bluuebunny/crossref_metadata_2025 huggingface dataset:
Integration of Practical Work into Teaching and Learning of Physics at the Senior High School Level
Authors: Asamoah Donusem Yao , Aboagye Godwin Kwame
Published: October 2021

Practical work forms an integral part of teaching and learning as enshrined in the teaching physics syllabus designed for senior high schools in Ghana. This presupposes that the final grade of students is influenced by their performance in physics practical work. Hence, practical work in physics needs to be utilised to improve students’ performance. This study, therefore, sought to examine how practical work is integrated into the teaching and learning of physics at the senior high school level in the Volta Region of Ghana. In all, 16 physics teachers and 212 science students randomly sampled took part in the study. It was found that though teachers accept practical work as an essential ingredient for students’ understanding of concepts, they are not up-to-date on how practical work should be integrated into the teaching and learning of physics as prescribed by the syllabus for physics. Also, the teaching of practical work is done via group work, hands-on activity, interactive demonstrations, discussion and lecture. It is recommended that teachers should adopt integrating practical work into lessons instead of separating them from theory.
ON THE ISSUE OF THE USE OF WATERJET TREATMENT IN MODERN MECHANICAL ENGINEERING
Authors: Bazenov Gabit Maksutovich
Published: October 2021

The article deals with the application of waterjet abrasive processing (cutting) in mechanical engineering. The data on the application areas, advantages, disadvantages and technological capabilities, as well as the world leaders in the production of waterjet cutting machines with technological characteristics are presented. In waterjet processing, the process is most influenced by the technological parameters: the speed of the jet, the grain size of the abrasive, the angle of inclination of the jet, the distance from the nozzle to the surface to be treated. Thus, the use of waterjet processing ensures minimal heat generation and accurate cutting of materials, the equipment is completely versatile and economical compared to plasma processing of the material reaching a cutting speed of 30,000 mm / min without affecting the quality of the cut, as well as the absence of surface heating, the likelihood of sparks make the use of water-abrasive machines as convenient and safe as possible.
Особенности технологии биоокисления сульфидных упорных руд месторождения «Суздальское»
Authors: Болатулы Ануар , Богомолов Алексей Витальевич
Published: October 2021

Представлено обоснование технологии биоооксиления для переработки сульфидных упорных руд на примере концентрата золотой руды месторождения «Суздальское». Процесс биовыщелачивания является оптимальным как с технологической, так и с экономической точки зрения, и в настоящее время становится основной технологией, применяемой для переработки упорных золотосодержащих руд. Сульфидная упорная руда в ходе экспериментальной обработки на производственной площадке золотоизвлекательной фабрики Суздальского месторождения была подвергнута предварительным технологическим операциям. Золотой концентрат подавали в состав бактериального выщелачивания в виде суспензии. Для окисления использовали биодеградационные бактерии Thiobacillus ferrooxidations и Leptospirillum ferrooxidations. Технология основана на окислении ацидофильных сульфидных минеральных групп хемолитотрофных микроорганизмов, способных использовать сульфиды, серу и ее восстановленные соединения в качестве субстрата для жизни. Процесс бактериального окисления протекал в биореакторе, где бактерии путем окисления сульфидных мышьяковистых руд разрушают кристаллическую решетку сульфидов и вскрывают пирит или арсенопирит, обеспечивая реагентам доступ к вкраплениям тонкодисперсного золота. В результате была достигнута высокая степень извлечения металла. Установлены основные параметры технологии биологического окисления для данных концентратов сульфидных упорных руд: температура среды 38–40 °С, уровень рН =1,4–1,6, концентрация растворенного кислорода в реакторе от 2 до 4 г/т.
Nanoparticles: a breakthrough in COVID-19 prevention, diagnosis and treatment
Authors: Skwarek Aleksandra , Gąsecka Aleksandra , Jaguszewski Miłosz J. , Szarpak Łukasz , Dzieciątkowski Tomasz , Filipiak Krzysztof J.
Published: October 2021

Coronavirus disease 2019 (COVID-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), declared a global pandemic by the World Health Organization (WHO). The three key principles in management of the COVID-19 pandemic are prevention, early detection and targeted treatment. Vaccine-based prevention together with early detection has already proven its efficacy in controlling the pandemic. Early detection of infected patients could substantially accelerate the implementation of treatment, but also help to identify infection hotspots, whereas targeted treatment might destroy the virus and minimize damage to healthy tissue. Nanoparticles hold great promise with respect to these aspects. They may also be the solution to emerging clinical problems such as reinfection, pregnancy-related COVID-19 and coinfection. Here, we aim to discuss the potential applications of nanoparticles to combat the COVID-19 pandemic.
Calendula officinalis green-mediated silver nanoparticles: Formulation, characterization and assessment of colorectal cancer activities green-mediated silver nanoparticles.
Authors: Xu Yongchao , Mahdavi Behnam , Zangeneh Mohammad , Zangeneh Akram , Qorbani Maryam , Paydarfard Sogand
Published: October 2021

Introduction

The biosynthesis of metal nanoparticles using medicinal plants is not only economical but also environmentally friendly as well as having miscellaneous biomedical applications. In the present study, silver nanoparticles were green-synthesized using the aqueous extract of Calendula officinalis.

Material and methods

The synthesized AgNPs@Calendula officinalis were characterized by analytical techniques including EDX, FE-SEM, XRD, UV-Vis., and FT-IR. The anti-human colorectal cancer activities of AgNPs@Calendula officinalis were evaluated using MTT assay.

