1,609 research outputs found

    Carcass yield and characteristics of Karadi lambs as affected by dietary supplement of rumen undegradable nitrogen fed with Nigella sativa

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    The objective of this work was to investigate the effect of two levels of rumen undegradable nitrogen (7 and 10 g UDN/kg DM) fed with two levels of Nigella sativa (0 and 7.5 g NS/ kg DM) supplementation to rations of karadi lambs on carcass characteristics, using 2 x 2 factorial experiment. Sixteen individual Karadi male lambs were used (four lambs for each treatment). They were weighing approximately 34 kg live weight and 7 months old. The diets were formulated to be given a 40% NaOH-treated barley straw DM to 60% concentrates DM. At the end of feeding trial the lambs were slaughtered after over night with feeding draw. Differences in daily nutrients intake among treatments were not statistically significantly. The UDN and total N intake were followed the intended treatments composition (P < 0.01). Live weight gain was not significantly affected by levels of UDN and NS supplementation. Slaughter body weight, hot and cold carcass weights and killing out proportion were not significantly affected by both NS supplementation and levels of UDN. Moreover, no differences in leg cut tissue (lean, subcutaneous fat: intramuscular fat and bone) among treatments. The main wholesale cuts weights were not significantly different among treatments. The differences in fat-tail weights between the NS and UDN treatments were not statistically significant.Key words: Lambs, rumen undegredable nitrogen, Nigella sativa, carcass characteristic

    Design and synthesis of a fragment set based on twisted bicyclic lactams

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    Current fragment sets tend to be dominated by flatter molecules, and their shape diversity does not reflect that of the fragments that are theoretically possible. The design and synthesis of a set of bridged fragments containing a bridgehead nitrogen is described. Many of these fragments contain twisted lactams whose modulated electronic properties may present unusual opportunities for interaction with target proteins. The demonstrated novelty, three-dimensionality and molecular properties of the set of 22 fragments may provide valuable, and highly distinctive, starting points for fragment-based drug discovery

    Anti-Inflammatory Activity of Crude Saponin Extracts from Five Nigerian Medicinal Plants

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    Crude saponin extracts of five medicinal plants used in the treatment of inflammatory diseases like rheumatoid arthritis, gout and haemorrhoids were screened for anti-inflammatory activity using carrageenan-induced rat paw oedema test. These plants were the whole plant of Schwenkia americana Linn (WSA), the rhizomes of Asparagus africanus Lam (RAA), the leaves of Dichrostachys cinerea Linn (LDC), the stem bark of Ficus iteophylla Miq (BFI) and the leaves of Indigofera pulchra Willd (LIP). A modify traditional method of crude saponins extraction was used to give the following percentage yields: WSA-2.74%, RAA-3.59%, LDC-1.62%, BFI-0.81% and LIP-1.57% respectively. Thin-layer chromatography was used to identify the type of saponins present in the extracts. The acute toxicity study of the crude saponin extracts in mice gave the following intraperitoneal LD50: WSA-471.2mg/kg, RAA- 1264.9mg/kg, LDC-1264.9mg/kg, BFI-118.3mg/kg and LIP-1264.9mg/kg respectively.  The antiinflammatory study of the extracts showed statistically significant (P<0.05) decreases in the rat paw-oedema as compared to the control. The percentage inhibitions of the extracts after four hours were as follow: WSA-61%, RAA-55%, LDC-72%, BFI-66% and LIP-40% respectively. These values were found to be comparable to that of ketoprofen-63%. The study showed that the antiinflammatory properties attributable to these plants may be due to their saponins contents.Keywords: - Asparagus africanus, Dichrostachys cinerea, Ficus iteophylla, Indigofera pulchra, Schwenkia americana, Saponin,Anti-inflammatory activity, Carrageenan, TLC

    Salidroside as a Novel Protective Agent to Improve Red Blood Cell Cryopreservation.

