bluuebunny/crossref_metadata_2025_split huggingface dataset:
ALTERAÇÕES NO SISTEMA SOLO-PLANTA EM FUNÇÃO DA REAPLICAÇÃO DE SILICATOS NO SISTEMA PLANTIO DIRETO
Authors: Meinhardt Júlio César , Deus Angélica Cristina  Fernandes , Büll Leonardo Theodoro 
Published: February 2020

Objetivou-se avaliar as alterações químicas ao longo do perfil do solo, o desenvolvimento e a produtividade da cultura da soja (Glycine Max L. “Merr”) em função da aplicação superficial de silicatos na correção da acidez do solo. Este experimento vem sendo conduzido há sete anos, em delineamento com blocos casualizados e parcelas subdivididas. As parcelas foram distribuídas inicialmente pelas formas de aplicação dos corretivos: aplicação com incorporação até 20 cm de profundidade e aplicação em superfície; e na subparcela têm se os corretivos: escória de aciaria, escória de forno de panela, escória do aço, wollastonita, calcário agrícola e calcário agrícola calcinado; além de uma testemunha sem aplicação de material corretivo; com quatro repetições. Os corretivos foram reaplicados manualmente a lanço, sem incorporação para ambas as formas de aplicação adotadas na implantação do sistema plantio direto. A wollastonita, escória do aço inox e escória de aciaria aumentaram os teores de P, K, Ca e Si, e os valores de SB, V% e pH. Para a soja, esses acréscimos foram fundamentais para proporcionar incrementos na produtividade de grãos chegando a 7,0 Mg ha-1 com a aplicação de escória de aciaria, não diferindo estatisticamente da escória do aço inox e da wollastonita.Palavras-chave: acidez do solo; calagem; escória de siderurgia; silício; soja. CHANGES IN THE SOIL-PLANT SYSTEM DUE TO THE REAPPLICATION OF SILICATES IN THE NO-TILLAGE SYSTEM ABSTRACT: The objective of this study was to evaluate the chemical changes along the soil profile, development and yield of the soybean crop (Glycine Max L. "Merr") as a function of the superficial application of silicates in soil acidity correction. This experiment has been conducted for seven years, in a randomized complete block design and subdivided plots. The plots were initially distributed by the application of the correctives: application with incorporation up to 20 cm and surface application; and in the subplot have the correctives: steel slag, ladle furnace slag, stainless steel slag, wollastonite, agricultural limestone and calcined agricultural limestone; as well as a control treatment without the use of correctives; with four replicates. The correctives were reapplied manually, without incorporation for both forms of application adopted in the implantation of the no-tillage system. Wollastonite, stainless steel slag and steel slag increased the contents of P, K, Ca and Si, and the values of SB, base saturation and pH. For soybeans, these additions were essential to provide grain yield increases of 7.0 Mg ha-1 with the application of steel slag, not statistically differing from stainless steel slag and wollastonite.Keywords: acidity of soil; liming; steel slag; silicon; soybean.
RENDIMENTO DO PROCESSAMENTO DOS PRODUTOS ORIUNDOS DA FIBRA VEGETAL DA PIAÇAVA (Attalea funifera)
Authors: Pimentel Noara Modesto , Del Menezzi Claudio 
Published: February 2020

