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Li, Y.S.,Zhu, N.H.,Niu, P.P.,Shi, F.X.,Hughes, C.L.,Tian, G.X.,Huang, R.H. Asian Australasian Association of Animal Productio 2013 Animal Bioscience Vol.26 No.7
To investigate the effect of dietary chromium (Cr) as Cr methionine (CrMet) on growth performance, carcass traits, pork quality, meat colour and expression of meat colour-related genes in growing-finishing pigs, 189 crossbred Duroc${\times}$(Landrace${\times}$Yorkshire) growing-finishing pigs (male, castrated, average initial BW $74.58{\pm}1.52$ kg) were selected and randomly allocated into four groups. Dietary treatments per kg of feed were as follows: 0 (CT), 0.3 mg/kg (T1), 0.6 mg/kg (T2) and 0.9 mg/kg (T3) Cr (in the form of CrMet; as-fed basis), and each treatment was replicated five times with 8 to 10 pigs per replicate pen. During the 28 d of the experiment, both the ADG and the ADFI increased linearly (p<0.05) as the level of dietary Cr increased. The F/G ratio decreased linearly (p<0.05). As dietary Cr increased, loin muscle areas (linear, p = 0.013) and average backfat thickness (linear, p = 0.072) decreased. Shear force (linear, p = 0.070) and Commission Internationale de I'$\acute{E}$clairage (CIE) redness (quadratic, p = 0.028) were increased. In addition, CIE Lightness (quadratic, p = 0.053) were decreased as dietary Cr increased. As dietary Cr increased, total myglobin (Mb) content (quadratic, p = 0.015) and the mb mRNA levels (quadratic, p = 0.046) in longissimus muscles of pigs were up-regulated. In conclusion, supplementation of dietary Cr improved growth and meat colour, but increased shear force and decreased IMF reduced palatability of longissimus muscles. Moreover, the increasing total Mb content and mb mRNA levels indicated that CrMet dietary supplementation may improve meat colour via up-regulating expression of the mb gene.
OGLE-2016-BLG-0693LB: Probing the Brown Dwarf Desert with Microlensing
Ryu, Y.-H.,Udalski, A.,Yee, J. C.,Albrow, M. D.,Chung, S.-J.,Gould, A.,Han, C.,Hwang, K.-H.,Jung, Y. K.,Shin, I.-G.,Zhu, W.,Cha, S.-M.,Kim, D.-J.,Kim, H.-W.,Kim, S.-L.,Lee, C.-U.,Lee, Y.,Park, B.-G.,P American Astronomical Society 2017 The Astronomical journal Vol.154 No.6
<P>We present an analysis of microlensing event OGLE-2016-BLG-0693, based on the survey-only microlensing observations by the OGLE and KMTNet groups. In order to analyze the light curve, we consider the effects of parallax, orbital motion, and baseline slope, and also refine the result using a Galactic model prior. From the microlensing analysis, we find that the event is a binary composed of a low-mass brown dwarf (49(-18)(+20) Mj) companion and a K- or G-dwarf host, which lies at a distance of 5.0 +/- 0.6 kpc toward the Galactic bulge. The projected separation between the brown dwarf and its host star is less than similar to 5 au, thus it is likely that the brown dwarf companion is located in the brown dwarf desert.</P>
Zeng, P.L.,Yan, H.C.,Wang, X.Q.,Zhang, C.M.,Zhu, C.,Shu, G.,Jiang, Q.Y. Asian Australasian Association of Animal Productio 2013 Animal Bioscience Vol.26 No.7
Two experiments were conducted to determine the effects of different dietary lysine levels on the apparent nutrient digestibility, the serum amino acid (AA) concentration, and the biochemical parameters of the precaval and portal vein blood in growing pigs. In Experiment 1, 15 noncannulated pigs received diets with different lysine densities (0.65%, 0.95%, and 1.25% lysine) for 13 d. A total collection digestion test was performed, and blood samples were collected from the precaval vein at the end of the experiment. In Experiment 2, four cannulated pigs were fed the same diets of Experiment 1. The experiment used a self-control experimental design and was divided into three periods. On d 5 of each period, at 0.5 h before feeding and hourly up to 8 h after feeding, single blood samples were collected from catheters placed in the portal vein. In Experiment 1, some serum AAs (including lysine), serum urinary nitrogen (SUN), and total protein (TP) concentrations were significantly affected by the dietary lysine levels (p<0.05). Moreover, the 0.65% lysine treatment showed a significant lower apparent digestibility of gross energy, dry matter, crude protein, and phosphorus than the other treatments (p<0.05). In Experiment 2, serum lysine, histidine, phenylalanine, threonine, valine, isoleucine (p = 0.0588), triglyceride, and SUN (p = 0.0572) concentrations were significantly affected by the dietary lysine levels (p<0.05). Additionally, almost all of the determined serum AA and total AA concentrations reached their lowest values at 0.5 h before feeding and their highest values at 2 h after feeding (p<0.05). These findings indicate that the greatest absorption of AA occurred at 2 h after feeding and that the dynamic profile of serum AA is affected by the dietary lysine levels. Moreover, when the dietary lysine content was 0.95%, the growing pigs achieved a better nutrient digestibility and serum metabolites levels.
