651 research outputs found

    Reversal of Polarisation of Microwaves from Sun-spots

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    On the Propagation of E.M. Waves Through the Upper Atmosphere

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    PASTEURELLOSIS IN DUCK IN WEST BENGAL

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    Two hundred sixty four samples were collected from heart blood, liver, spleen and femur of 85 khaki Campbell ducks of which P. multocida could be isolated from 4 (4.70%) birds. Out of 4 samples, organisms could be isolated from heart blood of one ducklings liver and femur of one duck each. All the isolates were found positive to catalase, oxidase, indole, nitrate reduction test and negative to methyl red, Voges-Proskaur, citrate utilization, H2S production and triple sugar iron test. The isolates fermented glucose and manitol without production of gas and non-fermented lactose, salicin, dulcitol and inositol. The isolates were non-motile and pathogenic to mice. All isolates of P. multocida were sensitive to amoxiclav, chloramphenicol, gentamicin and three isolates were sensitive to co-trimoxazole. All were moderately sensitive to amikacin, cefotaxime, neomycin and norfloxacin and resistant to ciprofloxacin and lomefloxacin

    On the Conditions of Escape of Microwaves of Radio-Frequency Range from the Sun

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    Approximation Algorithms for Connected Maximum Cut and Related Problems

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    An instance of the Connected Maximum Cut problem consists of an undirected graph G = (V, E) and the goal is to find a subset of vertices S \subseteq V that maximizes the number of edges in the cut \delta(S) such that the induced graph G[S] is connected. We present the first non-trivial \Omega(1/log n) approximation algorithm for the connected maximum cut problem in general graphs using novel techniques. We then extend our algorithm to an edge weighted case and obtain a poly-logarithmic approximation algorithm. Interestingly, in stark contrast to the classical max-cut problem, we show that the connected maximum cut problem remains NP-hard even on unweighted, planar graphs. On the positive side, we obtain a polynomial time approximation scheme for the connected maximum cut problem on planar graphs and more generally on graphs with bounded genus.Comment: 17 pages, Conference version to appear in ESA 201

    Temperature dependent photoluminescence of organic semiconductors with varying backbone conformation

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    We present photoluminescence studies as a function of temperature from a series of conjugated polymers and a conjugated molecule with distinctly different backbone conformations. The organic materials investigated here are: planar methylated ladder type poly para-phenylene, semi-planar polyfluorene, and non-planar para hexaphenyl. In the longer-chain polymers the photoluminescence transition energies blue shift with increasing temperatures. The conjugated molecules, on the other hand, red shift their transition energies with increasing temperatures. Empirical models that explain the temperature dependence of the band gap energies in inorganic semiconductors can be extended to explain the temperature dependence of the transition energies in conjugated molecules.Comment: 8 pages, 9 figure

    Verification and Validation of Semantic Annotations

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    In this paper, we propose a framework to perform verification and validation of semantically annotated data. The annotations, extracted from websites, are verified against the schema.org vocabulary and Domain Specifications to ensure the syntactic correctness and completeness of the annotations. The Domain Specifications allow checking the compliance of annotations against corresponding domain-specific constraints. The validation mechanism will detect errors and inconsistencies between the content of the analyzed schema.org annotations and the content of the web pages where the annotations were found.Comment: Accepted for the A.P. Ershov Informatics Conference 2019(the PSI Conference Series, 12th edition) proceedin

    ISOLATION, IDENTIFICATION, PATHOTYPING AND ANTIBIOGRAM OF ESCHERICHIA COLI FROM RECTAL SWAB OF PET DOGS AND CATS

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    Two hundred seventy two rectal swabs were examined from diarrhoeic and nondiarrhoeic pet dogs and cats. Out of 240 samples from dogs, 131 (54.58%) and out of 32 samples from cats, 15 (46.87%) were positive for E. coli by cultural characteristic, gram staining, motility,biochemical reactions and sugar fermentation tests. Out of 146 total positive isolates, only 12 isolates were pathogenic. Out of 12 pathogenic isolates of E. coli 6 isolates were O group non- typable and rest 6 E. coli strains were O25, O86a, O44 and O1 from dogs and O36 and O8 from cats. Out of 12 isolates 9 were sensitive to ceftriaxone, 8 were sensitive to ciprofloxacin and gentamicin, 4 were sensitive to amikacin, neomycin and norfloxacin, 2 were to Co-trimoxazole and 1 was sensitive to lomefloxacin. None of the isolate was sensitive to amoxyclav & cephotaxime

    BIOMARKER OF CLINICAL DIAGNOSIS AND THERAPEUTIC MANAGEMENT OF SUBCLINICAL MASTITIS IN COW

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    The timing of mastitis and sub-clinical mastitis outbreaks often gives important clues to the origin of herd problems. Infection rates are highest before calving, during early lactation, and near dry-off. The goal of every dairy farmer should be to minimize the number of organisms permitted to come into contact with the teats. To simplify the understanding of mastitis complexity, it is useful to detect the severity of the disease as well as diagnosis and therapeutic strategies. Serum amyloid A and haptoglobin are the two major acute-phase proteins and fibrinogen is a minor acute-phase protein in cattle. The therapeutic experiment was conducted by using four groups including Group A animals treated with only Bovimint, Group B animals with Bovimint + Mastotreet, and Group C with Bovimint + Mastotreet + Inj. Enrofloxacin, and Group D with Bovimint + Inj. Enrofloxacin. They are potentially useful as disease markers owing to their low concentration in normal animals, the rapid increase in their concentration during the acute phase of inflammation, and their rapid decrease with the resolution of the disease. To minimize economic losses due to high prevalence, its early detection with suitable tests and appropriate treatment regimen becomes most important. From the study, it was observed that treatment with Bovimint and Inj Enrofloxacin depicted the best recovery of the other treatment groups. Effective antimicrobial coverage along with local application on the udder would be a more suitable regimen of treatment against sub-clinical mastitis

    Is inflammaging an auto[innate]immunity subclinical syndrome?

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    The low-grade, chronic, systemic inflammatory state that characterizes the aging process (inflammaging) results from late evolutive-based expression of the innate immune system. Inflammaging is characterized by the complex set of five conditions which can be described as 1. low-grade, 2. controlled, 3. asymptomatic, 4. chronic, 5. systemic, inflammatory state, and fits with the antagonistic pleiotropy theory on the evolution of aging postulating that senescence is the late deleterious effect of genes (pro-inflammatory versus anti-inflammatory)that are beneficial in early life. Evolutionary programming of the innate immune system may act via selection on these genetic traits. Here I propose that the already acquired knowledge in this field may pave the way to a new chapter in the pathophysiology of autoimmunity: the auto-innate-immunity syndromes. Indeed, differently from the well known chapter of conventional autoimmune diseases and syndromes where the main actor is the adaptive immunity, inflammaging may constitute the subclinical paradigm of a new chapter of autoimmunity, namely that arising from an autoimmune inflammatory response of the innate-immune-system, an old actor of immunity and yet a new actor of autoimmunity, also acting as a major determinant of elderly frailty and age-associated diseases
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