bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improving distance estimates to nearby bright stars: Combining astrometric data from Hipparcos, Nano-JASMINE and Gaia
Authors: Michalik Daniel , Lindegren Lennart , Hobbs David , Lammers Uwe , Yamada Yoshiyuki 
Published: February 2013

AbstractStarting in 2013, Gaia will deliver highly accurate astrometric data, which eventually will supersede most other stellar catalogues in accuracy and completeness. It is, however, limited to observations from magnitude 6 to 20 and will therefore not include the brightest stars. Nano-JASMINE, an ultrasmall Japanese astrometry satellite, will observe these bright stars, but with much lower accuracy. Hence, the Hipparcos catalogue from 1997 will likely remain the main source of accurate distances to bright nearby stars. We are investigating how this might be improved by optimally combining data from all three missions through a joint astrometric solution. This would take advantage of the unique features of each mission: the historic bright-star measurements of Hipparcos, the updated bright-star observations of Nano-JASMINE, and the very accurate reference frame of Gaia. The long temporal baseline between the missions provides additional benefits for the determination of proper motions and binary detection, which indirectly improve the parallax determination further. We present a quantitative analysis of the expected gains based on simulated data for all three missions.
The kinematics and chemistry of the Sagittarius streams
Authors: Shi Weibin , Chen Yuqin , Carrell Kenneth , Zhao Gang 
Published: February 2013

AbstractWe selected red horizontal-branch stars along the streams of the Sagittarius dwarf galaxy (Sgr) from sdss DR7 spectroscopic data using a theoretical model. We investigate the metallicity distribution of stars in the Sgr streams. The metallicity gradient is (−1.8 ± 0.3) × 10⊃3 dex deg−1 in the first wrap of the trailing arm and (−1.5 ± 0.4) × 10−3 dex deg−1 in the first wrap of the leading arm.
A preliminary systematic search for red-clump stars in Galactic open clusters based on 2mass data
Authors: Zhang Xi , Chen Li , Li Zhongmu 
Published: February 2013

AbstractRed-clump (RC) giants are intermediate-age, core-helium-burning stars. The RC can be used as a standard candle. In particular, the small variance of the RC's K-band intrinsic luminosity and its weak dependence on chemical composition and age make it an extremely useful distance indicator. In this paper, we use 2mass data to search for RC stars in a sample of 60 Galactic open clusters with known reddening, ages, and distances, and obtain an average value for the RC's absolute Ks-band magnitude, MKs = −1.72 ± 0.17 mag.
Identification of Volatile Flavor Constituents of the Peel (Flavedo) from Five Greek Citrus Varieties Cultivated in the Area of Arta
Authors: Demertzis P. G. , Passa A. I. , Akrida-Demertzi K. 
Published: February 2013

Citrus is one of the world's most important fruit crops with a total world production of approximately 105 million metric tons. The citrus fruit consists of the following fundamental parts: the flavedo (external colored part of the peel), the albedo (white internal part of the peel), the pericarp which contains the above mentioned parts, and the pulp containing the juices and the seeds, called endocarp. The flavedo is composed mainly of cellulosic material and contains other components such as essential oils, non-volatile fraction of the essential oil (paraffin waxes, steroids, fatty acids, flavones etc.), and additional components such as pigments, bitter compounds (limonin) and enzymes.
In the present study the volatile flavor constituents of the peel (flavedo) from five Greek citrus varieties cultivated in the area of Arta (Zambetakis lemon variety, Navelina oranges, Valencia oranges, Common orange variety and bitter oranges) have been characterized by headspace solid-phase microextraction (HS-SPME) in conjunction with gas chromatography - mass spectrometry (GC-MS). For HS-SPME method a 100-μm PDMS fiber coating was utilized. GC-MS separations of volatile compounds were made using a 60 m×320 μm I.D.×1 μm film thickness DB5 (non polar) column. Eighty two (82) compounds were totally identified in citrus peel samples. More specifically, a total of 52, 57, 54, 53 and 36 compounds were found in Zambetakis lemon variety, Navelina oranges, Valencia oranges, common orange variety and bitter oranges, respectively. The identified compounds belong to the group of esters, alcohols, aldehydes and mainly sesquiterpene hydrocarbons. Limonene was the most abundant component in all samples, followed by sabinene, β-pinene, β-myrcene and linalool.
Total Phenolics, Antioxidant and Antibacterial Activity of Commercial Pomegranate Based Juices from Greece
Authors: Zografou E. Ch. , Kallimanis A. , Akrida-Demertzi K. , Demertzis P. G. 
Published: February 2013

