198,926 research outputs found
Evaluation des différences génétiques dans l’importance et la répartition du tissu musculaire, entre 25 et 150 jours, sur des agneaux Romanov, Berrichon x Romanov, Texel x Romanov, Lacaune x Romanov, Charmois x Romanov
No full textQuatre-vingts agneaux mâles doubles appartenant à 5 génotypes (Romanov, Berrichon X Romanov, Texel X Romanov, Lacaune X Romanov, Charmois X Romanov) ont été abattus à différents âges (25, 50, 100 et 150 jours). Les muscles individuels de la demi-carcasse ont été pesés et regroupés en régions musculaires (10) afin d’étudier l’influence de la race des béliers sur l’importance relative et la répartition de la musculature. Après vérification des hypothèses de base, un modèle d’analyse de covariance a été retenu pour comparer les relations d’allométrie établies, pour les différents génotypes, entre le poids total de muscle et le poids de carcasse ou entre le poids de chaque région musculaire et le poids total de muscle. Soit choisir entre trois hypothèses : droites d’allométrie non parallèles (H1), parallèles (H2) ou identiques (H3). A l’exception des muscles de la jambe (H1), les coefficients de croissance relative sont homogènes entre génotypes ( H2 ou H3) dans l’intervalle des poids étudiés. A poids de carcasse égal, les croisés Berrichon X Romanov ont la musculature la moins développée et les croisés Charmois X Romanov la plus développée, respectivement 95,9 et 101,1 quand on les compare aux agneaux Romanov (100). Pour un même poids total de muscle, les différences significatives dans la répartition de la musculature (essentiellement régions musculaires de l’abdomen et de la partie antérieure de la carcasse) sont des différences dont les conséquences économiques sont minimes. Pour certaines régions, elles semblent résulter en grande partie des différences de maturité des agneaux des différents génotypes étudiés.Eighty twin male lambs from 5 genotypes (Romanov, Berrichon X Romanov, Texel X Romanov, Lacaune X Romanov, Charmois X Romanov) were slaughtered at different ages (25, 50, 100 and 150 days). Half carcass individual muscles were weighed and classified into 10 muscle groups in order to study the influence of sire breeds on the weight and distribution of total carcass muscle. Basic hypotheses being verified, a model of covariance analysis was adopted to compare the allometric relationships established, for the different genotypes, between total muscle weight and carcass weight or between the weight of each muscle group and total muscle weight. This analysis enables us to adopt one of the three following hypotheses : nonparallel (H1), parallel (H2) or identical (H3) allometric lines. Except for muscles of the distal part of the pelvic limb (H1), relative growth coefficients are homogenous among breeds (H 2 or H3) within the range of weights studied. At the same carcass weight, Berrichon X Romanov crossbreeds have least muscle and Charmois X Romanov crossbreeds have most muscle, respectively 95.9 and 101.1 when comparing them to Romanov lambs (100). The significant differences in muscle distribution at the same total muscle weight (especially muscle groups of the abdomen and fore part of the carcass) have minimai commercial implications, In certain cases, these differences seem to be due, to a great extent, to ditferences in maturity of the lambs from the genotypes under study
Evaluation des différences génétiques dans l’importance et la répartition du tissu musculaire, entre 25 et 150 jours, sur des agneaux Romanov, Berrichon x Romanov, Texel x Romanov, Lacaune x Romanov, Charmois x Romanov
No full textNational audienceEighty twin male lambs from 5 genotypes (Romanov, Berrichon X Romanov, Texel X Romanov, Lacaune X Romanov, Charmois X Romanov) were slaughtered at different ages (25, 50, 100 and 150 days). Half carcass individual muscles were weighed and classified into 10 muscle groups in order to study the influence of sire breeds on the weight and distribution of total carcass muscle. Basic hypotheses being verified, a model of covariance analysis was adopted to compare the allometric relationships established, for the different genotypes, between total muscle weight and carcass weight or between the weight of each muscle group and total muscle weight. This analysis enables us to adopt one of the three following hypotheses : nonparallel (H1), parallel (H2) or identical (H3) allometric lines. Except for muscles of the distal part of the pelvic limb (H1), relative growth coefficients are homogenous among breeds (H 2 or H3) within the range of weights studied. At the same carcass weight, Berrichon X Romanov crossbreeds have least muscle and Charmois X Romanov crossbreeds have most muscle, respectively 95.9 and 101.1 when comparing them to Romanov lambs (100). The significant