A clinical analysis of outcome in management of head injury in patients with highway road accidents

Background: Road traffic accidents (RTAs) are a major cause of misery, disability and death globally, with a disproportionate number occurring in developing countries. Complications from closed head injuries are the single largest cause of morbidity and mortality in patients who reach the hospital alive. The present study assesses the outcome in the management of head injury admitted in our hospital following RTA in the period of one year.  Methods: This retrospective study carried out in the department of Neurosurgery in a rural tertiary hospital, Kolar, Karnataka, India. Patients who got admitted between periods of January 2012 to January 2013 were included in the study. All patients were clinically evaluated by a team comprising of doctors from surgical, medical and orthopedics specialties in the emergency department and subsequently admitted and treated at neurosurgery. The study was conducted based on these reports and observations and outcome of patients. The results were expressed as percentages.Results: At the time of admission 41% patients were under alcoholic influence, 97% patients had history of LOC, 50% patients had ENT bleed and 7.5% had CSF leak.  The GCS score of less than 8 was seen in 33% cases, 9 to12 in 52% cases and between 12 to 14 in 15% patients. As per Glasgow outcome scale (GOS), 91% of patients had good recovery, 5.5% patients had disability (hemiparesis, ptosis) and 3.5% patients died in the course of treatment. Conclusions: Head injury due to RTA is a recognized major public health problem causing death and disability among the population. So it should be managed in time and also should be looked seriously by concerned authority for reducing the incidences of head injury associated with RTA and protecting people by debilitating conditions

The reconfigurable Josephson circulator/directional amplifier

Circulators and directional amplifiers are crucial non-reciprocal signal routing and processing components involved in microwave readout chains for a variety of applications. They are particularly important in the field of superconducting quantum information, where the devices also need to have minimal photon losses to preserve the quantum coherence of signals. Conventional commercial implementations of each device suffer from losses and are built from very different physical principles, which has led to separate strategies for the construction of their quantum-limited versions. However, as recently proposed theoretically, by establishing simultaneous pairwise conversion and/or gain processes between three modes of a Josephson-junction based superconducting microwave circuit, it is possible to endow the circuit with the functions of either a phase-preserving directional amplifier or a circulator. Here, we experimentally demonstrate these two modes of operation of the same circuit. Furthermore, in the directional amplifier mode, we show that the noise performance is comparable to standard non-directional superconducting amplifiers, while in the circulator mode, we show that the sense of circulation is fully reversible. Our device is far simpler in both modes of operation than previous proposals and implementations, requiring only three microwave pumps. It offers the advantage of flexibility, as it can dynamically switch between modes of operation as its pump conditions are changed. Moreover, by demonstrating that a single three-wave process yields non-reciprocal devices with reconfigurable functions, our work breaks the ground for the development of future, more-complex directional circuits, and has excellent prospects for on-chip integration

Clinical efficacy of Kapha Ketu Rasa on Tamaka Swasa

Context: Compound drugs are scientifically formulated aiming to get the desired therapeutic effects through synergy. Kapha Ketu Rasa is one such compound drug which is a classical herbo mineral marine Khalvi Rasayana judicially containing Shankha Bhasma, Vatsanabha, Tankana and Pippali. Treating GERD along with the treatment of bronchial asthma will enhance the clinical success rate. At this juncture, it is worth to notice the pharmacology of Kapha Ketu Rasa in the same perspective. Aims: To study the clinical effect of Kapha Ketu Rasa on Tamaka Swasa (Bronchial asthma). Materials and Methods: 30 Patients of Tamaka Swasa irrespective of age, sex, religion etc., were randomly selected and treated with 125 mg of Kapha Ketu Rasa capsules twice a day with Ardraka Swarasa before meals for 21 days, then followed for 21 more days. Results: The clinical study showed statistically highly significant improvement in both subjective and objective parameters viz. Kasa (91%), Ghurghurata (83%) and Swasakruchrata (82%) including decrease in AEC, ESR, Differential eosinophil count and PEF was also statistically significantly improved. Conclusions: Kapha Ketu Rasa is an effective Vyadhi Pratyanika herbo mineral Shamana Rasayana in the management of Tamaka Swasa

Optical waveform sampling of a 320 Gbits/s serial data signal using a hydrogenated amorphous silicon waveguide

We propose using a hydrogenated amorphous silicon waveguide for ultra-high-speed serial data waveform sampling. 320 Gbit/s serial optical data sampling is experimentally demonstrated with +12 dB intrinsic four wave mixing conversion efficiency

Renormalization-group approach to superconductivity: from weak to strong electron-phonon coupling

We present the numerical solution of the renormalization group (RG) equations derived in Ref. [1], for the problem of superconductivity in the presence of both electron-electron and electron-phonon coupling at zero temperature. We study the instability of a Fermi liquid to a superconductor and the RG flow of the couplings in presence of retardation effects and the crossover from weak to strong coupling. We show that our numerical results provide an ansatz for the analytic solution of the problem in the asymptotic limits of weak and strong coupling.Comment: 8 pages, 3 figures, conference proceedings for the Electron Correlations and Materials Properties, in Kos, Greece, July 5-9, 200

Aquation of Coordinated Chlorides in cis-ɑ & cis-β Dichloro(triethylenetetramine) Co(III) Chlorides

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Exact SO(8) Symmetry in the Weakly-Interacting Two-Leg Ladder

A perturbative renormalization group analysis of interacting electrons on a two-leg ladder reveals that at half-filling any weakly repulsive system scales onto an exactly soluble Gross-Neveu model with a hidden SO(8) symmetry. The half-filled ground state is a Mott insulator with short-range d-wave pair correlations. We extract the exact energies, degeneracies, and quantum numbers of *all* the low energy excited multiplets. One energy (mass) m octets contains Cooper pair, magnon, and density-wave excitations, two more octets contain single-particle excitations, and a mass \sqrt{3}m antisymmetric tensor contains 28 "bound states". Exact single-particle and spin gaps are found for the lightly-doped (d-wave paired one-dimension Bose fluid) system. We also determine the four other robust phases occuring at half-filling for partially attractive interactions. All 5 phases have distinct SO(8) symmetries, but share S.C. Zhang's SO(5) as a common subgroup.Comment: RevTex, 35 pages with 15 figure