Cartap hydrochloride poisoning: a case report

Cartap hydrochloride is a thiocarbamate insecticide used for control of chewing and sucking insects of all stages of development, on many crops. It is an analogue of nereistoxin. Poisoning with cartap is very rarely reported from India. We report a 46 year old man who consumed cartap with alcohol, presented with nausea & vomiting and improved with supportive measures

Meiobenthic Diversity in Relation to Water Quality of Aamayizhanchan Canal of Thiruvananthapuram City, Kerala

Monitoring and assessment of meiobenthic fauna is essential to evaluate the health status of urban canals, especially those used as urban sewage discharge sites. An attempt was made to assess the diversity of meiobenthos of Aamayizhanchan Thodu, a freshwater first-order canal flowing through Thiruvananthapuram, the capital city of Kerala state, from January to April 2021. A total of 7 meiobenthic groups were identified, of which nematodes and foraminifera were registered from all stations with more abundance towards downstream reach. Ostracodes, oligochaetes, polychaetes, kinorynchs, and turbellarians are represented in the diversity and abundance of meiobenthos found higher in stations with higher salinity and from silty to sandy zones. Statistical analysis showed a significant (P<0.05) difference between stations in meiobenthic diversity and abundance. Despite the heavy effluent and municipal waste discharge to the canal, the meiobenthic diversity showed a significant relationship with water quality and canal water flow

Structural dynamic modification of cylindrical shells with variable thickness

In this paper, the effects of some geometrical parameters on dynamic behavior of cylindrical shells with constant and variable thickness are studied. The equation of motion for the shell with constant thickness is extracted based on classical shell theory using Hamilton’s principle. These equations which are a system of coupled partial differential equations are solved analytically and the natural frequency is determined for cylindrical shells with constant thickness. The natural frequency for cylindrical shells with variable thickness is determined using finite element method by employing ANSYS. The results are compared and the effect of different geometric parameters such as length, thickness, and radius on natural frequency is discussed. The specific ranges for geometric parameters have been determined in which there is no significant difference between shells with constant or variable thickness. Cylindrical shells with variable thickness have better stress and strain distribution and optimum weight, in compare with the shells with constant thickness and it is important to know in which ranges of dimensions and geometrical parameters, there are some significant differences between their mechanical properties such as natural frequency. The results are compared with some other references

Envisioning the Next Generation Cellular Client

The cellular revolution has been accompanied by a gradual evolution in functionality. The Motorola handie-talkie introduced in the early 1940‟s was a five pound behemoth that barely worked. Contemporary phones have become ubiquitous devices that are outfitted with camera, video, GPS, internet and e-mail. Fourth generation phones are expected to provide high speed internet access for data as well as multi-media through protocols that subsume existing standards. Beyond this, the capabilities of 4G phones have not been spelled out in detail. In this paper we outline our vision of a feature rich next generation phone that is backed up by an infrastructure of service offerings

Role of proximal femur locking plate fixation in certain unstable trochanteric fractures

Background: Comminution of the lateral trochanteric wall, postero-medial communition, reverse oblique fractures, fractures involving communition of greater trochanter are unstable fractures which had poor results with the regular methods of fixation. Our aim in this study is to evaluate radiological and functional outcome at the end of one year following proximal femur locking plate fixation for certain group of unstable intertrochanteric fractures.Methods: 20 patients (14 male and 6 female patients) with per trochanteric fractures underwent proximal femur locking plate fixation in Sri Ramachandra Medical College hospital. Intertrochanteric fractures were classified according to Boyd and Griffin. Mean age of the patients was 55.2 years (26-82 years). The Schatzker & Lambert Criteria used to evaluate the functional outcome at the end of one year. Minimum follow up period was six months and maximum follow up was one year.Results: The functional outcome was assessed by Schatzker and Lambert criteria and was excellent in 8 patients; good in 6, Fair in 4 and Poor in 2.The average time to bear weight fully and walk was 6.5 weeks.Conclusions: Union was achieved in unstable, comminuted trochanteric fractures without significant complications and neck shaft angle was maintained in majority of the cases following proximal femur locking plate fixation.One of the major drawbacks of using proximal femur locking plate is that weight bearing is to be controlled and done only after radiological evidence of callus formation.

Lattice Boltzmann - Langevin simulations of binary mixtures

We report a hybrid numerical method for the solution of the model H fluctuating hydrodynamic equations for binary mixtures. The momentum conservation equations with Landau-Lifshitz stresses are solved using the fluctuating lattice Boltzmann equation while the order parameter conservation equation with Langevin fluxes are solved using the stochastic method of lines. Two methods, based on finite difference and finite volume, are proposed for spatial discretisation of the order parameter equation. Special care is taken to ensure that the fluctuation-dissipation theorem is maintained at the lattice level in both cases. The methods are benchmarked by comparing static and dynamic correlations and excellent agreement is found between analytical and numerical results. The Galilean invariance of the model is tested and found to be satisfactory. Thermally induced capillary fluctuations of the interface are captured accurately, indicating that the model can be used to study nonlinear fluctuations

Workability behaviour of Fe-C-Mo steel preforms during cold forging

A systematic method to construct the workability diagram for powder metallurgy (P/M) materials has been proposed. Preforms of Fe-0.8%C, Fe-0.8%C-1%Mo and Fe-0.8%C-2%Mo were prepared to the relative density of 0.86 with two different geometries through primary operations of P/M processes. Each sintered preform was cold upset forged with incremental compressive loading of 0.04MN under three different lubricant conditions till a visible crack appeared at the free surface. Oyane's fracture criterion was used to develop a theory to study P/M products. The least square method was used to determine the constants in fracture criteria and these equations were eventually used to construct workability diagram. It is found that the proposed method was well in agreement with the experimental results