bluuebunny/crossref_metadata_2025 huggingface dataset:
Public Interest and Behavior Change in the United States Regarding Colorectal Cancer Following the Death of Chadwick Boseman: Infodemiology Investigation of Internet Search Trends Nationally and in At-Risk Areas (Preprint)
Authors: Sajjadi Nicholas B , Feldman Kaylea , Shepard Samuel , Reddy Arjun K , Torgerson Trevor , Hartwell Micah , Vassar Matt
Published: August 2021

BACKGROUND

Colorectal cancer (CRC) has the third highest cancer mortality rate in the United States. Enhanced screening has reduced mortality rates; however, certain populations remain at high risk, notably African Americans. Raising awareness among at-risk populations may lead to improved CRC outcomes. The influence of celebrity death and illness is an important driver of public awareness. As such, the death of actor Chadwick Boseman from CRC may have influenced CRC awareness.

OBJECTIVE

We sought to assess the influence of Chadwick Boseman’s death on public interest in CRC in the United States, evidenced by internet searches, website traffic, and donations to prominent cancer organizations.

METHODS

We used an auto-regressive integrated moving average model to forecast Google searching trends for the topic “Colorectal cancer” in the United States. We performed bivariate and multivariable regressions on state-wise CRC incidence rate
and percent Black population. We obtained data from the American Cancer Society (ACS) and the Colon Cancer Foundation (CCF) for information regarding changes in website traffic and donations.

RESULTS

The expected national relative search volume (RSV) for colorectal cancer was 2.71 (95% CI 1.76-3.66), reflecting a 3590% (95% CI 2632%-5582%) increase compared to the expected values. With multivariable regression, the statewise RSV increased for each percent Black population by 1.09 (SE 0.18, P<.001), with 42% of the variance explained (P<.001). The American Cancer Society reported a 58,000% increase in CRC-related website traffic the weekend following Chadwick Boseman’s death compared to the weekend before. The Colon Cancer Foundation reported a 331% increase in donations and a 144% increase in revenue in the month following Boseman’s death compared to the month prior.

CONCLUSIONS

Our results suggest that Chadwick Boseman’s death was associated with substantial increases in awareness of CRC. Increased awareness of CRC may support earlier detection and better prognoses.
Telehealth Interventions and Outcomes Across Rural Communities in the United States: Narrative Review (Preprint)
Authors: Butzner Michael , Cuffee Yendelela
Published: August 2021

BACKGROUND

In rural communities, there are gaps in describing the design and effectiveness of technology interventions for treating diseases and addressing determinants of health.

OBJECTIVE

The aim of this study is to evaluate literature on current applications, therapeutic areas, and outcomes of telehealth interventions in rural communities in the United States.

METHODS

A narrative review of studies published on PubMed from January 2017 to December 2020 was conducted. Key search terms included telehealth, telemedicine, rural, and outcomes.

RESULTS

Among 15 included studies, 9 studies analyzed telehealth interventions in patients, 3 in health care professionals, and 3 in both patients and health care professionals. The included studies reported positive outcomes and experiences of telehealth use in rural populations including acceptability and increased satisfaction; they also noted that technology is convenient and efficient. Other notable benefits included decreased direct and indirect costs to the patient (travel cost and time) and health care service provider (staffing), lower onsite health care resource utilization, improved physician recruitment and retention, improved access to care, and increased education and training of patients and health care professionals.

CONCLUSIONS

Telehealth models were associated with positive outcomes for patients and health care professionals, suggesting these models are feasible and can be effective. Future telehealth interventions and studies examining these programs are warranted, especially in rural communities, and future research should evaluate the impact of increased telehealth use as a result of the COVID-19 pandemic.
Acceptability, Feasibility, and Quality of Telehealth for Adolescent Health Care Delivery During the COVID-19 Pandemic: Cross-sectional Study of Patient and Family Experiences (Preprint)
Authors: Wood Sarah M , Pickel Julia , Phillips Alexis W , Baber Kari , Chuo John , Maleki Pegah , Faust Haley L , Petsis Danielle , Apple Danielle E , Dowshen Nadia , Schwartz Lisa A
Published: August 2021

BACKGROUND

Data regarding the acceptability, feasibility, and quality of telehealth among adolescents and young adults (AYA) and their parents and caregivers (caregivers) are lacking.

OBJECTIVE

The aim of this study was to assess the noninferiority of telehealth versus in-person visits by comparing acceptability with respect to efficiency, effectiveness, equity, patient-centeredness, and confidentiality.

METHODS

Cross-sectional web-based surveys were sent to caregivers and AYA following video visits within an Adolescent Medicine subspecialty clinic in May-July 2020. Proportions of AYA and caregivers who rated telehealth as noninferior were compared using chi-squared tests. Feasibility was assessed via items measuring technical difficulties. Deductive thematic analysis using the Institute of Medicine dimensions of health care quality was used to code open-ended question responses.

RESULTS

Survey response rates were 20.5% (55/268) for AYA and 21.8% (123/563) for caregivers. The majority of the respondents were White cisgender females. Most AYA and caregivers rated telehealth as noninferior to in-person visits with respect to confidentiality, communication, medication management, and mental health care. A higher proportion of AYA compared to caregivers found telehealth inferior with respect to confidentiality (11/51, 22% vs 3/118, 2.5%, P<.001). One-quarter (14/55) of the AYA patients and 31.7% (39/123) of the caregivers reported technical difficulties. The dominant themes in the qualitative data included advantages of telehealth for efficiency and equity of health care delivery. However, respondents’ concerns included reduced safety and effectiveness of care, particularly for patients with eating disorders, owing to lack of hands-on examinations, collection of vital signs, and laboratory testing.

