Matter Of Research Interest Research Articles

VẬN DỤNG QUY TRÌNH TƯ DUY THIẾT KẾ NHẰM ĐỀ XUẤT QUY TRÌNH THIẾT KẾ ĐỒ DÙNG DẠY HỌC ĐÁP ỨNG CHƯƠNG TRÌNH GIÁO DỤC PHỔ THÔNG 2018

In order to increase the opportunities for students to practice and experience meeting the goals of the 2018 General Education Program, using teaching aids to support the teaching process is one of the necessary and effective solutions. Therefore, proposing a process for designing teaching aids is a matter of research interest. The article has proposed a process for designing teaching aids by concretizing the design thinking process. In addition, to increase the reliability of the proposed process, expert surveys were conducted. From there, the article also illustrates the use of the proposed process to establish the design and manufacture of teaching aids for the “Spatial Geometry” content of Mathematics. This result contributes to suggestions for teachers and educators in designing teaching aids to improve students’ competence in the current educational context. Keywords: Design thinking; teaching materials; general curriculum.

Research Review Inquisitive on Indoor Air Quality Monitoring System Facilitate with Internet of Things

In recent days, Indoor Air Quality (IAQ) has become a matter of interest for researchers from both scientific and industrial community. During pandemic situation public settle more time at indoor in place of outdoor environment. With rapid growth in science and technology people have progressive necessity for active facility parameters with respect to indoor temperature, humidity and wind movement etc. Asthma, lung cancer, hypertension, cardiovascular issues, and respiratory illnesses are just a few of the chronic health issues that have been linked to frequent exposure to hazardous material in enclosed spaces. However, real-time monitoring technologies are being adopted in smart city projects to identify and remedy such unfavourable conditions, ultimately improving the general quality of life. This paper surveyed the current proposed IAQ monitoring systems in terms of Internet of Things (IoT). In addition, the research work highlights composition of diverse monitoring systems, research summary, challenges together implying future directions for the researchers. The current level of knowledge on the close relationship between IoT and IAQ is presented in this research.

Paper-based multiplex biosensors for inexpensive healthcare diagnostics: a comprehensive review.

Multiplex detection is a smart and an emerging approach in point-of-care testing as it reduces analysis time and testing cost by detecting multiple analytes or biomarkers simultaneously which are crucial for disease detection at an early stage. Application of inexpensive substrate such as paper has immense potential and matter of research interest in the area of point of care testing for multiplexed analysis as it possesses several unique advantages. This study presents the use of paper, strategies adopted to refine the design created on paper and lateral flow strips to enhance the signal, increase the sensitivity and specificity of multiplexed biosensors. An overview of different multiplexed detection studies performed using biological samples has also been reviewed along with the challenges and advantages offered by multiplexed analysis.

Longitudinal study of the course and outcome of first-episode psychosis

BackgroundStudy of first episode psychosis (FEP), an episode of psychotic nature, which manifests for the first time in an individual in the longitudinal continuum of his/her illness, has been a matter of research interest in recent years, as this may give more insight to the overall phenomenology and course of psychotic illnesses. MethodsA study was undertaken to evaluate course and outcome of first episode psychosis. A total of 100 consecutive inpatients were selected for the study. Informed consent was obtained. Structured Proforma was used for recording psychosocial profiles and relevant medical history. Brief Psychiatric Rating Scale (BPRS) was given to assess the severity of psychopathology; Positive and Negative Symptom Scale (PANSS) to assess the severity of psychosis; Becks Suicidal Ideation Scale (BSI) to assess the extent of suicidality and Global Assessment of Functioning (GAF) to assess global functioning of the individual. The assessment was done at baseline, at six months, and at one year. ResultsFirst episode psychosis constituted around a tenth of the caseload. It commonly affected people in the third decade of life. There was an improvement in 92% of the cases over a year of study. Schizophrenia constituted the majority of first episode psychosis. The history of smoking was relatively higher in acute and transient psychotic disorders. Age inversely correlated with the severity of psychopathology. There was no difference in improvement in psychopathology over time in patients of schizophrenia and related disorder vis--vis other psychotic disorders. ConclusionOur study did not find any significantly varied sociodemographic factors in the course and outcome of the illness. It also refuted the schism between various types of psychosis based on the current classificatory system. It draws our attention toward the unitary concept of psychosis and is a call to re-think our strategies in the management of psychosis.

