Miracle-dz/UniFAR-FTUs huggingface dataset:
Parametric examination of the destruction of availability due to combustion for a range of conditions and fuels

Parametric Examination of the Destruction of Availability Due to Combustion for a Range of Conditions and Fuels. (August 2005) Praveen Shivshankar Chavannavar, B.En. , Vishweshwaraiah Technological University, India Chair of Advisory Committee: Dr. Jerald A Caton A comprehensive second law analysis of combustion for a range of conditions and fuels was completed. Constant pressure, constant volume and constant temperature combustion processes were examined. The parameters studied were reactant temperature, reactant pressure, equivalence ratio and the fuels themselves. In addition, the contribution and relative significance of the various components (thermo-mechanical, reactive and diffusion) to the mixture availability was examined. Also, the effect of reactant mixture dissociation was incorporated into the combustion analysis. It was found that for similar initial conditions, constant pressure combustion and constant volume combustion exhibited similar trends. For constant temperature combustion, the trend is significantly different from the constant pressure and constant volume combustion, with almost the entire reactant availability being destroyed due to combustion at lower temperatures. Amongst the parameters examined, reactant mixture temperature had the most significant effect on the fraction of availability destroyed during combustion. The percentage availability destroyed reduced from 25 to 30% at 300 K to about 5% at 6000 K for constant pressure and constant volume combustion processes. The effect of the reactant mixture pressure on the fraction of availability destroyed was more modest. The values for the percentage availability destroyed for pressures ranging from 50 kPa to 5000 kPa were found to lie within a range of 5%. The effect of equivalence ratio on the fraction of reactant mixture availability destroyed was also documented. In general, it was found that the destruction of availability decreased with increasing equivalence ratios. This value, however, accounts for the availability due to fuel like species in the product mixture. Therefore, for practical applications, combustion of the stoichiometric mixture would be preferred over the rich equivalence ratios. It was found that the fraction of reactant availability destroyed increased with increasing complexity of the fuel’s molecular structure. In addition, it was shown that the diffusion availability terms is small and may be neglected, while the reactive availability and thermo-mechanical availability are more significant.
E-wom's Role in Driving Purchase Intention during Covid-19 Pandemic

Testimonials are one of the marketing tools that can have a big impact on consumers. Testimony is a form of electronic word of mouth (E-wom) where the information contained in E-wom will be very important as a reference for consumers when they want to make a purchase of a product. This research aims to find out the influence of E-wom quality, E-wom quantity, and E-wom credibility on the purchase intention of fashion products on the online marketplace. The population in this study are people who have visited marketplaces such as tokopedia, shopee, and bukalapak in Surabaya. The sampling method used is purposive sampling, with the number of samples being 385 respondents. Respondent data is collected by distributing questionnaires online. This study used multiple linear regression analysis in SPSS 22 as an analysis tool. The findings of this analysis show that E-wom quality affects purchase intention, E-wom quantity affects purchase intention, and E-wom credibility affects purchase intention.
Uncovering the Effect of Forest Certification on the Dynamic Evolution of the Global Log Trade Network: A Stochastic Actor-Oriented Model Approach

Clarifying the dynamic evolution characteristics and driving mechanism of the global log trade network (GLTN) can provide references for the trade decision-making of various countries. Based on the stochastic actor-oriented model, this paper analyzed the GLTN’s dynamic evolution from 2010 to 2019 and paid more attention to the effect of forest certification on the dynamic evolution of the GLTN. Results indicate that from 2010 to 2019, many changes have occurred in the network. The change rate in the 2010–2015 period is faster than that in the 2015–2019 period. Countries tend to form reciprocity, three-cycles, and transitive trade ties over time. A country with more certified forest area tends to form new log export ties with the other countries. The trade imbalance ratio (TII) has a significant negative mediating effect on the evolutionary relationships between the certified forest area and the log trade network dynamic. Net exporters of log tend to avoid establishing export ties with countries with more certified forest areas over time. Countries with similar cultural backgrounds are easier to establish log trade ties with, while countries with farther geographical distances tend to avoid establishing trade ties over time. A free trade agreement (FTA) has a significant positive impact on the formation of log trade ties among nations. Our findings shed new light on the dynamic evolution mechanism of the global log trade network and offer implications for future trade and forest conservation policy design.
Bromatological characteristics and in vitro digestibility of four sugarcane varieties subjected or not to the application of quicklime - doi: 10.4025/actascianimsci.v34i4.13775

