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Open access

Sumeet Singh, R.S. Mittal and Achal Sharma

Abstract

Bilateral thalamic infarction is rarely seen in cases with artery of Percheron embolization. Artery of Percheron is a rare variant of arterial supply to both thalamus and midbrain. Occlusion of this artery following trauma and causing bilateral thalamic infarction is rare and very few cases are reported in world literature.

Open access

B. Singh, G. Singh, R. Sharma, J. Sharma, R. Aulakh and J. Gill

Abstract

Human hydatidosis is an important public health issue in India and many other developing countries. There is lack of data related to occurrence of this disease in certain risk groups. The present study was therefore designed to assess the seroprevalence of human hydatidosis among occupational risk groups in Punjab (India). One hundred and forty nine human serum samples from dog handlers, veterinarians/para veterinarians, dairy farmers, patients with liver disorders, HIV positives and control group (visiting hospital for other problems) were collected and analyzed using a commercially available enzyme linked immunosorbent assay (ELISA). The results revealed that 23 (15.43 %) subjects were seropositive for human hydatidosis. High seropositivity were recorded in dog handlers (30 %), followed by the other risk group populations. Relative risk of being infected was found to be 4.80 times high in dog handlers when compared to control group population. Future studies must be planned to determine the significance of these findings and the status of human hydatidosis in India.

Open access

B. Singh, R. Sharma, J. Sharma and J. Singh Gill

Abstract

Echinococcosis is a preventable but neglected zoonosis in India. Although the disease in domestic animals is usually asymptomatic, huge economic losses have been reported due to cystic echinococcosis in livestock in India. The molecular characterization of Echinococcus from dog populations has not been previously carried out in Punjab (India). A total of 237 pet and stray dog faecal samples were collected and examined for the presence of eggs of the Taeniidae family in Punjab (India). A 255 base pair fragment of the mitochondrial 12S rRNA gene was amplified and the presence of sheep strain (G1) of E. granulosus has been reported. We detected eggs of the Taeniidae family in 2.11 per cent of the faecal samples. High prevalence was recorded in stray dogs (9.52 %) living near slaughter shops/post mortem areas. The prevalence of E. granulosus sheep strain (G1) using PCR was found to be 0.84 per cent in naturally infected dogs. This is the first study confirming the presence of E. granulosus (G1) sheep strain in dogs in Punjab (India). The results reveal the presence of sheep strain of E. granulosus and demand implementation of Animal Birth Control programme so as to control the stray dog population of the country.

Open access

B.K Sharma, M. Sharma, R.K. Gaur and A. Mishra

Abstract

In the present study a mathematical model for the hydro-magnetic non-Newtonian blood flow in the non-Darcy porous medium with a heat source and Joule effect is proposed. A uniform magnetic field acts perpendicular to the porous surface. The governing non-linear partial differential equations have been solved numerically by applying the explicit finite difference Method (FDM). The effects of various parameters such as the Reynolds number, hydro-magnetic parameter, Forchheimer parameter, Darcian parameter, Prandtl number, Eckert number, heat source parameter, Schmidt number on the velocity, temperature and concentration have been examined with the help of graphs. The present study finds its applications in surgical operations, industrial material processing and various heat transfer operations.

Open access

H. S. Ginwal, P. Chauhan, S. Barthwal, A. Sharma and R. Sharma

Abstract

The study reports the transferability of chloroplast microsatellite markers developed for Pinus species to Cedrus deodara. A total of 49 primer pairs (both nuclear and chloroplast) of Pinus species were tested in C. deodara out of which 21 chloroplast primers showed positive amplification and 20 were found polymorphic. The primers were screened on 100 adult trees of two natural populations of C. deodara. Using twenty cpSSR primers, a total of 64 variants were found which combined in 70 different haplotypes. The total haplotype diversity in two populations was 0.860 and 0.876 with a mean of 0.868. These sets of markers can further be used for population genetic studies and characterization in C. deodara for which no cpSSR markers have been reported till date.

Open access

Anand Sharma, Achal Sharma and R.S. Mittal

Abstract

A composite type of SCM is very rare and only a few cases have been reported until today. The frequency of composite- type SCM is lower than 1% in the literature. In this report, we presented an unusual case of long segment composite type split cord malformation with double level bony spur with multiple associated bony anomalies.

Open access

Mukesh Sharma, R.S. Mittal, Rajeev Bansal and Achal Sharma

Abstract

Aim: In this study, symptoms at presentation, indication for surgery, surgical treatment modalities, postoperative results and complications were studied.

