bluuebunny/crossref_metadata_2025 huggingface dataset:
Chemical and Electrochemical Properties of Bamboo Activated Carbon Activate Using Potassium Hydroxide Assisted by Microwave-Ultrasonic Irradiation
Authors: Mohd Zawawi Norakmalah , Hamzah Fazlena , Veny Harumi , Mohd Rodhi Miradatul Najwa , Sarif Mahanim
Published: December 2021

This paper presents the utilization of bamboo residue from the chopstick industry as modified carbon (AC) for supercapacitor application.  Bamboo activated carbon (BAC) was activated using Potassium hydroxide (KOH) and assisted with microwave ultrasonic (Mw-U) irradiation to enhance the properties of bamboo activated carbon (BAC). Different microwave (Mw) power intensities of 100 W, 300 W, and 500 W at 30 minutes of retention time have been applied on activation and the carbonization process was conducted at temperature 800°C. The BAC was analyzed for the morphology using a scanning electron microscope and proximate and ultimate analysis. Then BAC with the higher surface area was subjected to the electrochemical analysis to determine the electrochemical properties. The study indicated Mw-U irradiation improved the morphology of the BAC, eliminated the impurity of the sample, and gave higher carbon content of BAC. The findings show that lower Mw-U irradiation power provided a higher surface area of BAC. The surface area of 646.87 m2/g and total pore volume of 2.8x10-1 cm3/g was obtained with a power intensity of Mw-U activation at 100 W. While, electrochemical properties, the specific capacitance (Cs) of BAC was 77 Fg-1 at 25 mVs-1 in 1 mol/L KOH of electrolyte for cyclic voltammetry (CV) which indicates the ability of the prepared BAC to be used as an electrode in supercapacitor application. This study determined that Mw-U irradiation can improve the properties of the bamboo during chemical activation and formed BAC that consists of supercapacitor properties.
Evaluasi Manfaat Penggantian Chemical Amine N1800 menjadi N1805 dalam rangka Pengurangan Jejak Karbon
Authors: Widiyantara Wahyu , Adiputra Muhammad Kurniawan , Wijayanto Eka , Marbelia Lisendra
Published: December 2021

Inovasi berkelanjutan pada alat dan atau proses di dalam industri kimia untuk mencapai efisiensi dan industri yang ramah lingkungan wajib dilakukan. Dalam mendukung hal ini PT. KMI melakukan modifikasi proses dengan mengganti bahan neutralizing amine yang digunakan pada sistem boiler feed water. Penggantian amine dilakukan pada pertengahan tahun 2017, dari amine N1800 menjadi N1805. Data konsumsi amine dan air pelarut tahun 2015-2020 digunakan sebagai dasar evaluasi. Estimasi jumlah emisi juga dilakukan dengan menghitung kebutuhan air pelarut, drum kontainer bahan amine dan juga transportasi bahan dari produsen ke PT. KMI. Dari hasil perhitungan, dapat disimpulkan bahwa penggantian bahan amine dari N1800 ke N1805 memberikan benefit yang baik, yaitu: (1) menurunkan biaya tahunan untuk konsumsi amine, (2) menurunkan kebutuhan air pelarut dan beban pencemar air dan (3) menurunkan emisi secara signifikan. Penurunan emisi sebagian besar berasal dari penghematan penggunaan drum kontainer dan transportasi, sedangkan dari penurunan penggunaan air kurang signifikan.
The Intricate Biological Proximity of Vitamin D and Brain Serotonin
Authors: Maini Abhineet
Published: December 2021

Abstract: Background: The purpose of this article is to extend and elaborate on our current understanding of Calcitriol and Brain Serotonin synthesis; particularly on how the two may be related. Methods: Using a 2014 study involving clinical trials to extend this hypothesis. Results: Vitamin D (Calcitriol) activated the gene that codes for Tryptophan Hydroxylase 2, which synthesizes Brain Serotonin. It also inhibits Tryptophan Hydroxylase 1, which makes serotonin in the gut. Conclusion: Vitamin D is closely related to the synthesis of Brain Serotonin. If furthered, it may be used as a treatment for the Serotonin Anomaly in Autistic Children. Keywords: 1. Biochemistry 2. Genetics 3. Neuroscience 4. Physiology
Hubungan Karakteristik Demografi dengan Pengetahuan, Sikap, dan Perilaku terhadap Pencegahan Covid-19 pada Pasien Rawat Jalan
Authors: Muryawan Heru , Yusnita Dian , Muyassaroh Muyassaroh
Published: December 2021

Abstract

Education is one of the factors that influence a person's knowledge, thereby increasing human attitudes and behavior for the better. Public knowledge about Covid-19 is very important so that prevention of Covid-19 can be done to reduce the number of incidents. The purpose of this study was to determine the relationship between education level and knowledge, attitudes and behavior of patients on the prevention of Covid-19. This study is a descriptive analytic study on patients aged 18-66 years in the outpatient installation of Merpati RSUP Dr. Kariadi in June 2020 using a validated questionnaire. The number of samples determined was 186. Sampling was carried out by consecutive sampling. Data analysis with Chi Square test. Significant results if p<0.05. There were 186 respondents, the lowest was 15 years and the highest was 66 years. It was found that the level of education was not related to knowledge (p=0.397) and attitude (p=0.148). There is a relationship between education level and behavior (p=0.003). There is a relationship between knowledge and behavior towards the prevention of transmission of Covid-19 with a value of p=0.025. Behavior is related to attitudes towards preventing the transmission of Covid-19 (p<0.001).

Keywords: Covid-19 prevention, knowledge, attitude, behavior.

