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Roldan, A.,Martinez-Moreno, J.,Roldan, C.,Cho, Y.J. North-Holland ; Elsevier Science Ltd 2014 FUZZY SETS AND SYSTEMS Vol.251 No.-
In recent times, coupled, tripled and quadruple fixed point theorems have been intensively studied by many authors in the context of partially ordered complete metric spaces using different contractivity conditions. Roldan et al. showed a unified version of these results for nonlinear mappings in any number of variables (which were not necessarily permuted or ordered) introducing the notion of multidimensional coincidence point. Very recently, Choudhury et al. proved coupled coincidence point results in the context of fuzzy metric spaces in the sense of George and Veeramani. In this paper, using the idea of coincidence point for nonlinear mappings in any number of variables, we study a fuzzy contractivity condition to ensure the existence of coincidence points in the framework of fuzzy metric spaces provided with Hadzic type t-norms. Then, we present an illustrative example in which our methodology leads to the existence of coincidence points but previous theorems cannot be applied.
Roldan, A.,Martinez-Moreno, J.,Roldan, C.,Cho, Y.J. Koninklijke Vlaamse Ingenieursvereniging 2015 Journal of computational and applied mathematics Vol.273 No.-
In this paper, we study the existence and uniqueness of coincidence points for nonlinear mappings of any number of arguments under a weak (ψ,φ)-contractive condition. Our results generalize, extend and unify several classical and very recent related results in the literature (see Aydi et al. (2011), Berinde (2010), Gnana-Bhaskar and Lakshmikantham (2006), Berzig and Samet (2012), Borcut and Berinde (2012), Choudhury et al. (2011), Karapinar and Luong (2012), Lakshmikantham and Ciric (2009), Luong and Thuan (2011), Roldan (2012)).
C.D.R. Azevedo,A. Baeza,E. Chauveau,J.A. Corbacho,J. Diaz,J. Domange,C. Marquet,M. Martinez-Roig,F. Piquemal,C. Roldan,J. Vasco,J.F.C.A. Veloso,N. Yahlali Korean Nuclear Society 2023 Nuclear Engineering and Technology Vol.55 No.7
In the TRITIUM project, an on-site monitoring system is being developed to measure tritium (<sup>3</sup>H) levels in water near nuclear power plants. The quite low-energy betas emitted by <sup>3</sup>H have a very short average path in water (5 ㎛ as shown by simulations for 18 keV electrons). This path would be further reduced by impurities present in the water, resulting in a significant reduction of the detection efficiency. Therefore, one of the essential requirements of the project is the elimination of these impurities through a filtration process and the removal of salts in solution. This paper describes a water treatment system developed for the project that meets the following requirements: the water produced should be of near-pure water quality according to ISO 3696 grade 3 standard (conductivity < 10 µS/cm); the system should operate autonomously and be remotely monitored.
Effect of Feed Additives in Growing Lambs Fed Diets Containing Wet Brewers Grains
Aguilera-Soto, J.I.,Ramirez, R.G.,Arechiga, C.F.,Mendez-Llorente, F.,Lopez-Carlos, M.A.,Silva-Ramos, J.M.,Rincon-Delgado, R.M.,Duran-Roldan, F.M. Asian Australasian Association of Animal Productio 2008 Animal Bioscience Vol.21 No.10
The study was conducted to evaluate and compare the effects of feed additives on ruminal fermentation, nutrient digestibility and performance of lambs fed diets containing 60% wet brewers grains (WBG). In Experiment 1, two simultaneous trials were conducted. Fifty intact ($20.2{\pm}0.8kg\;BW$) lambs were used in a feedlot trial and 10 (rumen cannulated; $32{\pm}1kg\;BW$) in a digestion trial. The pH, volatile fatty acids (VFA) and ammonia-N in lambs were also estimated. Lambs were randomly assigned to one of five diets: i) without additives (Con), ii) with 1% bicarbonate (Bic), iii) with 1% bentonite (Ben), iv) with 33 mg/kg monensin (Mon) and v) with 200 mg/kg fibrolityc enzymes (Enz). In Experiment 2, 120 RambouilletPelibuey intact male lambs ($19.5{\pm}1.5kg\;BW$) were used in a feedlot trial and randomly assigned to four diets: i) without additives (control), ii) with 1% Bic, iii) with 33 mg/kg Mon and iv) with 1% Bic and 33 mg/kg Mon. In Experiment 1, lambs fed diets containing Bic or Mon had significantly higher final weight, DMI, ADG than other lambs. However, apparent DM, OM, CP, NDF and ADF digestibilities and ruminal individual VFA content were similar (p>0.05) among treatments. Conversely, treatmentcollection period interaction was significant for ruminal pH and NH3. In Experiment 2, lambs fed diets containing a Bic and Mon combination had significantly higher final weight, DMI and ADG. It is concluded lambs fed Bic or Mon or Bic and Mon combination had better performance characteristics than lambs on Ben or Enz.
Kenneth L. Medina(Kenneth L. Medina ),Jeanette Angeline B. Madamba(Jeanette Angeline B. Madamba ),James Roldan S. Reyes(James Roldan S. Reyes ),Agnes T. Banzon(Agnes T. Banzon ),Arlene C. Gutierrez(Ar 아시아무역학회 2022 Journal of Asia Trade and Business Vol.9 No.1
Purpose - Most studies on entrepreneurial intention were focused on developed countries. In developing and agriculture-based economies like the Philippines, there is limited entrepreneurial intention studies conducted among university students, who are potential entrepreneurs in the country. This study intends to bridge this gap by providing insights about the entrepreneurial inclination and entrepreneurial intention of Bachelor of Science in Agriculture (BSA) students at the University of the Philippines Los Baños (UPLB). Design/Methodology/Approach - Ajzen’s (1991) Theory of Planned Behavior (TPB) was utilized to explore factors affecting the entrepreneurial intention of the BSA students. A total of 108 students were surveyed using an online questionnaire, and data analysis tools included Cronbach’s alpha, frequency analysis, chi-square, and binary logistic regression. Data analysis focused on each batch of students. Findings - The study found that Batch 2012 and below showed a greater number of students with high personal attitude, perceived behavioral control, and entrepreneurial intention. On the other hand, Batch 2015 students exhibited the lowest entrepreneurial intention. Generally, the respondents had high entrepreneurial intention; however, low perceived behavioral control or self-efficacy was also recorded. In terms of entrepreneurial inclination, all batches showed high inclination, except for Batch 2015, where the majority of the students did not have an entrepreneurial role model and had not taken an entrepreneurship course or subject. An equation model was constructed for Batch 2015 students, wherein personal attitude and subjective norm were found to be significant with intention. Research Implications - The study findings imply the need for certain colleges in UPLB to undertake strategies tailor-fit for addressing gaps in entrepreneurial inclination and intention for every batch.