Results

The nanoparticles were formed in a spherical shape in the range of 38.05 to 75.41 nm for the particle size. On the other hand, the MTT assay was run to evaluate anti colorectal cancer activity of AgNPs@Calendula officinalis. In the cellular and molecular part of the recent study, the treated cells with AgNPs@Calendula officinalis were assessed by MTT assay for 48 h about the cytotoxicity and anti-human colorectal carcinoma properties on normal (HUVEC) and colorectal carcinoma cell lines i.e. WiDr, SW1417 [SW-1417], and DLD-1. In the antioxidant test, the IC50 of AgNPs@Calendula officinalis and BHT against DPPH free radicals were 222 and 124 µg/mL, respectively. The viability of malignant colorectal cell line reduced dose-dependently in the presence of AgNPs@Calendula officinalis. The IC50 of AgNPs@Calendula officinalis were 430, 326, and 392 µg/mL against WiDr, SW1417 [SW-1417], and DLD-1 cell lines, respectively.

Conclusions

After the clinical study, silver nanoparticles containing Calendula officinalis leaf aqueous extract may be used to formulate a new chemotherapeutic drug or supplement to treat the several types of human colorectal carcinoma.
Bibliometric analysis of productivity and keyword trends of articles on physical therapy and aging (1990-2014)
Authors: Arnal-Gómez Anna , Navarro-Molina Carolina , V. Espí-López Gemma
Published: October 2021

Introduction

The increase in population longevity has led the subject of ageing to take an important role in research and innovation policies. Considerable efforts have been made worldwide to promote research on physiotherapy and ageing. Therefore, applying bibliometric measures can be useful to identify emerging and innovative scientific indicators. This study identifies productivity and topic trends in physiotherapy in ageing and the main publishing authors, institutions, and countries.

Methods

A bibliometric analysis was applied in original articles published on the Science Citation Index Expanded of Web of Science Core Collection (1990–2014). Bibliometric indicators were obtained by using specific bibliometric software. Pearsons’ correlation coefficient (r) was applied for correlations; statistical significance was considered for p < 0.01.

Results

Overall, 2237 original articles were included. Topic trends show an initial focus on illness and evolve towards the study of prevention. Authors and institutions increased productivity and citation. The most productive country was the United States, and there was a significant correlation between productivity and gross domestic product (p < 0.01). No statistically significant relationship was observed between productivity and the countries’ aged population.

Conclusions

Productivity increased, with a greater scientific interest in prevention. The published research was mainly related to wealthy and developed countries.
The effect of exercising under particulate matter 2.5 conditions on forced vital capacity and blood lead levels
Authors: Bahri Samsul , Resmana Dadan , Tomo Haryo Satrio , Apriantono Tommy
Published: October 2021

Introduction

The increase of air pollution in Indonesian big cities has resulted in serious health problems of their inhabitants. Doing physical exercises in such conditions may affect health quality. This study aims to investigate the effects of physical exercises at public sports facilities exposed to particulate matter 2.5 (PM2.5) on forced vital capacity (FVC) and blood lead levels among visitors of public sports centres in Bandung.

Methods

A pretest-posttest randomized-group design was applied. Overall, 30 people who visited public sports facilities were selected to participate on the basis of the inclusion criteria. The subjects were divided into 2 equal groups, the control and the experimental group. The experimental group performed physical exercises for an hour 3 times a week for 6 weeks under high PM2.5 conditions. Meanwhile, the control group did not perform any physical exercise. The participants underwent anthropometric measurements at baseline, as well as spirometry (FVC) and blood lead tests before and after the intervention. PM2.5 levels were also evaluated.

Results

There was a significant increase (p < 0.001) in FVC and blood lead levels in the experimental group after 6 weeks of exercising in the evening at public sports facilities which were highly exposed to PM2.5.

Conclusions

Six weeks of routine and regular physical exercises at public sports facilities highly exposed to PM2.5 increased blood lead levels, with no negative effect to body function in accordance with standard lead level values by the local health department.
Effect of hatha yoga intervention on cardiovascular system in women after breast cancer surgery
Authors: Odynets Tetiana , Briskin Yuriy , Dolinsky Borys , Osipova Iryna , Pasichna Tetiana , Yefremova Anzhelika
Published: October 2021

Introduction

The aim of this study was to investigate and compare the effects of 2 different exercise regimens on cardiovascular fitness in women with breast cancer.

Methods

A total of 110 women consented to take part in the study but only 102 met the inclusion criteria and were involved (8 patients did not meet the research criteria and were excluded); 95 women completed the interventions and were included in the final analysis. The patients’ mean age was 57.53 ± 1.92 years for group A and 58.00 ± 1.27 years for group B. The participants were randomly assigned to 2 groups. Group A (n = 48) received hatha yoga intervention and group B (n = 47) received Pilates intervention for 3 months. Impedance cardiography was used to measure pre- and post-intervention functional capacity of the cardiovascular system.

Results

Post-intervention impact was observed for both intervention approaches, but better improvement was noted in the group of hatha yoga than that of Pilates. The actual values of stroke volume and left ventricular power were significantly higher in group A compared with group B by 6.05 ml/beat (p < 0.05) and 0.19 W (p < 0.05), respectively; the relative values were correspondingly better by 6.22% (p < 0.05) and 10.71% (p < 0.05).

