164 research outputs found
Operations on Intuitionisitc Fuzzy Soft Sets Based on First Zadeh's Logical Operators
No full textIn this paper, we have defined First Zadeh's intuitionistic fuzzy conjunction and intuitionistic fuzzy disjunction of two intuitionistic fuzzy soft sets. The author also defined some of their basic properties of intuitionistic fuzzy disjunction and conjunction with some examples. Nithya. A "Operations on Intuitionisitc Fuzzy Soft Sets Based on First Zadeh's Logical Operators" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-1 , December 2018, URL: https://www.ijtsrd.com/papers/ijtsrd18986.pd
Erratum: SDCF: A software-defined cyber foraging framework for cloudlet environment,” IEEE Trans. Netw. Service Manag. (2020) 17:4 (2423–2435) DOI: 10.1109/TNSM.2020.3015657)
No full textIn the above article [1], the corresponding author was incorrectly identified. The corresponding author is the first author, S. Nithya
The mRNA abundance of histone mRNAs and ARE-containing mRNAs is altered in response to Pin1 silencing.
No full text<p>Heat maps of histone mRNAs (A) and ARE-containing mRNAs (B and C) whose expression was significantly altered in Pin1 siRNA treated cells relative to control cells in the microarray data analysis. The heat maps depict the mean fold-change (F.C) for genes that had a p value <0.2. Panel B shows ARE containing genes that were up regulated in Pin1 siRNA treated cells, panel C shows ARE containing genes down-regulated in Pin1 siRNA treated cells. (D–F) The mRNA levels of a subset of genes that were significantly up or down-regulated in the microarray analysis were analyzed by RT-PCR as described in Methods. In (D), the fold change determined by RT-PCR for a subset of histone mRNAs is shown. Fig. D has been reproduced from (Fig. 7 panel A) Krishnan et al MCB (2012) 32:21, 4306–4322. In (E), data was validated by RT-PCR for a subset of genes that were up-regulated in Pin1 siRNA treated cells, whereas (F) shows data for genes that were down-regulated. Genes for which there was good agreement by both microarray and RT-PCR data are shown as filled bars.</p
A robust and interpretable feature selection pipeline
No full textA feature selection pipeline that removes redundant and irrelevant features without resulting in a significant drop in performance is investigated in this work. The novel pipeline frameworks consider the combined effect of redundancy minimisation through Principal Feature Analysis (PFA) algorithms and relevant feature selection through Causality-Based(Causality-based) methods. These independent methods and pipeline frameworks undergo a comprehensive evaluation upon diverse datasets using a variety of evaluation metrics. It is demonstrated that such methods can significantly decrease the number of features while maintaining a less than proportional drop in performance. The pipelines are also built to be interpretable, with the user being able to know which features are removed at each stage of the pipeline and the reasons for doing so. Pipeline frameworks which incorporate Causality-based methods followed by PFA methods are also computationally efficient and do not take a considerable amount of time. These frameworks also improve upon the performance of the independent PFA and Causality-based methods used, providing a promising tool for interpretable and robust feature selection.Bachelor of Engineering Science (Computer Science
Food insecurity in Spanish adolescents: assessment and associations with psychological wellbeing, body image and disordered eating
No full textIntroducción: La inseguridad alimentaria se define como la falta de accesibilidad y asequibilidad de alimentos seguros y saludables a intervalos regulares. Ha sido una enorme carga de salud pública en Europa desde la crisis económica de 2008. Estudios anteriores han encontrado consecuencias negativas de la inseguridad alimentaria en la salud y el bienestar de los adolescentes.
Objetivo: Este estudio tiene dos objetivos principales. El primer objetivo fue la adaptación y validación del ‘Spanish Child Food Security Survey Module’ (CFSSM-S). El segundo objetivo fue examinar si la inseguridad alimentaria se asocia con un peor bienestar psicológico, la insatisfacción corporal, las alteraciones alimentarias y los malos hábitos alimentarios en adolescentes españoles.
Método: Se realizó un estudio transversal en una escuela de educación secundaria en Cataluña, España, con adolescentes, chicos y chicas (n = 426), de 12 a 16 años. Se utilizaron el CFSSM-S, indicadores del estado socioeconómico (SES) y otros cuestionarios validados en español para evaluar el bienestar psicológico, la imagen corporal, las alteraciones alimentarias y los hábitos alimentarios. Se empleó el MANCOVA para examinar las asociaciones entre la inseguridad alimentaria y las variables Se agregaron como variables de ajuste el SES, la riqueza familiar, el estatus de peso, la edad, el género y el origen.
Resultados: La bondad del ajuste para el modelo de un factor mediante análisis factorial confirmatorio, CFA (error de aproximación cuadrático medio = 0.038, índice de ajuste comparativo = 0.984, índice de Tucker – Lewis = 0.979 ) y la consistencia interna (ω = 0.95) fueron excelentes. La invariancia de la medida del CFSSM-S indicó que puede usarse en ambos sexos, en un amplio rango de edad en adolescentes y con diferentes categorías de estatus de peso, estatus socioeconómico y riqueza familiar. Las diferencias medias para el SES y la riqueza familiar revelaron una tendencia lineal que indica puntuaciones más altas de CFSSM-S en los participantes de menor SES y riqueza familiar. Se encontró que el 18.3% (1.9% = muy baja seguridad alimentaria y 16.4% = baja seguridad alimentaria) de los participantes en este estudio tenían inseguridad alimentaria. Los resultados indicaron un peor bienestar psicológico, una mayor insatisfacción corporal y un mayor deseo de adelgazar en adolescentes con inseguridad alimentaria.