Associations between blood heavy metal(loid)s and serum heme oxygenase-1 in pregnant women: Do their distribution patterns matter?

The relationship between heavy metal(loid)s exposure and oxidative stress damage is a matter of research interest. Our study aimed to investigate the distribution patterns of the nine heavy metal(loid)s in blood of pregnant women, including four toxic heavy metal(loid)s [arsenic (As), cadmium (Cd), lead (Pb) and mercury (Hg)] and five typical heavy metal(loid)s [manganese (Mn), cobalt (Co), copper (Cu), zinc (Zn), and selenium (Se)] in blood. Blood samples of 348 women were collected and their concentrations in the serum (sr) and blood cells (bc) were measured, as well as serum heme oxygenase-1 (HO-1) (an oxidative stress marker). Total blood (tb) concentrations of these metal(loid)s and serum-to-blood cell concentration ratios (sr/bc) were further calculated. We found Cu mainly accumulated in the serum compared to the blood cells with Cusr/bc = 2.30, whereas Co, Se, and As evenly distributed between these two fractions. Other metal(loid)s mainly concentrated in the blood cells. Cosr, Cusr, Cubc, Mnbc, Znbc, Cdbc, Cotb, Cutb, Mntb, Zntb, Cdtb, and Cusr/bc were negatively associated with serum HO-1, whereas Assr, Asbc, Astb, Znsr/bc, Cdsr/bc, and Hgsr/bc were positively, indicating of their potential toxicity. We concluded that the distribution patterns of blood heavy metal(loid)s, in particular for Cd, Hg and Zn, which either increased in serum or decreased in blood cells, might be associated with elevated serum oxidative stress, should be considered in environmental health assessments.

Impact of Social Networking Sites on Human Basic Privacy Rights

In recent era, Social networking sites (SNSs) have become an important source of communication and also became a matter of interest for researchers in several disciplines such as communications, technology and sociology. These Social networking sites including Facebook, Twitter etc. often reveal private data through the enclosure of public profiles, photographs, videos and messages send to the family, friends and general public. As it was not possible to conduct a survey in complete population, therefore sample of 250 respondents (50% males & 50% females) was selected from different universities and colleges of Lahore, city of Pakistan. In the process of survey, questionnaire technique has been used to obtain the quantitative data. The findings revealed that Social Networking Sites significantly violate the human basic privacy rights. Majority of the respondents were of the view that privacy rights are harmed by SNSs. 10.4% respondents were strongly disagreeing about the statement that Facebook privacy is a real problem, 18.0% were disagree, 20.4% were neutral about the problem while 38.4% said they are agreed and 12.8% were strongly agree. The results also suggested that social networking sites leak personal data and also become a reason for disclosure of personal information.

Arrhenius Equation Modeling for the Oxidative Stability Evaluation of Echium Oil Enriched with a Natural Preservative

