Charged Vaidya-Tikekar model for super compact star

In this work, we explore a class of compact charged spheres that have been tested against experimental and observational constraints with some known compact stars candidates. The study is performed by considering the self-gravitating, charged, isotropic fluids which is more pliability in solving the Einstein-Maxwell equations. In order to determine the interior geometry, we utilize the Vaidya-Tikekar geometry for the metric potential with Riessner-Nordstrom metric as an exterior solution. In this models, we determine constants after selecting some particular values of M and R, for the compact objects SAX J1808.4-3658, Her X-1 and 4U 1538-52. The most striking consequence is that hydrostatic equilibrium is maintained for different forces, and the situation is clarified by using the generalized Tolman-Oppenheimer-Volkoff (TOV) equation. In addition to this, we also present the energy conditions, speeds of sound and compactness of stars that are very much compatible to that for a physically acceptable stellar model. Arising solutions are also compared with graphical representations that provide strong evidences for more realistic and viable models, both at theoretical and astrophysical scale.Comment: 13 Pages, 5 Figures and 4 Table

Individualized dosing of oral propranolol for treatment of infantile hemangioma: a prospective study

Introduction: infantile hemangioma is the most common benign tumor in infancy. Currently, oral propranolol is the treatment of choice for infantile hemangioma, but there is no consensus when it comes to its recommended dosage for this condition. Hence this study was conducted to find out the appropriate dosage of oral propranolol for treatment of infantile hemangioma. Methods: a prospective study was conducted on 25 patients with infantile hemangioma, who were treated with gradually increasing dose of propranolol starting from a lower dose of 1mg/kg/day. Results: 17/22(76%) patients showed regression of the tumor at the dose of 1- 1.5 mg/kg/d. 5/22(24%) patients were unresponsive to the treatment with the lower dose and they did not respond even with the gradually escalated dose of 3-4 mg/kg/day. Conclusion: propranolol in a lower dose of 1-1.5 mg/kg/day is safe and efficacious in the treatment of infantile hemangioma and the lesions which do not show initial response to the lower dose are unlikely to respond to the higher dose of 3-4 mg/kg/day

ANTI-OXIDANT POTENTIAL OF BAEL {AEGLE MARMELOS (L) CORR} FRUIT IN EXPERIMENTAL GASTRIC ULCERATED RAT

The present investigation of unripe fruit of A. marmelos was done to the study their antioxidant and free radical scavenger activity in experimental gastric ulcerated animals. The rats were given EtOH extract of herbal drug Aegle marmelos fruit extract (50 to 200 mg/kg) and control drug ranitidine (50 mg/kg) orally, twice daily for 5 days and on day 6 of experiment, 1 hour prior to subjecting the animal to stress or necrotizing concentration of respective irritants. Rats were then subjected to CRS in the absence and presence of cytoprotective irritant or herbal drugs. The fundic part of the stomach is homogenized (5%) in ice cold 0.9% saline with a Potter-Elvehjem glass homogenizer for 30 sec. the homogenate were centrifuged at 8,000 rpm for 10 min followed by centrifugation of the supernatant at 12000 rpm for 15 min in a sigma laboratory centrifuges 3K30 and the obtained mitochondrial fraction and further this fraction was used for the estimation of LPO product malondialdehyde. Further SOD and CAT was estimated.The study revealed that the 50% fruit extract dose dependently protected the oxidative stress and showed a tendency to decrease in volume acid-pepsin concentration and output. Reference drug rantidine a known cytoprotective agent has little effect on volume acid and pepsin concentration and acid output but showed a significant reduced in peptic output reduced LPO level and increase SOD and CAT level. The outcome indicate that the 50% ethanolic extract of A. marmelos fruit might have protected the rat tissues from ASP, PL, CRS and alcohol induced oxidative stress through anti-oxidant mechanism

Attenuated Antioxidant property of UV-B Irradiated Piperine in Ischemia-Reperfusion Injury in SD rat