differences in muscle distribution at the same total muscle weight (especially muscle groups of the abdomen and fore part of the carcass) have minimai commercial implications, In certain cases, these differences seem to be due, to a great extent, to ditferences in maturity of the lambs from the genotypes under study.Quatre-vingts agneaux mâles doubles appartenant à 5 génotypes (Romanov, Berrichon X Romanov, Texel X Romanov, Lacaune X Romanov, Charmois X Romanov) ont été abattus à différents âges (25, 50, 100 et 150 jours). Les muscles individuels de la demi-carcasse ont été pesés et regroupés en régions musculaires (10) afin d’étudier l’influence de la race des béliers sur l’importance relative et la répartition de la musculature. Après vérification des hypothèses de base, un modèle d’analyse de covariance a été retenu pour comparer les relations d’allométrie établies, pour les différents génotypes, entre le poids total de muscle et le poids de carcasse ou entre le poids de chaque région musculaire et le poids total de muscle. Soit choisir entre trois hypothèses : droites d’allométrie non parallèles (H1), parallèles (H2) ou identiques (H3). A l’exception des muscles de la jambe (H1), les coefficients de croissance relative sont homogènes entre génotypes ( H2 ou H3) dans l’intervalle des poids étudiés. A poids de carcasse égal, les croisés Berrichon X Romanov ont la musculature la moins développée et les croisés Charmois X Romanov la plus développée, respectivement 95,9 et 101,1 quand on les compare aux agneaux Romanov (100). Pour un même poids total de muscle, les différences significatives dans la répartition de la musculature (essentiellement régions musculaires de l’abdomen et de la partie antérieure de la carcasse) sont des différences dont les conséquences économiques sont minimes. Pour certaines régions, elles semblent résulter en grande partie des différences de maturité des agneaux des différents génotypes étudiés
Observation of the cosmic ray shadow of the Sun with the ANTARES neutrino telescope
No full textOne of the main goals of the ANTARES neutrino telescope is the search for point-like neutrino sources. Hence, a reliable method to estimate both the angular resolution and the pointing accuracy of the detector is needed. In this poster we present the study of the Sun "shadow" effect: the shadow is the deficit in the atmospheric muon flux in the direction of the Sun induced by the absorption of the primary cosmic rays. The analysis is based on the ANTARES data sample taken between 2008 and 2017. The Sun shadow effect has been observed with 3.9 statistical significance and the angular resolution of the telescope for downward-going atmospheric muons has been found equal to 0.45 ± 0.12 degrees. The pointing accuracy is consistent with the expectations and no evidence of systematic pointing shifts has been found
Enhanced Self-Synchronized Reduced Media-Independent Interface for Robotic and Automotive Applications
No full textThe increasing pervasiveness of control systems used in robotic and automotive applications requires the installation of a growing number of sensors and actuators. In parallel to the downsizing of all the components, new techniques for tracing versatile printed circuit boards (PCBs) are emerging: A 3-D molded interconnection device, for example, creates the opportunity to reduce up to 75% of weight by combining a single-layer PCB with mechanical parts. Getting rid of unnecessary wires, hence, becomes indispensable, and new on-board interfaces with fewer pins must be designed. This article proposes a novel encoding scheme and the corresponding interface that reduces the number of wires between automotive Ethernet (100BASE-T1) MAC and PHY down to 2 and corrects up to 37.8% of single-bit errors. As this interface can be clocked at 33.33 MHz, it does not require differential transmitters, receivers, or any other special block, and for this reason, it can be easily implemented on a small-sized field-programmable gate array
New records of Characeae for Sicily (Italy)
No full textDuring the last year, the first two authors continued their survey of the scarcely
known Characeae flora of the island of Sicily: plants were collected in different
periods, habitats and areas of the island, and identifications – made on fresh
material – were based mainly on Mouronval et al. (2015). We had the opportunity
to include here some results deriving from the visit in Sicily made by Klaus
van de Weyer in March 2018. Roman Romanov identified some specimens and
revised some identifications. Data for Sicily are basically limited to more than
one hundred years old reports; data for the national Flora have been completed
with recent reports for Sardinia (cf. the work made by Ralf Becker). We present
here the main results (in alphabetic order).
