scholarly journals MULTIVARIATE ANALYSIS APPLIED AT THE SCHOOL OF THE UBERLAND-AMERICAN FIELD OF CONSUMER UNDERGROUND WATER QUALITY

2019 ◽  
Vol 16 (32) ◽  
pp. 833-847
Author(s):  
M. S. MEDEIROS ◽  
A. C. GOULART ◽  
I. S. PACHECO ◽  
F. A. AMARAL ◽  
S. C. CANOBRE

The decrease of the water available for human consumption is directly related to the unregulated and unconscious action from the man himself. In rural areas, this depreciation is related to inappropriate conditions of artesian wells that capture the water (old wells and poorly sealed) and which are usually close to sources of pollution, such as septic tanks and animal grazing. In this context, the objective of the present work was to evaluate the physico-chemical and microbiological quality of underground water samples made available for consumption in three schools in the field next to the municipality of Uberlândia-MG. Methodologically, the data were statistically processed by means of descriptive and multivariate analysis (Pearson correlation coefficient). All schools are supplied by an artesian well, being carried out simplified treatment (chlorination mechanism of chemical treatment). In only one of the schools was identified the presence of a septic tank sewage collection system. Of samples evaluated, all were at odds with the standards laid down in annex XX of the Consolidation Ordinance No. 5 of the Ministry of health (old law 2,914/2011) in at least one of the parameters evaluated. Therefore, the results reflect the possibility of biological contamination of the water by grazing areas located in the region close to the wells, as well as the need for emerging measures, such as regular cleaning and maintenance of storage systems and distribution of the water consumed in the institutions.

Author(s):  
Débora Samara Cruz Rocha Farias ◽  
Soahd Arruda Rached Farias ◽  
José Dantas Neto

<p>Na Região do Semiárido nordestino a diminuição da disponibilidade dos recursos hídricos superficiais tem levado a população da zona rural a buscar, nos recursos hídricos subterrâneos, a solução de seus problemas de abastecimento, o que tem acarretado um crescimento no número de perfurações de poços tubulares profundos. O trabalho objetivou avaliar a qualidade de águas utilizadas para consumo humano em áreas rurais da região de Boa Vista, Paraíba. As amostras de água foram coletadas em poços tubulares, em dois períodos: 4º trimestre de 2014 e 2º trimestre de 2015. As variáveis avaliadas foram: pH, CE, Ca, Mg, Na, K, HCO<sub>3 </sub><sup>-</sup>, Cl, alcalinidade e dureza total e SDT. Das águas analisadas 94,55% são consideradas salgadas nas duas amostragens. Em sua maioria os teores de dureza, alcalinidade, cloreto, magnésio, sódio e potássio estão fora do limite estabelecido pela Portaria vigente no país. Com relação ao pH, as amostras se encontram dentro do padrão normal.</p><p align="center"><strong><em>Water quality for human consumption in rural communities in the municipality of Boa Vista, state Paraíba</em></strong></p><p><strong>Abstract</strong><strong>: </strong>In the semi-arid northeastern region of decreasing availability of surface water resources has led to population from the countryside to look for underground water resources to solve their supply problems, which has led to an increase in the number of deep wells drilling. The study aimed to assess the quality of water used for human consumption in rural areas of the region Boa Vista, Paraíba. Water samples were collected from wells in two periods: 4th quarter 2014 and 2nd quarter of 2015. The variables evaluated were: pH, EC, Ca, Mg, Na, K, HCO<sub>3</sub><sup>-</sup>, Cl, alkalinity and total hardness and TDS. 94.55% of the analyzed waters are considered cured in the two sampling. Mostly hardness levels, alkalinity, chloride, magnesium, sodium, potassium are beyond the limit set by current Ordinance in the country. Regarding the pH samples are within the normal pattern.<strong></strong></p>


2019 ◽  
Vol 17 (4) ◽  
pp. 597-608
Author(s):  
Caroline Rodrigues da Silva ◽  
Matheus Silva Sanches ◽  
Kawana Hiromori Macedo ◽  
Angélica Marim Lopes Dambrozio ◽  
Sergio Paulo Dejato da Rocha ◽  
...  