Abstrak

 

Pendidikan merupakan salah satu faktor yang mempengaruhi pengetahuan seseorang sehingga meningkatkan sikap dan perilaku manusia menjadi lebih baik. Pengetahuan masyarakat mengenai covid-19 merupakan hal yang sangat penting agar pencegahan Covid-19 dapat dilakukan untuk menurunkan angka kejadian.Tujuan penelitian ini adalah mengetahui hubungan tingkat pendidikan denagn pengetahuan, sikap dan perilaku pasien terhadap pencegahan covid-19. Penelitian ini bersifat diskriptif analitik yang dilakukan pada pasien usia 18 – 66 tahun di instalasi rawat jalan merpati RSUP Dr. Kariadi bulan juni 2020 dengan menggunakan kuesioner yang sudah divalidasi. Jumlah sampel yang ditentukan sebanyak 186. Pengambilan sampel dilakukan secara consecutive sampling. Analisis data dengan uji Chi Square. Batas kemaknaan p<0,05. Hasil penelitian di dapatkan 186 responden umur terendah 15 tahun dan tertinggi 66 tahun. Didapatkan tingkat pendidikan tidak berhubungan dengan pengetahuan (p=0,397) maupun sikap(p=0,148). Terdapat hubungan antara tingkat pendidikan dengan perilaku (p=0,003). Terdapat hubungan antara pengetahuan dengan perilaku terhadap pencegahan penularan Covid–19 dengan nilai p=0,025. Perilaku berhubungan dengan sikap terhadap pencegahan penularan Covid–19 (p<0,001).
SOTAQUE PREMIADO: A INCIDÊNCIA DE MEDALHAS NATURALIZADAS NOS JOGOS OLÍMPICOS RIO 2016
Authors: Maoski Diogo Bonin , Maoski Ana Paula Cabral Bonin , Santos Thiago de Oliveira , Mezzadri Fernando Marinho , Nascimento Thiago Cavalcante
Published: December 2021

O objetivo do estudo foi analisar a incidência de medalhistas olímpicos naturalizados nos Jogos Olímpicos do Rio de Janeiro em 2016. Trata-se de uma pesquisa quantitativa de natureza descritiva. Os resultados demonstram que 6,6% das medalhas foram distribuídas para atletas naturalizados, o que corresponde a 6,9% do total de atletas vencedores de medalhas. Os resultados apontam ainda que a maior parte do fluxo migratório de atletas medalhistas ocorreu de países de menor desempenho econômico para os de maior desempenho econômico e de países de menor desempenho olímpico para países de maior desempenho olímpico. As conclusões indicam que o atual contexto de naturalização de atletas tende a ser mais benéfico aos países de grande desempenho econômico e olímpico, bem como aos países de grande desempenho econômico, mas sem tradição no esporte, sendo desvantajoso aos países de baixo desempenho econômico.
PEDAGOGIC INTERVENTION FOR HEALTH: A NARRATIVE SYSTEMATIC REVIEW ON BIODANZA
Authors: Ferraro Francesco Vincenzo , Aruta Luigi , Ambra Ferdinando Ivano , Distaso Francesco Paolo , Iavarone Maria Luisa
Published: December 2021

This research reports on the first narrative review of Biodanza’s effects on health and wellbeing. The review explores manuscripts in four languages (i.e., Italian, Spanish, Portuguese and English) and includes more than 200 documents. The protocol was evaluated according to the most recent SANRA guidelines and Kappa statistics. The research shows that the majority of the studies had descriptive approaches (29.2%), followed by robust control trials (26.8%), while the remaining studies included both narrative and systematic reviews (19.5%) as well as pilot (14.6%), ethnographic (7.3%), and assessment (2.4%) studies. The research team concluded that Biodanza is an innovative intervention to improve clinical and socio-pedagogic outcomes in different cohorts (including kindergartens and chronic senile-disease patients) and should be fostered for additional trials along or in comparison with alternative interventions (such as Bodytasking).
O ENSINO DA EDUCAÇÃO FÍSICA NA EJA: UMA ANÁLISE A PARTIR DE FALAS DOS PROFESSORES
Authors: Andrade Junior Sergio Henrique Noblat de , Rosas Agostinho da Silva , Lorenzini Ana Rita , Brasileiro Lívia Tenorio , Souza Júnior Marcílio Barbosa Mendonça de , Melo Marcelo Soares Tavares de
Published: December 2021

O estudo teve por objetivo analisar o ensino da Educação Física no contexto da EJA da rede municipal da Prefeitura do Ipojuca/PE, a partir de falas dos professores. É um estudo de natureza qualitativa, subsidiado pelo método hermenêutico-dialético, realizado com oito sujeitos por meio de entrevistas semiestruturadas, através da técnica de análise de conteúdo categorial por temática para análise dos dados. Conclui-se que os professores utilizaram-se de diferentes metodologias de ensino para ministrar aulas, havendo necessidade de práticas que oportunizem a experimentação corporal como centralidade, além de considerar a realidade escolar, a infraestrutura para propor aulas, projetos e seminários, desde objetivos, planejamento e avaliação dos saberes que orientam sua prática.
TEACHING FOR UNDERSTANDING THE INTERNAL LOGIC OF SPORTS: A PERSPECTIVE BASED ON TEACHING GAMES FOR UNDERSTANDING AND MOTOR PRAXIOLOGY
Authors: Menezes - Fagundes Felipe , Ribas João Francisco Magno , Salas-Santandreu Cristòfol , Lavega-Burgués Pere
Published: December 2021

This essay aimed to propose a perspective of Teaching for Understanding (TGfU) the Internal Logic of sports from the methodological structure of TGfU and knowledge about internal logic of Motor Praxiology (MP). Considering specific criteria for literature review, 18 articles were selected that supported the theoretical discussion. Methodological aspects of TGfU and the main concepts of MP were presented, which enabled the theoretical articulation proposed in this essay. As main contributions from the perspective of Teaching for Understanding Internal Logic, didactic tools were structured to mediate the teaching-learning process from the subject/environment relationship. In addition, a methodological systematization was proposed to organize the pedagogical practice for the development of Teaching for Understanding Internal Logic. Finally, it contextualizes the need for further studies that seek to identify how this perspective helps teachers in the teaching-learning process of sports.
INTERSEÇÕES ENTRE OS CAMPOS ESPORTIVO E CIENTÍFICO: A SOCIOLOGIA DO ESPORTE COMO ELEMENTO COMUM (2011-2018)
Authors: Quaranta André Marsiglia , Souza Daniel Minuzzi de , Mezzadri Fernando Marinho , Marchi Júnior Wanderley
Published: December 2021