O presente trabalho abordou uma análise integrada do processamento dos Produtos Florestais Não Madeireiros (PFNM) oriundos da fibra vegetal junto aos diversos atores da cadeia produtiva da piaçava da Bahia (Attalea funifera Mart. Arecaceae). Atualmente a renda média do agroextrativista é aproximadamente R$ 600,00/mês no sistema convencional. Neste caso as fibras vegetais são processadas e comercializadas nas formas: bruta, limpa, cortada, fino-média e grosso-média. Para obtenção de uma análise integral da cadeia produtiva, a metodologia empregada consistiu em: ensaios de rendimento em seis sistemas produtivos diferentes e entrevistas com gestores, diálogos com produtores e agroextrativistas tradicionais. Os resultados do processamento da fibra vegetal apontaram que 47,3% de resíduos são descartados, 35,6% são fibras fino-média, 5,3% grosso-média e 17% de “fita” são aproveitadas. Os ganhos do agroextrativista, supondo um cenário em que todas as etapas do processo produtivo de confecção das vassouras de piaçava fossem realizadas, corresponderiam a uma renda mensal líquida de R$ 1.664,63, muito acima da renda média atual.Palavras-chave: fibras naturais; produtos florestais não madeireiros (PFNMs); piaçava da Bahia; agroextrativismo; Mata Atlântica; resíduos florestais. YIELD OF THE PRODUCTS PROCESSING FROM THE VEGETABLE FIBER OF PIASSAVA PALM TREE (Attalea funifera) ABSTRACT: This article point out an integrated analysis of the processing of non-timber forest products (NTFPs) originating from the vegetable fiber with the different actors of the productive chain of the piassava palm tree of Bahia (Attalea funifera Mart. Arecaceae). Currently the average income of the of the agroextractivist is approximately US$ 256,13 per month in the conventional system. In that case, the vegetable fibers are processed and commercialized in the forms: raw fiber, clean fiber, cut fiber, thin-medium fiber and thick-medium fiber. In order to obtain complete analysis of piassava palm tree production chain, the methodology used consisted of: performance tests in six different production systems, the interviews with managers and dialogues with traditional producers and agroextractivists. The results of the processing of the vegetable fiber indicated that 47,3 % of the residues are discarded, 35,6% are thin-medium fibers, 5,3% thick-medium fibers and 17% of “stripes” (by-product) are used. The gains of the agroextractivist, supposing scenario in which all stages of the production process of making the piassava brooms were held, would be followed, might correspond to a monthly net reve nue of US$ 710,59 well above the current average yield.Keywords: natural fibers; Non-timber forest products (NTFPs); Bahia piassava; Atlantic forest; Exploitation of forest residues.
ESTUDO DA CAPACIDADE DE REGULARIZAÇÃO DE VAZÃO NA BACIA DO RIBEIRÃO SÃO BARTOLOMEU VISANDO ABASTECIMENTO PÚBLICO
Authors: Silva Greicelene Jesus da , Fraga Micael de Souza , Silva Demetrius David da 
Published: February 2020

O objetivo do presente trabalho foi avaliar a viabilidade de implantação de novos reservatórios de regularização de vazões na bacia do ribeirão São Bartolomeu, Minas Gerais, Brasil. Foram estudadas duas regiões para implementação de novos reservatórios. O cálculo da capacidade máxima de regularização foi realizado com base na metodologia conhecida como diagrama de massas. Para o dimensionamento da estrutura de emergência, foi realizado o cálculo da vazão máxima de projeto a partir do método racional modificado. A vazão média evaporada do período de estudo resultou em 4,5 L s-1 e 1,0 L s-1 para os reservatórios. Foram obtidos volumes úteis de 375.216 m³ e 66.596 m³ e profundidades máximas de 16,2 m e 17,7 m. As áreas dos espelhos de água equivaleram a 93.348 m² e 18.041 m². Tendo em vista o quadro de escassez hídrica no município de Viçosa, recomenda-se a implantação de um dos reservatórios, com aumento da disponibilidade hídrica para fins de abastecimento público. Entretanto, são necessários maiores estudos em relação à potencialidade de aumento dos conflitos por recursos hídricos na bacia. Adicionalmente, ressalta-se a necessidade da avaliação de potenciais alterações na qualidade da água do rio a jusante dos reservatórios propostos.Palavras-chave: disponibilidade hídrica; ponto de captação; reservatórios. STUDY OF FLOW REGULATION CAPACITY IN THE SÃO BARTOLOMEU RIVER BASIN FOR WATER SUPPLY ABSTRACT: This paper aimed to evaluate the viability of the implementation of new reservoirs to regulate flow in the São Bartolomeu river basin, Minas Gerais, Brazil. Two regions were studied. The maximum regularization capacity was calculated based on the methodology known as mass diagram. For the dimensioning of the emergency structure, the maximum design flow was calculated from the modified rational method. The mean evaporated flow of the study period resulted in 4.5 L s-1 and 1.0 L s-1. Useful volumes of 375,216 m³ and 66,596 m³ and maximum depths of 16.2 m and 17.7 m were obtained. The water mirrors areas obtained for the new dams amounted to 93,348 m² and 18,041 m². Considering the situation of water scarcity in the municipality of Viçosa, it is recommended to install one of the proposed reservoirs, with increased availability of water for public supply. However, further studies are needed regarding the potential for increasing conflicts over water resources in the basin. In addition, the need to evaluate changes in river water quality downstream the proposed reservoirs is emphasized.Keywords: water availability; catchment point; reservoirs.
Challenges to Parental Involvement in Children’s Education at a Primary School: A Rasch Analysis
Authors: Badrasawi Kamal , Yahefu Humaer , Khalid Madihah 
Published: February 2020

