1,833 research outputs found
Safety and efficacy of intravenous pulse cyclophosphamide therapy in children with steroid-dependent nephrotic syndrome
Background: Cyclophosphamide (Cyp) is a well-known alternative agent to spare the use of steroids and avoid the side effects that result from long-term steroid therapy in children with idiopathic nephrotic syndrome (NS). Use of Cyp typically reduces the risk of relapse in comparison with prednisolone by about 50%. Objective: To study the safety and efficacy of intravenous pulse Cyp (IV Cyp) therapy in children with steroid-dependent NS (SDNS). Materials and Methods: This was a retrospective single-center analysis from a large government hospital in South India. The data were retrieved from the records of children attending the pediatric nephrology clinic between 2005 and 2016. Children with SDNS who received the complete schedule of IV Cyp were included in the study. Children who received other alternate drugs were excluded. Results: Fifty patients with SDNS were treated with IV Cyp, seven patients did not complete the treatment and were excluded from the analysis. 24 (56%) of the 43 patients stayed in remission throughout the course of Cyp treatment and prednisolone could be stopped and were considered as Cyp responsive. The remaining 19 (44%) children had relapsed while on Cyp therapy (Cyp resistant) and required treatment with alternate immunosuppressant drugs. 19 of the 24 Cyp responsive patients were in remission 6 months after stopping Cyp treatment (Cyp sensitive) while the remaining five patients relapsed within 6 months of stopping Cyp treatment (Cyp dependent). 9 children (20.9%) were relapse-free till the time of last follow-up with a median follow-up of 2.1 years. Among 24 children, 13 (30.23%) who responded were infrequently relapsing NS and 2 (4.5%) children were frequently relapsing NS
Bridging the Divide between Neuroprosthetic Design, Tissue Engineering and Neurobiology
Neuroprosthetic devices have made a major impact in the treatment of a variety of disorders such as paralysis and stroke. However, a major impediment in the advancement of this technology is the challenge of maintaining device performance during chronic implantation (months to years) due to complex intrinsic host responses such as gliosis or glial scarring. The objective of this review is to bring together research communities in neurobiology, tissue engineering, and neuroprosthetics to address the major obstacles encountered in the translation of neuroprosthetics technology into long-term clinical use. This article draws connections between specific challenges faced by current neuroprosthetics technology and recent advances in the areas of nerve tissue engineering and neurobiology. Within the context of the device–nervous system interface and central nervous system implants, areas of synergistic opportunity are discussed, including platforms to present cells with multiple cues, controlled delivery of bioactive factors, three-dimensional constructs and in vitro models of gliosis and brain injury, nerve regeneration strategies, and neural stem/progenitor cell biology. Finally, recent insights gained from the fields of developmental neurobiology and cancer biology are discussed as examples of exciting new biological knowledge that may provide fresh inspiration toward novel technologies to address the complexities associated with long-term neuroprosthetic device performance
STRESS INDUCED CHRONIC INSOMNIA (ANIDRA) AND IT’S MANAGEMENT WITH DASHAMULA KWATHA SHIRODHARA
Sleep is one of the most important physiological processes responsible for the maintenance of health. It is one of the states of brain activity generally resultant effect of exhaustion and fatigue. ‘Sleep’ is defined as unconsciousness from which the person can be aroused by external stimulus or other. It is different from coma. In coma state person can not be aroused. The incidence of sleep disturbance is very common in all age groups irrespective of caste, community, race, socio-economic status and sex etc. which might be related to the life style, environmental influence, mental tension, changed food habits and day to day stress. These ultimately disturb the psychoneuro-biological rhythm of sleep broadly discussed under sleep disorders. Nidra is one among the primary tripod of life1. Ten patients of stress induced chronic Insomnia (Anidra) have been studied to evaluate the role of psychic traits (Manasabhava) in etiopathogenesis and management of disease.. Dashamula kwatha Shirodhara half an hour daily in morning for 21 days showed highly significant relief on Sleeplessness (61.29%), Distress (63.64%) , Sleep Time, Sleep Quality and Freshness after Awakening (100% each).Relief in mental health has been observed based on Hamilton’s Anxiety Rating Scale, Hamilton’s Depression Raring Scale, Brief Psychiatric Rating Scale and Manasabhav pariksha on Ayurvedic parameters .Key words: Anidra, Psychic traits, Manasabhava, Sleep, Stress, Chronic Insomnia,  Dashamula kwatha Shirodhara
A Plane-Symmetric Inhomogeneous Cosmological Model of Perfect Fluid Distribution with Electromagnetic Field I
A plane-symmetric inhomogeneous cosmological model of perfect fluid
distribution with electro-magnetic field is obtained. The source of the
magnetic field is due to an electric current produced along the z-axis.