O esporte tem sido objeto de análise em diversas áreas do conhecimento no Brasil. Uma aproximação a partir das Ciências Sociais e Humanas tem possibilitado a exploração de elementos interpretativos singulares que ampliam a compreensão desse complexo fenômeno. Este texto tem como objetivo mapear estudos que versam sobre a Sociologia do Esporte nos programas de pós-graduação brasileiros entre 2011 e 2018, visando contribuir com a sistematização da produção científica desse subcampo. Após levantamento de dissertações e teses, descrevemos as principais características dessas produções, classificando-as em categorias sociológicas para análise do campo esportivo, sendo o futebol hegemonicamente a modalidade mais explorada por pesquisadores de diversas áreas.
E A EDUCAÇÃO FÍSICA? NARRATIVAS DE PROFESSORES-PESQUISADORES SOBRE AS AULAS REMOTAS EM INSTITUTOS FEDERAIS
Authors: Ferreira Heidi Jancer , Miotto Keila , Pereira Juscélia Cristina , Lopes Josué , Gontijo Karla Queiroz , Pereira Claudia Catarino , Klehm Renata Beatriz , Santos Wagner Edson Farias
Published: December 2021

A implementação do ensino remoto em decorrência da pandemia da covid-19 se configurou como uma nova e complexa realidade para as comunidades escolares. Neste contexto, o objetivo deste trabalho foi analisar as experiências de professores-pesquisadores de Educação Física com o ensino remoto em Institutos Federais. Embasada na perspectiva freireana e na teoria social da aprendizagem, a pesquisa foi desenvolvida com abordagem qualitativa e colaborativa através do método da narrativa autobiográfica. Oito professores-pesquisadores participaram do estudo. Os dados foram gerados a partir de narrativas produzidas pelos professores-pesquisadores e foram analisados através de comparações constantes. Como resultados, quatro temas foram identificados: novos cenários e desafios; aproximação e colaboração entre pares; conectando com os estudantes; e repensando as aulas de Educação Física. Em conclusão, as experiências docentes envolveram respostas transformadoras frente aos limites encontrados no ensino remoto, incluindo a escuta dos estudantes e a formação de um grupo de estudos e aprendizagem colaborativa.
Hemşirelik Duygusal Habitusu ile İlgili Lisansüstü Tezlerin Değerlendirilmesi
Authors: MALAK Bahanur
Published: December 2021

Türkiye’de hemşirelik duygusal habitusu kavramı üzerine yapılmış lisansüstü tezlerin incelenmesi amaçlanmıştır. Yükseköğretim Kurulu Ulusal Tez Merkezi veri tabanında “duygu, duygusal emek, habitus, duygusal habitus, sermaye, duygusal sermaye, kültürel sermaye, sosyal sermaye, psikolojik sermaye, simgesel sermaye, hemşire, hemşirelik” anahtar kelimeleri ayrı ayrı ve birlikte kullanılarak tarama yapılmıştır. Tez değerlendirme formu araştırmacı tarafından oluşturulmuştur. Anahtar sözcüklerden duygu, duygusal emek, duygusal habitus, sosyal sermaye, psikolojik sermaye ile ilgili hemşireler ve Hemşirelik öğrencileri ile yürütülen lisansüstü 64 teze ulaşılmıştır. Dolaylı kavramlarla hemşirelik duygusal habitusu hakkında birçok alanda çalışmanın var olduğu anlaşılmaktadır. Bu kavramlar duygusal habitusun temellendiği ve şekillendirdiği hemşirelik sermayeleri ve duygusal emek ile ilgilidir. Tezlerin %78.1 yüksek lisans tezidir. Bu tezler %25 oranında İşletme, %21.9 oranında Hemşirelik ana bilim dallarında; çoğunlukla Hacettepe ve Ondokuz Mayıs üniversitelerinde (%7.8), 2019 (%32.8) yılında yapıldığı görülmüştür. Tezlerin %95.3’ü nicel çalışmadır. sağlık bilimleri enstitülerinde ağırlıklı olarak duygusal emek, sosyal bilimler enstitülerinde psikolojik sermaye çalışılmıştır. En fazla konu çeşitliliği Psikiyatri ve Ruh Sağlığı Hemşireliği eğitim programıdır. Duygusal emek konusunda 21 ve psikolojik sermaye konusunda 8 tez hemşirelerle yürütülmüştür. Hemşirelerin dâhil olduğu sağlık personeli ile yürütülen tezlerin 12’si psikolojik sermaye ve 2’si sosyal sermaye konularındadır. Öğrenci hemşireler ile yürütülen tezler Hemşirelik Ana Bilim Dalı ve Çocuk Sağlığı ve Hastalıkları Hemşireliği Programıdır. Hemşirelerin örneklem olduğu tezlerin sadece 4’ü doktora tezidir. Tezlerin büyük çoğunluğunun yüksek lisans tezi olduğu, nicel araştırma deseninde yapıldığı, doğrudan duygusal habitus kavramıyla 1 tez yürütüldüğü saptanmıştır. Duygusal habitus konusunda çalışma yapacak olan araştırmacılara yol gösterici olması beklenmektedir.
Prediksi Harga Beras Di Tingkat Perdagangan Besar Indonesia Menggunakan Algoritma Backpropagation
Authors: Natasya  , Musdalifah S , Andri
Published: December 2021

Beras merupakan salah satu bahan pokok yang paling banyak dikonsumsi masyarakat Indonesia dan beras tidak hanya sebagai makanan pokok saja melainkan sebagai sumber nutrisi penting dalam struktur pangan. Pada umumnya harga beras di perdagangan besar Indonesia dari waktu ke waktu mengalami kenaikan, dan jika dilihat dari segi ekonomi, harga beras merupakan salah satu aspek penting yang perlu mendapatkan perhatian, karena jika harga beras terus naik hal tersebut dapat mempengaruhi pada daya beli masyarakat dan daya produksi petani. Oleh karena itu salah satu cara untuk mengetahui perkiraan harga eceran beras adalah dengan melakukan peramalan atau prediksi. Tujuan penelitian ini adalah untuk mendapatkan hasil prediksi harga beras menggunakan metode backpropagation pada tahu 2021. Penelitian ini dilakukan dengan menggunakan data harga beras di tingkat perdagangan besar Indonesia dari Januari 2010 – Desember 2020. Data tersebut digunakan untuk proses pelatihan dan proses pengujian yang masing-masing sebesar 50%. Tingkat akurasi yang diperoleh menggunakan MAPE mencapai 0.54467% untuk data trainng dan mencapai untuk data testing.
Analisis Regresi Data Panel Pada Kemiskinan Provinsi Aceh Tahun 2016-2020
Authors: Wahyudi
Published: December 2021

