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    Tytuł:
    Modelling and optimization of temperature in orthopaedic drilling : An in vitro study
    Autorzy:
    Pandey, R. K.
    Panda, S. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/307028.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    analysis of variance
    ANOVA
    orthopaedic surgery
    response surface methodology
    Taguchi method
    thermal osteonecrosis
    analiza wariancji
    chirurgia ortopedyczna
    metoda Taguchi
    Opis:
    This present investigation uses the Taguchi and response surface methodology (RSM) for modelling and optimization of the temperature produced during bone drilling. The drilling of bone is a common procedure in orthopaedic surgery to produce hole for screw insertion to fixate the fracture devices and implants. A major problem which is encountered during such a procedure is the increase in temperature of the bone due to the plastic deformation of chips and the friction between the bone and the drill. The increase in temperature can result in thermal osteonecrosis which may delay healing or reduce the stability and strength of the fixation. The drilling experiments are conducted on poly-methyl-meth-acrylate (PMMA) (as a substitute for bone) using Taguchi’s L27 experimental design technique. The cutting parameters used are drill diameter, feed rate and cutting speed. The optimum cutting parameters for minimum temperature are determined by using S/N ratios and the effect of individual cutting parameters on temperature produced is evaluated using analysis of variance (ANOVA). A second-order model is established between the drilling parameters and temperature using RSM. The experimental results show that the drill diameter is the most significant drilling parameter affecting the temperature during drilling followed by cutting speed and feed, respectively. The values predicted and the values obtained from experiment are fairly close, which indicates that the developed RSM model can be effectively used to predict the temperature in orthopaedic drilling.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2014, 16, 1; 107-116
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Channel coordination, pricing and replenishment policies in three-echelon dual-channel supply chain
    Autorzy:
    Modak, N. M.
    Panda, S.
    Sana, S. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/206338.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    three-echelon dual-channel
    unit cost decrease
    replenishment policy
    quantity discount
    franchise fee
    Opis:
    This paper addresses pricing, replenishment policies, coordination, and issues of surplus profit division among the members of the dual-channel supply chain for a particular product whose unit cost decreases continuously over product’s life time. In the dual-channel setting, manufacturer, distributor, and retailer with retail channel and the manufacturer’s direct e-channel are considered. When manufacturer is a Stackelberg leader, the paper reveals that the channels are bound to compete with each other on price severely in the centralized as well as decentralized system. It is observed that more preference on the retail channel may lead to non coexistence of profitable retail-e-tail channel which results in a threshold for higher retail price than the online price. The mechanism of all unit quantity discount with agreement of franchise fee coordinates the channel and provides for the win-win outcome. Finally, Nash bargaining over product depicts particular profit division among the channel members. A numerical example is provided in order to test and justify the proposed model.
    Źródło:
    Control and Cybernetics; 2015, 44, 4; 481-518
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cyberchondria among information technology professionals of Bhubaneswar by using cyberchondria severity scale (CSS-15)
    Autorzy:
    Satyarup, D.
    Panda, S.
    Nagarajappa, R.
    Mohapatra, U.
    Powiązania:
    https://bibliotekanauki.pl/articles/28765535.pdf
    Data publikacji:
    2023
    Wydawca:
    Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
    Opis:
    Background. Internet can act as an excellent resource for gaining valuable health related information. However, excessive online research and investigation about health-related issues may impose a negative impact. The term cyberchondria is used to describe a clinical condition in which frequent internet searches for health-related information leads to exaggerated anxieties about physical well-being. Objectives. To determine the prevalence of cyberchondria and associated factors among the information technology professionals of Bhubaneswar in India. Materials and methods. A cross-sectional study was carried out among 243 software professionals in Bhubaneswar using a previously validated Cyberchondria Severity Scale (CSS-15) questionnaire. Descriptive statistics in terms of number, percentage, mean and standard deviation were presented. Independent t-test and one-way analysis of variance was applied to compare the cyberchondria score between two and more than two independent variables respectively. Results. From 243 individuals 130 (53.5%) were males and 113 (46.5%) were females with mean age 29.82±6.67 years. The prevalence of cyberchondria severity was found to be 46.5%. The mean cyberchondria score of all study subjects was 43.80±10.62. It was significantly higher among those who spend more than 1 hour in the internet during night, feel fear and anxiety in visiting the doctor or dentist, interested in gaining the health-related information from other resources and agreed that gaining health related information has increased after COVID-19 pandemic (p˂0.05). Conclusion. Cyberchondria is a growing issue with regard to mental health in developing countries and has the ability to cause anxiety and distress. Appropriate actions must be taken to prevent it on a societal level.
