85 research outputs found

    KNOWLEDGE INFLUENCE ON PURCHASE INTENTION TOWARDS REMANUFACTURED MOBILE PHONES

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    Consumers' knowledge exerts a great impact on their willingness to make purchase decisions. The present research studied the impact of knowledge on perceived risk, perceived value, and intentions to purchase refurbished mobile phones. Data were collected from randomly selected mobile phone users aged 18 to 50 years old and above. A closed-ended questionnaire was used to collect the data. SPSS and AMOS were utilized for data analysis. The findings indicate a positive influence of previous experience, subjective knowledge, and perceived value on purchase intention. Perceived risk has a negative effect on purchase intentions. Quality knowledge and price knowledge have negative impacts on perceived risk and positive impacts on perceived value. Perceived value is positively influenced by three dimensions of objective knowledge. The theory-based model of this research can be used in future studies on consumer behavior in remanufacturing or closed-loop supply chains. This research provides new findings regarding the influence of knowledge on purchase intention towards remanufactured products

    Gamma Radiolytic Degradation of 4-Chlorophenol Determination of Degraded Products with HPLC and GC-MS

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    Contamination by chlorophenols of surface water and groundwater is an emerging issue in environmental science and engineering. After their usage as pesticide, herbicide and disinfectant, these organic compounds subsequently enter the aquatic environment through a number of routes. Some of the chlorophenols are slightly biodegradable, while others are more persistent and mobile in the aquatic environment especially chlorophenols. Gamma radiolytic degradation is one of advance oxidation process that has been thought to be one of the promising treatments to deal with this problem. This radiolytic study was carried out in methanolic 4-CP (4-chlorophenol) samples. Among several factors effecting radiolytic degradation of 4-CP, dose and concentration are important that were evaluated under atmospheric conditions. A degradation yield (G –value) for 4-CP of 0.38 and 1.35 was achieved in 20 and 100mg/dm3 solution. It was observed that degradation yield decreases with increasing 4-CP concentration. Gamma radiolysis produce free radicals in solvent which further react with 4-CP molecules to generate different products. The identification of degradation products was proposed using HPLC and GC-MS

    3-Acetyl-1-(3-chloro­phen­yl)thio­urea

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    In the title compound, C9H9ClN2OS, the 3-chloro­phenyl and acetyl­thio­urea fragments are oriented at a dihedral angle of 62.68 (5)°. An intra­molecular N—H⋯O hydrogen bond generates an S(6) ring motif. Mol­ecules are linked into dimers via a cyclic R 2 2(8) motif of N—H⋯S hydrogen bonds. These dimers are further connected through C—H⋯S inter­actions, completing an R 2 2(12) motif, into chains along [010]

    Molekularna filogenija i karakterizacija mundri ovce (Ovis aries) u Pakistanu sekvenciranjem mitohondrijskog citokroma b i podjedinice I citokrom oksidaze

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    The main focus of this research is to determine the molecular phylogeny and characterization of Mundri Sheep (Ovis aries) through sequencing of mitochondrial Cytochrome b and Cytochrome Oxidase Subunit I (COI). This sheep breed appears morphologically different from other local sheep breeds of Pakistan. The current research is carried out to appraise the status of Mundri sheep whether it is aa different breed from other breeds or not. Blood samples of Mundri sheep were collected from Livestock Experiment Station, (LES) Fazilpur in district Rajanpur (Punjab). DNA was isolated and subjected to Polymerase Chain Reaction (PCR) for amplification of Cytochrome b and COI genes using appropriate primers. PCR products were sequenced and analyzed by MEGA X software. The phylogeny analysis categorized Ovis aries including Mundri sheep into three and two groups for Cytochrome b and COI genes respectively. It showed Mundri sheep as a separate group and thus as a separate breed from all other local sheep breeds. Hence the study validates based on Cytochrome b and COI that Mundri sheep is a distinctive breed from the rest of the local sheep breed.Glavni je cilj ovog istraživanja bio odrediti molekularnu filogeniju i karakterizaciju mundri ovce (Ovis aries) sekvenciranjem mitohondrijskog citokroma b i podjedinice I citokrom oksidaze (COI). Ova se pasmina ovaca morfološki čini drugačijom od ostalih lokalnih pasmina ovaca u Pakistanu. Ovo je istraživanje provedeno da bi se procijenio status mundri ovce, da bismo mogli odrediti radi li se o pasmini drugačijoj od ostalih pasmina. Uzorci krvi mundri ovce prikupljeni su iz Stanice za eksperimente na stoci (engl. Livestock Experiment Station – LES) Fazilpur u okrugu Rajanpur (Punjab). DNK je izolirana i podvrgnuta lančanoj reakciji polimerazom (PCR) zbog pojačanja citokrom B i COI gena uporabom prikladnih primera. PCR proizvodi su sekvencirani i analizirani pomoću MEGA X softvera. Filogenetska analiza kategorizirala je Ovis aries uključujući mundri ovcu, u tri i dvije skupine za citokrom b, odnosno COI gene. Istraživanje je pokazalo da je mundri ovca posebna skupina i time zasebna pasmina ovaca u odnosu na ostale lokalne pasmine. Na temelju citokroma b i COI, naša je studija potvrdila da je mundri ovca zasebna pasmina i da se razlikuje od ostalih lokalne pasmine ovaca

    On the emission reduction through the application of an electrically heated catalyst to a diesel vehicle