AbstractLiterature has evidenced the positive significant role of parental involvement in children’s personality development and education. However, research on parental involvement in children’s education is sparse in rural areas, especially among ethnic minorities in China. Hence, a research project was conducted to examine the level of parental involvement and its role in influencing children’s academic achievement in these areas; and to identify the challenges to parental involvement. This paper aimed to identify the challenges to parental involvement using the cross-sectional survey design. The parents’ of Grades Three and Four school children were selected to answer a questionnaire on parental involvement. The items on challenges to parental involvement were analyzed using the Rasch Measurement Model (Winsteps software program, version 4.1.0). The Rasch analyses revealed that the research instrument met the measurement requirements. Parents’ low proficiency in the Chinese language and the complexity of the school subjects were the biggest challenges to parental involvement. This research has provided useful information to parents, teachers, school administration and policy makers. Further research could be conducted using more items and larger samples from other school grades. Qualitative research is recommended to obtain more in-depth information on parental involvement in general, and the challenges in particular.
Keywords: Parental involvement, Rasch measurement model, challenges to parental involvement, children’s personality development, China's ethnic minorities
PERANCANGAN PERAHU PEMBERSIH SAMPAH DI ALIRAN SUNGAI KOTA BANJARMASIN
Authors: Firman Muhammad , Irfansyah Muhammad 
Published: February 2020

Upaya dari pemerintah daerah di kalimantan selatan untuk mengembalikan fungsi sungai melalui kegiatan aksi bersih-bersih aliran sungai khususnya kota banjarmasin sudah mulai menjadi perhatian masyarakat dan pemko, untuk menjadikan kota banjarmasin sebagai destinasi wisata air seperti halnya amsterdam. Namun masih belum secara menyeluruh, karena ternyata masih banyak sampah-sampah di aliran sungai kecil yang sulit di bersihkan. Untuk itu sangat perlu adanya koordinasi yang lebih baik dalam menjaga kebersihan lingkungan. Di banjarmasin dalam mengatasi permasalahan sampah sungai sudah menggunakan kapal pembersih sampah untuk sungai besar, sedangkan untuk anak sungai yang kecil-kecil lebih kurang lebarnya antara 2 m sampai 4 meter ada yang menggunakan sampan seadanya yang mana petugas kebersihannya kalau membersihkan sungai tersebut terjun kesungai untuk memunguti sampah sedangkan perahunya untuk penampungan sampah sementara sebelum dibuang kepembuangan sampah akhir. Atas dasar itulah maka sangat diperlukan sebuah desain perahu pembersih sampah yang sesuai dengan kondisi sungai di kota banjarmasin. Sehingga kegiatan bersih-bersih tersebut benar-benar efektif dan efesien. Dari hasil analisa dan perhitungan yang dilakukan maka dapat disimpulkan sebagai berikut: Desain perahu pengangkut sampah sudah sesuai dengan yang diharapkan supaya mampu beroperasi di sungai kecil, sempit dan mampu bekerja pada kondisi air dangkal. Kemampuan apung yang didapatkan adalah sebesar = 4716,648 N, Jika perahu saat kosong bagian perahu yang tidak tenggelam adalah sebesar 3436,7069 N, Sedangkan jika berat perahu terisi maksimal bagian perahu yang tidak tenggelam adalah sebesar 984,2069 N. Titik berat penampang perahu terletak pada Z( Xo , Yo ) = Z( 1650 mm , 750 mm ).
Noise Citra dan Estimasi Dosis Radiasi dengan Aktifasi Sistem Automatic Exposure Control pada Pemeriksaan Computed Tomography Kepala
Authors: Indrati Rini , Yazid Azlan , Abimanyu Bagus 
Published: February 2020