    Źródło:
    Roczniki Państwowego Zakładu Higieny; 2023, 74, 1; 83-91
    0035-7715
    Pojawia się w:
    Roczniki Państwowego Zakładu Higieny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Validity, reliability and prevalence estimates of nomophobia among undergraduate dental students of Bhubaneswar, India
    Autorzy:
    Mohapatra, U.
    Nagarajappa, R.
    Satyarup, D.
    Panda, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/28765380.pdf
    Data publikacji:
    2023
    Wydawca:
    Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
    Opis:
    Background. Considered a modern phobia, Nomophobia (NO MObile PHOne PhoBIA) is a term describing irrational fear or anxiety of being unable to access one’s own mobile phone. Objectives. To develop and validate the nomophobia questionnaire, administering it to a sample of adolescents representing undergraduate dental students. To assess the prevalence of Nomophobia, determine the usage pattern of mobile phones and evaluate the impact due to lack of access to mobile phones among undergraduate dental students. Material and method. A cross-sectional study was conducted on 302 undergraduate students of Bhubaneswar through a self-administered questionnaire via Google Forms consisting of 19 items evaluating the pattern and anxiety related to usage of mobile phones. Responses were recorded on a 5-point Likert scale. Kruskal Wallis, Mann-Whitney U and Chisquare tests were used for statistical analysis. Results. Test-Retest reliability showed kappa of k=0.86 and Internal consistency Chronbach’s-Alpha to be α=0.82. Prevalence of nomophobia (score ≥ 58) was 32.1%, and students at risk of being nomophobic (score 39-57) was 61.9%. It was highest in males (32.6%) and amongst the interns (41.9%) and lowest (25.5%) amongst the second-year students. Participants felt nervous/insecure if their phones were away from them because of the fear that somebody might have accessed their data (3.07±1.93) and or tried to contact them (3.09±1.13) which were not statistically significant (p>0.05). Conclusions. The present study confirms that nomophobia is an emerging behavioural addiction among dental students. Adequate prevention strategies would be helpful in reducing the impact of the chronic mobile usage. Effect of the mobile phone on dental students and the fear of not having it with them is increasing elaborately, that needs to be controlled. Otherwise, it would negatively affect their academic achievement and well-being.
    Źródło:
    Roczniki Państwowego Zakładu Higieny; 2023, 74, 1; 93-102
    0035-7715
    Pojawia się w:
    Roczniki Państwowego Zakładu Higieny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of pre-jamming indication parameter during blind backfilling technique
    Autorzy:
    Panda, S.
    Pal, S. K.
    Murthy, P. V. S. N.
    Powiązania:
    https://bibliotekanauki.pl/articles/91940.pdf
    Data publikacji:
    2016
    Wydawca:
    Główny Instytut Górnictwa
    Tematy:
    subsidence
    abandoned mine
    hydraulic gravity blind backfilling
    data acquisition system
    pressure signature
    pre-jamming indication parameter
    osiadanie
    opuszczona kopalnia
    system akwizycji danych
    pole ciśnieniowe
    Opis:
    Hydraulic blind backfilling is used to reduce subsidence problems above old underground water-logged coal mines. This paper describes experimental research on a fully transparent model of a straight underground mine gallery. An automatic data acquisition systemwas installed in the model to continuously record the sand and water flowrates along with the inlet pressure of the slurry near the model's inlet. Pressure signature graphs and pressure loss curves with bed advancement under different flow conditions are examined. Pressure signature analyses for various flowrates and sand slurry concentrations are conducted to evaluate a pre-jamming indication parameter, which could be used to indicate the arrival of the final stage of filling.
    Źródło:
    Journal of Sustainable Mining; 2016, 15, 3; 100-107
    2300-1364
    2300-3960
    Pojawia się w:
    Journal of Sustainable Mining
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    In vitro evaluation of antimicrobial efficacy of silver zeolite against common oral pathogens
    Autorzy:
    Panda, S.
    Rath, S.
    Garhanayak, M.
    Bal, S.C.B.