Jeon, S. G.,Moon, H.-G.,Kim, Y.-S.,Choi, J.-P.,Shin, T.-S.,Hong, S.-W.,Tae, Y.-M.,Kim, S.-H.,Zhu, Z.,Gho, Y. S.,Kim, Y.-K. Blackwell Publishing Ltd 2009 Clinical and experimental allergy Vol.39 No.6
<P>Summary</P><P>Background</P><P>We recently demonstrated that the T-helper type 1 (Th1) immune response plays an important role in the development of non-eosinophilic inflammation induced by airway exposure of an allergen plus double-stranded RNA (dsRNA). However, the role of lipoxygenase (LO) metabolites in the development of Th1 inflammation is poorly understood.</P><P>Objective</P><P>To evaluate the role of LO metabolites in the development of Th1 inflammation induced by sensitization with an allergen plus dsRNA.</P><P>Methods</P><P>A Th2-allergic inflammation mouse model was created by an intraperitoneal injection of lipopolysaccharide-depleted ovalbumin (OVA, 75 μg) and alum (2 mg) twice, and the Th1 model was created by intranasal application of OVA (75 μg) and synthetic dsRNA [10 μg of poly(I : C)] four times, followed by an intranasal challenge with 50 μg of OVA four times. The role of LO metabolites was evaluated using two approaches: a transgenic approach using 5-LO<SUP>−/−</SUP> and 15-LO<SUP>−/−</SUP> mice, and a pharmacological approach using inhibitors of cysteinyl leucotriene receptor-1 (cysLTR1), LTB4 receptor (BLT1), and 15-LO.</P><P>Results</P><P>We found that the Th1-allergic inflammation induced by OVA+dsRNA sensitization was similar between 5-LO<SUP>−/−</SUP> and wild-type (WT) control mice, although Th2 inflammation induced by sensitization with OVA+alum was reduced in the former group. In addition, dsRNA-induced Th1 allergic inflammation, which is associated with down-regulation of 15-hydroxyeicosateraenoic acids production, was not affected by treatment with cysLTR1 or BLT1 inhibitors, whereas it was significantly lower in 12/15-LO<SUP>−/−</SUP> mice compared with WT control mice. Moreover, dsRNA-induced allergic inflammation and the recruitment of T cells following an allergen challenge were significantly inhibited by treatment with a specific 15-LO inhibitor (PD146176).</P><P>Conclusion</P><P>15-LO metabolites appear to be important mediators in the development of Th1-allergic inflammation induced by sensitization with an allergen plus dsRNA. Our findings suggest that the 15-LO pathway is a novel therapeutic target for the treatment of virus-associated asthma characterized by Th1 inflammation.</P>
Udalski, A.,Yee, J. C.,Gould, A.,Carey, S.,Zhu, W.,Skowron, J.,Kozłowski, S.,Poleski, R.,Pietrukowicz, P.,Pietrzyń,ski, G.,Szymań,ski, M. K.,Mró,z, P.,Soszyń,ski, I.,Ulaczyk, K.,W IOP Publishing 2015 The Astrophysical journal Vol.799 No.2
<P>We combine Spitzer and ground-based observations to measure the microlens parallax vector pi(E), and thus the mass and distance of OGLE-2014-BLG-0124L, making it the first microlensing planetary system with a space-based parallax measurement. The planet and star have masses of m similar to 0.5M(jup) and M similar to 0.7M(circle dot) and are separated by a(perpendicular to) similar to 3.1AU in projection. The main source of uncertainty in all of these numbers (approximately 30%, 30%, and 20%) is the relatively poor measurement of the Einstein radius theta(E), rather than uncertainty in pE, which is measured with 2.5% precision. This compares to 22% based on OGLE data alone, implying that the Spitzer data provide not only a substantial improvement in the precision of the pE measurement, but also the first independent test of a ground-based pE measurement.</P>
Mesoporous silica (MCM-41) effect on (PEO+LiAsF<sub>6</sub>) solid polymer electrolyte
Subba Reddy, Ch.V.,Wu, G.P.,Zhao, C.X.,Jin, W.,Zhu, Q.Y.,Chen, W.,Mho, Sun-il Elsevier 2007 Current Applied Physics Vol.7 No.6
