bluuebunny/crossref_metadata_2025 huggingface dataset:
PALEOAMBIENTE DEPOSICIONAL E ORIGEM DA MATÉRIA ORGÂNICA DOS FOLHELHOS BETUMINOSOS DA FORMAÇÃO IPUBI, PORÇÕES LESTE E SUDESTE DA BACIA DO ARARIPE, NE DO BRASIL: EVIDÊNCIA DE N-ALCANOS E ISOPRENOIDES
Authors: Moura William Alexandre Lima de , Araujo João Carlos Morais de , Lúcio Thales , Souza Neto João Adauto de
Published: November 2020

Condições paleoambientais dos folhelhos betuminosos cretáceos da Formação Ipubi (Bacia do Araripe-NE do Brasil) são continuamente debatidos. O principal ponto de controvérsia é se essas rochas foram depositadas em condições lacustres ou marinhas restritas. O presente estudo se desenvolveu com amostras representativas desses folhelhos betuminosos da unidade sedimentar supracitada, a partir da análise de biomarcadores saturados (n-alcanos e isoprenoides) para se reconstruir o paleoambiente deposicional e a origem da matéria orgânica. O predomínio de n-alcanos entre n-C13 e n-C19 são indicativos de uma contribuição algálica. Entretanto, picos das concentrações dos n-alcanos n-C27, n-C28 e n-C29 sugerem uma influência de plantas continentais. As relações Pr/Fi e Pr/Fi vs. (Pr + n-C17)/(Fi + n-C18) indicam condições redutoras (baixa oxigenação) e hipersalinas durante a deposição destes folhelhos. O diagrama Pr/n-C17 vs. Fi/n-C18, além de sugerir também condições redutoras durante a deposição destes folhelhos, classifica a contribuição algálica como de origem marinha-transicional. Sendo assim, baseado nos compostos orgânicos moleculares, este estudo sugere que os folhelhos estudados foram depositados em condições anóxicas e hipersalinas em um paleoambiente marinho restrito à transicional.
GEOLOGIA DA ÁREA NORDESTE DA FOLHA POÇO DA CRUZ, BACIA DE JATOBÁ, NORDESTE DO BRASIL
Authors: Souza Pamela Caroline Silva de , Fambrini Gelson Luís , Queiroz Renan Gustavo Barbosa , Oliveira Leonardo Marinho de
Published: November 2020

A Bacia de Jatobá está localizada na porção centro-sul do estado de Pernambuco e no norte da Bahia e Alagoas, possui uma área com cerca de 5000 km², direção preferencial NE-SW e registro sedimentar com aproximadamente 3 km. Esta bacia do tipo rifte foi desenvolvida a partir dos eventos distensivos da ruptura do supercontinente Gondwana e marca o limite norte do sistema rifte abortado Recôncavo-Tucano-Jatobá. A sucessão estratigráfica da área de estudo, localizada no distrito Campos, Ibimirim (PE), compõe as sequências Sinéclise, Início de Rifte e Clímax de Rifte da bacia. A partir da utilização de seções colunares e identificação de fácies sedimentares foram reconhecidas seis unidades estratigráficas, além de uma cobertura quaternária. As duas unidades flúvio-marinhas inferiores estão relacionadas aos registros sedimentares siluro-devonianos da sequência Sinéclise, enquanto os sedimentitos lacustres e fluvio-eólicos das unidades superiores marcam a sequência de Início de Rifte e Clímax de Rifte. A Formação Aliança, discutida de forma particular neste trabalho, representa os primeiros registros sedimentares da sequência de Início de Rifte de idade Neojurássica (andar Dom João). Essa unidade foi depositada sob um sistema lacustre, com níveis carbonáticos decimétricos altamente fossilíferos dispostos em espessos pacotes pelíticos, sugerindo deposição em momentos de variações energéticas de um lago raso. O detalhamento estratigráfico desses depósitos, associado a estudos petrográficos e paleontológicos, traz uma nova compreensão acerca do sistema deposicional que atuou nesse ambiente e os primeiros processos que deram início à abertura do rifte durante o Jurássico Superior.
Calidad periodística y cobertura de la COVID -19 en medios nativos digitales ecuatorianos
Authors: Villacrés Rosero Camila Salomé
Published: November 2020

La llegada del coronavirus al Ecuador generó desafíos en diversos sectores, así como en los medios de comunicación. Es por eso que este trabajo presenta un análisis de contenido cuantitativo que mide la presencia o ausencia de criterios de calidad periodística en la cobertura de COVID-19 en el país. Esta investigación analiza

las noticias publicadas por cuatro medios nativos digitales durante el periodo de marzo a mayo del 2020, primer trimestre de la emergencia sanitaria. Se identifica ron diferentes variables abordadas mediante un estudio inspirado en el método de Valor Agregado Periodístico (VAP). Este instrumento permite comparar el trabajo en

catástrofe con los patrones tradicionales del periodismo y, a partir de ello, analizar las deficiencias y dificultades en este tipo de coberturas.
A Comparative Evaluation of Force Decay in Six Different Orthodontic Elastomeric Chains - An In-vitro Study
Authors: Bhardwaj Amit , Mishra Kratika
Published: November 2020

