Occupational Health and Safety Prevention Plan in Water Treatment Plant

The research was carried out at the "El Guarumo" drinking water plant located in Santa Ana, province of Manabí, Ecuador. The objective of the investigation was the proposal of a plan of prevention of occupational risks that allows the management of the labor risks in said plant. The main tools used were: survey, interview, checklist, LEST questionnaire for the diagnosis of the current situation in terms of working conditions, the risk identification matrix and the binary method of risk assessment. The main results obtained were the identification of the risks in their different categories, observing that the critical risk factors are related to the physical overexertion, the uncomfortable postures and the manual lifting of the load. Among the important risks are falling objects, skin contact with toxic substances and mental overwork, closely related to work pressures and job security? It was possible to carry out the proposal of preventive and corrective measures in order to properly manage the risks and contribute to the safety and health of the workers

Flora tienda de flores: entregas diferentes para crear una experiencia de servicio innovadora.

FLORA Flower Shop was, in 2018, a flower shop located in the Riomar zone of Barranquilla, Colombia. During that same year Andrea Cabarcas Castro, its founder, was worried about the future growth of the company. She was thinking of strategies to improve the weaknesses she had detected and was clear that she should maintain FLORA’s differentiating factors. The delivery of the floral arrangements to the final consumer represented an opportunity for improvement since this was the time when detailed control of the FLORA service experience could be lost due to protocol breaches. This could affect the positive positioning of the brand, leading to a bad reaction by consumers in the post-purchase experience, resulting in a negative impact on financial results. It was October 2018 and Andrea had until December of that same year to decide. Her main objective was to maintain the growth of the company, without negative effects on the delivery service.FLORA Tienda de Flores era, en el 2018, una floristería ubicada en la localidad de Riomar en Barranquilla, Colombia. Durante ese mismo año Andrea Cabarcas Castro, su fundadora, estaba preocupada por el crecimiento futuro de la empresa. Ella pensaba en estrategias para mejorar los puntos débiles que había detectado y tenía claro que debía mantener sus factores diferenciadores. La entrega de los arreglos al consumidor final representaba una oportunidad de mejora: este es el momento en el que se podía perder el control detallado de la experiencia de servicio FLORA por incumplimientos en los protocolos. Lo anterior podría afectar el posicionamiento positivo de la marca, podría llevar a una mala reacción de los consumidores en la experiencia post-compra, derivando así en un impacto negativo en los resultados financieros. Era octubre de 2018 y Andrea tenía hasta diciembre de ese mismo año para tomar una decisión. Su principal objetivo era mantener el crecimiento de la empresa, sin efectos negativos en la prestación del servicio

The significance of surgically modifying soft tissue phenotype around fixed dental prostheses: An American Academy of Periodontology best evidence review

BackgroundThis systematic review endeavored to investigate the effect of soft tissue phenotype modification therapy (PhMT- s) at sites with a tooth or an implant supported fixed dental prosthesis.MethodsA comprehensive literature search was conducted by two independent examiners to identify relevant studies reporting differences in clinical, esthetic, or radiographic outcomes of interest between sites underwent PhMT- s and sites that remained untreated. Risk of bias assessment was calculated for all included studies. Meta- analyses involving endpoints of interest were performed when feasible.ResultsNo controlled studies pertaining to tooth sites were identified. A total of six articles reporting on the outcomes of buccal soft tissue phenotype modification around implants were selected, of which, five were included in the meta- analyses. Quantitative analyses showed a weighted mean difference (WMD) of 0.98 mm (95% CI = 0.25 to 1.72 mm, P = 0.009) for change of tissue thickness; a WMD of - 4.87% (95% CI = - 34.27 to 24.53%, P = 0.75) for bleeding on probing (BOP); a WMD of 0.36 mm (95% CI = 0.12 to 0.59 mm, P = 0.003) for mucosal recession (MR); a WMD of 0.13 mm (95% CI = - 0.11 to 0.36 mm, P = 0.30 for probing depth (PD); a WMD of 1.08 (95% CI = - 0.39 to 2.55, P = 0.15) for pink esthetic score (PES), and a WMD of 0.40 mm (95% CI = - 0.34 to 1.14 mm, P = 0.28) for marginal bone loss (MBL).ConclusionsSurgical modification of peri- implant soft tissue phenotype via PhMT- s may decrease the amount of MR. Future clinical trials are needed to warrant the clinical benefits of modifying soft tissue phenotype around tooth- supported restorations.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/154660/1/jper10458-sup-0006-figureS1F.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/154660/2/jper10458_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/154660/3/jper10458-sup-0001-figureS1A.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/154660/4/jper10458-sup-0005-figureS1E.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/154660/5/jper10458-sup-0004-figureS1D.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/154660/6/jper10458-sup-0003-figureS1C.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/154660/7/jper10458-sup-0002-figureS1B.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/154660/8/jper10458.pd