Kemiskinan menjadi salah satu indikator kesejahteraan pembangunan disuatu daerah. Semakin tinggi tingkat kemiskinan suatu daerah maka akan mengindikasikan bahwa kualitas pembangunan masyarakat di daerah tersebut rendah. Penelitian ini bertujuan untuk memodelkan dan mengetahui  faktor-faktor yang mempengaruhi kemiskinan di provinsi Aceh tahun 2016-2020. Metode analisis yang digunakan adalah analisis regresi data panel dengan sumber data sekunder yang diperoleh dari badan pusat statistika (BPS).  Hasil penelitian menunjukkan bahwa model yang sesuai dengan data kemiskinan provinsi Aceh tahun 2016-2020 adalah model regresi data panel dengan pengaruh tetap (Fixed effect model). Faktor-faktor yang signifikan mempengaruhi kemiskinan yaitu indek pembangunan manusia, angka kesakitan, dan laju pertumbuhan penduduk dengan nilai R squared yang tinggi sebesar 97.14 % .
Membangun Model Matematika Penyebaran Penyakit Difteri Oleh Corynebacterium Diphtheriae Pada Populasi Manusia
Authors: Sato M , Ratianingsih R , Hajar
Published: December 2021

Penyakit difteri pada manusia disebabkan oleh Corynecbacterium diphtheriae. Difteri menular melalui kontak langsung dan tidak langsung, menyerang semua kelompok usia, dan menyebabkan komplikasi bahkan kematian pada manusia. Penelitian ini bertujuan untuk membangun model matematika penyebaran penyakit difteri pada populasi manusia dengan menggunakan model SEIR (Susceptible-Exposed-Infected-Recovered) berdasarkan kondisi Corynebacterium diphtheriae. Model tersebut melibatkan subpopulasi manusia yang rentan terhadap penyakit (𝑆), subpopulasi manusia pada masa inkubasi (𝐸), subpopulasi manusia yang terinfeksi (𝐼), subpopulasi manusia yang telah sembuh dari penyakit (𝑅), subpopulasi manusia yang dikarantina (𝑈), subpopulasi bakteri sehat (𝐻), populasi virus yang menginfeksi bakteri (𝑉), dan subpopulasi bakteri mampu menghasilkan toksin (𝑀). Model matematika ini dianalisis kestabilannya dengan menggunakan metode linearisasi dan kriteria Routh-Hurwitz. Hasil penelitian menunjukkan bahwa titik kritis menggambarkan kondisi endemik yang stabil tanpa syarat. Hal inimenunjukkan bahwa penyakit difteri akan tetap ada dalam populasi manusia.
FORECASTING THE CONSUMER PRICE INDEX IN YOGYAKARTA BY USING THE DOUBLE EXPONENTIAL SMOOTHING METHOD
Authors: Febriyanti Syintya , Pradana Wahyu Aji , Muhammad Juliana Saputra , Widodo Edy
Published: December 2021

The Consumer Price Index (CPI) is an indicator that is often used to measure the inflation rate in an area, or can be interpreted as a comparison between the prices of a commodity package from a group of goods or services consumed by households over a certain period time. The spread of COVID-19 throughout the world affects the economy in Indonesia, especially Yogyakarta. Forecasting CPI data during the COVID-19 pandemic has the benefit of being an illustration of data collection in the CPI of D.I Yogyakarta Province in the predicted period. This is useful as a comparison with the original data at the time of data collection and publication, as well as a consideration in making policies and improving the economy. Researchers use the Double Exponential Smoothing (DES) method to predict the CPI of Yogyakarta D.I Province, which aims to determine the best forecasting model and forecasting results. This method is rarely used in research on CPI data forecasting in Yogyakarta. The data in this study are monthly data from March 2020 to August 2021. The highest CPI in Yogyakarta occurred in August 2021 at 107.21 or 107.2, while the lowest CPI in Yogyakarta occurred in April 2020 at 105.15 or 105.2. The average CPI in Yogyakarta per month is 106.1. The Mean Absolute Percentage Error (MAPE) value obtained from the DES method is 0.1308443%, so that the accuracy of the model is 99.869%. Forecasting with the DES method is quite well used in forecasting the CPI data of Yogyakarta in September 2020 - November 2021. The results of CPI forecasting in Yogyakarta using the DES method were 107.2602, 107.3104, and 107.3606 from September-November.
CLUSTERING OF PROVINCE IN INDONESIA BASED ON AQUACULTURE PRODUCTIVITY USING AVERAGE LINKAGE METHOD
Authors: Putera Fachruddin Hari Anggara , Mangitung Septina F. , Madinawati  , Handayani Lilies
Published: December 2021

Fisheries are one of the agricultural sub-sectors that play an important role in contributing to income figures for the state and the region because most of Indonesia's territory is water so that the fisheries sector is a sub-sector that is feasible to be developed in this country, one of which is through aquaculture. One of the efforts that can increase and maintain productivity in the aquaculture sector is to classify provinces that produce aquaculture production into groups based on the similarity of characteristics possessed by each province in Indonesia. In this study, clustering was carried out using cluster analysis using the average linkage method and based on the analysis results obtained showed that cluster 1 consists of 25 provinces, cluster 2 consists of 5 provinces, cluster 3 consists of 2 provinces, cluster 4 consists of 1 province, and cluster 5 consists of 1 province with a standard deviation value within a cluster of 11,729 and a standard deviation between clusters of 118,745.
Pembuatan Konsentrat Protein Ampas Kelapa (Cocos nucifera L.) Bebas Lemak pada Berbagai Konsentrasi NaOH
Authors: Kasio Ulayya , Bahri Syaiful , Sosidi Husain , Khairuddin  , Sumarni Ni Ketut , Ridhay Ahmad
Published: December 2021