Aims: Comparison of degradation of force of 6 commercially available orthodontic elastomeric chains (e-chains) for the period of 8 weeks. Settings and Design: In-vitro Study. Method and Materials: Elastomeric chains of 6 companies were stretched to a particular distance that is pre determined and comparison was made at two force magnitudes (200 gm and 350 gm) at different time points. Digital force gauge is used for measuring remaining force magnitudes at different time points. Statistical Analysis used: The comparison of difference in force decay between subgroups and effect of time on force decay was calculated using Analysis of Variance (ANOVA). Comparison of the mean force differences using paired t-test is performed from initial to final measurements. For comparison of difference of force decay of elastomeric chain products of same company, independent samples t-tests were used. Results: Maximum remained force (129.7 gm) was observed in American Orthodontics I (Ao I) subgroup followed by Ormco (Or) I (120.1 gm), Orthoorganizers (Oo) I (105.5 gm), 3m I (91.9 gm, G and H (Gh) I (80.4 gm) and Orthoclassic (Oc) I subgroup showed minimum remained force (74.9 gm) at end of 8 weeks in light force. Maximum remained force (209.0 gm) was observed in Ao II subgroup followed by Or II (191.3 gm), 3M II (188.8 gm), Oc II (129.9 gm), Oo II (121.5 gm) and Gh II subgroup showed minimum remained force (108.5 gm) at end of 8 weeks in heavy force. Conclusions: American Orthodontics showed minimum rate and Ortho Classic showed maximum rate of force decay over 8 weeks in both light force (200 gm) and heavy force (350 gm).
Can Aligners Help us Solve the Covid-19 Paradox: Time to Utilize the Benefits of Aligners for carrying out Orthodontic Treatment
Authors: Marya Anand
Published: November 2020

The novel Corona virus has caused extensive damage to both life and economy and it has also given us a chance to adapt and make changes to the way we do things1. This includes changes that must be made to the way we practice dentistry as a whole. Orthodontics, a specialty of dentistry that involves long term treatments usually in order to fulfill esthetic objectives planned out for the patients is at a greater risk compared to other specialties because most of them do not require long-term follow-ups. During this crisis it is essential to implement measures that help patient treatments to continue as planned and at the same time it is imperative to employ methods that reduce complications. Aligners are very useful in carrying out most tooth movements with the help of attachments and these should definitely be considered as an aid to Orthodontic practice.
Extraoral Sublingual Epidermoid Cyst: A Case Report
Authors: Limdiwala Piyush G. , Shah Jigna S. , Parikh Shilpa J. , Chaudhari Nayankumar K.
Published: November 2020

Epidermoid Cysts (EC) are rare cysts of the head and neck region, which may confuse with many soft tissue sublingual mass pathologies. A presentation of such cyst is important to decide the surgical approach. The aim of this paper was to present the role of USG and MRI for determine the surgical approach. A female patient presented with chronic asymptomatic swelling over left submandibular neck which was single diffuse, non-tender, soft, compressible, fluctuant with normal overlying skin. Swelling was not movable with deglutination and protrusion of tongue. MRI and USG guided FNAC was conclusive to diagnose the lesion. Histological examination confirmed the diagnosis. Lateral neck swelling should be considered as EC for differential diagnosis. A careful physical examination and fine needle aspiration and diagnostic imaging should be performed which clarifies the surgical approach.
Editorial
Authors: Kharbanda O. P. , Dhingra Kunaal
Published: November 2020

No Abstract.
The effect of hearing aid use on dichotic listening performance of the hearing-impaired elderly
Authors: Moradipour Golnaz , Nazeri Ahmadreza , Jalilvand Hamid , Tabatabaee Seyed Mehdi
Published: November 2020

Background and Aim: One of the chronic hea­lth problems of the elderly is presbycusis, and one of the most important age-related changes in central auditory processing is dichotic listening deficit. The purpose of this study was to investi­gate the effects of using hearing aids on dichotic listening performance of the elderly with hearing loss by dichotic tests.
Methods: In this cross-sectional study, randomi­zed dichotic digit test (RDDT) and dichotic auditory verbal memory test (DAVMT) were performed on 20 seniors with hearing loss (8 male, 12 female) aged 65−80 years. They were divided into two groups of test (with hearing aid, n = 10) and control (without hearing aid, n = 10). They were tested before and two months after the use of hearing aid and the results were analyzed using t-test for two independent variables.
Results: There was a significant difference in the total DAVMT score in control group before and after the intervention (p < 0.001) and not in test group, but in terms of right and left ear DAVMT and RDDT scores, showed no significant diffe­rence in any groups. Moreover, there was no sig­nificant difference in the mean DAVMT score of the right ear and the mean RDDT score between groups, but in terms of the total DAVMT score, a significant difference between two groups was reported (p = 0.003).
Conclusion: It can be said that the DAVMT has the ability to show adverse effects of hearing loss on recognition function and memory of the elde­rly.
 
Keywords: Randomized dichotic digit test; dichotic auditory verbal memory test; hearing aid; presbycusis
Comparison of sensorineural hearing loss characteristics in different hemodialysis vascular accesses
Authors: Kohansall Behieh , Saeedi Nasser , Hossein Beigi Moeinoddin , Moslemi Azam , Valizadeh Akram
Published: November 2020