Conclusions

Hatha yoga and Pilates interventions are both effective in improving cardiovascular function, but hatha yoga turns out more beneficial.
Effect on dynamic postural stability after cold therapy application
to the knee joint: a pilot randomized controlled trial
Authors: Debnath Sudip , John Samuel Asir
Published: October 2021

Introduction

In addition to the merits of cold therapy in the management of soft tissue injuries, it decreases dynamic stability. Controversies exist regarding this statement. Thus, the aim of the study was to find the effect on postural stability after the application of cold therapy to knee joint.

Methods

Overall, 24 individuals aged 18–25 years participated in this pilot study. They were randomly divided into 2 groups, experimental and control group. Each participant in the experimental group was asked to perform the Star Excursion Balance Test (SEBT) under 2 conditions, before and after the application of cold therapy. The subjects received ice pack wrapping of the knee for 10 minutes. The control group performed SEBT at room temperature with an interval of 10 minutes. The 2 groups were analysed and compared.

Results

The demographic characteristics of the participants recruited were as follows: age: 21 (20.2–21.9) years, height: 166.3 (162.9–169.7) cm, weight: 61.2 (56.7–65.7) kg, and BMI: 22.06 (20.7–23.4) kg/cm2. There was no significant difference (p ≥ 0.05) between SEBT scores between the experimental group and the control group.

Conclusions

Cold therapy did not have any influence on dynamic postural stability among college students if applied over the knee joint for 10 minutes.
Investigating the effects of head posture muscles’ viscoelastic parameters
on pulmonary and functional capacity in healthy individuals
Authors: Maden Cagtay , Turhan Begumhan , Maden Tuba , Bayramlar Kezban
Published: October 2021

Introduction

Forward head posture (FHP) is known to have a large influence on respiratory function by weakening the respiratory muscles. This cross-sectional study is designed to examine the relationship between the tonus, stiffness, and elasticity of head posture muscles and pulmonary capacity.

Methods

Overall, 16 FHP and 17 non-forward head posture (NFHP) individuals were evaluated. The tonus, stiffness, and elasticity of the upper trapezius, semispinalis capitis, pectoral muscles, and sternocleidomastoid muscles were measured with a MyotonPRO® device. Functional capacity was assessed with the 6-minute walk test. Pulmonary function tests employed a spirometer. The Neck Disability Index was applied. FHP was determined by measuring the craniovertebral angle. Physical activity levels were evaluated with the Physical Activity Index.

Results

The study involved 18 (54.54%) female and 15 (45.45%) male students. Their mean age was 21.24 ± 1.82 years. Neck Disability Index scores were higher in participants with FHP than in NFHP individuals (p = 0.037). There were no significant differences in the myotonometric measurements of the analysed muscles between FHP and NFHP groups (p > 0.05). Physiological characteristics of FHP and NFHP participants were different in terms of vital capacity, forced vital capacity, forced expiratory volume in 1 second, and peak forced expiratory volume (p < 0.05).

Conclusions

Owing to the pulmonary capacity differences between FHP and NFHP individuals, it can be concluded that FHP affects pulmonary capacity. Also, pectoral muscles and semispinalis capitis muscles play an important role in thoracic expansion and therefore influence vital capacity.
MONITORAMENTO SUBAQUÁTICO DA BIODIVERSIDADE MARINHA
Authors: Nunes Luciana Fortuna , Ninow Ágatha Naiara , Sosa Juan Pablo Carnevale
Published: October 2021

Introdução: A fotoidentificação subaquática de tartarugas marinhas é uma metodologia de coleta de informações sem necessidade da captura manual dos animais, pois é possível identificar cada indivíduos através das fotos das marcas naturais da cabeça. Objetivos: Coletar informações para verificar a existência de filopatria em sítios de alimentação. Material e Métodos: No período de julho/2020 a junho/2021, foram realizados 77 monitoramentos subaquáticos, através de mergulho livre e fotografia subaquática, em 07 locais de Bombinhas/SC. Durante a pesca da tainha (01/maio a 30/julho), se restringem atividades aquáticas e isto resulta no acompanhamento da atividade de pesca através dos monitoramentos não subaquáticos. Resultados: Durante um ano de monitoramento foram avistadas três espécies de tartarugas marinhas na região, Chelonia mydas, Caretta caretta e Eretmochelys imbricata. Nas áreas de monitoramento subaquático foram catalogados 11 novos indivíduos e identificado o reavistamento de 38 (C. mydas: 37 e E. imbricata: 1), considerando diferentes épocas do ano e saídas de campo. Os monitoramentos não subaquáticos foram quantificados pelo número de acompanhamento da pesca. Foram monitoradas 05 praias do município, totalizando 23 monitoramentos não subaquáticos. Durante esta atividade, foram registrados 29 novos indivíduos e 03 recapturas de tartarugas marinhas. Os óbitos registrados foram através da ciência cidadã, foram encontradas e fotografadas 14 tartarugas marinhas mortas em 07 praias diferentes do município. Durante os mergulhos, também foram observados itens de atividades antrópicas no fundo do mar. Conclusão: O monitoramento de tartarugas marinhas através de fotografia subaquática é eficiente, pois gerou dados de captura e recaptura sem necessidade de submeter os indivíduos a atividades estressantes, como a captura física. A contribuição da ciência cidadã à pesquisa se mostrou promissora, visto que parte dos resultados alcançados de reavistamentos se deu devido a esta participação. Foi observado que na Pesca da Tainha de Canoa De Um Pau Só há interação com tartarugas marinhas e nenhum registro de óbito causado por esta arte de pesca foi registrado. A permanência de alguns indivíduos de tartarugas marinhas em Bombinhas foi verificada, tanto pelos monitoramentos subaquáticos, quanto pelos não-subaquáticos, mas o tempo de permanência e número de reavistamentos variaram entre os indivíduos com filopatria.
PESQUISAS ELEITORAIS: UMA DISCUSSÃO DE CENÁRIOS AMOSTRAIS CONSTRUÍDOS A PARTIR DAS DISTRIBUIÇÕES DICOTÔMICAS E POLITÔMICAS
Authors: De Paula Julio Cesar Guimarães
Published: October 2021