The experiment was conducted to evaluate the bromatological characteristics and the in vitro digestibility of four sugarcane varieties, subjected or not to hydrolysis, with quicklime . A completely randomized design was employed with three replications arranged in a 4 × 2 factorial scheme, with four sugarcane varieties ( SP 52454, RB 867515, RB 855536 and IAC 862480), hydrolyzed or not . There was significant effect on brix (p 0.05 ) in neutral detergent fiber , acid detergent fiber and lignin levels among the sugarcane varieties under analysis and for the sugarcanes, hydrolyzed or not . The use of sugarcane hydrolysis with 1% quicklime improves the in vitro digestibility of NDF and ADF, regardless of the variety studied . H ydrolysis with 1 % quick lime did not alter the sugarcane chemical composition .
Características sociodemográficas de pacientes submetidos à revascularização miocárdica em um hospital de Fortaleza-CE

Teixeira Lima, Francisca Elisângela; Leite de Araújo, Thelma; Magalhães Moreira, Thereza Maria; de Oliveira Lopes, Marcos Venícius; Mesquita de Medeiros, Albeniza CARACTERÍSTICAS SOCIODEMOGRÁFICAS DE PACIENTES SUBMETIDOS À REVASCULARIZAÇÃO MIOCÁRDICA EM UM HOSPITAL DE FORTALEZA-CE Revista da Rede de Enfermagem do Nordeste, vol. 10, núm. 3, julio-septiembre, 2009, pp. 37-43 Universidade Federal do Ceará Fortaleza, Brasil
Lessons Learned in Teaching Science using an Integrative Approach that used the Engineering Design Process

Fifth grade students in a school district in the southeastern United States used robots in their study of science. The study required students to find an optimal path to a volcano and other locations of interest on a grid. The integrative approach offered a unique opportunity to use mathematics and the engineering design process to solve problems. Learning activities led students to define and understand the problem at hand, research ways to access selected locations on the grid, develop a list of requirements and constraints, converge to an optimal path, and share results. Students worked in teams to find solutions to the problems presented. The activities allowed students to build, program, and actuate robots using them as vehicles to access locations of interest, retrieve information, and return to their headquarters in a given time frame. Results demonstrated increased student engagement in learning science and mathematics and a positive impact on learning climate. The paper will present a mixed methods research approach that includes interviews with students and teachers and analysis of data based on students’ solutions.
Institutional isomorphism pressure and multinational corporations’ environmental and social performance

ABSTRACT The influence of institutional isomorphism pressure (IIP) on multinational corporations’ (MNCs) environmental and social responsibility has attracted considerable attention from academics. Therefore, this study uses data from MNCs on the 2019 Forbes Global 2000 list to investigate the relationship between IIP (coercive, normative, and mimetic) and MNCs’ environmental and social performance. Our results show that (1) IIP effectively enhances MNCs’ environmental and social performance; (2) compared with other institutional factors, the current coercive-related institutional factors (e.g. regulations) fail to promote environmental performance, and (3) normative related institutional factors (e.g. social norms) do not improve MNCs’ environmental performance in China and Japan. Our study reveals the relationship between IIP and MNCs’ environmental and social performance and provides a more comprehensive description approach of IIP measurement. Moreover, suggestions on enhancing MNCs’ environmental responsibility by strengthening IIP also provide policymakers and MNCs.
Real-Time Hierarchical Map Segmentation for Coordinating Multirobot Exploration