CONCLUSIONS

Telehealth was highly acceptable among AYA and caregivers. Future optimization should include improving privacy, ameliorating technical difficulties, and standardizing at-home methods of obtaining patient data to assure patient safety.
Effects of a National Preventive Intervention Against Potential COVID-19–Related Gambling Problems in Online Gamblers: Self-Report Survey Study (Preprint)
Authors: Håkansson Anders , Sundvall Andreas , Lyckberg Axel
Published: August 2021

BACKGROUND

The COVID-19 pandemic has been suspected to increase gambling problems in the population. Several governments introduced COVID-19–specific interventions early with the aim to prevent gambling problems, but their effects have not been evaluated.

OBJECTIVE

This study aimed to evaluate a Swedish COVID-19–related temporary legislation imposing an automated weekly deposit limit for online casino gambling.

METHODS

The study was an anonymous survey sent by a state-owned gambling operator to online gamblers (N=619), among whom 54.0% (n=334) were moderate-risk/problem gamblers who reached the weekly limit on online gambling during the summer of 2020.

RESULTS

Overall, 60.1% (372/619) were aware of having been limited by the COVID-19–related deposit limit, and a minority (145/619, 23.4%) perceived the intervention as fairly bad or very bad. Among those aware of the intervention, 38.7% (144/372) believed the intervention decreased their overall gambling, whereas 7.8% (29/372) believed it rather increased it. However, 82.5% (307/372) reported having gambled at more than one operator after the limit, and the most common gambling type reported to have increased at another operator was online casino (42% among moderate-risk/problem gamblers and 19% among others; P<.001). An increase in gambling following the intervention was associated with being a moderate-risk/problem gambler and having negative attitudes toward the intervention.

CONCLUSIONS

The weekly deposit limit had relatively high acceptability, but the study highlights the limitations of a single-operator deposit limit, given the high number of gamblers also reporting gambling at other operators and the lower effect in clients with gambling problems.
Nanotecnología en la periferia: los casos de Costa Rica, Uruguay y Venezuela
Authors: Chiancone Adriana , López María Sonsiré , Vega Baudrit José Roberto
Published: August 2021

Este trabajo aborda la situación actual de la nanotecnología en tres países latinoamericanos: Costa Rica, Uruguay y Venezuela. Se busca caracterizar el trabajo en este campo en esos países y desarrollar una primera aproximación de carácter comparativo. La metodología adoptada incluyó revisión documental y análisis de bases de datos especializadas, fundamentalmente la base StatNano. El artículo describe y compara en los tres países la incorporación de la nanotecnología en la agenda y en las políticas públicas; instrumentos de política, financiamiento, gobernanza y nanoseguridad. Se caracterizaron, asimismo, las actividades de investigación y desarrollo (I+D) en términos de producción científica y de innovación tecnológica. Del estudio realizado surge que las últimas dos décadas han sido el marco temporal de un proceso de creciente institucionalización e internacionalización en el área de la nanotecnología en los países considerados, en los cuales el desarrollo de este campo ha seguido fundamentalmente pautas nacionales, pero enfrenta desafíos comunes.
Coupled Field Analysis of a Chimney Used in Cement Industry
Authors: Rajput Shrikant D
Published: August 2021

Abstract: Chimney, which shape the ultimate factor of a machine using a flue fuel consisting of boiler, play a vital function in maintaining performance, draft, and many others, of a gadget and additionally in minimizing the atmospheric pollution. Metal chimneys also are called steel stacks. The metallic chimneys are product of metal plates and supported on basis. The steel chimneys are used to get away and disperse the flue gases to this sort of height that the gases do not contaminate surrounding. In this thesis, chimney can be designed thinking about dead load and wind load. The bureau of Indian requirements (BIS) layout codes techniques can be used for the design of the chimney. The chimney turned into considered as a cantilever beam with annular cross segment. 3-D version of the chimney is finished in pro/engineer and matched area analysis is accomplished on the chimney in ANSYS. A simplified model of chimneys with various thicknesses like 10mm, 12mm, 14mm and 16mm were modeled environment. Keywords: Chimney, Flue Gases, Coupled Field Analysis
Review Paper on Machine learning-based prediction of Corona Virus
Authors: Tiwari Miss. Aakansha P.
Published: August 2021

Abstract: Effective contact tracing of SARS-CoV-2 enables quick and efficient diagnosis of COVID-19 and might mitigate the burden on healthcare system. Prediction models that combine several features to approximate the danger of infection are developed. These aim to help medical examiners worldwide in treatment of patients, especially within the context of limited healthcare resources. They established a machine learning approach that trained on records from 51,831 tested individuals (of whom 4769 were confirmed to own COVID-19 coronavirus). Test set contained data from the upcoming week (47,401 tested individuals of whom 3624 were confirmed to own COVID-19 disease). Their model predicted COVID-19 test results with highest accuracy using only eight binary features: sex, age ≥60 years, known contact with infected patients, and also the appearance of 5 initial clinical symptoms appeared. Generally, supported the nationwide data publicly reported by the Israeli Ministry of Health, they developed a model that detects COVID-19 cases by simple features accessed by asking basic inquiries to the affected patient. Their framework may be used, among other considerations, to prioritize testing for COVID-19 when testing resources are limited and important. Keywords: Machine Learning, SARS-COV-2, COVID-19, Coronavirus.
A Comparative Study on Covid-19 Corona Virus Variants: Alpha, Beta, Gamma, Delta: Review Paper
Authors: Nath Anamika
Published: August 2021