Improving the Performance in Occupational Health and Safety Management in the Electric Sector: An Integrated Methodology Using Fuzzy Multicriteria Approach

The electric sector is fundamental for the economic and social development of society, impacting on essential aspects such as health, education, employment generation, industrial production, and the provision of various services. In addition to the above, the growing trend in energy consumption worldwide could increase, according to expert estimates, up to 40% by 2030, which in turn increases the efforts of the public and private sector to meet increasing demands and increase access to energy services under requirements of reliability and quality. However, the electricity sector presents challenges and complexities, one of which is the reduction of health and safety risks for workers, service users, and other stakeholders. In many countries, this sector is classified as high risk in occupational safety and health, due to its complexity and the impact of accidents and occupational diseases on the health of workers, in infrastructure, in operating costs and competitiveness of the energy sector. Worldwide, there are rigorous regulations for the electricity sector, from local and national government regulations to international standards to guarantee health and safety conditions. However, it is necessary to develop objective and comprehensive methodologies for evaluating occupational safety and health performance that provides solutions for the electricity sector, not only to comply with standards and regulations also as a continuous improvement tool that supports the decision-making processes given the complexity of the industry and the multiple criteria that are taken into account when evaluating and establishing improvement strategies. In scientific literature, different studies focus on the analysis of accident statistics, the factors that affect accidents and occupational diseases, and the risk assessment of the sector. Despite these considerations, studies that focus directly on the development of hybrid methodologies for the evaluation and improvement of performance in occupational safety and health in the electrical sector, under multiple criteria and uncertainty are mostly limited. Therefore, this document presents an integrated methodology for improving the performance in occupational health and safety in the electric sector through the application of two techniques of Multi-criteria Decision Methods (MCDM) uses in environments under uncertainly. First, the fuzzy Analytic Hierarchy Process (FAHP) is applied to estimate the initial relative weights of criteria and sub-criteria. The fuzzy set theory is incorporated to represent the uncertainty of decision-makers’ preferences. Then, the Decision-making Trial and Evaluation Laboratory (DEMATEL) used for evaluating the interrelations and feedback among criteria and sub-criteria. FAHP and DEMATEL are later combined for calculating the final criteria and sub-criteria weights under vagueness and interdependence. Subsequently, we applied the proposed methodology in a company of the energy sector for diagnosis of performance in OHS to establish improvement proposals, the work path, and implementation costs. Finally, we evaluate the impact of the strategies applied in the improvement of the performance of the company

American Academy of Periodontology best evidence consensus statement on modifying periodontal phenotype in preparation for orthodontic and restorative treatment

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/154649/1/jper10498.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/154649/2/jper10498_am.pd

Etiology of acute respiratory infection in children under 5 years in the provinces Comunera and García Rovira of Santander