Conclusión: El CFSSM-S es el primer instrumento español de inseguridad alimentaria validado en España con buenas propiedades psicométricas. También, por primera vez, un estudio en España ha examinado las consecuencias de la inseguridad alimentaria en la salud de los adolescentes, encontrando un peor bienestar psicológico, una mayor insatisfacción corporal y mayor deseo de adelgazar en los adolescentes españoles. Sería esencial realizar más estudios en España para confirmar las tasas de prevalencia de inseguridad alimentaria y también para prevenir problemas psicológicos y fisiológicos graves en adolescentes durante la edad adulta.Introduction: Food insecurity is defined as the lack of accessibility and affordability of safe and healthy foods at regular intervals. It has been a huge public health burden in Europe since the economic crisis in 2008. Previous studies have found negative consequences of food insecurity on adolescent health and wellbeing.
Objective: This study focussed on two main objectives. The first objective was the adaptation and validation of the Spanish Child Food Security Survey Module (CFSSM-S). The second objective was to examine whether food insecurity is associated with poor psychological wellbeing, body dissatisfaction, disordered eating and poor dietary habits in Spanish adolescents.
Method: A cross-sectional study was conducted in a secondary school in Catalonia, Spain with adolescent boys and girls (n=426), aged 12-16 years. CFSSM-S, socioeconomic status (SES) indicators and other validated questionnaires in Spanish were employed to assess psychological wellbeing, body image, disordered eating and dietary habits. MANCOVA was employed to examine the associations between food insecurity and the variables. SES, family affluence, weight status, age, gender and ethnicity were added as adjustment variables.
Results: The goodness-of-fit for the one-factor model with Confirmatory Factor Analysis, CFA (root- mean-square error of approximation = 0·038, comparative fit index = 0·984, Tucker–Lewis index=0·979) and internal consistency (ω=0·95) were excellent. The measurement invariance of the CFSSM-S indicated it could be used for both genders, a wide age range of adolescents and different categories of weight status, socioeconomic status SES and family affluence. The mean differences for SES and family affluence revealed a linear trend indicating higher CFSSM-S scores in participants of lower SES and family affluence. 18.3% (1.9%=very low food security and 16.4%=low food security) of participants in this study were found to be food insecure. The results indicated poor psychological wellbeing, greater body dissatisfaction and higher drive for thinness in food insecure adolescents.
Conclusion: The CFSSM-S is the first validated Spanish food insecurity instrument in Spain with good psychometric properties. It is also for the first time that a study in Spain has examined the consequences of food insecurity on adolescent health and found poor psychological wellbeing and greater body dissatisfaction and drives for thinness in Spanish adolescents. It would be essential to conduct further studies in Spain in order to confirm the prevalence rates of food insecurity and also to prevent serious psychological and physiological issues for adolescents during adulthood
Techno-Economic Analysis of Autotrophic Microalgae for Biofuel Production in India
No full textModern society relies on non-renewable sources of energy which is the dominant source of energy, which accounts for nearly 84% of the overall increase in demand between 2005 and 2030 (Khan et al., 2009). The energy requirements are estimated to grow by 55% between 2005 and 2030, according to The International Energy Agency (2011). There is an increased demand for transportation of industrial and agricultural goods in India and more than three-quarters of the petroleum demands are met through imports (Khan et al., 2009). Exhaustion of the global petroleum reserve combined with the growing concern about environmental quality, particularly climate change has increased the search for alternate sources of energy.
With the rapid increases in fossil fuel prices combined with the need for sustainable alternatives has brought microalgae as a source of biofuel back into the research and development (R&D) limelight. Microalgae as a feedstock for biofuel production are attractive as it is a source of clean and renewable energy. Unlike first generation crops, algae do not come into conflict with the food supply. The process of producing biodiesel from carbon neutral biomass can contribute significantly to the development of the rural economy by providing a non-polluting, biodegradable and safe environment (Khan et al., 2009).
However, there are certain technical and economic challenges associated with the microalgae biofuel industry that limits the widespread use of this technology despite several efforts that have been made to solve these problems over the past several decades. For algae biofuels to substitute the fossil fuel industry and ensure sustainable and efficient energy production, distribution and use, a whole new set of technology-related materials and infrastructure needs to be set up to ensure that post-harvest losses are minimized with increased sustainability. The combination of generating energy from wastewater treatment along with a sustainable nutrient cycling addresses the reduction in greenhouse gas emission and the production of biofuels with long term sustainability. Providing long-term targets and supporting policies that stimulate investment in the production of algae biofuels can improve the economic situation. The main focus of this paper is to identify the challenges related to the sustainable production and commercialization of microalgae biofuel
Editorial Comment to Association between body mass index and outcomes in Japanese living kidney transplant recipients: The role of sex differences
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Beyond the Glass Ceiling—Do Women in Senior Positions Face a Precarious Glass Cliff?
No full textWe have read with great interest the recent commentary in JAMA Surgery on challenges to professional advancement facing women surgeons.1 This follows a long series of articles and letters in recent months highlighting issues occurring earlier in female surgical careers, including gender stereotyping affecting surgical trainees and the gender gap that exists in surgical residencies
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