetically in relation to these features. It is noted that cuttlefish and squid hunt prey through the elongation of tentacles used specifically to capture prey. However, these two cephalopods have different lifestyles, leading to questions such as whether hunting skill is acquired similarly after birth and whether tentacle elongation is behaviorally identical. To address these questions, we observed and compared how captive pharaoh cuttlefish (Sepia pharaonis) and oval squid (Sepioteuthis lessoniana) attack prey during their early life stages. Like the adults, S. pharaonis hatchlings used the tentacular lunge attack, whereas S. lessoniana hatchlings used the arm-opening attack. S. lessoniana began to exhibit the tentacular strike attack after 30 days of age. In addition to timing of the emergence of a specific hunting mode, some differences were observed in the physical aspect of hunting behavior. For cuttlefish, maximum tentacle length and maximum speed of tentacle elongation increased from hatching to 30 days of age and then decreased. In contrast, for squid, maximum tentacle length increased from hatching to 30 days of age and then became constant. The distance to prey was positively correlated with maximum length and speed of tentacle elongation in S. pharaonis and with maximum swimming speed in S. lessoniana. These results show that cuttlefish mainly use an ambush strategy and that squid use a pursuit strategy. Possible causes for the ontogenetic differences in hunting behavior are discussed. PMID:24088796

Sugimoto, Chikatoshi; Ikeda, Yuzuru

2013-09-01

58

Influence of environmental parameters on the life-history and population dynamics of cuttlefish Sepia officinalis in the western Mediterranean  

NASA Astrophysics Data System (ADS)

The cuttlefish Sepia officinalis constitutes an important fishery resource in the Mediterranean, where it is exploited by both the bottom trawl and small-scale fleet. However, there is currently scarce information on the Mediterranean stocks, since most studies on the population dynamics of this species have been undertaken in the northeast Atlantic. In this work we first analysed different aspects of the cuttlefish life-history from the western Mediterranean such as population structure, reproduction and the trade-offs between somatic condition and reproduction investments. Secondly, we investigated the effects of different environmental parameters (e.g. climate indices, sea surface temperature (SST), rainfall, chlorophyll-a concentration (Chla) and moon phase) on these populations, analysing several landing time series spanning the last 45 years. Our results revealed that Mediterranean cuttlefish populations exhibit strong seasonal variations owing to a reproductive migration towards coastal waters. The positive relationships between somatic and reproductive condition pointed to an income breeder strategy; this was reinforced by the percentage of empty stomachs, which was lowest just before the reproductive period peak. Despite the putative high sensitivity of cephalopod populations to external abiotic factors, our results showed that Mediterranean cuttlefish populations were not affected by most of the environmental parameters investigated. Significant effects were found for SST and a local climatic index, but no or very weak influences were evident for other parameters such as large-scale climatic phenomena (e.g. North Atlantic Oscillation, Mediterranean Oscillation) or other locally-related variables (e.g. rainfall, Chla). Our results revealed a shift in the cuttlefish population dynamics in the early 1980s, which could be related to important changes in the local hydroclimatology reported by previous authors.

Keller, Stefanie; Valls, Maria; Hidalgo, Manuel; Quetglas, Antoni

2014-05-01

59

Differential bioaccumulation behaviour of Ag and Cd during the early development of the cuttlefish Sepia officinalis  

E-print Network

Differential bioaccumulation behaviour of Ag and Cd during the early development of the cuttlefish 94 Fax: +33 5 46 45 82 64 E-mail: pbustama@univ-lr.fr #12;Abstract: Cuttlefish eggs were exposed that at day 30 of the embryonic development the cuttlefish eggshell becomes permeable to Ag but not to Cd

Paris-Sud XI, Université de

60

Cuttlefish  

NSDL National Science Digital Library

Cuttlefish have the ability to change their skin coloring and pattern to match their surroundings. The cuttlefish uses this ability to camouflage, or hide, itself against its background and also to communicate with other ocean dwellers.

Arad M. (None; )

2006-09-25

61

Expression of the SOFaRP2 gene in the central nervous system of the adult cuttlefish Sepia officinalis.  

PubMed

FMRFamide-related Peptides (FaRPs) are involved in a variety of physiological processes, including reproduction, feeding, development, body patterning and osmoregulation in vertebrates and invertebrates. Here we investigate the expression pattern of cuttlefish Sepia officinalis FaRP2 gene in the brain by in situ hybridization. The SOFaRP2 gene was found to be expressed most intensively in the posterior chromatophore lobe, vasomotor lobe and subvertical lobe. In addition, positive staining was also found in the fin lobe, brachial lobe, anterior chromatophore lobe, anterior, dorsal and lateral basal lobes, inferior and superior frontal lobes, and optic lobe. The expression pattern of SOFaRP2 suggests its involvement in chromatophore regulation, feeding behavior, and learning and memory. PMID:23465584

Zhang, Zhuobin; Tublitz, Nathan J

2013-06-01

62

Effects of culture density and live prey on growth and survival of juvenile cuttlefish, Sepia officinalis  

Microsoft Academic Search

The effects of culture density on growth and survival of juvenile cuttlefish were tested. Groups of 1, 3 and 5 hatchlings were placed in small containers with bottom surface of 80 cm2, obtaining individual densities of 125, 375 and 625 cuttlefish m-2, respectively. Additionally, groups of 5 hatchlings were placed in containers with 2 different bottom areas (80 and 240

P. Domingues; R. Poirier; L. Dickel; E. Almansa; A. Sykes; J. P. Andrade

2003-01-01

63

Effect of enriched natural diet on survival and growth of juvenile cuttlefish Sepia officinalis L  

Microsoft Academic Search

Juvenile cuttlefish hatched in the laboratory were reared for 30 days with different enriched diets, in spring and in summer. The groups fed an enriched natural diet exhibited a high rate of survival even when seawater quality decreased during the summer. The natural diet enriched in polyunsaturated fatty acids (PUFA) induced faster growth in juvenile cuttlefish; the stimulating effect of

N Koueta; E Boucaud-Camou; B Noel

2002-01-01

64

Evidence for a specific short-term memory in the cuttlefish, Sepia  

Microsoft Academic Search

Cuttlefish quickly learn to inhibit their predatory motor pattern when shown prawns in a glass tube. The available literature suggests that cuttlefish show an excellent retention between 2 and 8 min, a recovery of the predatory responses around 20 min and good retention after 1 h of the training phase. These results have been considered as the product of two

Véronique Agin; Ludovic Dickel; Raymond Chichery; Marie-Paule Chichery

1998-01-01

65

Octopine metabolism in the cuttlefish, Sepia officinalis : Octopine production by muscle and its role as an aerobic substrate for non-muscular tissues  

Microsoft Academic Search

1.The metabolism of the glycolytic end product, octopine, was investigated in vivo in the cuttlefish,Sepia officinalis. Octopine was the major mantle muscle end product produced during hypoxia, exhaustive swimming, or exhaustive swimming followed by hypoxia (muscle octopine rose from 0.2 to 3.7, 8.6, and 13.4 µmol\\/g wet wt. respectively). Octopine concentration was inversely correlated with muscle glycogen and arginine phosphate

Kenneth B. Storey; Janet M. Storey

1979-01-01

66

The effect of metal ions on lipid oxidation, colour and physicochemical properties of cuttlefish ( Sepia pharaonis) subjected to multiple freeze–thaw cycles  

Microsoft Academic Search

The effects of different metal ions at various concentrations (0, 5, 25ppm) on lipid oxidation, discolouration and physicochemical properties of muscle protein in cuttlefish (Sepia pharaonis) subjected to multiple freeze–thaw cycles, were investigated. Lipid oxidation of all treatments increased as the freeze–thaw cycle increased. However, the rate of the TBARS increases varied, depending on concentration, type and valency of the

Amonrat Thanonkaew; Soottawat Benjakul; Wonnop Visessanguan; Eric A. Decker

2006-01-01

67

Dimorphic growth in male and female cuttlefish Sepia orbignyana (Cephalopoda: Sepiidae) from the Adriatic Sea  

NASA Astrophysics Data System (ADS)

The relationships between mantle length and number of cuttlebone chambers (or septa), and between weight and number of cuttlebone chambers were studied in Sepia orbignyana collected in the south-western Adriatic Sea. Weight-at-chamber count and mantle length-at-chamber count were statistically higher in females than in males. As the available literature suggests that the rate of cuttlebone septum formation is the same in both sexes of Sepia species, it follows that in S. orbignyana females have higher growth rates than males.

Bello, Giambattista

2001-04-01

68

Changes in composition of digestive gland and mantle muscle of the cuttlefish Sepia officinalis during starvation  

Microsoft Academic Search

Changes in the biochemical composition of the digestive gland and in the proteins of the mantle muscle of Sepia officinalis L, collected in September 1989 from the Ria de Vigo (northwest Spain), were measured during periods of 2, 4, 10 and >53 d starvation. The digestive gland lost weight faster than the rest of the body throughout the whole period

B. G. Castro; J. L. Garrido; C. G. Sotelo

1992-01-01

69

The Functional Organization of the Brain of the Cuttlefish Sepia officinalis  

Microsoft Academic Search

The functional organization of the brain of Sepia has been investigated by electrical stimulation. As a result several new divisions of the brain have been made. The pedal ganglion has been shown to consist of four parts: (1) the anterior chromatophore lobes innervating the skin and muscles of the anterior part of the head and arms; (2) the anterior pedal

B. B. Boycott

1961-01-01

70

Cryptic and biochemical responses of young cuttlefish Sepia officinalis exposed to environmentally relevant concentrations of fluoxetine.  

PubMed

Antidepressants released in the environment have the potential to generate neural disrupting effects in non-target organisms, yet their putative effects on behaviors have never been studied in cephalopod molluscs. This study assessed the impact of the antidepressant fluoxetine (FLX) on the efficiency of cryptic behaviors (body patterns on uniform, checkerboard and sandy substrates), locomotor activity, and brain chemistry in young cuttlefish exposed to environmental concentrations (1 and 100ngL(-1) of FLX) during the perinatal period. Behavioral responses of cuttlefish were monitored at hatching and two weeks later, and brain monoamine contents were quantified at one month of age. FLX significantly altered the camouflage efficiencies on uniform and sandy backgrounds only at the lowest concentration, but not at 100ngL(-1). Hatchlings exposed to 1ngL(-1) of FLX exhibited a duration exposure-dependent decrease in the uniform camouflage. They also showed a significant increase of the frequency of sand digging behaviors which might make them highly visible to predators in nature. When tested again two weeks later, cuttlefish seemed to have recovered and no more behavioral alterations were observed showing a transitory effect of the antidepressant. FLX did not affect the levels of serotonin, norepinephrine and their metabolites; however, it seemed to influence dopaminergic activity between the two FLX-exposed groups. The results show for the time that environmentally realistic concentrations of a single SSRI significantly impair the cryptic performances of newly hatched cuttlefish, and may ultimately reduce their chance for survival. PMID:24439571

Di Poi, Carole; Bidel, Flavie; Dickel, Ludovic; Bellanger, Cécile

2014-06-01

71

Food intake and growth in reared early juvenile cuttlefish Sepia officinalis L. (Mollusca Cephalopoda)  

Microsoft Academic Search

Experimental rearing of juvenile cuttlefish was carried out in a semi-closed system for 40 days at 19°C. Different quantities of live food were offered to isolated animals. The actual ingestion rate was enhanced by the amount of food offered, this tendency decreasing with age. Frozen food was ingested at the same rate, but was less effective than live food for

N. Koueta; E. Boucaud-Camou

1999-01-01

72

Prophenoloxidase system, lysozyme and protease inhibitor1 distribution in the common cuttlefish Sepia officinalis2  

E-print Network

1 Prophenoloxidase system, lysozyme and protease inhibitor1 distribution in the common cuttlefish.lepabic@gmx.fr20 21 Abstract22 The immune system of cephalopods remains poorly understood. The aim of this study23 was to determine the specific activity of immune enzymes in epithelial barriers, circulatory24 and digestive

Paris-Sud XI, Université de

73

Characterization of homeobox genes reveals sophisticated regionalization of the central nervous system in the European cuttlefish Sepia officinalis.  

PubMed

Cephalopod mollusks possess a number of anatomical traits that often parallel vertebrates in morphological complexity, including a centralized nervous system with sophisticated cognitive functionality. Very little is known about the genetic mechanisms underlying patterning of the cephalopod embryo to arrive at this anatomical structure. Homeodomain (HD) genes are transcription factors that regulate transcription of downstream genes through DNA binding, and as such are integral parts of gene regulatory networks controlling the specification and patterning of body parts across lineages. We have used a degenerate primer strategy to isolate homeobox genes active during late-organogenesis from the European cuttlefish Sepia officinalis. With this approach we have isolated fourteen HD gene fragments and examine the expression profiles of five of these genes during late stage (E24-28) embryonic development (Sof-Gbx, Sof-Hox3, Sof-Arx, Sof-Lhx3/4, Sof-Vsx). All five genes are expressed within the developing central nervous system in spatially restricted and largely non-overlapping domains. Our data provide a first glimpse into the diversity of HD genes in one of the largest, yet least studied, metazoan clades and illustrate how HD gene expression patterns reflect the functional partitioning of the cephalopod brain. PMID:25286399

Focareta, Laura; Sesso, Salvatore; Cole, Alison G

2014-01-01

74

Using the giant Australian cuttlefish (Sepia apama) mass breeding aggregation to explore the life cycle of dicyemid parasites.  

PubMed

Dicyemid mesozoan parasites, microscopic organisms found with high intensities in the renal appendages of benthic cephalopods, have a complex, partially unknown life cycle. It is uncertain at which host life cycle stage (i.e. eggs, juvenile, adult) new infection by the dispersive infusoriform embryo occurs. As adult cephalopods have a short lifespan and die shortly after reproducing only once, and juveniles are fast-moving, we hypothesize that the eggs are the life cycle stage where new infection occurs. Eggs are abundant and sessile, allowing a huge number of new individuals to be infected with low energy costs, and they also provide dicyemids with the maximum amount of time for survival compared with infection of juvenile and adult stages. In our study we collected giant Australian cuttlefish (Sepia apama) eggs at different stages of development and filtered seawater samples from the S. apama mass breeding aggregation area in South Australia, Australia, and tested these samples for the presence of dicyemid DNA. We did not recover dicyemid parasite cytochrome c oxidase subunit I (COI) nucleotide sequences from any of the samples, suggesting eggs are not the stage where new infection occurs. To resolve this unknown in the dicyemid life cycle, we believe experimental infection is needed. PMID:24338325

Catalano, Sarah R; Whittington, Ian D; Donnellan, Stephen C; Gillanders, Bronwyn M

2013-12-01

75

Basic growth relations in experimental rearing of early juvenile cuttlefish Sepia officinalis L. (Mollusca: Cephalopoda)  

Microsoft Academic Search

Basic growth relations were studied in experimental rearing of juvenile cuttlefish during 40 days. Eleven different rations of food were offered in order to establish the maintenance, optimum, and maximum rations during the early life of these animals. The maintenance ration, 2–3.5% of body weight, decreased with age. The optimum rations were, respectively, 16.2%, 14% and 9% during 10, 20

N Koueta; E Boucaud-Camou

2001-01-01

76

Functional properties of gelatin from cuttlefish ( Sepia pharaonis) skin as affected by bleaching using hydrogen peroxide  

Microsoft Academic Search

Functional properties of gelatin from dorsal and ventral skin of cuttlefish with and without bleaching by H2O2 at different concentrations (2% and 5% (w\\/v)) for 24 and 48h were studied. Gelatin from skin bleached with 5% H2O2 for 48h showed the highest yield (49.65% and 72.88% for dorsal and ventral skin, respectively). Bleaching not only improved the colour of gelatin

Tanong Aewsiri; Soottawat Benjakul; Wonnop Visessanguan

2009-01-01

77

Depth perception: cuttlefish (Sepia officinalis) respond to visual texture density gradients.  

PubMed

Studies concerning the perceptual processes of animals are not only interesting, but are fundamental to the understanding of other developments in information processing among non-humans. Carefully used visual illusions have been proven to be an informative tool for understanding visual perception. In this behavioral study, we demonstrate that cuttlefish are responsive to visual cues involving texture gradients. Specifically, 12 out of 14 animals avoided swimming over a solid surface with a gradient picture that to humans resembles an illusionary crevasse, while only 5 out of 14 avoided a non-illusionary texture. Since texture gradients are well-known cues for depth perception in vertebrates, we suggest that these cephalopods were responding to the depth illusion created by the texture density gradient. Density gradients and relative densities are key features in distance perception in vertebrates. Our results suggest that they are fundamental features of vision in general, appearing also in cephalopods. PMID:24942108

Josef, Noam; Mann, Ofri; Sykes, António V; Fiorito, Graziano; Reis, João; Maccusker, Steven; Shashar, Nadav

2014-11-01

78

Comparative Study on Biochemical Properties and Antioxidative Activity of Cuttlefish (Sepia officinalis) Protein Hydrolysates Produced by Alcalase and Bacillus licheniformis NH1 Proteases  

PubMed Central

Antioxidative activities and biochemical properties of protein hydrolysates prepared from cuttlefish (Sepia officinalis) using Alcalase 2.4?L and Bacillus licheniformis NH1 proteases with different degrees of hydrolysis (DH) were determined. For the biochemical properties, hydrolysis by both enzymes increased protein solubility to above 75% over a wide pH range. The antioxidant activities of cuttlefish protein hydrolysates (CPHs) increase with increasing DH. In addition, all CPHs exhibited antioxidative activity in a concentration-dependent manner. NH1-CPHs generally showed greater antioxidative activity than Alcalase protein hydrolysates (P < 0.05) as indicated by the higher 1,1-diphenyl-1-picryhydrazyl (DPPH) radical scavenging activity and ferrous chelating activity. Both Alcalase and NH1 protein hydrolysates were able to retard lipid peroxidation and ?-carotene-linoleic acid oxidation. Alcalase-CPH (DH = 12.5%) and NH1-CPH (DH = 15%) contained 75.36% and 80.11% protein, respectively, with histidine and arginine as the major amino acids, followed by glutamic acid/glutamine, serine, lysine, and leucine. In addition, CPHs have a high percentage of essential amino acids made up 48.85% and 50.04%. Cuttlefish muscle protein hydrolysates had a high nutritional value and could be used as supplement to poorly balanced dietary proteins. PMID:22312455

Balti, Rafik; Bougatef, Ali; El Hadj Ali, Nedra; Ktari, Naourez; Jellouli, Kemel; Nedjar-Arroume, Naima; Dhulster, Pascal; Nasri, Moncef

2011-01-01

79

Molecular analysis of a novel FMRFamide-related peptide gene (SOFaRP(2)) and its expression pattern in the brain of the European cuttlefish Sepia officinalis.  

PubMed

FMRFamide-related peptides (FaRPs) are among several neurotransmitters known to regulate the chromatophore function in the European cuttlefish Sepia officinalis. Here we report the cloning and sequencing of a novel S. officinalis FaRP gene (SOFaRP(2)). The complete 835-base pair cDNA sequence of the SOFaRP(2) gene contains an open reading frame of 567 base pairs encoding 188 amino acids and four putative FaRPs, NSLFRFamide, GNLFRFamide, TIFRFamide and PHTPFRFamide. All except TIFRFamide cause chromatophore expansion when assayed in an in vitro chromatophore bioassay. To investigate the expression pattern of SOFaRP(2) gene in the cuttlefish brain, in situ hybridization was performed using a full length RNA probe. The SOFaRP(2) gene was expressed primarily in the posterior chromatophore, anterior chromatophore, lateral basal and optic lobes among other brain locations. The SOFaRP(2) gene appears to be expressed in all brain regions involved in chromatophore regulation. These data suggests that some or all of the four FaRPs encoded by SOFaRP(2) might be involved in controlling chromatophore activity in cuttlefish. PMID:21802466

Zhang, Zhuobin; Goodwin, Eli; Loi, Poh Kheng; Tublitz, Nathan J

2012-03-01

80

RAPID COMMUNICATION Sexually Mature Cuttlefish are Attracted  

E-print Network

RAPID COMMUNICATION Sexually Mature Cuttlefish are Attracted to the Eggs of Conspecifics Jean G 2010 Abstract Cuttlefish typically are solitary, but form aggregations to spawn. We tested of Sepia officinalis. Cuttlefish detected odors from cuttlefish eggs, resulting in an increased ventilation

Boal, Jean

81

Effects of temperature fluctuations on cuttlebone formation of cuttlefish Sepia esculenta  

NASA Astrophysics Data System (ADS)

The morphological characteristics and the cuttlebone formation of Sepia esculenta exposed to different water temperature fluctuations were investigated under laboratory conditions. Temperature fluctuation cycles (15 cycles, 60 d in total) consisted of the following three regimes of 4 d duration: keeping water temperature in 26°C for 3 d (Group A), 2 d (Group B), 0 d (Group C, control); then keeping water temperature in 16°C for the next 1, 2, 4 d. No significant difference in the survival rate was observed between the control and temperature fluctuation groups ( P >0.05). Lamellar depositions in a temperature fluctuation cycle were 2.45±0.02 for Group A, 2.00±0.02 for Group B, and 1.78±0.02 for Group C ( P< 0.05). The relationship between age and number of lamellas in the cuttlebone of S. esculenta under each water temperature fluctuation could be described as the linear model and the number of lamellas in the cuttlebone did not correspond to actual age. Group A had the highest cuttlebone growth index (CGI), the lowest locular index (LI), and inter-streak distances comparing with those of control group. However, the number of lamellas and LI or CGI showed a quadratic relationship for each temperature fluctuation group. In addition, temperature fluctuations caused the breakage of cuttlebone dark rings, which was considered a thermal mark. The position of the breakage in the dark rings was random. This thermal mark can be used as supplementary information for marking and releasing techniques.

Lei, Shuhan; Zhang, Xiumei; Liu, Songlin; Chen, Siqing

2012-07-01

82

Growth and survival of cuttlefish ( Sepia officinalis) of different ages fed crustaceans and fish. Effects of frozen and live prey  

Microsoft Academic Search

Three feeding experiments, using live mysid shrimp, grass shrimp or fish fry as prey for 1-, 30- and 60-day-old cuttlefish were conducted to determine the efficiency of each dietary source in relation to cuttlefish size and age. Additionally, a fourth experiment using fish fry and grass shrimp, but previously frozen, was also conducted. The results showed that when 1-day-old cuttlefish

Pedro Domingues; António Sykes; Anne Sommerfield; Eduardo Almansa; António Lorenzo; José P. Andrade

2004-01-01

83

Microanatomy and ultrastructure of outer mantle epidermis of the cuttlefish, Sepia esculenta (Cephalopoda: Sepiidae).  

PubMed

This study describes the ultrastructural characteristics of external epidermis of mantle of Sepia esculenta using light and electron microscopy. The epidermis was thicker on the ventral surface than on the dorsal surface, with a higher secretory cell distribution on the ventral surface than on the dorsal surface. The epidermis was a single layer composed of epithelial cells, secretory cells, ciliated cells and neuroglial cells. Epithelial cells were columnar with well-developed microvilli on the free surface, and the microvilli were covered with glycocalyx. The epithelial cells were connected to the neighboring cells by tight junctions and membrane interdigitations of the apico-frontal surface. Well-developed microfilaments were arranged in a vertical direction in the cortical cytoplasm. The secretory cells were categorized into three types (A, B and C) in accordance with the light microscopical characteristics and ultrastructures of the secretory granules. The distribution of these cells was in the following order: Type A>Type B>Type C. SEM observation revealed that the secretory pore size of the Type A secretory cells was approximately 8.6 ?m×12.2 ?m. Cytoplasm displayed a red color as the result of Masson's trichrome stain and H-E stain, and contained polygonal granules of approximately 1.2 ?m2 with a high electron density. The secretory pore size of the Type B secretory cells was approximately 10.1 ?m×12.1 ?m. As the results of AB-PAS (pH 2.5) and AF-AB (pH 2.5) reactions, the cytoplasm displayed a red color. The cells contained membrane bounded secretory granules with very low electron density. The secretory pore of the Type C secretory cells was circular shape, and approximately 5.5 ?m×5.5 ?m. Cytoplasm was found to be homogeneous under H-E stain and Masson's trichrome stain, and displayed a red color. As the result of AB-PAS (pH 2.5) reaction, the cytoplasm displayed a red color. The electron density of the secretory substance was the highest among the three types of secretory cells. The ciliated cells had a ciliary tuft on the free surface and were distributed throughout the mantle with the exception of the adhesive organs. Neuroglial cells were connected to the basal membrane, epithelial cells, secretory cells and nerve fibers through cytoplasmic process, and contained neurosecretory granules with high electron density within the cytoplasm. PMID:24361231

Lee, Dong Geun; Park, Min Woo; Kim, Byeong Hak; Kim, Hyejin; Jeon, Mi Ae; Lee, Jung Sick

2014-03-01

84

Development of a bioassay from isolated digestive gland cells of the cuttlefish Sepia officinalis L. (Mollusca Cephalopoda): effect of Cu, Zn and Ag on enzyme activities and cell viability  

Microsoft Academic Search

The purpose of this study was to establish a bioassay from isolated digestive gland cells of the cuttlefish Sepia officinalis in order to observe the effect of heavy metals on digestive enzyme activities. Digestive cells were isolated using a pronase enzyme that was removed by several washings of the cell suspension. Cell viability was tested by the MTT assay (3-4,5-dimethylthiazol-2-yl-2,5-diphenyl

E. Le Bihan; A. Perrin; N. Koueta

2004-01-01

85

Effects of increased pCO2 and temperature on trace element (Ag, Cd and Zn) bioaccumulation in the eggs of the common cuttlefish, Sepia officinalis  

NASA Astrophysics Data System (ADS)

Cephalopods play a key role in many marine trophic networks and constitute alternative fisheries resources, especially given the ongoing decline in finfish stocks. Along the European coast, the eggs of the cuttlefish Sepia officinalis are characterized by an increasing permeability of the eggshell during development, which leads to selective accumulation of essential and non-essential elements in the embryo. Temperature and pH are two critical factors that affect the metabolism of marine organisms in the coastal shallow waters. In this study, we are testing the effects of pH and temperature through a crossed (3×2) laboratory experiment. Seawater pH showed a strong effect on the egg weight and non-significant impact on the hatchlings weight at the end of development implying egg swelling process and embryo growth disturbances. The lower pH of incubation seawater of eggs, the more the hatchlings accumulated 110m Ag in their tissues. The 109Cd CF decreased with increasing pH and 65Zn CF reached the maximal values pH 7.85, independent of temperature. Our results suggest that pH and temperature affected both the permeability properties of the eggshell and the embryo metabolism. To the best of our knowledge, this is one of the first studies on the ocean acidification and ocean warming consequences on the metal uptake in marine organisms, stimulating further interest to evaluate the likely ecotoxicological impact of the global change on the early-life stage of the cuttlefish.

Lacoue-Labarthe, T.; Martin, S.; Oberhänsli, F.; Teyssié, J.-L.; Markich, S.; Jeffree, R.; Bustamante, P.

2009-05-01

86

The complete mitochondrial genomes of deep-sea squid (Bathyteuthis abyssicola), bob-tail squid (Semirossia patagonica) and four giant cuttlefish (Sepia apama, S. latimanus, S. lycidas and S. pharaonis), and their application to the phylogenetic analysis of Decapodiformes.  

PubMed

We determined the complete mitochondrial (mt) genomes of the deep-sea squid (Bathyteuthis abyssicola; supperfamily Bathyteuthoidea), the bob-tail squid (Semirossia patagonica; order Sepiolida) and four giant cuttlefish (Sepia apama, S. latimanus, S. lycidas and S. pharaonis; order Sepiida). The unique structures of the mt genomes of Bathyteuthis and Semirossia provide new information about the evolution of decapodiform mt genomes. We show that the mt genome of B. abyssicola, like those of other oegopsids studied so far, has two long duplicated regions that include seven genes (COX1-3, ATP6 and ATP8, tRNA(Asn), and either ND2 or ND3) and that one of the duplicated COX3 genes has lost its function. The mt genome of S. patagonica is unlike any other decapodiforms and, like Nautilus, its ATP6 and ATP8 genes are not adjacent to each other. The four giant cuttlefish have identical mt gene order to other cuttlefish determined to date. Molecular phylogenetic analyses using maximum likelihood and Bayesian methods suggest that traditional order Sepioidea (Sepiolida+Sepiida) is paraphyletic and Sepia (cuttlefish) has the sister-relationship with all other decapodiforms. Taking both the phylogenetic analyses and the mt gene order analyses into account, it is likely that the octopus-type mt genome is an ancestral state and that it had maintained from at least the Cephalopoda ancestor to the common ancestor of Oegopsida, Myopsida and Sepiolida. PMID:23811434

Kawashima, Yuumi; Nishihara, Hidenori; Akasaki, Tetsuya; Nikaido, Masato; Tsuchiya, Kotaro; Segawa, Susumu; Okada, Norihiro

2013-12-01

87

Effects of increased pCO2 and temperature on trace element (Ag, Cd and Zn) bioaccumulation in the eggs of the common cuttlefish, Sepia officinalis  

NASA Astrophysics Data System (ADS)

Cephalopods play a key role in many marine trophic networks and constitute alternative fisheries resources, especially given the ongoing decline in finfish stocks. Along the European coast, the eggs of the cuttlefish Sepia officinalis are characterized by an increasing permeability of the eggshell during development, which leads to selective accumulation of essential and non-essential elements in the embryo. Temperature and pH are two critical factors that affect the metabolism of marine organisms in the coastal shallow waters. In this study, we investigated the effects of pH and temperature through a crossed (3×2; pH 8.1 (pCO2, 400 ppm), 7.85 (900 ppm) and 7.6 (1400 ppm) at 16 and 19°C, respectively) laboratory experiment. Seawater pH showed a strong effect on the egg weight and non-significant impact on the weight of hatchlings at the end of development implying an egg swelling process and embryo growth disturbances. The lower the seawater pH, the more 110 mAg was accumulated in the tissues of hatchlings. The 109Cd concentration factor (CF) decreased with decreasing pH and 65Zn CF reached maximal values pH 7.85, independently of temperature. Our results suggest that pH and temperature affected both the permeability properties of the eggshell and embryonic metabolism. To the best of our knowledge, this is one of the first studies on the consequences of ocean acidification and ocean warming on metal uptake in marine organisms, and our results indicate the need to further evaluate the likely ecotoxicological impact of the global change on the early-life stages of the cuttlefish.

Lacoue-Labarthe, T.; Martin, S.; Oberhänsli, F.; Teyssié, J.-L.; Markich, S.; Ross, J.; Bustamante, P.

2009-11-01

88

Postembryonic Maturation of the Vertical Lobe Complex and Early Development of Predatory Behavior in the Cuttlefish ( Sepia officinalis)  

Microsoft Academic Search

In two groups of newly hatched cuttlefish, from eggs incubated at different temperatures, the emergence of predatory pursuit was correlated with the development of some characteristics of the vertical lobe complex (namely, the development of the vertical and superior frontal lobes and the appearance of the vertical–subvertical lobe tracts) and with the state of resorption of the inner yolk sac.

Ludovic Dickel; Marie-Paule Chichery; Raymond Chichery

1997-01-01

89

Rearing of Cuttlefishes and Squids  

Microsoft Academic Search

WE have succeeded (through improving the feed during the earlier stages after hatching) in rearing three species of the cuttlefish (Sepia esculenta Hoyle, Sepia subaculeata Sasaki and Sepiella maindroni de Rochebrune) and two species of the squid (Sepioteuthis lessoniana Lesson and Euprymna beryii Sasaki)1. The main points to note in rearing these animals are as follows:

Sang Choe; YASUO OHSHIMA

1963-01-01

90

The influence of culture density and enriched environments on the first stage culture of young cuttlefish, Sepia officinalis (Linnaeus, 1758)  

Microsoft Academic Search

The culture of Sepia officinalis hatchlings and juveniles at different densities and enriched environments was investigated. Experiments were conducted to\\u000a determine effects of culture density and the use of a substrate on growth and survival. Experiment I studied the effect of\\u000a three different densities (52, 515 and 1544 hatchlings m?2). Experiment II tested the effects of the enriched environment, using

António V. Sykes; Pedro M. Domingues; Maria Loyd; Anne Sommerfield; José P. Andrade

2003-01-01

91

Behavioural and genetic assessment of reproductive success in a spawning aggregation of the Australian giant cuttlefish, Sepia apama  

Microsoft Academic Search

The only known spawning aggregation of cuttlefish occurs in winter in southern Australia. The operational sex ratio in this aggregation is highly skewed towards males (range 11:1 to 4:1). Using SCUBA, we videotaped females as they mated with up to six males\\/h. Females rejected and accepted mates of any status or size. We obtained individual eggs and tissue samples from

Marie-José Naud; Roger T. Hanlon; Karina C. Hall; Paul W. Shaw; Jonathan N. Havenhand

2004-01-01

92

Absence of formation of benzo[a]pyrene/DNA adducts in the cuttlefish (Sepia officinalis, Mollusca: Cephalopoda)  

SciTech Connect

Benzo[a]pyrene (B[a]P) injected intramuscularly into the base of the arms of cuttlefish was released continuously from the injection site and removed from the organism. Only a portion of the compound accumulated in the body. Twenty-four hr after its injection, 75% of B[a]P applied in olive oil was removed from the cuttlefish, and 1.2% was found in the body outside the head, in site of injection. If the carcinogen was dissolved in dimethylformamide, the removal of B[a]P was slower, so that only 18% of the injected B[a]P was removed from the organism and 0.36% accumulated in the body outside the head 24 hr after injection. The high level of B[a]P in gills and hemolymph 4 hr after injection and the kinetics of the decrease of its concentration with time indicate that these two organs could be involved in the excretion of B[a]P from the body. The B[a]P/DNA adducts characteristic for vertebrates could not be demonstrated in gills, skin, brain, hepatopancreas, and lymphocytes of the cuttlefish 24 hr after injection. The dose of the carcinogene injected into the cuttlefish was 2-4 times higher than the dose resulting in the formation of a high level of B[a]P/DNA adducts in vertebrates. A different metabolism of B[a]P in the tissue of cephalopods, compared to vertebrates, could be less favorable to the process leading to malignant transformation and could explain the absence from the literature of reports of tumors in cephalopods. 15 refs., 1 fig., 2 tabs.

Lee, P.G.; Lu, L.J.W.; Salazar, J.J.; Holoubek, V. (Univ. of Texas Medical Branch, Galveston, TX (United States))

1994-01-01

93

Spatial and temporal patterns of cuttlefish (Sepia officinalis) abundance and environmental influences – a case study using trawl fishery data in French Atlantic coastal, English Channel, and adjacent waters  

Microsoft Academic Search

The spatial and temporal distribution patterns of cuttlefish abundance and the relationships between cuttlefish abundance and environmental variables in the French Atlantic coast, the English Channel, and adjacent waters were studied using both geographical information system and statistical methods. Cuttlefish have a clear general annual migration pattern, consistently occurring in broadly the same areas in different years. The strength of

Jianjun Wang; Graham J. Pierce; Peter R. Boyle; Vincent Denis; Jean-paul Robin; Jose M. Bellido

2003-01-01

94

Cuttlefish dynamic camouflage: responses to substrate choice and integration  

E-print Network

Cuttlefish dynamic camouflage: responses to substrate choice and integration of multiple visual into effective camouflage design. Here, we examine whether cuttlefish, Sepia officinalis, show substrate or camouflage pattern preferences. In the first two experiments, cuttlefish were presented with a choice between

Hanlon, Roger T.