Background and Aim: Sensorineural hearing loss (SNHL) is one of the complications in hemodialysis patients. Vascular access (VA) represents a lifeline for these patients affecting their life quality and clinical outcomes. Arterio­venous fistula is the gold standard of VAs with minor complications and better hemodialysis adequacy. There is no study investigating hearing differences in hemodialysis VAs. Hence, this study aimed to compare SNHL characteristics amongst hemodialysis VAs.
Methods: This cross-sectional study conducted on 64 patients aged 18−60 years received regular hemodialysis in 2019. Demographic data and comorbid conditions were recorded based on patients’ case records and electronic databases. After a physical examination, otoscopy, tympa­nometry, and conventional audiometry, patients were divided into fistula (n = 26), permanent catheter (n = 36), and temporary catheter (n = 2) groups according to vascular access type.
Results: Prevalence rate of SNHL was 63.89%, 50% and 50% in the permanent catheter, fistula and temporary catheter groups, respectively. Most patients had mild sloping-SNHL in the per­manent catheter and fistula groups as against moderate degree in the other group. There was no significant difference in hearing thresholds, deg­ree and audiogram shape among VA groups. No significant relation was found between age, sex, hemodialysis duration and disease duration with hearing loss in all groups (p > 0.05).
Conclusion: More patients had SNHL in per­manent catheter group. Vascular access types, longer duration of hemodialysis and disease dur­ation do not seem to be associated with SNHL. However, further investigation is needed to cla­rify the relationship.
Keywords: Sensorineural hearing loss; vascular access; chronic renal failure; hemodialysis
Comparison of Retention and Seating of Implant-Supported Hard and Soft Metal Copings
Authors: Ghodsi Safoura , Fayyazi Anahita , Ghiasi Maryam , Rohanian Ahmad , Alikhasi Marzieh
Published: November 2020

Objectives: Implant-supported restorations are generally used for the replacement of the lost teeth. Stability against masticatory forces and proper retention are critical for optimal durability of restorations. The aim of this experimental study was to compare the retention of cobalt-chromium (Co-Cr) copings made by different techniques.
Materials and Methods: Twenty-four solid abutment analogs were mounted and scanned with a desktop scanner. They were divided into two groups (n=12) and received metal copings fabricated by either soft or hard Co-Cr alloy. Soft Cera­mill Sintron Co-Cr patterns were milled and sintered. Hard Co-Cr blocks were milled in a milling machine. The copings were sandblasted, polished, adjusted, and placed on the respective abutments. The frequency of adjustments was recorded for each abutment. The copings were cemented with zinc phosphate cement and underwent tensile test by a universal testing machine. The Mann-Whitney test and t-test were used to compare the two groups (α=0.05).
Results: There was no significant difference in retention of copings between the experimental groups. The mean retentive force was 559.58±115.66 N and 557.13 ±130.48 N for the soft and hard metal groups, respectively (P=0.96). Considering the non-normal distribution of adjustment frequency data, the Mann-Whitney test showed that the frequency of adjustments was significantly higher in the hard metal group than the soft metal group (9.5 versus 0.1667; P<0.001).
Conclusion: Although hard metal copings required more adjustments, retention of soft and hard Co-Cr copings was not significantly different.
Effect of Bleaching with 15% Carbamide Peroxide on Flexural Strength of Three Resin-Based Restorative Materials
Authors: Kimyai Soodabeh , Ghavami Lahij Yasaman , Daneshpooy Mehdi , Jafari Navimipour Elmira , Alizadeh Oskoee Parnian
Published: November 2020

Objectives: Considering the increasing use of vital bleaching procedures and the increased application of newly introduced resin-based materials for tooth restoration, this study was designed to evaluate the effect of 15% carbamide peroxide gel on the flexural strength of three resin-based restorative materials.
Materials and Methods: Three different types of restorative materials namely Beautifil II giomer, Cention N, and Z250 micro-hybrid composite resin were evaluated in this in vitro, experimental study. Twenty-four bar-shaped specimens were prepared from each restorative material, totaling 72 specimens, and were randomly assigned to two subgroups with and without bleaching procedure (n=12). In the bleaching subgroups, 15% carbamide peroxide gel was applied on the specimen surface 8 h a day for 14 days. The flexural strength of the specimens was then measured. Two-way ANOVA was used to compare the flexural strength of the specimens.
Results: There was a significant reduction in the flexural strength of materials following exposure to the bleaching agent (P<0.05). The flexural strength was significantly higher in the groups that did not undergo bleaching. However, the mean flexural strength of the restorative materials was not significantly different (P=0.12).
Conclusion: The flexural strength of Beautifil II giomer, Cention N, and Z250 micro-hybrid composite resin could be compromised subsequent to bleaching with 15% carbamide peroxide gel. The three resin-based restorative materials exhibited similar flexural strength values irrespective of the use or no use of 15% carbamide peroxide gel.
A Variant of the Current Dens Invaginatus Classification
Authors: Gul Meisha , Adnan Samira , Umer Fahad
Published: November 2020

Endodontic treatment of maxillary incisors may be considered straight forward. However, in some instances, they may exhibit aberrant morphology. One of these rare variations in tooth morphology is dens invaginatus. To improve the endodontic prognosis of such teeth, a detailed evaluation of the tooth under treatment is important, which requires comprehensive clinical and radiographic examinations, including periapical radiography and cone-beam computed tomography (CBCT), which is highly recommended whenever atypical root canal morphology is suspected on a periapical radiograph. The current case report discusses the diagnosis of type IV dens invaginatus in a maxillary lateral incisor using CBCT.
Strategic Decision Making in Fire Risk Management in Aftab Gorgan Commercial Complex using Artificial Intelligence Model
Authors: Nouri Mohammad , Maghsoudloukamali Bijan , Jafari Nodoushan Reza
Published: November 2020

