1,150 research outputs found
Child Welfare – Measures to Combat Violation, Exploitation, & Abuse
Biologically, Child falls within the state of human development in between the stages of birth
and puberty below the age of 14 years of age. Child is a gift of almighty which need to be
nurtured, cared, respected, loved and protected. The children during their tender age require
abundant care, love and affection from their parents, relatives and friends
In vitro investigation of anti-inflammatory activity and evaluation of phytochemical profile of Syzygium caryophyllatum
This study examined the anti-inflammatory potential of an aquous root extract of Syzygium caryophyllatum (Family: Myrtaceae) and reference drug Declofenac sodium, invitro using heat induced egg albumin denaturation bio assay technique. The concentrations of the root extract used were 781.25, 1562.5, 3125, 6250 and 12500 μg/mL. While diclofenac sodum were 78.12, 156.25, 312.5, 625, 1250 and 2500 μg/mL. Both the extract (r2 = 0.97; P<0.05) and Diclofenac sodium (r2 = 0.87; P<0.05) displayed marked and concentration dependent inhibition of heat-induced protein denaturation with IC50 value of 6.229 *103 μ g/ml and ~1.704*108 μg/mL respectively. Phytochemical analysis of the extract revealed the presence of the flavanoids, phenols, tanins, alkaloids, saponins and amino acids. It is concluded that the aquous root extract of Sri Lankan grown Syzygium caryophyllatum possess marked in vitro antiinflammatory activity which is mediated possibly by flavanoids, tanins and alkaloids. This is a novel finding. Further the results scientifically justify the use of roots of Syzygium caryophyllatum in Sri Lankan traditional medicine to treat inflammation
Optimal Location Of Series-Shunt Facts Devices In Transmission Line And Impact Of SSSC Compensated On Performance Of Distance Relay
The research works says that the impacts of facts devices changes with the change of their location on transmission line. Basically in power system we have two types of compensation devices. First is series facts devices, second is shunt facts devices by using these devices controlling of transmission line voltage and power flow is possible. Facts devices are also very useful to control the reactance power of transmission line and damping of power system oscillation for high power is possible. Series facts devices are connected in series of transmission line and works as a controllable voltage source. Shunt facts devices are connected in shunt with power system line.it works as a controllable current source. During the SLG fault, shunt capacitance of SSSC-compensated line affects the performance of distance relay. Research also shows the impact of ignoring the shunt capacitance of the line on the distance relay over and under reach conditions. By using MATLAB we can study the effects of series and shunt compensation according to the variation of location of these in transmission line. We can find the most suitable and optimal location of series, shunt or the combination of both compensation
Effect of Tinospora cordifolia as an add - on therapy on the blood glucose levels of patients with Type 2 diabetes
Background: Type 2 diabetes is a fast growing epidemic affecting people globally. Good glycemic control helps in reducing the risk of macro and microvascular complications in diabetics. Alternative medicines have been used since ancient times in India to achieve good glycemic control. Tinospora cordifolia (Tc) is a well reported plant possessing anti-diabetic property. Therefore, we undertook this study to evaluate the effectivity of Tc in reducing the blood glucose levels of Type 2 diabetic patients in the form of add-on therapy.Methods: In the present study, we enrolled 100 Type 2 diabetic patients who met our inclusion criteria. These patients were then randomly divided into two Groups, A and B. Patients in Group A were treated as controls and they continued with their anti-diabetic medications. In Group B, Tc was added to the conventional treatment at a dose of 500 mg 3 times daily along with meals. The fasting and postprandial blood glucose levels and glycosylated hemoglobin (HbA1c) were recorded baseline and after 6 months.Results: During the course of study, we observed a decrease in the fasting, postprandial, and HbA1c levels of the patients. However, this decrease was found to be more statistically significant (p≤0.005) in Group B.Conclusion: The results obtained from the present study conclude that Tc, when given in the form of add-on therapy, was found to be synergistic and effective in the better management of Type 2 diabetes. The drug was well tolerated by the patients and no adverse drug event was recorded
Regulation of the Germinal Center Response