95

Time differences in the emergence of short- and long-term memory during post-embryonic development in the cuttlefish, Sepia  

Microsoft Academic Search

When shown prawns in a glass tube, cuttlefish quickly learn to inhibit their predatory behaviour. The available literature suggests that cuttlefish show an excellent retention between 2 and 8 min, a recovery of the predatory responses around 20 min, and good retention after 1 h of the training phase. These results have been interpreted as the product of separate short-

Ludovic Dickel; Marie-Paule Chichery; Raymond Chichery

1998-01-01

96

The scaling effects of substrate texture on camouflage patterning in cuttlefish Chuan-Chin Chiao a,b,*, Charles Chubb c  

E-print Network

The scaling effects of substrate texture on camouflage patterning in cuttlefish Chuan-Chin Chiao a pattern Crypsis Sepia officinalis Defense a b s t r a c t Camouflage is the primary defense in cuttlefish in cuttlefish, Sepia officinalis. Substrate textures were white noise pat- terns first filtered into various

Hanlon, Roger T.

97

Cuttlefish use polarization sensitivity in predation on silvery fish  

Microsoft Academic Search

Cephalopods are sensitive to the linear polarization characteristics of light. To examine if this polarization sensitivity plays a role in the predatory behavior of cuttlefish, we examined the preference of Sepia officinalis when presented with fish whose polarization reflection was greatly reduced versus fish whose polarization reflection was not affected. Cuttlefish preyed preferably on fish with normal polarization reflection over

Nadav Shashar; Roland Hagan; Jean G Boal; Roger T Hanlon

2000-01-01

98

The effects of temperature in the life cycle of two consecutive generations of the cuttlefish Sepia officinalis (Linnaeus, 1758), cultured in the Algarve (South Portugal)  

Microsoft Academic Search

We are presently culturing the 4th generation of thecuttlefish, Sepia officinalis in our laboratory. A firstgeneration (F1) was grown from eggs collected from the wild (Ria Formosa–South Portugal) during the summer, at mean temperatures of 27°C ± 3°. In the present study, a second generation(F2), originated from eggs laid in the laboratory by females from F1 wascultured between the start

Pedro M. Domingues; António Sykes; José P. Andrade

2002-01-01

99

Identifying the structure in cuttlefish visual signals.  

PubMed Central

The common cuttlefish (Sepia officinalis) communicates and camouflages itself by changing its skin colour and texture. Hanlon and Messenger (1988 Phil. Trans. R. Soc. Lond. B 320, 437-487) classified these visual displays, recognizing 13 distinct body patterns. Although this conclusion is based on extensive observations, a quantitative method for analysing complex patterning has obvious advantages. We formally define a body pattern in terms of the probabilities that various skin features are expressed, and use Bayesian statistical methods to estimate the number of distinct body patterns and their visual characteristics. For the dataset of cuttlefish coloration patterns recorded in our laboratory, this statistical method identifies 12-14 different patterns, a number consistent with the 13 found by Hanlon and Messenger. If used for signalling these would give a channel capacity of 3.4 bits per pattern. Bayesian generative models might be useful for objectively describing the structure in other complex biological signalling systems. PMID:12495518

Crook, Anne C; Baddeley, Roland; Osorio, Daniel

2002-01-01

100

Defensive responses of cuttlefish to different teleost predators.  

PubMed

We evaluated cuttlefish (Sepia officinalis) responses to three teleost predators: bluefish (Pomatomus saltatrix), summer flounder (Paralichthys dentatus), and black seabass (Centropristis striata). We hypothesized that the distinct body shapes, swimming behaviors, and predation tactics exhibited by the three fishes would elicit markedly different antipredator responses by cuttlefish. Over the course of 25 predator-prey behavioral trials, 3 primary and 15 secondary defense behaviors of cuttlefish were shown to predators. In contrast, secondary defenses were not shown during control trials in which predators were absent. With seabass-a benthic, sit-and-pursue predator-cuttlefish used flight and spent more time swimming in the water column than with other predators. With bluefish-an active, pelagic searching predator-cuttlefish remained closely associated with the substrate and relied more on cryptic behaviors. Startle (deimatic) displays were the most frequent secondary defense shown to seabass and bluefish, particularly the Dark eye ring and Deimatic spot displays. We were unable to evaluate secondary defenses by cuttlefish to flounder-a lie-and-wait predator-because flounder did not pursue cuttlefish or make attacks. Nonetheless, cuttlefish used primary defense during flounder trials, alternating between cryptic still and moving behaviors. Overall, our results suggest that cuttlefish may vary their behavior in the presence of different teleost predators: cryptic behaviors may be more important in the presence of active searching predators (e.g., bluefish), while conspicuous movements such as swimming in the water column and startle displays may be more prevalent with relatively sedentary, bottom-associated predators (e.g., seabass). PMID:24445442

Staudinger, Michelle D; Buresch, Kendra C; Mäthger, Lydia M; Fry, Charlie; McAnulty, Sarah; Ulmer, Kimberly M; Hanlon, Roger T

2013-12-01

101

Sensory evoked potentials in unanesthetized unrestrained cuttlefish: a new preparation for brain physiology in cephalopods  

Microsoft Academic Search

Up to five microelectrodes inserted through short hypodermic needles in the cranial cartilage of Sepia officinalis recorded potentials while the cuttlefish moved freely in a small enclosure. Compound field potentials and unit spikes were seen during ongoing, spontaneous activity and after sensory stimulation.

Theodore H. Bullock; Bernd U. Budelmann

1991-01-01

102

Nine novel angiotensin I-converting enzyme (ACE) inhibitory peptides from cuttlefish (Sepia officinalis) muscle protein hydrolysates and antihypertensive effect of the potent active peptide in spontaneously hypertensive rats.  

PubMed

This study aimed to identify novel ACE inhibitory peptides from the muscle of cuttlefish. Proteins were hydrolyzed and the hydrolysates were then subjected to various types of chromatography to isolate the active peptides. Nine ACE inhibitory peptides were isolated and their molecular masses and amino acid sequences were determined using ESI-MS and ESI-MS/MS, respectively. The structures of the most potent peptides were identified as Val-Glu-Leu-Tyr-Pro, Ala-Phe-Val-Gly-Tyr-Val-Leu-Pro and Glu-Lys-Ser-Tyr-Glu-Leu-Pro. The first peptide displayed the highest ACE inhibitory activity with an IC50 of 5.22?M. Lineweaver-Burk plots suggest that Val-Glu-Leu-Tyr-Pro acts as a non-competitive inhibitor against ACE. Furthermore, antihypertensive effects in spontaneously hypertensive rats (SHR) also revealed that oral administration of Val-Glu-Leu-Tyr-Pro can decrease systolic blood pressure significantly (p<0.01). These results suggest that the Val-Glu-Leu-Tyr-Pro would be a beneficial ingredient for nutraceuticals and pharmaceuticals acting against hypertension and its related diseases. PMID:25306378

Balti, Rafik; Bougatef, Ali; Sila, Assaâd; Guillochon, Didier; Dhulster, Pascal; Nedjar-Arroume, Naima

2015-03-01

103

CUTTLEFISH CAMOUFLAGE: VISUAL PERCEPTION OF SIZE, CONTRAST AND NUMBER OF WHITE SQUARES ON ARTIFICIAL CHECKERBOARD SUBSTRATA INITIATES DISRUPTIVE COLORATION  

Microsoft Academic Search

We investigated some visual background features that influence young cuttlefish, Sepia pharaonis, to change their skin patterning from 'general resemblance' of the substratum to disruptive coloration that breaks up their body form. Using computer-generated black\\/white checkerboard patterns as substrata, we first found that the size of the white squares had to be within a certain narrow range (relative to the

CHUAN-CHIN CHIAO; ROGER T. HANLON

104

Surface enhanced Raman scattering (SERS) and FTIR characterization of the sepia melanin pigment used in works of art  

NASA Astrophysics Data System (ADS)

Surface enhanced Raman scattering (SERS) and FTIR were used for the vibrational characterization of the sepia melanin pigment extracted from the cuttlefish or Sepia officinalis, a material used in works of art from at least the late 18th century. The heterogeneous polymeric nature of the pigment, together with its fluorescent background, makes its identification by normal Raman spectroscopy difficult. In the present study, SERS and FTIR spectra of sepia were obtained. SERS proved to be suitable to characterize this complex material in micro-samples because of its sensitivity, ability to quench fluorescence, and minimal preparation required. For the SERS measurements, different substrates were tested in contact with the sepia pigment. It was found that a sodium borohydride reduced silver colloid gave the best performance, particularly when applied as a drop on top of a solid sepia sample, and subsequently dried. A larger enhancement was observed in the SERS spectrum of the sepia sample extracted in the laboratory, when compared to the more pure commercial sample, consistently with the higher metal binding capacity of less pure sepia melanin reported by other authors. The FTIR and SERS frequencies observed were found to be consistent with those reported in the literature for closely related compounds, such as indole, pyrrole and substituted pyrroles, and were assigned by comparison with them and with other published data for functional groups in organic chemistry.

Centeno, Silvia A.; Shamir, Jacob

2008-02-01

105

Cuttlefish camouflage: context-dependent body pattern use during motion  

PubMed Central

It is virtually impossible to camouflage a moving target against a non-uniform background, but strategies have been proposed to reduce detection and targeting of movement. Best known is the idea that high contrast markings produce ‘motion dazzle’, which impairs judgement of speed and trajectory. The ability of the cuttlefish Sepia officinalis to change its visual appearance allows us to compare the animal's choice of patterns during movement to the predictions of models of motion camouflage. We compare cuttlefish body patterns used during movement with those expressed when static on two background types; one of which promotes low-contrast mottle patterns and the other promotes high-contrast disruptive patterns. We find that the body pattern used during motion is context-specific and that high-contrast body pattern components are significantly reduced during movement. Thus, in our experimental conditions, cuttlefish do not use high contrast motion dazzle. It may be that, in addition to being inherently conspicuous during movement, moving high-contrast patterns will attract attention because moving particles in coastal waters tend to be of small size and of low relative contrast. PMID:19692411

Zylinski, S.; Osorio, D.; Shohet, A. J.

2009-01-01

106

Optical and thermal characterization of natural (Sepia officinalis) melanin.  

PubMed

The optical properties and the thermal diffusivity of natural cuttlefish (Sepia officinalis) melanin have been measured. The optical absorption and scattering properties of melanin particles were determined at 580 nm and 633 nm, using photometric and photothermal techniques. For the photometric studies, the absorption and the transport scattering coefficients were determined from the measurements of diffuse reflectance and transmittance. The scattering anisotropy was obtained from an additional measurement of the total attenuation coefficient and independently obtained by goniometry. For photothermal studies, pulsed photothermal radiometry was used to deduce the absorption and transport scattering coefficients via a model based on optical diffusion theory. Pulsed photothermal radiometry was also used to provide the thermal diffusivity of solid melanin pressed pellets. PMID:8022888

Vitkin, I A; Woolsey, J; Wilson, B C; Anderson, R R

1994-04-01

107

Assessment of the effect of the climate variations of coastal surface water and study of Sepia officinalis spawing.  

PubMed

The aim of this study was to establish whether climate change affected migratory behaviour of Sepia officinalis (Linnaeus, 1758), which is an important resource for small-scale fishermen of Abruzzo region (Italy). Starting at the beginning of March until the end of April, the cuttlefish in this area migrates from deep cold water towards warmer coastal waters, where they spawn. Small-scale fishing of cuttlefish is permitted in costal waters from March to September. During the study period, between March and September 2008, both cuttlefish traps and trammel nets were used in 5 sampling areas along the Abruzzo coast to test their relative efficiency in catching cuttlefish. Trapped specimens were counted, weighed and measured, their gender and sexual maturity were also determined. The data obtained from the sampling were correlated to surface water temperature to assess possible changes in migration behaviours. The obtained data show that during the first months of migration (March and April), a greater percentage of large males was caught, while females and smaller males predominated later in the year. The study also showed that surface water temperature did not reveal any significant shifts from the trend over the last 10 years. As for the efficiency of the fishing methods, traps were found to be more effective than trammel nets. PMID:25110776

Giansante, Carla; Conte, Annamaria; Giovannini, Armando; Castriota, Luca; Andaloro, Franco; Ferri, Nicola

2014-01-01

108

Comparative morphology of changeable skin papillae in octopus and cuttlefish.  

PubMed

A major component of cephalopod adaptive camouflage behavior has rarely been studied: their ability to change the three-dimensionality of their skin by morphing their malleable dermal papillae. Recent work has established that simple, conical papillae in cuttlefish (Sepia officinalis) function as muscular hydrostats; that is, the muscles that extend a papilla also provide its structural support. We used brightfield and scanning electron microscopy to investigate and compare the functional morphology of nine types of papillae of different shapes, sizes and complexity in six species: S. officinalis small dorsal papillae, Octopus vulgaris small dorsal and ventral eye papillae, Macrotritopus defilippi dorsal eye papillae, Abdopus aculeatus major mantle papillae, O. bimaculoides arm, minor mantle, and dorsal eye papillae, and S. apama face ridge papillae. Most papillae have two sets of muscles responsible for extension: circular dermal erector muscles arranged in a concentric pattern to lift the papilla away from the body surface and horizontal dermal erector muscles to pull the papilla's perimeter toward its core and determine shape. A third set of muscles, retractors, appears to be responsible for pulling a papilla's apex down toward the body surface while stretching out its base. Connective tissue infiltrated with mucopolysaccharides assists with structural support. S. apama face ridge papillae are different: the contraction of erector muscles perpendicular to the ridge causes overlying tissues to buckle. In this case, mucopolysaccharide-rich connective tissue provides structural support. These six species possess changeable papillae that are diverse in size and shape, yet with one exception they share somewhat similar functional morphologies. Future research on papilla morphology, biomechanics and neural control in the many unexamined species of octopus and cuttlefish may uncover new principles of actuation in soft, flexible tissue. PMID:24741712

Allen, Justine J; Bell, George R R; Kuzirian, Alan M; Velankar, Sachin S; Hanlon, Roger T

2014-04-01

109

SEPIA: A Cooperative Hypermedia Authoring Environment  

Microsoft Academic Search

In this paper, we report about the design, development, and implementation of the SEPIA cooperative hyper- media authoring environment. It provides results on the following aspects of SEPIA: persistent and shared data storage, hypermedia data model with composites, so- phisticated and comprehensive authoring functionality, support for a new rhetoric and for cooperative work. We start by identifying the challenge of

Norbert A. Streitz; Jörg M. Haake; Jörg Hannemann; Andreas C. Lemke; Wolfgang Schuler; Helge Schtitt; Manfred Thüring

1992-01-01

110

Introduction Cephalopods (squid, cuttlefish, octopus) can produce a variety of  

E-print Network

2133 Introduction Cephalopods (squid, cuttlefish, octopus) can produce a variety of body patterns) is equally impressive, such as the zebra display in cuttlefish and the passing cloud display of various

Hanlon, Roger T.

111

A study of the electrical polarization of Sepia officinalis yolk envelope, a role for Na+/K+-ATPases in osmoregulation?  

PubMed Central

The cuttlefish Sepia officinalis mate and spawn in the intertidal zone where eggs are exposed during low tide to osmotic stress. Embryonic outer yolk sac is a putative site for osmoregulation of young S. officinalis embryos. By using electrophysiological recordings and immunostaining we showed, (i) that the chorion is only a passive barrier for ions, since large molecules could not pass through it, (ii) that a complex transepithelial potential difference occurs through the yolk epithelium, (iii) that ionocyte-like cells and Na+/K+-ATPases were localized in the yolk epithelium and (iv) that ouabain sensitive Na+/K+-ATPase activity could participate to this yolk polarization. These data warrant further study on the role of ion transport systems of this epithelium in the osmoregulation processes in S. officinalis embryos. PMID:24505501

Bonnaud, Laure; Franko, Delphine; Vouillot, Léna; Bouteau, François

2013-01-01

112

Reproductive versus somatic tissue growth during the life cycle of the cuttlefish Sepia pharaonis Ehrenberg, 1831  

Microsoft Academic Search

The effect of maturation on relative growth of somatic tissues was investigated by measuring and compar- ing monthly changes in dry weight of somatic tissues and reproductive or- gans. In both sexes, reproductive tis- sues grew in relation to total body mass; at maturity female reproductive tissue was 16% of total dry body mass, whereas male reproductive tissue was 2.6%.

Howaida R. Gabr; Roger T. Hanlon; Salah G. El-Etreby; Mahmoud H. Hanafy

113

Ocean acidification and temperature rise: effects on calcification during early development of the cuttlefish Sepia officinalis  

E-print Network

Ocean acidification and temperature rise: effects on calcification during early development organisms were expected to be particularly impacted by ocean acidification- driven changes in marine Principality of Monaco b. Biological Oceanography, Helmholtz Centre for Ocean Research (GEOMAR), 24105 Kiel

Boyer, Edmond

114

Cuttlefish skin papilla morphology suggests a muscular hydrostatic function for rapid changeability.  

PubMed

Coleoid cephalopods adaptively change their body patterns (color, contrast, locomotion, posture, and texture) for camouflage and signaling. Benthic octopuses and cuttlefish possess the capability, unique in the animal kingdom, to dramatically and quickly change their skin from smooth and flat to rugose and three-dimensional. The organs responsible for this physical change are the skin papillae, whose biomechanics have not been investigated. In this study, small dorsal papillae from cuttlefish (Sepia officinalis) were preserved in their retracted or extended state, and examined with a variety of histological techniques including brightfield, confocal, and scanning electron microscopy. Analyses revealed that papillae are composed of an extensive network of dermal erector muscles, some of which are arranged in concentric rings while others extend across each papilla's diameter. Like cephalopod arms, tentacles, and suckers, skin papillae appear to function as muscular hydrostats. The collective action of dermal erector muscles provides both movement and structural support in the absence of rigid supporting elements. Specifically, concentric circular dermal erector muscles near the papilla's base contract and push the overlying tissue upward and away from the mantle surface, while horizontally arranged dermal erector muscles pull the papilla's perimeter toward its center and determine its shape. Each papilla has a white tip, which is produced by structural light reflectors (leucophores and iridophores) that lie between the papilla's muscular core and the skin layer that contains the pigmented chromatophores. In extended papillae, the connective tissue layer appeared thinner above the papilla's apex than in surrounding areas. This result suggests that papilla extension might create tension in the overlying connective tissue and chromatophore layers, storing energy for elastic retraction. Numerous, thin subepidermal muscles form a meshwork between the chromatophore layer and the epidermis and putatively provide active papillary retraction. PMID:23378271

Allen, Justine J; Bell, George R R; Kuzirian, Alan M; Hanlon, Roger T

2013-06-01

115

The structure-function relationships of a natural nanoscale photonic device in cuttlefish chromatophores.  

PubMed

Cuttlefish, Sepia officinalis, possess neurally controlled, pigmented chromatophore organs that allow rapid changes in skin patterning and coloration in response to visual cues. This process of adaptive coloration is enabled by the 500% change in chromatophore surface area during actuation. We report two adaptations that help to explain how colour intensity is maintained in a fully expanded chromatophore when the pigment granules are distributed maximally: (i) pigment layers as thin as three granules that maintain optical effectiveness and (ii) the presence of high-refractive-index proteins-reflectin and crystallin-in granules. The latter discovery, combined with our finding that isolated chromatophore pigment granules fluoresce between 650 and 720 nm, refutes the prevailing hypothesis that cephalopod chromatophores are exclusively pigmentary organs composed solely of ommochromes. Perturbations to granular architecture alter optical properties, illustrating a role for nanostructure in the agile, optical responses of chromatophores. Our results suggest that cephalopod chromatophore pigment granules are more complex than homogeneous clusters of chromogenic pigments. They are luminescent protein nanostructures that facilitate the rapid and sophisticated changes exhibited in dermal pigmentation. PMID:24478280

Deravi, Leila F; Magyar, Andrew P; Sheehy, Sean P; Bell, George R R; Mäthger, Lydia M; Senft, Stephen L; Wardill, Trevor J; Lane, William S; Kuzirian, Alan M; Hanlon, Roger T; Hu, Evelyn L; Parker, Kevin Kit

2014-04-01

116

Lower hypoxia thresholds of cuttlefish early life stages living in a warm acidified ocean.  

PubMed

The combined effects of future ocean acidification and global warming on the hypoxia thresholds of marine biota are, to date, poorly known. Here, we show that the future warming and acidification scenario led to shorter embryonic periods, lower survival rates and the enhancement of premature hatching in the cuttlefish Sepia officinalis. Routine metabolic rates increased during the embryonic period, but environmental hypercapnia significantly depressed pre-hatchling's energy expenditures rates (independently of temperature). During embryogenesis, there was also a significant rise in the carbon dioxide partial pressure in the perivitelline fluid (PVF), bicarbonate levels, as well as a drop in pH and oxygen partial pressure (pO?). The critical partial pressure (i.e. hypoxic threshold) of the pre-hatchlings was significantly higher than the PVF oxygen partial pressure at the warmer and hypercapnic condition. Thus, the record of oxygen tensions below critical pO? in such climate scenario indicates that the already harsh conditions inside the egg capsules are expected to be magnified in the years to come, especially in populations at the border of their thermal envelope. Such a scenario promotes untimely hatching and smaller post-hatching body sizes, thus challenging the survival and fitness of early life stages. PMID:23926158

Rosa, Rui; Trübenbach, Katja; Repolho, Tiago; Pimentel, Marta; Faleiro, Filipa; Boavida-Portugal, Joana; Baptista, Miguel; Lopes, Vanessa M; Dionísio, Gisela; Leal, Miguel Costa; Calado, Ricardo; Pörtner, Hans O

2013-10-01

117

How visual edge features influence cuttlefish camouflage patterning Chuan-Chin Chiao a,b,  

E-print Network

How visual edge features influence cuttlefish camouflage patterning Chuan-Chin Chiao a-bodied cuttlefish. Previous studies have shown that cuttlefish body patterns are strongly influenced by visual edges in the substrate. The aim of the pres- ent study was to examine how cuttlefish body patterning is differentially

California at Irvine, University of

118

Scaffolds for bone restoration from cuttlefish  

Microsoft Academic Search

Scaffolds of pure hydroxyapatite suitable for either direct clinical use or tissue-engineering applications were successfully produced via hydrothermal transformation of aragonite, obtained from fresh cuttlefish bones, at 200°C followed by sintering. Beyond low production cost, worldwide availability and natural–biological origin of raw materials, the produced scaffolds have ideal pore size and interconnectivity features suitable for supporting biological activities, such as

J. H. G. Rocha; A. F. Lemos; S. Agathopoulos; P. Valério; S. Kannan; F. N. Oktar; J. M. F. Ferreira

2005-01-01

119

Golden Rice  

NSDL National Science Digital Library

This article offers basic knowledge about the origination of Golden Rice, including some basic concepts of rice physiology and genetic. This article is aimed at helping college students, rice growers or market managers who have some biology background to understand what Golden Rice is.

120

Simulated, Emulated, and Physical Investigative Analysis (SEPIA) of networked systems.  

SciTech Connect

This report describes recent progress made in developing and utilizing hybrid Simulated, Emulated, and Physical Investigative Analysis (SEPIA) environments. Many organizations require advanced tools to analyze their information system's security, reliability, and resilience against cyber attack. Today's security analysis utilize real systems such as computers, network routers and other network equipment, computer emulations (e.g., virtual machines) and simulation models separately to analyze interplay between threats and safeguards. In contrast, this work developed new methods to combine these three approaches to provide integrated hybrid SEPIA environments. Our SEPIA environments enable an analyst to rapidly configure hybrid environments to pass network traffic and perform, from the outside, like real networks. This provides higher fidelity representations of key network nodes while still leveraging the scalability and cost advantages of simulation tools. The result is to rapidly produce large yet relatively low-cost multi-fidelity SEPIA networks of computers and routers that let analysts quickly investigate threats and test protection approaches.

Burton, David P.; Van Leeuwen, Brian P.; McDonald, Michael James; Onunkwo, Uzoma A.; Tarman, Thomas David; Urias, Vincent E.

2009-09-01

121

Relations between total mercury, methylmercury and selenium in five tissues of Sepia officinalis captured in the south Portuguese coast.  

PubMed

Mercury, methylmercury and selenium were determined in digestive gland, branchial hearts, mantle, kidney and gills of Sepia officinalis from two areas of the south Portuguese coast. To the best of our knowledge these are the first data on Hg, MeHg and Se in branchial hearts, kidney and gills of cuttlefish. Digestive gland, branchial hearts and kidney presented higher levels of Hg and Se than mantle and gills. Methylmercury was significantly higher in digestive gland, branchial hearts and mantle. The enhanced levels of Hg in digestive gland and branchial heart reinforce the elevated storage capacity of these two tissues. The percentage of MeHg varied from 6.1% in gills to 92% in mantle. Linear and positive MeHg-Hg relations were obtained for the five tissues, being the better relation and higher slope observed for mantle, followed by branchial hearts, digestive gland, kidney and gills. The Se:Hg molar ratios showed a surplus of Se in all tissues. Calculations based on the equimolarity of Se:Hg point that 95-99% of Se are not linked to Hg (Se free). The negligible quantity of Se associated with Hg suggests that the mechanism of MeHg demethylation was not triggered in none of the tissues, presumably because the threshold for MeHg toxicity was not achieved. PMID:24582035

Raimundo, Joana; Pereira, Patrícia; Vale, Carlos; Canário, João; Gaspar, Miguel

2014-08-01

122

Statolith chemistry of two life history stages of cuttlefish: Effects of temperature and seawater trace element concentration  

NASA Astrophysics Data System (ADS)

The influence of seawater trace element concentration and temperature on statolith chemistry of the giant Australian cuttlefish, Sepia apama, was compared between encapsulated embryos and recently hatched juveniles under controlled laboratory conditions. Seawater Sr/Ca and Ba/Ca were positively related to statolith Sr/Ca and Ba/Ca in embryos and hatchlings for all temperatures. For statoliths of embryos the effect of spiking increased at 14 °C compared to 20 °C but for hatchlings increased Sr/Ca and Ba/Ca ratios in statoliths were found at 20 °C compared to 14 °C. The results imply that the influence of seawater trace element concentration and temperature on statolith chemistry was driven by elemental discrimination as described by partition coefficients but was reversed between life history stages. Differences in respiration and haemocyanin between the two life history stages may influence elemental uptake and discrimination. Thus, the results of the present study indicate that differences in element uptake in statoliths can occur among life history stages of S. apama and must be considered when reconstructing environmental histories of S. apama and other statolith bearing organisms.

Gillanders, Bronwyn M.; Wilkinson, Leanne M.; Munro, Andrew R.; de Vries, Melita C.

2013-01-01

123

Golden Sections  

ERIC Educational Resources Information Center

In this article, the author states that architects, musicians and other thoughtful people have, since the time of Pythagoras, been fascinated by various harmonious proportions. One, is the visual harmony attributed to Euclid, called "the golden section". He explores this concept in geometries of one, two and three dimensions. He added, that in…

Stuart, Stephen N.

2006-01-01

124

Hyperspectral imaging of cuttlefish camouflage indicates good color match in the eyes  

E-print Network

Hyperspectral imaging of cuttlefish camouflage indicates good color match in the eyes of fish domains, respectively. Cuttlefish can dynamically camouflage themselves on any natural substrate and to the substrate when viewed directly by humans or with RGB images. Live camouflaged cuttlefish on nat- ural

Hanlon, Roger T.

125

1996,52.529-537 Absence of social recognition in laboratory-reared cuttlefish,  

E-print Network

. .fllim. B.-htlV, 1996,52.529-537 @ Absence of social recognition in laboratory-reared cuttlefish the level of social recognition in captive-reared adult cuttlefish, Sepiaofficinalis L. No evidenceof Insli- Cuttlefish are neither solitary, .as arc octo- lute, 301 UnivcrsilY Blvd, Galveston, TX 77555

Boal, Jean

126

Accumulation, transformation and tissue distribution of domoic acid, the amnesic shellfish poisoning toxin, in the common cuttlefish, Sepia officinalis  

Microsoft Academic Search

Domoic acid (DA) is a phycotoxin produced by some diatoms, mainly from the Pseudo-nitzschia genus, and has been detected throughout the marine food web. Although DA has been frequently found in cephalopod prey such as crustaceans and fish, little is known about DA accumulation in these molluscs. This study presents the first data showing relevant concentrations of DA detected in

Pedro R. Costa; Rui Rosa; Alexandra Duarte-Silva; Vanda Brotas; Maria Antónia M. Sampayo

2005-01-01

127

Integration of sediment contamination with multi-biomarker responses in a novel potential bioindicator (Sepia officinalis) for risk assessment in impacted estuaries.  

PubMed

For the purpose of biomonitoring, species that combine ecological and commercial importance may provide a link between ecological and human health risk. The common cuttlefish, Sepia officinalis, holds both characteristics in south-western Europe, albeit remaining unsurveyed in ecotoxicological studies. Cuttlefish collected from an impacted estuary in SW Portugal and a reference location off the coast were analysed for a battery of biomarker responses in the digestive gland and gills. The contrast to reference animals revealed that biomarker responses, especially those related to oxidative stress, were consistent with sediment contamination by PAHs, even in a situation that combines complex toxicant mixtures, moderate levels of contamination and high ecotoxicological diversity. However, environmental parameters related to the differences between shore and estuarine habitats should not be overruled. Also, digestive gland metallothionein retained significant specificity to metals even though previous studies in the area with clams and fish failed to trigger a conclusive response. The highest net differences in biomarker responses were detected in the gills, likely indicating higher sensitivity to environmental stressors. Still, the digestive gland responses were overall the most consistent with sediment contamination and effectively differentiated between estuarine industrial- and rural-impacted sites. The results indicate that S. officinalis may be a candidate to meet the European Union's requirements for efficient biomonitoring programmes, with the additional importance of being cosmopolitan, abundant, commercially valuable and combining the molluscan biology that has been granting bivalves their high value for biomonitoring with foraging behaviour, thus better able to reflect anthropogenic stressors impacting a wider area than sedentary organisms. Nevertheless, further investigations in unpolluted sites are needed to better evaluate the background levels of biomarker responses in the species. PMID:24142132

Rodrigo, A P; Costa, P M; Costa, M H; Caeiro, S

2013-12-01

128

Photocopy of print (original sepia print is backward and in ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Photocopy of print (original sepia print is backward and in possession of MacDill Air Force Base, Civil Engineering, Tampa, Florida; 1953 architectural drawings by Horowick & Lee, Architects, Jacksonville, Florida) EXTERIOR ELEVATIONS - MacDill Air Force Base, Photography Laboratory, 2617 Florida Keys Avenue, Tampa, Hillsborough County, FL

129

Photocopy of print (original sepia print is backward and in ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Photocopy of print (original sepia print is backward and in possession of MacDill Air Force Base, Civil Engineering, Tampa, Florida; 1953 architectural drawings by Horowick & Lee, Architects, Jacksonville, Florida) FLOOR PLAN AND SCHEDULES - MacDill Air Force Base, Photography Laboratory, 2617 Florida Keys Avenue, Tampa, Hillsborough County, FL

130

Female impersonation as an alternative reproductive strategy in giant cuttlefish  

Microsoft Academic Search

Out of all the animals, the cephalopods possess an unrivalled ability to change their shape and body patterns. Our observations of giant cuttle¢sh (Sepia apama) suggest this ability has allowed them to evolve alternative mating strategies in which males can switch between the appearance of a female and that of a male in order to foil the guarding attempts of

Mark D. Norman; Julian Finn; Tom Tregenza

1999-01-01

131

On the architecture and function of cuttlefish bone  

Microsoft Academic Search

The internal shell of the cuttlefish, which acts as a rigid buoyancy tank, is structured to combine high compressive strength — since it must withstand the external hydrostatic pressure — with minimum weighT. The micro-architecture of cuttlebone has been examined by electron microscopy and the relevance of the structure to the mechanical duties required of the shellin vivo are briefly

J. D. Birchall; N. L. Thomas

1983-01-01

132

FaRP cell distribution in the developing CNS suggests the involvement of FaRPs in all parts of the chromatophore control pathway in Sepia officinalis (Cephalopoda).  

PubMed

The FMRFamide-related peptide (FaRP) family includes a wide range of neuropeptides that have a role in many biological functions. In cephalopods, these peptides intervene in the peculiar body patterning system used for communication and camouflage. This system is particularly well developed in the cuttlefish and is functional immediately after hatching (stage 30). In this study, we investigate when and how the neural structures involved in the control of body patterning emerge and combine during Sepia embryogenesis, by studying the expression or the production of FaRPs. We detected FaRP expression and production in the nervous system of embryos from the beginning of organogenesis (stage 16). The wider FaRP expression was observed concomitantly with brain differentiation (around stage 22). Until hatching, FaRP-positive cells were located in specific areas of the central and peripheral nervous system (CNS and PNS). Most of these areas were implicated in the control of body patterns, suggesting that FaRPs are involved in all parts of the neural body pattern control system, from the 'receptive areas' via the CNS to the chromatophore effectors. PMID:21397478

Aroua, Salima; Andouche, Aude; Martin, Madeleine; Baratte, Sébastien; Bonnaud, Laure

2011-04-01

133

INTRODUCTION Sound propagates with less attenuation underwater relative to  

E-print Network

, 1976), and one relative, the cuttlefish (Sepia officinalis), was reported to have startle responses behavioral conditioning experiments showing that squid, cuttlefish and octopus are sensitive to local water

134

INTERSPECIFIC AND GEOGRAPHICAL VARIATIONS OF TRACE METAL CONCENTRATIONS IN CEPHALOPODS FROM TUNISIAN WATERS  

E-print Network

cuttlefish (Sepia officinalis) and the European squid (Loligo vulgaris). Whatever the species or the sites of sex on metal concentration. KEYWORDS: Octopus, Cuttlefish, Squid, Trace elements, Bioaccumulation

Paris-Sud XI, Université de

135

BEHAVIORAL EVIDENCE FOR INTRASPECIFIC SIGNALING WITH ACHROMATIC AND POLARIZED LIGHT BY  

E-print Network

BEHAVIORAL EVIDENCE FOR INTRASPECIFIC SIGNALING WITH ACHROMATIC AND POLARIZED LIGHT BY CUTTLEFISH quantitatively by testing the behavior of Sepia officinalis, the common cuttlefish, as senders and receivers

Boal, Jean

136

125A.N. Popper and A. Hawkins (eds.), The Effects of Noise on Aquatic Life, Advances in Experimental Medicine and Biology 730, DOI 10.1007/978-1-4419-7311-5_28,  

E-print Network

, cuttlefish, octopods, and nautilus) are particularly interesting subjects for invertebrate sound detection sounds because squid were attracted to 600-Hz tones and cuttlefish (Sepia officinalis) elicited startle

137

Cuttlefish camouflage: The effects of substrate contrast and size in evoking uniform, mottle or disruptive body patterns  

E-print Network

Cuttlefish camouflage: The effects of substrate contrast and size in evoking uniform, mottle, Taiwan Received 25 September 2007; received in revised form 19 February 2008 Abstract Cuttlefish the background and neurally implementing an appropriate skin (or body) pattern. We investigated how cuttlefish

Hanlon, Roger T.