Introduction: Today, commercial complexes are among the most important shopping centers in cities that account for one of the most important urban development infrastructures. Evaluation and management of fire is essential to prevent accidents and disasters such as fires. Due to the increased population density and slow access to safe and secure outdoor space during the disaster, human casualties and financial losses have increased. The aim of this study was to make strategic decisions in fire risk management in Aftab Gorgan commercial complex using artificial intelligence model.
Method: : In this study,  all technical documentation, including technical-physical and urban properties as well as notification and extinguishing system of the commercial complex under study were investigated. Later, the important and influential components of the design were identified, paired, weighted, and compared using Delphi questionnaires. In the next stage,  the SWOT matrix was applied and quadratic strategies were designed and modeled after designing a hierarchical tree to model and prioritize the strategies.
Results: According to the outputs of the performed modeling using Matlab and Neuro-Solution 5 software, we found that in weighting and ranking of the eight designed strategies, only one strategy was ranked (and has equal priority) in both models and other scenarios were different. Therefore, integrating strategies for fire risk management was considered essential.
Conclusion: The findings showed that the strategy of adopting the systematic and strategic-operational management approach of fire risk in Gorgan Aftab 3 Complex design were the most ideal possible strategies. This was due to the special attention paid to optimization of physical spaces and fire alarm systems as well as implementation of business classification and continuous excellence system of HSE-MS and crisis management.
Risk and Asset Integrated Management with Risk-Based Inspection Technique in Oil, Gas, and Petrochemical Industries
Authors: Barkhordari Amir , Mahmoudian Yazdan , Yousefi Fateme , Zarei Peyman , Moradi Behnam
Published: November 2020

Introduction: To prevent accidents and minimize the risk of unexpected disasters in the oil, gas, and petrochemical industries, an inspection of equipment in terms of mechanical integrity and safe and consistent service providing are of utmost importance. The purpose of this study is integrated risk and asset management by implementing risk-based inspection techniques in the oil, gas, and petrochemical industries.
Methods: Firstly, this systematic review study identified a list of keywords based on RBI and then exclusively on the internal and external databases of Science Direct, Pub med, Google Squalor, SDI, Google Searcher, and Scopus without a time limit. Afterward, keywords, including risk management, probability of failure, asset integrated management, risk-based inspection, consequences of failure, and corrosion management, were searched.
Result: A review of various studies showed that the risk-based inspection approach provided the necessary platform for upgrading and formulating new inspection, repair, maintenance, equipment risk management systems and asset integration in the oil, gas, and petrochemical industries and played a significant role in reducing the risk levels to its acceptable limits.
Conclusion: By analyzing the results of studies, it was found that using this method will lead to the effective implementation of risk management, reliability, and corrosion management in oil, gas, and petrochemical industries. In fact, the system intended to provide process safety, increase risk perception of damage in line with the respective risk management, and ensure the integrity of the assets in operational units.
Identifying and Prioritizing the Factors Affecting Happiness among Ceiling Cranes Staff of Isfahan Mobarakeh Steel Company
Authors: GHORBANIAN REZA , SHAKERI Iman , SAMAVATIAN Hossin , NURI Abolghasem
Published: November 2020

Introduction: The achievements of happiness at work have been so significant and effective that it has convinced many organizations to mention the applications of happiness at work as a new and efficient approach to create a sustainable competitive advantage for organizations. It is essential to examine the factors that increase happiness. This research aims to identify and prioritize the factors affecting the happiness among the ceiling cranes staff of Isfahan Mobarakeh Steel Company.
Methods: This research is a descriptive-analytical study. The statistical sample of the study consisted of 120 randomly selected employees of Mobarakeh Steel ceiling cranes. To measure variables used, the Oxford Happiness Questionnaire, the NEO Personality, Walton's Quality of Work Life, General Health, and Demographic Questionnaires. Data analysis used the Pearson correlation coefficients, Spearman, One-way analysis of variance (ANOVA), stepwise & moderated regression analysis.
Results: The findings showed a significant positive relationship between employee happiness and extraversion and a significant negative relationship between employee happiness and neuroticism (p<0/05). Also, a significant relationship between the components of the quality of work-life and happiness was found (p<0/01). Components of GHQ showed a negative correlation with employee happiness (p<0/01). There was no significant relationship between demographic variables and happiness. Regression analysis showed that general health, the quality of working life, and some demographic variables had the highest share in predicting the staff’s happiness, respectively.
Conclusion: The results showed that the components of the quality of working life and general health have an essential role in predicting happiness.
Assessing the General Health Level of Accountant Staff of Shiraz University of Medical Sciences and its Related factors
Authors: SALVARZI Elham , ASADI Nasrin
Published: November 2020

Introduction: In recent decades, there have been profound changes in the nature of jobs that have had an impact on employees’ health. It is important to measure people’s perceptions and feelings about their health. This study aimed to evaluate the general health level of the accountant staff of Shiraz University of Medical Sciences and some related factors.
Methods: This study is cross-sectional (descriptive-analytical). The statistical population consists of all accountants of Shiraz University of Medical Sciences. 50 accountants and 50 non-accountants were chosen with census method as the sample size. Data collection method was performed using demographic characteristics questionnaire and GHQ-28 standard general health questionnaire. Finally, the results were analyzed using descriptive-analytical statistics and SPSS ver. 19 software.
Results: The results of the mental health assessment showed that entirely 53% of the total study participants had a disorder in at least one area of public health. Also, among different areas of public health, the most common disorder was depression, and the lowest prevalence was related to physical health.
Conclusion: Due to the relatively high prevalence of mental disorders (anxiety and depression) in accountants compared to non-accountants studied, it is suggested that the necessary planning provided in the field of individual skills and macro-ergonomics to increase their capabilities and psychological capacity.
A digital solution for risk-oriented management of thermal power plant process equipment condition
Authors: Boiko Evgueny , Polikarpov Igor , Bobrov Aleksey , Sizintsov Sergey , Volnev Valeriy , Shishmarev Pavel
Published: November 2020

