Hollywood studio filmmaking in the age of Netflix: a tale of two institutional logics

Journal of Cultural Economics - Online streaming services are challenging long-standing decision-making processes in the traditional motion picture industry, thus placing Hollywood major studios at...     

Effect of exogenous L-ornithine L-aspartate on ethanol induced testicular injury in Wistar rats

To investigate reversibility of ethanol induced testicular injuries on treatment with L-ornithine-L-aspartate, male Wistar rats were treated with ethanol (1.6g/kg b.wt/day) and L-ornithine- L-aspartate (200mg/kg b.wt/ day) for 4 weeks. L-ornithine-L-aspartate effectively prevented the ethanol induced body and testes weight reduction; changes in testicular weight well correlated with body weight. Drug exhibited an ability to counteract ethanol induced oxidative challenge as it effectively reduced testicular TBARS and increased tissue ascorbic acid, GSH and activities of superoxide dismutase, catalase, GSH-Red and Se-GSH-Px. However the drug didn’t show promising effect on inhibitory effect of ethanol on testicular D5, 3-beta and 17-beta HSD (hydroxy steroid dehydrogenase).     

Optimal educational climate among students at risk: the role of teachers’ work attitudes

European Journal of Psychology of Education - One of the most significant phenomena among students at risk is low resilience. However, very little is known about teacher-related factors that affect...     

Demonstration model of self inductance using relay

Using an electrical component like a relay, the phenomenon of self inductance caneasily be demonstrated to undergraduate students. By wiring simple electrical components like relay, neon bulb and a DC power supply, intermittent back electromotive force (emf) can be generated in the range from 60 to 100 volt. The glowing of neon bulb provides visual evidence for the generation of large back emf due to self inductance.     

Story of superconductivity

Electricity is carried through metallic wires, called conductors. In the process, electrons move through metallic conductors that offer resistance (the value depends on the particular metal used), to the passage of electrons. This leads to the production of heat and loss of energy. This heating process is utilised in many electrical devices. However, for transmission of electrical energy from the power plants to the user and in many other applications, it would be a great boon if no energy was lost to resistance. The discovery of superconductivity by Heike Kamerlingh Onnes in 1911 at Leiden, offered a glimmer of hope to make this dream possible. It was a discovery totally unexpected at that time, and we owe this discovery to the painstaking and methodical investigations of Onnes–first to produce very low temperatures, and then measure properties of materials at these freezing temperatures.     

The experiment of Michelson and Morley

Light was assumed to propagate in a medium called ether which was all pervading and stationary. Earth’s motion through ether was expected to have an effect on the velocity of light in the direction of the relative motion by the law of addition of velocities. Michelson–Morley experiment used an interferometric technique to detect this effect and got a null result, which was the first strong evidence against existence of ether and eventually had a natural explanation in special theory of relativity.     

发明工作室：大学的创客空间及文化

创造力、发明和创新被视为工程学教育的中心支柱。然而,很多大学却缺少培育开放式设计-建造项目的环境。大学里的制造空间和原型空间是典型的“加工车间”,这些场所的使用者多数是专业人员或一些受过高级培训的学生,而非普通学生。为了使设计和原型更加贴合工程经验,佐治亚理工学院建立了发明工作室。这是一个配备最先进的综合性设备、可以免费使用、与学习工厂作用相似的创客空间,采用“自下而上”的管理方法,主要由一个本科生管理团队在学校行政管理部门和相关章程指导下集中运营和管理,支持各种项目类型的研究。尽管其最初只是专门为进行课程的顶层设计而创立,发明工作室现在已展现出强大的生命力,拥有了自己的特色文化,其意义已远超过一个顶层原型设计实验室。发明工作室的组织管理、设施建设、安全保证、资金筹备等方式,值得其他创造类似环境的学校借鉴,其设备、基础设施以及文化转型的经验表明,实践与设计-建造教育的价值在于可以持续有效地促进工科学生创新、创造和创业。     

Study of glycemic profile of Cajanus cajan leaves in experimental rats

The present study deals with the evaluation of glycemic profile of aqueous extract of Cajanus cajan leaves in streptozotocin induced type 2 diabetic rats. Single oral administration of graded doses of aqueous extract of Cajanus cajan leaves showed significant increment of 14.3 % in fasting blood glucose levels of normal rats. The sub diabetic and mild diabetic models have also shown hyperglycemic effect from the same variable doses of the extract. The dose of 1000 mg/kg showed the maximum rise of 17.1, 71.2 and 50.7 % in Blood glucose levels of normal, sub and mild diabetic rats respectively during glucose tolerance test. The study of leaves was taken into consideration on the basis of earlier reported hypoglycemic activity of Cajanus cajan seeds. However the results observed were found just opposite and therefore it may be useful in controlling hypoglycemia, occasionally caused due to excess of insulin and other hypoglycemic drugs.     

Biochemical changes during exchange transfusion in hyperbilirubinemia in term newborn babies

Double volume (170 ml/kg body weight) exchange transfusion was done in 52 term infants in the first week of life for neonatal hyperbilirubinemia. The M:F ratio was 1.08:1 and 37 (71.1%) babies were of low birth weight. Causes of jaundice were hemolytic in 46.2% and non-hemolytic in 41.3% cases; in 13.5% babies no cause of jaundice could be found. After exchange transfusion a fall of 14.6% and 47.4% was observed in the hemoglobin and serum bilirubin levels respectively. There was significant (p=0.0414) rise in the mean mid exchange and post-exchange serum sodium levels as compared to pre-exchange values and it was found to be due to higher donor's serum sodium levels (p=0.007). There was no effect on the serum potassium levels during or after ET. In general serum calcium levels significantly increased at mid-exchange period (p=0.0029) but post-exchange levels were same as pre-exchange. Donor's serum calcium level had no effect on the infant's serum calcium level (p=0.993). There was no change in the serum phosphate and blood urea levels during and after exchange-transfusion. The plasma glucose was significantly raised during and after ET and plasma glucose of the donors had significant effect on the infant's plasma glucose levels (p=0.043). Similarly plasma osmolality also showed significant increase during and after ET which was due to the effect of donor's plasma osmolality (p=0.007).