Material and methods: We retrospectively compiled the details of patients with IAC from admission and operative records admitted through our OPD during the period between January 1995 and January 2015. Only those patients were admitted whose symptoms attributes to the cyst and asymptomatic patients were followed on OPD basis. This is a single institutional study.

Results: This study includes 56 patients of IAC who were operated. Posterior fossa cysts (62.5%) were found more commonly symptomatic. Headache (32%) was the most common symptom in a patient with IAC. Out of all, 24 patients presented with headache and underwent surgery subsequently; 20 showed satisfactory relief after surgery while four showed partial relief. Size of cyst was significantly reduced after surgery in 52 patients after 12 weeks but four patients, who underwent cystoperitoneal shunt, required re-operation as patients showed no decrease in size of cyst due to shunt malfunction. Head circumference was reduced following intervention in infant patients. Three patients who presented with visual field defects with IAC in sellar region showed improvement after endoscopic fenestration of cyst. One of the patient with cerebellopontine angle arachnoid was died immediately after marsupialization due to unexplained bleeding.

Conclusions: IAC is not an uncommon finding on imaging but only few are symptomatic. Patients with Intracranial arachnoid cyst should be treated only if the patient’s symptoms are attributable to the cyst.

Open access

Rita Sharma, Shaveta Sharma, Praveen Kumar, Ravi Chander, R. Thangaraj and M. Mian

Abstract

The composition dependence of physical properties of chalcogenides has recently been studied for their phase change properties and energy conversion. In the present work, we report the structure, composition, optical and Raman spectroscopy results for bulk polycrystalline InxSb20−xAg10Se70 (0 ⩽ × ⩽ 15) samples. The phase quantification and composition have been studied by using XRD and EDX techniques. The alloy composition up to 5 at.% of indium resulted in crystallization of AgSbSe2, while further increase in In content favored the formation of another chalcopyrite AgInSe2 phase yielding the solid solutions for this alloy system. A decrease in band gap up to x = 5 followed by its increase with an increase in indium concentration has been observed. The variations in shape and position of characteristic Raman bands has been used for understanding the structural modifications of the network with the variation in indium content.

Open access

Anand Sharma, Akhilesh Jain, Achal Sharma, R.S. Mittal and I.D. Gupta

Abstract

Introduction: Traumatic brain injury (TBI) is a major cause of disability. Assessment and treatment of TBI typically focus on physical and cognitive impairments, yet psychological impairments represent significant causes of disability. Depression may be the most common and disabling psychiatric condition in individuals with TBI.

Objective: This cross-sectional study was design to investigate prevalence and risk factors of depression in Traumatic brain injury (TBI).

Material and method: The Group studied consists of 204 patients of mild and moderate TBI between 14-days to one-year post injury. Demographic characteristics of the participants were assessed on a self-designed semi structured performa. Interviews focused on assessment of severity of TBI, depression and quality of life (Qol) using GCS, PHQ-9 and WHOBREF-QOL respectively.

Results: Total 204 patients were included. 42.15% participants were found to have depression. None of the demographic variables were associated with depression except female sex, severity and time since injury. Moderate TBI patient (55.80%) had significantly higher occurrence of depression than the mild cases (44.2%). Patients with lesser duration (time since injury) of TBI had high incidence (50.2%) of depression compare to longer duration of TBI. Depressed patients also had poor Qol than those without depression in all domains except physical health domain. Neuroanatomical localization was also correlated with depression. Cerebral contusions were the most common (44.24%) lesions associated with depression.

Conclusion: Depression is commonly associated, yet under diagnosed clinical entities in head injury and have tremendous impact in overall outcome measures. Every patient of head injury warrants psychiatric evaluation and concomitant treatment if required to ensure the attainment of not only neuroanatomical intact but overall productive and qualitative life vindicating the holistic and multidisciplinary treatment approach.

Open access

G.C. Rana, R. Chand and V. Sharma

Abstract

In this paper the combined effect of uniform rotation and AC electric field on the onset of instability in a horizontal layer of an elastico-viscous fluid stimulated by the dielectrophoretic force due to the variation of dielectric constant with temperature is studied. Walters’ (model B’) fluid model is used to describe rheological behaviour of an elastico-viscous fluid. The onset criterions for stationary and oscillatory convection are derived for the case of free-free boundaries. It is observed that Walters’ (model B’) fluid behaves like an ordinary Newtonian fluid and rotation has stabilizing influence whereas AC electric field has destabilizing influence on the stability of the system. The necessary condition for the occurrence of oscillatory convection is also obtained. The present results are in good agreement with the earlier published results.