369 research outputs found
IOT future in Edge Computing
With the advent of Internet of Things (IoT) and data convergence using rich cloud services, data computing has been pushed to new horizons. However, much of the data generated at the edge of the network leading to the requirement of high response time. A new computing paradigm, edge computing, processing the data at the edge of the network is the need of the time. In this paper, we discuss the IoT architecture, predominant application protocols, definition of edge computing and its research opportunities
Competition between normal and intruder states inside the "Island of Inversion"
The beta decay of the exotic 30Ne (N=20) is reported. For the first time, the
low-energy level structure of the N=19, 30Na (Tz = 4), is obtained from
beta-delayed gamma spectroscopy using fragment-beta-gamma-gamma coincidences.
The level structure clearly displays "inversion", i.e., intruder states with
mainly 2p2h configurations displacing the normal states to higher excitation
energies. The good agreement in excitation energies and the weak and
electromagnetic decay patterns with Monte Carlo Shell Model calculations with
the SDPF-M interaction in the sdpf valence space illustrates the small d3/2 -
f7/2 shell gap. The relative position of the "normal dominant" and "intruder
dominant" excited states provides valuable information to understand better the
N=20 shell gap.Comment: 4 pages, 5 figure
A study of prescribing pattern of drugs in patients of cardiovascular emergencies at a tertiary care hospital of Western Maharashtra
Background: The main objective of drug utilization research is to assess the rationality of drug use. Recently it has been found that cardiovascular disease is the most frequent cause of morbidity and mortality throughout the world. The objective of present study was to focus on the trends in prescribing patterns of most frequently treated cardiovascular emergencies.Methods: A retrospective descriptive study was carried out in cardiovascular emergency patients. From the medical records the following data was collected: Distribution of cardiovascular emergencies (age and sex wise), most common cardiovascular emergencies treated, outcome of each patient, average duration of stay in the hospital and drugs prescribed per patient, correlation of clinical outcome with treatment if possible, drug utilization trend in cardiovascular emergencies. From the data, master chart was prepared for data analysis.Results: Total 82 patients case records were studied. Myocardial infarction (50%) was the most common cardiovascular emergency treated during study period followed by unstable angina (36.58%). Male to female ratio was 1.83. Average hospital stay was found 5.75 days. The average number of drugs per patient was 8.4. Hypertension (42.24%) and diabetes mellitus (19.51%) were the most common comorbidities found associated with cardiovascular emergencies. Aspirin clopidogrel combination (80.49%), enoxaparin (75.61%), atorvastatin (73.17%), glyceryl trinitrate (73.17%) were the most commonly prescribed drugs. The utilization rate of ACE inhibitors and ARBs (56.10%) was found higher than that of beta blockers (28.05%). Stool softeners (52.46%) and anxiolytics (28.58%) were the most commonly used non-cardiovascular drugs. Improvement was seen in 82.93% patients.Conclusions: Protocol of management strategy of cardiovascular emergencies in our tertiary care hospital was found near to standard recommended guidelines. Keywords:
Use of a folding model and in situ spectroscopic techniques for rational formulation development and stability testing of Monoclonal antibody therapeutics
Aggregation is a critical issue that hampers the development of monoclonal antibody therapeutics (Mabs). Traditionally, aggregation is considered a process in which native forms of proteins are transformed into an unstable highly associated form through an intermediate formation step. Here we describe the unfolding of an anti CD40 antibody using a folding model based on Lumry-Eyring nucleated polymerization (LENP) model. This model captures several experimental features of the thermal unfolding of this protein as studied by common in situ biophysical techniques such as circular dichroism, fluorescence spectroscopy and turbidity measurements. According to this model, the unfolding and aggregation of the anti CD40 antibody is determined by several distinct steps that include conformational change(s) to generate aggregation prone states, reversible oligomer formation, nucleation and growth as well as their kinetics and the formation of higher order assemblies/aggregates. Furthermore, the loss of monomer is controlled by both thermodynamic (equilibrium unfolding) and kinetic determinants of the unfolding process. This approach captures both of these rate-limiting steps. It can be concluded that this approach is sensitive to formulation conditions such as protein concentration, changes in buffer conditions, and temperature stress. The potential use of this approach in formulation development and stability testing of Mabs is discussed
Multimodal Treatment Eliminates Cancer Stem Cells and Leads to Long-Term Survival in Primary Human Pancreatic Cancer Tissue Xenografts.