Abstract: Here in this review paper we basically discuss about the two covid-19 originate hypothesis, one is zoonotic spill-over hypothesis and another is lab leak hypothesis. This lab leak hypothesis recently on news due to substantial evidence found by USA. There are other lab leak phenomenon happen in past like 1977 Russian flu, most critics believe in that time it was also a lab escape phenomenon. Our review paper is also focused on various covid variants, till now and there comparative study. Here in this paper, we attempt to find cause of the COVID origination, and also represent a comparative study of various SARS-COV2 variants. We also discussed how it seems in near future whether pandemic will end soon or we have to adopt to live with the virus? Keywords: Zoonotic Spillover hypothesis, Lab leak hypothesis, Alpha variant, Beta variant, Gamma variant, Delta variant, comparative study, pandemic, Covid-19, SARS-COV-2, Wuhan Institute of Virology, Wuhan Sea food market
Diálisis Peritoneal en tiempos difíciles.
Authors: Uribe Betancur José Mauricio , Molano Triviño Alejandra Patricia
Published: August 2021

La Diálisis Peritoneal es una terapia igual o superior a la hemodiálisis, es costo-efectiva y ha permitido el soporte dialítico vital a poblaciones víctimas de desastres naturales. En las actuales circunstancias de pandemia y aislamiento social por el COVID 19, la diálisis peritoneal, al ser una terapia domiciliaria, reduce los riesgo de exposición para pacientes, cuidadores y equipos de atención, sin embargo, es una terapia subutilizada a nivel global. Al mostrar los beneficios de la diálisis peritoneal sobre la hemodiálisis y los desenlaces de esta en tiempos de desastre, se presenta como la mejor alternativa para estos tiempos de pandemia. Se llevó a cabo una revisión no sistemática de la literatura, en busca de los beneficios de la diálisis peritoneal vs hemodiálisis y sus desenlaces en situaciones de calamidad. En esta se incluyeron 75 artículos publicados entre1993 y marzo del 2020. Estos estudios muestran los múltiples beneficios de la diálisis peritoneal sobre la hemodiálisis y ser la mejor alternativa en situaciones de desastre. Por lo anterior concluimos que la diálisis peritoneal tiene significativos  beneficios sobre la hemodiálisis, entre estos una mayor supervivencia, especialmente en los dos primeros años, una menor velocidad en la tasa de perdida de la función renal residual, permite preservar los accesos vasculares, hay mayor supervivencia post trasplante, además de ser más económica y en situaciones de desastres naturales, como lo es esta pandemia, ha facilitado la continuidad de la atención y el soporte dialítico agudo o crónico para las víctimas.
Hydropedological behavior of a chromic vertisol under different plant covers
Authors: Villazón-Gómez Juan Alejandro
Published: August 2021

Vertisols present edaphic limiting factors primarily of a physical nature. The study of their hydropedology, supported by multivariate techniques, is of vital importance. The work was developed with the objective of determining, through multivariate analysis, the hydropedological behavior of a Chromic Vertisol under different plant covers. In areas under natural grass, sugarcane, and secondary forest, belonging to the Holguín Sugarcane Provincial Research Station, three random points were chosen in each. Soil penetration resistance, soil bulk density, gravimetric moisture, and volumetric moisture at depths of 0-10, 10-20 and 20-30cm were determined. A Principal Component Analysis and Canonical Correlations were performed using Statistica 7 and Statgraphics Plus XV.II. The first two components made the greatest contribution to the variance, with 83.09%. The greatest contributions (1st component) were given by moisture at all depths and by soil compaction at a depth of 20-30 cm. The 2nd component was influenced by soil compaction in the 0-10 and 10-20cm layers. There was a contrast between the variables that characterize the solid phase with which they describe the liquid phase of the soil. There was a correlation between soil moisture and compaction. The first two pairs of canonical variables showed a strong linear correlation and regularly dispersed along the central values of the model, with a remarkable grouping by depths.
Testbed for Sub-Nyquist Wideband Spectrum Monitoring
Authors: Medina Lee Juan Felipe , López-Parrado Alexander , Vera Tasamá Alexander , Bohórquez Palacio Duvier de Jesús
Published: August 2021

Radioelectric spectrum management is a concern for today’s world, mainly due to the misuse that has been given to this resource through the years, especially on the UHF band. To address this problem, a testbed for sub-Nyquist Wideband Spectrum Monitoring was built, that includes a web interface to remotely measure occupancy of the UHF band.

To achieve the above, an RF interface that allows tuning UHF frequencies with an instantaneous bandwidth of 95 MHz was built. Afterwards, a Random Demodulator was connected, and then an embedded system performed sub--Nyquist sampling and spectrum recovery. The embedded system connected to an information system that serves a web page, through which remote users can perform UHF band monitoring.

Experimental results showed that spectrum sensing can be achieved by using different algorithms on certain sparse spectra. In addition, the aforementioned web interface allowed simultaneous user connections, in order to perform independent measurements by sharing a hardware subsystem.
Multiple and early hyperbaric oxygen treatments enhance muscle healing after muscle contusion injury: a pilot study
Authors:   Department of Orthopedic Surgery, Medical Hospital, Tokyo Medical and Dental University, Tokyo, Japan, Yamamoto Naoki ,   Department of Hyperbaric Medical Center, Medical Hospital, Tokyo Medical and Dental University, Tokyo, Japan, Oyaizu Takuya ,   Department of Hyperbaric Medical Center, Medical Hospital, Tokyo Medical and Dental University, Tokyo, Japan,   Department of Orthopedic Surgery, Saiseikai Kawaguchi General Hospital, Saitama, Japan, Yagishita Kazuyoshi ,   Department of Hyperbaric Medical Center, Medical Hospital, Tokyo Medical and Dental University, Tokyo, Japan, Enomoto Mitsuhiro ,   Department of Hyperbaric Medical Center, Medical Hospital, Tokyo Medical and Dental University, Tokyo, Japan, Horie Masaki ,   Department of Hyperbaric Medical Center, Medical Hospital, Tokyo Medical and Dental University, Tokyo, Japan, Okawa Atsushi ,   Department of Orthopedic Surgery, Medical Hospital, Tokyo Medical and Dental University, Tokyo, Japan
Published: August 2021