Coordinating a team of autonomous agents to explore an environment can be done by partitioning the map of the environment into segments and allocating the segments as targets for the individual agents to visit. However, given an unknown environment, map segmentation must be conducted in a continuous and incremental manner. In this paper, we propose a novel real-time hierarchical map segmentation method for supporting multi-agent exploration of indoor environments, wherein clusters of regions of segments are formed hierarchically from randomly sampled points in the environment. Each cluster is then assigned with a cost-utility value based on the minimum cost possible for the agents to visit. In this way, map segmentation and target allocation can be performed continually in real-time to efficiently explore the environment. To evaluate our proposed model, we conduct extensive experiments on map segmentation and multi-agent exploration. The results show that the proposed method can produce more accurate and meaningful segments leading to a higher level of efficiency in exploring the environment. Furthermore, the robustness tests by adding noises to the environments were conducted to simulate the performance of our model in the real-world environment. The results demonstrate the robustness of our model in map segmentation and multi-agent environment exploration.
Comparing the values of anti-TPO and IL-17 among patients with thyroid disorders and comparing them with healthy controls in Ramadi City

Even though most thyroid subjects are undiagnosed due to nonspecific symptoms, universal screening for thyroid disease is not recommended for the general population. In this study, our motive is to compare thyroid autoantibody anti-TPO and IL-17 in addition to traditional thyroid markers TSH, T4, and T3 between two patients' groups (patients with hypothyroidism (TSH) > 6 mIU/L and patients with hyperthyroidism TSH between 0.3 and 6 mIU/L) with a control group. Here a total of 45 subjects were divided into three groups, the first group consisted of 15 patients with hyperthyroidism. The second group consisted of 15 individuals with hypothyroidism, and the control group consisted of 15 healthy individuals. According to our results, an increase in TPO values was observed in all study groups, and the highest increase was recorded in the hyperthyroidism (386.672±116.924), and with regard to interleukin-17 values, a high value was observed in patients with hyperthyroidism (38.1033±5.44) compared to other groups.
Neisseria gonorrhoeae Limits Chlamydia trachomatis Inclusion Development and Infectivity in a Novel In Vitro Co-Infection Model

Chlamydia trachomatis (Ct) and Neisseria gonorrhoeae (Ng) are the most common bacterial sexually transmitted infections (STIs) worldwide. The primary site of infection for both bacteria is the epithelium of the endocervix in women and the urethra in men; both can also infect the rectum, pharynx and conjunctiva. Ct/Ng co-infections are more common than expected by chance, suggesting Ct/Ng interactions increase susceptibility and/or transmissibility. To date, studies have largely focused on each pathogen individually and models exploring co-infection are limited. We aimed to determine if Ng co-infection influences chlamydial infection and development and we hypothesized that Ng-infected cells are more susceptible to chlamydial infection than uninfected cells. To address this hypothesis, we established an in vitro model of Ct/Ng co-infection in cultured human cervical epithelial cells. Our data show that Ng co-infection elicits an anti-chlamydial effect by reducing chlamydial infection, inclusion size, and subsequent infectivity. Notably, the anti-chlamydial effect is dependent on Ng viability but not extracellular nutrient depletion or pH modulation. Though this finding is not consistent with our hypothesis, it provides evidence that interaction of these bacteria in vitro influences chlamydial infection and development. This Ct/Ng co-infection model, established in an epithelial cell line, will facilitate further exploration into the pathogenic interplay between Ct and Ng.
Intrinsic factors affecting sheep meat quality: a review