Abstract Water-borne diseases like diarrheagenic Escherichia coli (DEC)-induced gastroenteritis are major public health problems in developing countries. In this study, the microbiological quality of water from mines and shallow wells was analyzed for human consumption. Genotypic and phenotypic characterization of DEC strains was performed. A total of 210 water samples was analyzed, of which 153 (72.9%) contained total coliforms and 96 (45.7%) E. coli. Of the E. coli isolates, 27 (28.1%) contained DEC genes. The DEC isolates included 48.1% Shiga toxin-producing E. coli (STEC), 29.6% enteroaggregative E. coli (EAEC), 14.9% enteropathogenic E. coli (EPEC), 3.7% enterotoxigenic E. coli (ETEC), and 3.7% enteroinvasive E. coli (EIEC). All the STECs had cytotoxic effects on Vero cells and 14.8% of the DEC isolates were resistant to at least one of the antibiotics tested. All DEC formed biofilms and 92.6% adhered to HEp-2 cells with a prevalence of aggregative adhesion (74%). We identified 25 different serotypes. One EPEC isolate was serotype O44037:H7, reported for the first time in Brazil. Phylogenetically, 63% of the strains belonged to group B1. The analyzed waters were potential reservoirs for DEC and could act as a source for infection of humans. Preventive measures are needed to avoid such contamination.


Author(s):  
José Silvio Dos Santos ◽  
Velber Xavier Nascimento ◽  
João Gomes Da Costa ◽  
Pedro Henrique De Omena Toledo ◽  
Thiago José Matos Rocha ◽  
...  

<span class="fontstyle0">Groundwater consumption is increasing in Brazil. However, the disordered urban expansion of Brazilian cities has provoked significant impacts on the water sources that supply these localities. The analysis of the water quality used for human consumption from public artesian wells is very important. Chemical analyses of the underground water were performed from march to July 2018. Nitrate, ammonia and pH were analyzed and compared with data obtained from the last 15 years. It was possible to observe a high acidity in all studied locations. 33% of the water samples presented high levels of nitrate and ammonia. The temporal analysis showed a deterioration of water quality in the studied. These results indicated that the water quality is decreasing, and this degradation process has been going for a long time.</span><br /><br />


Author(s):  
Gungurumale Laxminarasimhacharya Janardhana ◽  
Nanda Appaji

Introduction: India ranks 4th in the elderly population. Ageing play an important role in the well being and associated factors. The present study was conducted to understand the feeling of the elderly residing in urban and rural areas of Shivamogga, Karnataka southern India. Methods: The study was conducted on 200 elderly by a questionnaire on their socio- demographic profile, health, residing place, lifestyle, life satisfaction, dissatisfaction, culture, tradition, the role of technology and government. Data were analyzed with Pearson correlation coefficient. Results: For most of the analysed factors rural elders had shown strong positive correlation compared to urban elders. Health condition is positively significant in rural elders (rs = 0.76, p > 0.05), when compared to urban elders (rs = 0.67, p > 0.05), the place of residing is having strong correlation with rural (rs = 0.97, p > 0.05), because they reside in their own home then urban (rs = 0.56, p > 0.05), as they reside in rented house hence their attachment to rented house is less than own home. Conclusion: The elders of rural-urban areas of shivamogga had shown positive significance with the selected factors, but the strong inclination is towards rural elders. The rural-urban divide and emotional psychological behaviours need further investigation


2020 ◽  
pp. 71-80
Author(s):  
Olesya Tomchuk

The article highlights the problems and prospects of human development, which is the basis for the long-term strategies of social and economic growth of different countries and regions at the present stage. Submitting strategies of this type provides an opportunity to focus on individual empowerment and to build a favorable environment for effective management decisions in the field of forming, maintaining, and restoring human potential. The analysis of the Vinnytsia region human potential dynamics in the regional system of social and economic development factors was carried out. Application of generalized assessment of the regional human development index components allowed the identification of the main trends that characterize the formation of human potential of the territory, including the reproduction of the population, social environment, comfort and quality of life, well-being, decent work, and education. The article emphasizes that despite some positive changes in the social and economic situation of the region and in assessing the parameters of its human development level relative to other regions of Ukraine, Vinnytsia region is now losing its human potential due to negative demographic situation and migration to other regions and countries. The main reason for such dynamics is proven to be related to the outdated structure of the region's economy, the predominance of the agricultural sector, the lack of progressive transformations in the development of high-tech fields of the economy. An important factor is the low level of urbanization of the region, which leads to the spread of less attractive working conditions and less comfortable living conditions. The key factors that cause the growth of urbanization in the region have been identified, including the significant positive impact of the transport and social infrastructure expansion, the lack of which in rural areas leads to a decrease in the level and comfort of life. Without progressive structural changes in the economy and the resettlement system, the loss of human potential will continue.