Background: The optimal timing of hyperbaric oxygen (HBO2) treatments for the best recovery following muscle injury has yet to be determined. Thus, the optimal number and timing of HBO2 treatments for maximal muscle regeneration were explored. Methods: The HBO2 treatment protocol consisted of 2.5 ATA 100% oxygen for 120 minutes. Muscle-injured rats were randomized to one of 10 groups: single HBO2 treatment immediately after injury (HBO 1T day 0), one day (HBO 1T day 1), three days (HBO 1T day 3) and five days (HBO 1T day 5) after injury; three HBO2 treatments from immediately after injury to two days after injury (HBO 3T day 0-2), from one to three days after injury (HBO 3T day 1-3), from three to five days after injury (HBO 3T day 3-5), from five to seven days after injury (HBO 3T day 5-7); five daily HBO2 treatments (HBO 5T); and no treatment (NT). Results: HBO 5T and HBO 3T day 0-2, days 1-3 and days 3-5 significantly promoted CD206-positive cell infiltration, satellite cell differentiation and muscle regeneration compared to the NT group. Conclusion: Five HBO2 treatments and three HBO2 treatments within three days of injury promote muscle regeneration.
Brain stem and spinal cord demyelination due to acute carbon monoxide poisoning
Authors: Lv Yan , Zhang Yv , Pam Shuyi ,   Department of Hyperbaric Oxygen, The Sixth Medical Center of PLA General Hospital, Haidian District, Beijing, China
Published: August 2021

Demyelination throughout the brain stem and spinal cord caused by acute carbon monoxide (CO) poisoning has not been previously reported. Magnetic resonance imaging (MRI) has revealed that acute CO poisoning primarily affects the subcortical white matter of the bilateral cerebral hemispheres and basal ganglia. Here we report the case of a patient with delayed neuropsychological sequelae (DNS) due to acute CO poisoning. A 28-year-old man was admitted to our department following a suicide attempt by acute CO poisoning. After a six-month pseudo-recovery period, he was diagnosed with DNS, with MRI evidence of demyelinating change of the bilateral cerebral peduncles. Demyelination was identified throughout the brain stem, expanding from the bilateral cerebral peduncles to the medulla oblongata, occurring approximately six months after poisoning. One and a half years after acute CO poisoning, demyelination of the cervical and thoracic spine was observed, most notable in the lateral and posterior cords. It is evident that previously published research on this topic is extremely limited. Perhaps in severe cases of acute CO poisoning the fatality rate is higher, leading to fewer surviving cases for possible study. This may be because a more severe case of acute CO poisoning would result in the higher likelihood of secondary demyelination. This research indicates that clinicians should be aware of the risk of secondary demyelination and take increased precautions such as vitamin B supplementation and administration of low-dose corticosteroids for an extended period of time in order to reduce the extent and severity of demyelination.
Cidadania ambiental e consumo de carnes: entre diálogos, dilemas e perspectivas de consumidores
Authors: Sampaio Dayanne Batista , Carvalho Denis Barros de , Melo Hérica Maria Saraiva
Published: August 2021

Reconhecendo a necessidade de contribuir com as discussões acerca da questão ambiental, este artigo trata da dimensão do consumo enquanto elemento para a cidadania. Relaciona-se consumo politizado, cidadania ambiental e consumo de carnes a partir do seguinte problema: qual(is) a(s) percepção(ões) dos consumidores acerca dos impactos ambientais da produção e do consumo de carnes? Objetivou-se discutir o consumo de carnes e sua relação com a cidadania ambiental. Optou-se pelas técnicas de grupo focal exploratório e entrevista individual em profundidade para a obtenção das informações e pela análise de conteúdo temática para análise do material. Pode-se verificar que o consumo de carnes aparece sempre atrelado a preocupações individuais como o gosto, a saúde e o prazer. Há ainda, um distanciamento reflexivo dos participantes em torno da temática e das suas práticas alimentares.
Sentinel-2 imagery usage on environmental monitoring of land use and occupation in a microwatershed in Central Brazil
Authors: Jesus Novais Jean , Pinto Coelho Lacerda Marilusa
Published: August 2021

In the last decades, sustainability concerns have increased the demand for projects and strategic plans that integrate economic and social aspects, reducing environmental impacts. In this sense, this study aims to monitor land-use adequacy in the Ribeirão Extrema microwatershed, Distrito Federal, based on cross-mapping between land-use and occupation in 2019 and agricultural aptitude map through Geographic Information Systems and Remote sensing. To this end, a hypsometric and thematic database was prepared for the region. Besides, we acquired an image from the Sentinel-2 orbital sensor of October 2019. The image was subjected to classification regarding land-use and occupation, using the MAXVER (maximum likelihood) algorithm. It was observed that 80% of use in 2019 was related to agricultural activities. Kappa index validation reached 81% accuracy. Based on the methodology, we identified 62.33% of agricultural activities occur into its capacity; 4.33%, were used above capacity, causing environmental degradation, especially in permanent preservation areas. The application of the technique was considered satisfactory because the adequacy of land-use in the studied microwatershed could be assessed in order to pursue sustainable development. Continuous analyzes can improve results.
Avaliação de desempenho da coleta de resíduos sólidos em municípios do estado do Pará: proposta de um indicador multivariado
Authors: Ferreira de Souza Caio Cezar , Dos Santos Saraiva Joyce , Bahia Lopes Maria Lúcia , Souza dos Santos Marcos Antônio , Corradi Analaura , Fernandes Assumpção Douglas Junio
Published: August 2021