Pomegranate (Punica granatum L.) is a fruit that increasingly is becoming recognised for its health properties, prompting the development of derivate products that attempt to keep the main properties of the raw fruit. Pomegranate can be consumed as a fruit or is used for the production of juices, jams, jellies, flavorings for drinks etc. Pomegranate juices may also be combined with other fruit juices.
In the present study, five commercial pomegranate-based juices (natural pomegranate juice, natural pomegranate-strawberry juice and natural pomegranate-blackberry juice, pomegranate juice from concentrate and pomegranate-grape juice from concentrate) were analyzed for total phenolics, antioxidant and antibacterial activity. The amount of total phenolics was measured with the Folin-Ciocalteu reagent and the antioxidant capacity was determined by the scavenging activity against 2,2-diphenyl-1-picrylhydrazyl (DPPH). The antibacterial activity of the juices was screened using two Gram-positive bacteria (Staphylococcus aureus, Listeria monocytogenes) and one Gram-negative (Escherichia coli). Results showed that the juices from concentrate contained noticeably higher total phenolics than the other juices. Furthermore, the addition of other fruit juices (blackberry, strawberry) to the natural pomegranate juice increased the amount of the phenolics. The DPPH method revealed that higher concentration of phenolic content of the juices is associated with higher radical scavenging activity. In the microbiological assay, the most sensitive bacteria to the juices tested were S. aureus and E. coli. Little or no inhibitory effect was observed against L. monocytogenes.
Nuclear export factor 3 is involved in regulating the expression of TGF-β3 in an mRNA export activity-independent manner in mouse Sertoli cells
Authors: Yin Yimeng , Wang Guishuan , Liang Ning , Zhang Huijuan , Liu Zhimin , Li Wenqing , Sun Fei 
Published: February 2013

The NXF (nuclear export factor) family members are implicated in the transport of mRNA from the nucleus to the cytoplasm. Recently, some members of the NXF family have been reported to play divergent functional roles, such as post-transcriptional regulation, translational control, regulation of mRNA stability and trafficking. However, little is known about the roles of NXF3 in spermatogenesis. In the present study, we found that mouse NXF3, specifically expressed in principal cells in segment II of the caput epididymis, as well as Sertoli cells in the mouse testis, was required to mediate TGF-β (transforming growth factor β)-induced down-regulation of Tgfb3/TGF-β3 mRNA expression and protein secretion in Sertoli cells. In addition, NXF3 was also involved in TGF-β-induced transcriptional regulation of other genes associated with Sertoli cell maturation and the restructuring of the Sertoli cell BTB (blood–testis barrier), such as Gata1 (GATA-binding protein 1), Wt1 (Wilms's tumour homologue 1), Cldn11 (claudin11) and Cdkn1a (cyclin-dependent kinase inhibitor 1A or p21Cip1). The transcriptional regulation of NXF3 was mediated through physical interaction with STRAP (serine/threonine kinase receptor-associated protein), where NXF3 inhibited the complex formation among Smad7, STRAP and activated type I TGF-β receptor. Taken together, our data provide mechanistic insights into the roles of NXF3 in TGF-β-mediated expression of Tgfb3 and other genes. NXF3 may be implicated in Sertoli cell maturation and the extensive restructuring of the Sertoli cell BTB.
The direct renin inhibitor aliskiren improves vascular remodelling in transgenic rats harbouring human renin and angiotensinogen genes
Authors: Savoia Carmine , Arrabito Emanuele , Parente Rosa , Sada Lidia , Madaro Luca , Nicoletti Carmine , Zezza Luigi , Alonzo Alessandro , Rubattu Speranza , Michelini Serena , Muller Dominik N. , Volpe Massimo 
Published: February 2013