AbstractThe present study evaluates the oxidative stability of refined echium oil supplemented with Sophora japonica L. extract (200 ppm). Commonly used synthetic antioxidants (butylated hydroxytoluen (BHT), ascorbyl palmitate, and quercetin) are used as reference additives. The plant extract is evaluated to possess better in vitro antioxidant potential than BHT, and comparable to that of quercetin. The degradation kinetics at 6, 25, and 60 °C with and without antioxidants is studied, as well as the progress of oil oxidation. The temperature dependence of oxidation is expressed with the Arrhenius equation in addition to reaction rate constant (k) and activation energy (Ea) also determined using Arrhenius equation. Enthalpy of activation (ΔH‡), entropy of activation (ΔS‡), and Gibb's free energy of activation (ΔG‡) are calculated according to the Eyring equation. It is established that the rate constant increased with the temperature of storage. The lipid oxidation reactions are established to follow a zero‐order kinetic model for peroxide value. The oxidation reaction is determined as exothermic and non‐spontaneous. In conclusion, S. japonica extract is evaluated with high antioxidant potential and can be used as a promising oil stabilizer. It can successfully be added to prevent lipid structure oxidation while providing health benefits to consumers.Practical Applications: The application of natural antioxidants in edible oils in order to substitute synthetic additives is a matter of research interest. The present study aims to compare commonly used synthetic antioxidants with natural ones. Ascorbyl palmitate has the greatest ability to stabilize echium oil at 6, 25, and 60 °C, but the Sophora japonica L. extract possesses good potential for retarding the oxidation. The results of this study outline the potential of the natural extract of S. japonica, which needs to be further studied.

Impact of Social Networking Sites on Human Basic Privacy Rights

In recent era, Social networking sites (SNSs) have become an important source of communication and also became a matter of interest for researchers in several disciplines such as communications, technology and sociology. As SNSs are spreading rapidly, new issues regarding privacy and security are also raising. These Social networking sites including Facebook, Twitter etc. often reveal private data through the enclosure of public profiles, photographs, videos and messages send to the family, friends and general public. That is why the researcher is concerned to investigate the impact of Social networking sites (SNSs) on human basic privacy rights. As it was not possible to conduct a survey in complete population, therefore sample of 250 respondents (50% males & 50% females) was selected from different universities and colleges of Lahore, city of Pakistan. In the process of survey, questionnaire technique has been used to obtain the quantitative data. The findings revealed that Social Networking Sites significantly violate the human basic privacy rights. Majority of the respondents were of the view that privacy rights are harmed by SNSs. 10.4% respondents were strongly disagreeing about the statement that Facebook privacy is a real problem, 18.0% were disagree, 20.4% were neutral about the problem while 38.4% said they are agreed and 12.8% were strongly agree. The results also suggested that social networking sites leak personal data and also become a reason for disclosure of personal information. Hence, it is necessary when a user involves in the Social networking site he/she should be aware and vigilant of the privacy and security risks.

Dysfunctional internet behaviour symptoms in association with personality traits.

Internet addiction is a matter of great interest for researchers, taking into consideration Internet's rapid spread and its ever growing use in children, adolescents and adults. It has been associated with multiple psychological symptoms and social difficulties, therefore raising even greater concerns for its adverse consequences. The present study that consists part of a broader research, aims to investigate the association between excessive Internet use and personality traits in an adult population. Specifically, the research examined the relation between dysfunctional internet behaviour and personality traits as neuroticism and extraversion, the two personality dimensions that have arisen as the most important ones in all relevant research. Our main hypotheses are that dysfunctional internet behaviour would be positively associated with neuroticism but negatively linked to extraversion. The 1211 participants aged over 18 years, completed the IAT (Internet Addiction Test) by Kimberly Young and the Eysenck Personality Questionnaire (EPQ) and some other questionnaires detecting psychopathology. Additionally, part of the administered questionnaires concerned socio-demographic characteristics of the participant subjects: specifically sex, age, marital status, education (educational years), place of residence -urban, semi-urban and rural-, whether they suffer from somatic or mental health disorder and if they take medication for any of the above categories. All the questionnaires have been electronically completed by each participant. Results showed that 7.7% showed dysfunctional internet behaviour that concerns both medium and severe degree of dependence by the use of Internet, as measured by the use of IAT. The univariate logistic regression analysis revealed that the individuals exhibiting symptoms of dysfunctional internet behaviour were more likely to suffer from a chronic mental health disorder, to use psychotropic medication and to score higher on neuroticism. In contrast, they were less likely to have children and be extraverted. Multiple logistic regression analysis confirmed that neuroticism and extraversion were independently associated with dysfunctional internet behaviour. Individuals with high scores on neuroticism were more likely to meet the criteria for dysfunctional internet behaviour, while high scores on extraversion were associated with a lower probability of dysfunctional internet behaviour. Identification of personality traits that could be connected to some sort of "addictive personality" -particularly neuroticism and Introversion- might help researchers to identify and prevent internet addiction on the early stages and possibly could have a positive contribution to the therapeutic treatment of this addiction disorder.