According to digital engineering, an intelligent digital infrastructure is intended to optimize performance of thermal power plants. This paper presents an intelligent digital approach to power facility management. As an example, Siberian Generating Company thermal power plants were considered. The authors have developed specialized software able to control and predict thermal power plant process equipment conditions comparing monitoring data and failure probabilities with appropriate mathematical models. Based on a life-cycle monitoring model, a management methodology was created to be applied to technical and business processes of a power facility to improve its maintenance strategy.
Diseño e implementación de un prototipo inhibidor de un vehículo aéreo no tripulado (UAV)
Authors: Cárdenas Triana Jhon Jairo , Jaramillo Álvarez Andrés Felipe , Gómez Pinzón Darwin Leonardo , Duarte Brito Iván Darío
Published: November 2020

En los últimos años, la proliferación y fácil acceso a los vehículos aéreos no tripulados (uav) ha causado un gran número de incidentes en el mundo. Los gobiernos han aunado esfuerzos para regular y controlar la operación de estos sistemas, al impulsar la creación de soluciones que permitan detectar y mitigar posibles ataques mediante estas plataformas. En el presente artículo se describe el proceso de diseño e implementación de un prototipo de inhibición de uav para las bandas gps (L1 y L2), WiFi 2.4 GHz y WiFi 5.8 GHz. Los resultados de las pruebas realizadas mostraron un alcance de inhibición de 150m con una potencia de transmisión por banda menor a 25 dBm.
Perceived Parental Monitoring: A Systematic Review of Monitoring Instruments
Authors: Handschuh Caroline , Mokkink Lidwine B. , Smaldone Arlene
Published: November 2020

Background and purpose

The purpose of this systematic review was to evaluate parental monitoring instruments and the theoretical perspectives informing their development.

Methods

Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, seven databases were searched for original studies using a monitoring instrument. The psychometric properties of each identified instrument were assessed using the “COnsensus-based Standards for the selection of health status Measurement INstruments” (COSMIN) methodology.

Results

Of 2,245 articles identified, 72 studies representing six parental monitoring instruments met inclusion criteria. Quality of reporting on psychometric properties varied widely across instruments with only three including content validation studies.

Conclusions

Findings of this review reveal inattention to the psychometric quality of child self-reported monitoring instruments. Future research must focus on the psychometric quality of instruments used to measure the parent–child relationship.
Exploring the Reliability and Validity of the Adapted Arabic Sense of Coherence Scale
Authors: Al-Yateem Nabeel , Alrimawi Intima , Fakhry Randa , AlShujairi Arwa , Rahman Syed Azizur , Al Marzouqi Amina , Rossiter Rachel
Published: November 2020

Background and purpose

Applying strategies that improve sense of coherence (SOC) may positively affect adolescents’ wellbeing. This may be particularly beneficial for those with chronic conditions. Therefore, having a valid measurement tool for SOC is important. This study assessed the validity and reliability of the Arabic version of the SOC questionnaire (A-SOC). Secondary objectives were to establish baseline data on SOC levels in a population of adolescents in the United Arab Emirates.

Methods

We used a cross-sectional correlational design.

Results

The A-SOC was found to be a valid tool, with a Cronbach’s alpha of 0.75. The mean A-SOC score in the study sample was 57.38.

Conclusions

Following an initial assessment of children’s SOC, healthcare professionals could implement strategies that improve SOC for this population, thereby improving their general wellbeing.
Portuguese Version of the 12-Item Violence Prevention Climate Scale: Test of Psychometric Properties
Authors: Pacheco Emelda , Bártolo Ana , Pereira Anabela , Duarte João Carvalho , Silva Carlos F.
Published: November 2020

Background and Purpose

A violence prevention climate is critical for nurses’ well-being but also for nursing practice and the quality of care. This study examined the reliability and factor validity of the European Portuguese version of the 12-item Violence Prevention Climate Scale (VPCS).

Methods

Data came from a sample of 120 nurses providing care in Portugal. Confirmatory factor analysis was used to test the structural theory of the scale.

Results

First and second-order confirmatory factor analysis models showed identical goodness-of-fit suggesting the adequacy of the models to the sample data. Our results also provide evidence of composite reliability, and convergent and discriminant validity.