is the non-vanishing component of electromagnetic field tensor. To get
a deterministic solution, we assume the free gravitational field is Petrov
type-II non-degenerate. The behaviour of the electro-magnetic field tensor
together with some physical aspects of the model are also discussed.Comment: 11 pages, no figur
Raman Evidence for Superconducting Gap and Spin-Phonon Coupling in Superconductor Ca(Fe0.95Co0.05)2As2
Inelastic light scattering studies on single crystal of electron-doped
Ca(Fe0.95Co0.05)2As2 superconductor, covering the tetragonal to orthorhombic
structural transition as well as magnetic transition at TSM ~ 140 K and
superconducting transition temperature Tc ~ 23 K, reveal evidence for
superconductivity-induced phonon renormalization; in particular the phonon mode
near 260 cm-1 shows hardening below Tc, signaling its coupling with the
superconducting gap. All the three Raman active phonon modes show anomalous
temperature dependence between room temperature and Tc i.e phonon frequency
decreases with lowering temperature. Further, frequency of one of the modes
shows a sudden change in temperature dependence at TSM. Using first-principles
density functional theory-based calculations, we show that the low temperature
phase (Tc < T < TSM) exhibits short-ranged stripe anti-ferromagnetic ordering,
and estimate the spin-phonon couplings that are responsible for these phonon
anomalies
Scaling up Land Restoration Approaches to Reclaim the Hardpans of Niger for Agriculture using Sentinel 2 Imagery
Degraded lands, widespread across sub-Saharan Africa, are used mainly for grazing
and firewood harvesting and have low agricultural production potential. Such areas
have become degraded through overuse and removal of surface cover and associated
erosion processes and are termed hardpans. Hardpans with high clay content, high
cation exchange capacity (CEC) and water holding capacity have productive
potential. ICRISAT has developed and scaled a gender sensitive approach Bioreclamation
of Degraded Land” (BDL) that combines water harvesting technologies
(planting pits, half-moon and trenches), application of compost and plantation of
high value fruit trees and annual drought tolerant indigenous vegetables. In
partnership with CRS in Niger, BDL was scaled to over 3000 villages (2014-18) which
led to many benefits in food security and income generation for the local
population. To scale further multi-spectral remote sensing based imagery of high
resolution (10 m) can identify and map hardpans and differentiate higher potential
sites for the BDL approach. These maps will be used to quantify the area under
hardpans and the potential area in which the interventions can be scaled up
Genetic diversity analysis in tossa jute (Corchorus olitorius L.) germplasm lines
An experiment was conducted to examine the magnitude of genetic diversity and characters contributing to genetic diversity among 81 tossa jute genotypes. Cluster analysis based on Euclidean squared distances and ward’s method, the genotypes were grouped into ten distinct clusters. Analysis reveals that stick weight contributes maximum to the phenotypic diversity (65.52%) followed by green weight (13.64%) and fibre yield (10.10%). Among the clusters Cluster IX recorded highest mean fibre yield (19.91g) followed by Cluster VII (18.94g) and these clusters also recorded high mean values for plant height, basal diameter, green weight and stick weight. The highest inter- cluster distance was 186.80 (between clusters II and X) followed by 161.26 (between clusters IV and X), indicating the wide genetic diversity among these clusters. The highest intra-cluster distance was observed in cluster II (20.34) and the lowest in cluster X (3.17). The average inter-cluster distances were higher than the average intra-cluster distances, which shows the presence of wide genetic diversity among the genotypes of different clusters than those of the same cluster. The first two principal components, whose Eigen values are greater than one, accounted for 74% of the total variation among the five characters. The information obtained from diversity analysis is useful in planning further breeding programme for tossa jute improvement
Genetic Divergence for Yield, Physiological and Quality Traits in Super-Early Pigeon pea (Cajanus cajan. (l.) Millsp.)
