20 research outputs found
A Revised Novel Approach of Ischemic Stroke through Thrombolytic Therapy and Thrombectomy
This comprehensive overview analyses the development of ischemic stroke therapy, emphasizing the critical significance that thrombolytic therapy and thrombectomy techniques have played. With a particular set of difficulties, thrombolytic therapy tissue plasminogen activator, or tPA has revolutionized acute stroke care by breaking up clots in a crucial window of time. Simultaneously, thrombectomy has become a revolutionary intervention, especially for large-vessel occlusions, offering a localized, effective approach and expanding therapy windows. This review guides you through the historical events, technological developments, and continuing research that have shaped these methods. The importance of individualized treatment plans, the use of telemedicine, and the bright future prospects for the management of ischemic strokes are emphasized
Programmable Electronic Delay Device for Detonator
Delay devices are used to perform various roles like aiding in sequential release of payload, providing safety in flight/ trajectory, enabling self-destruction of ammunitions, allowing blast of the warhead after penetration in runway/bunker, etc. The delay time is introduced to cause a series of detonation events from the explosive charge, in order to achieve desired efficiency. Inspite of many improvements performed along the years, in search of precise delay compositions, it is noticed that the obtained accuracy in chemical delay compositions is of ±4%.The present work using microcontroller gives possible accuracy of upto ±1%.This paper discusses about programmable electronic delay device, timing accuracy of electronic delay device and its merits over chemical delay devices.Defence Science Journal, 2013, 63(3), pp.305-307, DOI:http://dx.doi.org/10.14429/dsj.63.288
Comparing low-dose (DART) and enhanced low-dose dexamethasone regimens in preterm infants with bronchopulmonary dysplasia
IntroductionDetermining the optimal dexamethasone dosage for facilitating extubation in extremely low birth weight (ELBW) infants with bronchopulmonary dysplasia (BPD) remains uncertain. This study aims to compare the effectiveness of low-dose (DART) and enhanced low-dose dexamethasone regimens in achieving successful extubation in these infants.MethodsWe conducted a retrospective cohort study at the Women's Wellness and Research Center (WWRC) involving ELBW infants who received dexamethasone for BPD prevention or treatment, or for extubation between January 1st, 2015, and December 31st, 2019. Our goal was to assess successful extubation within various time points of treatement.ResultsA total of 77 patients, matched in gestational age and BW, were enrolled in the study, receiving a total of 121 dexamethasone courses. Low-dose dexamethasone courses were administered 75 times to 49 infants, while 46 courses of enhanced low-dose were given to 28 infants. Treatment commenced at 30.8 ± 3.4 weeks post-menstrual age, compared to 32.1 ± 2.5 weeks in the enhanced low-dose group (p = 0.014). The median (IQR) course duration was seven (3–10) days in the low-dose group, while it was 10 (8–14) days in the enhanced low-dose group (p < 0.001). The median (IQR) course dose was 0.73 (0.53–0.86) mg/kg in the low-dose group and 1.27 (0.97–2.05) mg/kg in the enhanced low-dose group (p < 0.001). There were no differences in extubation success at any time point between the two groups at 72 h and seven days after treatment initiation, by course completion, and within seven days after treatment completion. However, regression analysis identified several predictors of successful extubation; baseline FiO2, course duration, and duration of invasive mechanical ventilation were negatively associated with successful extubation at various time points, while received dose per kg and cumulative dose positively correlated with successful extubation at different time points. No significant differences were observed in secondary outcomes, including death or BPD.ConclusionThe choice between low-dose and enhanced low-dose dexamethasone regimens may not significantly impact extubation success. However, careful consideration of dosing, ventilation status, and treatment duration remains crucial in achieving successful extubation. This study highlights the need for personalized dexamethasone therapy in ELBW infants
Finite element computation of multi-physical micropolar transport phenomena from an inclined moving plate in porous media
Non-Newtonian flows arise in numerous industrial transport processes including materials fabrication systems.