O presente trabalho tem por objetivo discutir o desenho amostral utilizado nas pesquisas eleitorais no Brasil. Do ponto de vista da teoria estatí­stica, todo desenho amostral se constrói a partir de uma distribuição de probabilidade. Assim, a estimação de variáveis categóricas se relaciona a dois tipos de distribuição de probabilidade: a dicotômica e a politômica. A primeira ambienta-se em duas categorias (distribuição binomial), já a segunda, em três ou mais. O trabalho mostra que o uso da distribuição binomial pelos institutos diminui a magnitude amostral com impactos nos erros e nos intervalos de confiança. Assim, se propõe o uso da distribuição multinomial indexada as correções de Bonferroni pela elevar as qualidades das estimativas eleitorais no Brasil.
PERCEPÇÕES SOCIAIS SOBRE A CÂMARA LEGISLATIVA DO DISTRITO FEDERAL: IMAGEM PÚBLICA, CONFIANÇA POLÍTICA E PODER LOCAL
Authors: Barros Antonio Teixeira , Bittencourt Fernando Moutinho Ramalho , Veroneze Guilherme Marques
Published: October 2021

O artigo apresenta um estudo exploratório com base nas percepções sociais sobre a Câmara Legislativa do Distrito Federal (CLDF), no que se refere aos seguintes aspectos: confiança polí­tica, imagem pública, interesse do cidadão por polí­tica e poder local. O estudo tem como base dados coletados por meio de um websurvey aplicado em 2018 com 572 cidadãos residentes no DF. As principais conclusões revelam que a percepção dos informantes é muito negativa em relação aos três aspectos analisados. A imagem pública é considerada ruim e péssima (89,16%). O ní­vel de confiança polí­tica é baixo e muito baixo (94,06%). O interesse pela polí­tica distrital também é baixo e muito baixo (83,22%).
CÂMARAS MUNICIPAIS E DISPUTAS POR CARGOS NA PRIMEIRA REPÚBLICA
Authors: Florentino Guilherme Farias
Published: October 2021

Este artigo analisa as disputas judiciais por cargos nas Câmaras Municipais, ocorridas durante a Primeira República, à luz das decisões proferidas pelo Supremo Tribunal Federal (STF). A pesquisa adota metodologia jurí­dico-exploratória, com enfoque no estudo jurisprudencial. Pretende-se, especialmente, determinar quais as diretrizes traçadas pela Corte no perí­odo para lidar, através de habeas corpus, com os imbróglios decorrentes das apurações de eleitos e verificações de poderes, bem como os casos de dualidades de Câmaras. Da leitura dos precedentes, percebe-se que, embora a atuação do STF tenha sido, marcadamente, casuí­stica, o Tribunal desenvolveu critérios especí­ficos, e, ao final, restritivos, para a apreciação do mérito das ações nesse contexto.
TODOS PELA POPULARIDADE: COMO O APOIO DO PRESIDENTE É CAPAZ DE AFETAR O POSICIONAMENTO DOS PARLAMENTARES BRASILEIROS
Authors: Renno Lucio Remuzat , Soares Andeliton
Published: October 2021

A pandemia do novo coronaví­rus estabelece forte choque exógeno. Os prejuí­zos são esperados e já observados, e a esquiva de culpabilidade e reivindicação de crédito são elementos importante do jogo polí­tico como um todo e da questão da pandemia em particular. O presente artigo tem como propósito analisar descritivamente os posicionamentos dos parlamentares nas duas casas legislativas brasileiras, segundo a ideologia e a proximidade ao Governo, a respeito do isolamento social e das medidas tomadas pelo Presidente. Os resultados apontam para o fato de que a retomada da popularidade Presidencial acompanha maior apoio ao Presidente por partidos de Centro e de Direita. A Esquerda, por sua vez, possui posicionamento consistente ao enfrentamento ao Executivo Federal.
ENTREVISTA SABINO JOSÉ FORTES FLEURY
Authors: Anastasia Fatima , Almeida Helga , Santana Luciana
Published: October 2021

Entrevista para o dossiê AÇÕES LEGISLATIVAS E ENFRENTAMENTO À PANDEMIA DE COVID-19
Technical and economic efficiency of using an energy-saving LED electro-optical converter ESEP for monitoring insect pests
Authors: Surinsky Dmitry , Marandin Alexander
Published: October 2021