The germinal center (GC) is a specialized microstructure that forms in secondary lymphoid tissues, producing long-lived antibody secreting plasma cells and memory B cells, which can provide protection against reinfection. Within the GC, B cells undergo somatic mutation of the genes encoding their B cell receptors which, following successful selection, can lead to the emergence of B cell clones that bind antigen with high affinity. However, this mutation process can also be dangerous, as it can create autoreactive clones that can cause autoimmunity. Because of this, regulation of GC reactions is critical to ensure high affinity antibody production and to enforce self-tolerance by avoiding emergence of autoreactive B cell clones. A productive GC response requires the collaboration of multiple cell types. The stromal cell network orchestrates GC cell dynamics by controlling antigen delivery and cell trafficking. T follicular helper (Tfh) cells provide specialized help to GC B cells through cognate T-B cell interactions while Foxp3+ T follicular regulatory (Tfr) cells are key mediators of GC regulation. However, regulation of GC responses is not a simple outcome of Tfh/Tfr balance, but also involves the contribution of other cell types to modulate the GC microenvironment and to avoid autoimmunity. Thus, the regulation of the GC is complex, and occurs at multiple levels. In this review we outline recent developments in the biology of cell subsets involved in the regulation of GC reactions, in both secondary lymphoid tissues, and Peyer's patches (PPs). We discuss the mechanisms which enable the generation of potent protective humoral immunity whilst GC-derived autoimmunity is avoided
Structural and Biochemical Insights into Dimethylsulfoniopropionate Cleavage by Cofactor-bound DddK from the Prolific Marine Bacterium Pelagibacter
Enormous amounts of the organic osmolyte dimethylsulfoniopropionate (DMSP) are produced in marine environments where bacterial DMSP lyases cleave it yielding acrylate and the climate-active gas dimethylsulfide (DMS). SAR11 bacteria are the most abundant clade of heterotrophic bacteria in the oceans and they play a key role in DMSP catabolism. An important environmental factor affecting DMS generation via DMSP lyases is the availability of metal ions since they are essential cofactors for many of these enzymes. Here we examine the structure and activity of DddK in the presence of various metal ions. We have established that DddK containing a double stranded β-helical motif utilizes various divalent metal ions as cofactors for catalytic activity. However, nickel, an abundant metal ion in marine environments, adopts a distorted octahedral coordination environment and conferred the highest DMSP lyase activity. Crystal structures of cofactor bound DddK reveal key metal ion binding and catalytic residues and provide the first rationalization for varying activities with different metal ions. The structures of DddK along with site-directed mutagenesis and UV-visible studies are consistent with Tyr 64 acting as a base to initiate the β-elimination reaction of DMSP. Our biochemical and structural studies provide a detailed understanding of DMS generation by one of the ocean’s most prolific bacterium
Coexistence of type-I and type-II superconductivity signatures in ZrB12 probed by muon spin rotation measurements
Superconductors usually display either type-I or type-II superconductivity and the coexistence of these two types in the same material, for example, at different temperatures, is rare in nature. We employed the muon spin rotation (μSR) technique to unveil the superconducting phase diagram of the dodecaboride ZrB12 and obtained clear evidence of both type-I and type-II characteristics. Most important, we found a region showing unusual behavior where the usually mutually exclusive μSR signatures of type-I and type-II superconductivity coexist. We reproduced that behavior in theoretical modeling that required taking into account multiple bands and multiple coherence lengths, which suggests that material has one coherence length larger and another smaller than the magnetic field penetration length (the type-1.5 regime). At stronger fields, a footprint of the type-II mixed state showing square flux-line lattice was also obtained using neutron diffraction
Fermi-crossing Type-II Dirac fermions and topological surface states in NiTe2
Transition-metal dichalcogenides (TMDs) offer an ideal platform to
experimentally realize Dirac fermions. However, typically these exotic
quasiparticles are located far away from the Fermi level, limiting the
contribution of Dirac-like carriers to the transport properties. Here we show
that NiTe2 hosts both bulk Type-II Dirac points and topological surface states.
The underlying mechanism is shared with other TMDs and based on the generic
topological character of the Te p-orbital manifold. However, unique to NiTe2, a
significant contribution of Ni d orbital states shifts the energy of the
Type-II Dirac point close to the Fermi level. In addition, one of the
topological surface states intersects the Fermi energy and exhibits a
remarkably large spin splitting of 120 meV. Our results establish NiTe2 as an
exciting candidate for next-generation spintronics devices
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