In the present study, we tested the hypothesis that chronic treatment with the direct rennin inhibitor aliskiren improves the remodelling of resistance arteries in dTGR (double-transgenic rats). dTGR (5 weeks) were treated with aliskiren (3 mg/kg of body mass per day) or ramipril (1 mg/kg of body mass per day) for 14 days and compared with age-matched vehicle-treated dTGR. BP (blood pressure) was similarly reduced in both aliskiren-treated and ramipril-treated rats compared with control dTGR (167±1 and 169±2 mmHg compared with 197±4 mmHg respectively; P&lt;0.05). The M/L (media-to-lumen) ratio assessed on pressurized preparations was equally reduced in aliskiren-treated and ramipril-treated rats compared with controls (6.3±0.5 and 6.4±0.2% compared with 9.8±0.4% respectively; P&lt;0.05). Endothelium-dependent and -independent relaxations were similar among the groups. L-NAME (NG-nitro-L-arginine methyl ester) significantly reduced acetylcholine-induced dilation in drug-treated dTGR. This effect was significantly more prominent in aliskiren-treated rats. eNOS (endothelial NO synthase) expression showed a 2-fold increase only in aliskiren-treated dTGR as compared with controls (P&lt;0.01) and ramipril-treated dTGR (P&lt;0.05). Plasma nitrite, as an index of NO production, was significantly increased in dTGR treated with either aliskiren or ramipril compared with controls. Only aliskiren induced a 2-fold increase in plasma nitrite, which was significantly greater than that induced by ramipril (P&lt;0.05). gp91phox expression and ROS (reactive oxygen species) production in aorta were significantly and similarly reduced by both drugs. In conclusion, equieffective hypotensive doses of aliskiren or ramipril reduced the M/L ratio of mesenteric arteries and improved oxidative stress in dTGR. However, only aliskiren increased further NO production in the vasculature. Hence, in dTGR, direct renin inhibition induces favourable effects similar to that induced by ACE (angiotensin-converting enzyme) inhibition in improving vascular remodelling through different mechanisms.
Transmission of JPEG2000 images over frequency‐selective channels with unequal power allocation
Authors: Shayegannia Moein , Hajshirmohammadi Atousa , Muhaidat Sami , Torki Mahin 
Published: February 2013

In this study, transmission of JPEG2000 images using an unequal power allocation (UPA) scheme and orthogonal frequency division multiplexing (OFDM) over block‐fading frequency‐selective channels is presented. A distortion model is provided to evaluate the contribution of each coding pass (CP) in the construction of the received image. The optimisation algorithm exploits the hierarchical structure of the JPEG2000 images and uses the distortion model along with the channel state information for allocating optimal values of power for each CP to minimise the end‐to‐end distortion. Furthermore, the actual total power consumed for transmission is measured and compared with the total power initially assigned. For the purpose of simulations, the authors set the number of OFDM subcarriers to be 16, the length of the cyclic prefixes equal to the channel memory length and analyse the quality of the received image in a 2‐tap and 3‐tap frequency‐selective channel, with and without our proposed UPA technique in an OFDM system. The results show an improvement of up to 10.5 dB in the decoded image quality when the UPA scheme is used. In addition, our system manages to maintain similar quality for the received image in a multi‐tap channel scenario.
Comparison of Traditional and Fermented Soybean Meals as Alternatives to Fish Meal in Hybrid Striped Bass Feeds
Authors: Rombenso Artur , Crouse Curtis , Trushenski Jesse 
Published: February 2013

Abstract
Soybean meal is one of the most common fish meal alternatives used in aquafeeds because of its high protein density, favorable amino acid profile, comparatively low price, and widespread availability. However, palatability issues and antinutritional factors limit soybean meal inclusion, particularly in feeds for carnivorous fishes. Various processing strategies, including fermentation, may offer some advantage in terms of reducing or eliminating antinutritional factors while enhancing protein content, improving protein absorption rate, and feed intake. Accordingly, we assessed production performance of juvenile hybrid Striped Bass (White Bass Morone chrysops × Striped Bass M. saxatilis) fed diets containing 30% menhaden fish meal, or reduced or fish-meal-free feeds (0, 5, or 10% fish meal) containing traditional soybean meal (47.5% crude protein) or PepSoyGen fermented soybean meal (52.0% crude protein) as the principal sources of dietary protein. Each dietary treatment was fed to quadruplicate tanks of fish (10 fish/tank; average individual weight = 18.1 ± 0.2 g [mean ± SE], n = 4) in a recirculation system for 8 weeks. Production performance tended to decline among fish fed diets containing less than 10% fish meal; however, this effect was less overt among those fed the fermented soybean meal-based feeds. At each level of fish meal replacement, fish fed the fermented soybean meal treatment outgrew those fed the corresponding traditional soybean meal feed, though differences at the 5% fish meal level were not statistically significant. Fermentation appears to increase the acceptability and biological value of soybean meal in hybrid Striped Bass feeds, and PepSoyGen shows promise as a fish meal alternative for aquafeeds for carnivorous fishes.
Visualizing Samsonfish (Seriola hippos) with a Reson 7125 Seabat multibeam sonar
Authors: Parsons Miles J. G. , Parnum Iain M. , McCauley Robert D. 
Published: February 2013