CHARACTERIZATION OF PSYCHOLOGICAL AND PHYSICAL DEVELOPMENT IN CHILDREN OF GESTATION DIABETES PREGNANCIES

The physical and neurological development of children born to mothers with gestation diabetes mellitus (GDM) is a matter of research interest. We examined 28 children whose mothers were diagnosed with GDM, in the newborn period and at 6 months. By the parameters of physical development at birth the number of children with outstripping development and the average body mass index (BMI) was predominant and by the end of the first semester of life most of the children had the values of the average parameters specified above, that is, normal for that age, range, but the proportion of the deficient BMI remained unchanged. Insulin therapy during pregnancy had no significant impact on the frequency characteristics of children with physical development disorders. The neurological disorders of the six-month-old children born of women with gestation diabetes mellitus and non-targeted metabolic control were more severely represented by sensory sphere disturbances and interaction with subjects; to a lesser extent - by emotional and voice development. The children of this group had the minimum disturbances in the development of the motor sphere.

Preferencias y frecuencia de consumo de derivados cárnicos por parte de estudiantes universitarios de Medellín, Colombia

Introducción: El consumo de derivados cárnicos en universitarios se ha venido incrementando en los últimos años, convirtiéndose en un factor de riesgo en esquemas de alimentación saludable, por lo cual es de vital interés por parte de los investigadores en las áreas de la salud y la nutrición, identificar las preferencias y frecuencia de consumo de estos productos para establecer estrategias de intervención.Material y Métodos: El tamaño de la muestra fue de 400 estudiantes, seleccionados aleatoriamente de acuerdo con los factores de ponderación: sexo, nivel socioeconómico y tipo de universidad, teniendo en cuenta un intervalo de confianza del 95% y un error máximo permisible del 5%. Los datos fueron analizados utilizando análisis multivariado de la varianza (MANOVA), análisis de comparación método Z.Resultados: Se encontró que el consumo de derivados cárnicos tiene una alta frecuencia y mayor preferencia de consumo en hombres (p=0,0139), en estrato bajo (p=0,0457) y en universidades públicas (p=0,0311).Conclusiones: El consumo de embutidos en universitarios es alto, especialmente en el sexo masculino, por lo cual se requiere implementar programas de educación sobre hábitos de consumo saludable.

Quantifying Slumness with Remote Sensing Data

The presence of slums in a city is an indicator of poverty and its proper delimitation is a matter of interest for researchers and policy makers. Socio-economic data from surveys and censuses are the primary source of information to identify and quantify slumness within a city or a town. One problem of using survey data for quantifying slumness is that this type of data is usually collected every ten years and is an expensive and time consuming process. Based on the premise that the physical appearance of an urban settlement is a reflection of the society that created it and on the assumption that people living in urban areas with similar physical housing conditions will have similar social and demographic characteristics (Jain, 2008; Taubenb¨ock et al., 2009b); this paper uses data from Medellin City, Colombia, to estimate slum index using solely remote sensing data from an orthorectified, pan-sharpened, natural color Quickbird scene. For Medellin city, the percentage of clay roofs cover and the mean swimming pool density at the analytical region level can explain up to 59% of the variability in the slum index. Structure and texture measures are useful to characterize the differences in the homogeneity of the spatial pattern of the urban layout and they improve the explanatory power of the statistical models when taken into account. When no other information is used, they can explain up to 30% of the variability of the slum index. The results of this research are encouraging and many researchers, urban planners and policy makers could benefit from this rapid and low cost approach to characterize the intra-urban variations of slumness in cities with sparse data or no data at all.