2020 ◽  
Vol 25 (1) ◽  
pp. 169-174
Author(s):  
Renuka Mahadevan ◽  
Vanessa Sha Fan

An examination of the two-way relationship between tourism expenditure and life satisfaction for seniors is undertaken in this article. This examination uses panel data on China's seniors and tracks the same seniors over 3 years. Results show that there is bidirectional causality between tourism expenditure and life satisfaction, casting doubt on previous studies that do not consider this two-way relationship. This empirical relationship highlights the importance of a two-pronged policy strategy— a government policy committed to social tourism programs for seniors who may not be able to afford travel and those who reside in rural areas. Another government strategy is to address aged concerns related to mobility and health to improve well-being and the provision of appropriate facilities for leisure travel. Senior tourism demand was found to be income inelastic and this result means that senior tourism can buffer Chinese economic growth in times of economic crisis and uncertainty, making the twin policy strategy a worthwhile consideration.


1993 ◽  
Vol 27 (3-4) ◽  
pp. 31-34 ◽  
Author(s):  
E. Martinez-Manzanares ◽  
M. A. Moriñigo ◽  
D. Castro ◽  
M. C. Balebona ◽  
J. J. Borrego

The objective of this study is to compare different microbiological criteria based on the control of shellfish-growing waters and shellfish flesh, to assess the microbiological quality of the shellfish harvested in a marine zone affected by discharges of a moderately polluted river. Two species of shellfish grown in Mediterranean countries, cockles (Cardium edule) and striped venus (Chamelea gallina) were chosen to carry out this study. A total of 55 samples of diellfish and sea water were collected over the four seasons of the year. According to the results obtained, the US, EEC and Spanish criteria, based on the level of faecal coliforms in shellfish flesh, guaranteed appropriately their safety for human consumption, but among the criteria based on the level of Escherichia coli, only the Australian criterion has been shown to be totally safe, this microorganism being the best indicator of the presence of Vibrio parahaemolyticus and Salmonella. For the criteria based on the analysis of indicators in seawater, the indicators which relate to the age of faecal pollution, such as spores of clostridium sulfite reducer and faecal streptococci are the best indexes of the presence of pathogens in shellfish. Furthermore, criteria that establish the percentage of water samples that fulfill the microbiological level specified, or log-normal distributions of indicators such as total coliforms, faecal coliforms and E. coli, are better than mean counts.


2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Angel Kit Yi Wong ◽  
Sylvia Yee Fan Tang ◽  
Dora Dong Yu Li ◽  
May May Hung Cheng

PurposeThe purpose of this paper is threefold. Firstly, a new concept, teacher buoyancy, is introduced. Based on the significance to study how teachers bounce back from minor and frequent setbacks (vs. major adversities emphasized in resilience) in their daily work and the research on buoyancy by Martin and Marsh, a dual-component framework to conceptualize this new concept is introduced. Secondly, the development of a new instrument, the Teacher Buoyancy Scale (TBS), to measure it is presented. Thirdly, results of a study using the TBS are reported, which provide insights into how teacher buoyancy can be fostered.Design/methodology/approachThe study employed a quantitative design. A total of 258 teachers taking a part-time initial teacher education (ITE) program completed the TBS. Their responses were analyzed by exploratory factor analysis (EFA). In addition to descriptive statistics and reliability coefficients, Pearson correlation coefficients were calculated to examine the relationship among the factors.FindingsThe data analysis indicated five factors, namely, Coping with difficulties, Bouncing back cognitively and emotionally, Working hard and appraising difficulties positively, Caring for one's well-being and Striving for professional growth. These factors can be readily interpreted by the dual-component framework. Correlations among the factors further revealed that enabling factors can be subdivided into more proximal personal strengths relating to direct coping, and more distal personal assets pertaining to personal well-being. It is the latter that correlates most highly with perceived teacher buoyancy.Originality/valueThe most original contribution of this paper is the proposal of the new concept of teacher buoyancy which is teachers' capacity to deal with the everyday challenges that most teachers face in their teaching. The delineation between buoyancy and resilience sharpens the focus of the problem domain that is most relevant to teachers. The development of the TBS provides a useful and reliable instrument to examine teacher buoyancy in future studies.