138

Surveying Noctural Cuttlefish Camouflage Behaviour using an AUV Stefan B. Williams, Oscar Pizarro, Martin How, Duncan Mercer,  

E-print Network

Surveying Noctural Cuttlefish Camouflage Behaviour using an AUV Stefan B. Williams, Oscar Pizarro stereo-imaging system was used to document nocturnal cam- ouflage behaviour in cuttlefish at a well known, nearly a thousand were seen to contain cuttlefish during post cruise analysis, with a large proportion

Hanlon, Roger T.

139

~ JOURNAL OF-~ . EXPERIMENTAL MARINE BIOLOGY  

E-print Network

, AND ECOLOGY ELSEVIER 230 (1998) 183-192 Socialrecognitionusing chemicalcuesin cuttlefish (Sepia officinalis;accepted23 March 1998 Abstract Forty-five full-sized, virgin cuttlefish (Sepia officinalis Linnaeus) were

Boal, Jean

140

The Golden Ratio  

ERIC Educational Resources Information Center

The Golden Ratio is sometimes called the "Golden Section" or the "Divine Proportion", in which three points: A, B, and C, divide a line in this proportion if AC/AB = AB/BC. "Donald in Mathmagicland" includes a section about the Golden Ratio and the ratios within a five-pointed star or pentagram. This article presents two computing exercises that…

Hyde, Hartley

2004-01-01

141

J.N. Havenhand: PUBLICATIONS (in reverse chronological order)  

E-print Network

.N. Havenhand (2006) Sperm motility and longevity in the giant cuttlefish, Sepia apama (Mollusca: Cephalopoda cuttlefish (Sepia apama). Proceedings of the Royal Society of London, Series B. 272: 1047-1051. van Camp L of mating success in a natural spawning aggregation of the giant cuttlefish (Sepia apama) in southern

Gamfeldt, Lars

142

Mating success of wild type and sepia mutants Drosophila melanogaster in different choice.  

PubMed

Mating behaviour of red-eyed (wt) and brown-eyed (sepia) Drosophila melanogaster was studied under light conditions. Mating success was directly observed in mating vials and techniques usually applied in the studies of sexual selection ("female choice" and "multiple choice"). The comparison of sexual activity of mutant and wild types clearly indicates that they are not equally successful in matings. Sepia eye colour mutation decreases sexual activity of Drosophila melanogaster males, influences the preference ability of females and decreases the number of progeny from homogamic mating of the se x se type, as well as from heterogamic copulations in which sepia females take part. Non-random mating of wild type males and sepia females (in "multiple-choice" situation), with genetically and phenotypically different individuals, could be another mechanism for conservation of genetic polymorphism in natural populations. PMID:16440285

Stani?, Snezana; Pavkovi?-Lucic, Sofija

2005-01-01

143

Journalof ComparativePsychology Copyright2003 hy the AmericanPsychologicalAssociation,Inc. 2003.Vol. 117,No.2. 149-155 0735-7036/03/$12.00 DOl: 10.1037/0735-7036.117.2.149  

E-print Network

for Spatial Learning in Cuttlefish (Sepia officinalis) Miranda A. Karson Jean Geary Boal Marine Biological Laboratory Laboratorymazeswereusedto studyspatial-learningcapabilitiesin cuttlefish(Sepiaofficina/is). using escape for reinforcement. In preliminary observations, cuttlefish in an artificial pond moved actively

Boal, Jean

144

first published online 2 December 2009, doi: 10.1098/rspb.2009.16942772010Proc. R. Soc. B Schwartz, Charles Chubb and Roger T. Hanlon  

E-print Network

, Emilia Sogin, Jillian and integration of multiple visual cues Cuttlefish dynamic camouflage: responses to on January 15, 2013rspb.royalsocietypublishing.orgDownloaded from #12;Cuttlefish dynamic camouflage examine whether cuttlefish, Sepia officinalis, show substrate or camouflage pattern preferences

California at Irvine, University of

145

Evidence of episodic-like memory in cuttlefish.  

PubMed

The recollection of past experiences allows us to recall what happened during a particular event, and where and when it occurred [1]. Since the first study on episodic-like memory in scrub-jays [2], there has been widespread acceptance of the idea that tests in animals should integrate the 'what', 'where' and 'when' components of a unique event that occurred in the past [3,4]. This is referred to as episodic-like memory rather than episodic memory per se, in acknowledgement of the lack of evidence for, or against, the phenomenological aspects that accompany episodic recollection in humans. So far, evidence for episodic-like memory has only been found in some birds and mammals. We show here that cuttlefish, cephalopod mollusks, keep track of what they have eaten, and where and how long ago they ate, in order to match their foraging behavior with the time of replenishing of different foods. Foraging in cuttlefish fulfils the criteria of 'what', 'where' and 'when' of unique events and thus provides behavioral evidence of episodic-like memory in an invertebrate. PMID:24309275

Jozet-Alves, Christelle; Bertin, Marion; Clayton, Nicola S

2013-12-01

146

The Golden Section.  

ERIC Educational Resources Information Center

The Golden Section, also known as the "Golden Mean" and the "Divine Proportion," is a ratio found in art and nature that has mathematical properties. This book explores these geometric and algebraic properties in a variety of activities. Construction problems, designs using the pentagon and pentagram, and opportunities to work through proofs are…

Runion, Garth E.

147

Cellular attachment and osteoblast differentiation of mesenchymal stem cells on natural cuttlefish bone  

PubMed Central

The purpose of this study was to describe an approach that aims to provide fundamental information for the application of natural cuttlefish bone. Before applying cuttlefish bone as a bone defect filling material, we evaluated proliferation, adhesion, and cell viability of human mesenchymal stem cells (hMSCs) cultured on cuttlefish bone. Cuttlefish bone was separated into two parts (dorsal shield and lamellar region) and each part was used. Cell proliferation and viability were assessed using the MTS assay and live/dead fluorescence staining method. The morphology was observed using scanning electron microscopy (SEM). hMSCs were stimulated with osteogenic medium and osteoblast differentiation was evaluated. The fluorescence images showed that the seeded cells grew well and that cell distribution was in accordance with the surface morphology of the cuttlefish bone. Compared with the dorsal shield, cells penetrated deeper into the three-dimensional inner space of the lamellar part. Furthermore, under osteogenic differentiation conditions, alkaline phosphatase activity increased and the mRNA expression of ALP, runt-related transcription factor 2, and collagen type I ?1 was increased in hMSCs cultured on both the dorsal shield and lamellar block. These results indicate the potential of cuttlefish bone as an ideal scaffold for bone regenerative materials. © 2012 Wiley Periodicals, Inc. J Biomed Mater Res Part A, 2012. PMID:22447716

Kim, Beom-Su; Kim, Jin Seong; Sung, Hark-Mo; You, Hyung-Keun; Lee, Jun

2012-01-01

148

Reference: Biol. Bull. 201: 269270. (October 2001) Cuttlefish Cue Visually on Area--Not Shape or Aspect Ratio--of Light Objects in the Substrate  

E-print Network

Reference: Biol. Bull. 201: 269­270. (October 2001) Cuttlefish Cue Visually on Area--Not Shape because it breaks up the animal's body outline by visual deception (2). Cuttlefish produce (by direct mantle of cuttlefish represents a random sample of white background objects (Fig. 1) that are common

Hanlon, Roger T.

149

Calcium carbonate crystallization on xiphoid of the cuttlefish  

NASA Astrophysics Data System (ADS)

A mollusc shell, the xiphoid from cuttlefish was found to be a substrate favouring the deposition of aragonite crystals from stable supersaturated solutions at pH 8.50 and 25°C. The crystallization was studied at constant solution composition, thus making it possible for a relatively large amount of the overgrowths to be formed and to be identified exclusively as aragonite crystals. The apparent order found from kinetics data was n=4.1±0.4, thus suggesting a polynuclear mechanism. A surface energy of 24±3 mJ m -2 was calculated for the growing phase and a four-ion cluster forming the critical nucleus, according to the classical nucleation theory.

Manoli, F.; Dalas, E.

2000-08-01

150

The use of Artemia sp. or mysids as food source for hatchlings of the cuttlefish (Sepia officinalis L.); effects on growth and survival throughout the life cycle  

Microsoft Academic Search

Twoexperiments were conducted to determine the effects ofArtemia sp. or mysids on growth and survival ofS. officinalis hatchlings, and their effect throughout thelife cycle. For experiment I, for the first 20 days, one group was fed adultArtemia sp. and the other was fed mysid shrimp(Paramysis nouvelli). Eggs laid by females in both groupswere counted and weighed, and hatchlings were weighed,

Pedro M. Domingues; António Sykes; José P. Andrade

2001-01-01

151

Philippine Golden Links  

NSDL National Science Digital Library

Designed by Kenneth Y. Ilio, Philippine Golden Links (also known as Tanikalang Ginto) has been online since 1994. The site contains numerous links, divided into thematic areas in an attempt to provide a broad range of online resources dealing with the Philippines. Two nice features on the site are the Golden Links of the Day and the Noteworthy Discovery of the Day. The Golden Links of the Day profile important links dealing with the Philippines, while the Noteworthy Discovery profiles new material on the Web. While the site does feature some commercial advertisements, there are some important resources covered here, and in particular, the sections dealing with travel and tourism throughout the area are thorough and authoritative.

152

William T. Golden - Appreciation  

NSDL National Science Digital Library

A short biography of William T. Golden who died October 7, 2007. Although he never worked as a scientist and didn’t receive his master’s degree in biology until age 70, he was one of the most influential figures in post-World War II American science.

153

The Golden Section Hypothesis  

ERIC Educational Resources Information Center

The golden section is a proportion the aesthetic properties of which have been extolled since antiquity. The data from five experiments in which subjects made dichotomous judgements of acquaintances on bipolar dimensions (e.g. pleasant-unpleasant) were reported. (Editor)

Benjafield, J.; Adams-Webber, J.

1976-01-01

154

Golden Age Spanish Sonnets  

NSDL National Science Digital Library

Created and maintained by Alix Ingber, Professor of Spanish at Sweet Briar College, this site hosts 107 Golden Age (Sixteenth Century) Spanish sonnets and English translations. The poems may be browsed by poet or by their first line. Each poet page includes links to related resources, most of which are in Spanish only. Also included are bibliographies and some other related links.

Ingber, Alix.

155

Animal behaviour Evidence for distributed  

E-print Network

Animal behaviour Evidence for distributed light sensing in the skin of cuttlefish, Sepia report that the skin of cuttlefish, Sepia officinalis, contains opsin transcripts suggesting a possible. Cuttlefish, along with a number of other cephalopod species, have been shown to be colour-blind. Since

Hanlon, Roger T.

156

EFFECTS OF INCREASED pCO2 AND TEMPERATURE ON TRACE ELEMENT1 (Ag, Cd and Zn) BIOACCUMULATION IN THE EGGS OF THE COMMON2  

E-print Network

IN THE EGGS OF THE COMMON2 CUTTLEFISH, SEPIA OFFICINALIS3 4 Lacoue-Labarthe, Thomas1,2, , Martin, Sophie2 of the cuttlefish Sepia officinalis are characterized by an increasing38 permeability of the eggshell during of the global change on the early-life stages of the cuttlefish.53 54 55 Keywords: metal; uptake; tissue

Paris-Sud XI, Université de

157

Radioisotopes demonstrate the contrasting bioaccumulation1 capacities of heavy metals in embryonic stages of cephalopod2  

E-print Network

contamination. Eggs of common cuttlefish Sepia officinalis,29 European squid Loligo vulgaris, common octopus efficiencies and distribution among different egg32 compartments. Cuttlefish eggs, in which hard shells enclose European squid Loligo vulgaris, the common octopus Octopus vulgaris and the common cuttlefish52 Sepia

Paris-Sud XI, Université de

158

Do cuttlefish (Cephalopoda) signal their intentions to conspecifics during agonistic encounters?  

Microsoft Academic Search

Abstract. Male cuttlefish adopt a specific body pattern during agonistic behaviour called the Intense Zebra Display. Some components of the Display were variable, especially the chromatic component termed ‘dark face’, which could vary in the degree of darkness. Facial darkness was measured using a video analysis system. Males that eventually withdrew from conspecifics without fighting maintained a lighter face during

SHELLEY A. ADAMO; R. T. HANLON

1996-01-01

159

The "Prawn-in-the-Tube" Procedure in the Cuttlefish: Habituation or Passive Avoidance Learning?  

ERIC Educational Resources Information Center

This study examines whether or not habituation contributes to the regulation of the inhibition of predatory behavior observed during the "prawn-in-the-tube" training procedure. When presented with prawns that are visible behind glass but untouchable, cuttlefish promptly learn to inhibit their capture attempts. The first three experiments…

Dickel, Ludovic; Chichery, Marie-Paule; Agin, Veronique; Chichery, Raymond

2006-01-01

160

From Trap to Nursery. Mitigating the Impact of an Artisanal Fishery on Cuttlefish Offspring  

PubMed Central

Background Overexploitation and the impact of several types of human activities have caused declines of marine resources. The direct and active involvement of fishermen in the management of marine resources is effective not only for resource conservation, but also for changing fishermen’s attitudes. In this study, we proposed and tested the efficacy and suitability of a measure for mitigating the impact of a trap fishery on cuttlefish eggs in the North Adriatic Sea. This measure directly involves fishermen in promoting the conservation of the early, and more vulnerable, stages of the cuttlefish life cycle. Methodology/Principal findings Through surveys on fishing boats and interviews with fishermen, we found that traps placed in coastal areas during the cuttlefish breeding season have a high impact on cuttlefish eggs, with over 3 million eggs likely being destroyed by 3750 traps of 15 fishermen in less than 3 miles of coast. The use of removable ropes attached inside traps as an additional substrate for egg deposition allowed the recovery of 23.7% of the eggs deposited on the traps on average, without affecting the catch rate of adults. Experiments examining hatching success in the field highlighted the need for a careful choice of hatching sites to maximise the efficacy of the mitigation measure. Conclusions/Significance The proposed mitigation measure reduced the impact of fishing on cuttlefish eggs, with no significant effect on the commercial catch. Fishermen showed a positive attitude towards the application of this measure, which is inexpensive and easy to employ. The direct involvement of fishermen in the management of this resource and the maintenance of traditional fishing methods are a novel aspect of the proposed measure and represent the basis for its success. PMID:24587390

Melli, Valentina; Riginella, Emilio; Nalon, Marco; Mazzoldi, Carlotta

2014-01-01

161

Modeling golden section in plants  

Microsoft Academic Search

Plants are complex structures, changing their shapes in response to environmental factors such as sunlight, water and neighboring plants. However, some mathematical rules can be found in their growth patterns, one of which is the golden section. The golden section can be observed in branching systems, phyllotaxis, flowers and seeds, and often the spiral arrangement of plant organs. In this

Lanling Zeng; Guozhao Wang

2009-01-01

162

This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research  

E-print Network

are the demersal long-fin squid Loligo forbesi and Loligo vulgaris, and the cuttlefish Sepia officinalis (Pierce et to southern Europe (Shaw, 1994). Landings of cuttlefish into the UK ranged from 1600 to 4900 tons during 1997

Pierce, Graham

163

Geographic, seasonal and ontogenetic variation in cadmium and mercury concentrations in squid (Cephalopoda: Teuthoidea) from UK waters  

E-print Network

, and the cuttlefish Sepia officinalis (Pierce et al., 1994a,b, 1998; Dunn, 1999; ICES, 2006). Annual landings of long in the UK is exported to southern Europe (Shaw, 1994). Landings of cuttlefish into the UK ranged from 1600

Paris-Sud XI, Université de

164

A "Mimic Octopus" in the Atlantic: Flatfish Mimicry and Camouflage by Macrotritopus defilippi  

E-print Network

: colonial tuni- cates, sponges, and tubes of polychaete worms. Among cuttlefish, small males of Sepia apama, the giant Australian cuttlefish, were found to mimic the posture and coloration of females to visually

Hanlon, Roger T.

165

SENSORY BIOLOGY 187 scribed as the respiratory current (I), shows that when the book  

E-print Network

of the Cuttlefish Sepia officinuZis Nadav Shashar, Ferenc I. Hdrosi, Anastazia T. Banaszak', and Roger T. Hanlon kynurenine and 3-hydroxykynurenine are synthesized within the lens. Cuttlefish, S. ojjYcinu/is, live

Hanlon, Roger T.

166

A Management Model of the Northwest African Cephalopod Fishery  

E-print Network

; cuttlefish, Sepia spp.; and squid. Loligo spp. These predictions are compared with actual harvest data to octopus. although some data are available on cuttlefish. Virtually no data have been reported for squiu

167

Beyond the Golden Age  

NASA Astrophysics Data System (ADS)

There is good reason to call the time period between Mariner 2's flyby of Venus to Voyager 2's encounter with Saturn ‘The Golden Age of Planetary Exploration.’ For a period of 20 years, through 1981, spacecraft were sent almost every month by the United States (and a lesser number by the Soviet Union). Overall, more than two dozen planetary bodies were studied during the program.Questions are frequently raised about programs beyond the year 2000. More pertinent are questions about plans between now and then. The National Aeronautics and Space Administration's (NASA) Advisory Council Solar System Exploration Committee (SSEC) has attempted to answer some of these questions in its 1983 report on Planetary Exploration Through Year 2000. The report attempts to identify ‘the essential attitudes of a viable program in planetary sciences’ and to define ‘new ways to reduce costs.’

Bell, Peter M.

168

@ CMS, Inc., 1996 TheVeliger39(4):342-347(OctoberI, 1996)  

E-print Network

of Cuttlefish, Sepia officinalis, ~ in Response to Visual Stimuli I' f by J. G. BOAL AND J. N. NI Marine. Octopus ventilation rate responds to chemical stimuli; here we tested whether cuttlefish ventilation rate-living juvenile cuttlefish. Although cuttlefish prefer crabs to fish and hunt them differently, no differences

Boal, Jean

169

vol. 169, no. 4 the american naturalist april 2007 Natural History Miscellany  

E-print Network

Camouflage by Cuttlefish Roger T. Hanlon,1,* Marie-Jose´ Naud,2, John W. Forsythe,3, Karina Hall,4,§ Anya C Australian cuttlefish Sepia apama situated on a temperate rock reef in southern Australia. Cuttlefish ceased 3% of cuttlefish were cam- ouflaged on the spawning ground, but at night 86% (71 of 83 cut- tlefish

Hanlon, Roger T.

170

26. A sepia photograph, 7 1/2" x 8 1/2" oh ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

26. A sepia photograph, 7 1/2" x 8 1/2" oh semi-matte paper, aerial oblique of central Terre Haute with negative inscribed letters (prints on positive as white) along the bottom margin, "(02105-631K-118) (3-10-37. 10:30A) (R-1000) (State Normal College, Terre Haute, Ind.)" This view taken looking east shows the gas building in the near foreground right. On the reverse in red pencil, "Campus Scenes 10" and in black pencil, "1937". Source: Indiana State University Archives. - John T. Beasley Building, 632 Cherry Street (between Sixth & Seventh Streets), Terre Haute, Vigo County, IN

171

Coleoid cephalopods (octopus, cuttlefish and squid) have high metabolic rates and a relatively low oxygen-carrying  

E-print Network

Coleoid cephalopods (octopus, cuttlefish and squid) have high metabolic rates and a relatively low of oxygen uptake (2.3-fold in Octopus vulgaris; Wells et al., 1983) is met by an increased cardiac output characteristics of the systemic cardiac muscle. Isolated cardiac muscle strips from Octopus vulgaris show

Altimiras, Jordi

172

Reprint Series: The Golden Measure. RS-9.  

ERIC Educational Resources Information Center

This is one in a series of SMSG supplementary and enrichment pamphlets for high school students. This series makes available expository articles which appeared in a variety of mathematical periodicals. Topics covered include: (1) the golden section; (2) the geometry of the pentagon and the golden section; (3) meet Mr. Tau; and (4) the golden

Schaaf, William L., Ed.

173

Characterization and potential use of cuttlefish skin gelatin hydrolysates prepared by different microbial proteases.  

PubMed

Composition, functional properties, and in vitro antioxidant activities of gelatin hydrolysates prepared from cuttlefish skin were investigated. Cuttlefish skin gelatin hydrolysates (CSGHs) were obtained by treatment with crude enzyme preparations from Bacillus licheniformis NH1, Bacillus mojavensis A21, Bacillus subtilis A26, and commercial alcalase. All CSGHs had high protein contents, 74.3-78.3%, and showed excellent solubility (over 90%). CSGH obtained by alcalase demonstrated high antioxidant activities monitored by ?-carotene bleaching, DPPH radical scavenging, lipid peroxidation inhibition, and reducing power activity. Its antioxidant activity remained stable or increased in a wide range of pH (1-9), during heating treatment (100°C for 240?min) and after gastrointestinal digestion simulation. In addition, alcalase-CSGH was incorporated into turkey meat sausage to determine its effect on lipid oxidation during 35 days of storage period. At 0.5?mg/g, alcalase-CSGH delayed lipid oxidation monitored by TBARS and conjugated diene up to 10 days compared to vitamin C. The results reveal that CSGHs could be used as food additives possessing both antioxidant activity and functional properties. PMID:25025053

Jridi, Mourad; Lassoued, Imen; Nasri, Rim; Ayadi, Mohamed Ali; Nasri, Moncef; Souissi, Nabil

2014-01-01

174

PCL-coated hydroxyapatite scaffold derived from cuttlefish bone: morphology, mechanical properties and bioactivity.  

PubMed

In the present study, poly(?-caprolactone)-coated hydroxyapatite scaffold derived from cuttlefish bone was prepared. Hydrothermal transformation of aragonitic cuttlefish bone into hydroxyapatite (HAp) was performed at 200°C retaining the cuttlebone architecture. The HAp scaffold was coated with a poly(?-caprolactone) (PCL) using vacuum impregnation technique. The compositional and morphological properties of HAp and PCL-coated HAp scaffolds were studied by means of X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA) and scanning electron microscopy (SEM) with energy dispersive X-ray (EDX) analysis. Bioactivity was tested by immersion in Hank's balanced salt solution (HBSS) and mechanical tests were performed at compression. The results showed that PCL-coated HAp (HAp/PCL) scaffold resulted in a material with improved mechanical properties that keep the original interconnected porous structure indispensable for tissue growth and vascularization. The compressive strength (0.88MPa) and the elastic modulus (15.5MPa) are within the lower range of properties reported for human trabecular bones. The in vitro mineralization of calcium phosphate (CP) that produces the bone-like apatite was observed on both the pure HAp scaffold and the HAp/PCL composite scaffold. The prepared bioactive scaffold with enhanced mechanical properties is a good candidate for bone tissue engineering applications. PMID:24268280

Milovac, Dajana; Gallego Ferrer, Gloria; Ivankovic, Marica; Ivankovic, Hrvoje

2014-01-01

175

Characterization and Potential Use of Cuttlefish Skin Gelatin Hydrolysates Prepared by Different Microbial Proteases  

PubMed Central

Composition, functional properties, and in vitro antioxidant activities of gelatin hydrolysates prepared from cuttlefish skin were investigated. Cuttlefish skin gelatin hydrolysates (CSGHs) were obtained by treatment with crude enzyme preparations from Bacillus licheniformis NH1, Bacillus mojavensis A21, Bacillus subtilis A26, and commercial alcalase. All CSGHs had high protein contents, 74.3–78.3%, and showed excellent solubility (over 90%). CSGH obtained by alcalase demonstrated high antioxidant activities monitored by ?-carotene bleaching, DPPH radical scavenging, lipid peroxidation inhibition, and reducing power activity. Its antioxidant activity remained stable or increased in a wide range of pH (1–9), during heating treatment (100°C for 240?min) and after gastrointestinal digestion simulation. In addition, alcalase-CSGH was incorporated into turkey meat sausage to determine its effect on lipid oxidation during 35 days of storage period. At 0.5?mg/g, alcalase-CSGH delayed lipid oxidation monitored by TBARS and conjugated diene up to 10 days compared to vitamin C. The results reveal that CSGHs could be used as food additives possessing both antioxidant activity and functional properties. PMID:25025053

Jridi, Mourad; Lassoued, Imen; Nasri, Rim; Ayadi, Mohamed Ali; Nasri, Moncef

2014-01-01

176

Micheal L Golden Deputy Chief  

E-print Network

information ­ Based on Standards that define terms, concepts and processes · Taxonomy (Soil & Plant) · ManualsMicheal L Golden Deputy Chief Soil Science & Resource Assessment USDA-NRCS Society of Range - signed by Deputy Chiefs for: Soil Science & Resource Assessment (SSRA) and Science & Technology (S

177

Spirals and the Golden Section  

Microsoft Academic Search

.  The author examines different types of spirals and their relationships to the Golden Section in order to provide the necessary\\u000a background so that logic rather than intuition can be followed, correct value judgments be made, and new ideas can be developed.

John Sharp

2002-01-01

178

Golden section: Preferred figural orientation  

Microsoft Academic Search

A hypothesis that the shape of the binocular visual field determines the supposed preference for rectangles possessing dimensions\\u000a similar to those of the golden section was tested by havltlg Ss draw pleasing rectangles. The results iudicated that rectangles\\u000a were oriented in correspondence with the shape of the visual field but there was, generally, a failure to obtain ratios approximating\\u000a the

H. R. Schiffman; RUTGERS UNTVERSTTY

1966-01-01

179

Characteristics of the tertiary egg membrane of cuttlefish Sepiella maindroni de Rochebrune  

NASA Astrophysics Data System (ADS)

We separated tertiary egg membrane (TGM) from 2- and 25-day-old eggs of cuttlefish Sepiella maindroni de Rochebrune, and revealed its ultrastructure, physical (solubility, barrier property) and biochemical (histology, histochemistry, nutritional components, bacteriostasis) characteristics. The results show that TGM could not be dissolved with natural seawater, alcohol, ether or hydrochloric acid (HCl), but it could be dissolved with 2-chloroethanol, diethylamine, and sodium hydroxide (NaOH). The black TGM was more effective in blocking off mud particulates, microorganisms ( Chlorella vulgaris, Vibrio alginolyticus) and lighter than the white TGM. The elasticity of black and white TGMs was 1.8 N and 1.5 N, respectively. There were some ink particulates and rod-shaped bacteria in the black TGM. The nutritional components were different between black and white TGMs: Lipid content was lower and protein content was higher in the black TGM. TGM could also inhibit the growth of Vibrio alginolyticus.

Wang, Chunlin; Fan, Xiaoxu; Jiang, Xiamin; Song, Weiwei; Xu, Yongjian

2010-11-01

180

Characterization of mannosylerythritol lipids containing hexadecatetraenoic acid produced from cuttlefish oil by Pseudozyma churashimaensis OK96.  

PubMed

Biosurfactants are surface-active compounds produced by microorganisms. Mannosylerythritol lipids (MEL) are promising biosurfactants produced by Ustilaginomycetes, and their physicochemical and biochemical properties differ depending on the chemical structure of their hydrophilic and/or hydrophobic moieties. To further develop MEL derivatives and expand their potential applications, we focused our attention on the use of cuttlefish oil, which contains polyunsaturated fatty acids (e.g., docosahexaenoic acid, C??:?, and eicosapentaenoic acid, C??:?, as the sole carbon source. Among the microorganisms capable of producing MEL, only nine strains were able to produce them from cuttlefish oil. On gas chromatography-mass spectrometry (GC/MS) analysis, we observed that Pseudozyma churashimaensis OK96 was particularly suitable for the production of MEL-A, a MEL containing hexadecatetraenoic acid (C??:?) (23.6% of the total unsaturated fatty acids and 7.7% of the total fatty acids). The observed critical micelle concentration (CMC) and surface tension at CMC of the new MEL-A were 5.7×10?? M and 29.5 mN/m, respectively, while those of MEL-A produced from soybean oil were 2.7×10?? M and 27.7 mN/m, respectively. With polarized optical and confocal laser scanning microscopies, the self-assembling properties of MEL-A were found to be different from those of conventional MEL. Furthermore, based on the DPPH radical-scavenging assay, the anti-oxidative activity of MEL-A was found to be 2.1-fold higher than that of MEL-A produced from soybean oil. Thus, the newly identified MEL-A is attractive as a new functional material with excellent surface-active and antioxidative properties. PMID:23648407

Morita, Tomotake; Kawamura, Daisuke; Morita, Naoki; Fukuoka, Tokuma; Imura, Tomohiro; Sakai, Hideki; Abe, Masahiko; Kitamoto, Dai

2013-01-01

181

The Golden Section in Architectural Theory  

Microsoft Academic Search

.  The never-ending—but always young—discussion about the Golden Section in architecture never lacks a hint at Luca Pacioli and\\u000a architectural theory. But what it always lacks is a thorough study of the Golden Section in architectural theory. This paper\\u000a aims to present this analysis. Marcus Frings traces the Golden Section from the mathematical and rather theoretical character\\u000a of Pacioli’s concept, the

Marcus Frings

2002-01-01

182

Golden optimal path in discrete-time dynamic optimization processes  

E-print Network

is called Golden if any state moves to the next state repeating the same Golden section in each transition divisions are the Golden section. Definition 2.1 A sequence x : {0, 1, . . .} R1 is called GoldenGolden optimal path in discrete-time dynamic optimization processes Seiichi IWAMOTO and Masami

Yasuda, Masami

183

Pervasive Developmental Disorders: A Golden Section Study .  

E-print Network

??Objectives. Pervasive developmental disability theories are combined with golden section research in an effort to understand how people organize and process interpersonal/social information. In order… (more)

Davison, Mitzie

2010-01-01

184

Marine and Freshwater Behaviour and Physiology June 2005; 38(2): 117125  

E-print Network

of juvenile cuttlefish (Sepia officinalis) to local water movements SPOGMAI KOMAK1 , JEAN G. BOAL2 , LUDOVIC remains unclear. To test whether cuttlefish show behavioural responses to local water movements, juvenile, moving, burrowing, orienting, and swimming. Cuttlefish responded to a wide range of frequencies (20

Boal, Jean

185

www.elsevier.com/locate/visres polarization  

E-print Network

.elsevier.com/locate/visres Cuttlefish use polarization sensitivity in predation on silvery fish Nadav Shashar a,b, Roland Hagan c, Jean of cuttlefish, we examined the preference of Sepia officina/is when presented with fish whose polarization reflection was greatly reduced versus fish whose polarization reflection was not affected. Cuttlefish preyed

Boal, Jean

186

Introduction Camouflage is a common and powerful adaptation to visual  

E-print Network

). Cephalopods (squid, octopus and cuttlefish, Phylum Mollusca, Order Cephalopoda) are unique in the animal of cuttlefish, disruptive patterning is shown in response to certain features of light objects in the visual on their body size. Here, we tested whether cuttlefish (Sepia officinalis) are able to match their disruptive

Hanlon, Roger T.

187

Current Biology 21, 17731782, November 8, 2011 2011 Elsevier Ltd All rights reserved DOI 10.1016/j.cub.2011.09.011 Alternative Sites of Synaptic Plasticity  

E-print Network

, in two phylogenet- ically close cephalopod mollusks, Octopus vulgaris and the cuttlefish Sepia and the cuttlefish the VL is characterized by the same simple fan-out fan-in connectivity architecture, composed in the cuttlefish plasticity is found at the fan-in cholin- ergic synaptic layer. Conclusions: Does this dramatic

Hochner, Binyamin

188

UNCORRECTED Anim Cogn (2006)  

E-print Network

Alves · Raymond Chichery · Jean Geary Boal · Ludovic Dickel 44 45 Orientation in the cuttlefish Sepia with vertebrates. A new spatial learning procedure56 using a T-maze was designed. In this maze, the cuttlefish57 cuttlefish showed59 an untrained side-turning preference (preference for turn-60 ing right or left) in the T

Boal, Jean

189

3. Herzog, E. H., M. K. Powers, and R. B. Barlow. 1996. Vis. Neu-Fish, R. H. Douglas, R. H., and M. B. A. Djamgoz eds. Chapman rosci. 13: 31-41. and Hall, Ltd. London, England.  

E-print Network

of cuttlefish, Sepia ofJicinalis (5), and possibly octopus (6) is partially linearly polarized (termed here"). In cuttlefish, the polarized patterns have been suggested to be produced by dermal reflecting cells such as those found in the "Pink iridophore arm stripes" (7). Cuttlefish are diurnal animals that interact

Hanlon, Roger T.

190

ANIMAL HUSBANDRY AND DISEASE Reference: Biol. Bull. 195: 223-225. (October, 1998)  

E-print Network

Laboratory Culture Techniques for the European Cuttlefish Sepia officim-dis Janice S. Hanley, Nadav Shashar Resources Center, Marine Biological Laboratory, Woods Hole, Massachusetts 02.543) The cuttlefish-scale re- circulating seawater systems. Recently, cuttlefish were brought to the Marine Resources Center

Hanlon, Roger T.

191

Contrasting accumulation biokinetics and distribution of 241 Am, Co, Cs, Mn and Zn during the  

E-print Network

the whole development time of the eggs of the common cuttlefish, Sepia officinalis Thomas Lacoue.10.008 #12;2 Abstract: Cuttlefish eggs were exposed to 241 Am, Co, Cs, Mn and Zn for different periods the cuttlefish egg development. Keywords: Metals; Radionuclide; Bioaccumulation; Embryo; Eggshell; Permeability

Paris-Sud XI, Université de

192

BIOACCUMULATION ET TRANSPORT DE DEUX RADIONUCLEIDES ARTIFICIELS (241 CS) AU TRAVERS DE LA PAROI DES OEUFS DE SEICHES  

E-print Network

RADIONUCLIDES (241 AM AND 134 CS) IN CUTTLEFISH EGGSHELL P. BUSTAMANTE1* , J-L. TEYSSI�2 , S.W. FOWLER2 , M of the common cuttlefish Sepia officinalis. Experiments were designed to determine the processes controlling of cuttlefish. Mots clés: RADIONUCLEIDES; BIOCINETIQUES; BIOACCUMULATION; CEPHALOPODES R�SUM�- Des

Paris-Sud XI, Université de

193

. JOURNAL OFEXPERIMENTAL MARINE BIOLOGY  

E-print Network

MarineBiologyandEcology, AND ECOLOGY ELSEVIER 235 (1999) 307-317 \\. ". '"" Distance chemoreception in the common cuttlefish, Sepia measurethe perceptionof chemicalstimuli by culturedjuvenile cuttlefish.The testtank hadopaquesidesand top to visually isolate the cuttlefish, A clear bottom permitted direct observationof funnel

Boal, Jean

194

ludovic Dickel* ---National ResourceCenterfor  

E-print Network

1999 ABSTRACT: The effect of early e_t"perienceon the growth and ontogeny of memOl'Yin cuttlefish " (Sepia officinalis) was studied using an associati\\'e learning protocol. Five groups of cuttlefish were in cuttlefish from Group SC intermediate between these (\\-\\JO groups. Retention peiformances of ('uttlefish ji

Boal, Jean

195

7 CFR 52.1847 - Colors of golden seedless raisins.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 2011-01-01 false Colors of golden seedless raisins...MARKETING ACT OF 1946 PROCESSED FRUITS AND VEGETABLES, PROCESSED...Seedless Raisins § 52.1847 Colors of golden seedless raisins. The color of Golden Seedless...