    Nagarajappa, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/2086492.pdf
    Data publikacji:
    2021
    Wydawca:
    Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
    Tematy:
    silver zeolite
    oral pathogens
    antimicrobial efficacy
    toxicity analysis
    pharmaceutical applications
    Opis:
    Objectives. Antimicrobial efficacy and toxicity analysis of 5 different concentrations of silver zeolite (SZ) compound against 5 common oral pathogens Streptococcus mutans, Streptococcus pyogenes, Lactobacillus sp., Staphylococcus aureus, Candida albicans. Material and methods. The antimicrobial efficacy of 5 different concentrations of SZ was tested against 5 common oral pathogens using the agar well diffusion method and the MIC and MBC values were determined using the micro broth dilution method. The toxicity of all 5 different concentrations was evaluated using brine shrimp assay and lethal concentration (Lc50) value was determined. Results. At 10 μg/mL the antimicrobial activity of SZ was almost negligible. The antimicrobial activity was observed in an increasing trend against all the test microorganisms as the concentration increased. At 75 & 100 μg/mL the zone of inhibitions was more than the control. Furthermore, MIC and MBC values of SZ with concentrations 25, 50, 75, and 100 μg/mL were determined and recorded. SZ was equally effective against all the test organisms. The LC25 (lethal concentration25) value was 1.6 μg/mL, whereas the LC50 value was 1.77 μg/mL and the LC75 value was 1.90 μg/mL, calculated from the probit computational method. Conclusion. SZ has the potential to change the ongoing system and bring about a revolution as an antimicrobial drug. However, the dose must be regulated as it can be toxic in higher concentrations. SZ compounds with the correct study of physicochemical properties and toxicity analysis can increase their pharmacological use and market value.
    Źródło:
    Roczniki Państwowego Zakładu Higieny; 2021, 72, 2; 203-208
    0035-7715
    Pojawia się w:
    Roczniki Państwowego Zakładu Higieny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An inventory model for generalized Weibull deteriorating items with price dependent demand and permissible delay in payments under inflation
    Model zarządzania zapasem Weibulla dla popytu zależnego od cen oraz opóźnień w płatności w warunkach inflacji
    Autorzy:
    Singh, S. P.
    Panda, G. C.
    Powiązania:
    https://bibliotekanauki.pl/articles/362263.pdf
    Data publikacji:
    2015
    Wydawca:
    Wyższa Szkoła Logistyki
    Tematy:
    inventory
    inflation
    Weibull distribution
    selling price dependent demand
    delay in payment
    zapasy
    inflacja
    dystrybucja Weibulla
    popyt zależny od ceny zbytu
    opóźnienie w płatności
    Opis:
    This paper derives an inventory model is developed for items that deteriorates at a generalized Weibull distributed rate when demand for the items is dependent on the selling price. Shortages are not allowed and price inflation is taken into consideration over finite planning horizon. A brief analysis of the cost involved is carried out by theoretical analysis.
    Praca przedstawia opracowanie modelu zarządzania zapasem dla towarów, które ulegają zużyciu zgodnie z modelem Weibulla, i których popyt zależny jest od ceny sprzedaży. Braki nie są dozwolone. Czynnik inflacji został uwzględniony dla określonego horyzontu czasowego. Została przeprowadzona krótka teoretyczna analiza kosztów.
    Źródło:
    LogForum; 2015, 11, 3; 259-266
    1734-459X
    Pojawia się w:
    LogForum
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Inventorization and Documentation of Herbal Black Salt Preparation by the Apatanese (Abo-Tani) of Apatani Valley in Lower Subansiri District of Arunachal Pradesh (India) using ‘Gonde Unio’ Plant (Ambrosia artemisiifolia L.---Asteraceae)
    Autorzy:
    Panda, Subhasis
    Roy, Priyankar
    Mahanty, Dibyendu S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1192672.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Herbal black salt
    Apatanese
    Apatani valley
    Lower Subansiri
    Arunachal Pradesh
    India
    Opis:
    During the course of field studies at different villages of Apatani valley in Lower Subansiri district of Arunachal Pradesh in November, 2014, first hand new information (Indigenous Traditional Knowledge) of several ethnomedicinal plants were gathered based on oral interviews by the elderly persons, local medicine men, field guides and forest guards belonging to the Apatanese tribe. Total 12 ancient villages (viz., Hong, Bamin-Michi, Mudang Tage, Hija, Hari, Sibey, Tajang, Bulla, Dutta, Bree, Lemba and Pariyami) in and around Hapoli and Ziro (Lower Subansiri district Head Quarter, often called as ‘Apatani valley’) were visited for the purpose of documentation of Indigenous Traditional Knowledge. As these villages dominate friendly Apatani tribes since time immemorial, so Ziro Valley