Antibiotics ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 850
Author(s):  
Shobha Giri ◽  
Vaishnavi Kudva ◽  
Kalidas Shetty ◽  
Veena Shetty

As the global urban populations increase with rapid migration from rural areas, ready-to-eat (RTE) street foods are posing food safety challenges where street foods are prepared with less structured food safety guidelines in small and roadside outlets. The increased presence of extended-spectrum-β-lactamase (ESBL) producing bacteria in street foods is a significant risk for human health because of its epidemiological significance. Escherichia coli and Klebsiella pneumoniae have become important and dangerous foodborne pathogens globally for their relevance to antibiotic resistance. The present study was undertaken to evaluate the potential burden of antibiotic-resistant E. coli and K. pneumoniae contaminating RTE street foods and to assess the microbiological quality of foods in a typical emerging and growing urban suburb of India where RTE street foods are rapidly establishing with public health implications. A total of 100 RTE food samples were collected of which, 22.88% were E. coli and 27.12% K. pneumoniae. The prevalence of ESBL-producing E. coli and K. pneumoniae was 25.42%, isolated mostly from chutneys, salads, paani puri, and chicken. Antimicrobial resistance was observed towards cefepime (72.9%), imipenem (55.9%), cefotaxime (52.5%), and meropenem (16.9%) with 86.44% of the isolates with MAR index above 0.22. Among β-lactamase encoding genes, blaTEM (40.68%) was the most prevalent followed by blaCTX (32.20%) and blaSHV (10.17%). blaNDM gene was detected in 20.34% of the isolates. This study indicated that contaminated RTE street foods present health risks to consumers and there is a high potential of transferring multi-drug-resistant bacteria from foods to humans and from person to person as pathogens or as commensal residents of the human gut leading to challenges for subsequent therapeutic treatments.


Agriculture ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 462
Author(s):  
Hongyu Wang ◽  
Xiaolei Wang ◽  
Apurbo Sarkar ◽  
Lu Qian

Market-based initiatives like agriculture value chain (AVC) are becoming progressively pervasive to support smallholder rural farmers and assist them in entering larger market interventions and providing a pathway of enhancing their socioeconomic well-being. Moreover, it may also foster staggering effects towards the post-era poverty alleviation in rural areas and possessed a significant theoretical and practical influence for modern agricultural development. The prime objective of the study is to explore the effects of smallholder farmers’ participation in the agricultural value chain for availing rural development and poverty alleviation. Specifically, we have crafted the assessment employing pre-production (improved fertilizers usage), in-production (modern preservation technology), and post-production (supply chain) participation and interventions of smallholder farmers. The empirical data has been collected from a micro survey dataset of 623 kiwifruit farmers from July to September in Shaanxi, China. We have employed propensity score matching (PSM), probit, and OLS models to explore the multidimensional poverty reduction impact and heterogeneity of farmers’ participation in the agricultural value chain. The results show that the total number of poor farmers who have experienced one-dimensional and two-dimensional poverty is relatively high (66.3%). We also find that farmers’ participation in agricultural value chain activities has a significant poverty reduction effect. The multidimensional poverty level of farmers using improved fertilizer, organizational acquisition, and using storage technology (compared with non-participating farmers) decreased by 30.1%, 46.5%, and 25.0%, respectively. The multidimensional poverty reduction degree of male farmers using improved fertilizer and participating in the organizational acquisition is greater than that of women. The multidimensional poverty reduction degree of female farmers using storage and fresh-keeping technology has a greater impact than the males using storage and improved storage technology. Government should widely promote the value chain in the form of pre-harvest, production, and post-harvest technology. The public–private partnership should also be strengthened for availing innovative technologies and infrastructure development.


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