The economic efficiency of using the ESEB was determined on the basis of the conducted studies of the developed installation in the field. The studies were conducted between May and September 2019 and 2020. The loss of a grown crop depends on many circumstances. The general reasons for the loss of agricultural products could be attributed to the inconsistency of technology and machines with zonal conditions, low quality of equipment, non-compliance with technological regulations and conditions of its operation. The transition to new forms of ownership in the production process also determines other causes of product losses - insect pests. Regardless of which pest is concerned, infestation can significantly affect yield potential if crop density is not optimal (less than 79-158 plants per m2). Obviously, the lower the density of crops, the more thoroughly you need to deal with even the minimum number of pests. Reducing only the loss of agricultural products would significantly reduce its cost. Loss of products during storage - 10 ... 15%. The fluctuations are due to the level of technology, climate, personnel training. In Russia - losses reach 20%, and half of them are pests. When infected with insects and mites, the nutritional value of the product sharply deteriorates. Deterioration in the quality of products contaminated with pests is irreversible. Keywords: ECONOMIC EFFICIENCY, ELECTRO-OPTICAL CONVERTER, MONITORING, INSECT PESTS, METHOD, PRODUCTS, CONDITIONS, LIGHT TRAP, CONDITIONS
PENGARUH VARIASI MEDIA DAN JUMLAH TUMBUHAN TYPHA LATIFOLIA TERHADAP PENURUNAN KADAR BOD DAN COD PADA LIMBAH CAIR INDUSTRI TAHU DI SIDOARJO
Authors: Oktavia Lily , Taufiq Mohammad , Tamyiz Muchammad
Published: October 2021

Sidoarjo Regency is one of the supporting districts of East Java province. Sidoarjo Regency is experiencing rapid progress because of the development and potential in trade and industry. One of the industries often found in Sidoarjo Regency is tofu factory. The rapid number of tofu craftsmen industry has caused an increase in the volume of liquid waste which also flows into water bodies. The purpose of this study was to determine the reduction in BOD and COD levels for the tofu factory wastewater treatment in the Sepande area, Sidoarjo Regency using a contructed wetland with Typha latifolia as the remediator. The research stage will be carried out using a laboratory scale using acclimatization as the adaptation stage of Typha latifolia and a crontructed wetland reactor as phytoremediation processing. Based on the results and discussion, it can be concluded that there was a decrease in BOD and COD levels in the tofu industrial wastewater in Sidoarjo using the Constructed Wetland system. The percentage reduction in BOD content was greatest in soil media with 3 stems of Typha latifolia plants and a detention time of 4 days of 72%. While the largest percentage reduction in COD levels was in soil media with 2 stems of Typha latifolia plants and 4 days of detention time of 84%.
KECEMASAN IBU HAMIL TENTANG PELAYANAN ANTENATAL CARE DI ERA PANDEMI COVID-19
Authors: Sianipar Kandace , Aritonang Juneris , Siregar Wilda Wahyuni
Published: October 2021

The provision of maternal services during the pandemic needs to be a concern to avoid an increase in maternal morbidity and mortality, especially at this time there are restrictions on maternal health services in the form of anxiety during pregnancy during the Covid19 pandemic. The type of research used in this study is descriptive which aims to determine the anxiety of pregnant women about ante natal care services in the era of the Covid-19 pandemic at the Bandar Khalipah Health Center in 2020. The population in this study were all pregnant women who did ANC checks in the Bandar Khalipah Health Center area. The sampling technique used in this study was accidental sampling (sampling when the study was conducted) totaled 34 people. The results of the study found that the majority of respondents had mild anxiety (44%) about Ante Natal Care services in the Covid-19 pandemic era. From the results of this study, pregnant women should seek correct information about safe pregnancy during the Covid-19 pandemic so that they can change the anxiety of pregnant women about Ante Natal Care services in the Covid-19 pandemic era assisted by health workers in health education activities.
EFEKTIFITAS PEMIJATAN PADA BAYI TERHADAP PENINGKATAN BERAT BADAN BAYI USIA 3- 5 BULAN DI WILAYAH KERJA PUSKESMAS TAPIAN DOLOK KABUPATEN SIMALUNGUN
Authors: Bangun Parmiana , Sinaga Renny
Published: October 2021

Development of a person is at the age of 0-12 months. It is said to be the golden age because infancy is very short and cannot be repeated. One form of stimulation that has been carried out by the community is baby massage. Baby massage is a tactile stimulation that canstimulate muscles, bones and organ systems to function optimally. Methods This research uses a quasi-experimental design with a pretest-posttest control group design approach. The pretest was conducted in the intervention group and the control group regarding the baby's weight gain before massage. Posttest will be conducted in both groups after the intervention is given. Results: The results of the normality test of the data with the Shapiro-Wilk test in the experimental group from each measurement and the increase showed that they were not normally distributed (p<0.05); while the control group whose data were normally distributed were on the 2nd Week, 3rd Week, and 4th Week measurements, while the others were not normally distributed. For comparison of the baby's weight from each measurement because the treatment group was not normally distributed, the statistical test used was a non-parametric test with the Mann-Whitney test. Conclusions The weight gain of infants aged 3 to 5 months in the intervention group who received massage was greater than in the control group who did not receive massage.
Pengembangan Tes Berpikir Kreatif terhadap Hasil Belajar Akuntansi Siswa SMA Darussalam Medan
Authors: Wahyuni Dewi , Amalia Mekar Meilisa
Published: October 2021