O crescimento na geração de resíduos sólidos tornou o seu gerenciamento um serviço essencial para as cidades, sendo a coleta domiciliar e seletiva partes fundamentais desse processo. Assim, o objetivo do artigo foi criar um Indicador de Coleta de Resíduos Sólidos (ICRS) dos municípios paraenses, a partir dos dados do Sistema Nacional de Informações sobre Saneamento. A metodologia foi baseada na aplicação da análise fatorial que possibilitou a criação de um indicador, englobando variáveis relativas a coleta seletiva organizada, cobertura da coleta domiciliar urbana e legislação de resíduos sólidos. Os resultados demonstraram que 90% dos 20 municípios analisados apresentaram melhorias em seus ICRS, entre os anos de 2012 e 2018, porém também evidenciaram que a promulgação de legislação não é fator fundamental na implantação de sistemas de coleta seletiva. Dessa forma, políticas públicas mais eficazes são necessárias para que os municípios paraenses alcancem melhores resultados no gerenciamento de seus resíduos sólidos.
Production of cement slabs using sugarcane bagasse ash associated with expanded polystyrene
Authors: Moraes Filho Arnaldo Alberto de , Ribeiro Emerson Schwingel , Gonçalves José Eduardo , Tenório Junior Nelson Nunes , Luciana Cristina Soto Herek Rezende
Published: August 2021

Civil construction is considered a major generator of urban solid waste and one way to mitigate this problem is to invest in modular construction systems, making room for lean and sustainable models. This paper evaluated the potential of Sugarcane Bagasse Ash (SCBA) as composites, combined with the inclusion of expanded polystyrene (EPS) in the production of cement slabs applied to civil construction. For the partial substitution of Portland Cement (PC) the chemical characterization of SCBA by fluorescence and X-ray diffraction was carried out and its production used concentrations from 6.8% to 25.5% of SCBA. In the cementitious plate, tensile strength tests were performed for flexure tensile strength, water absorption and permeability, in accordance to Brazilian guidelines. The results demonstrated the use of SCBA in partial substitution of PC in the proportion of 6.8% and 13.6% with absence of fine sand and 17% with addition of fine sand, allowing its use in a clean, modular and dry construction technology. It is possible to conclude, therefore, that the industrial residue of SCBA can be used in substitution of PC and that the inclusion of EPS in the studied product’s formula increases its volume and decreases its apparent density.
Etnoconhecimento dos apicultores de um município do semiárido potiguar, Nordeste do Brasil
Authors: Piffero Câmara Carlos , De Tasso Moreira Ribeiro Rayane , Bezerra Loiola Maria Iracema
Published: August 2021

Objetivou-se registrar o etnoconhecimento dos apicultores em relação aos recursos florestais e os impactos das mudanças climáticas sobre a flora do município de Marcelino Vieira, Rio Grande do Norte. As ações da pesquisa ocorreram no período de março a julho/2018 e contou com a participação de 20 apicultores selecionados por meio de amostragem não-probabilística a partir dos dados da Associação Comunitária Jefferson Fernandes de Medeiros. Para a obtenção dos dados utilizou-se de observação participante, listas livres, turnês-guiadas, diário de campo e aplicação de formulário estruturado. O uso das plantas foi classificado conforme descritores pré-estabelecidos. Constatou-se que os apicultores fazem uso de 68 espécies vegetais agrupadas em cinco descritores: alimentar, madeireiro, medicinal, combustível e forragem. A maioria das espécies (54) tem utilidade medicinal, com destaque para Anacardium occidentale L./ Cajueiro (0,45) e Astronium urundeuva (M.Allemão) Engl./ Aroeira (0,4) que apresentaram os maiores valores de uso (VU). A maioria dos apicultores (85%) acreditam que as temperaturas mais elevadas e escassez de chuvas estão associadas com a redução das áreas florestais no município. Conclui-se que os apicultores detêm importante conhecimento sobre os recursos naturais manejados, e devem ser valorizados para a implementação de ações de sustentabilidade da Caatinga no Alto-Oeste Potiguar.
Produção de mudas de paineira em substratos com rejeito da indústria de caulim
Authors: Do Carmo Alves Jailson , Lima Alves Pôrto Mônica , Alves de Arruda Jandeilson , Da Silva José Madson
Published: August 2021

A utilização do rejeito de caulim em substratos para produção de mudas pode ser uma alternativa viável para o aproveitamento deste material. O objetivo do trabalho foi avaliar a produção de mudas de paineira em substratos com diferentes proporções de rejeito de caulim. Foram avaliados os seguintes substratos: S1: 40% terra vegetal (TV) + 30% esterco bovino (EB) + 30% areia lavada (AL) + 0% rejeito de caulim (RC); S2: 40%TV+30%EB+0%AL+30%RC; S3: 40%TV+20%EB+0%AL+40%RC; S4: 40%TV+10%EB+0%AL+50%RC; S5: 30%TV+10%EB+0%AL+60%RC; S6: 20%TV+10%EB+0%AL+70%RC; e S7: 10%TV+10%EB+0%AL+80%RC. Aos 75 dias após a semeadura, foram avaliados estatisticamente: diâmetro do colo, altura, número de folhas, produção de matéria seca (raízes, parte área e total), relação da altura e diâmetro do colo, relação da matéria seca da parte área e da matéria seca das raízes e o Índice de Qualidade de Dickson. Os substratos S1 e S2 foram responsáveis por resultados estatisticamente superiores para todas as características avaliadas das mudas de paineira. Os demais substratos resultaram em reduções significativas estatisticamente em todas as características das mudas, principalmente os substratos S6 e S7. Para produção de mudas de paineira, pode-se utilizar até 30% de rejeito de caulim no substrato sem efeitos negativos no crescimento e qualidade das mudas.
Efeito da solarização do solo no controle de ervas espontâneas em uma área de Caatinga na Paraíba, Brasil
Authors: Lins Cassimiro Carlos Alberto , Nóbrega Gomes Vanessa Gabrielle , Rabelo da Costa Batista Fabiane , Gomes de Lima Alysson , De Sales Oliveira Filho Francisco
Published: August 2021

