116,828 research outputs found
Fixed and coincidence points of hybrid mappings
No full textsummary:The purpose of this note is to provide a substantial improvement and appreciable generalizations of recent results of Beg and Azam; Pathak, Kang and Cho; Shiau, Tan and Wong; Singh and Mishra
author-bios-SRD-19-0063.R1 – Supplemental material for The Network Structure of Police Misconduct
No full textSupplemental material, author-bios-SRD-19-0063.R1 for The Network Structure of Police Misconduct by George Wood, Daria Roithmayr and Andrew V. Papachristos in Socius</p
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Spatial-temporal evolution of the current filamentation instability
No full textThe spatial-temporal evolution of the purely transverse current filamentation instability is analyzed by deriving a single partial differential equation for the instability and obtaining the analytical solutions for the spatially and temporally growing current filament mode. When the beam front always encounters fresh plasma, our analysis shows that the instability grows spatially from the beam front to the back up to a certain critical beam length; then the instability acquires a purely temporal growth. This critical beam length increases linearly with time and in the non-relativistic regime it is proportional to the beam velocity. In the relativistic regime the critical length is inversely proportional to the cube of the beam Lorentz factor gamma(0b). Thus, in the ultra-relativistic regime the instability immediately acquires a purely temporal growth all over the beam. The analytical results are in good agreement with multidimensional particle-in-cell simulations performed with OSIRIS. Relevance of the current study to recent and future experiments on fireball beams is also addressed1541sciescopu
Image 5 in First record of two Pentatomidae bugs from Chandoli area, Kolhapur, Maharashtra, India
No full textImage 5. Andrallus spinidens: ventral view of anterior region showing robust rostrum and hairy legsPublished as part of Ghate, Hemant V., Pathak, Girish P., Koli, Yogesh & Bhawane, Ganesh P., 2012, First record of two Pentatomidae bugs from Chandoli area, Kolhapur, Maharashtra, India, pp. 2524-2528 in Journal of Threatened Taxa 4 (4) on page 2526, DOI: 10.11609/JoTT.o2920.2524-8, http://zenodo.org/record/503220
Some fixed point theorems in metric spaces by altering distances
No full textsummary:A generalization is obtained for some of the fixed point theorems of Khan, Swaleh and Sessa, Pathak and Rekha Sharma, and Sastry and Babu for a self-map on a metric space, which involve the idea of alteration of distances between points
Chitosan-hydroxyapatite Drug Delivery System in Root Canal Filling and Delivery
No full textA root canal is one of the major components of a tooth. It is a long passage full of soft tissues, deep within thg, dentin of the tooth, adjoining the pulp chamber. The major cause of root canal infection is endodontic disease. Endodontic disease is a term used for three clinical conditions, which are: pulpititis, pulpal necrosis, and periradicular periodontitis. For the treatment of these clinical conditions, disinfection of root canal and root canal filling are required. A root canal filling is a deep filling to seal the space inside the roots of tooth to avoid infection of the tooth nerve. The aim of this project was to formulate and evaluate a sustained release, biodegradable local drug delivery system (DDS) for root canal filling. Two different salts of chlorhexidine were used as model drugs. The DDS consisted of chitosan, glyceryl monooleate (GMO), and hydroxyapatite. Tripolyphosphate sodium (TPP) was used as the crosslinker. Effect of drug load (1.1, 2.5, and 4.1 % (w/w)), salt forms used (diacetate vs. digluconate), chitosan concentration (1, 2, and 4 % (w/v)), and cross-linker concentration in the formulation on the in vitro release of chlorhexidine from the delivery system was investigated. The in vitro release was carried out at 37°C in artificial saliva. Chlorhexidine was analyzed by a HPLC method. Increase in the drug load also increased the release rate of the drug from both formulations containing different salts of chlorhexidine. At three different concentrations of chitosan ranging from 1% (w/v) to 4% (w/v), the percentage release of chlorhexidine containing digluconate salt from the DDS within 24 hrs was evaluated. The drug load was kept at 1.1% (w/w). Under these conditions, in vitro release of chlorhexidine was 56.6±12.0, 46.2±7.73, 36.5±13.8 respectively. Under similar experimental conditions, at higher drug load, increase in the chitosan concentration in the formulation retarded the release by 1.3-2 fold. The free flowing property of the implant was lost beyond 4% (w/v) chitosan concentration. To further sustain the drug release, a more hydrophobic salt (diacetete) was investigated. At any particular drug load, the rate of release of chlorhexidine from the digluconate salt was found to be 2 to 3 fold higher than the diacetate salt. At a constant drug load (2.5 % w/w), the release of chlorhexidine (% w/w) from a DDS containing diacetate salt and 4% (w/w) chitosan without a cross-linker was 36.41 ±9.42. With the incorporation of different concentrations of cross-linker at 0.2% (w/w) and 0.4% (w/w) the percentage release of chlorhexidine was found to be 28.76±6.91 and 20.54±5.85 respectively. The percentage of chlorhexidine released from the implants decreased 1.7 fold when TPP concentration increased from 0.0% (w/w) to 0.4 % (w/w). A sustained-release local delivery system containing two different salts of chlorhexidine was developed and evaluated. In vitro release of chlorhexidine from such DDS was dependent upon the different salt forms of chlorhexidine, chitosan concentrations, drug load, and cross-linker concentrations in the formulation. The effects of commercially available formulation (CALG®) with and without GMO on the release of chlorhexidine for a period of 7 days were also investigated. The percentage release of chlorhexidine from the commercially available formulation was found to be 2.04±1.02. Since the percentage release of chlorhexidine was found to be inadequate, attempt was made to modify the release. Polar additives such as GMO were directly incorporated in the formulation. The percentage release of chlorhexidine increased by 2.3 folds due to the incorporation of GMO in the formulation. Even though, incorporation of GMO enhanced the release, the overall release from the commercially product was very slow. Surface topography revealed that addition of GMO to the commercially available formulation substantially changed the crystalline structure of the matrix material. Change in the microstructure and decrease in crystallinity of the matrix might contribute to a higher diffusion of drug from such a matrix.ProQuest Traditional Publishing Optionxvii, 91 page
Image 3a in First record of two Pentatomidae bugs from Chandoli area, Kolhapur, Maharashtra, India
No full textImage 3a. Andrallus spinidens: close up of head and pronotum. Dorsal view showing lateral pronotal spines and impunctate pale line joining the two, crenulations of lateral border and pattern of black punctures near pronotal calliPublished as part of Ghate, Hemant V., Pathak, Girish P., Koli, Yogesh & Bhawane, Ganesh P., 2012, First record of two Pentatomidae bugs from Chandoli area, Kolhapur, Maharashtra, India, pp. 2524-2528 in Journal of Threatened Taxa 4 (4) on page 2525, DOI: 10.11609/JoTT.o2920.2524-8, http://zenodo.org/record/503220
Image 3a in First record of two Pentatomidae bugs from Chandoli area, Kolhapur, Maharashtra, India
No full textImage 3a. Andrallus spinidens: close up of head and pronotum. Dorsal view showing lateral pronotal spines and impunctate pale line joining the two, crenulations of lateral border and pattern of black punctures near pronotal calliPublished as part of Ghate, Hemant V., Pathak, Girish P., Koli, Yogesh & Bhawane, Ganesh P., 2012, First record of two Pentatomidae bugs from Chandoli area, Kolhapur, Maharashtra, India, pp. 2524-2528 in Journal of Threatened Taxa 4 (4) on page 2525, DOI: 10.11609/JoTT.o2920.2524-8, http://zenodo.org/record/503220
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