298 research outputs found
Control of oxidation in butteroil
The objective of this study was to evaluate the effectiveness of alpha tocopherol and ascorbyl palmitate as antioxidants for butteroil stored at 45° C.
Butteroil samples were treated with ascorbyl palmitate and alpha tocopherol separately and in combination. Treatment levels were: 100 ppm alpha tocopherol, 200 ppm alpha tocopherol, 500 ppm ascorbyl palmitate, 500 ppm ascorbyl palmitate plus 100 ppm alpha tocopherol and 500 ppm ascorbyl palmitate plus 200 ppm alpha tocopherol. The control was butteroil without any additives. The treated samples were stored at 45° C in an oven which excluded light.
At intervals of 15, 30, 45 and 60 days the samples were tested subjectively and objectively by sensory panels and measuring the peroxide value, respectively.
This study showed that alpha tocopherol did not retard oxidation in the butteroil but acted as a pro-oxidant. Ascorbyl palmitate and combinations of alpha tocopherol and ascorbyl palmitate successfully retarded the oxidation
A Performance Measurement Framework For UK Contact Centres
Contact centres are used in a wide range of contexts by organisations and play a crucial role in shaping customer experience and managing customer relationship. Performance measurement is a crucial practice for contact centres that are committed to delivering superb customer service and keeping competitive advantages. Despite its importance, there are no studies that systematically review the performance measurement practice in the contact centre industry. This paper aims to develop a key performance indicator (KPI) framework for contact centres to evaluate and benchmark performance. A KPI framework consisting of six dimensions was developed from the literature and testedby means of a web based survey with Call Centre Focus magazine (CCF),ant authoritative and well-known call centre magazine in the UK. The survey was sent to 10070 contact centre professionals and had a response rate of 3.9%. The results were analysed with SPSS and factor analysis was used to validate the framework. The analysis showed the ten most important KPIs and exploratory factor analysis extracted ten factors. They confirmed the original framework to a large extent and also revealed new insights amongst the dimensions and variables. The framework has significant managerial implications and could be used as a guideline for contact centres for performance measurement. The framework could also be used to benchmark against other companies
A Comparative study on Ferro-fluid Lubricated Porous Journal Bearing
This research considered hydrodynamic theory on ferro-fluid flow models such as R. E. Rosensweig model and Jenkins model for axially undefined journal bearing with porous attached at the inner surface (i.e. on the journal). In this study, the variable external magnetic field is assumed. The expressions of (non-dimensional) pressure and load-carrying capacity are obtained. The values of load capacity for both models are calculated for various parameters like porous thickness, slip velocity, squeeze velocity, permeability, and eccentricity. Also, calculated load capacity by cons idering porous structure models like the globular sphere model and capillary fissures model. Based on the obtained results, the globular sphere model gives much better performance for load capacity rather than the capillary fissures model. From the study, it is suggested that to design the journal bearing, globular sphere model of porous structure should be preferred over the capillary fissures model. Also, for the better performance of the journal bearing, the choice of fluid-flow model depends on the values of parameters
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Loss of Immunohistochemical Reactivity in Association With Handling-Induced Dark Neurons in Mouse Brains.
The handling-induced dark neuron is a histological artifact observed in brain samples handled before fixation with aldehydes. To explore associations between dark neurons and immunohistochemical alterations in mouse brains, we examined protein products encoded by Cav3 (neuronal perikarya/neurites), Rbbp4 (neuronal nuclei), Gfap (astroglia), and Aif1 (microglia) genes in adjacent tissue sections. Here, dark neurons were incidental findings from our prior project, studying the effects of age and high-fat diet on metabolic homeostasis in male C57BL/6N mice. Available were brains from 4 study groups: middle-aged/control diet, middle-aged/high-fat diet, old/control diet, and old/high-fat diet. Young/control diet mice were used as baseline. The hemibrains were immersion-fixed with paraformaldehyde and paraffin-embedded. In the hippocampal formation, we found negative correlations between dark neuron hyperbasophilia and immunoreactivity for CAV3, RBBP4, and glial fibrillary acidic protein (GFAP) using quantitative image analysis. There was no significant difference in dark neuron hyperbasophilia or immunoreactivity for any protein examined among all groups. In contrast, in the hippocampal fimbria, old age seemed to be associated with higher immunoreactivity for GFAP and allograft inflammatory factor-1. Our findings suggest that loss of immunohistochemical reactivity for CAV3, RBBP4, and GFAP in the hippocampal formation is an artifact associated with the occurrence of dark neurons. The unawareness of dark neurons may lead to misinterpretation of immunohistochemical reactivity alterations
Gender differences in clinical profile and risk factors for obstructive sleep apnea in a public health care setting
Background: Obstructive Sleep Apnea Syndrome is an increasingly prevalent chronic condition which is, unfortunately, still underdiagnosed. It is peculiarity of this noisy disease that it announces itself to everyone within earshot-except its victims. The intermittent hypoxemia and sleep fragmentation caused by recurrent episodes of upper airway collapse are chiefly responsible for the pathophysiology associated with this condition.Methods: The present study was carried out from January 2014 to August 2015 in a tertiary care government hospital. In this comparative hospital based study 94 patients with Sleep Disordered Breathing and >13 years of age were included. There were 58 males and 36 females in the present study. All patients who satisfied inclusion criteria were studied after taking written consent. Collection of data was carried out with predesigned proforma.Results: Of all the 94 patients who underwent overnight Polysomnographic study,80 patients were diagnosed as Obstructive Sleep Apnea. Risk factor of OSA have gender differences in their distribution. Female patient is older with significantly higher mean age compared to male patients with OSA (52.9 vs 44.7 years). Females are having significantly higher BMI compared to male OSA(38.2 vs 31.5) but neck circumference is higher in males (44.7 Vs 38.1 cm).The prevalence of Smoking and Alcoholism as a risk factor is higher in male patients while endocrine disorder are more common in females. ENT abnormalities are present more or less equally in both the sexes.Conclusions: In the present study females’ patients with Obstructive Sleep Apnea were mainly Older, Obese, Postmenopausal and endocrine disorder like Hypothyroidism were more prevalent while male patients were Smoker, Alcoholic and had higher neck circumference
The Female Athlete
The female athlete has today became an accepted part of sports in elementary school, junior high, senior high, and college. This chapter covers various aspects of the prepubertal and pubertal female athlete. An historical perspective will be presented and selected comments provided on psychological and physiologic aspects of the female athlete. Concepts of adolescent gynecology are reviewed, including breast concerns and menstrual dilemmas in relation to sports activity. Exercise during pregnancy is also considered. Iron deficiency anemia and stress urinary incontinenc
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