Antioxidant activity ofcurculigo orchioides in carbon tetrachloride—induced hepatopathy in rats

In this study antioxidant activity of methanol extract of rhizomes ofCurculigo orchioides (MEC) was investigated using carbon tetrachloride (CCl₄)-intoxicated rat liver as the experimental model. The hepatotoxic rats were administered MEC for 90 days (daily, orally at the dose of 70 mg per kg body weight). Lipid peroxidation (LPO) in CCl₄-intoxicated rats was evidenced by a marked increment in the levels of thiobarbituric acid reactive substances (TBARS) and diene conjugates (CD), and also a distinct diminution in glutathione (GSH) content in the liver. In CCl₄+MEC—treated rats these biochemical parameters attained an almost normal level. The decreased activity of antioxidant enzymes, such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX) and glutathione reductase (GRD) in CCl₄—intoxicated rats, and its retrieval towards near normalcy in CCl₄+MEC—administered rats revealed the efficacy of MEC in combating oxidative stress due to hepatic damage. Elevated level of glutathione transferase(GTS) observed in hepatotoxic rats too showed signs of retuming towards normalcy in MEC co-administered animals, thus corroborating the antioxidant efficacy of MEC. The findings provide a rationale for further studies on isolation of active principles and its pharmacological evaluation.     

Comparison of Urinary Total Proteins by Four Different Methods

The total proteins in human urine have been compared by sulfosalicylic acid, sulfosalicylic acid with sodium sulphate and trichloroacetic acid methods with pyrogallol red molybdate method as there are no studies found quantifying imprecision and bias components. Fresh urine of 36 patients was analyzed by four methods. Imprecision and inaccuracy were determined by repeated analysis and method comparison studies using correlation plots, Bland and Altman, and Passing and Bablok regression analyses respectively. The coefficient of variation was 5.07 % for pyrogallol red molybdate; 6.84 % for sulfosalicylic acid; 3.97 % for sulfosalicylic acid with sodium sulphate and 5.93 % for trichloroacetic acid methods. Bland and Altman analysis showed a bias of 5.8, 1.7 and ?5.4 for pyrogallol red molybdate versus sulfosalicylic acid, sulfosalicylic acid with sodium sulphate and trichloroacetic acid methods respectively. Passing and Bablok regression revealed a constant bias for pyrogallol red molybdate versus all turbidimetric methods but a proportional bias only with trichloroacetic acid method. Sulfosalicylic acid with sodium sulphate method is preferred to sulfosalicylic acid and trichloroacetic acid methods.     

Industry,academe, and the values of undergraduate engineers

This paper contributes to research about organizational effects on the socialization of undergraduates and the formation of engineers' values by examining the effects of exposure to academic and industrial work, in the form of cooperative employment and undergraduate research, on the educational experiences, job values, and life objectives of engineering students. Using data from a questionnaire survey conducted in the spring of 1990, we found that both programs strongly influenced participants' skills, job values, and life objectives, even when social background, academic performance, reasons for attending college, parental socialization, and other collegiate and noncollegiate variables were controlled. Cooperative employment more strongly influenced students' skills and had a greater effect on their career decisions, but research experience had a surprisingly powerful influence on values and life objectives, particularly the value placed on receiving peer recognition and influencing the political structure.     

In amongst the glitter and the squashed blueberries: crafting a collaborative lens for children’s literacy pedagogy in a community setting

ABSTRACT

In this article, we bring together relational arts practice (Kester, 2004) with collaborative ethnography (Campbell and Lassiter, 2015) in order to propose art not as a way of teaching children literacy, but as a lens to enable researchers and practitioners to view children’s literacies differently. Both relational arts practice and collaborative ethnography decentre researcher/artist expertise, providing an understanding that “knowing” is embodied, material and tacit (Ingold, 2013). This has led us to extend understandings of multimodal literacy to stress the embodied and situated nature of meaning making, viewed through a collaborative lens (Hackett, 2014a; Heydon and Rowsell, 2015; Kuby et al, 2015; Pahl and Pool, 2011). We illustrate this approach to researching literacy pedagogy by offering a series of “little” (Olsson, 2013) moments of place/body memory (Somerville, 2013), which emerged from our collaborative dialogic research at a series of den building events for families and their young children. Within our study, an arts practice lens offered a more situated, and entwined way of working that led to joint and blurred outcomes in relation to literacy pedagogy.     