The purpose of this study was to determine the effectiveness of the accounting creative thinking test on the learning outcomes of SMA Darussalam, to determine the sensitivity of the accounting creative thinking test to the learning outcomes of SMA Darussalam and to determine the students' responses to the accounting creative thinking test on the learning outcomes of SMA Darussalam. This research is a research on the development of Sugiono's modification through four stages, namely, test design, validation, limited trials and extensive trials. The instruments used in this study were creative thinking tests, validation sheets and student response questionnaires. The instrument was declared to have met the quality of the test. Testing the quality of the test for creative thinking in accounting by looking at the results of the validity, the distinguishing power of the questions, the difficulty level of the questions and the reliability of the questions. Based on the results of the calculation, it was found that the developed creative thinking test was less effective, because the average value of students' creative thinking skills had not yet reached a value of 60. The sensitivity of the creative thinking test was sensitive to student accounting learning outcomes with an average of 0.434. Student response to the creative thinking test developed was negative which was below 80%, which was 71.85%. So it can be concluded that the sensitivity of the accounting creative thinking test and the time it takes to complete the creative thinking test is effective and usable. However, in the creative thinking test category this is not effective because to answer the test requires a sufficiently deep skill, and this has not been mastered by the students.
Pengaruh Price Earning Ratio, Debt To Equity Ratio dan Return On Asset terhadap Harga Saham pada Perusahaan Manufaktur yang Terdaftar di Bei
Authors: Wongsosudono Corinna , Karo Mira Br
Published: October 2021

This study aims to analyze the effect of  Price Earning Ratio, Debt to Equity Ratio and Return On Asset on Stock Price in manufacturing companies listed in BEI. The variables tested in this study are independent variabels consisting of Price Earning Ratio, Debt to Equity Ratio and Return On Asset and dependent variable is the Stock Price. The population in this study is the food and beverage sub-sector manufacturing companies that registered in BEI 2016-2018, as many as 19 companies. The number of samples in this study are 10 companies, the data used in this study are secondary data obtained from the site www.idx.co.id and sample selection using purposive sampling method. The data analysis technique used is multiple linear regression of a significance level of 5%. The conclusion of this study is that the Price Earning Ratio, and Debt to Equity Ratio do not have a partial effect on Stock Price, while  Return On Asset have a partial effect on Stock Price. Based on simultaneous tests show that the Price Earning Ratio, Debt to Equity Ratio and Return On Asset affect the Stock Price.
Agenesia pulmonar como hallazgo infrecuente en adultos: reporte de caso.
Authors: Gradis Santos Olman Daniel , Degrandes Rodríguez Bayron Josué , Aguilera Tercero Lucy Gabriela , Gutiérrez Villanueva Semma Julissa
Published: October 2021

La agenesia pulmonar es una malformación infrecuente que se caracteriza por la ausencia de uno o ambos parénquimas pulmonares, estructuras bronquiales y vasculares. Posee una incidencia de un caso por cada 10 000 a 15 000 nacidos vivos. Generalmente, el diagnóstico es realizado durante la niñez, aunque puede llegar a presentarse asintomático hasta la edad adulta, lo cual su diagnóstico resulta un hallazgo incidental durante exámenes de rutina. Habiendo pocos casos descritos. Reportamos el caso de una paciente femenina 40 años de edad, quien fue referida al servicio de emergencia de nuestro “Hospital del Tórax” por presentar dolor torácico, disnea de medianos esfuerzos y fiebre de un mes de evolución.
PRODUÇÃO E COMÉRCIO DE LUCERNAS DURANTE A ANTIGUIDADE TARDIA: GÉNESE E EVOLUÇÃO DAS LUCERNAS TARDO-ANTIGAS DE PRODUÇÃO AFRICANA
Authors: Pereira Carlos
Published: October 2021

Conquanto esta série de lucernas não tenha merecido a mesma atenção que as suas precedentes, das séries de volutas ou de disco, é possível esboçar um quadro geral sobre a sua importação, produção e comercialização na Península Ibérica, definindo-se áreas que denunciam distintos ritmos de consumo lycnhológico. Alertamos, contudo, que o desatender destes materiais, estando muitos conjuntos por publicar, pode vir, no futuro, a alterar estas leituras. Estimulados por um trabalho anterior (Pereira, 2014a), do qual este é um complemento, decidimos não ficar por uma mera análise da distribuição ou morfologia das lucernas. Abordando sucintamente questões de complexa natureza, procurámos interrelacionar acontecimentos sociais e económicos com as transformações morfo-iconográficas que ostentam as lucernas tardo-antigas de produção africana. A complexidade destas temáticas, porém, não se esgota nestas páginas.
O PAPEL DA MULHER NA ARQUEOLOGIA PORTUGUESA
Authors: Bugalhão Jacinta
Published: October 2021

Em 2015, a profissão de “arqueólogo” é um exemplo de paridade. De facto, após a primeira direcção de trabalhos arqueológicos em 1950 e uma presença residual até aos anos 60 do século XX, as mulheres foram progressivamente ocupando o seu lugar na prática arqueológica. Nos anos 70, constituíam cerca de 20% dos arqueólogos autorizados a dirigir trabalhos arqueol´ógicos; em 1990, cerca de 30%. Com o dealbar do século XXI, o grupo profissional torna-se consolidadamente paritário. Neste trabalho procura-se consolidar a abordagem histórica sobre este processo fortemente ligado à evolução recente da sociedade e cultura portuguesas, desde as primeiras pioneiras, até ao momento presente em que o género, aparentemente, deixou de ser uma questão no exercício da profissão.
MORENO MEGÍAS, V., 2016, LA INFLUENCIA PÚNICA EN LAS MESAS TURDETANAS: CERÁMICA DE TIPO KUASS EN EL BAJO VALLE DEL GUADALQUIVIR. SEVILLA: DIPUTACIÓN DE SEVILLA. 274 PP. COM FIGURAS [ISBN 978-84- 7798-383-5]
Authors: Sousa Elisa de
Published: October 2021