Micropolar theory offers an excellent mechanism for exploring the fluid dynamics of new non-Newtonian materials which possess internal microstructure. Magnetic fields may also be used for controlling electrically-conducting polymeric flows. To explore numerical simulation of transport in rheological materials processing, in the current paper, a finite element computational solution is presented for magnetohydrodynamic (MHD), incompressible, dissipative, radiative and chemically-reacting micropolar fluid flow, heat and mass transfer adjacent to an inclined porous plate embedded in a saturated homogenous porous medium. Heat generation/absorption effects are included. Rosseland’s diffusion approximation is used to describe the radiative heat flux in the energy equation. A Darcy model is employed to simulate drag effects in the porous medium. The governing transport equations are rendered into non-dimensional form under the assumption of low Reynolds number and also low magnetic Reynolds number. Using a Galerkin formulation with a weighted residual scheme, finite element solutions are presented to the boundary value problem. The influence of plate inclination, Eringen coupling number, radiation-conduction number, heat absorption/generation parameter, chemical reaction parameter, plate moving velocity parameter, magnetic parameter, thermal Grashof number, species (solutal) Grashof number, permeability parameter, Eckert number on linear velocity, micro-rotation, temperature and concentration profiles. Furthermore, the influence of selected thermo-physical parameters on friction factor, surface heat transfer and mass transfer rate is also tabulated. The finite element solutions are verified with solutions from several limiting cases in the literature. Interesting features in the flow are identified and interpreted
Recent developments and future prospects for using azolla as animal feed in livestock and poultry
<p>Azolla is a small, free-floating water fern with a global distribution. Azolla can be used as a feedstock because it is high in proteins, fatty acids, amino acids and vitamins. Protein content in azolla species is in a range of 21–26%, dry matter, while fatty acids ranged from 41% to 66% dry matter. Azolla is rich in various classes of active compounds such as phenolic content, caffeoylquinic acid derivatives, <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/tannin">tannins</a>, and <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/carotene">carotene</a>. Azolla has been shown to improve the growth rate of animals, depending on the percent of inclusion in animal's diet. The most common species of azolla used as animals' feedstock is <i>Azolla pinnata</i>. The impact of azolla as a feed ingredient in the <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/food-production">food production</a> system on the environment has been addressed, including <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/greenhouse-gas-emission">greenhouse gas emissions</a>, carbon footprint, low land requirements, and amino acid-enriched feedstuffs.</p>
Quality Control of Feed and Feed Ingredients
<p><span>Feed alone contributes 65-75% of total expense in the farm so the efficiency of feed utilization in livestock and poultry and the development of feed industry of the country depend on feed quality.</span></p>
Swift heavy ion induced nano-dimensional phase separation in liquid immiscible binary Mn–Bi
Pulsed laser deposited 60 nm thin film of homogeneous Mn0.82Bi0.18 composite has been irradiated by100 MeV Au ions at fluence 1 1013 ions/cm2, and investigated by field emission scanning electronmicroscopy, X-ray diffraction, magnetic hysteresis, X-ray photoelectron spectroscopy, and nanoindentationmeasurements. Dispersed nanostructures of soft Bi-rich phase of about 20 nm diameter emerged in ahard Mn-rich matrix on irradiation. Such structures, as synthesized by the present novel swift heavy ionirradiation approach, are usable as self-lubricating thin films
Antiinflammatory and antiulcer activities of phytic acid in rats
179-185Maximum antiinflammatory activity of
phytic acid (PA) was seen at an oral dose of 150 mg/kg in the carrageenan induced
rat paw edema model. Although PA showed ability to prevent denaturation of
proteins, it showed less antiinflammatory activity than ibuprofen. Ability of
PA, to bring down thermal denaturation of proteins might be a contributing
factor in the mechanism of action against inflammation. PA, at all the doses
tested, showed significant protection from ulcers induced by ibuprofen, ethanol
and cold stress, with a maximum activity at 150 mg/kg. There was a significant
increase in gastric tissue malondialdehyde levels in ethanol treated rats but
these levels decreased following PA
pretreatment. Moreover, pretreatment with
PA significantly inhibited various effects of ethanol on gastric mucosa, such as,
reduction in the concentration of nonprotein sulfhydryl groups, necrosis,
erosions, congestion and hemorrhage. These results suggested that
gastro-protective effect of PA could be mediated by its antioxidant activity and
cytoprotection of gastric mucosa