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    Exhaust emissions from diesel engine powered vehicles are considerably high during cold start and warm‐up, because of the poor catalyst performance due to the insufficient catalyst temperature. The controlled heat injection allowed by electrically heated catalysts can effectively reduce the catalyst light‐off time with relatively moderate fuel penalty. This paper compares the exhaust temperature and emissions of a case study diesel vehicle in cold and warm start conditions, and proposes two electrically heated catalyst control strategies, which are evaluated in terms of emission reduction and energy consumption with different target temperature settings. In addition, a new performance indicator, that is, the specific emission reduction, is used to evaluate the after‐treatment system and associated thermal management. For the worldwide harmonized light vehicle test cycle, the results without electrically heated catalyst show that from both cold and warm start conditions a large amount of operating points of the engine is located in the region of partial catalyst light off. Moreover, emissions, especially in terms of carbon monoxide and hydrocarbon, significantly decrease with the electrically heated catalyst implementation, for example, by at least 50% from cold start; however, they still tend to be rather substantial when the fuel is re‐injected after the engine cutoff phases. The exhaust temperature is lower than the target values in the sections of the driving cycle in which the electrically heated catalyst power is saturated according to the maximum level allowed by the device. The carbon dioxide penalty brought by the electrically heated catalyst ranges from 3.93% to 6.65% and from 6.49% to 9.35% for warm and cold start conditions, respectively

    N-(2-Nitro­phenyl­carbamothio­yl)acetamide

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    In the title compound, C9H9N3O3S, the benzene ring and the N-carbamothio­ylacetamide unit are oriented at a dihedral angle of 54.82 (4)°. The dihedral angle between the ring and its attached nitro group is 28.54 (12)°. An intra­molecular, bifurcated N—H⋯(O,O) hydrogen bond generates two S(6) rings. In the crystal, inversion dimers linked by pairs of N—H⋯S hydrogen bonds generate R 2 2(8) loops. Weak C—H⋯O inter­actions link the dimers

    Associations between parenting strategies and BMI percentile among Latino children and youth with intellectual and developmental disabilities

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    Introduction: Maintaining healthy weight is a challenge for all children, and particularly for children with IDD compared to nondisabled children and for Latino children compared to non-Latino White children. Parenting practices related to food intake and physical activity have been found to be important in maintaining children\u27s weight. In this study, we describe the prevalence of overweight and obesity status among Latino children with IDD and their maternal caregivers and determine the relationship between food and physical activity parenting practices and childhood obesity among Latino children with IDD. Methods: We interviewed 94 Latino parent/child dyads and collected information about parenting practices, home environment, and parent and child height and weight using standardized measures. Parent body mass index (BMI) and child BMI percentile were calculated from height and weight. Results: The combined overweight/obesity status for children in our sample was high (60.3%) compared to national rates among nondisabled Latino children (56%) and non-Latino White children with autism (37%). Contrary to research on nondisabled children, we found that greater parental use of controlling dietary strategies was associated with lower BMI percentile in Latino children with IDD. These findings may be indicative of the fact that children with IDD tend to have unique dietary behaviors that warrant more disability and culturally sensitive strategies. Discussion: Our findings suggest that overweight and obesity is especially prevalent for Latino children with IDD and that more research is needed on family factors that promote health in Latino families of children with IDD

    Determinants of food waste: TPB and moderating impact of demographics & guilt

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    Increase in number of people dining out significantly contributes to food waste in restaurants. It is crucial to understand the determinants of food waste. Such determinants are influenced by demographics as well as emotional factors. The present study is meant to understand such factors through the lens of the Theory of Planned Behavior (TPB). Participants’ intentions are influenced by guilt and this study was conducted to examine the moderating role of guilt. Hypotheses were tested with analysis of data collected from 423 participants. Constructs of extended model were analyzed with AMOS (V.21) for structural equation modeling whereas moderations were tested with Process Macro (V.4). Research findings suggest positive relationship of intention with its predictors (attitude, subjective norms, perceived behavioral control), and moderating impact of demographic factors on these relationships. Results also show positive relationship of intention and food waste behavior as well as positive impact of guilt in their relationship. All tested hypotheses were found supported. Theoretically, this study contributes by extending the TBP model and this model can be used in future studies. The present study provides practical implications for policy makers, owners, managers and other staff members of hotels, restaurants or food outlets. The implications, limitations and future research opportunities are discussed at the end

    Students' Behavioural Intention towards Adoption of Online Education: A Study of the Extended UTAUT Model

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    Online education (o-education) is gaining significant attention from education providers, students, and policy makers. This research explored students’ behaviours and intentions towards online education. The present research utilised the Unified Theory of Acceptance and Use of Technology (UTAUT) as a model to investigate these intentions and behaviours. The study incorporated UTAUT predictors along with three additional independent variables. This study adopted a cross-sectional design and used a closed-end questionnaire to collect data from 403 respondents. The data were analysed with SPSS and AMOS by utilising structural equation modeling (SEM) techniques. The results of the SEM analysis indicate that perceived value (PV) and convenience (Cnv) have positive influences on behavioural intention (BI), while perceived risk has a negative impact on behavioural intention (BI). Additionally, facilitating conditions (FC) and behavioural intention (BI) are found to positively influence use behavior (UB). The research findings suggest that demographics, including age, education and gender, influence behavioural intention (BI). The findings of the study have theoretical and practical implications, which are elaborated in the last section of this article
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