2011-01-01

196

7 CFR 52.1847 - Colors of golden seedless raisins.  

Code of Federal Regulations, 2014 CFR

...2014-01-01 2014-01-01 false Colors of golden seedless raisins...PRODUCTS INSPECTION ACT PROCESSED FRUITS AND VEGETABLES, PROCESSED...Seedless Raisins § 52.1847 Colors of golden seedless raisins. The color of Golden Seedless...

2014-01-01

197

7 CFR 52.1847 - Colors of golden seedless raisins.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 2012-01-01 false Colors of golden seedless raisins...MARKETING ACT OF 1946 PROCESSED FRUITS AND VEGETABLES, PROCESSED...Seedless Raisins § 52.1847 Colors of golden seedless raisins. The color of Golden Seedless...

2012-01-01

198

7 CFR 52.1847 - Colors of golden seedless raisins.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 2013-01-01 false Colors of golden seedless raisins...PRODUCTS INSPECTION ACT PROCESSED FRUITS AND VEGETABLES, PROCESSED...Seedless Raisins § 52.1847 Colors of golden seedless raisins. The color of Golden Seedless...

2013-01-01

199

12 CFR 750.4 - Permissible golden parachute payments.  

Code of Federal Regulations, 2013 CFR

...false Permissible golden parachute payments. 750.4 Section 750.4 Banks and...AFFECTING CREDIT UNIONS GOLDEN PARACHUTE AND INDEMNIFICATION...to pay the promised golden parachute and the...transaction described in section 208 of the...

2013-01-01

200

7 CFR 52.1849 - Grades of golden seedless raisins.  

Code of Federal Regulations, 2014 CFR

...2014-01-01 false Grades of golden seedless raisins. 52.1849 Section 52.1849 Agriculture Regulations...Processed Raisins 1 Type II-Golden Seedless Raisins § 52.1849 Grades of golden seedless raisins. Except...

2014-01-01

201

12 CFR 750.2 - Golden parachute payments prohibited.  

Code of Federal Regulations, 2012 CFR

... 2012-01-01 false Golden parachute payments prohibited. 750.2 Section 750.2 Banks and Banking...REGULATIONS AFFECTING CREDIT UNIONS GOLDEN PARACHUTE AND INDEMNIFICATION PAYMENTS § 750.2 Golden parachute payments...

2012-01-01

202

36 CFR 71.5 - Golden Eagle Passport.  

Code of Federal Regulations, 2012 CFR

...2012-07-01 false Golden Eagle Passport. 71.5 Section 71.5 Parks, Forests...RECREATION FEES § 71.5 Golden Eagle Passport. ...the purpose of this section, shall be defined... (c) The annual Golden Eagle Passport...

2012-07-01

203

36 CFR 71.5 - Golden Eagle Passport.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 false Golden Eagle Passport. 71.5 Section 71.5 Parks, Forests...RECREATION FEES § 71.5 Golden Eagle Passport. ...the purpose of this section, shall be defined... (c) The annual Golden Eagle Passport...

2013-07-01

204

7 CFR 52.1849 - Grades of golden seedless raisins.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 false Grades of golden seedless raisins. 52.1849 Section 52.1849 Agriculture Regulations...Processed Raisins 1 Type II-Golden Seedless Raisins § 52.1849 Grades of golden seedless raisins. Except...

2011-01-01

205

12 CFR 359.2 - Golden parachute payments prohibited.  

Code of Federal Regulations, 2010 CFR

... 2010-01-01 false Golden parachute payments prohibited. 359.2 Section 359.2 Banks and Banking...STATEMENTS OF GENERAL POLICY GOLDEN PARACHUTE AND INDEMNIFICATION PAYMENTS § 359.2 Golden parachute payments...

2010-01-01

206

36 CFR 71.5 - Golden Eagle Passport.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false Golden Eagle Passport. 71.5 Section 71.5 Parks, Forests...RECREATION FEES § 71.5 Golden Eagle Passport. ...the purpose of this section, shall be defined... (c) The annual Golden Eagle Passport...

2010-07-01

207

36 CFR 71.5 - Golden Eagle Passport.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 false Golden Eagle Passport. 71.5 Section 71.5 Parks, Forests...RECREATION FEES § 71.5 Golden Eagle Passport. ...the purpose of this section, shall be defined... (c) The annual Golden Eagle Passport...

2011-07-01

208

7 CFR 52.1848 - Sizes of golden seedless raisins.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 false Sizes of golden seedless raisins. 52.1848 Section 52.1848 Agriculture Regulations...Processed Raisins 1 Type II-Golden Seedless Raisins § 52.1848 Sizes of golden seedless raisins. The size...

2013-01-01

209

76 FR 52649 - Golden Triangle Storage, Inc.; Notice of Application  

Federal Register 2010, 2011, 2012, 2013, 2014

...Docket No. CP11-531-000] Golden Triangle Storage, Inc...Application On August 5, 2011, Golden Triangle Storage, Inc. (Golden Triangle) filed with the Federal...Commission) an application under section 7(c) of the Natural...

2011-08-23

210

7 CFR 989.7 - Golden Seedless raisins.  

Code of Federal Regulations, 2014 CFR

...2014-01-01 2014-01-01 false Golden Seedless raisins. 989.7 Section 989.7 Agriculture Regulations...Regulating Handling Definitions § 989.7 Golden Seedless raisins. Golden Seedless raisins means raisins,...

2014-01-01

211

7 CFR 52.1849 - Grades of golden seedless raisins.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 false Grades of golden seedless raisins. 52.1849 Section 52.1849 Agriculture Regulations...Processed Raisins 1 Type II-Golden Seedless Raisins § 52.1849 Grades of golden seedless raisins. Except...

2012-01-01

212

7 CFR 52.1848 - Sizes of golden seedless raisins.  

Code of Federal Regulations, 2014 CFR

...2014-01-01 false Sizes of golden seedless raisins. 52.1848 Section 52.1848 Agriculture Regulations...Processed Raisins 1 Type II-Golden Seedless Raisins § 52.1848 Sizes of golden seedless raisins. The size...

2014-01-01

213

7 CFR 52.1849 - Grades of golden seedless raisins.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 false Grades of golden seedless raisins. 52.1849 Section 52.1849 Agriculture Regulations...Processed Raisins 1 Type II-Golden Seedless Raisins § 52.1849 Grades of golden seedless raisins. Except...

2010-01-01

214

36 CFR 71.5 - Golden Eagle Passport.  

Code of Federal Regulations, 2014 CFR

...2014-07-01 false Golden Eagle Passport. 71.5 Section 71.5 Parks, Forests...RECREATION FEES § 71.5 Golden Eagle Passport. ...the purpose of this section, shall be defined... (c) The annual Golden Eagle Passport...

2014-07-01

215

7 CFR 989.7 - Golden Seedless raisins.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 2010-01-01 false Golden Seedless raisins. 989.7 Section 989.7 Agriculture Regulations...Regulating Handling Definitions § 989.7 Golden Seedless raisins. Golden Seedless raisins means raisins,...

2010-01-01

216

7 CFR 52.1849 - Grades of golden seedless raisins.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 false Grades of golden seedless raisins. 52.1849 Section 52.1849 Agriculture Regulations...Processed Raisins 1 Type II-Golden Seedless Raisins § 52.1849 Grades of golden seedless raisins. Except...

2013-01-01

217

12 CFR 1412.3 - Golden parachute payments prohibited.  

Code of Federal Regulations, 2013 CFR

... 2013-01-01 false Golden parachute payments prohibited. 1412.3 Section 1412.3 Banks and Banking...SYSTEM INSURANCE CORPORATION GOLDEN PARACHUTE AND INDEMNIFICATION PAYMENTS § 1412.3 Golden parachute payments...

2013-01-01

218

12 CFR 359.2 - Golden parachute payments prohibited.  

Code of Federal Regulations, 2014 CFR

... 2014-01-01 false Golden parachute payments prohibited. 359.2 Section 359.2 Banks and Banking...STATEMENTS OF GENERAL POLICY GOLDEN PARACHUTE AND INDEMNIFICATION PAYMENTS § 359.2 Golden parachute payments...

2014-01-01

219

7 CFR 52.1848 - Sizes of golden seedless raisins.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 false Sizes of golden seedless raisins. 52.1848 Section 52.1848 Agriculture Regulations...Processed Raisins 1 Type II-Golden Seedless Raisins § 52.1848 Sizes of golden seedless raisins. The size...

2010-01-01

220

12 CFR 750.4 - Permissible golden parachute payments.  

Code of Federal Regulations, 2012 CFR

...false Permissible golden parachute payments. 750.4 Section 750.4 Banks and...AFFECTING CREDIT UNIONS GOLDEN PARACHUTE AND INDEMNIFICATION...to pay the promised golden parachute and the...transaction described in section 208 of the...

2012-01-01

221

12 CFR 359.2 - Golden parachute payments prohibited.  

Code of Federal Regulations, 2011 CFR

... 2011-01-01 false Golden parachute payments prohibited. 359.2 Section 359.2 Banks and Banking...STATEMENTS OF GENERAL POLICY GOLDEN PARACHUTE AND INDEMNIFICATION PAYMENTS § 359.2 Golden parachute payments...

2011-01-01

222

12 CFR 1412.3 - Golden parachute payments prohibited.  

Code of Federal Regulations, 2014 CFR

... 2014-01-01 false Golden parachute payments prohibited. 1412.3 Section 1412.3 Banks and Banking...SYSTEM INSURANCE CORPORATION GOLDEN PARACHUTE AND INDEMNIFICATION PAYMENTS § 1412.3 Golden parachute payments...

2014-01-01

223

7 CFR 989.7 - Golden Seedless raisins.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 2013-01-01 false Golden Seedless raisins. 989.7 Section 989.7 Agriculture Regulations...Regulating Handling Definitions § 989.7 Golden Seedless raisins. Golden Seedless raisins means raisins,...

2013-01-01

224

12 CFR 750.2 - Golden parachute payments prohibited.  

Code of Federal Regulations, 2013 CFR

... 2013-01-01 false Golden parachute payments prohibited. 750.2 Section 750.2 Banks and Banking...REGULATIONS AFFECTING CREDIT UNIONS GOLDEN PARACHUTE AND INDEMNIFICATION PAYMENTS § 750.2 Golden parachute payments...

2013-01-01

225

12 CFR 359.2 - Golden parachute payments prohibited.  

Code of Federal Regulations, 2013 CFR

... 2013-01-01 false Golden parachute payments prohibited. 359.2 Section 359.2 Banks and Banking...STATEMENTS OF GENERAL POLICY GOLDEN PARACHUTE AND INDEMNIFICATION PAYMENTS § 359.2 Golden parachute payments...

2013-01-01

226

12 CFR 750.4 - Permissible golden parachute payments.  

Code of Federal Regulations, 2014 CFR

...false Permissible golden parachute payments. 750.4 Section 750.4 Banks and...AFFECTING CREDIT UNIONS GOLDEN PARACHUTE AND INDEMNIFICATION...to pay the promised golden parachute and the...transaction described in section 208 of the...

2014-01-01

227

12 CFR 750.2 - Golden parachute payments prohibited.  

Code of Federal Regulations, 2014 CFR

... 2014-01-01 false Golden parachute payments prohibited. 750.2 Section 750.2 Banks and Banking...REGULATIONS AFFECTING CREDIT UNIONS GOLDEN PARACHUTE AND INDEMNIFICATION PAYMENTS § 750.2 Golden parachute payments...

2014-01-01

228

7 CFR 989.7 - Golden Seedless raisins.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 2011-01-01 false Golden Seedless raisins. 989.7 Section 989.7 Agriculture Regulations...Regulating Handling Definitions § 989.7 Golden Seedless raisins. Golden Seedless raisins means raisins,...

2011-01-01

229

12 CFR 1412.3 - Golden parachute payments prohibited.  

Code of Federal Regulations, 2010 CFR

... 2010-01-01 false Golden parachute payments prohibited. 1412.3 Section 1412.3 Banks and Banking...SYSTEM INSURANCE CORPORATION GOLDEN PARACHUTE AND INDEMNIFICATION PAYMENTS § 1412.3 Golden parachute payments...

2010-01-01

230

77 FR 22185 - Golden Nematode; Removal of Regulated Areas  

Federal Register 2010, 2011, 2012, 2013, 2014

...This section of the FEDERAL REGISTER contains...No. APHIS-2011-0036] Golden Nematode; Removal of Regulated...interim rule that amended the golden nematode regulations by removing...these two townships are free of golden nematode, and we...

2012-04-13

231

7 CFR 989.7 - Golden Seedless raisins.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 2012-01-01 false Golden Seedless raisins. 989.7 Section 989.7 Agriculture Regulations...Regulating Handling Definitions § 989.7 Golden Seedless raisins. Golden Seedless raisins means raisins,...

2012-01-01

232

12 CFR 359.2 - Golden parachute payments prohibited.  

Code of Federal Regulations, 2012 CFR

... 2012-01-01 false Golden parachute payments prohibited. 359.2 Section 359.2 Banks and Banking...STATEMENTS OF GENERAL POLICY GOLDEN PARACHUTE AND INDEMNIFICATION PAYMENTS § 359.2 Golden parachute payments...

2012-01-01

233

12 CFR 1412.3 - Golden parachute payments prohibited.  

Code of Federal Regulations, 2011 CFR

... 2011-01-01 false Golden parachute payments prohibited. 1412.3 Section 1412.3 Banks and Banking...SYSTEM INSURANCE CORPORATION GOLDEN PARACHUTE AND INDEMNIFICATION PAYMENTS § 1412.3 Golden parachute payments...

2011-01-01

234

7 CFR 52.1848 - Sizes of golden seedless raisins.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 false Sizes of golden seedless raisins. 52.1848 Section 52.1848 Agriculture Regulations...Processed Raisins 1 Type II-Golden Seedless Raisins § 52.1848 Sizes of golden seedless raisins. The size...

2012-01-01

235

12 CFR 1412.3 - Golden parachute payments prohibited.  

Code of Federal Regulations, 2012 CFR

... 2012-01-01 false Golden parachute payments prohibited. 1412.3 Section 1412.3 Banks and Banking...SYSTEM INSURANCE CORPORATION GOLDEN PARACHUTE AND INDEMNIFICATION PAYMENTS § 1412.3 Golden parachute payments...

2012-01-01

236

7 CFR 52.1848 - Sizes of golden seedless raisins.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 false Sizes of golden seedless raisins. 52.1848 Section 52.1848 Agriculture Regulations...Processed Raisins 1 Type II-Golden Seedless Raisins § 52.1848 Sizes of golden seedless raisins. The size...

2011-01-01

237

Extraction, characterization and antioxidant property of chitosan from cuttlebone Sepia kobiensis (Hoyle 1885).  

PubMed

Chitin was extracted from the cuttlebone of Sepia kobiensis and chitosan was prepared through deacetylation. The chitosan was characterized for its structural, physical and thermal (CHN, DDA, FT-IR, NMR, XRD, Viscometric analysis, SEM and DSC) properties. Further, the chitosan exhibited the antioxidant activity of 50.68-74.36% at 1-10 mg ml(-1) and it also showed the reducing power of 0.28% at 1 mg ml(-1). At 10 mg ml(-1), the chitosan exhibited the scavenging ability of 46.17%, on 1,1-diphenyl-2-picrylhydrazyl radicals, 23.38-73.70% on superoxide radicals at 0.05-1.6 mg ml(-1) and 18.34% to 62.39% (0.1-3.2 mg ml(-1)) on hydroxyl radicals; whereas at 1-10 mg ml(-1) the chelating ability on ferrous ions was calculated as 49.74-73.59%. Based on the potential antioxidant activity, scavenging ability on hydroxyl radicals and chelating abilities on ferrous ions, the chitosan from the cuttlebone of S. kobiensis may not only be used as a potent natural antioxidant but also as a possible food quality enhancer ingredient in the pharmaceutical industry. PMID:24333227

Ramasamy, Pasiyappazham; Subhapradha, Namasivayam; Shanmugam, Vairamani; Shanmugam, Annaian

2014-03-01

238

Effects of chitin and sepia ink hybrid hemostatic sponge on the blood parameters of mice.  

PubMed

Chitin and sepia ink hybrid hemostatic sponge (CTSH sponge), a new biomedical material, was extensively studied for its bene?cial biological properties of hemostasis and stimulation of healing. However, studies examining the safety of CTSH sponge in the blood system are lacking. This experiment aimed to examine whether CTSH sponge has negative effect on blood systems of mice, which were treated with a dosage of CTSH sponge (135 mg/kg) through a laparotomy. CTSH sponge was implanted into the abdominal subcutaneous and a laparotomy was used for blood sampling from abdominal aortic. Several kinds of blood parameters were detected at different time points, which were reflected by coagulation parameters including thrombin time (TT), prothrombin time (PT), activated partial thromboplatin time (APTT), fibrinogen (FIB) and platelet factor 4 (PF4); anticoagulation parameter including antithrombin III (AT-III); fibrinolytic parameters including plasminogen (PLG), fibrin degradation product (FDP) and D-dimer; hemorheology parameters including blood viscosity (BV) and plasma viscosity (PV). Results showed that CTSH sponge has no significant effect on the blood parameters of mice. The data suggested that CTSH sponge can be applied in the ?eld of biomedical materials and has potential possibility to be developed into clinical drugs of hemostatic agents. PMID:24727395

Zhang, Wei; Sun, Yu-Lin; Chen, Dao-Hai

2014-04-01

239

Protective effect of chitosan from Sepia kobiensis (Hoyle 1885) cuttlebone against CCl4 induced hepatic injury.  

PubMed

Carbon tetrachloride (CCl4) is a potent hepatotoxic agent causing hepatic necrosis and it is widely used in animal models for induction of acute and chronic liver damage. The antioxidative and hepatoprotective effects of chitosan from Sepia kobiensis against CCl4 induced liver toxicity in Wistar rats was studied by measuring the activity of lipid peroxidation (TBARS, lipid hydroperoxides), non enzymatic antioxidant (GSH), antioxidant enzyme activities (SOD, CAT and GPx), liver marker enzymes (ALT and AST), lipid profile (FFA, TG, cholesterol and HDL cholesterol) and histopathological changes. Rats treated with chitosan against CCl4 toxicity showed significantly decreased levels of ALT and AST activities, total cholesterol, triglyceride and free fatty acid in plasma and tissue. Whereas the treatment with chitosan along with CCl4 showed markedly increased level of hepatic and circulatory in SOD, CAT, GPx and reduced glutathione and decreased the malondialdehyde level. Histopathological observations proved the marked hepatoprotective effect of chitosan. The CCl4 induced alterations in circulatory and hepatic antioxidant defense system were normalized by chitosan and it could be concluded that the hepatoprotective effect of chitosan may be due to its antioxidant and antilipidemic properties. PMID:24530330

Ramasamy, Pasiyappazham; Subhapradha, Namasivayam; Shanmugam, Vairamani; Shanmugam, Annaian

2014-04-01

240

Effects of Chitin and Sepia Ink Hybrid Hemostatic Sponge on the Blood Parameters of Mice  

PubMed Central

Chitin and sepia ink hybrid hemostatic sponge (CTSH sponge), a new biomedical material, was extensively studied for its bene?cial biological properties of hemostasis and stimulation of healing. However, studies examining the safety of CTSH sponge in the blood system are lacking. This experiment aimed to examine whether CTSH sponge has negative effect on blood systems of mice, which were treated with a dosage of CTSH sponge (135 mg/kg) through a laparotomy. CTSH sponge was implanted into the abdominal subcutaneous and a laparotomy was used for blood sampling from abdominal aortic. Several kinds of blood parameters were detected at different time points, which were reflected by coagulation parameters including thrombin time (TT), prothrombin time (PT), activated partial thromboplatin time (APTT), fibrinogen (FIB) and platelet factor 4 (PF4); anticoagulation parameter including antithrombin III (AT-III); fibrinolytic parameters including plasminogen (PLG), fibrin degradation product (FDP) and D-dimer; hemorheology parameters including blood viscosity (BV) and plasma viscosity (PV). Results showed that CTSH sponge has no significant effect on the blood parameters of mice. The data suggested that CTSH sponge can be applied in the ?eld of biomedical materials and has potential possibility to be developed into clinical drugs of hemostatic agents. PMID:24727395

Zhang, Wei; Sun, Yu-Lin; Chen, Dao-Hai

2014-01-01

241

ILME: a waterborne pheromonal peptide released by the eggs of Sepia officinalis.  

PubMed

A novel tetrapeptide modulating the oviduct contractions was characterized from egg mass of Sepia officinalis. After two purification steps by rpHPLC, an apparent pure fraction containing the biological activity was submitted to MALDI-TOF analysis. The mass spectrum revealed 6 peaks of m/z 293, 505, 596, 613, 728, and 745. The tissue peptide mapping performed in LC-MS demonstrated the occurrence of the m/z 505 peptide in the follicles, the full-grown oocytes, and in the eggs. This peptide was also recovered in the seawater after the incubation of full grown oocytes or eggs, demonstrating a release in the genital tract and in the environment. Edman degradation gave the following sequence: Ileu-Leu-Met-Glu. The synthetic peptide applied to the whole genital tract triggered a cyclisation of the contractions at 10(-14) M. ILME appeared to be a chemical messenger released by the oocytes and the eggs, and was able to exert both paracrine and pheromonal activity. PMID:10944467

Zatylny, C; Gagnon, J; Boucaud-Camou, E; Henry, J

2000-08-18

242

The Divine Ratio and Golden Rectangles.  

ERIC Educational Resources Information Center

The material examines aspects of Fibonacci and Lucas sequences, the generation of the Divine Ratio, and the nature of this ratio in golden rectangles, triangles, and figures made up of golden triangles. It is noted Lucas sequence is formed like Fibonacci but has one and three as the first elements. (Author/MP)

Cooper, Martin

1982-01-01

243

The aesthetic attractivity of the golden section  

Microsoft Academic Search

It is hypothesized that the presence of a golden section does not in and of itself add to the aesthetic attractivity of a pattern. Only as far as the realization of a golden section entails equivalences between parts of a pattern, will the aesthetic appeal of a pattern be enhanced. An experiment is reported in which this hypothesis is tested

Frans Boselie

1984-01-01

244

June 17, 1998 Firestone and Golden Medal  

E-print Network

Issue of June 17, 1998 Firestone and Golden Medal recipients honored for academic achievement Class by their academic programs or departments. The Golden award similarly distinguishes students completing honors, drama. Tiffany M. Kuo; Claremont, Calif.; music; "Artistic Creation in Music." Colin N. Milburn

Wobbrock, Jacob O.

245

The Golden Ratio--A Contrary Viewpoint  

ERIC Educational Resources Information Center

Many assertions about the occurrence of the golden ratio phi in art, architecture, and nature have been shown to be false, unsupported, or misleading. For instance, we show that the spirals found in sea shells, in particular the "Nautilus pompilius," are not in the shape of the golden ratio, as is often claimed. Some of the most interesting…

Falbo, Clement

2005-01-01

246

A Golden Eagle Perches in a Tree  

USGS Multimedia Gallery

A golden eagle perches in a tree at the William L. Finley National Wildlife Refuge, Oregon. USGS researchers are conducting research that will help support the FWS’s and energy industry efforts to reduce impacts to golden eagles from wind energy operations, including, of course, collision with...

247

Golden Quantum Oscillator and Binet-Fibonacci Calculus  

E-print Network

The Binet-Fibonacci formula for Fibonacci numbers is treated as a q-number (and q-operator) with Golden ratio bases $q=\\phi$ and $Q=-1/\\phi$. Quantum harmonic oscillator for this Golden calculus is derived so that its spectrum is given just by Fibonacci numbers. Ratio of successive energy levels is found as the Golden sequence and for asymptotic states it appears as the Golden ratio. This why we called this oscillator as the Golden oscillator. By double Golden bosons, the Golden angular momentum and its representation in terms of Fibonacci numbers and the Golden ratio are derived.

Oktay K. Pashaev; Sengul Nalci

2011-07-21

248

Discovering Phi: The Golden Ratio  

NSDL National Science Digital Library

Students discover the mathematical constant phi, the golden ratio, through hands-on activities. They measure dimensions of "natural objects"—a star, a nautilus shell and human hand bones—and calculate ratios of the measured values, which are close to phi. Then students learn a basic definition of a mathematical sequence, specifically the Fibonacci sequence. By taking ratios of successive terms of the sequence, they find numbers close to phi. They solve a squares puzzle that creates an approximate Fibonacci spiral. Finally, the instructor demonstrates the rule of the Fibonacci sequence via a LEGO® MINDSTORMS® NXT robot equipped with a pen. The robot (already created as part of the companion activity, The Fibonacci Sequence & Robots) draws a Fibonacci spiral that is similar to the nautilus shape.

AMPS GK-12 Program,

249

Golden Rice - Evaluating the Pros and Cons  

NSDL National Science Digital Library

This activity engages students in evaluating the evidence and arguments related to Golden Rice and other possible strategies for preventing vitamin A deficiency. Students use this information to develop evidence-based conclusions about Golden Rice and the prevention of vitamin A deficiency. Students also develop questions that could provide important additional information for evaluating the arguments in favor of and opposed to Golden Rice and related policy proposals. In addition, students analyze how two reasonably accurate articles can present totally opposing points of view on this complex policy issue.

Waldron, Ingrid

250

PCL-coated hydroxyapatite scaffold derived from cuttlefish bone: in vitro cell culture studies.  

PubMed

In the present study, we examined the potential of using highly porous poly(?-caprolactone) (PCL)-coated hydroxyapatite (HAp) scaffold derived from cuttlefish bone for bone tissue engineering applications. The cell culture studies were performed in vitro with preosteoblastic MC3T3-E1 cells in static culture conditions. Comparisons were made with uncoated HAp scaffold. The attachment and spreading of preosteoblasts on scaffolds were observed by Live/Dead staining Kit. The cells grown on the HAp/PCL composite scaffold exhibited greater spreading than cells grown on the HAp scaffold. DNA quantification and scanning electron microscopy (SEM) confirmed a good proliferation of cells on the scaffolds. DNA content on the HAp/PCL scaffold was significantly higher compared to porous HAp scaffolds. The amount of collagen synthesis was determined using a hydroxyproline assay. The osteoblastic differentiation of the cells was evaluated by determining alkaline phosphatase (ALP) activity and collagen type I secretion. Furthermore, cell spreading and cell proliferation within scaffolds were observed using a fluorescence microscope. PMID:25063118

Milovac, Dajana; Gamboa-Martínez, Tatiana C; Ivankovic, Marica; Gallego Ferrer, Gloria; Ivankovic, Hrvoje

2014-09-01

251

Hydrothermal synthesis and thermal evolution of carbonate-fluorhydroxyapatite scaffold from cuttlefish bones.  

PubMed

Phase composition, crystal structure and morphology of carbonated fluor/hydroxyapatite synthesized hydrothermally from aragonitic cuttlefish bones were studied by powder X-ray diffraction (PXRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) combined with energy dispersive X-ray spectroscopy (EDS). The product of synthesis has been characterized as carbonated fluor/hydroxyapatite with carbonate incorporated inside channel (A-type) and substituted for the PO4(3-) group (B-type). The vibration band at 874 cm(-1) assigned to bending (?2) mode undoubtedly confirmed carbonate substituted for PO4(3-) group, while the band at 880 cm(-1) was attributed to A-type carbonate substitution. The additional sharp and intense band at 865 cm(-1) considered as "non-apatitic" carbonate substitution is not assigned with certainty so far. Evolution of CO2 from tetrahedral (PO4(3-)) sites with the increase in heat-treatment temperature is evident by the changes in tetrahedral bond lengths and angles, as obtained by the Rietveld structure refinement. Also, changes in the isotropic temperature parameters for the 2a site point to A-type carbonate incorporation as well. PMID:25063156

Tkal?ec, Emilija; Popovi?, Jasminka; Orli?, Sebastijan; Milardovi?, Stjepan; Ivankovi?, Hrvoje

2014-09-01

252

A polycaprolactone/cuttlefish bone-derived hydroxyapatite composite porous scaffold for bone tissue engineering.  

PubMed

Cuttlefish bone (CB) is an attractive natural biomaterial source to obtain hydroxyapatite (HAp). In this study, a porous polycaprolactone (PCL) scaffold incorporating CB-derived HAp (CB-HAp) powder was fabricated using the solvent casting and particulate leaching method. The presence of CB-HAp in PCL/CB-HAp scaffold was confirmed by X-ray diffraction (XRD). Scanning electron microscopy (SEM) and porosity analysis showed that the average pore dimension of the fabricated scaffold was approximately 200-300 ?m, with ?85% porosity, and that the compressive modulus increased after addition of CB-HAp powders. In vitro tests such as cell proliferation assay, cytotoxicity analysis, cell attachment observations, and alkaline phosphatase activity assays showed that the PCL/CB-HAp scaffold could improve the proliferation, viability, adherence, and osteoblast differentiation rate of MG-63 cells. When surgically implanted into rabbit calvarial bone defects, consistent with the in vitro results, PCL/CB-HAp scaffold implantation resulted in significantly higher new bone formation than did implantation of PCL alone. These findings suggest that addition of CB-HAp powder to the PCL scaffold can improve cellular response and that the PCL/CB-HAp composite scaffold has great potential for use in bone tissue engineering. PMID:24259295

Kim, Beom-Su; Yang, Sun-Sik; Lee, Jun

2014-07-01

253

Activities: Golden Triangles, Pentagons, and Pentagrams.  

ERIC Educational Resources Information Center

Presents lesson plans for activities to introduce recursive sequences of polygons: golden triangles, regular pentagons, and pentagrams. The resulting number patterns involve Fibonacci sequences. Includes reproducible student worksheets. (MKR)

Miller, William A.; Clason, Robert G.

1994-01-01

254

Leonardo of Pisa and the Golden Rectangle  

NSDL National Science Digital Library

This brief article describes the number sequence of Leonardo of Pisa (Fibonacci), and its connecton to the golden ratio and rectangle. Links to related topics and a link to a printable page are included.

Team, Nrich

2012-01-01

255

The Mystery of the Golden Cube  

NSDL National Science Digital Library

Help Rex solve the mystery of the golden cube! You will need to decide if it is a rock, mineral, or a fossil. You will also need to examine the cubes shape, hardness, color, streak, density, cleavage, and fracture.

2000-01-01

256

Microsatellite DNA variation reveals high gene flow and panmictic populations in the Adriatic shared stocks of the European squid and cuttlefish (Cephalopoda)  

Microsoft Academic Search

In the semienclosed Adriatic Sea, the shared stocks of the cephalopods Loligo vulgaris and Sepia officinalis represent important marine fisheries resources exploited by all coastal countries. The improving of knowledge on the demographic features of these shared stocks is internationally relevant for adopting responsible management and conservation of these marine resources. Analyses of microsatellite variation in geographical samples collected from

F Garoia; I Guarniero; A Ramšak; N Ungaro; M Landi; C Piccinetti; P Mannini; F Tinti

2004-01-01

257

The golden ratio in special relativity  

Microsoft Academic Search

In this note we show that Euclid’s construction of the golden rectangle can be used to derive both the dilation of time intervals and the Lorentz contraction of lengths as predicted by Einstein’s theory of special relativity. In this simple exercise, the Lorentz factor arises as a direct consequence of the Pythagorean theorem, while the golden ratio, ?=1+5\\/2, is found

Leonardo Di G. Sigalotti; Antonio Mejias

2006-01-01

258

The politics of Golden Rice.  

PubMed

Genetic knowledge applicable to crop improvement has erupted over the past 60 years, and the techniques of introducing genes from one organism to another have enabled new varieties of crops not achievable by previously available methodologies of crop breeding. Research and particularly development of these GMO-crops to a point where they are useful for growers and consumers in most countries is subject to complex national and international rules arising out of the UN's Cartagena Protocol on Biosafety to the Convention on Biological Diversity, with 167 country signatories. (The USA and Canada are not signatories.) The Protocol was developed based on concerns initially expressed in the 1970's that such technology presented unusual risks to man and the environment. Those ideas have comprehensively and authoritatively been proven to be wrong. The Protocol has nevertheless spawned significant regulatory obstacles to the development of GMO-crop technology at great cost to global society and in conflict with many other UN objectives. The suspicion induced by the Protocol is also widely used, overtly or covertly, for political purposes. These points are illustrated by reference to the not-for-profit Golden Rice project. PMID:25437240

Dubock, Adrian

2014-07-01

259

Fibonacci Numbers and the Golden Section  

NSDL National Science Digital Library

In 1202, the mathematician Fibonacci investigated the problem of how fast rabbits could breed under ideal circumstances. This problem and many more are detailed at the Fibonacci Numbers and the Golden Section Website, made available by Dr. Ron Knott of the University of Surrey (UK). A new addition to the site is a link to a reference page of over 100 formulas and equations demonstrating the properties of Fibonacci, Phi, and Lucus numbers series. The site's many links are categorized in the following sections: Fibonacci Numbers and Golden sections in Nature; The Intriguing Mathematical World of Fibonacci and Phi; The Puzzling World of Fibonacci Numbers; The Golden String; Fibonacci: the Man and His Times; and More Applications of Fibonacci Numbers and Phi. This site, through its extensive listings of links, contains a plethora of mathematical theories, equations, and proofs based on Fibonacci numbers.

Knott, Ron.

260

A golden age of human pigmentation genetics.  

PubMed

The zebrafish golden mutation is characterized by the production of small and irregular-shaped melanin granules, resulting in a lightening of the pigmented lateral stripes of the animal. The recent positional cloning and localization of the golden gene, combined with genotype-phenotype correlations of alleles of its human orthologue (SLC24A5) in African-American and African-Caribbean populations, provide insights into the genetic and molecular basis of human skin colour. SLC24A5 promotes melanin deposition through maturation of the melanosome, highlighting the importance of ion-exchange in the function of this organelle. PMID:16857289

Sturm, Richard A

2006-09-01

261

Inflow and Infiltration in Golden Valley  

NSDL National Science Digital Library

The city of Golden Valley (MN) Web site offers the interactive Inflow and Infiltration in Golden Valley activity. This Flash based animation attempts to show homeowners how connecting a sump pump directly to the sewer system, besides being illegal, can cause other unforeseen problems. The characters explain that this could lead to higher water and sewer charges and even basement flooding of neighboring homes. Even though there isn't in-depth information on these subjects, the site does do a good job of explaining and illustrating how an average municipal sewerage system works, how a home sump pump works, and what happens to storm water.