Conclusions

Consistent with previous studies, data from this study showed that the Portuguese version of the 12-item VPCS is a reliable and valid scale to evaluate nurses’ perceptions of a violence prevention climate.
Conocimientos, actitudes y prácticas sobre salud sexual y reproductiva en una población posterior a un brote epidémico de Zika
Authors:   ,   Universidad Peruana de Ciencias Aplicadas (UPC), Casella Fernandez Alfredo Eduardo , Limas Haro Daniela Victoria
Published: November 2020

Objetivos: Describir conocimientos, actitudes y prácticas sobre sobre salud sexual y reproductiva en una población afectada por un brote epidémico de Zika en el año 2017 en el distrito de Pueblo Nuevo, Chincha. Materiales y métodos: Se realizó un estudio transversal utilizando como instrumento una adaptación local de la “Encuesta de conocimientos, actitudes y prácticas: Zika y sus posibles complicaciones” desarrollada por OMS. Se encuestó a pobladores que tuvieron un resultado positivo a la prueba molecular (PCR RT) para Zika durante el brote. Resultados: El síntoma más identificado fue fiebre en 76.32% de casos. 91.4% pudo reconocer el mecanismo de transmisión mediado por el vector. 31.91% manifestó la vía sexual de transmisión. En cuanto a las consecuencias para el feto, 54.26% afirmó que hay riesgo de que nazca con algún tipo de discapacidad, 36.17% que tenga algún tipo de déficit en el desarrollo y el 54.25% afirmó que existe riesgo de que nazca con microcefalia. El 50% de la población afirmó equivocadamente que parte del tratamiento para la enfermedad por virus Zika incluye el uso de antibióticos. Para disminuir la transmisión vectorial, el uso de repelente representó 52.13% y el uso de mosquiteros, 42.55%. El uso de preservativo representó 22.34% y la abstinencia sexual, 7.4%. Conclusiones: Nuestros resultados nos permiten concluir que al parecer la información brindada en torno a prevención secundaria no ha sido totalmente entendida por la población estudiada, lo que lleva a que puedan persistir prácticas de riesgo y la enfermedad continúe trasmitiéndose en la población.
Determinantes sociales asociados al uso de métodos anticonceptivos reversibles de larga duración en mujeres peruanas en edad fértil, 2016
Authors:   ,   Universidad Peruana de Ciencias Aplicadas (UPC), Sánchez Pérez Susana Angélica , Tay Rivera Leylin Amalia
Published: November 2020

Objetivo: Evaluar si es que los determinantes sociales se asocian al uso de métodos anticonceptivos reversibles de larga duración (LARC) en mujeres peruanas, utilizando una muestra nacionalmente representativa en el año 2016. Métodos: Estudio transversal analítico secundario de la Encuesta Demográfica y de Salud Familiar (ENDES) 2016. Nuestra población fue de 17 969 mujeres en edad fértil (15 a 35 años), sexualmente activas. La variable principal fue el uso actual de implante o dispositivo intrauterino (sí/no), y los determinantes sociales fueron nivel socioeconómico, nivel educativo, área geográfica, idioma y región. Calculamos razones de prevalencia crudas y ajustadas utilizando regresión de Poisson. Resultados: La prevalencia de vida de uso de LARC fue 3.6% ; 1.9% usó DIU y 1.7%, implante. En el análisis multivariable, se encontró que la prevalencia de uso de LARC en mujeres más pobres es 57% menor que la prevalencia del uso de LARC en la posición socioeconómica más alta [RPa: 0.43; IC95%: 0.23 a 0.75]. La prevalencia de uso de LARC en mujeres con un nivel educativo superior es 64% más que en las mujeres con estudios primarios (RPa: 0.36; IC95%: 0.24 a 0.55). Conclusión: La prevalencia del uso de LARC en las mujeres en edad fértil con baja posición socioeconómica es menor a comparación de la prevalencia del uso de LARC en las mujeres con una mejor posición socioeconómica. Nivel educativo y ruralidad también se asociaron.
Croissance radiale du pin d’Alep (Pinus halepensis Mill.) en fonction des paramètres stationnels dans les massifs forestiers naturels de l’Atlas saharien algérien
Authors: GUIT Brahim , NEDJIMI Bouzid
Published: November 2020

La présente étude dendroécologique a été conduite dans les pinèdes de Senalba Gharbi, Senalba Chergui et Sehary Guebli situées en zone semi-aride de la région de Djelfa (Atlas saharien algérien) et caractérisées par une pluviométrie variant entre 300 et 400 mm/an. Ce sont les derniers massifs arborescents, peuplés de pin d’Alep, Pinus halepensis, situés à la limite du Sahara. Le maintien de ces peuplements soumis à une dégradation continuelle depuis plusieurs décennies constitue un enjeu écologique majeur. À partir de transects intégrant les variations d’altitude, d’exposition et de position topographique, 18 placettes d’échantillonnage ont été sélectionnées. Dans chaque placette, six arbres parmi les plus dominants ont été sondés à la tarière de Pressler, à raison de deux carottes de sondage par arbre, soit un total de 216 carottes-échantillons analysées sur une période de 53 ans. L’analyse des cernes a mis en évidence que l’exposition, l’altitude et la position topographique sont déterminantes pour l’accroissement des pins. L’étude des séries dendrochronologiques relatives à la largeur des cernes a montré une tendance générale décroissante de 10,5 %. La prise en compte de ces données relatives à la croissance radiale contribuera à identifier les arbres à forte probabilité de déclin suite aux changements climatiques.
Biodiversité et services écosystémiques en forêts tropicales : le rôle des affectations des terres forestières dans la région du Dja, Cameroun
Authors: LHOEST Simon
Published: November 2020