PIP is well known antioxidant that showed neuroprotection against cerebral ischemia (2h) /reperfusion (24h) (I/R) injury. However, it can degrade very easily in presence of UV-R/sunlight. Here, comparative study of non-irradiated and UV-B (0.6mW/cm2) irradiated PIP was performed against cerebral I/R injury. First, the dose dependence evaluation of neuroscore was investigated after the non-irradiated PIP intravenously (2.5, 5, 10 mg/kg b w, i.v.) treatment. The neuroprotective outcome of UV-B irradiated and non-irradiated PIP (5 mg/kg b w, i.v.) against cerebral I/R in SD rats was investigated through evaluation of neuroscore and quantification of infarct volume by TTC staining. The result of photodegradation of PIP under UV-B irradiation revealed the formation of photoproducts. There were no changes in Cortical and mitochondrial ROS level and antioxidant defence enzyme (CuZn-SOD, Mn-SOD, and catalase) and non-enzyme (LPO, protein carbonyl and reduced glutathione) activities in UV-B irradiated compare vehicle group. Thus, our results demonstrated that PIP could lose its parent structure in presence of UV-B and attenuates its neuroprotective efficacy. Thus, UV-B exposure must be avoided during dietary intake of PIP to obtain best neuroprotective response

Radiological and clinical evaluation of cockayne syndrome: A case report

Cockayne syndrome (CS) is a rare autosomal recessive disorder characterized by premature ageing (progeria), facial anomalies, cachectic dwarfism, mental retardation, cutaneous photosensitivity, and retinopathy, loss of adipose tissue and muscle, and neurological abnormality which are associated with the changes in the brain parenchyma. The findings of computed tomography scan and especially magnetic resonance imaging of the brain support the clinical diagnosis of CS. There is no permanent cure of this condition and death usually occurs in the 2nd or 3rd decade due to functional disability and multiple infections

IRON-MAN: An Approach To Perform Temporal Motionless Analysis of Video using CNN in MPSoC

This paper proposes a novel human-inspired methodology called IRON-MAN ( Integrated RatiONal prediction and Motionless ANalysis ) for mobile multi-processor systems-on-chips (MPSoCs). The methodology integrates analysis of the previous image frames of the video to represent the analysis of the current frame in order to perform Temporal Motionless Analysis of the Video ( TMAV ). This is the first work on TMAV using Convolutional Neural Network (CNN) for scene prediction in MPSoCs. Experimental results show that our methodology outperforms state-of-the-art. We also introduce a metric named, Energy Consumption per Training Image ( ECTI ) to assess the suitability of using a CNN model in mobile MPSoCs with a focus on energy consumption and lifespan reliability of the device

Effect of Ambient Temperature on Calibration of Cooled Thermal Camera

Thermal cameras may be used under ambient conditions that differ significantly from the calibration conditions. The effect of ambient temperature on temperature measurement error is examined for MWIR and LWIR cooled thermal cameras. The facilities used include an environmental chamber and an extended area blackbody with temperature controller. Significant differences were observed in the temperatures measured by the cameras placed in different ambient temperatures, with reference to the set blackbody temperatures. Re-calibration was done to account for variations in ambient temperature from 5 ºC to on the outputs of the cameras. It was found that after such recalibration, the measurement error was within acceptable accuracy of ±1 °C

Estimation of Effect of Emissivity on Target Detection through Thermal Imaging Systems

The effects of target emissivity on apparent thermal contrast as well as on detection range capabilities of thermal imagers in long wave infrared and middle wave infrared bands were evaluated. The apparent thermal contrast (to be seen by the thermal imager at standoff distance), considering only the emission from target and background, was first computed in both the IR bands in terms of target emissivity and secondly the apparent thermal contrast, considering the background radiation reflected off the target, was also computed. A graphical user interface simulation in MATLAB was prepared for the estimation of total apparent thermal contrast taking into account both the emission and reflection. This total apparent thermal contrast was finally used in night vision thermal and image processing model for predicting the detection range performance of thermal imagers. Results of the analysis show that the effect of target emissivity on thermal contrast estimates is more pronounced in LWIR. The lower thermodynamic temperature difference between target and background at lower values of target emissivity leads to negative thermal contrast which in-turn leads to higher detection ranges