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    Glycerol and trehalose have been widely examined as protective agents in the cryopreservation of red blood cells (RBCs). However, the effectiveness of these reagents alone on cell viability is moderate. Here, the addition of salidroside attenuated oxidative damage of sheep RBCs prior to and post cryostorage. The supplementation of salidroside to the cryopreservation media containing 10% glycerol improved RBC survival by approximately 61.1±4.8% vs 37.9±4.6%. A smaller effect was seen in RBCs cryopreserved in 300 mM trehalose where the addition of salidroside improved survival by 7.6±0.3%. Furthermore, the addition of salidroside to cold storage solution demonstrated a significant reduction of haemolysis after 4 days for RBCs loaded with either glycerol or trehalose, compared to cells incubated without salidroside. RBCs survival was 2-fold greater following freezing in trehalose, compared with glycerol. After 10 days, salidroside enabled a lower haemolysis of 16.7±1.3% compared to 29.0±8.4% for cells incubated without salidroside. However, salidroside had no effect on RBCs which had been frozen in glycerol as the resulting haemolysis rate by day 10 was approximately 60%. Salidroside increased glutathione reductase activity and decreased lactate dehydrogenase activity. Furthermore, it led to reduced carbonylation of proteins in both glycerol and trehalose loaded cells. Finally, no effect on lipid peroxidation was found in the glycerol loaded RBCs although this was reduced in RBCs loaded with trehalose and salidroside. The present findings confirm the potential use of salidroside as a novel protective agent in cryopreservation and refrigerated storage of sheep RBCs.King AbdulAziz City for Science and Technology (KACST), NASAThis is the final version of the article. It first appeared from the Public Library of Science via https://doi.org/10.1371/journal.pone.016274

    Seismic Performance of Exposed Column-Base Plate Connections with Ductile Anchor Rods

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    This paper presents full-scale experiments and computational analyses on exposed column-base plate connections with ductile anchors. The aim is to examine the seismic performance of these connections for their prospective use as weak bases, wherein steel moment frames are designed to concentrate inelastic rotations in the base connections rather than in the connected columns. The connections feature upset thread anchor rods in which the threads are milled to a smooth shank, providing a designated stretch length over which inelastic deformations may be concentrated. The shank is frictionally isolated from the footing using polyethylene tape. The four full-scale experiments investigate the effects of axial force, rod diameter, and rod material grade. The test specimens withstand (without anchor rod failure) the application of two Applied Technology Council-the Joint Venture partners of the Structural Engineers Association of California, the Applied Technology Council, and the Consortium of Universities for Research in Earthquake Engineering (ATC-SAC) protocols applied consecutively (each to drift amplitudes of 5%), followed by additional cycles to 6.5% drift amplitude. Complementary line element-based and continuum finite-element simulations are conducted to examine to what extent the experimentally observed response may be generalized to untested configurations. Implications for design are summarized, along with the limitations of the study

    National Human Resource Policy Formulation and Implementation: A Fiduciary Trust and a Duty on Governments

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    The consequential effect of national policy formulation and implementation regarding human resource management (HRM) of private and public institutions have been presented in this research paper by analyzing samples taken from national policies on employment and environment in the context of Republic of Maldives. The analysis has been presented basically through two perspectives. From first perspective, the effect of national policies on HRM has been viewed through the external factors affecting HRM, rather than the internal factors of HRM. On the contrary, the second perspective involves the effects of national policies on HRM internally within the legislations related to employment as well as externally through environmental factors. The overall focus of the above said two perspectives is to analyze how national policy-making shortcomings related to human resource management (HRM) within any given country can be disruptive for HRM endeavours of not only private entities but public entities as well, especially when such policies are not in line with the respective HRM needs of such institutions. The findings would demonstrate the outcomes of shortcomings by governments to properly administer and implement national policies regarding human resource and how this could totally jeopardize the well-established human resource management procedures and endeavors of private and public institutions. The underlying reason for the effect of public policy on HRM of institutions has been identified and analyzed as the existence of the fiduciary relationship between governments and citizens whereby the institutions managed by the citizens are legally bound by any defective public policies