1) Chara baltica Bruzelius (new for Sicily) – Collected in different seasons in the
lake Preola (Nature Reserve near Mazara), where it probably colonises most of
the lake bottom, reaching a depth of ca. 2 m. 2) C. braunii C.C. Gmel. (new for
Palermo province, new population of a rare species in Italy) – Collected in the
small mountain ponds of Rebuttone. 3) C. canescens Loisel. (new population of a
rare species in Italy): we found a new parthenogenetic population in the “Margi
Milo” (Petrosino, Trapani province), where it grows together with C. cf. aspera
Willd. 4) C. conimbrigensis A.G. Cunha (new for Sicily and Italy) – Collected in
June-July in shallow mountain ponds, in the Nebrodi Mts, at about 1400 m a.s.l.
It is different from the similar C. gymnophylla A. Braun mainly for its tylacanthous
stem cortex. Waiting for further studies, we provisionally treat this taxon (as well
as the following one) at the species rank. 5) C. oedophylla Feldmann (new for
Sicily and Italy) – Collected in mid-April in temporary ponds (in the locus classicus
of Isoetes todaroana Troia & Raimondo near Mazara del Vallo). The taxon is
currently known in few sites in W-Mediterranean. 6) Nitella capillaris (Krock.)
J. Groves & Bull.-Webst. (species not recently reported for Sicily and Italy) – Collected
in the wetlands of Anguillara, near Calatafimi. 7) N. opaca (C. Agardh ex
Bruzelius) C. Agardh (new for Sicily) – Collected in the small mountain ponds of
Rebuttone (near Piana degli Albanesi) and Coda di Riccio (in the Nature Reserve
of Ficuzza). 8) Tolypella salina Corill. (new for Sicily) – Collected in March in
a single pond at Margi Milo near Petrosino (Klaus van de Weyer), it probably
occurs also in other sites along the western coast of the island.
- Mouronval JB, Baudouin S, Borel N, Soulié-Märsche I, Klesczewski M & Grillas
P. 2015. Guide des Characées de France méditerranéenne. Office National de la
Chasse et Faune Sauvage, Paris. 214 p
Cechetra inconspicua Ivshin & Krutov & Romanov 2018, sp.n.
No full textCechetra inconspicua Ivshin & Krutov sp.n. Holotype ♂, [Malaysia,] Borneo, Sarawak, Nr Penom, 200m, 17.vi.1990, leg. W.J. Tennent, Cadiou Coll. BMNH (E) 2008-107 [NHMUK] (Fig. 19). Paratypes. 1 ♂, [Malaysia,] Borneo, Sarawak, Penom, 200m, 17.vi.1990, leg W.J. Tennent, Cadiou Coll. BMNH (E) 2008-107 [NHMUK]; 1 ♂, [Malaysia,] Sabah, Mamut, 1500m, 25.v.-4.vi.1980, Leg. T. Hasegawa, [H. Inoue] slide 9520 (♂), Inoue coll. BM 1992-71 [NHMUK]; 1♀, Malaysia, Fraser’s Hill, 4-5.ix.1989, leg. W.J. Tennent, Cadiou Coll. BMNH (E) 2008-107 [NHMUK]; 1 ♂, 2 ♀, Malaysia, Sabah, Crocker Range, Kota Kinabalu + Tambunan, N 5°51’33.7” E 116°17’24.1”, 1240m, 04-26.iv.2013, At light, leg. A. Giusti, M.V.L. Barclay, B.G. Garner & H. Mendel, BMNH(E) 2013-58 [NHMUK]; 14 ♂, 2♀, Malaysia, N Borneo, Sabah, Trus Madi Mt., 1185 m, 5°26'35''N, 116°27'04''E, 1-14.vii.2011, leg. A. Klimenko & V. Gromenko (BOLD sample id BC-Ivsh04731, BC-Ivsh04732, BC-Ivsh04733), coll. N. Ivshin; 3 ♂, Malaysia, N Borneo, Sabah, Trus Madi Mt., 1185 m, 5°26'35''N, 116°27'04''E, 18.viii.2012, leg. A. Klimenko, coll. N. Ivshin; 1♂, Malaysia, S Borneo, Sabah, Nabawan dist., 7km N Pensiangan, 530m., 4.III.2014, leg. local collector, coll. V.V. Krutov; 1 ♂, Indonesia, W Sumatra, Sanggul Mt., 1200 m, vii.2004, leg. St. Jakl, coll. V.V. Krutov;; 1♂, Borneo, Daerah Tongot, Maliau Basin area, road Kalabakan-Sapulut, 4°31'00''N, 117°14'36''E, 24.07.2012, H= 66m, leg. Victor Sinyaev & Svetlana Sinyaeva, coll. V.V.s Krutov; 1♂, Borneo, Daerah Panampang, Road Tambunan-Kinabalu, 5°51'33''N, 116°15'38''E, 12 - 16.08.2012, H= 1000m, leg. Victor Sinyaev & Svetlana Sinyaeva, coll. V.V. Krutov; 1♂, Malaysia, N Borneo, Sabah, Trus Madi Mt., 1185 m, 5°26'35''N, 116°27'04''E, 18.08.2012, leg. A. Klimenko, coll. V.V. Krutov; 1♀, N. Kalimantan, Tambunan distr., Trus Madi mtn, 1150m, 1-12. IV.2011, leg. P. Udovichenko, coll. V.V. Krutov; 1♂, Malaysia, Cameron Highlands, Kuala Woh, 5/24/1996, leg. V. Kroutov, coll. V.V. Krutov; 1 ♂ and 1 ♀: Malaisie, Bornéo, Sabah, Mont Trus Madi, 1500m, mai 1995, leg. Denis Bouchard [CJHL]; 1 ♂ and 1 ♀ Bornéo, Sabah, piste au sud de Tambunan, 650 m, 4 VIII 1991, leg. Jean Haxaire & Pierre Wident [CJHL]; 2 ♂: Bornéo, Sabah, piste au sud de Tambunan, 650 m, 4, 5 et 13 VIII 1991, leg. Jean Haxaire & Pierre Wident: Bornéo, Sabah, piste au sud de Tambunan, 650 m, 4 VIII 1991, leg. Jean Haxaire & Pierre Wident [CJHL]; 1 ♂: Malaysia, Fraser’s Hill, 1000m, 15-31 VIII 1992, leg. Patrick Bleuzen [CJHL]. Total: 39 paratypes. FWL: holotype: 50 mm Cechetra inconspicua is the most divergent species in the genus in terms of its COI mtDNA (COI-5P “barcode region”: Fig. 16, 40, Table 2). In habitus, it is closest to C. lineosa and C. subangustata. Cechetra inconspicua differs from C. lineosa in having entirely white antennae in males and white or dull pinkish ones in females (Fig. 41); in males of C. lineosa, they are brownish, pinkish or greyish basally. In comparison with C. lineosa, in most specimens of C. inconspicua the first diagonal line of the forewing upperside is wider and the distance between the first and second lines is greater than that between the second and the third. The median thoracic pale band of C. inconspicua is divided longitudinally by a thin brown line, whereas in C. lineosa this line is absent, weak or dark green. The colours are less bright than in C. lineosa, C. scotti and C. bryki, making specimens of C. inconspicua look like discoloured C. lineosa or C. subangustata. Except for the colour of antennae, all these characters work well only for fresh or well-preserved specimens. The female is similar to the male but larger. The male genitalia (Fig. 39) differ from those of C. bryki, C. lineosa and C. scotti in the basal section of the harpe being more massive with a curved and less elongate sclerotized process; the phallus armature has a very small denticulate plate with smaller and more numerous uniform teeth. One mtDNA haplotype of C. inconspicua is shown in Fig. 40. The translated polypeptide sequence differs from other Cechetra species in one non-synonymic amino acid substitution. C. inconspicua has been found in Northern Borneo (Sabah, Trusmadi Mt.) and Sumatra at altitudes of about 1000 m where this species appears to be rather common, so most records of C. lineosa from those islands are probably attributable to C. inconspicua. The moth illustrated in Holloway (1987) as C. lineosa is actually C. inconspicua but we were unable to locate that specimen in the NHMUK. In Sumatra, C. inconspicua is sympatric with C. lineosa and C. subangustata; in peninsular Malaysia and Borneo, it flies with C. lineosa. We have no examples of C. subangustata from Borneo. The larval hostplants of C. inconspicua are unknown. Genetically, this species is quite distant from C. lineosa, C. scotti and C. bryki, so the hostplants of C. inconspicua may be different from those of these species. Etymology. The name refers to the long-overlooked existence of this species.Published as part of Ivshin, Nikolay, Krutov, Vadim & Romanov, Denis, 2018, Three new taxa of the genus Cechetra Zolotuhin & Ryabov, 2012 (Lepidoptera, Sphingidae) from South-East Asia with notes on other species of the genus, pp. 1-25 in Zootaxa 4450 (1) on pages 11-12, DOI: 10.11646/zootaxa.4450.1.1, http://zenodo.org/record/144449
Reproductive performance and milk traits of F1 Romanov ewes
No full textThe objective of this study was to evaluate the effect of crossbreeding Awassi and Morkaraman ewes with Romanov sires on litter size and total productivity as reflected by reproductive performance and milk production in the ewes. Twenty-three Romanov x Awassi (RA) and 19 Romanov x Morkaraman (RM) ewes were used. All of the ewes were pregnant at the start of the study, and litter size at birth and at weaning (60 days) were recorded. Milk production was recorded weekly and milk composition was estimated as dry matter and fat percentage. Litter size at birth (RM: 1.89 +/- 0.18: RA: 1.62 +/- 0.15) and weaning (RM: 1.67 +/- 0.20; RA: 1.46 +/- 0.17), dam weight at lambing (RM: 50.2 +/- 2.37; RA: 44.2 +/- 1.98) and total productivity (RM: 29.9 +/- 3.05; RA: 24.4 +/- 2.54) were not influenced by breed-type. Lactation length and milk yield was relatively but not significantly higher in RA than RM ewes. Dry matter and fat percentage of milk were found to be similar for both breed-types. Results of the present study indicate that crossbreeding of Awassi and Morkaraman ewes with Romanov rams yielded similar performance in F1 ewes. When F1 ewe performance is compared with their pure breed maternal ancestor, it is concluded that reproductive performance is improved by crossbreeding with Romanov. (C) 2011 Elsevier B.V. All rights reserved