Obesity and asthma

Asthma is a chronic disorder affecting millions of people worldwide. The prevalence of asthma is around 300 million and is expected to increase another 100 million by 2025. Obesity, on the other hand, also affects a large number of individuals. Overweight in adults is defined when body mass index (BMI) is between 25 to 30 kg/m2 and obesity when the BMI >30 kg/m2. It has been a matter of interest for researchers to find a relation between these two conditions. This knowledge will provide a new insight into the management of both conditions. At present, obese asthma patients may be considered a special category and it is important to assess the impact of management of obesity on asthma symptoms.

A Survey of Hybrid Schemes for Location Estimation in Wireless Sensor Networks

Nowadays, the issues concerning wireless sensors nodes localization estimation is still a matter of research interest. This is driven by the complexity and the diversity of current and future wireless sensor networks applications. Several single schemes have been proposed and studied for location estimation, each with its own advantages and limitations. Furthermore, a number of hybrid schemes have been also proposed for the sake of generality and diversity of applications and the limitations of the single schemes. Some of the hybrid solutions combine measurements from more than a single technique to improve the estimation accuracy by employing data fusion. This paper presents a survey of single and fusion based hybrid location techniques.

Nutrient absorption, feed intake and liveweight change as a consequence of Roux-en-Y gastric bypass with increasing alimentary limb lengths in the pig model

Roux-en Y gastric bypass (RYGBP) combines a restrictive and malabsortive component of the digestive system. Metabolic outcomes of increasing the latter, is a matter of research interest. The aim of this study was to evaluate the nutritional consequences of RYGBP with different alimentary limb lengths using a pig model. Twenty-six pigs were randomly assigned to four laparoscopic procedures: RYGBP with 300 cm of alimentary limb (T300); RYGBP with 600 cm (T600); RYGBP with 900 cm (T900); sham operation (TS). RYGBP consisted of creating a proximal gastric pouch with a 300, 600 and 900 cm alimentary limb. Sham operation was performed by bowel transections and reanastomosis in the ileum and proximal jejunum together with gastrotomy and closure. Animals were evaluated weekly for weight increase and monthly for food intake. Eighteen weeks after surgery, fecal in vivo apparent digestibility of protein, fat, fiber, calcium and phosphorous were determined. We performed ANOVA and Tukey tests to detect differences in weight, feed intake and digestibility. We observed significant differences in liveweight after 10 weeks among T300, T600 and T900 as compared to TS. No differences were found among T300, T600 and T900. We also observed significant differences in feed intake among T300, T600 and T900 versus TS. No differences among treatments for digestibility of fat; fiber; protein and energy were found. Calcium and phosphorous apparent digestibility differed among treatments. RYGBP reduced weight increase in the porcine model and calcium and phosphorous digestibility was reduced with longer limbs.

Empirical Analysis and Random Respectful Recombination of Crossover and Mutation in Genetic Algorithms

Genetic algorithms (GAs) are multi-dimensional, blind & heuristic search methods which involves complex interactions among parameters (such as population size, number of generations, various type of GA operators, operator probabilities, representation of decision variables etc.). Our belief is that GA is robust with respect to design changes. The question is whether the results obtained by GA depend upon the values given to these parameters is a matter of research interest. This paper studies the problem of how changes in the four GA parameters (population size, number of generations, crossover & mutation probabilities) have an effect on GA’s performance from a practical stand point. To examine the robustness of GA to control parameters, we have tested two groups of parameters & the interaction inside the group (a) Crossover & mutation alone (b) Crossover combined with mutation . Based on calculations and simulation results it is seen that for simple problems mutation plays an momentous role. For complex problems crossover is the key search operator. Based on our study complementary crossover & mutation probabilities is a reliable approach.