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A TERRA SIGILLATA DO CASTRO DE ROMARIZ (SANTA MARIA DA FEIRA, AVEIRO): DA ROMANIZAÇÃO AO ABANDONO DE UM POVOADO FORTIFICADO NO NOROESTE PENINSULAR
Authors: Vilarinho Gil
Published: October 2021

As intervenções arqueológicas decorridas no Castro de Romariz permitiram identificar um povoado da Idade do Ferro com uma diacronia que se estende do século V a.C. aos primeiros séculos da nossa era. Através do estudo do conjunto de terra sigillata inumado, pretende-se dar um contributo para a compreensão da última fase de ocupação do povoado, analisando os padrões de consumo mas também procurando estabelecer relações crono-estratigráficas que permitem compreender melhor a evolução do sítio ao longo do séc. I d.C., e o subsequente processo de romanização, até ao seu abandono, ocorrido no século II d.C.. Através da análise da distribuição espacial dos fragmentos foi possível atentar sobre a funcionalidade de várias estruturas que constituem a domus, a maior habitação até então escavada no castro.
Os núcleos megalíticos do Deserto e Barrocal das Freiras (Montemor-o-Novo, Alentejo médio) na construção das paisagens sagradas das antigas sociedades camponesas dos 4.º e 3.º milénios a.n.e.
Authors: Gonçalves Victor S. , Andrade Marco António
Published: October 2021

No âmbito do projecto OMEGA, encontram-se em estudo os núcleos megalíticos das Herdades do Deserto e Barrocal das Freiras, correspondendo ao agrupamento de vários monumentos, maioritariamente sepulcros ditos «proto-megalíticos», com utilizações muito provavelmente centradas em meados do 4.º milénio a.n.e., ou mesmo um pouco anteriores. Monumentos evoluídos, de média ou grande dimensão, de Câmara e Corredor bem diferenciados, de finais do 4.º e primeiro quartel do 3.º milénio a.n.e., encontram-se em áreas periféricas ao núcleo central. Tal permite considerar uma evolução centro-periferia na construção deste espaço, com os monumentos mais antigos localizados na área central e os monumentos mais recentes localizados no seu entorno imediato. O estudo do conjunto do Deserto e Barrocal das Freiras, aliando as características arquitectónicas dos monumentos às particularidades dos depósitos votivos, permite seriar os patamares crono-culturais de construção e utilização de estes monumentos, definindo os diagramas de construção dos espaços sagrados e das paisagens megalíticas durante os 4.º e 3.º milénios a.n.e. na área do Alentejo médio.
Nuevos datos para el conocimiento del suburbium del Municipum Florentinum Iliberritanum (Granada): las recientes intervenciones en el solar de Mondragones
Authors: Rodríguez Aguilera Ángel , Bustamante-Álvarez Macarena , Rodríguez Aguilera Julia , Jódar Hódar Carmen , García-Consuegra Flores José M.
Published: October 2021

Se presenta el estudio de un solar recientemente excavado en el suburbium de la antigua Florentia Iliberritana en las postrimerías del río Beiro. Su amplia diacronía, que se extiende desde el siglo I d.C. hasta la actualidad, ayuda a trazar el discurso histórico de una aglomeración cuya entidad vamos a analizar en este trabajo. Además de una domus, una almazara, estructuras vinculadas al ocio o espacios de enterramiento serán objeto de estudio aportando una visión hasta el momento poco explorado de este lugar.
Organic and inorganic bromine measurements around the extratropical tropopause and lowermost stratosphere: insights into the transport pathways and total bromine
Authors: Rotermund Meike K. , Bense Vera , Chipperfield Martyn P. , Engel Andreas , Grooß Jens-Uwe , Hoor Peter , Hüneke Tilman , Keber Timo , Kluge Flora , Schreiner Benjamin , Schuck Tanja , Vogel Bärbel , Zahn Andreas , Pfeilsticker Klaus
Published: October 2021

Abstract. We report on measurements of total bromine (Brtot) in the upper troposphere and lower stratosphere taken during 15 flights with the German High Altitude and LOng range research aircraft (HALO). The research campaign WISE (Wave-driven ISentropic Exchange) included regions over the North Atlantic, Norwegian Sea, and northwestern Europe in fall 2017. Brtot is calculated from measured total organic bromine (Brorg) added to inorganic bromine (Bryinorg), evaluated from measured BrO and photochemical modeling. Combining these data, the weighted mean [Brtot] is 19.2±1.2 ppt in the northern hemispheric lower stratosphere (LS), in agreement with expectations for Brtot in the middle stratosphere (Engel and Rigby et al., 2018). The data reflect the expected variability in Brtot in the LS due to variable influx of shorter lived brominated source and product gases from different regions of entry. A closer look into Brorg and Bryinorg, as well as simultaneously measured transport tracers (CO and N2O) and an air mass lag time tracer (SF6), suggests that bromine-rich air masses persistently protruded into the lowermost stratosphere (LMS) in boreal summer, creating a high bromine region (HBrR). A subsection, HBrR∗, has a weighted average of [Brtot] = 20.9±0.8 ppt. The most probable source region is air recently transported from the tropical upper troposphere and tropopause layer (UT/TTL) with a weighted mean of [Brtot] = 21.6±0.7 ppt. CLaMS Lagrangian transport modeling shows that the HBrR air mass consists of 51.2 % from the tropical troposphere, 27.1 % from the stratospheric background, and 6.4 % from the midlatitude troposphere (as well as contributions from other domains). The majority of the surface air reaching the HBrR is from the Asian monsoon and its adjacent tropical regions, which greatly influences trace gas transport into the LMS in boreal summer and fall. Tropical cyclones from Central America in addition to air associated with the Asian monsoon region contribute to the elevated Brtot observed in the UT/TTL. TOMCAT global 3-D model simulations of a concurrent increase of Brtot show an associated O3 change of -2.6±0.7 % in the LS and -3.1±0.7 % near the tropopause. Our study of varying Brtot in the LS also emphasizes the need for more extensive monitoring of stratospheric Brtot globally and seasonally to fully understand its impact on LMS O3 and its radiative forcing of climate, as well as in aged air in the middle stratosphere to elucidate the stratospheric trend in bromine.
Inferring the absorption properties of organic aerosol in Siberian biomass burning plumes from remote optical observations
Authors: Konovalov Igor B. , Golovushkin Nikolai A. , Beekmann Matthias , Panchenko Mikhail V. , Andreae Meinrat O.
Published: October 2021