Copyright: 2013 Hermann et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.PURPOSE: In spite of intense research efforts, pancreatic ductal adenocarcinoma remains one of the most deadly malignancies in the world. We and others have previously identified a subpopulation of pancreatic cancer stem cells within the tumor as a critical therapeutic target and additionally shown that the tumor stroma represents not only a restrictive barrier for successful drug delivery, but also serves as a paracrine niche for cancer stem cells. Therefore, we embarked on a large-scale investigation on the effects of combining chemotherapy, hedgehog pathway inhibition, and mTOR inhibition in a preclinical mouse model of pancreatic cancer. EXPERIMENTAL DESIGN: Prospective and randomized testing in a set of almost 200 subcutaneous and orthotopic implanted whole-tissue primary human tumor xenografts. RESULTS: The combined targeting of highly chemoresistant cancer stem cells as well as their more differentiated progenies, together with abrogation of the tumor microenvironment by targeting the stroma and enhancing tissue penetration of the chemotherapeutic agent translated into significantly prolonged survival in preclinical models of human pancreatic cancer. Most pronounced therapeutic effects were observed in gemcitabine-resistant patient-derived tumors. Intriguingly, the proposed triple therapy approach could be further enhanced by using a PEGylated formulation of gemcitabine, which significantly increased its bioavailability and tissue penetration, resulting in a further improved overall outcome. CONCLUSIONS: This multimodal therapeutic strategy should be further explored in the clinical setting as its success may eventually improve the poor prognosis of patients with pancreatic ductal adenocarcinoma
Crystalline silicon surface passivation by thermal ALD deposited Al doped ZnO thin films
The evidence of good quality silicon surface passivation using thermal ALD deposited Al doped zinc oxide (AZO) thin films is demonstrated. AZO films are prepared by introducing aluminium precursor in between zinc and oxygen precursors during the deposition. The formation of AZO is confirmed by ellip-sometry, XRD and Hall measurements. Effective minority carrier lifetime (tau(eff)) greater than 1.5ms at intermediate bulk injection levels is realized for symmetrically passivated p-type silicon surfaces under optimised annealing conditions of temperature and time in hydrogen ambient. The best results are realised at 450 degrees C annealing for > 15min. Such a layer may lead to implied open circuit voltage gain of 80mV
Distribution of the color fields around static quarks: Flux tube profiles
We report detailed calculations of the profiles of energy and action
densities in the quark-antiquark string in SU(2) lattice gauge theory.Comment: 40 pages, LSUHE 94-15
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Further evidence for the involvement of EFL1 in a Shwachman-Diamond-like syndrome and expansion of the phenotypic features.
Recent evidence has implicated EFL1 in a phenotype overlapping Shwachman-Diamond syndrome (SDS), with the functional interplay between EFL1 and the previously known causative gene SBDS accounting for the similarity in clinical features. Relatively little is known about the phenotypes associated with pathogenic variants in the EFL1 gene, but the initial indication was that phenotypes may be more severe, when compared with SDS. We report a pediatric patient who presented with a metaphyseal dysplasia and was found to have biallelic variants in EFL1 on reanalysis of trio whole-exome sequencing data. The variant had not been initially reported because of the research laboratory's focus on de novo variants. Subsequent phenotyping revealed variability in her manifestations. Although her metaphyseal abnormalities were more severe than in the original reported cohort with EFL1 variants, the bone marrow abnormalities were generally mild, and there was equivocal evidence for pancreatic insufficiency. Despite the limited number of reported patients, variants in EFL1 appear to cause a broader spectrum of symptoms that overlap with those seen in SDS. Our report adds to the evidence of EFL1 being associated with an SDS-like phenotype and provides information adding to our understanding of the phenotypic variability of this disorder. Our report also highlights the value of exome data reanalysis when a diagnosis is not initially apparent
Exchange of plant genetic resources: Prospects in India
National Bureau of Plant Genetic Resources has the major responsibility of introducing genetic resources and distributing the same to various research Institutes/organizations within the country. It is involved in enrichment of plant genetic resources through germplasm exchange, procurement and collection from centres of diversity suitable for different agro-climatic conditions. Different biotic and abiotic stresses are the major production constraints in many crops, hence, introduction of crops from the centre of diversity is much needed to bring into superior seeds of various crops with high yield, quality, resistance to pest and diseases and tolerant to abiotic stresses through crop improvements programmes. Future emphasis is to introduce specific genotypes with special characters especially like high quality lines and lines resistant to various biotic and abiotic stresses. During the past five years 211 298 accessions including 467 995 samples of seed/planting material were introduced from 103 countries. Out of theses 116 149 accessions having 138 352 samples were germplasm while 58 024 entries having 329 704 samples were trials/nurseries entries and 1 139 wild species of different agri-horticultural crops were also introduced. During this period a total of 78 298 accessions were exported as per norms/regulation lay down by NBA and with permission of ICAR/DARE, for research purposes only. NBPGR has supplied 50 657 samples of various crops to national users in different institutes/organizations across the country for various crop improvement and breeding programmes
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