Coconut pulp contains up to 18.2% protein which is one of the wastes from coconut oil processing. Protein from coconut pulp can be used in the manufacture of protein concentrates which are widely used in the food industry. The purpose of this research is to determine the concentration of NaOH that can produce the yield and protein content of coconut pulp protein concentrate. Coconut pulp protein was extracted with NaOH at various concentrations of 0.5, 1, 1.5, 2, and 2.5 M, then continued with salting out using salt (NH4)2SO4 with a saturation of 65%. The crude protein content of coconut pulp protein concentrate was determined by the Kjeldahl method. The results showed that the use of 0.5 M NaOH resulted in the highest protein content of coconut pulp protein concentrate, which was 71.30% with a yield of 14.42%.
Analisis Metabolit Sekunder dan Aktivitas Ekstrak Etanol Kulit Buah Salak (Salacca zalacca (Gaertn.) Voss) Terhadap Kadar Glukosa dan Ureum Kreatinin Tikus Putih Jantan (Rattus norvegicus)
Authors: Handayani Tien Wahyu , Widodo Agustinus , Yanti Risna , Prasetyo Erdy , Zulfaidah  , Tandi Joni
Published: December 2021

The snake fruit peel (Salacca zalacca (Gaertn.) Voss) traditionally has several health benefits, one of which is to treat diabetes mellitus. This study aimed to determine the content of secondary metabolites in the ethanolic extract of snake fruit peel and its activity on glucose and urea creatinine levels in male white rats (Rattus norvegicus). Phytochemical screening of extracts was carried out qualitatively and quantitatively using UV-Vis Spectrophotometry. This study is a laboratory experimental study using 30 test animals divided into 6 treatment groups (normal control, negative control, positive control, 70 mg/kg BW, 140 mg/kg BW, and 280 mg/kg BW). The results showed that the ethanol extract of the bark of the salak fruit contained 7.61 %w/w alkaloids, flavonoids 0.041% w/w, tannins 1.18% w/w, and saponins 2% w/w. Ethanol extract of salak fruit peel dose of 140 mg/kg BW affected decreasing blood glucose and urea creatinine levels. The skin of the salak fruit has the potential to be further investigated as an antidiabetic.
Pengaruh Waktu Hidrotermal terhadap Karakteristik Zeolite Socony Mobile-5 (ZSM-5) Tanpa Template Menggunakan Reaktor Autoclave
Authors: Mukhtar Ghozali  , Gamaliel Tanaka  , Muhammad Misbahussalam  , Paramitha Tifa
Published: December 2021

ZSM-5 is a synthetic zeolite which has a complex production process and is affected by operating conditions, such as temperature and time. In this study, synthesized ZSM-5 without template by hydrothermal method. An autoclave reactor was used for the hydrothermal process. The aim of this study was to investigate the effect of varied hydrothermal times of 24 and 48 hours with a hydrothermal temperature of 180oC on the characteristic of ZSM-5. The raw materials used were silica oxide and aluminum hydroxide as a source of silica and alumina. The synthesis results were characterized using X-Ray Diffraction (XRD). Based on XRD results, the best result was obtained in performed at 48 hours hydrothermal time indicating the formation of ZSM-5 material at the 22.2o position. The percentage crystallinity of the sample at the hydrothermal time of 48 hours was 51.3%.
Analisis Termodinamika dan Kinetika Nanopartikel Karbon (C-Dot) dari Buah Durian Sebagai Inhibitor Korosi Tembaga
Authors: Anindita Faradisa , Darmawan Noviyan , Mas'ud Zainal Alim
Published: December 2021

Corrosion is a physical interaction between the metal and its environment, which results in changes in the metal's properties due to chemical or electrochemical reactions. The corrosion rate can be reduced by adding a corrosion inhibitor. Uses of nanotechnology for corrosion prevention is one of the first technical because almost made structures rely on the stability of a 1–2 nm thick passive film which provides stability to the underlying material. Herein we report the thermodynamic and kinetic analysis of carbon-dots from Durian as inhibitor copper corrosion. To test the anticorrosive performance and analyze thermodynamic properties in its role as a corrosion inhibitor on copper using potentiodynamic polarization. The thermodynamic-kinetic parameters of corrosion obtained values of H‡ = 60.44 kJmol-1, ΔS‡ = -73.9 kJmol-1, and ΔG‡ = 82.83 kJmol-1, show that the attendance of C-dot as a corrosion inhibitor causes a non-spontaneous reaction rate to be proven by increasing spontaneity (ΔG‡). The value of activation energy samples was higher than the blank, indicates the presence of C-dot effective to reduce the rate of corrosion of the metal.
Analisis Fitokimia Air Rebusan Daun Mantalalu (Euphorbia hirta L) Asal Kota Palu Provinsi Sulawesi Tengah
Authors: Asniati  , Muthmainnah
Published: December 2021

One of the herbal plants that have long been used as traditional herbal medicine by Central Sulawesi peoples is Mantalalu (Euphorbia hirta L). Central Sulawesi peoples used this Mantalalu to appendicitis medicine. The chemical compound contained in Mantalalu plant has a role in providing different pharmacology. A study was conducted about the chemical compound content Mantalalu plant (Euphorbia hirta L). The method of this research was boiling dried leave and wet leave of Mantalalu plant and phytochemical test including flavonoids tests, alkaloids tests, saponins tests, polyphenol, and tannin tests. The results of this research showed that the decoction of dried and wet leaf samples of Mantalalu plant contained flavonoid, polyphenol, tannin, and saponins bioactive compounds.
A retrospective observational study to estimate use of biomarkers to predict severity of community acquired pneumonia in children
Authors: Bashir Anam , Khan Raheel , Thompson Stephanie , Caceres Manuel
Published: December 2021