Abstract
Parsons, M. J. G., Parnum, I. M., and McCauley, R. D. 2013. Visualizing Samsonfish (Seriola hippos) with a Reson 7125 Seabat multibeam sonar – ICES Journal of Marine Science, 70: 665–674. In Western Australia, aggregations of Samsonfish (Seriola hippos) form each summer to spawn in waters west of Rottnest Island. In this study, a Reson 7125 Seabat multibeam sonar (400 kHz) was pole mounted aboard a 21.6 m vessel, conducting acoustic transects to acquire acoustic backscatter simultaneously from a midwater aggregation of S. hippos and the wreck it surrounded. The processed backscatter produced high-resolution visualizations of both the fish and seabed. During a 15 min period, the centroid of the aggregation moved 91 m around the eastern and northeastern side of the wreck and probably exhibited lateral vessel avoidance behaviour from the survey vessel. Additionally, a northeasterly current at the site was inferred from subtle habitat features, suggesting that at the time of the survey the aggregation preferred to remain upcurrent of the wreck. These findings confirmed that the S. hippos aggregations do not necessarily remain directly above the wrecks and do not always remain sedentary. Aggregation acoustic density packing at the survey site was observed at 12.7 ± 2.4 m3 per fish, equivalent to ∼1.6 ± 0.1 body lengths nearest-neighbour distance.
Hard White Versus Hard Red Wheats: Taste Tests and Milling and Baking Properties
Authors: Talbert Luther E. , Hofer Petrea , Nash Deanna , Martin John M. , Lanning Susan P. , Sherman Jamie D. , Giroux Michael J. 
Published: February 2013

ABSTRACTMolecular markers for the red grain color (R) loci controlling seed color and the polyphenol oxidase (Ppo‐A1) locus controlling polyphenol oxidase (PPO) activity in seed have recently been developed. These markers provided the opportunity to convert the hard red spring wheat cultivars Choteau and Hank to white‐seeded versions with high and low PPO levels, respectively. These sets of near‐isogenic lines provided material to test the effects of seed color and PPO activity on a range of end‐use quality traits. We tested recurrent parents Choteau and Hank, along with near‐isogenic derivatives with white seed, in two replicated trials in Bozeman, Montana, for end‐use quality parameters. The white‐seeded lines consisted of both high‐ and low‐PPO near‐isogenic lines. The primary impact of white seed was the production of whole wheat bread with a perceived sweeter taste relative to the red‐seeded lines. Noodle color was not consistently impacted by the level of PPO variation despite relatively large reductions in PPO level. The alleles for white seed color did not appear to impact agronomic traits. These results suggested that hard white low‐PPO hard spring wheat would be advantageous in terms of conferring brighter color to Asian noodles and a sweeter taste to whole wheat bread.
First Report of Crown Rot of Strawberry Caused by Macrophomina phaseolina in Chile
Authors: Sánchez S. , Gambardella M. , Henríquez J. L. , Díaz I. 
Published: February 2013