The Dudley Challenges: virtual balloon journeys and real learning

The Dudley Challenges were developed to celebrate the millennium and the first year of the Dudley Grid for Learning. Three Challenges, Challenge 2000 the original resource, Challenge Europa and Junior Trek, are based on virtual balloon journeys, visiting a series of interesting cultural centres. Access to each centre visited is by solving a series of difficult, cross‐curricula problems that deliver a range of higher order learning experiences. Creativity, imagination, initiative, perseverance as well a range of ICT skills are promoted, developed and celebrated as key elements of the challenge.

Die Dudley Herausforderungen: Virtuelle Ballonreisen und wirkliches Lernen

Die Dudley Herausforderungen wurden zur Milleniumsfeier und zum ersten Jahrestag des “Dudley Grid of Learning” entwickelt. Die drei Herausforderungen, Challenge 2000 die Original Ressource; Herausforderung Europa und Junior Treck beruhen auf einer virtuellen Ballonreise, in deren Verlauf eine Serie interessanter kultureller Zentren besucht werden. Der Zugang zu jedem besuchten Zentrum ist nur nach Lösen einer Reihe schwieriger Allgemeinbildungsfragen, die einen hohen Lernzuwachs liefern, möglich. Kreativität, Einbildungskraft, Initiative, Durchhaltevermögen ebenso wie Computerkompetenz werden gefördert, entwickelt und gefeiert als Schlüsselelemente der Herausforderung.

Les Challenges Dudley :les voyages virtuels en ballon et l’apprentissage réel

Les Challenges Dudley ont été crées pour célébrer le millénaire et la première année de la Grille d’Apprentissage Dudley.Trois de ces Challenges, le Challenge 2000 la resource –mère,le Challenge Europa et Junior Trek sont fondés sur des voyages en ballon virtuels qui permettent la visite de centres culturels pleins d’intérêt.Pour accéder à chaque centre et le visiter , il faut résoudre une série de problèmes difficiles, interdisciplinaires qui offrent une gamme d’aventures apprenantes de premier ordre. On stimule,on développe et on célèbre ainsi la créativité, l’imagination,l’initiative la persévérance ainsi qu’un éventail de compétences en TIC qui sont les éléments‐clés du Challenge.     

Predictive ability of the medicine ball chest throw and vertical jump tests for determining muscular strength and power in adolescents

This study examined the predictive ability of the medicine ball chest throw and vertical jump for muscular strength and power in adolescents. One hundred and ninety adolescents participated in this study. Participants performed trials of the medicine ball chest throw and vertical jump, with vertical jump peak power calculated via an estimation equation. One-repetition maximum and peak power for the chest press and leg press were assessed using pneumatic exercise machines. The medicine ball chest throw strongly correlated with chest press one-repetition maximum and peak power, while the vertical jump peak power strongly correlated with leg press one-repetition maximum and peak power. The predictive ability of medicine ball chest throw was better than vertical jump peak power for muscular strength and power when controlling for sex, age, height, weight, and maturation, and was not affected by involvement in sports. Results show good predictive ability of the medicine ball chest throw for muscular strength and power in adolescents, while predictable ability of vertical jump peak power is weakened when other factors are taken into account.     

Physiological implications of preparing for a natural male bodybuilding competition

This study aimed to describe the body composition and physiological changes which take place during the in-season and recovery periods of a group of natural bodybuilders. Natural male bodybuilders (n?=?9) were assessed 16 (PRE16), 8 (PRE8), and 1 (PRE1) week(s) before, and 4 (POST4) weeks after a bodybuilding competition. Assessments included body composition, resting metabolic rate (RMR), serum hormones, and 7-day weighed food and training diaries. Change in parameters was assessed using repeated-measures analysis of variance. Dietary protein intake remained high throughout the study period (2.8–3.1?g?kg^?1?d^?1). Fat mass (FM) was significantly reduced from PRE16 to PRE1 (8.8?±?3.1 vs. 5.3?±?2.4?kg, P?.01). There was a small decrease in lean mass (LM) from PRE8 to PRE1 (71.8?±?9.1 vs. 70.9?±?9.1?kg, P?P?>?.05). Large reductions in total and free testosterone (16.4?±?4.4 vs. 10.1?±?3.6?nmol?L^?1, P?. 116.8?±?76.9?pmol?L^?1, P?. 19.9?±?7.6?nmol?L^?1, P?. 72.5?±?8.5?kg, P?. 25.4?±?9.3?nmol?L^?1, P?相似文献   

The Hammer and the Carpenter: Lessons From the Field for Effective Professional Development by Teaching Artists

This article draws on lessons from the field to offer further guidance for arts organizations and teaching artists leading professional development.