Background: Of the ways to maintain optimum image quality and reduce the intensity of radiation to patients is optimizing the value of tube current (mAs) using parameter of Automatic Exposure Control (AEC) or mA modulation. But at the fact in hospital, protocol parameter Automatic Exposure Control (AEC) is not activated or OFF on head computed tomography examination.Methods: This study was a quatitative experimental study. Subject of this study was head phantom. Phantom scanned with four treatments, the activation parameters was sure exp.3D-high quality, sure exp.3D-standard, sure exp.3D-low dose and AEC-OFF. Noise was analyzed using the standard deviation of the CT Number. The ROI of approximately 5 mm2 the intracranial area which is divided into three quadrants namely the anterior region, central region and posterior region of neck which is uniform are aof phantom.Results: The results showed significant differences when parameter automatic exposure control was activated and disabled or AEC-OFF with p value was 0.003 (0,05). Furthermore, based on the scanning results in a change of radiation dose estimation to the highest doses value of the activation parameters of automatic exposure control and the lowest dose when parameter automatic exposure control deactivated or AEC-OFF.Conclusion: Activation parameters of automatic exposure control (sure exp. 3D) on a head CT examination image noise tends to decline and give a higher radiation dose than when parameter automatic exposure control deactivated or AEC-OFF.
Analisis Perubahan kV dan mAs terhadap Kualitas Gambar dan Dosis Radiasi pada Pemeriksaan Multislice Computed Tomography Abdomen dalam Kasus Tumor Abdomen di Instalasi Radiologi RSUD dr. Saiful Anwar Malang
Authors: Wibowo Ardi Soesilo , Wibowo Gatot Murti , Prabowo Anang 
Published: February 2020

Backgroud: Examination of the abdomen CT scan is often done by using standard protocol, meanwhile the actual parameter can be modified according to local needs considering image quality and radiation dose based on Karabulut and Ariyuek (2016). Abdomen CT Scan by GE 16 slices unit in Radiology Instaallation of Dr. Saiful Anwar Malang Hospital, using exposure factor of 120 kV, 234 mAs and the value of the CTDI dose was 53.04 mGy. While the BAPETEN’s reference of CTDI value, a CT scan of abdomen was 25 mGy. This study aims to determine the changes of the value of kV and mAs to the image quality and the radiaton dose in the abdomen MSCT examination on abdominal tumor case in Radiology Installation of Dr. Saiful Anwar Malang Hospital.Methods: This research was a quantitative research with an experimental approach. The data were collected from three variations of tube voltage (kV) ie 100 kV, 120 kV and 140 kV and three variations of tube current value and time (mAs) ie, 180 mAs, 195 mAs, and 210 mAs. Radiographs was evaluated by three radiology physicians. Data were analyzed by scoring method of respondent’s assessment to assess MSCT image quality of abdominal tumor, while the radiation dose was obtained by CTDI recording.Results: The results showed that there was influence of tube voltage variation to image quality of abdominal tumor using MSCT unit. The higher kV used, the higher image quality resulted. From the calculation of the percentage from the assessment, the highest score of variation was at 140 kV, while the lowest score of variation was at 100 kV. Based on the recording CTDI radiation dose on the monitor, found that the higher value of kV, the higher radiation resulted. The mAs variations influenced the image quality of abdominal tumor using MSCT unit. Acoording to the percentage of the assessment, the highest score of variation found in 210 mAs, and the lowest score of variation found in 180 mAs. Based on the recording of radiation dose on the monitor, the higher mAs value, the higher radiation dose using MSCT unit. It was recommended to use 195 kV and 120 mAs for MSCT examination of abdominal tumor in Radiology Installation of Dr. Saiful Anwar Malang Hospital.Conclusion: There was influence of kV and mAs variation to anatomical image clarity and radiation dose of abdomen MSCT examination
Factors Associated with Mortality Including Nursing Home Transitions: A Retrospective Analysis of 25,418 People Prescribed Anti-Dementia Drugs in Northern Ireland
Authors: McMichael Alan J. , Zafeiridi Evi , Passmore Peter , Cunningham Emma L. , McGuinness Bernadette 
Published: February 2020