In recent years, an increase of collapsed and dead strawberry plants has been observed in several fields in central Chile, specifically in San Pedro, Melipilla, an important area for strawberry cultivation in the country. To determine the causal agent of the disease and the extent of the problem, 25 sample sites of 1 ha each, distributed in different San Pedro zones, were surveyed at the end of the 2011 season (from December 2010 to February 2011). Cross sections of the crowns of symptomatic strawberry plants showed necrotic tissue and brown-red to dark brown areas on the vascular ring. Samples of the affected crowns were superficially disinfested and plated on potato dextrose agar with 200 μg/ml of streptomycin sulfate. Dark gray colonies were observed after 7 days of incubation at 24°C. Pure cultures of the pathogen showed aerial mycelium and abundant dark oblong sclerotia. Fifty sclerotia were measured, averaging 120 × 74 μm. Twenty-one isolates were identified molecularly utilizing the species specific primers MpKFI and MpKRI (2) that yielded a 350-bp fragment. The amplified DNA fragments were sequenced and BLAST analysis showed a 99% nucleotide sequence identity with Macrophomina phaseolina (GeneBank Accession No JX535007.1). Both morphological and molecular analyses confirmed that the isolated species corresponded to M. phaseolina, causal agent of crown and root rot in strawberry. Four representative isolates were selected to conduct pathogenicity tests. Inoculum was prepared by incubating the pathogen for 28 days at 20°C in sterilized oat seeds. Pots of 1.5 liters were filled with a mixed substrate of peat and perlite (2:1), amended with inoculated oats at 9 g per liter of substrate. ‘Camarosa’ strawberry plants were planted and grown in a glasshouse for 1 month. Six replicated plants per isolate and six plants growing on non-inoculated substrate were left as controls. Ninety-five percent of the inoculated plants showed wilt and collapse symptoms 22 days after transplant, whereas no symptoms were observed in the control plants. M. phaseolina was reisolated from the crowns of symptomatic plants, fulfilling Koch's postulates. The pathogen was isolated from symptomatic strawberry plants in 14 of the 25 sampled sites. Although M. phaseolina was described previously on other crops in Chile, to our knowledge, this is the first report of M. phaseolina causing crown rot of strawberry. The disease has been recently reported in Spain, the United States, and Argentina (1,3,4). References: (1) M. Avilés et al. Plant Pathol. 57:382, 2008. (2) B. Babu et al. Mycologia 99:797, 2007. (3) O. Baino et al. Plant Dis. 95:1477, 2011. (4) S. Koike. Plant Dis. 92:1253, 2008.
Sympathetic skin responses from the scalp evoked by electrical stimulation in seborrheic dermatitis
Authors: Altunrende Burcu , Yildiz Serpil , Kandi Basak , Yildiz Nebil 
Published: February 2013

AbstractAlthough the role of autonomic nervous system in seborrheic dermatitis (SD) is still unclear, seborrhea is sometimes accepted as a sign of autonomic dysfunction in several nervous system diseases. Therefore, we aimed to investigate the sympathetic nervous system (SNS) activity in SD by recording sympathetic skin responses (SSR) from the scalp (S‐SSR). Thirty‐one control subjects and 22 SD patients were studied by evoking right and left S‐SSR with electrical stimulation of the right median nerve at the wrist. Mean latencies and maximum amplitudes were calculated for both sides in each group. In seven out of 31 control subjects and in 13 out of 22 patients, the S‐SSR could not be elicited on either side. There were four subjects with unilateral response in the patient group. There were significantly more non‐responders among the patients with SD (P < 0.000). This study suggests that in SD, the autonomic nervous system may be involved. The S‐SSR is a new site for recording SSR. The responses are relatively symmetrical and can be evoked easily by electrical stimulation, and may be used to evaluate the SNS function in SD patients and also in healthy subjects.
Commentary on Politics of Urbanism: Seeing Like a City by Warren Magnusson
Authors: Brunet‐Jailly Emmanuel , Kataoka Serena , Keil Roger , Sancton Andrew , Taylor Zack 
Published: February 2013

AbstractPolitics of Urbanism: Seeing Like a City is Warren Magnusson's most recent book. It will find a permanent place as a key contribution in the annals of urban studies, urban politics, political and state theory and international relations, marking a turning point in the way scholars, activists and policymakers see the world. In particular, Magnusson fundamentally questions how we understand and analyse our world from the perspective of the state (the illusion of the sovereign), suggesting we shift instead to the perspective of the city (with its multiplicity of authorities). ‘How welcome should this be?’ is the question that I put to three Canadian colleagues — Roger Keil, Andrew Sancton and Zack Taylor — at the 2011 meeting of the Canadian Political Science Association in Waterloo, ON, Canada. Their answers follow a summary of this rather concise and very readable book that Serena Kataoka and I prepared to introduce those commentaries.
Seeing Like a Theorist
Authors: King Loren 
Published: February 2013

AbstractWarren Magnusson sees a problem endemic to political thought and practice: we see the world in ways that presume and reaffirm the necessity of a sovereign territorial state, on pain of violent disorder in its absence. The solution is to ‘see like a city’, shaking off the dualism of sovereignty versus anarchy and finding a richer space of political possibilities. I admire and applaud Magnusson's critical efforts to challenge dominant categories and illuminate possibilities, but these aims rest uneasily with his polemical contrast between sovereignty and cities.