and Hapoli and its surrounding villages are called Apatani valley. These Apatani group of villages are located at altitudes ranging from 2000-2200 m MSL. The Apatani valley has an area of 1058 Km2 of which about 32 Km2 is under agriculture and rest under forests, plantation and settlements (www.unesco.org/tentativelist/5893) indicating their direct dependency to utilize plant resources since time immemorial. During field visit to Kardo hill, authors noticed a piece of black-coloured coal-like material along with an unknown plant (Apatanese called ‘Gonde Unio’) held by an elderly Apatanese woman at Sibe village. She was trying to hide it at first, but after repeated request, she revealed the story of the preparation of herbal black salt from the whole plant of ‘Gonde Unio’. Tapyo (a herbal brownish salt) is very common to the Apatanese, but this black salt including it’s method of preparation and composition is almost different to that of Tapyo. Therefore, this finding is really an interesting ITK, never known to the civilized world except this work and hence this finding is documented here. After a critical study, the ‘Gonde Unio’ plant is identified as Ambrosia artemisiifolia L. (Asteraceae
    Źródło:
    World Scientific News; 2016, 47, 2; 254-266
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Chemical-induced seed germination and enhancement of seed potential of seven wild plant taxa of Ericaceae in India
    Autorzy:
    Chandan Kumar, Pati
    Bhattacharjee, Aloke
    Roy, Priyankar
    Mahanty, Dibyendu S.
    Panda, Subhasis
    Powiązania:
    https://bibliotekanauki.pl/articles/1158777.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Ericaceae
    Seed germination
    T50 of germination
    catalase
    protein
    seed metabolism
    Opis:
    Pretreatment of seeds of seven wild plant taxa (viz., Gaultheria hookeri C. B. Clarke, G. stapfiana Airy Shaw, G. semi-infera (C. B. Clarke) Airy Shaw, G. trichophylla Royle var. ovata Panda & Sanjappa, Lyonia ovalifolia (Wall.) Drude var. ovalifolia, Pieris formosa (Wall.) D. Don and Vaccinium glauco-album C. B. Clarke) in the family Ericaceae using Na-dikegulac (Na-DK) for 8 hours (4 + 4 h in two installments) before keeping in ambient storage condition (32±2 ºC) for different durations (0 and 20 days) slowed down the rapid loss of germination and reduced the time (h) required for 50% seed germination (T50). Concomitantly, the reduction of protein level as well as the activity of catalase of seed kernels during storage period was ameliorated to a significant extent in the chemical pretreated seed lots.
    Źródło:
    World Scientific News; 2018, 114; 249-255
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of different drying treatments on the physicochemical, functional, and antioxidant properties of Bacopa monnieri
    Autorzy:
    Padhiari, B.M.
    Ray, A.
    Jena, S.
    Champati, B.B.
    Sahoo, A.
    Halder, T.
    Ghosh, B.
    Panda, P.C.
    Nayak, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2096812.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Bacopa monnieri (L.) Wettst
    bacoside A
    bacopaside I
    drying treatments
    DPPH assay
    HPLC
    FT-IR
    Opis:
    Bacopa monnieri (L.) Wettst is a very high-value medicinal plant that is commonly used for improving cognitive functions. However, the availability of very limited information on the drying method of B. monnieri has prompted to optimize a suitable drying method. The present study therefore aimed to evaluate the influence of the following six drying treatments on the quality of B. monnieri sample: microwave drying at 300 W and 600 W, hot air-drying at 50EC and 70EC, solar drying, and freeze-drying (FD). The quality attributes of the dried samples were comparatively analyzed in terms of color, total color difference, moisture content, water activity (a w), antioxidant activity, and bacoside A and bacopaside I content. The results of this study showed significant differences (P < 0.05) among the different drying methods in International Commission on Illumination (CIE) parameters, namely lightness index (L*), red-green index (a*), and yellow-blue index (b*), ΔE and a w values. Among the samples dried with the six drying methods, freeze-dried B. monnieri samples had an attractive color with the lowest total color difference value (11.415%), a w value (0.15%), and maximum bacoside A (3.389%) and bacopaside I (0.620%) content. Moreover, Fourier transform infrared spectroscopy (FT-IR) analysis showed no major difference in the functional groups in B. monnieri samples processed by the different drying methods. Considering the retention of quality after drying, FD was found to be very effective for future large-scale production of good quality dried B. monnieri products.
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2021, 102, 4; 399-409
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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