High Precision Synchronization between Commercial WiFi-ICs and External Device
No full textWireless synchronization of industrial controllers is a challenging task in environments where wired solutions are not practical. The best solutions proposed so far to solve this problem require pretty expensive and highly specialized FPGA-based devices. With this work we counter the trend by introducing a straightforward approach to synchronize a fairly cheap IEEE 802.11 integrated wireless chip (IWC) with external devices. More specifically we demonstrate how we can reprogram the software running in the 802.11 IWC of the Raspberry Pi 3B and transform the receiver input potential of the wireless transceiver into a triggering signal for an external inexpensive FPGA. Experimental results show a mean-square synchronization error of less than 496 ns, while the absolute synchronization error does not exceed 6 μs. The jitter of the output signal that we obtain after synchronizing the clock of the external device did not exceed 5.2 μs throughout the whole measurement campaign. Even though we do not score new records in term of accuracy, we do in terms of complexity, cost, and availability of the required components: all these factors make the proposed technique a very promising of the deployment of large-scale low-cost automation solutions
A Precise Synchronization Method for Future Wireless TSN Networks
No full textTime-Sensitive Networking (TSN) is the most promising time-deterministic wired communication approach for industrial applications. To extend TSN to "IEEE 802.11" wireless networks two challenging problems must be solved: synchronization and scheduling. This paper is focused on the first one. Even though a few solutions already meet the required synchronization accuracies, they are built on expensive hardware that is not suited for mass market products. While next Wi-Fi generation might support the required functionalities, this paper proposes a novel method that makes possible high-precision wireless synchronization using commercial low-cost components. With the proposed solution, a standard deviation of synchronization error of less than 500 ns can be achieved for many use cases and system loads on both CPU and network. This performance is comparable to modern wired real-time field busses, which makes the developed method a significant contribution for the extension of the TSN protocol to the wireless domain
Monocationic μ-diborolyl triple-decker complexes [CpCo(μ-1,3-C 3B2Me5)M(ring)]+: Synthesis, structures, and electrochemistry
No full textCationic triple-decker complexes with a bridging diborolyl ligand, [CpCo(μ-1,3-C3B2Me5)M(ring)]+ (M(ring) = CoCp (2a), CoCp* (2b), RhCp (3a), RhCp* (3b), IrCp (4a), IrCp* (4b), Ru(C6H6) (5a), Ru(p-MeC 6H4Pri) (5b), Ru(C6Me6) (5c), Ru(η6-cycloheptatriene) (6)), were synthesized by reaction of CpCo(μ-1,3-C3B2Me5)Tl with [M(ring)Hal2]2. The structures of 2aBPh4, 2bPF6, 4aPF6, 5aOTf, and 5cPF6 were determined by X-ray diffraction. The electron-transfer ability of the complexes has been ascertained by electrochemical and spectroelectrochemical techniques. In general, they are able to shuttle reversibly in the sequence 2+/+/0/-, plausibly affording completely delocalized mixed-valence derivatives. DFT calculations revealed structural changes accompanying redox processes and satisfactorily predicted the potentials for the first reduction and first oxidation. © 2013 American Chemical Society
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