Introducción: La infección respiratoria aguda es una causa importante de morbimortalidad en menores de cinco años en los municipios de las provincias de Santander. La etiología viral en esos municipios no es bien conocida. Objetivo: El objetivo del estudio fue determinar la etiología viral de la infección respiratoria aguda en menores de cinco años en las provincias Comunera y García Rovira del departamento de Santander entre diciembre de 2012 y diciembre de 2013. Materiales y métodos: Estudio descriptivo en población usuaria de servicios de urgencias. Se obtuvieron muestras por hisopado nasofaríngeo y se realizó amplificación por reacción en cadena de polimerasa con el test Seeplex® RV15 OneStep ACE Detection, multiplex para 15 virus. Resultados: Participaron 64 niños, 57,8% niños de sexo masculino. El 26,6%, de los niños eran menores de un año. La positividad para virus fue del 37,5% de las muestras. El 75% de las muestras positivas fueron de la provincia Comunera y 25% de la provincia de García Rovira. Hubo co-infección por dos virus en 8,3% de las muestras positivas. Los virus más identificados fueron Rhinovirus (29%), Parainfluenza 4 (20,8%) e Influenza (12,5%). También se identificó Coronavirus, Adenovirus, Virus Sincitial Respiratorio, Metapneumovirus y otros virus Parainfluenza. Conclusiones: En las dos provincias de Santander evaluadas circula una amplia cantidad de virus respiratorios en menores de cinco años. El Rhinovirus fue identificado como el más frecuente. Se encontró presencia de Metapneumovirus y Coronavirus humano.Introduction: Acute respiratory infection is a major cause of morbidity and mortality in children under 5 years in Santander (Colombia). Viral etiology in municipalities from this department is not well known. Objective: To determine the viral etiology of acute respiratory infection in children under five years in the provinces Comunera and García Rovira (Santander) from December 2012 to December 2013. Methodology: Descriptive study in pediatric population who attended the emergency services studied. Nasopharyngeal swab samples were obtained and a polymerase chain reaction was performed with Seeplex® OneStep RV15 ACE Detection, which is a multiplex test for 15 virus. Results: 64 children were enrolled, 57,8% being boys. 26.6% of participants were under one year. Virus positivity was present in 37.5% of the samples and 75% of the positive samples were from the province Comunera. Besides, 8.3% from positive samples were co-infected with two viruses. The most common virus were Rhinovirus (29%), Parainfluenza 4 (20.8%) and influenza (12.5%). Coronavirus, Adenovirus, respiratory syncytial virus, Metapneumovirus and other Parainfluenza virus were also identified. Conclusions: There is a wide circulation of respiratory virus in children under five in these two provinces of Santander (Colombia). Rhinovirus was the most frequent. Human Metapneumovirus and Coronavirus were also found

Charge separation relative to the reaction plane in Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm NN}}= 2.76 TeV

Measurements of charge dependent azimuthal correlations with the ALICE detector at the LHC are reported for Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV. Two- and three-particle charge-dependent azimuthal correlations in the pseudo-rapidity range $|\eta| < 0.8$ are presented as a function of the collision centrality, particle separation in pseudo-rapidity, and transverse momentum. A clear signal compatible with a charge-dependent separation relative to the reaction plane is observed, which shows little or no collision energy dependence when compared to measurements at RHIC energies. This provides a new insight for understanding the nature of the charge dependent azimuthal correlations observed at RHIC and LHC energies.Comment: 12 pages, 3 captioned figures, authors from page 2 to 6, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/286

Multiplicity dependence of jet-like two-particle correlations in p-Pb collisions at sNN\sqrt{s_{NN}} = 5.02 TeV

Two-particle angular correlations between unidentified charged trigger and associated particles are measured by the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV. The transverse-momentum range 0.7 $< p_{\rm{T}, assoc} < p_{\rm{T}, trig} <$ 5.0 GeV/$c$ is examined, to include correlations induced by jets originating from low momen\-tum-transfer scatterings (minijets). The correlations expressed as associated yield per trigger particle are obtained in the pseudorapidity range $|\eta|<0.9$. The near-side long-range pseudorapidity correlations observed in high-multiplicity p-Pb collisions are subtracted from both near-side short-range and away-side correlations in order to remove the non-jet-like components. The yields in the jet-like peaks are found to be invariant with event multiplicity with the exception of events with low multiplicity. This invariance is consistent with the particles being produced via the incoherent fragmentation of multiple parton--parton scatterings, while the yield related to the previously observed ridge structures is not jet-related. The number of uncorrelated sources of particle production is found to increase linearly with multiplicity, suggesting no saturation of the number of multi-parton interactions even in the highest multiplicity p-Pb collisions. Further, the number scales in the intermediate multiplicity region with the number of binary nucleon-nucleon collisions estimated with a Glauber Monte-Carlo simulation.Comment: 23 pages, 6 captioned figures, 1 table, authors from page 17, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/161