Abstract. Light-absorbing organic matter, known as brown carbon
(BrC), has previously been found to significantly enhance the absorption of
solar radiation by biomass burning (BB) aerosol. Previous studies have also
proposed methods aimed at constraining the BrC contribution to the overall
aerosol absorption using the absorption Ångström exponents (AAEs)
derived from the multi-wavelength remote observations at Aerosol Robotic
Network (AERONET). However, representations of the BrC absorption in
atmospheric models remain uncertain, particularly due to the high
variability in the absorption properties of BB organic aerosol (OA). As a
result, there is a need for stronger observational constraints on these
properties. We extend the concept of the established AAE-based methods in
the framework of our Bayesian method, which combines remote optical
observations with Monte Carlo simulations of the aerosol absorption
properties. We propose that the observational constraints on the absorption
properties of BB OA can be enhanced by using the single-scattering albedo
(SSA) as part of the observation vector. The capabilities of our method were
first examined by using synthetic data, which were intended to represent the
absorption properties of BB aerosol originating from wildfires in Siberia.
We found that observations of AAEs and SSA can provide efficient constraints
not only on the BrC contribution to the total absorption but also on both
the imaginary part of the refractive index and the mass absorption
efficiency of OA. The subsequent application of our method to the original
multi-annual data from Siberian AERONET sites, along with the supplementary
analysis of possible biases in the a posteriori estimates of the inferred
absorption properties, indicates that the contribution of BrC to the overall
light absorption by BB aerosol in Siberia at the 440 nm wavelength is most
likely to range, on average, from about 15 % to 21 %, although it is highly
variable and, in some cases, can exceed 40 %. Based on the analysis of
the AERONET data, we also derived simple nonlinear parameterizations for the
absorption characteristics of BB OA in Siberia as functions of the AAE.
Vulnerability of European ecosystems to two compound dry and hot summers in 2018 and 2019
Authors: Bastos Ana , Orth René , Reichstein Markus , Ciais Philippe , Viovy Nicolas , Zaehle Sönke , Anthoni Peter , Arneth Almut , Gentine Pierre , Joetzjer Emilie , Lienert Sebastian , Loughran Tammas , McGuire Patrick C. , O Sungmin , Pongratz Julia , Sitch Stephen
Published: October 2021

Abstract. In 2018 and 2019, central Europe was affected by two consecutive extreme dry and hot summers (DH18 and DH19). The DH18 event had severe impacts on ecosystems and likely affected vegetation activity in the subsequent year, for example through depletion of carbon reserves or damage from drought. Such legacies from drought and heat stress can further increase vegetation susceptibility to additional hazards. Temporally compound extremes such as DH18 and DH19 can, therefore, result in an amplification of impacts due to preconditioning effects of past disturbance legacies. Here, we evaluate how these two consecutive extreme summers impacted ecosystems in central Europe and how the vegetation responses to the first compound event (DH18) modulated the impacts of the second (DH19).
To quantify changes in vegetation vulnerability to each compound event, we first train a set of statistical models for the period 2001–2017, which are then used to predict the impacts of DH18 and DH19 on enhanced vegetation index (EVI) anomalies from MODIS. These estimates correspond to expected EVI anomalies in DH18 and DH19 based on past sensitivity to climate. Large departures from the predicted values can indicate changes in vulnerability to dry and hot conditions and be used to identify modulating effects by vegetation activity and composition or other environmental factors on observed impacts. We find two regions in which the impacts of the two compound dry and hot (DH) events were significantly stronger than those expected based on previous climate–vegetation relationships. One region, largely dominated by grasslands and crops, showed much stronger impacts than expected in both DH events due to an amplification of their sensitivity to heat and drought, possibly linked to changing background CO2 and temperature conditions. A second region, dominated by forests and grasslands, showed browning from DH18 to DH19, even though dry and hot conditions were partly alleviated in 2019. This browning trajectory was mainly explained by the preconditioning role of DH18 on the impacts of DH19 due to interannual legacy effects and possibly by increased susceptibility to biotic disturbances, which are also promoted by warm conditions. Dry and hot summers are expected to become more frequent in the coming decades, posing a major threat to the stability of European forests. We show that state-of-the-art process-based models could not represent the decline in response to DH19 because they missed the interannual legacy effects from DH18 impacts. These gaps may result in an overestimation of the resilience and stability of temperate ecosystems in future model projections.