262

TOURISM IN GOLDEN BAY Economic Impacts & Resource Use Issues  

E-print Network

TOURISM IN GOLDEN BAY Economic Impacts & Resource Use Issues - Preliminary Report - June 2000 NZ Tourism Research Institute Victoria University of Wellington Auckland University of Technology #12;INTRODUCTION Golden Bay's tourism industry faces a number of pressing issues. Intensifying competition

263

12 CFR 741.224 - Golden parachute and indemnification payments.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 2012-01-01 false Golden parachute and indemnification payments. 741.224 Section 741.224 Banks and Banking NATIONAL...State-Chartered Credit Unions § 741.224 Golden parachute and indemnification...

2012-01-01

264

12 CFR 741.224 - Golden parachute and indemnification payments.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 2013-01-01 false Golden parachute and indemnification payments. 741.224 Section 741.224 Banks and Banking NATIONAL...State-Chartered Credit Unions § 741.224 Golden parachute and indemnification...

2013-01-01

265

12 CFR 741.224 - Golden parachute and indemnification payments.  

Code of Federal Regulations, 2014 CFR

...2014-01-01 2014-01-01 false Golden parachute and indemnification payments. 741.224 Section 741.224 Banks and Banking NATIONAL...State-Chartered Credit Unions § 741.224 Golden parachute and indemnification...

2014-01-01

266

Turning Points of the Spherical Pendulum and the Golden Ratio  

ERIC Educational Resources Information Center

We study the turning point problem of a spherical pendulum. The special cases of the simple pendulum and the conical pendulum are noted. For simple initial conditions the solution to this problem involves the golden ratio, also called the golden section, or the golden number. This number often appears in mathematics where you least expect it. To…

Essen, Hanno; Apazidis, Nicholas

2009-01-01

267

36 CFR 71.15 - The Golden Eagle Insignia.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false The Golden Eagle Insignia. 71.15 Section 71.15 Parks, Forests... (1) The term “The Golden Eagle Insignia” (hereinafter...Insignia”) as used in this section, means the words “The Golden Eagle” and the...

2010-07-01

268

12 CFR 359.4 - Permissible golden parachute payments.  

Code of Federal Regulations, 2014 CFR

...false Permissible golden parachute payments. 359.4 Section 359.4 Banks and...OF GENERAL POLICY GOLDEN PARACHUTE AND INDEMNIFICATION...to pay the promised golden parachute and the...transaction as described in section 13 of the Act...

2014-01-01

269

12 CFR 359.4 - Permissible golden parachute payments.  

Code of Federal Regulations, 2013 CFR

...false Permissible golden parachute payments. 359.4 Section 359.4 Banks and...OF GENERAL POLICY GOLDEN PARACHUTE AND INDEMNIFICATION...to pay the promised golden parachute and the...transaction as described in section 13 of the Act...

2013-01-01

270

12 CFR 1412.5 - Permissible golden parachute payments.  

Code of Federal Regulations, 2012 CFR

...false Permissible golden parachute payments. 1412.5 Section 1412.5 Banks and...INSURANCE CORPORATION GOLDEN PARACHUTE AND INDEMNIFICATION...to pay the promised golden parachute and the...transaction as described in section 5.61 of the...

2012-01-01

271

12 CFR 359.4 - Permissible golden parachute payments.  

Code of Federal Regulations, 2010 CFR

...false Permissible golden parachute payments. 359.4 Section 359.4 Banks and...OF GENERAL POLICY GOLDEN PARACHUTE AND INDEMNIFICATION...to pay the promised golden parachute and the...transaction as described in section 13 of the Act...

2010-01-01

272

12 CFR 359.4 - Permissible golden parachute payments.  

Code of Federal Regulations, 2012 CFR

...false Permissible golden parachute payments. 359.4 Section 359.4 Banks and...OF GENERAL POLICY GOLDEN PARACHUTE AND INDEMNIFICATION...to pay the promised golden parachute and the...transaction as described in section 13 of the Act...

2012-01-01

273

36 CFR 71.15 - The Golden Eagle Insignia.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 false The Golden Eagle Insignia. 71.15 Section 71.15 Parks, Forests... (1) The term “The Golden Eagle Insignia” (hereinafter...Insignia”) as used in this section, means the words “The Golden Eagle” and the...

2011-07-01

274

12 CFR 1412.5 - Permissible golden parachute payments.  

Code of Federal Regulations, 2010 CFR

...false Permissible golden parachute payments. 1412.5 Section 1412.5 Banks and...INSURANCE CORPORATION GOLDEN PARACHUTE AND INDEMNIFICATION...to pay the promised golden parachute and the...transaction as described in section 5.61 of the...

2010-01-01

275

76 FR 73994 - Golden Parachute and Indemnification Payments; Technical Correction  

Federal Register 2010, 2011, 2012, 2013, 2014

...FICU) from making golden parachute and indemnification...to the definition of golden parachute payment pertaining...to plans offered under section 457 of the Internal Revenue...participation, vesting, etc. Section 457(f) plans are sometimes referred to as ``golden handcuffs''...

2011-11-30

276

12 CFR 1412.5 - Permissible golden parachute payments.  

Code of Federal Regulations, 2011 CFR

...false Permissible golden parachute payments. 1412.5 Section 1412.5 Banks and...INSURANCE CORPORATION GOLDEN PARACHUTE AND INDEMNIFICATION...to pay the promised golden parachute and the...transaction as described in section 5.61 of the...

2011-01-01

277

12 CFR 1412.5 - Permissible golden parachute payments.  

Code of Federal Regulations, 2014 CFR

...false Permissible golden parachute payments. 1412.5 Section 1412.5 Banks and...INSURANCE CORPORATION GOLDEN PARACHUTE AND INDEMNIFICATION...to pay the promised golden parachute and the...transaction as described in section 5.61 of the...

2014-01-01

278

Beyond the Golden Ratio: A Calculator-Based Investigation.  

ERIC Educational Resources Information Center

Describes computation of a continued radical to approximate the golden ratio and presents two well-known geometric interpretations of it. Uses guided-discovery to investigate different repeated radicals to see what values they approximate, the golden-rectangle interpretation of these continued radicals, and the golden-section interpretation. (KHR)

Glidden, Peter L.

2001-01-01

279

36 CFR 71.15 - The Golden Eagle Insignia.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 false The Golden Eagle Insignia. 71.15 Section 71.15 Parks, Forests... (1) The term “The Golden Eagle Insignia” (hereinafter...Insignia”) as used in this section, means the words “The Golden Eagle” and the...

2013-07-01

280

12 CFR 359.4 - Permissible golden parachute payments.  

Code of Federal Regulations, 2011 CFR

...false Permissible golden parachute payments. 359.4 Section 359.4 Banks and...OF GENERAL POLICY GOLDEN PARACHUTE AND INDEMNIFICATION...to pay the promised golden parachute and the...transaction as described in section 13 of the Act...

2011-01-01

281

50 CFR 622.247 - Landing golden crab intact.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 false Landing golden crab intact. 622.247 Section 622.247 Wildlife and Fisheries...MEXICO, AND SOUTH ATLANTIC Golden Crab Fishery of the South Atlantic...Region § 622.247 Landing golden crab intact. The...

2013-10-01

282

36 CFR 71.15 - The Golden Eagle Insignia.  

Code of Federal Regulations, 2014 CFR

...2014-07-01 false The Golden Eagle Insignia. 71.15 Section 71.15 Parks, Forests... (1) The term “The Golden Eagle Insignia” (hereinafter...Insignia”) as used in this section, means the words “The Golden Eagle” and the...

2014-07-01

283

12 CFR 1412.5 - Permissible golden parachute payments.  

Code of Federal Regulations, 2013 CFR

...false Permissible golden parachute payments. 1412.5 Section 1412.5 Banks and...INSURANCE CORPORATION GOLDEN PARACHUTE AND INDEMNIFICATION...to pay the promised golden parachute and the...transaction as described in section 5.61 of the...

2013-01-01

284

TRADURRE IN ITALIANO IL TESTO SEGUENTE: The Golden Section  

E-print Network

TRADURRE IN ITALIANO IL TESTO SEGUENTE: The Golden Section The diagram below shows two lines, AC can be regarded as one line called AB. The ratio of the line AC to CB is the Golden Section the equation: x = ( 5 - 1)/2 = 0.61803398875.... The reciprocal of the Golden Section is 1

Robbiano, Lorenzo

285

Golden Proportions for the Generalized Tribonacci Numbers  

ERIC Educational Resources Information Center

It is known that the ratios of consecutive terms of Fibonacci and Tribonacci sequences converge to the fixed ratio. In this article, we consider the generalized form of Tribonacci numbers and derive the "golden proportion" for the whole family of this generalized sequence. (Contains 2 tables.)

Shah, Devbhadra V.; Mehta, Darshana A.

2009-01-01

286

The Fibonacci Numbers and the Golden Section  

NSDL National Science Digital Library

This award-winning site explores not only who Fibonacci was, but also the Fibonacci number properties, where they occur in nature, and much, much more. Puzzles with answers, illustrations, diagrams, and graphs are included. The Golden Ratio and Lucas numbers are addressed here as well. This site contains over 200 pages of information.

Ron Knott, Ph.D.

2007-12-12

287

Introducing the Golden Section to Computer Science  

Microsoft Academic Search

The golden section appears in nature showing that this magical number represents the right answer for finding the optimal solution to many covering problems. We claim that it can also be quite profitable using this number in the context of computer science. This assertion is contrasted by showing how to solve two quite different (classes of) computer science problems on

Natalia López; Manuel Núñez; Ismael Rodríguez; Fernando Rubio

2002-01-01

288

Construing stigmatized identities: A golden section study  

Microsoft Academic Search

Objectives. In order to examine whether persons belonging to stigmatized groups are evaluated more negatively than others, this study employed the golden section hypothesis, which predicts that people organize their evaluations in a ratio of roughly 62% positive to 38% negative. Method. Surveys were administered to 154 participants, with 143 surveys analysed. Participants rated nine different identities (business person, politician,

Jonathan D. Raskin; Melanie T. Harasym; Matthew A. Mercuri; Rebekah M. Widrick

2008-01-01

289

Golden Section Relations in Interpersonal Judgment  

ERIC Educational Resources Information Center

A model of the organization of interpersonal judgments, based on the hypothesis that people tend to organize their judgments in Golden Section ratios, was presented. A theory of the process of interpersonal judgment, based on the notion that people judge acquaintances using a Fibonacci-like decision rule, was then developed. A computer simulation…

Benjafield, John; Green, T. R. G.

1978-01-01

290

Swimming Performance and Metabolism of Golden Shiners  

Technology Transfer Automated Retrieval System (TEKTRAN)

The swimming ability and metabolism of golden shiners, Notemigonus crysoleucas, was examined using swim tunnel respirometery. The oxygen consumption and tail beat frequencies at various swimming speeds, an estimation of the standard metabolic rate, and the critical swimming speed (Ucrit) was determ...

291

The Golden Heads of Balsamorhiza and Wyethia  

NSDL National Science Digital Library

The golden heads of Balsamorhiza and Wyethia covering the foothills herald spring in Utah's Wasatch Mountains. Balsamorhiza macrophylla, the cutleat balsamroot (shown here), commonly grows interspersed with B. sagittata (arrowleaf balsamroot) and W. amplexicaulis (mule's ear) on hillsides and in open woods.

Lynn Bohs (University of Utah; Department of Biology ADR; POSTAL)

2004-03-09

292

GOLDEN RICE GETS A BOOST FROM MAIZE  

Technology Transfer Automated Retrieval System (TEKTRAN)

Improving the nutritional quality of our plant-based food supply is a topic of active, interdisciplinary research. Previous efforts have led to the development of Golden Rice, a proof-of-concept transgenic line that was engineered with two carotenoid enzymes to produce beta-carotene (a pro-vitamin ...

293

Profile of Susan S. Golden Sujata Gupta  

E-print Network

of biological clocks in cyanobacteria (1). Because cyanobacteria are among Earth's earliest living organisms- thesis in cyanobacteria since graduate school. Her reason was simple: Cyanobacteria are single in cyanobacteria, Golden found herself well-positioned to identify the genes and proteins that make the clock tick

Bechtel, William

294

The "Golden Projects": China's National Networking Initiative.  

ERIC Educational Resources Information Center

For China, information technology and communications networks are a new solution to an old problem, reconstituting hierarchical state power. This article examines China's National Networking Initiative, "Golden Projects," within the context of economic and political reform to demonstrate an alternative to traditional economic based networking…

Lovelock, Peter; Clark, Theodore C.; Petrazzini, Ben A.

1996-01-01

295

Development of polymorphic expressed sequence tag-single sequence repeat markers in the common Chinese cuttlefish, Sepiella maindroni.  

PubMed

The common Chinese cuttlefish (Sepiella maindroni) is one of the popular edible cephalopod consumed across Asia. To facilitate the population genetic investigation of this species, we developed fourteen polymorphic microsatellite makers from expressed sequence tags of S. maindroni. The number of alleles at each locus ranged from 6 to 10 with an average of 7.9 alleles per locus. The ranges of observed and expected heterozygosity were from 0.615 to 0.962 and 0.685 to 0.888, respectively. Four loci were found deviated significantly from Hardy-Weinberg equilibrium. The polymorphism information content ranged from 0.638 to 0.833. These polymorphic microsatellite loci will be helpful for the population genetic, genetic linkage map, and other genetic studies of S. maindroni. PMID:25117305

Li, R H; Lu, S K; Zhang, C L; Song, W W; Mu, C K; Wang, C L

2014-01-01

296

Identification of the major ACE-inhibitory peptides produced by enzymatic hydrolysis of a protein concentrate from cuttlefish wastewater.  

PubMed

The aim of this work was the purification and identification of the major angiotensin converting enzyme (ACE) inhibitory peptides produced by enzymatic hydrolysis of a protein concentrate recovered from a cuttlefish industrial manufacturing effluent. This process consisted on the ultrafiltration of cuttlefish softening wastewater, with a 10 kDa cut-off membrane, followed by the hydrolysis with alcalase of the retained fraction. Alcalase produced ACE inhibitors reaching the highest activity (IC?? = 76.8 ± 15.2 ?g mL?¹) after 8 h of proteolysis. Sequential ultrafiltration of the 8 h hydrolysate with molecular weight cut-off (MWCO) membranes of 10 and 1 kDa resulted in the increased activity of each permeate, with a final IC?? value of 58.4 ± 4.6 ?g mL?¹. Permeate containing peptides lower than 1 kDa was separated by reversed-phase high performance liquid chromatography (RP-HPLC). Four fractions (A-D) with potent ACE inhibitory activity were isolated and their main peptides identified using high performance liquid chromatography coupled to an electrospray ion trap Fourier transform ion cyclotron resonance-mass spectrometer (HPLC-ESI-IT-FTICR) followed by comparison with databases and de novo sequencing. The amino acid sequences of the identified peptides contained at least one hydrophobic and/or a proline together with positively charged residues in at least one of the three C-terminal positions. The IC?? values of the fractions ranged from 1.92 to 8.83 ?g mL?¹, however this study fails to identify which of these peptides are ultimately responsible for the potent antihypertensive activity of these fractions. PMID:24619242

Amado, Isabel Rodríguez; Vázquez, José Antonio; González, Pilar; Esteban-Fernández, Diego; Carrera, Mónica; Piñeiro, Carmen

2014-03-01

297

Identification of the Major ACE-Inhibitory Peptides Produced by Enzymatic Hydrolysis of a Protein Concentrate from Cuttlefish Wastewater  

PubMed Central

The aim of this work was the purification and identification of the major angiotensin converting enzyme (ACE) inhibitory peptides produced by enzymatic hydrolysis of a protein concentrate recovered from a cuttlefish industrial manufacturing effluent. This process consisted on the ultrafiltration of cuttlefish softening wastewater, with a 10 kDa cut-off membrane, followed by the hydrolysis with alcalase of the retained fraction. Alcalase produced ACE inhibitors reaching the highest activity (IC50 = 76.8 ± 15.2 ?g mL?1) after 8 h of proteolysis. Sequential ultrafiltration of the 8 h hydrolysate with molecular weight cut-off (MWCO) membranes of 10 and 1 kDa resulted in the increased activity of each permeate, with a final IC50 value of 58.4 ± 4.6 ?g mL?1. Permeate containing peptides lower than 1 kDa was separated by reversed-phase high performance liquid chromatography (RP-HPLC). Four fractions (A–D) with potent ACE inhibitory activity were isolated and their main peptides identified using high performance liquid chromatography coupled to an electrospray ion trap Fourier transform ion cyclotron resonance-mass spectrometer (HPLC-ESI-IT-FTICR) followed by comparison with databases and de novo sequencing. The amino acid sequences of the identified peptides contained at least one hydrophobic and/or a proline together with positively charged residues in at least one of the three C-terminal positions. The IC50 values of the fractions ranged from 1.92 to 8.83 ?g mL?1, however this study fails to identify which of these peptides are ultimately responsible for the potent antihypertensive activity of these fractions. PMID:24619242

Rodríguez Amado, Isabel; Vázquez, José Antonio; González, Pilar; Esteban-Fernández, Diego; Carrera, Mónica; Piñeiro, Carmen

2014-01-01

298

Golden Section Search Example. This is an illustration of how the Golden Section search algorithm performs on the function f(x) = x 2  

E-print Network

Math 524 Golden Section Search Example. This is an illustration of how the Golden Section search Search will reduce it by an amount 1 2 + ffl. For the same amount of work, the Golden Section method can

Sharpley, Robert

299

The sisters of the golden section.  

PubMed

The golden proportion is widely believed to be extraordinarily prevalent in nature and the arts, which is often ascribed to it being the limit of the ratio between any two successive elements in the Fibonacci sequence. It is suggested here that the golden ratio may not be as exceptional as generally believed. Mathematically, some interesting properties are common to all members of a family of sequences, denoted ARS, characterised as solutions to the classic rabbit reproduction problem varying on some parameter, j, including the Fibonacci sequence as a prototypical member--ARS2. Furthermore, for j > 1, any limit of the ratio between successive elements in ARS(j), shares the same formal properties with all other such limits. Three actual interpretations and three further geometric applications of ARS3, all intimately analogous to corresponding ARS2 ones, are presented for the sake of illustration. Empirically, it is suggested here that, owing to the communality of interesting mathematical properties between ARS sequences, as well as between corresponding limits, nature might appear to have made use of some other limits, aside of its variegated use of the limit of ARS2--the golden ratio. Initial empirical clues are provided. Finally, the issue whether there really is special import to golden proportions in nature and the arts is revisited in view of some empirical comparisons of appearances related to Fibonacci numbers and ARS3 numbers, particular its limit (-1.466) and the inverse of that limit (-0.682). It is argued that the claim that Fibonacci-related numbers are especially distinguished seems to warrant a more qualified approach than it has often met. PMID:21936299

Navon, David

2011-01-01

300

Battling golden algae: Results suggest preventative lake managment approaches  

E-print Network

14 tx H2O Winter 2011 Story by Danielle Supercinski Battling golden algae Results suggest preventative lake management approaches Golden algae blooms, or the explosive growth of algae, are known to be toxic, but recent #28;ndings from... and then ending in late winter or spring,? Grover said. ?P. parvum populations are consistently low during summer. In contrast, laboratory growth 16 tx H2O Winter 2011 Battling golden algae Continued Through previous funding, researchers conducted in...

Supercinski, Danielle

2011-01-01

301

Battling Golden Algae: Results suggest preventative lake management approaches  

E-print Network

14 tx H2O Winter 2011 Story by Danielle Supercinski Battling golden algae Results suggest preventative lake management approaches Golden algae blooms, or the explosive growth of algae, are known to be toxic, but recent #28;ndings from... and then ending in late winter or spring,? Grover said. ?P. parvum populations are consistently low during summer. In contrast, laboratory growth 16 tx H2O Winter 2011 Battling golden algae Continued Through previous funding, researchers conducted in...

Supercinski, Danielle

2011-01-01

302

Identification and characteristics of the structural gene for the Drosophila eye colour mutant sepia, encoding PDA synthase, a member of the omega class glutathione S-transferases.  

PubMed

The eye colour mutant sepia (se1) is defective in PDA {6-acetyl-2-amino-3,7,8,9-tetrahydro-4H-pyrimido[4,5-b]-[1,4]diazepin-4-one or pyrimidodiazepine} synthase involved in the conversion of 6-PTP (2-amino-4-oxo-6-pyruvoyl-5,6,7,8-tetrahydropteridine; also known as 6-pyruvoyltetrahydropterin) into PDA, a key intermediate in drosopterin biosynthesis. However, the identity of the gene encoding this enzyme, as well as its molecular properties, have not yet been established. Here, we identify and characterize the gene encoding PDA synthase and show that it is the structural gene for sepia. Based on previously reported information [Wiederrecht, Paton and Brown (1984) J. Biol. Chem. 259, 2195-2200; Wiederrecht and Brown (1984) J. Biol. Chem. 259, 14121-14127; Andres (1945) Drosoph. Inf. Serv. 19, 45; Ingham, Pinchin, Howard and Ish-Horowicz (1985) Genetics 111, 463-486; Howard, Ingham and Rushlow (1988) Genes Dev. 2, 1037-1046], we isolated five candidate genes predicted to encode GSTs (glutathione S-transferases) from the presumed sepia locus (region 66D5 on chromosome 3L). All cloned and expressed candidates exhibited relatively high thiol transferase and dehydroascorbate reductase activities and low activity towards 1-chloro-2,4-dinitrobenzene, characteristic of Omega class GSTs, whereas only CG6781 catalysed the synthesis of PDA in vitro. The molecular mass of recombinant CG6781 was estimated to be 28 kDa by SDS/PAGE and 56 kDa by gel filtration, indicating that it is a homodimer under native conditions. Sequencing of the genomic region spanning CG6781 revealed that the se1 allele has a frameshift mutation from 'AAGAA' to 'GTG' at nt 190-194, and that this generates a premature stop codon. Expression of the CG6781 open reading frame in an se1 background rescued the eye colour defect as well as PDA synthase activity and drosopterins content. The extent of rescue was dependent on the dosage of transgenic CG6781. In conclusion, we have discovered a new catalytic activity for an Omega class GST and that CG6781 is the structural gene for sepia which encodes PDA synthase. PMID:16712527

Kim, Jaekwang; Suh, Hyunsuk; Kim, Songhee; Kim, Kiyoung; Ahn, Chiyoung; Yim, Jeongbin

2006-09-15

303

Replication of four aquatic reoviruses in experimentally infected golden shiners (Notemigonus crysoleucas).  

PubMed

Golden shiners (Notemigonus crysoleucas) experimentally infected with four reoviruses supported replication of golden shiner virus as well as chum salmon virus, reovirus 13p2 and catfish reovirus at temperatures of 23 and 28 C. All four reoviruses replicated in golden shiners in this study. Natural infections of the golden shiner virus are known only in golden shiners. PMID:1656105

Brady, Y J; Plumb, J A

1991-07-01

304

Golden Section and the Art of Painting  

E-print Network

A statistical study on 565 works of art of different great painters was done and it was calculated the ratio of the 2 sides of a paintings. Assuming that all the painters under discussion enter in a statistics with equal weights it is shown that the average value obtained for the ratio of the sides is 1.34. This value, determined experimentally is significantly different from the value of the Golden Section F=1.618, which is a theoretical ratio, obtained from an abstract, mathematical theory, which supposedly ought to impress on a painting a supreme harmony.

Olariu, A

1999-01-01

305

Comparative study of physico-mechanical and antioxidant properties of edible gelatin films from the skin of cuttlefish.  

PubMed

Physicochemical properties of edible films based on cuttlefish skin gelatin extracted without (G0) or with different concentrations of pepsins (5 (G5), 10 (G10) and 15 (G15) U/g of skin) were investigated. Edible films prepared with partially hydrolyzed gelatins had lower tensile strength (TS) and elongation at break (EAB), but higher water vapour permeability (WVP) and water solubility than the control film. FTIR spectra of obtained gelatin films revealed a significant loss of molecular order of the triple helix. In addition, differential scanning calorimetric (DSC) analysis indicated that partially hydrolyzed gelatine films exhibited lower transition temperature and enthalpy compared with those of control film. The properties of the films were related to their microstructure, which was observed by scanning electron microscopy. Films with G0 and G5 had a smooth surface and a more compact structure, while films prepared with G10 and G15 had coarser surface. Thus, the chain length of extracted gelatin directly affected the properties of corresponding films. PMID:23820179

Jridi, Mourad; Souissi, Nabil; Mbarek, Aïcha; Chadeyron, Geneviève; Kammoun, Maher; Nasri, Moncef

2013-10-01

306

77 FR 25162 - Golden Spread Electric Cooperative, Inc. v. Southwestern Public Service Company; Notice of Complaint  

Federal Register 2010, 2011, 2012, 2013, 2014

...EL12-59-000] Golden Spread Electric Cooperative...2012, pursuant to sections 201, 206, and 306...RPSA) by and between Golden Spread and SPS and...ROE), contrary section 205 of the Federal Power Act. Golden Spread requests...

2012-04-27

307

7 CFR 301.85-9 - Movement of live golden nematodes.  

Code of Federal Regulations, 2012 CFR

... false Movement of live golden nematodes. 301.85-9 Section 301.85-9 Agriculture...DOMESTIC QUARANTINE NOTICES Golden Nematode Quarantine and Regulations...85-9 Movement of live golden nematodes....

2012-01-01

308

7 CFR 301.85-9 - Movement of live golden nematodes.  

Code of Federal Regulations, 2010 CFR

... false Movement of live golden nematodes. 301.85-9 Section 301.85-9 Agriculture...DOMESTIC QUARANTINE NOTICES Golden Nematode Quarantine and Regulations...85-9 Movement of live golden nematodes....

2010-01-01

309

7 CFR 301.85-9 - Movement of live golden nematodes.  

Code of Federal Regulations, 2011 CFR

... false Movement of live golden nematodes. 301.85-9 Section 301.85-9 Agriculture...DOMESTIC QUARANTINE NOTICES Golden Nematode Quarantine and Regulations...85-9 Movement of live golden nematodes....

2011-01-01

310

78 FR 46332 - Golden Spread Electric Cooperative, Inc. v. Southwestern Public Service Company; Notice of Complaint  

Federal Register 2010, 2011, 2012, 2013, 2014

...on July 19, 2013, Golden Spread Electric Cooperative, Inc. (Golden Spread or Complainant...Respondent), pursuant to sections 201, 206 and 309 of...ROE), contrary to section 205 of the Federal Power Act. Golden Spread requests a...

2013-07-31

311

76 FR 36979 - Golden Parachute and Indemnification Payments-Technical Correction  

Federal Register 2010, 2011, 2012, 2013, 2014

...Revise the definition of ``Golden Parachute Payment'' in...Definitions. * * * * * (e) Golden parachute payment * * * (2) Exceptions. The term golden parachute payment does not...compensation plan under section 457(b) of the...

2011-06-24

312

7 CFR 301.85-9 - Movement of live golden nematodes.  

Code of Federal Regulations, 2014 CFR

... false Movement of live golden nematodes. 301.85-9 Section 301.85-9 Agriculture...DOMESTIC QUARANTINE NOTICES Golden Nematode Quarantine and Regulations...85-9 Movement of live golden nematodes....

2014-01-01

313

7 CFR 301.85-9 - Movement of live golden nematodes.  

Code of Federal Regulations, 2013 CFR

... false Movement of live golden nematodes. 301.85-9 Section 301.85-9 Agriculture...DOMESTIC QUARANTINE NOTICES Golden Nematode Quarantine and Regulations...85-9 Movement of live golden nematodes....

2013-01-01

314

Elevated seawater PCO? differentially affects branchial acid-base transporters over the course of development in the cephalopod Sepia officinalis.  

PubMed

The specific transporters involved in maintenance of blood pH homeostasis in cephalopod molluscs have not been identified to date. Using in situ hybridization and immunohistochemical methods, we demonstrate that Na(+)/K(+)-ATPase (soNKA), a V-type H(+)-ATPase (soV-HA), and Na(+)/HCO(3)(-) cotransporter (soNBC) are colocalized in NKA-rich cells in the gills of Sepia officinalis. mRNA expression patterns of these transporters and selected metabolic genes were examined in response to moderately elevated seawater Pco(2) (0.16 and 0.35 kPa) over a time course of 6 wk in different ontogenetic stages. The applied CO(2) concentrations are relevant for ocean acidification scenarios projected for the coming decades. We determined strong expression changes in late-stage embryos and hatchlings, with one to three log2-fold reductions in soNKA, soNBCe, socCAII, and COX. In contrast, no hypercapnia-induced changes in mRNA expression were observed in juveniles during both short- and long-term exposure. However, a transiently increased ion regulatory demand was evident during the initial acclimation reaction to elevated seawater Pco(2). Gill Na(+)/K(+)-ATPase activity and protein concentration were increased by ~15% during short (2-11 days) but not long-term (42-days) exposure. Our findings support the hypothesis that the energy budget of adult cephalopods is not significantly compromised during long-term exposure to moderate environmental hypercapnia. However, the downregulation of ion regulatory and metabolic genes in late-stage embryos, taken together with a significant reduction in somatic growth, indicates that cephalopod early life stages are challenged by elevated seawater Pco(2). PMID:21307359

Hu, Marian Y; Tseng, Yung-Che; Stumpp, Meike; Gutowska, Magdalena A; Kiko, Rainer; Lucassen, Magnus; Melzner, Frank

2011-05-01

315

COMPLETE MIGRATION CYCLE OF GOLDEN EAGLES BREEDING IN NORTHERN QUEBEC  

Microsoft Academic Search

Abstract. Radio tracking via satellite was initiated to study the year-round movements of Golden Eagles (Aquila chrysaetos canadensis) breeding on the east coast of Hudson Bay, Quebec. In June and August 1992, six Golden Eagles (five adults and one juvenile) were marked, three ofwhich completed their year-round movements. The eagles left their breeding area in mid- to late October and

Serge Brodeur; David M. Bird; Mark Fuller

316

Golden Ratio in a Coupled-Oscillator Problem  

ERIC Educational Resources Information Center

The golden ratio appears in a classical mechanics coupled-oscillator problem that many undergraduates may not solve. Once the symmetry is broken in a more standard problem, the golden ratio appears. Several student exercises arise from the problem considered in this paper.

Moorman, Crystal M.; Goff, John Eric

2007-01-01

317

A fuzzy linguistic interpretation of the golden section  

Microsoft Academic Search

In this paper, a fuzzy linguistic interpretation of the golden section is presented. Conventionally, in geometrical approach, the golden section partitions a search interval into a major subsegment and a minor subsegment in such a way that the ratio of the whole to the major equals the ratio of the major to the minor. In fuzzy linguistic interpretation, two natural

Thananchai Leephakpreeda

2006-01-01

318

A "Projective" Test of the Golden Section Hypothesis.  

ERIC Educational Resources Information Center

In a projective test of the golden section hypothesis, 24 high school students rated themselves and 10 comic strip characters on basis of 12 bipolar constructs. Overall proportion of cartoon figures which subjects assigned to positive poles of constructs was very close to golden section. (Author/NB)

Lee, Chris; Adams-Webber, Jack

1987-01-01

319

A Golden Section approach to optimization of automotive friction materials  

Microsoft Academic Search

A Golden Section approach combined with relational grade analysis is proposed as an experimental design tool helpful in the development of new automotive friction materials. Golden Section was used to design the volume fraction of the components systematically. The changes in friction performance (friction coefficient and wear) measured using Friction Assessment and Screening Test (FAST) can be correlated with component

Y. Lu

2003-01-01

320

Effects of loading density on golden shiner survival  

Technology Transfer Automated Retrieval System (TEKTRAN)

We conducted four hauling trips of 6 h each to investigate effects of loading density (120, 180, and 240 g fish/L) on survival of golden shiners Notemigonus crysoleucas. Commercially graded golden shiners (mean weight 3.3 g +/- 0.04 SE) were transported in insulated hauling tanks filled with fresh w...

321

International Trade in Natural Gas: Golden Age of LNG?  

E-print Network

International Trade in Natural Gas: Golden Age of LNG? Yichen Du and Sergey Paltsev Report No. 271;1 International Trade in Natural Gas: Golden Age of LNG? Yichen Du* and Sergey Paltsev* Abstract The introduction of liquefied natural gas (LNG) as an option for international trade has created a market for natural gas where

Gabrieli, John

322

A golden approach to ion channel inhibition?  

PubMed Central

Drugs are often used in combination and, for pharmacologists, the manner of their interactions can cast light on drug mechanisms and biological processes. Here we provide simplified descriptions of commonly used analytical methods for analysing drug combinations and describe a new and practical experimental solution to address the mechanistic question: ‘Do two channel-blocking drugs bind at the same site?’ We define two simple mathematical models that describe the effects of two channel blockers acting simultaneously at either the same (Syntopic Model) or different (Allotopic Model) binding sites within a channel pore. We find that the optimum concentrations of two drugs for distinguishing between the two models are related to the mathematical Golden Ratio. PMID:23972927

Jarvis, Gavin E.; Thompson, Andrew J.

2013-01-01

323

Identifying Introgressive Hybridization in Native Populations of California Golden Trout Based on Molecular Markers  

Microsoft Academic Search

The California golden trout Oncorhynchus mykiss aguabonita is one of three subspecies within the rainbow trout–redband trout complex endemic to the Kern River basin and historically restricted to Golden Trout Creek and the South Fork Kern River. Past allozyme studies have indicated that native populations of California golden trout in the Golden Trout Creek drainage may have become introgressed with

Jan F. Cordes; Molly R. Stephens; Marc A. Blumberg; Bernie May

2006-01-01

324

WORKING PAPER N 2008 -48 On the Golden Rule of capital accumulation  

E-print Network

is organized as follows. Section 2 presents the model. Section 3 derives the Golden Rule of capital of the Golden Rule, named the Lifetime Golden Rule. Section 5 concludes. 2 The model Let us consider an OLGWORKING PAPER N° 2008 - 48 On the Golden Rule of capital accumulation under endogenous longevity

Paris-Sud XI, Université de

325

12. Photocopy of photograph (from Golden Gate Park Museum, San ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

12. Photocopy of photograph (from Golden Gate Park Museum, San Francisco, California, 1850's) EXTERIOR, DETAIL OF FACADE OF MISSION SHOWING ARCHED WINDOWS, ENTRANCE AND BELFRY - Mission San Francisco Solano de Sonoma, First & Spain Streets, Sonoma, Sonoma County, CA

326

13. Photocopy of photograph (from Golden Gate Museum, San Francisco, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

13. Photocopy of photograph (from Golden Gate Museum, San Francisco, California, 1850's) EXTERIOR, VIEW OF CONVENTO BEFORE RESTORATION, 1850'S - Mission San Francisco Solano de Sonoma, First & Spain Streets, Sonoma, Sonoma County, CA

327

Robert Koch and the 'golden age' of bacteriology.  

PubMed

Robert Koch's discovery of the anthrax bacillus in 1876 launched the field of medical bacteriology. A 'golden age' of scientific discovery ensued. A century after Koch's death, we remember his life and work. PMID:20413340

Blevins, Steve M; Bronze, Michael S

2010-09-01

328

State of the Industry A New Golden Age?  

E-print Network

loses to truck and automobile 4Railroads: A New Golden Age? #12;The Nature of the Beast (Econ 101 of moving parts: · Mergers /shed feeder lines/two man crew/shed redundant operations, yards and tracks 13

Barkan, Christopher P.L.