The present investigation aimed to study genetic divergence and clustering pattern of 37super-early pigeon pea genotypes. Analysis of variance and hierarchical cluster analysis of tocher’s method revealed significant differences among the genotypes for all the traits under study. Based on genetic distance (D2 value), the 37 genotypes were grouped into 9 distinctive clusters, of which cluster I and II formed the largest clusters with 10 genotypes in each. Among all the characters understudy, leaf area index(LAI) at 60 DAS contributed more to the divergence followed by leaf area (17.02) and leaf area index (12.71) at maturity. Based on the average inter-cluster distance, the cluster III and IX (66.93) tailed by cluster III and VIII (64.86) and cluster VI and VIII (64.06) showed higher inter-cluster distance depicting the wider divergence. Trait-wise selection of diverse parents from the above clusters aids in exploitation of heterosis in superearly pigeon pea
Genetic Variability for Yield, Physiological and Quality Traits in Novel Super-Early Pigeonpea (Cajanus cajan (L.) Millsp.)
Super-early pigeonpea are novel genotypes that are reported to be photoperiod insensitive making it possible to grow it in non-traditional regions. Estimation of genetic parameters would be useful in developing appropriate selection and breeding strategies. A study was conducted to evaluate 37 super-early pigeonpea genotypes to access the magnitude of variability and to study heritable component of variation present in the yield, physiological and quality traits. The results revealed that traits leaf area duration between 60 DAS & maturity followed by leaf area & leaf area index at maturity, net assimilation between 60 DAS & maturity, leaf area index & leaf area at 60 DAS, leaf area duration between 60 DAS & maturity and plant height had high had higher PCV and GCV values. In general, phenotypic coefficients of variation (PCV) estimates were higher than genotypic coefficients of variation (GCV) estimates for all the characters under study, but the difference was relatively small indicating that these characters were less influenced by the environment and selection to improve those traits might be effective. High heritability combined with high genetic advance as a percent of mean was noted for all the traits except protein content conveying the governance of additive gene on trait expression. Anticipating these traits as selection index reaps competent improvement in yield, physiological and quality traits in early maturing pigeonpea
Observation of Dirac-like surface state bands on the top surface of BiSe
Two quintuple layers of strong topological insulator Bi2Se3 are coupled by a
Bi bilayer in BiSe crystal. We investigated its electronic structure using
angle resolved photoelectron spectroscopy to study its topological nature.
Dirac like linearly dispersive surface state bands are observed on the 001
surface of BiSe and Sb doped BiSe, similar to Bi2Se3. Moreover, the lower part
of the SSBs buries deep in the bulk valence band. Overlap region between the
SSBs and BVB is large in Sb doped system and the SSBs deviate from the Dirac
like linear dispersion in this region.
These results highlight the role of interlayer coupling between the Bi
bilayer and the Bi2Se3 QLs.
Furthermore, we observed a large intensity imbalance in the SSBs located at
the positive and negative k parallel directions. This asymmetry pattern
gradually reverses as the excitation energy scans from low 14eV to high 34eV
value. However, we did not observe signal of surface magnetization resulting
from the intensity imbalance in SSBs due to hole-generated uncompensated spin
accumulation in the photoexcitation process. The main reason for this could be
the faster relaxation process for photo hole due to the presence of the Bi
bilayer between the adjacent Bi2Se3 QLs. The observed photon energy dependent
intensity variation could be a signature of the mixing between the spin and the
orbit texture of the SSBs
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