A Caatinga é um bioma exclusivamente brasileiro, caracterizado por baixas precipitações e altas temperaturas durante o ano. Atividades antrópicas agrícolas e urbanas são os fatores principais de degradação desse bioma, favorecendo o surgimento de ervas espontâneas (daninhas), que se estabelecem com vigor após perturbações ecológicas. Dessa forma, o objetivo deste estudo foi avaliar o efeito da técnica de solarização do solo como medida mitigadora de ervas espontâneas em uma área de Caatinga, Paraíba, Brasil. O experimento foi realizado no Instituto Nacional do Semiárido (INSA), usando o delineamento experimental inteiramente casualizado, com quatro tratamentos e nove repetições: (solo autoclavado; solo solarizado; solo natural; solo solarizado + esterco bovino). Registramos a germinação de 67 plântulas de ervas espontâneas pertencentes a 13 epécies no tratamento de solo natural e 7 plântulas de 5 espécies no tratamento de solo solarizado + esterco bovino. Poaceae foi a família predominante, com cinco espécies. O tratamento com solarização apresentou supressão total da germinação, assim como o solo esterilizado por autoclavagem, no qual ocorreu a germinação de apenas uma espécie. A solarização por 45 dias, realizada sobre as condições edafoclimáticas de Campina Grande, Paraíba inibiu totalmente a emergência de ervas espontâneas no solo da Caatinga.
Gestão de Pessoas e Inovações Gerenciais: um Estudo Baseado em Cognições de Gestores
Authors: Mara Rosalia Ribeiro Silva  , Ana Paula Moreno Pinho
Published: August 2021

Objetivos do estudo: Analisar a percepção de gestores acerca da relação entre práticas de gestão de pessoas (GP) e a implementação de inovações gerenciais, a partir das cognições de gestores. Metodologia/abordagem: Com abordagem qualitativa, foram ouvidos 16 gestores por meio de entrevistas semiestruturadas, com auxílio da “técnica das fichas”. Foi realizada a análise de conteúdo. Principais resultados: As práticas de GP atuam como facilitadoras das inovações gerenciais implementadas pelos gestores. “Envolvimento de pessoas” e “treinamento, desenvolvimento e educação” foram práticas percebidas como as mais relevantes para a implementação de inovações gerenciais, e “recompensas” foi a menos relevante.  Contribuições acadêmicas: Este artigo contribui com o campo da GP estratégica, no sentido de que, quando a GP estabelece um planejamento de longo prazo alinhado aos objetivos organizacionais e implementa práticas específicas de gestão, isto colabora para com a geração e implementação de inovações gerenciais. As inovações gerenciais foram colocadas em evidência, buscando esclarecer a concepção dos gestores e obtendo principais exemplos de práticas e processos inovadores executados por eles. Destaca-se a contribuição metodológica com o uso da “técnica das fichas”, enquanto alternativa para o campo dos estudos organizacionais na compreensão das cognições gerenciais. Contribuições práticas: Este estudo oferece à GP estratégica informações para que os gestores invistam em um planejamento estratégico com vistas a priorizar as práticas percebidas como mais relevantes para a implementação de inovações gerenciais, além de incrementar e remodelar aquelas percebidas como menos relevantes.

Palavras-chaves: Inovações gerenciais. Práticas de gestão de pessoas. Cognições gerenciais.
Efficacy, effectiveness, and safety of integrase inhibitors in the treatment of HIV/AIDS in patients with tuberculosis: A systematic review and meta-analysis
Authors: Resende Natália , Pantuzza Lais , Carvalho Wânia , Miranda Silvana , Zuppo Isabella , Reis Adriano
Published: August 2021

Aims: To evaluate the efficacy, effectiveness, and safety of integrase
inhibitors in the treatment of HIV/AIDS in patients coinfected with
tuberculosis (TB). Methods: Clinical trials or observational studies
were included. The searches were performed in the MEDLINE, EMBASE,
LILACS, COCHRANE, Web of Science, Scopus, and CINAHL databases using the
terms “HIV”, “AIDS”, “tuberculosis”, “raltegravir potassium”,
“dolutegravir”, “elvitegravir”, “bictegravir”, “integrase
inhibitor”, and their respective synonyms. The methodological quality
of the studies was independently assessed using the Cochrane risk of
bias and Newcastle Ottawa scales. Results: Reports from three randomised
clinical trials and a historical cohort were included. Patients
coinfected with TB and HIV/AIDS showed a good response to TB treatment,
which was above 85% in all arms of the evaluated studies. As a primary
outcome, the HIV viral load suppression rates at week 48 were greater
than 60% in all arms. The therapies evaluated in patients coinfected
with TB and HIV/AIDS were also proven to be safe. However, there was no
statistically significant difference in the efficacy outcomes between
the efavirenz and integrase inhibitor arms, and regarding safety
outcomes, there were few events compared with the total. Furthermore,
the certainty of the evidence of the outcomes assessed was low,
indicating that future research is likely to have an important impact on
this estimate. Conclusion: Integrase inhibitors are effective and well
tolerated, being an alternative to efavirenz in clinical protocols.
However, more studies with high quality evidence are needed on the use
of this treatment in health systems.
A Reproduction of Torao Tago’s Diary of January-March 1942, with Bibliographical Notes
Authors: IZUMI Tsukasa
Published: August 2021