329

A golden opportunity: Researchers making progress in understanding toxic algae  

E-print Network

from leaking septic systems. Roelke said sampling in open waters of Lake Granbury revealed a weak correlation between golden algae, bacteria, and dissolved organic matter. ?However, we have not ruled out yet that leaky septic systems might play a...

Wythe, Kathy

2008-01-01

330

Zwevende supergeleidende potten bakken Yingkai Huang Mark Golden  

E-print Network

Zwevende supergeleidende potten bakken Yingkai Huang Mark Golden huangy-atsign-science.uva.nl mgolden-atsign-science.uva.nl In de groep `Quantum electron matter' van het Van der Waals-Zeeman instituut

331

7. Historic American Buildings Survey From Golden Gate Park San ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

7. Historic American Buildings Survey From Golden Gate Park San Francisco, California Original: Ante 1860 Re-photo: February 1940 VIEW FROM SOUTH - Mission San Carlos Borromeo, Rio Road & Lausen Drive, Carmel-by-the-Sea, Monterey County, CA

332

5. Historic American Buildings Survey From Golden Gate Park ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

5. Historic American Buildings Survey From Golden Gate Park - San Francisco, California Original: c1860 Re-photo: February 1940 VIEW FROM NORTH - Mission San Carlos Borromeo, Rio Road & Lausen Drive, Carmel-by-the-Sea, Monterey County, CA

333

The Golden Years Don't Glitter for All  

MedlinePLUS

... JavaScript. The Golden Years Don't Glitter for All Life satisfaction in later years is highest in ... Saharan Africa, life satisfaction is very low at all ages, according to the study published Nov. 6 ...

334

Age-related stigma and the golden section hypothesis  

Microsoft Academic Search

Objectives: The present study used the golden section hypothesis, which predicts that people organize information in a ratio of 61.8% positive to 38.2% negative, to examine age-related identities. It was predicted that people would rate identities of the aging population in accordance with a reverse golden section hypothesis. That is, people would assign negative ratings 61.8% of the time and

Rebekah M. Widrick; Jonathan D. Raskin

2010-01-01

335

6th Golden Helix Pharmacogenomics Day: pharmacogenomics and individualized therapy  

PubMed Central

The Golden Helix Pharmacogenomics Days are international scientific meetings aiming to educate healthcare professionals and biomedical scientists about pharmacogenomics and personalized medicine. In this meeting report, we provide an overview of the scientific lectures and the topics discussed during the 6th Golden Helix Pharmacogenomics Day that was held in Belgrade, Serbia last June 5, 2012. The scientific program included lectures by the local and international speakers from Europe and the United States. PMID:23157848

2012-01-01

336

Restoration of the Golden Horn Estuary (Halic).  

PubMed

Restoration of the iconic Golden Horn Estuary in Istanbul, Turkey was a substantial political, logistical, ecological, and social challenge. Forty years of uncontrolled industrial and urban growth resulted in thick layers of anoxic sediment, toxic bacteria, strong hydrogen sulfide odor, and ecologically unlivable conditions. The major components of restoration, spanning two decades, have included (1) demolition and relocation of industries and homes along the shore, (2) creation of wastewater infrastructure, (3) removal of anoxic sludge from the estuary, (4) removal of a floating bridge that impeded circulation, and (5) creation of cultural and social facilities. Although Turkey is not known as an environmental leader in pollution control, the sum of these efforts was largely successful in revitalizing the area through dramatic water quality improvement. Consequently, the estuary is once again inhabitable for aquatic life as well as amenable to local resource users and foreign visitors, and Istanbul has regained a lost sense of cultural identity. This paper focuses on literature review and personal interviews to discuss the causes of degradation, solutions employed to rehabilitate the estuary, and subsequent physicochemical, ecological, and social changes. PMID:19781731

Coleman, Heather M; Kanat, Gurdal; Aydinol Turkdogan, F Ilter

2009-12-01

337

Progress towards the 'Golden Age' of biotechnology.  

PubMed

Biotechnology uses substances, materials or extracts derived from living cells, employing 22 million Europeans in a € 1.5 Tn endeavour, being the premier global economic growth opportunity this century. Significant advances have been made in red biotechnology using pharmaceutically and medically relevant applications, green biotechnology developing agricultural and environmental tools and white biotechnology serving industrial scale uses, frequently as process feedstocks. Red biotechnology has delivered dramatic improvements in controlling human disease, from antibiotics to overcome bacterial infections to anti-HIV/AIDS pharmaceuticals such as azidothymidine (AZT), anti-malarial compounds and novel vaccines saving millions of lives. Green biotechnology has dramatically increased food production through Agrobacterium and biolistic genetic modifications for the development of 'Golden Rice', pathogen resistant crops expressing crystal toxin genes, drought resistance and cold tolerance to extend growth range. The burgeoning area of white biotechnology has delivered bio-plastics, low temperature enzyme detergents and a host of feedstock materials for industrial processes such as modified starches, without which our everyday lives would be much more complex. Biotechnological applications can bridge these categories, by modifying energy crops properties, or analysing circulating nucleic acid elements, bringing benefits for all, through increased food production, supporting climate change adaptation and the low carbon economy, or novel diagnostics impacting on personalized medicine and genetic disease. Cross-cutting technologies such as PCR, novel sequencing tools, bioinformatics, transcriptomics and epigenetics are in the vanguard of biotechnological progress leading to an ever-increasing breadth of applications. Biotechnology will deliver solutions to unimagined problems, providing food security, health and well-being to mankind for centuries to come. PMID:23797042

Gartland, K M A; Bruschi, F; Dundar, M; Gahan, P B; Viola Magni, M p; Akbarova, Y

2013-07-01

338

Electrochemical proton-coupled electron transfer: Beyond the golden rule  

SciTech Connect

Electrochemical proton-coupled electron transfer rate constant expressions that interpolate between the golden rule and solvent-controlled limits are derived. These expressions include the effects of solvent dynamics and thus are applicable for a wide range of vibronic couplings and solvent relaxation times. The golden rule limit is defined in terms of weak vibronic coupling and fast solvent relaxation, and the solvent-controlled limit is defined in terms of strong vibronic coupling and slow solvent relaxation. In the golden rule limit, the rate constant is proportional to the square of the vibronic coupling and is independent of the solvent relaxation time. In the solvent-controlled limit, the rate constant is independent of the vibronic coupling and increases as the solvent relaxation time decreases. The interconversion between the solvent-controlled and golden rule limits can be induced by altering the proton donor-acceptor mode frequency and the overlap between the reactant and product proton vibrational wave functions, as well as the electronic coupling, the solvent relaxation time, and the overpotential. The kinetic isotope effect behaves differently in the solvent-controlled and golden rule limits and thus provides a unique probe for characterizing electrochemical proton-coupled electron transfer processes. The analogous rate constant expressions for electrochemical electron transfer and homogeneous proton-coupled electron transfer are also presented. The impact of electrode overpotential, solvent relaxation time, and proton donor-acceptor mode frequency on the rate constants are analyzed for model systems.

Navrotskaya, Irina; Hammes-Schiffer, Sharon [Department of Chemistry, Pennsylvania State University, 104 Chemistry Building, University Park, Pennsylvania 16802 (United States)

2009-07-14

339

Fatal acute toxoplasmosis in three golden lion tamarins (Leontopithecus rosalia).  

PubMed

Fatal acute toxoplasmosis was diagnosed in three golden lion tamarins (Leontopithecus rosalia), a breeding pair and their male offspring, by histology and immunohistochemistry. The distribution and severity of lesions differed among the animals, but the small intestine and the pancreaticoduodenal lymph nodes were especially affected. Protozoal organisms consistent with Toxoplasma gondii tachyzoites, often clustered, were seen in all lesions and were specifically immunostained with a T. gondii polyclonal antibody. The infection was probably acquired orally. Several breeding groups of golden lion tamarins have succumbed to toxoplasmosis both in North American and European zoos, so this disease should be considered an important problem in this endangered species. Toxoplasma gondii can cause latent infections in New World primates and therefore could potentially induce abortions or congenital infections in wild golden lion tamarins born from latently infected reintroduced females. PMID:9638627

Juan-Sallés, C; Prats, N; Marco, A J; Ramos-Vara, J A; Borrás, D; Fernández, J

1998-03-01

340

Old Sepia Photos  

ERIC Educational Resources Information Center

The author has always been fascinated by old photographs. As she looks at them, she wonders about the people. Who were they? What were their lives like? Where was this photo taken? A moment in time is frozen forever, for all to see. Inspired by old photographs, the author describes how her fifth-grade classes made their own "photographs" by…

Cunningham, Kathy

2010-01-01

341

The Golden Mean and the Physics of Aesthetics  

E-print Network

The golden mean, Phi, has been applied in diverse situations in art, architecture and music, and although some have claimed that it represents a basic aesthetic proportion, others have argued that it is only one of a large number of such ratios. We review its early history, especially its relationship to the Mount Meru of Pingala. We examine the succession divisions of 3, 7, and 22 in Indian music and suggest that it was derived from a multiplicative sequence arising from a variant of Mount Meru. We also speculate on the neurophysiological basis behind the sense that the golden mean is a pleasant proportion.

Kak, S

2004-01-01

342

Geographic Variability in Mitochondrial Introgression Among HybrGeographic Variability in Mitochondrial Introgression Among Hybridizingidizing Populations of GoldenPopulations of Golden--winged and Bluewinged and Blue--winged Warblerswinged Warblers  

E-print Network

.J. Lovette, Cornell Laboratory of Ornithology The Golden-winged Warbler (Vermivora chrysoptera. ABSTRACTABSTRACT The Golden-winged Warbler (Vermivora chrysoptera) has declined throughout the northeastern U

343

Ranking Fiscal Policy Rules: the Golden Rule of Public Finance vs. the Stability and Growth Pact  

E-print Network

1 Ranking Fiscal Policy Rules: the Golden Rule of Public Finance vs. the Stability and Growth Pact of the application of a "golden rule of public finance" to the European Union (EU). Blanchard and Giavazzi (2003

Paris-Sud XI, Université de

344

75 FR 27432 - Security Zone; Golden Guardian 2010 Regional Exercise; San Francisco Bay, San Francisco, CA  

Federal Register 2010, 2011, 2012, 2013, 2014

...Zone; Golden Guardian 2010 Regional Exercise; San Francisco Bay, San Francisco...support of Golden Guardian 2010 Regional Exercise. These temporary security zones are...the statewide port security full scale exercise. Persons and vessels are...

2010-05-17

345

76 FR 56492 - Culturally Significant Objects Imported for Exhibition Determinations: “Antico: The Golden Age of...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Exhibition Determinations: ``Antico: The Golden Age of Renaissance Bronzes'' Summary: Notice is hereby given of the following...included in the exhibition ``Antico: The Golden Age of Renaissance Bronzes,'' imported from abroad for temporary...

2011-09-13

346

Canopy Characteristics Affecting Avian Reproductive Success: The Golden-cheeked Warbler  

E-print Network

for this species are known to include mature juniper-oak (Juniperus-Quercus) woodlands; however, relationships between habitat characteristics and golden-cheeked warbler reproductive success remain unclear. Whereas the majority of golden-cheeked warbler research...

Klassen, Jessica Anne

2012-07-16

347

75 FR 8327 - Golden Pass Pipeline LLC; Notice of Request Under Blanket Authorization  

Federal Register 2010, 2011, 2012, 2013, 2014

...Federal Energy Regulatory Commission [CP10-59-000] Golden Pass Pipeline LLC; Notice of Request Under Blanket Authorization February 17, 2010. Take notice that on October 29, 2009, Golden Pass Pipeline, LLC (GPPL), filed in Docket No....

2010-02-24

348

Nest association of pumpkinseed, Lepomis gibbosus, and golden shiner, Notemigonus crysoleucas  

Microsoft Academic Search

I investigated the nest association of pumpkinseeds and golden shiners in an upstate New York pond. Golden shiners spawned\\u000a in about one-third of pumpkinseed nests. Field observations indicate that golden shiners preferred to spawn in nests of male\\u000a pumpkinseeds that attracted conspecific females, and avoided nests of pumpkinseeds that failed to do so. Golden shiners did\\u000a not spawn in any

Binbin Shao

1997-01-01

349

Afrotherian Conservation Number 4(May 2006) Radio-tracking Namib Desert golden  

E-print Network

Afrotherian Conservation Number 4(May 2006) Article: Radio-tracking Namib Desert golden moles Galen@calacademy.org The Namib Desert golden mole (Eremitalpa granti namibensis) weighs about 25 g and occupies the vast dune seas of the Namib Desert in Namibia. These golden moles hunt down invertebrate prey while travelling

350

50 CFR 22.25 - What are the requirements concerning permits to take golden eagle nests?  

Code of Federal Regulations, 2011 CFR

...permits to take golden eagle nests? 22.25 Section 22.25 Wildlife...criteria of this section, issue a permit...person to take golden eagle nests...population of golden eagles. The...contained within this section have...

2011-10-01

351

50 CFR 622.17 - South Atlantic golden crab controlled access.  

Code of Federal Regulations, 2012 CFR

... South Atlantic golden crab controlled access. 622.17 Section 622.17 Wildlife...1) of this section. A vessel with a permit to fish for golden crab in the northern...3) of this section. A vessel may possess golden crab only...

2012-10-01

352

50 CFR 622.17 - South Atlantic golden crab controlled access.  

Code of Federal Regulations, 2011 CFR

... South Atlantic golden crab controlled access. 622.17 Section 622.17 Wildlife...1) of this section. A vessel with a permit to fish for golden crab in the northern...3) of this section. A vessel may possess golden crab only...

2011-10-01

353

Highly Undersampled 3D Golden Ratio Radial Imaging with Iterative Reconstruction , H. Eggers2  

E-print Network

.5 ms, TR = 7.1 ms, flip angle = 10°, matrix size 1283 , applying 2D golden section sampling. 32766Highly Undersampled 3D Golden Ratio Radial Imaging with Iterative Reconstruction M. Doneva1 , H of CS for 3D dynamic imaging using highly undersampled 3D radial acquisition with golden ratio profile

Lübeck, Universität zu

354

12 CFR 303.244 - Golden parachute and severance plan payments.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 false Golden parachute and severance...payments. 303.244 Section 303.244 Banks...Filings § 303.244 Golden parachute and severance...Scope. Pursuant to section 18(k) of...in the case of golden parachute payments...procedures in this section apply to all...

2010-01-01

355

50 CFR 622.17 - South Atlantic golden crab controlled access.  

Code of Federal Regulations, 2010 CFR

... South Atlantic golden crab controlled access. 622.17 Section 622.17 Wildlife...1) of this section. A vessel with a permit to fish for golden crab in the northern...3) of this section. A vessel may possess golden crab only...

2010-10-01

356

Do People Prefer Irrational Ratios? A New Look at the Golden Section  

Microsoft Academic Search

The Golden Section is proposed to be the preferred ratio in many domains. Starting with Fechner, there were sev- eral empirical studies concerning the preference of the Golden Section with inconclusive results. Our main concern is that the Golden Section can neither perceived no produced exactly since it is an irrational number. Therefore, we propose to give a closer look

Christian Maier; Christoph Sonnenberg; Florian Spindler

2009-01-01

357

12 CFR 303.244 - Golden parachute and severance plan payments.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 false Golden parachute and severance...payments. 303.244 Section 303.244 Banks...Filings § 303.244 Golden parachute and severance...Scope. Pursuant to section 18(k) of...in the case of golden parachute payments...procedures in this section apply to all...

2011-01-01

358

12 CFR 303.244 - Golden parachute and severance plan payments.  

Code of Federal Regulations, 2014 CFR

...2014-01-01 false Golden parachute and severance...payments. 303.244 Section 303.244 Banks...Filings § 303.244 Golden parachute and severance...Scope. Pursuant to section 18(k) of...in the case of golden parachute payments...procedures in this section apply to all...

2014-01-01

359

50 CFR 622.241 - South Atlantic golden crab controlled access.  

Code of Federal Regulations, 2013 CFR

... South Atlantic golden crab controlled access. 622.241 Section 622.241 Wildlife...1) of this section. A vessel with a permit to fish for golden crab in the northern...3) of this section. A vessel may possess golden crab only...

2013-10-01

360

50 CFR 22.25 - What are the requirements concerning permits to take golden eagle nests?  

Code of Federal Regulations, 2010 CFR

...permits to take golden eagle nests? 22.25 Section 22.25 Wildlife...criteria of this section, issue a permit...person to take golden eagle nests...population of golden eagles. The...contained within this section have...

2010-10-01

361

12 CFR 303.244 - Golden parachute and severance plan payments.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 false Golden parachute and severance...payments. 303.244 Section 303.244 Banks...Filings § 303.244 Golden parachute and severance...Scope. Pursuant to section 18(k) of...in the case of golden parachute payments...procedures in this section apply to all...

2012-01-01

362

50 CFR 22.25 - What are the requirements concerning permits to take golden eagle nests?  

Code of Federal Regulations, 2012 CFR

...permits to take golden eagle nests? 22.25 Section 22.25 Wildlife...criteria of this section, issue a permit...person to take golden eagle nests...population of golden eagles. The...contained within this section have...

2012-10-01

363

Defining the crack pattern of RC beams through the golden section  

Microsoft Academic Search

Both in architecture and arts, the golden section has been exclusively taken into consideration for its geometrical properties. Specifically, among all the proportions, the golden section can inspire beauty. Indeed, it has driven the construction of buildings for centuries. Nevertheless, as discussed for the first time in the present paper, static equilibrium of structures calls the golden section into play.

A. P. Fantilli; B. Chiaia; C. Cennamo

2011-01-01

364

50 CFR 22.25 - What are the requirements concerning permits to take golden eagle nests?  

Code of Federal Regulations, 2013 CFR

...permits to take golden eagle nests? 22.25 Section 22.25 Wildlife...criteria of this section, issue a permit...person to take golden eagle nests...population of golden eagles. The...contained within this section have...

2013-10-01

365

12 CFR 303.244 - Golden parachute and severance plan payments.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 false Golden parachute and severance...payments. 303.244 Section 303.244 Banks...Filings § 303.244 Golden parachute and severance...Scope. Pursuant to section 18(k) of...in the case of golden parachute payments...procedures in this section apply to all...

2013-01-01

366

78 FR 27856 - Golden Nematode; Removal of Regulated Areas in Livingston and Steuben Counties, NY  

Federal Register 2010, 2011, 2012, 2013, 2014

...Docket No. APHIS-2012-0079] Golden Nematode; Removal of Regulated Areas in Livingston...interim rule that amended the golden nematode regulations by removing areas in Livingston...these two counties are free of golden nematode, and we determined that regulation...

2013-05-13

367

Experimental Crystallization of a High-K Arc Basalt: the Golden Pumice, Stromboli Volcano (Italy)  

E-print Network

Experimental Crystallization of a High-K Arc Basalt: the Golden Pumice, Stromboli Volcano (Italy ABSTRACT The near-liquidus crystallization of a high-K basalt (PST-9 golden pumice, 49·4 wt % SiO2, 1·85 wt pre- eruptive parameters refer to the storage region of golden pumice melts, which is located

Paris-Sud XI, Université de

368

Genetics and Implications of the Golden Color Morph in Green Sunfish  

Microsoft Academic Search

A color mutation of green sunfish (Lepomis cyanellus), resulting in whitish, golden-colored fish, was studied to determine the inheritance and ecological significance of this mutation. The offspring of six golden green sunfish were used in this study. The color trait is recessive and is believed to be caused by a genetically induced malfunction during melanoblast differentiation. The golden green sunfish

Rex A. Dunham; William F. Childers

1980-01-01

369

THE STATUS OF THE GOLDEN EAGLE (AQUILA CHRYSAETOS) IN POLAND  

Microsoft Academic Search

The Golden Eagle (Aquila chrysaetos) is a very rare breeding species in Poland and it is included in the Polish Red Data Book. At the end of twentieth century, only 30-35 pairs were nesting in the country. It has had protected species status for several decades and its nests have also been protected since 1984. All types of human disturbance

KRZYSZTOF WAC; TADEUSZ MIZERA

370

Dispersal of Golden Eagles Aquila chrysaetos in Scotland  

Microsoft Academic Search

Two nestling Golden Eagles Aquila chrysaetos were radio?tracked from fledging until the birds were unable to be located. In addition two other free flying young birds ? one juvenile and one sub?adult ? were opportunistically caught, radio?tagged and tracked. After fledging one nestling stayed in the home range for six months and then left, while the other stayed for four

J. R. Grant; M. J. McGrady

1999-01-01

371

RELATIONSHIP BETWEEN AUTONOMIC AND BEHAVIORAL THERMOREGULATION IN THE GOLDEN HAMSTER  

EPA Science Inventory

Preferred ambient temperature (Ta) of male golden hamsters (Mesocricitus auratus) was measured repeatedly by placing the animals in a temperature gradient for 80 min. A total of 180 observations were made during the last 20 min of treatment in the gradient. The mean preferred Ta ...

372

Portland Cement Concrete Pavement Shannon Golden, Alabama DOT  

E-print Network

Portland Cement Concrete Pavement Shannon Golden, Alabama DOT PORTLAND CEMENT CONCRETE PAVEMENT may be substituted for part of the required Portland cement. Substitution of mineral admixtures shall Cement shall not exceed the percentages shown in the following table: MAXIMUM ALLOWABLE SUBSTITUTION

373

Representing the Past by Solid Modeling + Golden Ratio Analysis  

ERIC Educational Resources Information Center

This paper describes the procedures of reconstructing ancient architecture using solid modeling with geometric analysis, especially the Golden Ratio analysis. In the past the recovery and reconstruction of ruins required bringing together fragments of evidence and vast amount of measurements from archaeological site. Although researchers and…

Ding, Suining

2008-01-01

374

Swimming performance and metabolism of cultured golden shiners  

Technology Transfer Automated Retrieval System (TEKTRAN)

The swimming ability and metabolism of golden shiners, Notemigonus crysoleucas, was examined using swim tunnel respirometery. The oxygen consumption and tail beat frequencies at various swimming speeds, an estimation of the standard metabolic rate, and the critical swimming speed (Ucrit) was determ...

375

Cumulative growth with fibonacci approach, golden section and physics  

Microsoft Academic Search

In this study, a physical quantity belonging to a physical system in its stages of orientation towards growth has been formulated using Fibonacci recurrence approximation. Fibonacci p-numbers emerging in this process have been expressed as a power law for the first time as far as we are aware. The golden sections ?p are related to the growth percent rates ?p.

F. Büyükkiliç; D. Demirhan

2009-01-01

376

Generalized golden sections, repeated bisections and aesthetic pleasure  

Microsoft Academic Search

We generalize the golden section in the sense that we partition a given line segment into a finite sequence of diminishing subsegments, in such a way that the ratio of any pair of adjacent subsegments equals the ratio of the whole and the first subsegment. When the number of subsegments increases, the partitioning approximates the subdivision of the line segment

Stan Lipovetsky; Freerk A. Lootsma

2000-01-01

377

27. Graffiti in north cells: 'When the golden sun has ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

27. Graffiti in north cells: 'When the golden sun has sunk beyond the desert horizon, and darkness followed, under a dim light casting my lonesome heart.'; 135mm lens with electronic flash illumination. - Tule Lake Project Jail, Post Mile 44.85, State Route 139, Newell, Modoc County, CA

378

2000 Golden Eagle Fact Sheet, Denali National Park and Preserve  

Microsoft Academic Search

Denali National Park and Preserve is one of the best places in the world to watch Golden Eagles (Aquila chrysaetos) and many other subarctic nesting raptors including Gyrfalcons (Falco rusticolus), Merlins (Falco columbarius) and Northern Harriers (Circus cyaneus). Eagles and other wildlife in Denali provide visitors and employees with wonderful opportunities to observe wild animals in their natural environment. The

Carol McIntyre

379

WINTERING OF LESSER GOLDEN-PLOVERS IN EASTERN NORTH AMERICA  

Microsoft Academic Search

Although said to winter entirely in southern South America, Lesser Golden- Plovers (Pluvialis dominica dominica) have been recorded in eastern North America in small numbers throughout the winter. A literature search indicates that records are regular through December, most of them probably of late fall migrants, and again increase in late February, probably of early spring migrants. There are at

DENNIS R. PAULSON; DAVID S. LEE

380

The Cultural-Historical Basis of the "Golden Key" Program  

ERIC Educational Resources Information Center

The "Golden Key" programme is a preschool education programme that is constructed on the basis of Vygotskij's cultural-historical theory. One of the most important aspects of this theory is not just the unity of intellect and affect, but the fact that the relationship between these two changes during the course of development. In infants, affect…

Kravtsov, Genady G.; Kravtsova, Elena E.

2011-01-01

381

The Golden Age of Academe: Myth or Memory?  

ERIC Educational Resources Information Center

Was there ever a golden age of academe: a time when academics were able to pursue their own interests, had relatively light and undemanding teaching responsibilities, and enjoyed widespread respect from both the general public and policy makers? This article explores that question, primarily in the context of the United Kingdom, but with some…

Tight, Malcolm

2010-01-01

382

Knemidocoptic Mange in Wild Golden Eagles, California, USA  

PubMed Central

During 2012–2013 in California, USA, 3 wild golden eagles were found with severe skin disease; 2 died. The cause was a rare mite, most closely related to Knemidocoptes derooi mites. Cautionary monitoring of eagle populations, habitats, and diseases is warranted. PMID:25271842

Stephenson, Nicole; Rogers, Krysta; Hawkins, Michelle G.; Sadar, Miranda; Guzman, David Sanchez-Migallon; Bell, Douglas A.; Smallwood, Kenneth S.; Wells, Amy; Shipman, Jessica; Foley, Janet

2014-01-01

383

GOLDEN RICE: DEVELOPMENTS IN ITS BIOTECHNOLOGY, SAFETY, AND NUTRITIONAL EVALUATION  

Technology Transfer Automated Retrieval System (TEKTRAN)

Golden Rice is a transgenic product that was developed to enable the synthesis of beta-carotene in rice grains. Beta-carotene is a yellow-orange carotenoid that can serve as a precursor for vitamin A. Vitamin A deficiency (VAD) is a significant nutritional concern, especially in developing countri...

384

Structural Transition of Gold Nanoclusters: From the Golden Cage to the Golden Pyramid  

SciTech Connect

How nanoclusters transform from one structural type to another as a function of size is a critical issue in cluster science. Here we report a study of the structural transition from the golden cage Au16- to the pyramidal Au20-. We obtained distinct experimental evidence that the cage-to-pyramid crossover occurs at Au18- , for which the cage and pyramidal isomers are nearly degenerate and coexist experimentally. The two isomers are observed and identified by their different interactions with O2 and Ar. The cage isomer is observed to be more reactive with O2 and can be preferentially "titrated" from the cluster beam, whereas the pyramidal isomer has slightly stronger interactions with Ar and is favored in the Au18Arx- van der Waals complexes. The current study allows the detailed structural evolution and growth routes from the hollow cage to the compact pyramid to be understood and provides information about the structure-function relationship of the Au18- cluster.

Huang, Wei; Bulusu, Satya; Pal, R.; Zeng, Xiao Cheng; Wang, Lai S.

2009-05-01

385

Squids, cuttlefish and octopuses  

Microsoft Academic Search

General biology of cephalopods is described. First, all commercially important cephalopods are classified and the general morphology and distribution of all major families is described in detail. Mating and spawning characteristics of all major families are discussed in detail. This is followed by a discussion on early life history, growth and principal ecoological changes that occur during the growth period.

T. Okutani

1990-01-01

386

Helminth fauna of a Japanese golden eagle, Aquila chrysaetos japonica.  

PubMed

A Japanese golden eagle, Aquila chrysaetos japonica, was found dead in Nagano Prefecture PB 399-8200, Japan, and subjected to necropsy. The necropsy revealed that the entire length of the intestine was filled with several masses of intestinal parasites. The recovered helminths were identified as one digenean trematode species, Neodiplostomum reflexum; two species of nematodes, Synhimantus sp. and larvae of Porrocaecum sp.; and a single species of Acanthocephala, Centrorhynchus sp. Digenea and acanthocephalans were found in massive numbers, obliterating the intestinal lumen, which suggests that the bird died as a result of the parasitic intestinal obstruction. The same type of helminths as those observed in this case was previously recorded in crested serpent eagles (Spilornis cheela perplexus) in Japan, but the present study emphasizes the presence of the four species in the Japanese golden eagle as a new host record. To the authors' knowledge, this is the first report of N. reflexum in Japan. PMID:23272374

El-Dakhly, Khaled; El-Nahass, El-Shaymaa; Sudo, Akiko; Uchida, Tadayoshi; Kakogawa, Masayoshi; Hirata, Akihiro; Sakai, Hiroki; Yanai, Tokuma

2012-12-01

387

A golden-silk spider spins its web  

NASA Technical Reports Server (NTRS)

On the grounds of Kennedy Space Center, a female Golden-Silk Spider repairs its web. The female can be identified by its brownish-green abdomen with a white spotted irregular pattern. The golden-silk spider repairs the webbing each day, replacing half but never the whole web at one time. Its web may measure two to three feet across. The center shares a boundary with the Merritt Island National Wildlife Refuge, a 92,000-acre refuge that is a habitat for more than 331 species of birds, 31 mammals, 117 fishes, and 65 amphibians and reptiles. The marshes and open water of the refuge provide wintering areas for 23 species of migratory waterfowl, as well as a year-round home for great blue herons, great egrets, wood storks, cormorants, brown pelicans and other species of marsh and shore birds, as well as a variety of insects.

1999-01-01

388

Golden Eagle Aquila chrysaetos breeding success and afforestation in Argyll  

Microsoft Academic Search

Breeding success (fledged young\\/pair) was recorded for 15 pairs of Golden Eagles in Argyll over 10 years 1980–89. The amount of young plantation forestry in the potential hunting ranges of the 15 pairs of eagles was measured. There was no significant relationship between the amount of forestry in each range in 1980 and mean breeding success over the period 1980–89.

J. Watson

1992-01-01

389

N-Dimension Golden Section Search: Its Variants and Limitations  

Microsoft Academic Search

One-dimension (1-D) golden section search (GSS) is widely used in many fields. This algorithm is very suitable for searching without derivative for the extrema of objective functions with unimodal. Two-dimension (2-D) GSS was also implemented and used for object tracking. In this paper, a structured n-dimension GSS and its variants are proposed. It has been shown that 1-D GSS is

Yen-Ching Chang

2009-01-01

390

Multicriteria optimization with a multiobjective golden section line search  

Microsoft Academic Search

This work presents an algorithm for multiobjective optimization that is structured as: (i) a descent direction is calculated,\\u000a within the cone of descent and feasible directions, and (ii) a multiobjective line search is conducted over such direction,\\u000a with a new multiobjective golden section segment partitioning scheme that directly finds line-constrained efficient points\\u000a that dominate the current one. This multiobjective line

Douglas A. G. Vieira; Ricardo H. C. Takahashi; Rodney R. Saldanha

391

Nick Sagan Reflects on Voyager 1 and the Golden Record  

NASA Astrophysics Data System (ADS)

When scientists confirmed on 12 September that NASA's Voyager 1 spacecraft had entered interstellar space (Eos, 94(39), 339, doi:10.1002/2013EO390003), the probe was acknowledged as the first human-made object to travel into that realm. The probe and its twin, Voyager 2, each carry a 12-inch gold-plated copper disk, known as the Golden Record.

Showstack, Randy

2013-10-01

392

Phase diagrams of the Harper map and the Golden Staircase  

NASA Astrophysics Data System (ADS)

We obtain the phase diagrams ?× E of the Harper map, for rational (irrational) magnetic flux. They show a finite (infinite) number of Arnol'd tongues representing gaps (localized phases) in the electronic spectrum and extended phases between them. For ?= {5-1 }/{2}, there is a Golden Staircase on the winding numbers and evidences of the existence of an infinite number of SNAs. [OUTP-00-07S

Castelo Ferreira, P.; Mancini, F. P.; Tragtenberg, M. H. R.

2002-04-01

393

Perception, Action, and Experience: Unraveling the Golden Braid  

ERIC Educational Resources Information Center

Much of our human mental life looks to involve a seamless unfolding of perception, action and experience: a golden braid in which each element twines intimately with the rest. We see the very world we act in and we act in the world we see. But more than this, visual experience presents us with the world in a way apt for the control and fine…

Clark, Andy

2009-01-01

394

Little Red Riding Hood Meets - A Golden Retriever?  

NSDL National Science Digital Library

In this lesson plan students will learn about how dogs evolved from wolves, and the similarities and differences between dogs and wolves. They will conduct some basic research on wolves and two dog breeds and fill in a chart to show what they have learned. Students will conclude by rewriting Little Red Riding Hood as if the main character had encountered a Maltese or a Golden Retriever instead of a wolf.

395

WINTER ECOLOGY OF THE ENDANGERED GOLDEN-CHEEKED WARBLER  

Microsoft Academic Search

We studied the ecology of the Golden-cheeked Warbler (Dendroica chryso- paria) during three winter seasons, 1995-1998, in Honduras, Guatemala, and Mexico. In- dividuals of this species occurred almost exclusively as members of mixed-species flocks, occupying sites with greater densities of encino oak and ground cover and fewer pines than random sites. Most foraging observations were recorded in mid-story, encino oak.

JOHN H. RAPPOLE; DAVID I. KING; WYLIE C. BARROW JR

396

Development of Taenia pisiformis in golden hamster (Mesocricetus auratus)  

PubMed Central

The life cycle of Taenia pisiformis includes canines as definitive hosts and rabbits as intermediate hosts. Golden hamster (Mesocricetus auratus) is a rodent that has been successfully used as experimental model of Taenia solium taeniosis. In the present study we describe the course of T. pisiformis infection in experimentally infected golden hamsters. Ten females, treated with methyl-prednisolone acetate were infected with three T. pisiformis cysticerci each one excised from one rabbit. Proglottids released in faeces and adults recovered during necropsy showed that all animals were infected. Eggs obtained from the hamsters' tapeworms, were assessed for viability using trypan blue or propidium iodide stains. Afterwards, some rabbits were inoculated with eggs, necropsy was performed after seven weeks and viable cysticerci were obtained. Our results demonstrate that the experimental model of adult Taenia pisiformis in golden hamster can replace the use of canines in order to study this parasite and to provide eggs and adult tapeworms to be used in different types of experiments. PMID:21787386

2011-01-01

397

Complete migration cycle of golden eagles breeding in northern Quebec  

USGS Publications Warehouse

Radio tracking via satellite was initiated to study the year-round movements of Golden Eagles(Aquila chrysaetosc anadensis) breeding on the east coast of Hudson Bay, Quebec. In June and August 1992, six Golden Eagles(five adults and one juvenile) were marked, three of which completed their year-round movements. The eagles left their breeding area in mid- to late October and migrated to known wintering areas in the eastern United States. They used different routes but each followed the same general path during fall and spring migrations which lasted between 26 and 40 days,and 25 and 51 days, respectively. Eagles wintered from 93 to 135 days in areas located 1,650 to 3,000 km south of their breeding territory. In spring 1993, satellite telemetry located the eagles in their former breeding territory in late March, mid-April and early May. This study confirms previous suggestion that some breeding Golden Eagles wintering in eastern United States come from northern Quebec and describes the first successful tracking of the complete yearly migration cycle of a bird of prey.