Purpose: Multiple studies have investigated the role of biomarkers in
predicting pneumonia severity in adults but minimal research exists for
children. The aim of this study was to determine if the following
biomarkers: white blood cell count (WBC), platelet count, C-reactive
protein (CRP), procalcitonin (PCT), neutrophil-lymphocyte ratio,
neutrophil count, or band count predict community associated pneumonia
(CAP) severity in children. Methods: A retrospective chart review was
conducted on pediatric patients (aged 60 days to 18 years) diagnosed
with CAP, admitted to a regional, tertiary hospital. Patients were
stratified into two severity cohorts, mild (no ICU care), and moderate
/severe (required ICU care). Biomarker values were then compared between
the severity cohorts and area under the curve (AUC), cut-off values,
performance characteristics were calculated. Results: A total of 108
patients met inclusion criteria. Among the biomarkers examined, elevated
levels of CRP (51.7 mg/L in mild vs. 104.8 mg/L in moderate/severe, p =
0.003, PCT (0.29 ng/ml in mild vs. 4.02 ng/ml in moderate/severe, p =
0.001) and band counts (8% in mild vs. 15% moderate/severe, p = 0.009)
were associated with increased pneumonia severity. In predicting
moderate/severe CAP, PCT had the highest AUC of 0.77 (p = 0.001)
followed by bands AUC of 0.69 (p = 0.009) and CRP AUC of 0.67 (p =
0.003). The cut-off for PCT of 0.55ng/ml had a sensitivity of 83% and a
specificity of 65%. A cut-off level of 53.1 mg/L for CRP had a
sensitivity of 79% and specificity of 52%. A cut off level of 12.5%
bands had a sensitivity of 61% and specificity of 71%. Conclusion:
Biomarkers, in particular PCT, obtained early in hospitalization appear
to perform as predictors for CAP severity in children and may be
beneficial in guiding CAP management
Diversity and emergence of new variants of African swine fever virus Genotype I circulating in domestic pigs in Nigeria (2016-2018)
Authors: Adedeji Adeyinka , Jambol Anvou , Weka R. , V.B. Muwanika , Luka Pam , Masembe Charles
Published: December 2021

African swine fever (ASF) is the most lethal disease of pigs caused by
ASF virus (ASFV) with severe economic implications and threat to food
security in endemic countries. Between 2016 and 2018, several ASF
outbreaks were reported throughout pig producing States in Nigeria. This
study was designed to identify the ASFV genotypes responsible for these
outbreaks and the transmission pathways of the virus during this period.
Twenty-two ASFV-positive samples collected during passive surveillance
in eight States of Nigeria were characterized using 3 partial genes
sequences of the virus. The genes were: p72 capsid protein of the
B646L, p54 envelope protein of E183L, and the
central variable region (CVR) within B602L of ASFV. Phylogenetic
analysis based on p72 and p54 revealed ASFV genotype I as
the circulating virus. Sequence analysis of the CVR of B602L
revealed genetic variations with six ASFV variants namely: Tet-15,
Tet-20a, Tet-21b, Tet-27, Tet-31 and Tet-34, thus increasing the overall
genetic diversity of ASFV in Nigeria. Three of these variants: Tet-21b,
Tet-31 and Tet-34 were identified for the first time in Nigeria. The new
variants of ASFV genotype I were identified in the States of Enugu, Imo,
Plateau and Taraba, while co-circulation of multiple variants of ASFV
genotype I were recorded in Plateau and Benue States. The high genetic
diversity, emergence and increasing recovery of new variants of genotype
I in Nigeria should be a concern given that ASFV is a relatively stable
DNA virus. The epidemiological implications of these findings require
further investigation.
Evaluation of the economic impact of classical and African swine fever epidemics using OutCosT, a new spreadsheet-based tool
Authors: Casal Jordi , TagoPacheco Damian , Pineda Pilar , Tabakovsky Blagojco , Santos Imelda , Benigno Carolyn , Huynh Tran , Ciaravino Giovanna , Beltrán-Alcrudo Daniel
Published: December 2021

African swine fever (ASF) and classical swine fever (CSF) are two major
transboundary animal diseases of swine with important socioeconomic
consequences at farm, subnational and national level. The objective of
this study was to evaluate the direct cost of outbreaks and their
control at country/regional level in four countries: namely CSF in
Colombia in 2015-2016, the retrospective cost of ASF in the Philippines
in 2019 and in a province of Vietnam in 2020, and a hypothetical ASF
scenario in one region in North Macedonia, using the newly developed
Outbreak Costing Tool (OutCosT). The tool calculates the costs of 106
different items, broken down by up to four types of farms, and by who
assumes the cost (whether veterinary services, farmers or other
stakeholders). The total cost of CSF in Colombia was US$ 3.8 million of
which 88% represented the cost of the vaccination campaign. For ASF,
there were wide differences between countries: US$ 826,911 in Lao Cai
(Vietnam), US$ 3,319,666 in North Macedonia and over US$ 58 million in
the Philippines. While in the Philippines and Vietnam, 96-98% of the
cost occurred in the affected farms, the highest expenditure in North
Macedonia scenario was the movement control of the neighbouring and
at-risk farms (77%). These important differences between countries
depend on the spread of the disease, but also on the production systems
affected and the measures applied. Apart from the financial cost, these
diseases have other negative impacts, especially in the livelihoods of
smallholder farms. The OutCosT tool also allows users to evaluate
qualitatively other important aspects related to the epidemics, such as
the impact on human health, the environment, animal welfare,
socio-economic vulnerability, trading and political response. The main
purpose of the OutCosT, which will become a FAO corporate tool, is to
support country authorities to rapidly respond to ASF outbreaks by
estimating the associated costs, and for advocacy purposes to mobilize
resources at national or international levels.
Reference ranges of AMH in early pregnancy: the Generation R Study, a population-based prospective cohort study
Authors: Dykgraaf Ramon , Laven Joop , Timmermans Sarah , Adank Maria , Berg Sjoerd van den , Born Brigitta van de Lang - , Korevaar T I M , Kumar Ajay , Kalra Bhanu , Savjani Gopal , Steegers Eric , Louwers Yvonne
Published: December 2021