Multi-particle azimuthal correlations in p-Pb and Pb-Pb collisions at the CERN Large Hadron Collider

Measurements of multi-particle azimuthal correlations (cumulants) for charged particles in p-Pb and Pb-Pb collisions are presented. They help address the question of whether there is evidence for global, flow-like, azimuthal correlations in the p-Pb system. Comparisons are made to measurements from the larger Pb-Pb system, where such evidence is established. In particular, the second harmonic two-particle cumulants are found to decrease with multiplicity, characteristic of a dominance of few-particle correlations in p-Pb collisions. However, when a $|\Delta \eta|$ gap is placed to suppress such correlations, the two-particle cumulants begin to rise at high-multiplicity, indicating the presence of global azimuthal correlations. The Pb-Pb values are higher than the p-Pb values at similar multiplicities. In both systems, the second harmonic four-particle cumulants exhibit a transition from positive to negative values when the multiplicity increases. The negative values allow for a measurement of $v_{2}\{4\}$ to be made, which is found to be higher in Pb-Pb collisions at similar multiplicities. The second harmonic six-particle cumulants are also found to be higher in Pb-Pb collisions. In Pb-Pb collisions, we generally find $v_{2}\{4\} \simeq v_{2}\{6\}\neq 0$ which is indicative of a Bessel-Gaussian function for the $v_{2}$ distribution. For very high-multiplicity Pb-Pb collisions, we observe that the four- and six-particle cumulants become consistent with 0. Finally, third harmonic two-particle cumulants in p-Pb and Pb-Pb are measured. These are found to be similar for overlapping multiplicities, when a $|\Delta\eta| > 1.4$ gap is placed.Comment: 25 pages, 11 captioned figures, 3 tables, authors from page 20, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/87

Transverse sphericity of primary charged particles in minimum bias proton-proton collisions at s=0.9\sqrt{s}=0.9, 2.76 and 7 TeV

Measurements of the sphericity of primary charged particles in minimum bias proton--proton collisions at $\sqrt{s}=0.9$, 2.76 and 7 TeV with the ALICE detector at the LHC are presented. The observable is linearized to be collinear safe and is measured in the plane perpendicular to the beam direction using primary charged tracks with $p_{\rm T}\geq0.5$ GeV/c in $|\eta|\leq0.8$. The mean sphericity as a function of the charged particle multiplicity at mid-rapidity ($N_{\rm ch}$) is reported for events with different $p_{\rm T}$ scales ("soft" and "hard") defined by the transverse momentum of the leading particle. In addition, the mean charged particle transverse momentum versus multiplicity is presented for the different event classes, and the sphericity distributions in bins of multiplicity are presented. The data are compared with calculations of standard Monte Carlo event generators. The transverse sphericity is found to grow with multiplicity at all collision energies, with a steeper rise at low $N_{\rm ch}$, whereas the event generators show the opposite tendency. The combined study of the sphericity and the mean $p_{\rm T}$ with multiplicity indicates that most of the tested event generators produce events with higher multiplicity by generating more back-to-back jets resulting in decreased sphericity (and isotropy). The PYTHIA6 generator with tune PERUGIA-2011 exhibits a noticeable improvement in describing the data, compared to the other tested generators.Comment: 21 pages, 9 captioned figures, 3 tables, authors from page 16, published version, figures from http://aliceinfo.cern.ch/ArtSubmission/node/308