Brodeur, Serge; DeCarie, R.; Bird, D.M.; Fuller, Mark R.

1996-01-01

398

Golden Beam Data for Proton Pencil Beam Scanning  

PubMed Central

Proton, as well as other ion, beams applied by electro-magnetic deflection in pencil-beam scanning (PBS) are minimally perturbed and thus can be quantified a-priori by their fundamental interactions in medium. This a-priori quantification permits an optimal reduction of characterizing measurements on a particular PBS delivery system. The combination of a-priori quantification and measurements will then suffice to fully describe the physical interactions necessary for treatment planning purposes. We consider, for proton beams, these interactions and derive a “Golden” beam data set. The Golden beam data set quantifies the pristine Bragg peak depth dose distribution in terms of primary, multiple Coulomb scatter, and secondary, nuclear scatter, components. The set reduces the required measurements on a PBS delivery system to the measurement of energy spread and initial phase space as a function of energy. The depth doses are described in absolute units of Gy(RBE).mm2.Gp?1, where Gp equals 109 (giga) protons, thus providing a direct mapping from treatment planning parameters to integrated beam current. We used this Golden beam data on our PBS delivery systems and demonstrate that it yields absolute dosimetry well within clinical tolerance. PMID:22330090

Clasie, Benjamin; Depauw, Nicolas; Fransen, Maurice; Gomà, Carles; Panahandeh, Hamid Reza; Seco, Joao; Flanz, Jacob B; Kooy, Hanne M

2012-01-01

399

Habitat Selection and Movement Patterns of California Golden Trout in Degraded and Recovering Stream Sections in the Golden Trout Wilderness, California  

Microsoft Academic Search

I used radio transmitters to determine habitat selection and movement patterns of California golden trout Oncorhynchus mykiss aguabonita in two areas defined by their different levels of habitat recovery in the Golden Trout Wilderness, California. Study areas were differ- entiated by the amount of streamside vegetation (low or high coverage of beaked sedge Carex rostrata). Lower amounts of streamside vegetation

KATHLEEN R. MATTHEWS

1996-01-01

400

Habitat Selection and Movement Patterns of California Golden Trout in Degraded and Recovering Stream Sections in the Golden Trout Wilderness, California  

Microsoft Academic Search

I used radio transmitters to determine habitat selection and movement patterns of California golden trout Oncorhynchus mykiss aguabonita in two areas defined by their different levels of habitat recovery in the Golden Trout Wilderness, California. Study areas were differentiated by the amount of streamside vegetation (low or high coverage of beaked sedge Carex rostrata). Lower amounts of streamside vegetation were

Kathleen R. Matthews

1996-01-01

401

Physico-chemical studies of micelle formation on sepia cartilage collagen solutions in acetate buffer and its interaction with ionic and nonionic micelles. Hydrodynamic and thermodynamic studies.  

PubMed

Sepia cartilage collagen (pepsin-extracted) in acetate buffer (pH = 2.98) forms micelles at a particular concentration below which they do not normally form. The critical micelle concentration (cmc) of the collagen was determined in buffer as well as in SDS, cetyltrimethylammonium bromide (CTAB) and Tween-80 micellar environments at different temperatures. Mutual interaction of collagen micelles with the ionic and nonionic micelles through the formation of the mixed micelle concept has also been found. The cmc of collagen decreased in the presence of SDS and Tween-80 micelles whereas it increased in the presence of CTAB micelles. This clearly suggests that the micelle formation of collagen is facilitated by the presence of SDS and Tween-80 and hindered by CTAB micelles. The various thermodynamic parameters were estimated from viscosity measurements and the transfer of collagen into the micelles of various surfactants and the reverse phenomenon was analyzed. This analysis has also been modelled conceptually as a different phase and the results have supported the above phenomenon. Our thermodynamic results are also able to predict the exact denaturation temperature as well as the structural order of water in the collagen in various environments. The hydrated volumes, Vh, of collagen in the above environments and intrinsic viscosity were also calculated. The low intrinsic viscosity, [eta], of collagen in an SDS environment compared to buffer and other surfactant environments suggested more workable systems in cosmetic and dermatological skin care preparations. The one and two-hydrogen-bonded models of this collagen in various environments have been analyzed. The calculated thermodynamic parameters varied with the concentration of collagen. The change of thermodynamic parameters from coil-coil to random-coil conformation upon denaturation of collagen were calculated from the amount of proline and hydroxyproline residues and compared with viscometric results. Thermodynamic results suggest that the stability of the collagen in the additive environments is in the following order: SDS greater than Tween-80 greater than buffer greater than CTAB. PMID:3691510

Mandal, A B; Ramesh, D V; Dhar, S C

1987-12-15

402

Lead poisoning and heavy metal exposure of golden eagles ( Aquila chrysaetos ) from the European Alps  

Microsoft Academic Search

Lead poisoning and organ levels of the non-essential heavy metals lead, cadmium and mercury of seven free-ranging golden eagles\\u000a (Aquila chrysaetos) from the European Alps, and of one 23-year-old captive golden eagle are reported. All birds were found dead or moribund\\u000a during the years 2000 and 2001 in Austria, Germany and Switzerland. One golden eagle from Switzerland with extraordinarily\\u000a high

Norbert Kenntner; Yvon Crettenand; Hans-Joachim Fünfstück; Martin Janovsky; Frieda Tataruch

2007-01-01

403

The Use of the Golden Section in the Great Mosque at Kairouan  

Microsoft Academic Search

.  The geometrical analysis conducted reveals very clearly a consistent application of the golden section. The geometric technique\\u000a of construction of the golden section seems to have determined the major decisions of the spatial organisation. The golden\\u000a section appears repeatedly in some part of the building measurements. It is found in the overall proportion of the plan and\\u000a in the dimensioning

Kenza Boussora; Said Mazouz

2004-01-01

404

Array-based genotyping and expression analysis of barley cv. Maythorpe and Golden Promise  

Microsoft Academic Search

BACKGROUND: Golden Promise is a salt-tolerant spring barley closely related to Maythorpe. Salt tolerance in Golden Promise has been attributed to a single mutation at the Ari-e locus (on 5H) resulting from irradiation of Maythorpe. Golden Promise accumulates lower shoot Na+ compared to Maythorpe when growing under saline conditions. This study focused on elucidating the genetic basis and mechanisms involved

Harkamal Walia; Clyde Wilson; Pascal Condamine; Abdelbagi M Ismail; Jin Xu; Xinping Cui; Timothy J Close

2007-01-01

405

Effect of sediment settling on controlling golden mussel invasion in water transfer project  

NASA Astrophysics Data System (ADS)

Inter-basin water transfer projects have been widely used to solve uneven distribution of water resources and water shortage in China. Along with the transferring of water resources, golden mussel (Limnoperna fortunei), the filter-collector macro-invertebrate species originating from southern China has also been inadvertently transferred to new aquatic environment, resulting in quick and uncontrolled spread of the species. The golden mussels are invasive by nature and endowed with a strong byssus for attaching onto their habitat, allowing them to easily invade natural and artificial aquatic systems, which was resulted in high-density golden mussel attachment that causes serious bio-fouling. Invasion and bio-fouling by golden mussels in water transfer systems has drawn attention widely because it has resulted in high resistance to water flow, corrosion of pipe walls and even clogging of tunnels, as well as causing water pollution and ecological imbalance in the regions that receive water infested with golden mussels. Field investigation was conducted along the East River, which is the main drinking water resource for Cantong province and Hongkong, China, to study the natural habitats of golden mussels. Surveys of water transfer tunnels which carry water from the East River to several big cities in Cantong province were done to study golden mussel invasion and attachment in tunnels. It is found that in the natural habitat, golden mussels mainly attach to bedrock and bank stones and solid surfaces facing upstream, while no golden mussels are attached on the surfaces facing downstream and suffering sediment deposition. In the water transfer tunnels, golden mussel attachment densities of 40,000 individuals/m2 mainly occurred on the portion of tunnel walls which face downwards and thus avoid sedimentation. An experiment was designed to study the effect of sediment settling on golden mussel attachment. The results showed that settling of fine sediment particles affects golden mussels by preventing them from filtering food and oxygen from water, and in this way killing them. The attachment density decreased with increased sediment deposition. Golden mussel density decreased by about 70-90% when the sedimentation rate increased by 3-6 times. Therefore, spraying with fine sediment or creating hyper-concentration of sediment water to treat golden mussels before they enter tunnels is recommended as an effective strategy for controlling golden mussel invasion and high-density bio-fouling. Key words: golden mussel invasion; bio-fouling; sediment settling; habitat; controlling strategy

Xu, Mengzhen; Wang, Zhaoyin; Bogen, Jim; Pan, Baozhu

2013-04-01

406

Modified evisceration technique in a golden eagle (Aquila chrysaetos).  

PubMed

Two different modified techniques have been described for enucleation in raptors, including the transaural approach and the globe-collapsing procedure. This case report describes an alternative, modified evisceration procedure in a mature female Golden Eagle (Aquila chrysaetos). The advantages of this procedure are decreased anesthetic time, ease of procedure, decreased risk of excessive traction of the optic nerve, decreased intraoperative orbital trauma, and preservation of the natural symmetry of the head. The major disadvantage of this procedure is that it does not allow complete histologic examination of the globe. Patients with intraocular infection or neoplasia, or significant orbital disease may be poor candidates for this technique. PMID:21929613

Dees, D Dustin; Knollinger, Amy M; MacLaren, Nicole E

2011-09-01

407

Topographic map of Golden Gate Estates, Collier County, Florida  

USGS Publications Warehouse

Construction of canals related to land development in the Golden Gate Estates area of Collier County, Fla., has altered the natural drainage pattern of the watershed. The area of approximately 300 square miles was topographically mapped with a contour interval of 0.5 foot to assist in determining the effects of canal construction on the surface-water and ground-water resources in the watershed. The topographic map was prepared at a scale of 1:48,000 using aerial photography and ground-control points. (USGS)

Jurado, Antonio

1981-01-01

408

Detection of Golden apples' climacteric peak by laser biospeckle measurements.  

PubMed

In this paper, we report a study in which a laser biospeckle technique is used to detect the climacteric peak indicating the optimal ripeness of fruits. We monitor two batches of harvested Golden apples going through the ripening phase in low- and room-temperature environments, determine speckle parameters, and measure the emitted ethylene concentration using gas chromatography as reference method. Speckle results are then correlated to the emitted ethylene concentration by a principal component analysis. From a practical point of view, this approach allows us to validate biospeckle as a noninvasive and alternative method to respiration rate and ethylene production for climacteric peak detection as a ripening index. PMID:25608070

Nassif, Rana; Nader, Christelle Abou; Afif, Charbel; Pellen, Fabrice; Le Brun, Guy; Le Jeune, Bernard; Abboud, Marie

2014-12-10

409

The normal electrocardiogram of conscious golden eagles (Aquila chrysaetos).  

PubMed

The aim of this study was to describe the normal electrocardiographic patterns and values in conscious golden eagles (Aquila chrysaetos). The standard bipolar and augmented unipolar limb leads' electrocardiograms were recorded in the golden eagles. The waveforms were analyzed in all leads at 50 mm/sec and at 10 mm = 1 mV to determine P, PR (segment and interval), QRS, ST, and QT durations and P, net QRS complex, and T amplitudes. The polarity of each waveform was tabulated in all leads. The mean electrical axis for the frontal plane was calculated using standard bipolar leads II and III. The mean heart rate was 346.7 +/- 14.29 beats/min. The P wave was predominantly positive in standard bipolar leads I and II and augmented unipolar limb leads aVL and aVF. The dominant pattern ofwaveforms of the QRS complexes were QS in leads I, II, III, and aVF, whereas in leads aVR and aVL, the pattern was always R. The T wave was slightly positive in leads I, II, and aVF. The average value of the heart mean electrical axis was -85.9 +/- 7.50 degrees. Establishment of normal electrocardiogram values will facilitate a better understanding of electrocardiographic changes seen in many avian diseases. PMID:20945639

Hassanpour, Hossein; Moghaddam, Abdol Karim Zamani; Bashi, Mehdi Cheraghchi

2010-09-01

410

Golden triangle for folding rates of globular proteins.  

PubMed

The ability of protein chains to spontaneously form their spatial structures is a long-standing puzzle in molecular biology. Experimentally measured rates of spontaneous folding of single-domain globular proteins range from microseconds to hours: the difference (11 orders of magnitude) is akin to the difference between the life span of a mosquito and the age of the universe. Here, we show that physical theory with biological constraints outlines a "golden triangle" limiting the possible range of folding rates for single-domain globular proteins of various size and stability, and that the experimentally measured folding rates fall within this narrow triangle built without any adjustable parameters, filling it almost completely. In addition, the golden triangle predicts the maximal size of protein domains that fold under solely thermodynamic (rather than kinetic) control. It also predicts the maximal allowed size of the "foldable" protein domains, and the size of domains found in known protein structures is in a good agreement with this limit. PMID:23251035

Garbuzynskiy, Sergiy O; Ivankov, Dmitry N; Bogatyreva, Natalya S; Finkelstein, Alexei V

2013-01-01

411

Time-place learning in golden shiners (Pisces: Cyprinidae).  

PubMed

The goal of this study was to determine whether fish can learn to forage in different places at different times of the day, each place being associated with a specific time. Groups of eight golden shiners (Notemigonus crysoleucas) were kept in aquaria equipped with automatic feeders that dropped food on one side in the morning and on the other side in the afternoon, or on one side in the morning, the other side at midday, and back on the first side in the evening. After 3-4 weeks, food was withheld and the position of the fish within the aquaria was noted at 5-min intervals throughout the day. Consistent with time-place learning, most fish were on the correct side at the correct time. However, another experiment with three places instead of two provided only equivocal evidence of time-place learning; this could reflect the fact that, in the lakes they inhabit, golden shiners may need only distinguish between two places: open waters and littoral. Experiments with phase-shifts of the photoperiod showed that temporal discrimination is based on a circadian clock that can be gradually phase-advanced by 6 h in about 3 days. PMID:24896874

Reebs, S G

1996-06-01

412

Gene pool variability of a golden eagle ( Aquila chrysaetos) population from the Swiss Alps  

Microsoft Academic Search

Numbers of golden eagles (Aquila chrysaetos) were severely reduced by hunting towards the end of the last century over large parts of central Europe. To estimate the genetic variation in a currently thriving golden eagle population from the Swiss Alps, organ samples of 15 carcasses, collected during 1975–1993, were used for electrophoretic analysis of 31 isozyme systems encoding for 37

Franz Suchentrunk; Heinrich Haller; Peider Ratti

1999-01-01

413

Unexpected role of ungulate carcasses in the diet of Golden Eagles Aquila chrysaetos in Mediterranean mountains  

Microsoft Academic Search

Capsule Golden Eagles consumed more carrion than shown by traditional analyses.Aims To determine whether the traditional methods for diet determination in avian predators are subject to biases in relation to the consumption of carrion.Methods The consumption by Golden Eagles of ungulate carcasses supplied through sport hunting in a typical Mediterranean area of southeast Spain was monitored by camera trapping through

Sergio Eguía; Miguel Blázquez; Marcos Moleón; Francisco Botella

2010-01-01

414

IMPROVING PREDICTION OF GOLDEN EAGLE (AQUILA CHRYSAETOS) RANGING IN WESTERN SCOTLAND USING GIS AND TERRAIN MODELING  

Microsoft Academic Search

A current model for predicting range use of Golden Eagles (Aquila chrysaetos) in western Scotland is derived from observed ranging behavior, a central point, and elevation. An improvement to this model is described that incorporates terrain tatures. Ridges are modeled as an assumed surrogate for deflected updrafts of air currents. Golden Eagles preferred areas close to ridges and close to

DAVID R. A. MCLEOD; D. PHILIP WHITFIELD; MICHAEL J. McGRADY

2002-01-01

415

First Breeding Attempt of Golden Eagle (Aquila chrysaetos L.) in Lithuania  

Microsoft Academic Search

Golden Eagle is treated as extinct species in Lithuania, though the birds are regularly observed in suitable habitats in various places of Lithuania during migration and even during the breeding season. Nevertheless, there has been no reliable data on the breeding of this species since 1843. In 2004, Golden Eagle was recorded attached (foraging and displaying) to one territory in

Rimgaudas Treinys

2006-01-01

416

All that glitters: a review of psychological research on the aesthetics of the golden section  

Microsoft Academic Search

Since at least the time of the Ancient Greeks, scholars have argued about whether the golden section -- a number approximately equal to 0.618 -- holds the key to the secret of beauty. Empirical investigations of the aesthetic properties of the golden section date back to the very origins of scientific psychology itself, the first studies being conducted by Fechner

Christopher D. Green

1995-01-01

417

Nest predation and numbers of Golden Plovers Pluvialis apricaria and other moorland waders  

Microsoft Academic Search

The recovery of a declining population of Golden Plovers may have been prevented by high nest predation from Carrion Crows Corvus corone and Common Gulls Larus canus. In order to test this hypothesis predators were experimentally removed from Kerloch moor in NE Scotland during 1986–89. Although the numbers of crows and gulls were significantly reduced, no young Golden Plover hatched

R. Parr

1993-01-01

418

Homology of Serum Proteins of Golden Shiner (Notemigonus crysoleucas) and Man  

Microsoft Academic Search

Comparing properties of electrophoretically-separated proteins of the golden shiner with those of man permitted an evaluation of the suitability of traditional terminology for naming the proteins of fishes. Collectively, electrophoretic mobility, percentage composition, solubility properties, and distribution of lipoproteins of six golden shiner serum proteins differed sufficiently from the classical definitions of serum proteins to prevent homologizing the proteins of

Robert C. Summerfelt

1966-01-01

419

Has the Golden Rule of Public Finance Made a Difference in the UK ?  

E-print Network

Has the Golden Rule of Public Finance Made a Difference in the UK ? N° 2007-13 Avril 2007 Jérôme THE GOLDEN RULE OF PUBLIC FINANCE MADE A DIFFERENCE IN THE UK? Jérôme CREEL (OFCE) Paola MONPERRUS rule of public finance. We extend the existing literature by estimating a model of the British economy

Boyer, Edmond

420

Effects of loading density on golden shiner survival during and after hauling  

Technology Transfer Automated Retrieval System (TEKTRAN)

Four hauling trips of approximately 6 h each were conducted to investigate effects of loading density on survival of golden shiners Notemigonus crysoleucas. Commercially graded golden shiners (mean weight 3.3 g ± 0.04 SE) were transported at densities of 120, 180, and 240 g fish/L in insulated hauli...

421

Effects of Loading Density on Golden Shiner Survival During and After Hauling  

Technology Transfer Automated Retrieval System (TEKTRAN)

Four hauling trips of approximately 6 h each were conducted to investigate effects of loading density on survival of golden shiners Notemigonus crysoleucas. Commercially graded golden shiners (mean weight 3.3 g +/- 0.04 SE) were transported at densities of 120, 180, and 240 g fish/L in insulated hau...

422

Growing Older in Fort Collins Silver Tsunami as a Golden Opportunity  

E-print Network

Growing Older in Fort Collins ­ Silver Tsunami as a Golden Opportunity S ummary Report? 8 Is Fort Collins Ready? 9 Documents from March 1 Event. 10 Event 3 of the "Growing Older in Fort Collins: Silver Tsunami as Golden Opportunity" project, a collaborative effort

423

7 CFR 51.753 - U.S. No. 1 Golden.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 2013-01-01 false U.S. No. 1 Golden. 51.753 Section 51.753 Agriculture Regulations of the Department...Grapefruit Grades § 51.753 U.S. No. 1 Golden. The requirements for this grade are the...

2013-01-01

424

7 CFR 51.753 - U.S. No. 1 Golden.  

Code of Federal Regulations, 2014 CFR

...2014-01-01 2014-01-01 false U.S. No. 1 Golden. 51.753 Section 51.753 Agriculture Regulations of the Department...Grapefruit Grades § 51.753 U.S. No. 1 Golden. The requirements for this grade are the...

2014-01-01

425

The Generalized Principle of the Golden Section and its applications in mathematics, science, and engineering  

Microsoft Academic Search

The “Dichotomy Principle” and the classical “Golden Section Principle” are two of the most important principles of Nature, Science and also Art. The Generalized Principle of the Golden Section that follows from studying the diagonal sums of the Pascal triangle is a sweeping generalization of these important principles. This underlies the foundation of “Harmony Mathematics”, a new proposed mathematical direction.

A. P. Stakhov

2005-01-01

426

Reliable Group Communication in an Ad Hoc Network Lawrence Klos Golden G. Richard III  

E-print Network

Reliable Group Communication in an Ad Hoc Network Lawrence Klos Golden G. Richard III {lklos, golden}@cs.uno.edu Department of Computer Science University of New Orleans New Orleans, LA 70148 to coordinate the remaining two responsibilities of message storage and retransmission. Section 2 presents

Richard III, Golden G.

427

7 CFR 51.1144 - U.S. No. 1 Golden.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 2011-01-01 false U.S. No. 1 Golden. 51.1144 Section 51.1144 Agriculture Regulations of the Department...Tangelos Grades § 51.1144 U.S. No. 1 Golden. The requirements for this grade are...

2011-01-01

428

POSITIVE COMMUTATORS, FERMI GOLDEN RULE AND THE SPECTRUM OF ZERO TEMPERATURE PAULIFIERZ  

E-print Network

POSITIVE COMMUTATORS, FERMI GOLDEN RULE AND THE SPECTRUM OF ZERO TEMPERATURE PAULI system for small coupling constants. Under the hypothesis of Fermi golden rule, we show that the embedded â?? ENIA where #(k) = |k|, see Section 2.1. This is a massless and zero temperature system. The free

429

7 CFR 51.1813 - U.S. No. 1 Golden.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 2011-01-01 false U.S. No. 1 Golden. 51.1813 Section 51.1813 Agriculture Regulations of the Department...Tangerines Grades § 51.1813 U.S. No. 1 Golden. The requirements for this grade are the...

2011-01-01

430

7 CFR 51.1144 - U.S. No. 1 Golden.  

Code of Federal Regulations, 2014 CFR

...2014-01-01 2014-01-01 false U.S. No. 1 Golden. 51.1144 Section 51.1144 Agriculture Regulations of the Department...Tangelos Grades § 51.1144 U.S. No. 1 Golden. The requirements for this grade are...

2014-01-01

431

7 CFR 51.1813 - U.S. No. 1 Golden.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 2012-01-01 false U.S. No. 1 Golden. 51.1813 Section 51.1813 Agriculture Regulations of the Department...Tangerines Grades § 51.1813 U.S. No. 1 Golden. The requirements for this grade are the...

2012-01-01

432

Parameter Optimization for NC Machine Tool Based on Golden Section Search Driven PSO  

Microsoft Academic Search

We have proposed a modified PSO; GPSO (golden-section-search driven particle swarm optimization) which updates only one particle in a generation based on a strategy: golden section search and steepest descent method. It was proved to be effect in various optimization problem. In this paper, first, this GPSO is revised to make clear its effectiveness. Then, the GPSO is utilized to

Sehoon Oh; Yoichi Hori

2007-01-01

433

7 CFR 51.1813 - U.S. No. 1 Golden.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 2013-01-01 false U.S. No. 1 Golden. 51.1813 Section 51.1813 Agriculture Regulations of the Department...Tangerines Grades § 51.1813 U.S. No. 1 Golden. The requirements for this grade are the...

2013-01-01

434

7 CFR 51.1813 - U.S. No. 1 Golden.  

Code of Federal Regulations, 2014 CFR

...2014-01-01 2014-01-01 false U.S. No. 1 Golden. 51.1813 Section 51.1813 Agriculture Regulations of the Department...Tangerines Grades § 51.1813 U.S. No. 1 Golden. The requirements for this grade are the...

2014-01-01

435

7 CFR 51.1144 - U.S. No. 1 Golden.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 2013-01-01 false U.S. No. 1 Golden. 51.1144 Section 51.1144 Agriculture Regulations of the Department...Tangelos Grades § 51.1144 U.S. No. 1 Golden. The requirements for this grade are...

2013-01-01

436

7 CFR 51.753 - U.S. No. 1 Golden.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 2011-01-01 false U.S. No. 1 Golden. 51.753 Section 51.753 Agriculture Regulations of the Department...Grapefruit Grades § 51.753 U.S. No. 1 Golden. The requirements for this grade are the...

2011-01-01

437

7 CFR 51.753 - U.S. No. 1 Golden.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 2010-01-01 false U.S. No. 1 Golden. 51.753 Section 51.753 Agriculture Regulations of the Department...Grapefruit Grades § 51.753 U.S. No. 1 Golden. The requirements for this grade are the...

2010-01-01

438

7 CFR 51.753 - U.S. No. 1 Golden.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 2012-01-01 false U.S. No. 1 Golden. 51.753 Section 51.753 Agriculture Regulations of the Department...Grapefruit Grades § 51.753 U.S. No. 1 Golden. The requirements for this grade are the...

2012-01-01

439

7 CFR 51.1144 - U.S. No. 1 Golden.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 2012-01-01 false U.S. No. 1 Golden. 51.1144 Section 51.1144 Agriculture Regulations of the Department...Tangelos Grades § 51.1144 U.S. No. 1 Golden. The requirements for this grade are...

2012-01-01

440

CORTISOL RESPONSES OF GOLDEN SHINER (NOTEMIGONUS CRYSOLEUCAS) FED DIETS DIFFERING IN LIPID CONTENT  

Technology Transfer Automated Retrieval System (TEKTRAN)

The purpose of this study was to characterize the plasma cortisol response in golden shiners under crowding stress, and to determine whether dietary lipid composition affects the cortisol response. In experiment 1, triplicate groups of golden shiners were fed diets with 4 or 13% menhaden fish oil, ...

441

Medea, Jason, and their illusions of the Golden Fleece: a Jungian contribution to transference dreaming  

Microsoft Academic Search

Intense projections of love and power regularly occur in the transference relationship. They often objectify archetypal aspects that a client might be struggling to understand. The tale of the Golden Fleece, which stands as a symbol for an inappropriately overvalued attachment, reveals that Jason and Medea were too captivated by their own desires, which they projected onto the Golden Fleece.

Robert Tyminski

2011-01-01

442

Two strategies for coping with food shortage in desert golden spiny mice  

Microsoft Academic Search

Desert rodents face periods of food shortage and use different strategies for coping with it, including changes in activity level. Golden spiny mice (Acomys russatus) inhabit rock crevasses and do not dig burrows nor store food. When kept under 50% food restriction most, but not all, golden spiny mice defend their body mass by physiological means. We tested the hypothesis

Roee Gutman; Dotan Yosha; Itzhak Choshniak; Noga Kronfeld-Schor

2007-01-01

443

The status of the Golden Jackal (Canis aureus L.) in Greece  

Microsoft Academic Search

Broadcasted jackal howls were used to survey the status of the golden jackal in Greece. All sites with recent indication of jackal presence were surveyed at selected calling stations, and minimum population estimates were recorded. The results of the survey show that both populations and distribution area of the golden jackal in Greece have been declining steadily during the last

Giorgos Giannatos; Yiannis Marinos; Panagiota Maragou; Giorgos Catsadorakis

2005-01-01

444

75 FR 68354 - Golden Valley Wind Park, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Commission [Docket No. ER11-1882-000] Golden Valley Wind Park, LLC; Supplemental...Rate Filing Includes Request for Blanket Section 204 Authorization October 28, 2010...in the above-referenced proceeding of Golden Valley Wind Park, LLC's...

2010-11-05

445

78 FR 77194 - Golden Elephant Glass Technology, Inc., and Pacific Alliance Corp.; Order of Suspension of Trading  

Federal Register 2010, 2011, 2012, 2013, 2014

...SECURITIES AND EXCHANGE COMMISSION [File No. 500-1] Golden Elephant Glass Technology, Inc., and Pacific Alliance Corp.; Order...and accurate information concerning the securities of Golden Elephant Glass Technology, Inc. because it has not filed any...

2013-12-20

446

Improving the nutritional value of Golden Rice through increased pro-vitamin A content.  

PubMed

"Golden Rice" is a variety of rice engineered to produce beta-carotene (pro-vitamin A) to help combat vitamin A deficiency, and it has been predicted that its contribution to alleviating vitamin A deficiency would be substantially improved through even higher beta-carotene content. We hypothesized that the daffodil gene encoding phytoene synthase (psy), one of the two genes used to develop Golden Rice, was the limiting step in beta-carotene accumulation. Through systematic testing of other plant psys, we identified a psy from maize that substantially increased carotenoid accumulation in a model plant system. We went on to develop "Golden Rice 2" introducing this psy in combination with the Erwinia uredovora carotene desaturase (crtI) used to generate the original Golden Rice. We observed an increase in total carotenoids of up to 23-fold (maximum 37 microg/g) compared to the original Golden Rice and a preferential accumulation of beta-carotene. PMID:15793573

Paine, Jacqueline A; Shipton, Catherine A; Chaggar, Sunandha; Howells, Rhian M; Kennedy, Mike J; Vernon, Gareth; Wright, Susan Y; Hinchliffe, Edward; Adams, Jessica L; Silverstone, Aron L; Drake, Rachel

2005-04-01

447

50 CFR 22.31 - Golden eagle depredations control order on request of Governor of a State.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 2010-10-01 false Golden eagle depredations control...Governor of a State. 22.31 Section 22.31 Wildlife and Fisheries...Depredation Control Orders on Golden Eagles § 22.31 Golden eagle depredations...

2010-10-01

448

50 CFR 22.31 - Golden eagle depredations control order on request of Governor of a State.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Golden eagle depredations control...Governor of a State. 22.31 Section 22.31 Wildlife and Fisheries...Depredation Control Orders on Golden Eagles § 22.31 Golden eagle depredations...

2013-10-01

449

50 CFR 22.31 - Golden eagle depredations control order on request of Governor of a State.  

Code of Federal Regulations, 2012 CFR

...2012-10-01 2012-10-01 false Golden eagle depredations control...Governor of a State. 22.31 Section 22.31 Wildlife and Fisheries...Depredation Control Orders on Golden Eagles § 22.31 Golden eagle depredations...

2012-10-01

450

50 CFR 22.31 - Golden eagle depredations control order on request of Governor of a State.  

Code of Federal Regulations, 2011 CFR

...2011-10-01 2011-10-01 false Golden eagle depredations control...Governor of a State. 22.31 Section 22.31 Wildlife and Fisheries...Depredation Control Orders on Golden Eagles § 22.31 Golden eagle depredations...

2011-10-01

451

An SU (5) ×A5 golden ratio flavour model  

NASA Astrophysics Data System (ADS)

In this paper we study an SU (5) ×A5 flavour model which exhibits a neutrino mass sum rule and golden ratio mixing in the neutrino sector which is corrected from the charged lepton Yukawa couplings. We give the full renormalisable superpotential for the model which breaks SU(5) and A5 after integrating out heavy messenger fields and minimising the scalar potential. The mass sum rule allows for both mass orderings but we will show that inverted ordering is not valid in this setup. For normal ordering we find the lightest neutrino to have a mass of about 10-50 meV, and all leptonic mixing angles in agreement with experiment.

Gehrlein, Julia; Oppermann, Jens P.; Schäfer, Daniela; Spinrath, Martin

2015-01-01

452

Shifting foundations and metrics for golden-cheeked warbler recovery  

USGS Publications Warehouse

Using the golden-cheeked warbler (Setophaga chrysoparia) as a case study, this paper discusses what lessons can be learned from the process of the emergency listing and subsequent development of the recovery plan. Are the metrics for recovery in the current warbler plan appropriate, including population size and distribution (recovery units), migration corridors, and wintering habitat? In other words, what happened, what can we learn, and what should happen (in general) in the future for development of such plans? We discuss the number of recovery units required for species persistence and estimate the number of male warblers in protected areas across the breeding range of the species, using newly published density estimates. We also discuss future monitoring strategies to estimate warbler population trends and dispersal rates.

Hatfield, Jeff S.; Weckerly, Floyd W.; Duarte, Adam

2012-01-01

453

A golden-silk spider spins its web  

NASA Technical Reports Server (NTRS)

On the grounds of Kennedy Space Center, a female Golden-Silk Spider repairs its web. During the day spider hands head downward from the underside of the web near the center. Its web may measure two to three feet across and it repairs the webbing each day, replacing half but never the whole web at one time. The center shares a boundary with the Merritt Island National Wildlife Refuge, a 92,000-acre refuge that is a habitat for more than 331 species of birds, 31 mammals, 117 fishes, and 65 amphibians and reptiles. The marshes and open water of the refuge provide wintering areas for 23 species of migratory waterfowl, as well as a year-round home for great blue herons, great egrets, wood storks, cormorants, brown pelicans and other species of marsh and shore birds, as well as a variety of insects.

1999-01-01

454

Pterygodermatites nycticebi (Nematoda: spirurida) in golden lion tamarins.  

PubMed

Pterygodermatites nycticebi (syn Rictularia nycticebi), a spirurid nematode first described in the slow loris (Nycticebus coucang), recently has been associated with morbidity and mortality in the golden lion tamarin (Leontopithecus rosalia rosalia) collection at the National Zoological Park. Adult worms were found in the lumen of the small intestine with their anterior ends embedded in the mucosa. Larvae, when present, were deeper in the submucosa. A few heavily infected animals developed profound weakness, anemia, and hypoproteinemia. Infective larvae of Pterygodermatites nycticebi developed in laboratory-reared German cockroaches (Blatella germanica) that were fed tamarin feces containing eggs of Pterygodermatites nycticebi. Wild-caught German cockroaches also were found to harbor these infective larvae which implicates this ubiquitous pest as an intermediate host. Effective control of Pterygodermatites nycticebi has been achieved by regular fecal screening of all callitrichids for spirurid eggs and biannual prophylaxis with mebendazole at 40 mg/kg, as well as a rigorous cockroach extermination program. PMID:6406763

Montali, R J; Gardiner, C H; Evans, R E; Bush, M

1983-04-01

455

Valence atom with bohmian quantum potential: the golden ratio approach  

PubMed Central

Background The alternative quantum mechanical description of total energy given by Bohmian theory was merged with the concept of the golden ratio and its appearance as the Heisenberg imbalance to provide a new density-based description of the valence atomic state and reactivity charge with the aim of clarifying their features with respect to the so-called DFT ground state and critical charge, respectively. Results The results, based on the so-called double variational algorithm for chemical spaces of reactivity, are fundamental and, among other issues regarding chemical bonding, solve the existing paradox of using a cubic parabola to describe a quadratic charge dependency. Conclusions Overall, the paper provides a qualitative-quantitative explanation of chemical reactivity based on more than half of an electronic pair in bonding, and provide new, more realistic values for the so-called “universal” electronegativity and chemical hardness of atomic systems engaged in reactivity (analogous to the atoms-in-molecules framework). PMID:23146157

2012-01-01

456

Thinking about feathers: Adaptations of Golden Eagle rectrices  

USGS Publications Warehouse

The striking black and white plumage of the juvenile Golden Eagle (Aquila chrysaetos) provides an excellent opportunity to examine the possible selective forces influencing the strategic placement of dark pigment in birds. The conflict between opposing selective pressures (first, toward large white patches, which may allay aggression in adults, and second, toward dark plumage to promote camouflage and limit solar and abrasive wear) provides the stage whereon are revealed a score of pigmentation traits of potential adaptive value. The general pigmentation trend is for zones that are more exposed to the sun to be darker than elsewhere. More specifically: (1) for rectrices and remiges, outer webs are darker than inner; (2) for those few feathers (e.g., central rectrices, some scapulars, and some tertials), where both inner and outer webs are heavily and nearly equally solar exposed, pigmentation is supplied similarly on both webs; (3) outermost primaries and rectrices are darkest of all and are structurally similar; (4) for central rectrices, subject to high levels of abrasion with substrate, the tip is paler (resultant flexibility may limit breakage); and (5) pigment is heavier along or on the rachis than on the webs. Many of the traits listed above for the Golden Eagle are also found in other families of birds. Traits of the tail common to many species were a terminal pale tip, a subterminal dark band, rachis darker than vane, and outer webs darker than inner for both remiges and rectrices. The most widespread traits likely have adaptive value. ?? 2006 The Raptor Research Foundation, Inc.