This paper is comprised of the reproduction of a three-month period of Torao Tago’s diary, which in total covers the six years from 1940 to 1945, and bibliographical notes on the text. Tago became famous after his play won second prize in a creative writing contest sponsored by the magazine “KAIZO” in 1931. The period of the diary covered in this paper is from January to March 1942. His diary shows that the war had little effect on the lives of the citizens of Tokyo.
Synthetic route towards 1,2,3,4-tetrahydroquinoxaline/piperidine combined tricyclic ring system
Authors: Krunic Mihajlo , Jevtic Ivana , Penjisevic Jelena , Kostic-Rajacic Sladjana
Published: August 2021

The synthetic route toward novel tricyclic, nitrogen-containing system is disclosed. Three novel compounds possessing structural features of 1,2,3,4-tetrahydroquinoxaline and decahydropyrido[3,4-b]pyrazine are synthesized starting from readily available precursors in six or seven steps, of which the last three or four steps respectively are diastereoselective. Key reaction steps include N-acylation, Hofmann rearrangement and ring-closing Buchwald? Hartwig reaction. Compounds trans-8, cis-12 and trans-12 are synthesized in order to prove that this novel, tricyclic system can be functionalized with various groups. Synthetic significance of this heterocyclic system lies in the possibility for the orthogonal functionalization of three different amino groups, allowing fine structural tuning.
Synthesis and characterization of Fe3O4/PEG-400/oxalic acid magnetic nanoparticles as a heterogeneous catalyst for the synthesis of pyrrolin-2-ones derivatives
Authors: Esmaeilzadeh Seyran , Setamdideh Davood
Published: August 2021

In this study, oxalic acid was successfully loaded onto Fe3O4/PEG-400 under ultrasonic irradiation and Fe3O4/PEG/oxalic acid as a new nanomagnetic catalyst was synthesized. The chemical structure of the catalyst was investigated by the FT-IR, XRD, EDX and SEM methods. The catalyst was used for the synthesis of 3-acyl-5-hydroxy-3-pyrrolin-2-one derivatives from the corresponding aldehydes, anilines and dimethyl acetylenedicarboxylate (DMAD) by a one-pot and three-component MCR reaction in the excellent yields (90?95 %) of products within 24 h at room temperature. Fourteen samples are available. The recovered catalyst could be satisfactorily used for a second and third run without regeneration. This method has a green and eco-friendly profile. In addition, this research introduces an improved mechanism for these types of reaction. The chemical structures of new compounds was characterized by their FT-IR, 1H-NMR, 13C- -NMR and mass spectra.
Deashing and desulfurization of subbituminous coal from the East field (Bogovina Basin, Serbia) - insights from chemical leaching
Authors: Pantovic-Spajic Katarina , Markovic Branislav , Pavlovic Miroslav , Sokic Miroslav , Zildzovic Snezana , Djordjevic Natasa , Stojanovic Ksenija
Published: August 2021

The study is focused on the determination of the most effective chemical leaching process for the simultaneous demineralization/deashing and desulfurization of subbituminous coal from the Bogovina Basin. Coal was treated for 30 min, at different temperatures, using variable concentrations of hydrochloric, nitric, acetic and citric acids; hydrogen peroxide, mixture of hydrogen peroxide and nitric acid (pH 2), as well as by the stepwise leaching process (nitric acid + mixture of hydrogen peroxide and nitric acid, pH 2). The changes in mineral composition, caused by the chemical leaching, are followed using X-ray diffraction, whereas alterations of coal organic matter are tracked by Fourier-transform infrared spectroscopy and the content of fixed carbon. Inorganic acid leaching, regardless of the temperature and acid concentration, enabled the successful deashing of coal, whereas the percent of desulfurization was insufficient. The organic acid leaching was not satisfactory for both, deashing and desulfurization. Leaching by H2O2 and H2O2/HNO3 mixture (pH 2) resulted in moderate desulfurization, but the ash reduction was low. The most suitable method for the simultaneous effective ash (78 wt.%) and the sulfur (66 wt. %) removal from Bogovina coal is the two-step leaching, combining 10 vol. % HNO3 and mixture of 35 vol. % H2O2/10 vol. % HNO3 of pH 2 at 60?C.
Cybersports sphere organization peculiarities in educational space of higher education institution in forming student sports competences
Authors: Khairullina Elmira R. , Solonin Mikhail A. , Ovchinnikov Oleg M. , Bogdanova Venera I. , Slepneva Elena V. , Shubovich Valery G.
Published: August 2021

The article reveals the modern understanding of the discursive content of the cybersport sphere and identifies its priorities in the educational space of the university.  It establishes the structure and content of eSports competences’ types determined by the students’ social roles in the cybersports sphere of higher education institution’s educational space.  Based on the results of the study, the authors justified an interactive model of cybersports sphere organization as a priority condition for the formation of eSports competences of students' socialization in the educational space of the university. The effectiveness of the model has been proven by the results of the implementation of the cybersport sphere in the educational space of the university.
Proses Eksklusi Sosial Kelompok Petani
Authors: Abhipraya Fairuz Arta , Purnomo Eko Priyo , Agustiyara Agustiyara
Published: August 2021