    Idiopathic pericardial effusion in 2 year old labrador managed with ultrasound-guided pericardiocentesis: Case report

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    A two-year old, 38kg-wt male Labrador was presented for management because of progressive exercise intolerance. At presentation, rectal temperature was 38.5°C, pulse rate was 135 beats per minute (but weak). There was ascites along with oedema of the extremities. The heart sound was muffled and pulsus paradoxus was very mild. The patient was well hydrated. Thoracic radiography revealed a globoid shaped heart occupying most of the equatorial thoracic volume; there was loss of details of cardiac silhouette and there was dorsal deviation of trachea at carina. Ultrasonography revealed a distinct epicardium, pericardium and a very wide anechoic space in between. Blood picture was within normal findings. Idiopathic chronic pericardial effusion was diagnosed. Ultrasound-guided pericardiocentesis was carried out using a 16 gauge over the needle catheter attached to a 3-way stopcock and a 20mls syringe; about 65mls of clear effusate was aspirated. Laboratory analysis of the effusate revealed that it was a transudate. The patient was placed on 3mg/kg furosemide, twice daily for 5 days and the patient returned to gradual exercise during hospitalization. Oedema of the extremities and ascities decreased, the appetite improved and the dog became more active. Thoracic radiography fourth week post pericardiocentesis revealed a normal cardiac silhouette. The cause of pericardial effusion was not known

    Sexual assault against women at Osogbo Southwestern Nigeria

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    Background: Sexual assault against women is common all over the world. However, reliable data on the subject in developing countries including Nigeria is not available.Objective: To review the patterns of sexual violence against women treated at the hospital over a 7‑year period.Materials and Methods: Review of hospital records of victims of sexual assault who presented at the hospital from 1 January 2003 to 31 December 2009. Data obtained were analyzed using descriptive statistics and Chi squire test.Results: Sexual assault cases constituted 2.1% of female consultation outside pregnancy during the period under study while proportion of cases increased over the years under review. Mean age of the victims was 15.8 (SD 8.1) years ranging from 5 to 48 years. Most (73.7%) were less than 18 years while 93.2% were single (never married). About 81% of the victims less than 18 years were sexually abused in the day time. Majority (79.6%) knew their assailant. About 40% of the victims presented within 24 h of sexual abuse but none had postexposure prophylaxis.Conclusion: Sexual assault among women is an important health problem in this environment. There is need for hospital based management protocol.&#160

    Allogeneic cell therapy bioprocess economics and optimization: downstream processing decisions

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    To develop a decisional tool to identify the most cost effective process flowsheets for allogeneic cell therapies across a range of production scales

    Evaluation of pressed shredded empty fruit bunch (EFB)-palm oil mill effluent (POME) anaerobic sludge based compost using Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR) analysis

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    Pressed-shredded empty fruit bunches (EFB) and palm oil mill effluent (POME) anaerobic sludge from a 500 m3 closed anaerobic digester system was utilized for the co-composting treatment. Scanning electron microscopy (SEM) analysis showed that the shredding-pressing treatment on EFB gave better results in removing the debris and silica bodies as compared to only shredding treatment. However, similar characteristics were detected in both physically-treated EFB samples by Fourier transform infrared (FTIR) analysis, mainly in the regions of 900 to 1740 and 2800 to 3400 cm-1. After the anaerobic digestion of fresh raw POME, the protein origin (Amide I) band appeared in the POME anaerobic sludge. Besides, the band intensities at 2925 and 2855 cm-1 which attributed to the composition of fat and lipid was decreased. The maturity of the composting material after 40 days of treatment was detected by the appearance of the nitrate band at 1376 cm-1 and the results corresponded to the final C/N ratio of 12.4. Solid state 13C CP/MAS nuclear magnetic resonance (NMR) was also used to reveal the characteristic changes of pressed-shredded EFB-POME anaerobic sludge based compost.Key words: Empty fruit bunch, palm oil mill effluent, compost
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