Ellis, D.H.; Lish, J.W.

2006-01-01

457

Evaluation of maxillary anterior teeth and their relation to the golden proportion in malaysian population  

PubMed Central

Background The maxillary anterior teeth are important in achieving pleasing dental aesthetics. Various methods are used to measure the size and form of them, including the golden proportion between their perceived widths, and the width-to-height ratio, referred to as the golden standard. The purpose of this study was conducted to evaluate whether consistent relationships exist between tooth width and height of the clinical crown dimensions; and to investigate the occurrence of the golden proportion of the maxillary anterior teeth. Methods Dental casts of the maxillary arches were made in this cross-sectional study from MAHSA University College students who met the inclusion criteria. The 49 participants represented the Malaysian population main ethnics. The dimensions of the anterior teeth and the perceived width of anterior teeth viewed from front were measured using a digital caliper. Results Comparison of the perceived width ratio of lateral to central incisor and canine to lateral incisor with the golden proportion of 0.618 revealed there were a significant statistical difference (p?golden standard of 80%. There was no significant difference in the comparison among ethnic groups for the golden proportion and the golden standard. Conclusions The golden proportion was not found to exist between the perceived widths of maxillary anterior teeth. No golden standard were detected for the width-to-height proportions of maxillary incisors. Specific population characteristics and perception of beauty must be considered. However, ethnicity has no association with the proportions of maxillary anterior teeth. PMID:23347800

2013-01-01

458

Golden Helix Pharmacogenomics Days: educational activities on pharmacogenomics and personalized medicine.  

PubMed

The Golden Helix Pharmacogenomics Days are high-profile international educational scientific meetings discussing pharmacogenomics and personalized medicine. Here, we provide an overview of the scientific lectures and the topics discussed during the 4th Golden Helix Pharmacogenomics Day, held in Cagliari, Italy, on 7 October 2011, and the 5th Golden Helix Pharmacogenomics Day, that was held in Msida, Malta, on 3 December 2011. The scientific programs of both events included scientific and company lectures on pharmacogenomics, bioinformatics and personalized medicine by local and international speakers from Europe and the USA. PMID:22462744

Squassina, Alessio; Severino, Giovanni; Grech, Godfrey; Fenech, Anthony; Borg, Joseph; Patrinos, George P

2012-04-01

459

Mathematics 2210, Sections 2 and 4 Calculus III Fall 2013 Instructor: Professor Kenneth M. Golden, LCB 328, 801-581-6176 (o), 801-582-0570 (h)  

E-print Network

Mathematics 2210, Sections 2 and 4 Calculus III Fall 2013 Instructor: Professor Kenneth M. Golden, LCB 328, 801-581-6176 (o), 801-582-0570 (h) kenatmath@gmail.com, golden@math.utah.edu, website: www.math.utah.edu/golden be obtained at www.math.utah.edu/golden by clicking on the "Teaching" tab on the left. Course Description

Golden, Kenneth M.

460

Individual variation in endocrine systems: moving beyond the `tyranny of the Golden Mean'  

E-print Network

Review Individual variation in endocrine systems: moving beyond the `tyranny of the Golden Mean and functional significance of phenotypic variation, plasticity and flexibility in endocrine systems, and argue interest to evolutionary biologists (cf. behavioural endocrinology). Keywords: endocrine systems; inter

461

Results of NREL Pyrheliometer Comparisons (NPC1999), October 4-10, 1999, Golden, Colorado  

SciTech Connect

NREL Pyrheliometer Comparisons (NPCs) are held annually at the Solar Radiation Research Laboratory (SRRL) in Golden, Colorado. Open to all pyrheliometer owner/operators, the NPC provides an opportunity to determine the unique WRR transfer factor for each participating pyrheliometer.

Reda, I.; Stoffel, T.; Wilcox, S.

2000-09-01

462

Golden Vision: 50 years of the University of Kansas East Asian Collection  

E-print Network

Vickie Fu Doll Chinese and Korean Studies Librarian International Area Studies University of Kansas Libraries vdoll@ku.edu · http://guides.lib.ku.edu/profile/vdoll Doll, V. (2007). Golden Vision: 50 Years of the University of Kansas East...

Doll, Vickie

2007-10-01

463

Age Structure of Golden-cheeked Warblers in Areas of Low Abundance  

E-print Network

-cheeked warblers (Setophaga chrysoparia). Thus, it is important to know which members of the population are using habitat of varying conditions. Existing demographic literature on golden-cheeked warblers focuses on populations where warblers occur in high abundance...

Pruett, Hannah L

2014-08-05

464

CHRONIC EFFECTS OF DIETARY EXPOSURE TO AMOSITE AND CHRYSOTILE ASBESTOS IN SYRIAN GOLDEN HAMSTERS  

EPA Science Inventory

Bioassays of amosite, short range (SR), intermediate range (IR) or intermediate range chrysotile asbestos in combination with the intestinal carcinogen 1,2-dimethylhydrazine dihydrochloride (DMH) were conducted with male and female Syrian golden hamsters. Amosite and both forms o...

465

Efficient construction of rAAV-based gene targeting vectors by Golden Gate cloning.  

PubMed

The recombinant adeno-associated virus (rAAV) has proven to be an efficient and attractive tool for targeted genome engineering. Here we present a novel method employing the Golden Gate cloning strategy for fast and efficient construction of rAAV-based gene knockout or single-nucleotide knockin vectors. Two vectors, pGolden-Neo and pGolden-Hyg, were generated as common assembling modules to confer antibiotic resistance to the targeting vector. To validate the method, we then generated two rAAV-based targeting vectors: pAAV-pTP53-KO and pAAV-hTau(P301L)-KI. Furthermore, we generated a pGolden-AAV plasmid that allows one-step generation of an rAAV-based targeting vector. Our new methodology for rAAV targeting vector assembly is efficient, accurate, time-saving, and cost-effective. PMID:24806227

Luo, Yonglun; Lin, Lin; Bolund, Lars; Sørensen, Charlotte Brandt

2014-05-01

466

Obtaining a New Representation for the Golden Ratio by Solving a Biquadratic Equation  

E-print Network

In the present work we show how different ways to solve biquadratic equations can lead us to different representations of its solutions. A particular equation which has the golden ratio and its reciprocal as solutions is shown as an example.

Leonardo Mondaini

2014-11-11

467

AUTONOMIC AND BEHAVIORAL THERMOREGULATION IN THE GOLDEN HAMSTER DURING SUBCHRONIC ADMINISTRATION OF CLORGYLINE  

EPA Science Inventory

Chronic administration of clorgyline, a type-A monoamine oxidase inhibitor, leads to a decrease in peritoneal (i.e., core) temperature of golden hamsters. o better understand the mechanisms of clorgyline's thermoregulatory effects, autonomic and behavioral thermoregulatory effect...

468

Abundance and distribution of potential arthropod prey species in a typical Golden cheeked Warbler habitat  

E-print Network

Arthropods have diverse functions in ecosystems, including providing food for resident breeding birds. The Golden-cheeked Warbler, Dendroica chrysoparia Sclater & Salvin is an endangered insectivorus song bird that nests exclusively in the juniper...

Quinn, Michael Andrew

2012-06-07

469

Anisotropie van de energiekloof in hoge Tc supergeleiders Mark Golden Sanne de Jong  

E-print Network

Anisotropie van de energiekloof in hoge Tc supergeleiders Mark Golden Sanne de Jong mgolden-atsign-science.uva.nl sdejong-atsign-science.uva.nl In de groep `Quantum electron matter' van het Van der Waals-Zeeman instituut

470

Waterfront developments in the Middle East case study : the Golden Horn Project, Istanbul, Turkey  

E-print Network

This thesis examines waterfront developments in the Middle East . It concentrates on the Golden Horn project in Istanbul as it raises a number of issues that are central to any such development in that region. In order for ...

Alamuddin, Hana S. (Hana Slieman)

1987-01-01

471

Mtodo de Fibonacci Como no mtodo da "Golden Section" o procedimento de procura de Fibonacci faz  

E-print Network

Método de Fibonacci Como no método da "Golden Section" o procedimento de procura de Fibonacci faz incerteza varia duma iteração para outra. O procedimento é baseado na sequência de Fibonacci Fn{ } definida acontece com os métodos da procura dicotómica e de "Golden section", o método de Fibonacci requer que o

Instituto de Sistemas e Robotica

472

"You Can't Always Get What You Want" - Linearity as the Golden Ratio of Toxicology.  

PubMed

Referring to the Golden Ratio (i.e. expressed in the Fibonacci sequence) in nature and art, we conclude that toxicology knows its own Golden Ration, namely linearity. The latter seems imposed on pharmaco-toxicological processes that in fact show far more complexity than simple linearity could hope to elucidate. Understanding physiological and pharmaco-toxicological processes as primarily linear is challenged in this contribution based on very straightforward principles and examples. PMID:25552963

Bast, Aalt; Hanekamp, Jaap C

2014-12-01

473

Ectoparasitic acari found on golden lion tamarins (Leontopithecus rosalia rosalia) from Brazil.  

PubMed

Anesthetized golden lion tamarins (Leontopithecus rosalia rosalia), a highly endangered species, were examined for ectoparasites by brushing the fur and swabbing the ears. Ectoparasites recovered from the fur included four species of immature ticks (Amblyomma spp.), three species of chiggers (Euschoengastia sp., Microtrombicula brennani and Speleocola tamarina), and one species of follicular mite (Rhyncoptes anastosi). Ectoparasites do not seem to be of particular significance to the health of the golden lion tamarin; this may in part result from grooming. PMID:2503627

Wilson, N; Dietz, J M; Whitaker, J O

1989-07-01

474

“You Can’t Always Get What You Want” – Linearity as the Golden Ratio of Toxicology  

PubMed Central

Referring to the Golden Ratio (i.e. expressed in the Fibonacci sequence) in nature and art, we conclude that toxicology knows its own Golden Ration, namely linearity. The latter seems imposed on pharmaco-toxicological processes that in fact show far more complexity than simple linearity could hope to elucidate. Understanding physiological and pharmaco-toxicological processes as primarily linear is challenged in this contribution based on very straightforward principles and examples. PMID:25552963

Bast, Aalt; Hanekamp, Jaap C.

2014-01-01

475

Golden Indica and Japonica Rice Lines Amenable to Deregulation1  

PubMed Central

As an important step toward free access and, thus, impact of GoldenRice, a freedom-to-operate situation has been achieved for developing countries for the technology involved. Specifically, to carry the invention beyond its initial “proof-of-concept” status in a Japonica rice (Oryza sativa) cultivar, we report here on two transformed elite Indica varieties (IR64 and MTL250) plus one Japonica variety Taipei 309. Indica varieties are predominantly consumed in the areas with vitamin A deficiency. To conform with regulatory constraints, we changed the vector backbone, investigated the absence of beyond-border transfer, and relied on Agrobacterium tumefaciens-mediated transformation to obtain defined integration patterns. To avoid an antibiotic selection system, we now rely exclusively on phosphomannose isomerase as the selectable marker. Single integrations were given a preference to minimize potential epigenetic effects in subsequent generations. These novel lines, now in the T3 generation, are highly valuable because they are expected to more readily receive approval for follow-up studies such as nutritional and risk assessments and for breeding approaches leading to locally adapted variety development. PMID:12970483

Hoa, Tran Thi Cuc; Al-Babili, Salim; Schaub, Patrick; Potrykus, Ingo; Beyer, Peter

2003-01-01

476

RESPIRATORY DYSFUNCTION IN UNSEDATED DOGS WITH GOLDEN RETRIEVER MUSCULAR DYSTROPHY  

PubMed Central

Golden retriever muscular dystrophy (GRMD) is a well-established model of Duchenne muscular dystrophy. The value of this model would be greatly enhanced with practical tools to monitor progression of respiratory dysfunction during treatment trials. Arterial blood gas analysis, tidal breathing spirometry, and respiratory inductance plethysmography (RIP) were performed to determine if quantifiable abnormalities could be identified in unsedated, untrained, GRMD dogs. Results from 11 dogs with a mild phenotype of GRMD and 11 age-matched carriers were compared. Arterial blood gas analysis was successfully performed in all dogs, spirometry in 21 of 22 (95%) dogs, and RIP in 18 of 20 (90%) dogs. Partial pressure of carbon dioxide and bicarbonate concentration were higher in GRMD dogs. Tidal breathing peak expiratory flows were markedly higher in GRMD dogs. Abnormal abdominal motion was present in 7 of 10 (70%) GRMD dogs. Each technique provided objective, quantifiable measures that will be useful for monitoring respiratory function in GRMD dogs during clinical trials while avoiding the influence of sedation on results. Increased expiratory flows and the pattern of abdominal breathing are novel findings, not reported in people with Duchenne muscular dystrophy, and might be a consequence of hyperinflation. PMID:24295812

DeVanna, Justin C.; Kornegay, Joe N.; Bogan, Daniel J.; Bogan, Janet R.; Dow, Jennifer L.; Hawkins, Eleanor C.

2013-01-01

477

Placentation in the Hottentot golden mole, Amblysomus hottentotus (Afrosoricida: Chrysochloridae).  

PubMed

The placentation of the Hottentot golden mole (Amblysomus hottentotus) has been examined using light and electron microscopy and lectin histochemistry of nine specimens at both mid and late gestation. The placentae were lobulated towards the allantoic surface and the lobules contained roughly parallel arrays of labyrinthine structures converging on a central spongy zone. At mid gestation, the arrays were composed of an inner cellular and outer syncytial trophoblast layer, the inner layer enclosing scant connective tissue and fetal capillaries. Maternal blood spaces coursed through the outer trophoblast and were lined by trophoblastic microvilli; the blood spaces were narrow in mid gestation but enlarged near term, while the inner trophoblast layer became thinner and seemed to be syncytial. These features were confirmed by transmission electron microscopy. The microvillous surfaces and dispersed cytoplasmic particles were heavily glycosylated, as shown by lectin histochemistry, and exhibited changes with maturation, particularly a loss in N-acetyl glucosamine oligomers bound by Phytolacca americana lectin on the microvilli lining the maternal blood spaces and outer trophoblast particles. A substantial yolk sac was present both in mid and late gestation stages. It was clearly unattached to the uterus in the later stages. These morphological features are discussed in relation to the phylogenetic position of Amblysomus with respect to other members of Afrosoricida and Afrotheria. PMID:19501397

Jones, C J P; Carter, A M; Bennett, N C; Blankenship, T N; Enders, A C

2009-07-01

478

Finite-Size Corrections to Fermi's Golden Rule  

NASA Astrophysics Data System (ADS)

The decay rates and cross sections are computed by Fermi's golden rule under the assumption that a time interval T is approximated with ? . The corrections to the formula were considered negligible, but are found to become sizable and to modify the rates substantially in various processes where light particles are involved. The decay products have varying kinetic energy and behave like waves in the region where the wave functions of the daughters and parent overlap. The transition amplitude then reveals the correction even at a macroscopic distance. Its implication to the accelerator neutrino is presented. The probability of the event that the neutrino in pion decay is detected at T ? ? ? reveals the unique corrections which can be detected at near detectors. They are approximately proportional to tfrac{1}{T} and determined by the fundamental constants of Lagrangian. From the comparison of the correction with LSND experiment, the heaviest neutrino mass of 0.098 ± 0.022 or 0.085 ± 0.022 eV/c2 for normal or inverted hierarchies is obtained.

Ishikawa, Kenzo; Tobita, Yutaka

479

Progressive parenting behavior in wild golden lion tamarins.  

PubMed

Young primates in the family Callitrichidae (the marmosets and tamarins) receive extensive and relatively prolonged care from adults. Of particular note, callitrichid young are routinely provisioned until well after weaning by parents and helpers, which is in stark contrast to typical juvenile primates, who must acquire most of their food independently once they are weaned. Adults of some callitrichid species produce a specialized vocalization that encourages immature group members to take proffered food from the caller. Here, I report that wild adult golden lion tamarins (Leontopithecus rosalia) not only used this food-offering call to encourage young, mobile offspring to approach and take captured prey from them, but as the young began to spend significant time foraging for themselves and to acquire prey by independent means, the frequency of these vocalizations in the context of food transfer declined. Adults then began to use food-offering calls in a novel context: to direct juveniles to foraging sites that contained hidden prey that the adults had found but not captured. During the period of these most frequent adult-directed prey captures, the independent prey-capture success rates of juveniles improved. Thus, adults modified their provisioning behavior in a progressive developmentally sensitive manner that may have facilitated learning how to find food. I hypothesize that as a result of these demonstrations by adults, juveniles either may be encouraged to continue foraging despite low return rates or to learn the properties of productive prey-foraging substrates in a complex environment. PMID:22479136

Rapaport, Lisa G

2011-07-01

480

Rift Valley Fever Virus Infection in Golden Syrian Hamsters  

PubMed Central

Rift Valley fever virus (RVFV) is a formidable pathogen that causes severe disease and abortion in a variety of livestock species and a range of disease in humans that includes hemorrhagic fever, fulminant hepatitis, encephalitis and blindness. The natural transmission cycle involves mosquito vectors, but exposure can also occur through contact with infected fluids and tissues. The lack of approved antiviral therapies and vaccines for human use underlies the importance of small animal models for proof-of-concept efficacy studies. Several mouse and rat models of RVFV infection have been well characterized and provide useful systems for the study of certain aspects of pathogenesis, as well as antiviral drug and vaccine development. However, certain host-directed therapeutics may not act on mouse or rat pathways. Here, we describe the natural history of disease in golden Syrian hamsters challenged subcutaneously with the pathogenic ZH501 strain of RVFV. Peracute disease resulted in rapid lethality within 2 to 3 days of RVFV challenge. High titer viremia and substantial viral loads were observed in most tissues examined; however, histopathology and immunostaining for RVFV antigen were largely restricted to the liver. Acute hepatocellular necrosis associated with a strong presence of viral antigen in the hepatocytes indicates that fulminant hepatitis is the likely cause of mortality. Further studies to assess the susceptibility and disease progression following respiratory route exposure are warranted. The use of the hamsters to model RVFV infection is suitable for early stage antiviral drug and vaccine development studies. PMID:25607955

Scharton, Dionna; Van Wettere, Arnaud J.; Bailey, Kevin W.; Vest, Zachary; Westover, Jonna B.; Siddharthan, Venkatraman; Gowen, Brian B.

2015-01-01

481

Intestinal helminths of golden jackals and red foxes from Tunisia.  

PubMed

Forty wild canids including 31 golden jackals (Canis aureus Linné, 1758) and 9 red foxes (Vulpes vulpes Linné, 1758) collected between 2008 and 2011 in the northeast, northwest and center of Tunisia were necropsied and examined for intestinal helminth parasites. All jackals and foxes were found infected with a prevalence rate of 95% for cestodes, 82.5% for nematodes and 7.5% for acanthocephalans. A total of twelve helminth species were recorded in red foxes: cestodes, Dipylidium caninum (55.6%), Diplopylidium noelleri (55.6%), Mesocestoïdes lineatus (55.6%), Mesocestoïdes litteratus (33%), Mesocestoïdes corti (22%); nematodes, Ancylostoma caninum (11%), Uncinaria stenocephala (44%), Spirura rytipleurites (11%), Trichuris vulpis (33%), Pterygodermatites affinis (67%), Oxynema linstowi (33%) and the acanthocephalan Macracanthorhynchus hirudinaceus (22%). The fifteen recovered helminth species in jackals were Echinococcus granulosus (9.7%), D. caninum (16%), D. noelleri (16%), M. lineatus (74%), M. litteratus (23%), M. corti (12.9%), Taenia pisiformis (3.2%), Taenia spp. (19%), Toxocara canis (16%), Toxascaris leonina (6.5%), A. caninum (9.7%), U. stenocephala (68%), P. affinis (6.5%), O. linstowi (3.2%) and Macracanthorhynchus hirudinaceus (3.2%). This is the first report on the presence of P. affinis, D. noelleri and O. linstowi in Tunisia. E. granulosus was found in young jackals, aged less than 4 years old, with a higher abundance in females (8.9 worms). M. lineatus presented the highest mean intensity of 231.86 and 108.8 tapeworms respectively in jackals and foxes. Canids from the northwest region had the highest prevalence (77.5%) and highest intensity (243.7) of helminth species compared to those from the northeast and central areas. U. stenocephala and O. linstowi had the highest mean intensity for nematodes in both jackals and foxes at 14.3 and 88 worms respectively. PMID:24938826

Lahmar, Samia; Boufana, Belgees; Ben Boubaker, Sarra; Landolsi, Faouzi

2014-08-29

482

Census and distribution of the golden lion tamarin (Leontopithecus rosalia).  

PubMed

During 1990-1992, a survey of the golden lion tamarin, Leontopithecus rosalia, was carried out throughout its known distribution area. Forest remnants were identified by visual interpretation of Landsat-TM satellite images. Localities occupied by L. rosalia were first identified by interviews with local people. All forests more than 20 ha in size, and for which two or more interviews suggested the presence of the species, were surveyed using "play-back" recordings of lion tamarin long calls. The total wild population of L. rosalia, including that of the Poço das Antas Biological Reserve, was estimated to be 562 individuals in 109 groups. The lion tamarins were generally found in four major areas of forest (six or more groups per forest, not including Poço das Antas), with a further 12 groups isolated in small forest patches. Currently the species' distribution is restricted to just four municipalities in the state of Rio de Janeiro: Silva Jardim, Cabo Frio, Saquarema, and Araruama. Although they are typically confined to lowland forest of <300 m altitude, L. rosalia was recorded at an altitude of 550 m in one locality. Average group size varied from 3.6 to 5.7 individuals, and densities from 0.39 groups/km(2) to 2.35 groups/km(2) (2.17 individuals/ km(2) to 8.53 individuals/km(2)). Six of the isolated groups found during the survey were successfully translocated to a forest of 2400 ha. There is now also a significant population of reintroduced lion tamarins. Overall, however, the possibilities for further expansion of the wild population are severely limited. PMID:12526037

Kierulff, M Cecília M; Rylands, Anthony B

2003-01-01

483

Evaluation of amitrole (aminotriazole) for potential carcinogenicity in orally dosed rats, mice, and golden hamsters  

SciTech Connect

Amitrole was evaluated for carcinogenic potential in lifespan studies on Wistar rats, NMRI mice, and golden hamsters. At the start of the studies the animals were 6 weeks old. Amitrole was administered, mixed with pulverized chow, at dietary concentrations of 0, 1, 10, and 100 micrograms/g (ppm). Each treated group and control group consisted of 75 male and 75 female rats and mice and of 76 male and 76 female golden hamsters. Additional animals were used to evaluate the functional state of the thyroid. Somewhat lower body weights, slightly reduced survival times, and transient effects on thyroid function were observed in golden hamsters at 100 ppm. In mice, a slight increase in pituitary gland hyperemias was seen at 100 ppm; also an effect on thyroid function usually occurred at the same concentration. In rats, a very large number of cystic dilatations of follicles in the thyroid at 100 ppm and a dose-unrelated increase in hemorrhages and hyperemias in the pituitary gland were indicative of an effect of amitrole on these organs. The strongest effect of amitrole on thyroid function, as compared to golden hamsters and mice, was seen in rats at 100 ppm. At this concentration a highly increased number of thyroid and pituitary gland tumors was observed in rats. In golden hamsters and mice, no tumor induction was seen.

Steinhoff, D.; Weber, H.; Mohr, U.; Boehme, K.

1983-06-30

484

Primary infundibular stenosis and pedigree analysis in three Golden Retriever littermates.  

PubMed

Three eight-week-old Golden Retriever puppy littermates were evaluated because of left basilar systolic murmurs and were diagnosed with primary infundibular stenosis. Pedigree analysis in this line was also performed to identify a mode of inheritance. All dogs were asymptomatic at the time of diagnosis; two of the three had congenital lesions in addition to primary infundibular stenosis. Two additional affected dogs were identified in the line, and pedigree analysis suggested an autosomal recessive mode of inheritance. Another, unrelated golden retriever was also identified with isolated infundibular stenosis in the record database. Primary infundibular stenosis should be considered in the differential diagnoses for golden retriever dogs with a left basilar systolic murmur, and is often associated with complex congenital cardiac disease. Primary infundibular stenosis may worsen in severity with time, and in this line of dogs an autosomal recessive pattern of inheritance is likely. PMID:22186718

Arndt, Jason; Werner, Petra; Sleeper, Meg

2012-01-01

485

Golden carbon nanotubes as multimodal photoacoustic and photothermal high-contrast molecular agents  

PubMed Central

Carbon nanotubes have shown promise as contrast agents for photoacoustic and photothermal imaging of tumours and infections because they offer high resolution and allow deep tissue imaging. However, in vivo applications have been limited by the relatively low absorption displayed by nanotubes at near-infrared wavelengths and concerns over toxicity. Here, we show that gold-plated carbon nanotubes—termed golden carbon nanotubes—can be used as photoacoustic and photothermal contrast agents with enhanced near-infrared contrast (~102-fold) for targeting lymphatic vessels in mice using extremely low laser fluence levels of a few mJ cm?2. Antibody-conjugated golden carbon nanotubes were used to map the lymphatic endothelial receptor, and preliminary in vitro viability tests show golden carbon nanotubes have minimal toxicity. This new nanomaterial could be an effective alternative to existing nanoparticles and fluorescent labels for non-invasive targeted imaging of molecular structures in vivo. PMID:19809462

Kim, Jin-Woo; Galanzha, Ekaterina I.; Shashkov, Evgeny V.; Moon, Hyung-Mo; Zharov, Vladimir P.

2012-01-01

486

The Golden-Thompson inequality: Historical aspects and random matrix applications  

SciTech Connect

The Golden-Thompson inequality, Tr?(e{sup A+B}) ? Tr?(e{sup A}e{sup B}) for A, B Hermitian matrices, appeared in independent works by Golden and Thompson published in 1965. Both of these were motivated by considerations in statistical mechanics. In recent years the Golden-Thompson inequality has found applications to random matrix theory. In this article, we detail some historical aspects relating to Thompson's work, giving in particular a hitherto unpublished proof due to Dyson, and correspondence with Pólya. We show too how the 2 × 2 case relates to hyperbolic geometry, and how the original inequality holds true with the trace operation replaced by any unitarily invariant norm. In relation to the random matrix applications, we review its use in the derivation of concentration type lemmas for sums of random matrices due to Ahlswede-Winter, and Oliveira, generalizing various classical results.

Forrester, Peter J., E-mail: p.forrester@ms.unimelb.edu.au; Thompson, Colin J. [Department of Mathematics and Statistics, The University of Melbourne, Victoria 3010 (Australia)] [Department of Mathematics and Statistics, The University of Melbourne, Victoria 3010 (Australia)

2014-02-15

487

1.Physics Department, Colorado School of Mines, Golden, CO 2. National Renewable Energy Laboratory, Golden, CO 3. United Solar Ovonic, LLC Troy, MI, United States THERMAL ACTIVATION OF DEEP OXYGEN DEFECT FORMATION AND HYDROGEN EFFUSION  

E-print Network

1.Physics Department, Colorado School of Mines, Golden, CO 2. National Renewable Energy Laboratory, Golden, CO 3. United Solar Ovonic, LLC Troy, MI, United States BACKGROUND THERMAL ACTIVATION OF DEEP Energy MRSEC at Colorado School of Mines, under contract DMR 0820518. EXPERIMENT RESULTS

488

Herd defensive behaviour of chamois, Rupicapra rupicapra , in response to predation on the young by a golden eagle, Aquila chrysaetos  

Microsoft Academic Search

Summary Young Alpine chamois (Rupicapra rupicapra) are vulnerable to golden eagles (Aquila chrysaetos), while adults are probably eaten only as carrion. Here I report the observation of predation by a golden eagle on an Alpine chamois kid and the attempt at female defensive behaviour. During the eagle attack, the females of the herd surrounded their kids and tried to protect

S. Bertolino

2003-01-01

489

Beyond the Golden Section and Normative Aesthetics: Why Do Individuals Differ so Much in Their Aesthetic Preferences for Rectangles?  

Microsoft Academic Search

Interest in the experimental aesthetics of rectangles originates in the studies of Fechner (1876), which investigated Zeising's suggestion that Golden Section ratios determine the aesthetic appeal of great works of art. Although Fechner's studies are often cited to support the centrality of the Golden Section, a century of subsequent experimental work suggests it has little normative role in rectangle preferences.

I. C. McManus; Richard Cook; Amy Hunt

2010-01-01

490

76 FR 23582 - Golden Spread Panhandle Wind Ranch, LLC; Supplemental Notice That That Initial Market-Based Rate...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Commission [Docket No. ER11-3401-000] Golden Spread Panhandle Wind Ranch, LLC; Supplemental...Rate Filing Includes Request for Blanket Section 204 Authorization This is a supplemental...in the above-referenced proceeding of Golden Spread Panhandle Wind Ranch,...

2011-04-27

491

Analysis of Best Hydraulic Fracturing Practices in the Golden Trend Fields of Oklahoma Shahab D. Mohaghegh, West Virginia University  

E-print Network

Analysis of Best Hydraulic Fracturing Practices in the Golden Trend Fields of Oklahoma Shahab D best practices analysis methodology. The study was performed for gas and oil bearing formations. Among to perform the best practices analysis on the Golden Trend fields of Oklahoma is presented. CONCLUSIONS Wells

Mohaghegh, Shahab

492

Spirituality in the salesperson: the impact of the golden rule and personal faith on workplace job attitudes  

E-print Network

Do salespeople who follow the Golden Rule or let their faith influence their behavior serve their customers better or like their jobs and employers more than other salespeople? The Golden Rule is a quote from Christ found in Matthew 7:12 NIV...

Smith, James Garry

2007-09-17

493

2013 Golden Bear Invitational Wrestling TournUniversiade Pavilion (Butterdome) -2013/01/05 Final Standings / Classement final  

E-print Network

2013 Golden Bear Invitational Wrestling TournUniversiade Pavilion (Butterdome) - 2013/01/05 Final NameClassement Ã?quipe Team Pts Senior Men 54 kg Musonza, Golden Cattown WC1 Naicker, Jay Bears-V2 Men 57 kg Palani, Aso Bears WC1 Schneider, Steven UOFR2 Bray, Dylan UOFS3 Wass, Jason Bears-V4

Martin, Jeff

494

Spawning by California Golden Trout: Characteristics of Spawning Fish, Seasonal and Daily Timing, Redd Characteristics, and Microhabitat Preferences  

Microsoft Academic Search

We investigated the spawning biology of California golden trout Oncorhynchus mykiss aguabonita, an endemic subspecies of rainbow trout, in the Golden Trout Wilderness, California. We investigated the influence of stream temperature on the seasonal and daily timing of spawning, measured characteristics of completed redds, and quantified microhabitat use and preferences by spawning females. We also quantified size at sexual maturity,

Roland A. Knapp; Vance T. Vredenburg

1996-01-01

495

Assessing the cumulative impacts of wind farms on peatland birds: a case study of golden plover Pluvialis apricaria in Scotland  

Microsoft Academic Search

SUMMARY The distribution of golden plover across Scotland was modelled using land cover and management variables, and used to highlight the spatial association between golden plover abundance and current and proposed wind farm developments. Overlap was greatest in three biogeographical zones (the Western Isles, the Western Central Belt and the Borders Hills) and was estimated at ca. 5% of the

J. W. Pearce-Higgins; L. Stephen; R. H. W. Langston; J. A. Bright

2008-01-01

496

Corroded, Thinned and Polished Bones Created by Golden Eagles ( Aquila chrysaetos ): Taphonomic Implications for Archaeological Interpretations  

Microsoft Academic Search

In a recent paper, Schmitt and Juell argued that corroded, thinned, and polished bones may be diagnostic of carnivore scatological bone. This paper examines leporid and bird bones recovered from 20 golden eagle (Aquila chrysaetos) pellets, and concludes that these same taphonomic traces are commonly present on bones regurgitated by this diurnal raptor. As a result, much additional research will

Bryan Scott Hockett

1996-01-01

497

Regional conservation priorities for a large predator: golden eagles ( Aquila chrysaetos) in the Alpine range  

Microsoft Academic Search

We compared the density of golden eagles (Aquila chrysaetos) and their nest dispersion, productivity and diet in Alpine and pre-Alpine areas. The comparison was made at two spatial scales: (1) at the territory level within two contiguous populations, and (2) at the population level, using published data for 22 populations scattered across four countries (France, Switzerland, Germany and Italy). Availability

Paolo Pedrini; Fabrizio Sergio

2002-01-01

498

Modelling the effects of persecution on the population dynamics of golden eagles in Scotland  

Microsoft Academic Search

We used observations of the age structure and breeding productivity of the Scottish population of golden eagles Aquila chrysaetos together with the classic theory of population dynamics to derive current `unmanipulated' estimates of life history parameters. We then used regional differences in age structure associated with differences in persecution intensity to derive estimates of prospective `persecution-free' life history parameters. The

D. P Whitfield; A. H Fielding; D. R. A Mcleod; P. F Haworth

2004-01-01

499

The effects of persecution on age of breeding and territory occupation in golden eagles in Scotland  

Microsoft Academic Search

Several studies have documented negative effects of persecution by humans on the population dynamics of large birds of prey. Several areas have seen a reduction in persecution in modern times, but the demography of large raptors still makes these birds vulnerable to such effects. In a GIS analysis, utilising data collected during two national censuses of the golden eagle Aquila

D. P Whitfield; A. H Fielding; D. R. A Mcleod; P. F Haworth

2004-01-01

500

Genetic signatures of population change in the British golden eagle ( Aquila chrysaetos )  

Microsoft Academic Search

The golden eagle (Aquila chrysaetos) was once widely distributed in the uplands of the British Isles, but is now extinct in Ireland, and largely confined to the highlands and islands of Scotland. As the precise extent and severity of the reduction in population size are unclear, it is important to understand how the population was affected by the decline. We

BRIAN P. BOURKE; Alain C. Frantz; Christopher P. Lavers; Angus Davison; Deborah A. Dawson; Terry A. Burke

2010-01-01