Artikel ini mencoba menjelaskan mengenai proses ekslusi sosial masyarakat petani di Kabupaten Sleman akibat dari fenomena urban sprawl yang terjadi di Daerah Istimewa Yogyakarta karena kemudahan akses sosial yang tersedia. Artikel ini menggunakan metode penelitian kualitatif dengan Teknik deskriptif analisis, instrument pengumpulan data diperoleh dari studi perpustakaan. Hasil penelitian ini mendorong pada kesimpulan bahwa masyarakat petani di Kabupaten Sleman mengelami proses eksklusi sosial akibat dampak dari perluasan daerah kota dan alih fungsi lahan dari lahan pertanian menuju lahan industri. Bentuk eksklusi sosial yang tercipta adalah dampak dari kehilangan mata pencaharian petani sebagai seorang petani dan kegagalan masyarakat tani dalam beradaptasi dengan perkembangan sektor industri yang menggantikan sektor pertanian.
Implementasi Kebijakan Pembatasan Sosial Bersekala Besar dalam Penanganan Corona Virus Disease 2019 (Covid-19) di Indonesia
Authors: Rahman Khairul
Published: August 2021

Hampir seluruh negara di dunia menghadapi permasalahan serius terkait Corona Virus Disease 2019 (COVID-19). Negara-negara yang terdampak COVID-19 telah melakukan berbagai kebijakan untuk mengatasi COVID-19 dan dampak yang ditimbulkan. Indonesia adalah negara dengan jumlah penduduk terbanyak (268,7 juta) di Asia Tenggara yang mengalami permasalahan COVID-19. Pemerintah Indoenesia dalam merespon COVID 19 telah mengeluarkan kebijakan strategis mengatasi penyebaran COVID-19, yakni Pembatasan Sosial Bersekala Besar (PSBB). PSBB yang dilakukan dalam bentuk pembatasan aktivitas luar rumah yang dilakukan oleh setiap orang yang berdomisili dan/atau berkegiatan. Namun fakta memperlihatkan kebijakan belum berjalan dengan efektif. Banyak unsur atau elemen yang tidak mematuhi kebijakan PSBB yang telah diterapkan oleh masing-masing pemerintah daerah di Indonesia, bakan menimbulkan persoalan baru dalam dinamika pemerintahan yang dijalankan. Penelitian ini menggunakan metode kualitatif dengan tujuan utama deskriptif dan mengungkap. Hasil penelitian mendapati ada beberapa indikator yang mempengaruhi keberhasilan implementasi kebijakan yakni: karakteristik dari masalah; karakteristik kebijakan; pelaksanaan kebijakan; hubungan antar organisasi; dan lingkungan kebijakan.
PENGARUH MODEL PEMBELAJARAN RECIPROCAL TEACHING TERHADAP PRESTASI BELAJAR DAN KEMAMPUAN BERFIKIR KREATIF MATEMATIKA
Authors: Alghufron Ibnu Rizal , Paridjo Paridjo , Rokhman Moh. Saefur
Published: August 2021

Penelitian ini bertujuan untuk mendeskripsikan : (1) prestasi belajar matematika yang diajarkan menggunakan model pembelajaran Reciprocal Teaching lebih baik daripada yang diajarkan menggunakan model pembelajaran ekspositori, (2) kemampuan berfikir kreatif matematika yang diajarkan menggunakan model pembelajaran Reciprocal Teaching lebih baik daripada yang diajarkan menggunakan model pembelajaran ekspositori, (3) ada perbedaan prestasi belajar dan kemampuan berfikir kreatif matematika yang diajarkan menggunakan model pembelajaran Reciprocal Teaching dengan yang diajarkan menggunakan model pembelajaran ekspositori (4) ada pengarauh model pembelajaran Reciprocal Teaching terhadap prestasi belajar dan kemampuan berfikir kreatif matematika. Populasi dalam  penelitian ini adalah peserta didik kelas VIII semester II SMP Negeri 1 Kedungbanteng Tahun Pelajaran 2016/2017. Pengambilan sampel menggunakan teknik cluster random sampling. Sampel yang diambil sebanyak 5 kelas yaitu dua kelas sebagai kelas eksperimen, dua kelas sebagai kelas kontrol, dan satu kelas sebagai kelas uji coba. Teknik pengumpulan data yang digunakan adalah dokumentasi dan tes. Instrumen penelitian berupa tes yang telah teruji validitas dan reliabilitas pada taraf signifikansi 5%. Analisis data menggunakan uji t satu pihak kanan, manova, dan Uji -Hotelling. Hasil penelitian menunjukan bahwa : (1) prestasi belajar peserta didik yang diajar menggunakan model pembelajaran Reciprocal Teaching lebih baik daripada peserta didik yang diajarkan menggunakan model pembelajaran ekspositori, (2) kemampuan berfikir kreatif matematika peserta didik yang diajar menggunakan model pembelajaran Reciprocal Teaching lebih baik daripada peserta didik yang diajarkan menggunakan model pembelajaran ekspositori, (3) ada perbedaan prestasi belajar dan kemampuan berfikir kreatif matematika peserta didik yang diajar menggunakan model pembelajaan Reciprocal Teaching dengan yang diajarkan menggunakan model pembelajaran ekspositori, (4) ada pengaruh model pembelajaran Reciprocal Teaching terhadap prestasi belajar dan kemampuan berfikir kreatif matematika peserta didik kelas VIII semester II SMP Negeri 1 Kedungbanteng tahun pelajaran 2016/2017