666 research outputs found

    Synthesis and characterization of nano sized (Zn,Cd)S mixed phosphors

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    Present paper reports synthesis and characterization of (Zn,Cd)S mixed phosphors. Sample was synthesized with modified chemical route method which is suitable for large scale production and economical with pollution free technique. Prepared sample was characterized by PXRD (Powder X-ray Diffraction technique) and average crystalline sizes were calculated by Debye-Scherer formula which was verified by FEGSEM (Field emission gun scanning electron microscopy) technique. The average particles sized were found at 5-55nm range

    Determination of TL Kinetic parameters of a phosphor

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    Present paper reports the methods of evaluating the kinetic parameters like trap depth, frequency factor etc. by using the Glow Curve of a phosphor. Peak shape method is found to be suitable amongst all reported methods. This method provides the nearest possible values of all studied kinetic parameters which are discussed in details. MS -Excel sheet is prepared for calculation

    Encapsulated cyst fat necrosis masquerading as cold abscess

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    Encapsulated fat necrosis is a benign, usually asymptomatic and underreported condition. It is believed to be trauma‐related ischemia and necrosis of fat tissue that gradually detaches from its surroundings. Here we reported a case of encapsulated cyst fat necrosis in a 75 years old female following intramuscular injection, who was clinically diagnosed as cold abscess initially

    A rare tumor at an unusual site-angiomyolipoma vulva

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    An angiomyolipoma is one of the very rare benign tumors. All three elements, that is, blood vessels, adipose tissue and smooth muscles, should be present to qualify it to be labelled as an ‘angiomyolipoma’. Although it has been reported at other sites also like mediastinum, heart, spermatic cord, fallopian tube, oral cavity, penis, salivary glands, and skin

    A rare case series of chondroid syringoma in three young patients

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    Chondroid syringoma is also known as mixed tumour of the skin. It is a rare, biphasic cutaneous neoplasm similar to pleomorphic adenoma of salivary glands. Because of its rarity, many cases are misdiagnosed in the initial stages as cysts or other cutaneous adnexal neoplasms and are often identified only after being sent for histopathological examination.Although it usually presents in middle and older aged patients, we are presenting three younger patients with Chondroid syringoma, located over the back, nose and cheek, respectively

    Immature teratoma with a rare finding of choroid plexus

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    Mature cystic teratoma of the ovary is the most common ovarian tumour in young women. Immature teratoma is a very rare tumour, representing only 1% of all ovarian cancers. Paediatric ovarian tumours are rare, with a reported incidence rate of 2.2/100,000 in girls aged 0 to 15 years. In the case report presented here, was 12-year-old suspected to have serous cystadenoma of ovary based on CT scan, which was ultimately diagnosed with immature teratoma grade 3 after histopathological examination was done

    Comparison of ropivacaine alone or with dexamethasone as an adjuvant for reducing pain during positioning for neuraxial blockade with ultrasound-guided fascia iliaca compartment block

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    Background: Comparison of ropivacaine alone or with dexamethasone as an adjuvant for reducing pain during positioning for neuraxial blockade with ultrasound-guided fascia iliaca compartment block.Methods: In this double-blinded study, a total of 60 patients between 18 to 80 years of age, undergoing surgery for hip fracture were enrolled. Patients in Group A received 40 ml of 0.25% ropivacaine +2 ml saline and patients in Group B received 40 ml of 0.25% ropivacaine +8 mg dexamethasone. USG guided FICB and postoperative monitoring was done by the chief investigator who was unaware of group allotted and drug administered.Results: There is no significant difference in the heart rate between the two groups after 30 min of the block. The variation of systolic blood pressure of both the group for the first 30 min after giving FICB block was not significant (p>0.05). The absolute value of diastolic blood pressure (DBP) was significantly lower in Group B compared to group A just before the block, a variation of DBP with time was not significant. There was a gradual improvement of pain score from mean 6.7 in Group A and 6.6 in Group B at 0 min to score of 2 at the end of 30 min in both the group. This improvement was achieved earlier in Group B compared to Group A, although the difference was not significant (p>0.05). Vital parameters like HR, SBP, DBP, SpO2 values were similar in both the groups. No patients in either group required any interventions both pre-operatively and pos-operatively. Time of rescue analgesia was noted with the VAS score was significantly more in Group B (p≤0.004). The incidence of hematoma, accidental intravascular injection, convulsion, and paresthesia were nil in both groups.Conclusions: Although both the groups had comfortable and pain-free positioning for administering spinal anaesthesia before surgery. USG guided FICB is easy to perform block and give excellent analgesia for positioning and mobilization of hip fracture patients pre and post-operatively both, and dexamethasone as an adjuvant to 0.25%ropivavaine prolong its local anesthetic effect significantly

    TL glow curve and kinetic of gamma irradiated quartz collected from Rasmada mines of C.G. basin

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    Present paper reports the TL glow curve and kinetic parameter of Quartz. The sample of natural quartz collected from Rasmada mines of C.G. basin is irradiated with gamma source. For gamma exposure Co60 gamma source was used and the exposure of 1 hour to 4 hour was given to the sample with dose 0.5kGy to 2 kGy. TL glow for quartz crystal shows the peaks at temperature 242, 256, 250 and 2520C for doses 2kGy to 0.5 kGy respectively. The powder sample shows TL glow peak at 236, 251, 254 and 2530C respectively. The corresponding activation energy and frequency factor is calculated by peak shape method. The activation energy found to be 0.79 eV for powder and 1.26 eV for quartz crystal, frequency factor is found to be 4X108 to 3X1013sec-1. The maximum activation energy is found for quartz crystal with gamma exposure of 2kGy. The sample shows first and second order kinetics. The sample was characterized by XRD. The Induction coupled plasma activated emission spectra (ICP - AES) analysis was done to find out the percentage of elements in the quartz mineral
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