Des dizaines de millions de personnes dépendent des forêts tropicales pour leur subsistance en Afrique centrale. Ces écosystèmes abritent une biodiversité unique et fournissent d'importants services écosystémiques (SE), qui peuvent varier en fonction des stratégies de gestion. Dans cette thèse de doctorat, nous avons évalué la biodiversité et les services écosystémiques dans le paysage du Dja au Cameroun, dans trois affectations des terres forestières : une aire protégée, une concession forestière certifiée FSC et trois forêts communautaires. Tout d'abord, nous avons évalué la valeur de conservation des forêts sur la base de la richesse et de la composition en espèces de deux groupes taxonomiques : les mammifères et les bousiers. Les espèces les plus grandes et les plus menacées ont été détectées dans l’aire protégée et les zones les plus éloignées de la concession forestière, mieux préservées de l'influence humaine. En revanche, les forêts communautaires sont particulièrement défaunées et dégradées en raison de leur proximité avec les routes et les villages, mais elles couvrent des superficies beaucoup plus limitées et conservent une canopée fermée. Deuxièmement, des entretiens identifiant les perceptions de l'offre en SE ont montré que, contrairement aux services de régulation qui ont été rarement mentionnés, les services d’approvisionnement et culturels sont les plus importants pour les populations locales. Parmi ceux-ci, la viande de brousse est le seul service pour lequel l’offre de la forêt n’est pas suffisante pour les populations locales. Troisièmement, en combinant des entretiens et enquêtes de terrain, nous avons quantifié l'utilisation de huit SE d'approvisionnement et culturels par les populations locales. Nous avons constaté que le bois de feu et le bois d'œuvre sont utilisés de manière durable par les populations locales, tandis que la chasse et la consommation de viande de brousse dépassent les seuils de durabilité. Concilier la conservation de la faune sauvage, la sécurité alimentaire et les pratiques de chasse durable est un défi majeur en Afrique centrale. Pour ce faire, il est essentiel d’intégrer toutes les parties prenantes dans les stratégies de gestion forestière durable, permettant d’identifier les leviers sociaux qui sous-tendent les changements de comportement des utilisateurs des forêts.
A UNIVERSIDADE ABERTA À COMUNIDADE: CONHECENDO O COMPLEXO DE LABORATÓRIOS DA SAÚDE – CAMPUS DE PALMAS
Authors: Trindade Gonçalves de Lima Adriane , Nogueira de Sousa Leite Kércio Jeaneryson , Queiroz Fernandes Aline , Dantas da Silva Andressa Diúlia , Vasconcelos Silva Ediana
Published: November 2020

O presente trabalho apresenta discussões acerca da vivência prática de visitas técnicas realizadas pela demanda externa de estudantes de colônia de férias, ensino fundamental, médio e superior ao complexo de laboratórios da saúde da Universidade Federal do Tocantins (UFT). Ao proporcionar visitas técnicas se estreita as relações entre a comunidade e a universidade ampliando as oportunidades para obtenção de conhecimentos com benefícios mútuos, que é o objetivo do trabalho. Foram confeccionados materiais para apresentação dos métodos de ingresso ao ensino superior, assim como apresentar os cursos ofertados na UFT para tentar despertar o interesse por esta instituição, além disto, a equipe do projeto apresenta os conteúdos nos laboratórios que as escolas visam aprofundamento prático. Dessa forma, o projeto teve uma ótima aceitação pública, tanto que, foram recebidas escolas de todo o estado do Tocantins, desde os municípios circunvizinhos aos periféricos, com uma demanda média de três visitas por mês. As experiências vivenciadas pelos extensionistas e colaboradores do projeto além de despertar o interesse pela docência favorece o vínculo com a comunidade externa que é de suma importância para o futuro profissional.
 
 
PALAVRAS-CHAVE: Universidade. Visitas. Ciências Básica. Comunidade. Ensino Médio.
PADU ARAGUAÍNA: experiência do pré-enem comunitário
Authors: Henrique S. de Paula Murilo , Gonçalves Costa Kênia , Manoel Sanches da Cruz José
Published: November 2020

No objetivo de oferecer oportunidade, democratizando o acesso à universidade através de um projeto voltado para a comunidade estudantil de Araguaína, em março de 2018 teve-se início as atividades letivas do Cursinho pré-enem comunitário, com aulas oferecidas na Universidade Federal do Tocantins, campus de Araguaína, sendo: a) realizados nos finais de semana; b) trabalhando as 4 áreas do conhecimento incluindo redação; c) aulas ministradas pelos próprios acadêmicos da instituição. Com a ideia de procurar parcerias para o material pedagógico a ser seguido, foi fechado uma parceria com o cursinho pré-vestibular “Descomplica”, que nos autorizou a utilizar o seu material Enem em 100 dias, que nele contém várias questões divididas por conteúdos que mais caiem no ENEM além de ter o material teórico das 4 áreas de conhecimento. Os resultados foram quali-quantitativos, no qual os números de inscritos para participarem como alunos do projeto, foram 498, ficando claro a importância desse projeto para a comunidade de Araguaína e com um resultado médio de mais de 80 alunos aprovados no ENEM e vestibulares de instituições de ensino superior, mostrando assim, um resultado satisfatório do projeto final.