Summary The quality of meat is a multifactorial parameter dependent on the perspective and goals of the link in the production chain. Generally, a variety of factors directly or indirectly affect the quality characteristics of meat and, therefore, the value of meat products. Often, the literature divides the interfering factors into intrinsic and extrinsic. Intrinsic factors are related to animals; therefore, intrinsic factors are less variable. These factors include breed, sex, age, weight, genes, and type of muscle fiber. Some of these factors are not well studied, others have variable influence or are controversial and only a few are known and sometimes controlled. Thus, this study aimed to review some intrinsic factors that influence the quality of lamb meat. Keywords: cooking losses, meat color, tenderness, water holding capacity. Resumen La calidad de la carne es un parametro multifactorial que depende de la perspectiva y los objetivos del eslabon de la cadena de produccion. En general, una amplia variedad de factores afectan directa o indirectamente la calidad de la carne y, en consecuencia, los valores de los productos carnicos. A menudo, la literatura divide los factores que interfieren intrinseca y extrinsecamente. Los factores intrinsecos estan relacionados con los animales, por lo tanto, son menos variable. Estos factores incluyen la raza, el genero, la edad, el peso, los genes y el tipo de fibra muscular. Algunos de estos factores no estan bien estudiados, otros tienen influencia variable o son polemicos, y solo unos pocos son conocidos y a veces controlados. Por lo tanto, este trabajo pretende revisar algunos factores intrinsecos que influyen en la calidad de la carne de ovino. Palabras clave: capacidad de retencion de agua, color de la carne, perdidas por coccion, terneza. Resumo A qualidade da carne e um parâmetro multifatorial, dependente da perspectiva e objetivos do elo da cadeia produtiva. Geralmente, uma grande variedade de fatores afetam direta ou indiretamente as caracteristicas de qualidade da carne e, consequentemente, os valores dos produtos carneos. Frequentemente, a literatura divide os fatores interferentes em intrinsecos e extrinsecos. Os fatores intrinsecos sao referentes ao animal e, portanto, menos variaveis. Esses fatores incluem raca, sexo, idade, peso, genes e tipo de fibras musculares. Alguns desses fatores nao estao bem estudados, outros tem influencia variavel ou controvertida e somente alguns sao conhecidos e, as vezes, controlados. Dessa forma, objetivou-se revisar alguns fatores intrinsecos que influenciam na qualidade da carne ovina. Palavras chave : capacidade de retencao de agua, cor da carne, maciez da carne, perdas por coccao.
Molecular Processes of Dodder Haustorium Formation on Host Plant under Low Red/Far Red (R/FR) Irradiation

Low R/FR irradiation can promote dodder haustorium formation on the host plant; however, the mechanisms underlying the process are still unknown. In this study, we compared the transcriptomic data during the formation of haustorium of Cuscuta chinensis on host plant Arabidopsis thaliana under low (R/FR = 0.1) versus high (R/FR = 0.2) R/FR irradiation at 12 h, 24 h and 72 h time points. The results show that low R/FR radiation significantly promoted the entanglement and haustorium formation. Transcriptome analysis showed that during the early stage of haustorium formation, low R/FR radiation significantly up-regulated ARR-A related genes and down-regulated peroxidase related genes compared with high R/FR radiation. Meanwhile, during the middle stage of haustorium formation, low R/FR treatment significantly increased the expression of genes related to pectinesterase (PE), polygalacturonase (PG) and pectin lyase (Pel) production, while, during the late stage of haustorium formation, peroxidase (Prx)-related genes were differentially expressed under different R/FR treatments. Overall, our findings show that a low R/FR ratio promotes the parasitism of C. chinensis through plant hormone signal transduction and cell wall degradation pathways. This study provides a basis for the control of parasitic plants.
Negative Physical Self-Concept Is Associated to Low Cardiorespiratory Fitness, Negative Lifestyle and Poor Mental Health in Chilean Schoolchildren

Background: Evidence suggests that physical self-concept (PSC) is linked to well-being in children and adolescents. Objective: The objective was to investigate the association of PSC with mental health (i.e., depression and body image), physical status (i.e., fitness and weight status) and lifestyle (physical activity (PA) patterns and nutritional level) in Chilean schoolchildren. Methods: A total of 617 schoolchildren (n = 271 girls and n = 346 boys) aged 10–14 years participated in this study. Self-concept, depression and body image dissatisfaction were determined by questionnaires. Physical fitness, PA, screen time (ST), Mediterranean diet (MD) adherence and anthropometric parameters were also included. Results: Poor PSC was linked to bad cardiorespiratory fitness (CRF) (<42 VO2max) (OR 1.64; 95%CI 1.12–2.34; p = 0.01), severe body image dissatisfaction (OR 2.51, 95%CI 0.99–6.35; p = 0.05), ST of more than two hours a day (OR 2.1; 95%CI 1.41–3.12; p < 0.001), PA after school of no more than two hours per week (OR 1.52; 95%CI 1.08–2.13; p = 0.015) and depression (OR 1.80; 95%CI 1.1–2.92; p = 0.017). High nutritional level showed an association with general PSC and general self-concept (p < 0.05). Absence of body image dissatisfaction was related to general self-concept (p < 0.01) and physical condition dimensions (p < 0.05). Conclusions: PSC is associated with CRF, PA after school, ST and nutritional level. According to mental health variables, poor PSC is related to depression in Chilean schoolchildren. Therefore, promoting a healthy lifestyle among children should be a target of community- and school-based interventions to promote PSC.
Design of microstrip wide stopband lowpass filter with lumped equivalent circuit