Background: Understanding factors associated with mortality after a dementia diagnosis can provide essential information to the person with dementia, their family, and caregivers. To date very little is known about the factors associated with mortality after a dementia diagnosis in Northern Ireland. Objective: To determine how demographic and other factors such as deprivation and comorbidity medications influence mortality rates after a dementia diagnosis in Northern Ireland and whether these factors are influenced through nursing home transitions. Methods: 25,418 people prescribed anti-dementia medication were identified through the enhanced prescribing database between 2010 and 2016. The impact of covariates including age, gender, marital status, deprivation measure, urban/rural classification, and comorbidity medications were examined using cox proportional hazard models with hazard ratios (HR) and 95% confidence intervals. Results: Between 2010 and 2016, 12,129 deaths occurred, with 114 deaths/1,000 person years. Males had significantly higher mortality rates in comparison to females (HR = 1.28; 95% CI = 1.23–1.33); this was true regardless of whether the person with dementia transitioned to a nursing home. People prescribed anti-dementia drugs living with lower levels of deprivation had significantly lower mortality rates in comparison to people living with the highest levels of deprivation (HR = 0.93; 95% CI = 0.89–0.97). Diabetic (HR = 1.18; 95% CI = 1.07–1.29) and anti-arrhythmic (HR = 2.44; 95% CI = 1.01–5.91) medication in particular significantly influenced mortality. Conclusion: Male gender, higher comorbidity medications, and living in areas of higher deprivation significantly increased mortality rates for people prescribed anti-dementia drugs in our study population. When comorbidity medications were classified, only anti-arrhythmia and diabetic medications significantly increased mortality. Future research should continue to investigate factors which influence mortality after a dementia diagnosis.
Efficacy of coupling intermittent theta-burst stimulation and 1 Hz repetitive transcranial magnetic stimulation to enhance upper limb motor recovery in subacute stroke patients: A randomized controlled trial
Authors: Meng Ying , Zhang Dai , Hai Hong , Zhao Ying-Yu , Ma Yue-Wen 
Published: February 2020

Background: Both 1 Hz repetitive transcranial magnetic stimulation (rTMS) and intermittent theta-burst stimulation (iTBS) are reported to benefit upper limb motor function rehabilitation in patients with stroke. However, the efficacy of combining 1 Hz rTMS and iTBS has not been adequately explored. Objective: We aimed to compare the effects of 1 Hz rTMS and the combination of 1 Hz rTMS and iTBS on the upper limb motor function in the subacute phase post-stroke. Methods: Twenty-eight participants were randomly assigned to three groups: Group A (1 Hz rTMS over the contralesional primary motor cortex (M1) and iTBS over the ipsilesional M1), Group B (contralesional 1 Hz rTMS and ipsilesional sham iTBS), and Group C (contralesional sham 1 Hz rTMS and ipsilesional sham iTBS). The participants received the same conventional rehabilitation accompanied by sessions of transcranial magnetic stimulation for two weeks (5 days one week). Motor-evoked potential (MEP), upper extremity Fugl-Meyer Assessment (UE-FMA), and Barthel Index (BI) were performed before and after the sessions. Results: Group A showed greater UE-FMA, BI, and MEP amplitude improvement and more significant decrement in MEP latency compared to Group B and Group C in testable patients. Correlation analyses in Group A revealed a close relation between ipsilesional MEP amplitude increment and UE-FMA gain. Conclusions: The combining of 1 Hz rTMS and iTBS protocol in the present study is tolerable and more beneficial for motor improvement than the single use of 1 Hz rTMS in patients with subacute stroke.
Суб’єктно-когнітивна концепція саморегуляції навчання школярів із затримкою психічного розвитку
Authors: Прохоренко Леся 
Published: February 2020

Представлено теоретичний план дослідження, що передбачав інтеграцію та спеціалізацію
психологічних знань у галузі суб’єктно-діяльнісної теорії, виявлення структурнофункціональної специфіки саморегуляції, удосконалення інтерпретації саморегуляції як психічної діяльності особистості. Інтерпретовано поняття «саморегуляція навчальної діяльності», що розглядається як внутрішня діяльність учня, у якій мотиви і мета характеризують її як процес, переважно в суб’єктному вимірі; аналіз, синтез і узагальнення умов діяльності, що розв’язується, – характеризують саморегуляцію переважно у процесуальному аспекті, – як діяльність. Неперервний взаємозв’язок обох цих аспектів визначено одним із проявів цілісності системи саморегуляції. Дослідження й аналіз різних чинників, і їх зіставлення, дало змогу простежити всі сторони розвитку саморегуляції діяльності в процесі навчання дітей із затримкою психічного розвитку.