Objective: The objective of this study is to establish maternal
reference values of AMH in a fertile multi-ethnic urban pregnant
population and to evaluate the effect of gestational age. Design: The
Generation R Study is an ongoing population-based prospective cohort
study from early pregnancy onwards. Setting: Rotterdam, the Netherlands,
out of hospital setting. Population: In 5806 women serum AMH levels were
determined in early pregnancy (median 13.5 weeks; 95% range 10.5-17.2).
Methods: The model-based AMH reference ranges for maternal age and
gestational age were created using GAMLSS. Associations between AMH and
several first trimester biomarkers were analyzed using multivariate
linear regression analyses. Main outcome measures: AMH levels in early
pregnancy and the association with placental biomarkers, hCG, sFLT, and
PLGF. Results: A nomogram of AMH in early pregnancy was developed. Serum
AMH levels showed a decline with advancing gestational age. Higher AMH
levels were associated with a higher level of hCG and sFLT. This last
association was predominantly mediated by hCG. AMH levels were
negatively associated with PLGF levels. Conclusion: In this large study
we show that AMH levels in the first trimester decrease with advancing
gestational age. The association between AMH and the placental
biomarkers hCG, sFLT and PLGF suggests a better placental development
with a lower vascular resistance in mothers with higher AMH levels. AMH
might be useful in predicting adverse pregnancy outcome due to impaired
placental development. Keywords: Ovarian reserve, placental biomarker,
nomogram, first trimester, human Choriogonadotrophin (hCG), soluble
FMS-Like Tyrosine kinase-1 (sFLT), Placental Growth Factor (PLGF).
Short-term results of percutaneous closure of patent foramen ovale guided by transoesophageal echocardiography in patients with cryptogenic stroke: A retrospective study
Authors: Guo Yilong , Shi Zhensu , Zheng Yin , Xie Caichan , Yi Jiao , Chen Zelun , Shu Yue , Zhou Dexing
Published: December 2021

Background: This study aimed to assess the short-term (12
months) results of PFO occlusion guided by transoesophageal
echocardiography (TEE) and the results of regular transthoracic
ultrasound foaming test (UFT). Methods: Data of 75 patients who
underwent interventional therapy for PFO and CS were retrospectively
analysed. The patients were grouped according to their preoperative UFT
results: group A, small volume of right-to-left shunts; group B,
moderate volume of right-to-left shunts; and group C, large volume of
right-to-left shunts. All patients were treated with an Amplatzer
occluder under TEE guidance. UFT follow-up was conducted regularly until
12 months after surgery. Results: No remarkable differences in
preoperative data, length of hospital stay, or operative time were noted
between the groups. Length of the PFO and diameter of the occluder
differed between the groups: group A=group Bp<0.001). One
patient in group C developed recurrent stroke 11 months postoperatively.
Two patients in group C developed atrial arrhythmia, which improved
after 3 months of antiarrhythmic treatment. However, 19 patients still
had positive UFT results 12 months postoperatively. Furthermore, the
positive UFT rate 12 months postoperatively differed between the groups:
group A=group Bp<0.05). Conclusions: In patients with
PFO and CS, interventional therapy guided by TEE could lead to
satisfactory short-term (12 months) outcomes. A longer PFO and
preoperative large-volume shunt were negatively associated with a
negative UFT rate 12 months postoperatively. Further studies are
required to clarify the relationship between positive UFT results
postoperatively and stroke recurrence.
The improvement of SOC sequestration mediated by soil structure in the greenhouse vegetable soil converted from paddy field
Authors: Shi Yijie , Wang Meiyan , Yao Tongyan , Xu Lingying , Shi Xuezheng
Published: December 2021

Objective of investigation: Land use conversion strongly alters soil
structure and substantially affects soil organic carbon (SOC)
sequestration. Changing from an anaerobic paddy field (PF) to a dry land
easily causes SOC loss due to stimulation of C decomposition. However,
no evidence of SOC loss from PF to intensive vegetable cultivation has
been certainly presented. Experimental material: This study was
conducted on the long-term cultivated open-field vegetable (OFV) and
greenhouse vegetable (GHV) planting area converted from old PF in China.
Undisturbed soil cores, natural structured soil, and disturbed soil from
top soil layers were using for further analyses. Methods of
investigation: To comprehensively investigate SOC and soil structure
change in the land use conversion of PF to OFV and PF to GHV, we used
13C-CPMAS NMR spectroscopy to classify the SOC fractions. The soil
macropores (> 50 μm) was valued by X-ray computed
tomography, and soil aggregates distribution was determined by wet
sieving method. Data collection: Data were obtained from the
above-mentioned measurements and statistically analyzed in R. Results:
The result showed that the SOC stock increased 1-fold from PF to GHV.
SOC stability increased with recalcitrant C (aromatic-C and carbonyl-C)
raised by 21 %–27 % in GHV bulk soil. Both macropores and
macroaggregates (> 250 μm) increased in GHV, accompanied by
an accumulation of recalcitrant C in large macroaggregates. Conclusions:
we confirmed the expanded GHV cultivation sequestered more belowground
SOC than PF, associated with the amplified physical protection by
enhancing soil aggregation and by redistributing of soil macropores.
Coronavirus 19 (COVID-19) infection and vaccination in patients with Shwachman-Diamond syndrome
Authors: Galletta Thomas , Loveless Sara , Malsch Maggie , Shimamura Akiko , Myers Kasiani
Published: December 2021