A microstrip lowpass filter using stepped impedance resonator hexangular unit is presented. The proposed lowpass filter (LPF) has some appropriate features such as compact size, low insertion loss and wide stopband. The LPF has cut-off frequency at 2.8 GHz and stopband bandwidth from 3.15 up to 25.5 GHz with attenuation level better than −20 dB. Also, it has in-band insertion loss <0.1 dB and return loss better than 16.5 dB. Simulated and measured results are presented and relatively good agreement between them has been obtained.
Sperm of Fruit Fly Drosophila melanogaster under Space Flight

Studies of reproductive function under long-term space flight conditions are of interest in planning the exploration of deep space. Motility, including the use of various inhibitors, cellular respiration, and the content of cytoskeletal proteins were studied, assessing the level of expression of the corresponding genes in spermatozoa of Drosophila melanogaster, which were in space flight conditions for 12 days. The experiment was carried out twice on board the Russian Segment of the International Space Station. Sperm motility speed after space flight, and subsequently 16 h after landing, is reduced relative to the control by 20% (p < 0.05). In comparison with the simulation experiment, we showed that this occurs as a result of the action of overloads and readaptation to the Earth’s gravity. At the same time, cellular respiration, the content of proteins of the respiratory chain, and the expression of their genes do not change. We used kinase inhibitor 6-(dimethylamino)purine (6-DMAP) and phosphatase inhibitors; 6-DMAP restored the reduced the speed of spermatozoa in the flight group to that of the control. These results can be useful in developing a strategy for protecting reproductive health during the development of other bodies in the solar system.
Effect of Diode Laser and Remineralizing Agents on Microstructure and Surface Microhardness of Therapeutic Gamma-Irradiated Primary Teeth Enamel

BACKGROUND: Radiation caries is a serious complication to head and neck cancer (HNC) radiotherapy, for which the primary teeth are more susceptible to be affected. Preventive protocols are recommended to enhance dental structure resistance against the direct effects of radiotherapy. AIM: The aim of the study is to evaluate the effect of diode laser and two types of remineralizing agents on the microhardness of the primary teeth enamel and examine microstructural alterations. METHODS: Twenty primary molars were sectioned into two halves in a mesiodistal direction, to obtain 40 specimens, which were then randomly allocated into five groups. Group 1 (Control Negative) n = 5 was not subjected to any treatment or radiation. Group 2 (Control positive) n = 5 was gamma irradiated with a dose of 60 Gray. For Groups 3, 4, and 5, specimens were divided into two subgroups: A and B (n = 5/subgroup). Subgroups A were gamma irradiated, then exposed to different surface treatments: 3A:10% nano-hydroxyapatite (nHA) paste, 4A: 5% sodium fluoride varnish (FV), and 5A: diode laser 980 nm. Subgroups B were exposed to surface treatments (3B: 10% nHA, 4 B: 5% FV, and 5B: diode laser 980 nm), then gamma irradiated. Surface micromorphology and microhardness were examined using environmental scanning electron microscope (ESEM), and Vickers microhardness tester, respectively. RESULTS: Group 2 (G) specimens possessed the lowest mean microhardness, while nHA-G (3B), G-Fl (4A), and L-G (5B) had significantly higher values. ESEM analysis showed an alteration in Group G and the obliteration of enamel micropores with remineralizing agents. The melting and fusion of enamel in laser subgroups were also observed. CONCLUSIONS: The findings indicated that using FV, nHA, or diode laser increased microhardness and maintained the integrity of the enamel microstructure. Therefore, applying preventive strategies should be considered in HNC radiotherapy.