 

PALAVRAS-CHAVE: Cursinho. Educação. Comunidade. Integração. ENEM.
Selective Toxicity of Biosynthesised Silver Nanoparticles on
MCF-7 and MDA MB-231 Breast Cancer Cell Lines
Authors: Aglin A Annie , Shruthi P , Subathra S
Published: November 2020

Biosynthesized nanoparticles have many applications in the field of biopharmaceutics due to its high surface to volume ratio, less toxicity and synergistic effects with conjugated biomolecules. This study reports the selective cytotoxicity effect of
biosynthesized silver nanoparticles (AgNPs) on breast cancer cell lines MCF-7 and MDA MB-231. AgNPs were synthesized using an aqueous extract of Mollugo cerviana species of plant and characterized using UV–visible spectroscopy, zeta potential analyser, SEM, FT-IR, XRD, and EDX. An UV-visible spectrum of the extract shows the surface plasmon resonance peak of AgNPs at 420 nm. SEM analysis results confirm the sphericity of the AgNPs whose size isin the range of 50 – 100 nm. The zeta potential value of -27 mV indicates the stability of the biosynthesized AgNPs. Dose-Dependent cytotoxicity was observed against human breast cancer cells lines MCF-7 and MDA MB-231. The inhibitory concentrations (IC50) are 21.53 μg/mL and 25.52 μg/mL respectively. There was no significant toxicity against Vero cells below 100 μg/mL concentration of AgNPs. The data obtained in the study reveal the potential therapeutic value of biogenic silver nanoparticles in cancer treatment and further studies are required to elucidate the mechanism of selective activity of biosynthesized AgNPs on cancer cells.
Biodiesel Synthesis Through Transesterification of Used
Cooking Oil Using NaN3/Modified Clay Catalyst and The
effect of Acetone as Co-Solvent
Authors: Salim Ilham , Lepa Alex A. , Kafiar Frans P.
Published: November 2020

Transesterification of used cooking oil (UCO) using NaN3/modified clay catalyst and
investigation of the acetone effect have been done.The modified clay catalyst was synthesized
by destructing the Merauke clay with8M HCl solution, then fusion by NaOH pellet, followed
by treating with AlCl3.6H2O, CTAB and distilled water.Then the mixture was regulated to pH
of 11.5. Next, the mixture was then poured into a reactor for hydrothermal process at 140 oC
for 48 h. The results of the dealumination of clay was characterized byX-ray Fluorescence and
the synthesized zeolite was characterized using surface area analyzer and X-Ray
Diffraction.The synthesized zeolite was impregnated by NaN3 as a precussor produced the
NaN3/modified clay catalyst sample.Rasio of catalyst :UCO : methanol was 1.0 : 20.0 : 13.3
and the ratio of aceton to methanol was 2:1. The transesterificationprocess was carried out at 60
and 65oC. The liquid product was analyzed using Gas Chromatography Mass
Spectrometer.The resulted showed that themodified clay had surface area of 5.5685 m2/g, pore
volume of 0.0126 cm3/g, and pore diameter of 8.871 nm. The results of measurements with
XRD produced a different form of chromatogram and type of mineral. The main mineral was
gismondine.In this research, The transesterification of UCO using NaN3/MC catalyst at 60 oC
resulted methyl esters of 65.3 wt %.Furthermore, after adding acetone to the same treatment,
the resulting methyl ester was 82.7 wt%.The transesterification of UCO at 65 ° C using
NaN3/MC catalyst and acetone produced the highest content of methyl esters or biodiesel that
was equal to 94.4 wt %.
Stability constants of Cu(II) and Zn(II) Metal complexes
with Ethambutol hydrochloride and Alanine, Glycine,
Isoleucine and Phenylalanine amino acids
Authors: Magare Baban , Ubale Milind
Published: November 2020

Stability constants of binary and ternary complexes of Cu(II) and Zn(II) transition
metal ions with ethambutol hydrochloride drug (L) and alanine, glycine, isoleucine and phenyl
alanine amino acids(R) have been determined potentiometrically at 300C temperature and 0.1
M ionic strength(NaClO4) in aqueous solution. The formations of complexes were confirmed
from deviation of curves. Stability of complexes was discussed in terms of different relative
stability parameters.
Models and Techniques of Automatic Humidity Temperature
setting on Oyster Mushrooms using Digital Skylite
Authors: Ananto  , Sandi Nofrita , Budaraga I Ketut
Published: November 2020

Oyster mushroom cultivation in areas that have high temperatures requires
special maintenance techniques. The development of technology now makes it easy to
carry out maintenance treatments for oyster mushrooms. Not even a few can regulate
temperature and humidity automatically in the cultivation room. With an automatic
temperature regulator can facilitate maintenance and minimize the failure of oyster
mushroom production. However, the humidity temperature setting is not perfect enough
if there are no models and adjusting techniques. The model that will be made by using
Digital Skylite which is connected to the current source, Digital Skylite functions as an
automatic timer. The purpose of this research is to get the right tool design model using
Digital Skylite and to see the correct length of time in the Digital Skylite settings. The
method used in data collection in this study is Direct Observation (Observation),
Observation is carried out by examining and observing the object under study directly.
The results of the study were to obtain a maximum temperature regulation design
model.
Effect of Different Drying Methods
on Phytochemical Content of Caulerpa lentillifera from Kei
Islands
Authors: Tapotubun Alfonsina Marthina , Rieuwpassa Fredrik , Supratman Unang , Setha Beni
Published: November 2020

Seaweed, Caulerpa sp., is one of the natural materials that contain many kinds of
bioactive compounds depending on species and habitat. The aim of this study was to know the
effect of sun drying method on the phytochemical content of C. lentillifera from Kei Islands
waters, Southeast Moluccas. The study consisted of several steps,C. lentillifera sample
collection using sampling purposive method, direct sun drying and indirect wind drying
methods, methanol extraction, and phytochemical test using Harborne method. Crude extract
of C. lentillifera in indirect wind drying method was higher than that in direct sun drying.
Alkaloid, terpenoid and steroid were found in C. lentillifera from Kei Islands on both drying
methods. Saponin was only found in indirect wind drying method. Phenolic compounds were
not found in C. lentillifera samples from both drying methods