<P><B>Abstract</B></P><P>Composite polymer electrolyte films consisting of polyethylene oxide (PEO), LiAsF<SUB>6</SUB> and mesoporous silica (MCM-41) with fixed PEO/LiAsF<SUB>6</SUB>=90/10 but different weight percent ratios of MCM-41 were prepared using the solution casting method. The polymer electrolyte films were characterized using XRD, DSC, SEM and electrical impedance spectroscopy. In corporation of MCM-41 in a (PEO+LiAsF<SUB>6</SUB>) polymer electrolyte facilitates salt dissociation, enhances ion conductivity, and improves miscibility between organic and inorganic moieties. The scanning electron microscopy (SEM) photographs indicates the electrolytes are miscible and homogeneous up to 10wt.% of MCM-41, and an optimized conductivity is found at this composition (10wt.%). However, at higher weight ratios (>10wt.%), the Li/MCM-41-rich domain developed, and the conductivity decreased with increasing mesoporous material. The electrochemical performance of fabricated electrochemical cells of configuration Li/(PEO+LiAsF<SUB>6</SUB>+MCM-41)/(MoO<SUB>3</SUB>+C+PTFE) were investigated.</P>
<i>SPITZER</i>PARALLAX OF OGLE-2015-BLG-0966: A COLD NEPTUNE IN THE GALACTIC DISK
Street, R. A.,Udalski, A.,Novati, S. Calchi,Hundertmark, M. P. G.,Zhu, W.,Gould, A.,Yee, J.,Tsapras, Y.,Bennett, D. P.,Jørgensen, U. G.,Dominik, M.,Andersen, M. I.,Bachelet, E.,Bozza, V.,Bramich, D. M American Astronomical Society 2016 The Astrophysical journal Vol.819 No.2
<P>We report the detection of a cold Neptune m(planet) = 21 +/- 2M(circle plus) orbiting a 0.38M(circle dot) M dwarf lying 2.5-3.3 kpc toward the Galactic center as part of a campaign combining ground-based and Spitzer observations to measure the Galactic distribution of planets. This is the first time that the complex real-time protocols described by Yee et al., which aim to maximize planet sensitivity while maintaining sample integrity, have been carried out in practice. Multiple survey and follow. up teams successfully combined their efforts within the framework of these protocols to detect this planet. This is the second planet in the Spitzer Galactic distribution sample. Both are in the near. to. mid-disk and are clearly not in the Galactic bulge.</P>
CIRCUMBINARY PLANETS ORBITING AROUND POST COMMON ENVELOPE BINARIES
ZHU, L.Y.,QIAN, S.B.,LIAO, W.P.,LAJUS, E. FERNANDEZ,SOONTHORNTHUM, B.,ZHAO, E.G.,LIU, L. The Korean Astronomical Society 2015 天文學論叢 Vol.30 No.2
Most of the stars in the Galaxy are in binary systems. Binaries should be possible as the hosting stars of planets. Searching for planetary companions to binaries, especially evolved close binary stars, can provide insight into the formation and the ultimate fate of circumbinary planets and shed light on the late evolution of binary stars. In order to do this, we have chosen some post common envelope binaries including sdB-type eclipsing binaries and detached WD+dM eclipsing binaries as our targets and monitored them for several years. In this paper, we will present some of our new observations and results for three targets, NSVS 07826147, NSVS14256825 and RR Cae.
Henderson, Calen B.,Poleski, Radosław,Penny, Matthew,Street, Rachel A.,Bennett, David P.,Hogg, David W.,Gaudi, B. Scott,Zhu, W.,Barclay, T.,Barentsen, G.,Howell, S. B.,Mullally, F.,Udalski, A.,Szyma Astronomical Society of the Pacific 2016 Publications of the Astronomical Society of the Pa Vol.128 No.970
<P>K2's Campaign 9 (K2C9) will conduct a similar to 3.7 deg(2) survey toward the Galactic bulge from 2016 April 22 through July 2 that will leverage the spatial separation between K2 and the Earth to facilitate measurement of the microlens parallax pi(E) for greater than or similar to 170 microlensing events. These will include several that are planetary in nature as well as many short-timescale microlensing events, which are potentially indicative of free-floating planets (FFPs). These satellite parallax measurements will in turn allow for the direct measurement of the masses of and distances to the lensing systems. In this article we provide an overview of the K2C9 space-and ground-based microlensing survey. Specifically, we detail the demographic questions that can be addressed by this program, including the frequency of FFPs and the Galactic distribution of exoplanets, the observational parameters of K2C9, and the array of resources dedicated to concurrent observations. Finally, we outline the avenues through which the larger community can become involved, and generally encourage participation in K2C9, which constitutes an important pathfinding mission and community exercise in anticipation of WFIRST.</P>