Because they can experience neutropenia due to bone marrow failure,
patients with Shwachman-Diamond syndrome (SDS) carry increased risk for
serious infections compared to the general population; however, it has
been unknown whether this predisposes them to COVID-19 infection or more
significant complications. We compiled results from a survey distributed
to participants in the Shwachman-Diamond Syndrome Registry between May
and June 2021. In this report we describe the characteristics and
outcomes of patients with SDS who had COVID-19. Patients reported a
short clinical course without significant complications or severe
cytopenias. Additionally, COVID-19 vaccines were well tolerated with
only minor side effects.
Thyroid Cancer In Children: A Multicenter International Study Highlighting Clinical Features And Surgical Outcomes Of Primary And Secondary Tumors
Authors: Martucci Cristina , Crocoli Alessandro , Pasquale Maria Debora De , Spinelli Claudio , Strambi Silvia , Brazzarola Paolo , Morelli Eleonora , Cassiani Jessica , MANCERA JULIANA , Luengas Juan , Lobos Pablo , Liberto Daniel , Astori Estefanìa , Sarnacki Sabine , Couloigner Vincent , Simon François , Lambert Cassandre , Abib Simone , Cervantes Onivaldo , Caran Eliana , Lindman Diana Delgado , Jones Matthew , Shukla Rajeev , Losty Paul , Inserra Alessandro
Published: December 2021

Background: Thyroid gland malignancy is rare in pediatrics (0.7% of
tumors); only 1.8% are observed in patients < 20 yrs with a
higher prevalence recorded in females and adolescents. Risk factors
include genetic syndromes - MEN disorders, autoimmune disease and
ionizing radiation exposure. Radiotherapy is also linked with increased
risk of secondary thyroid cancers. The present study describes the
clinical features and surgical outcomes of primary and secondary thyroid
tumors. Methods: Institutional data was collected on pediatric patients
with thyroid cancer during 2000 - 2020 from 8 International Surgical
Oncology centers. Statistical analysis was performed using GraphPad
Prism. Results: Of 255 cases of thyroid cancer, only 13 (5.1%) were
secondary tumors. Primary thyroid malignancies were more likely to be
multifocal in origin (odds ratio [OR] 1.993, 95% confidence
interval [CI] 0.7466-5.132, p 0.2323), had bilateral glandular
location (OR 2.847, 95% CI 0.6835-12.68, p 0.2648) and proved
metastatic at 1st diagnosis (OR 1.259, 95% CI 0.3267-5.696
p>0.999). Secondary tumors showed a higher incidence of
disease relapse (OR 1.556, 95% CI 0.4579-5.57, p 0.4525) and surgical
morbidity (OR 2.042, 95% CI 0.7917-5.221, p 0.1614) including
hypoparathyroidism and recurrent laryngeal nerve injury. Overall
survival (OS) was 99% at 1 year and 97% after 10 years. No EFS
differences were evident with primary vs. secondary tumors (Chi square
0.7307, p 0.39026). Conclusions: This multicenter study demonstrates
excellent survival for pediatric thyroid malignancy. Secondary tumors
exhibit greater disease relapse (15.8% vs 10.5%) and a higher
incidence of surgical related complications (36.8% vs 22.2%).
Microstructure and mechanical properties of A7N01 aluminum alloy weld joints filled with ER5356 and ER5087 weld wires
Authors: Xie H. , Hu L. , Ma Q.-H. , Meng W. , Yin X.-H.
Published: December 2021

The A7N01-T5 aluminum alloy plates with the thickness of 12 mm were welded with the ER5356 and ER5087 welding wires, respectively, by the method of Metal Inert Gas (MIG) welding. The mechanical properties and microstructures of the welded joints were investigated by micro-hardness measurement, tensile test, energy dispersive spectroscopy (EDS), electron backscattered diffraction (EBSD) and transmission electron microscopy (TEM). The results showed that the tensile strength and elongation of 7N01/5087 welded joint (the 7N01 aluminum alloy plate welded with ER5087 wire) were greater than those of 7N01/5356 welded joint (the 7N01 aluminum alloy plate welded with ER5356 wires), respectively. The high strength and the good elongation of 7N01/5087 welded joint were mainly attributed to the microstructure refinement in the weld zone through adding Zr element to promote the nucleation of Al grains around the Al3Zr sites.
Investigation of transient and steady heat transfer in saturated porous medium filled in a vertical cylinder with thermal dispersion and radiation
Authors: Abu Shaban Nabeel , Manasrah Ahmad , Nasser Ibraheem
Published: December 2021

In this study, the influence of thermal radiation and dispersion on a porous medium which was filled in a vertical cylinder was numerically solved. A finite-difference method was used to solve the non-dimensional equations by applying a Crank-Nicolson implicit numerical technique. Moreover, an experimental set-up has been initially built to investigate the effect of three different grain sizes of the porous materials on the heat transfer process. The numerical results indicated that the thermal radiation increased the momentum and the thickness of the thermal boundary-layer during the natural-convection heat transfer process. Whereas, the thermal dispersion factor decreased the momentum and the thickness of the boundary-layer during the natural-convection heat transfer process, which enabled a steady and transient heat transfer. The experimental results indicated that the pore size of the medium significantly affected the rate of the heat transfer process. A smaller pore size showed a greater effect and could be used in different applications that involve a higher heat transfer rate, while a larger pore size can potentially be used as an insulating material.
Temperature effect on thermal-hydraulic performance of one-pass counter-current flow shell-and-tube heat exchanger and upon its design
Authors: Elouardi Elmokhtar , Yatim Fatima , Chehouani Hassan
Published: December 2021

A methodology of design and analysis of thermal-hydraulic performance for a single pass 1-1 counter-current flow shell and tube heat exchanger (CCFSTHE) TEMA E-type has been established. The temperature effect on the thermo-physical properties of flowing fluids and on the overall coefficient of heat transfer along the heat exchanger is incorporated in our approach, as well as the coupling between different thermal and hydraulic parameters. It has been noted that the correction factor (F) in the HAUSBRAND formula is not included. Our method brings us to a new dimensionless quantity (MKA) which links the calculation parameters of the heat exchanger to the thermo-physical properties. This dimensionless quantity relates the number of transfer units to the heat flow ratio, R. The results based on our models show a pronounced deviation compared to the model reported in the literature (number of transfer units method). This deviation may be related to a temperature effect not included in the literature model. It has been shown that the results derived from our models are in a good agreement with experimental data. Our new method, named MKA - method, could be a useful tool for theoretical and experimental studies of the design and analysis of the single pass 1-1 CCFSTHE thermal and hydraulic performance for 0 ? R ?1.