bluuebunny/crossref_metadata_2025_split huggingface dataset:
Behaviour of a Non-Newtonian Fluid in a Helical Tube Under the Influence of Thermal Buoyancy
Authors: Ramla Mohamed , Laidoudi Houssem , Bouzit Mohamed 
Published: March 2022

Abstract
This work is an evaluative study of heat transfer in the helical-type heat exchanger. The fluid used is non-Newtonian in nature and is defined by Oswald’s model. The work was performed numerically by solving each of the Navier–Stokes equations and the energy equation using the package ANSYS-CFX. Following are the aspects that have been dealt with in this paper: the effects of thermal buoyancy, fluid nature and the tube shape on the heat transfer, and the fluid comportment. The interpretation of the obtained results was done by analyzing the isotherms and the streamlines. The mean values of the Nusselt number were also obtained in terms of the studied parameters. The results of this research enabled us to arrive at the following conclusion: the intensity of thermal buoyancy and the nature of the fluid affect the heat transfer distribution but keep the overall rate of heat transfer the same.
Performance Evaluation of a Single Cylinder Compressed Air Engine: An Experimental Study
Authors: Hanan Ahmad , Feroze Tariq , Arif Awais , Iftikhar Hasan , Khan Afzaal A. , Javaid Sarmad 
Published: March 2022

Abstract
The quest to reduce dangerous environmental emissions has led to the research and use of alternate and renewable energy sources. One of the major contributors to the dangerous environmental emissions is the automotive industry. The world is, therefore, quickly moving towards hybrid and electric vehicles. An alternate pollution-free automotive engine is a compressed-air engine, which is powered by compressed air and is more efficient than the electric engine since it requires less charging time than a traditional battery-operated engine. Furthermore, the tanks used in compressed-air engines have a longer lifespan in comparison to the batteries used in electric vehicles. However, extensive research is required to make this engine viable for commercial use. The current study is a step forward in this direction and shows the performance analysis of a single-cylinder compressed-air engine, developed from a four-stroke, single-cylinder, 70 cc gasoline engine. The results show that compressed-air engines are economic, environmental friendly and efficient.
Assessments under the United Nations Sustainable Development Goals: A Bibliometric Analysis
Authors: Londoño-Pineda Abraham Allec , Cano Jose Alejandro 
Published: March 2022

Abstract
The United Nations announced its 2030 Agenda for Sustainable Development worldwide in 2015. Comprehensive assessments of member states’ performance towards achieving the related UN Sustainable Development Goals (SDGs) have since become a major challenge for national and subnational governments. This article presents a bibliometric analysis on the assessment of SDGs, at both the general and specific levels, based on 418 publications obtained from Scopus. The general level of analysis includes the number, types, and subject areas of documents published each year, as well as considerations such as the most-cited publications and the leading authors, journals, countries, institutional affiliations, and funders. The specific level of analysis includes a study of the relevant concepts in the publications and their relationships, allowing for the identification of predominant assessments under the 2030 Agenda, and of the most-often evaluated SDGs. Results indicated a focus on measuring impacts and risks, with SDGs 3, 6, 13, 7, 8, and 4 having been assessed the most often among the 17 SDGs, which is consistent with findings in prevalent subject areas such as environmental sciences, social sciences, medicine, and energy. Future works should address assessments under the 2030 Agenda more comprehensively, including analyses on trade-offs among the SDGs and on the transversal nature of some of these goals.
Pré-registro de estudos na linguística experimental
Authors: Bin Pedro Ricardo , Mota Mailce Borges 
Published: March 2022

A linguística e suas subáreas apresentam diferentes metodologias para pesquisar a capacidade humana para linguagem. Nesse sentido, linguistas têm dedicado esforços para compreender como a área pode fortalecer ainda mais o rigor de suas investigações e a robustez de seus resultados a partir das proposições e reivindicações da ciência aberta. A ciência aberta surge no recente cenário da chamada crise na confiabilidade e reprodutibilidade das investigações científicas. Esse cenário tem promovido intensos debates na comunidade científica com o intuito de contornar a crise de confiabilidade e adotar práticas científicas que fortaleçam a reprodutibilidade de estudos. Um exemplo de prática que pode ser adotada para fortalecer a reprodutibilidade da pesquisa científica é o pré-registro de estudos. Nossos objetivos neste trabalho são (i) discutir como a prática de pré-registro de estudos surge no contexto da ciência aberta, (ii) apresentar o que é o pré-registro de estudos e explicar porque ele deve ser feito, (iii) sugerir como ele pode ser feito e, por fim, (iv) argumentar como essa prática pode fortalecer o rigor e a reprodutibilidade da pesquisa na linguística experimental.
Editorial
Authors: Zeta de Pozo Rosa 
Published: March 2022

La investigación científica toma el pulso de la pandemia global de la Covid 19, e indica que este proceso sigue evolucionando, mientras, la investigación en comunicación está inmersa en un entorno complejo de adaptación, transformación e innovación, camino a la endemia global. Y en ese caminar, la comunicación es cada vez más multidimensional, dinámica, flexible, digital, y atenta a los cambios que se generan en la producción de contenidos, su distribución y el consumo de los mismos, ante las necesidades informativas y de entretenimiento de las audiencias, en una sociedad cada vez más globalizada.
Perbandingn Hidrolisis Ubi Nagara (Ipomea batatas L) Menggunakan Metode Asam-Enzim Dan Enzim-Enzim
Authors: Maharani Dessy Maulidya , Khamidah Noor 
Published: March 2022

Abstak. Ubi nagara (Ipomea batatas L) merupakan tanaman lokal yang mengandung pati sebesar 45 sampai 70 % dan serat. Oleh karenanya cocok digunakan untuk bahan baku bioetanol. Untuk membuatnya ubi tersebut harus dihidrolisis terlebih dahulu. Hidrolisis tersebut dapat dilakukan dengan metode hidrolisis asam dan enzim. Permasalahan nya adalah belum diketahui Perbandingan proses hidrolisis menggunakan Metode Asam-Enzim dan Enzim-enzima. Untuk itu perlu dilakukan perbandingan dua metode tersebut dalam menghidrolisis ubi nagara. Lingkup penelitian dimulai dari karakterisasi ubi dan hidrolisat yang dihasilkan. Pada penelitian ini dua klon ubi nagara berkulit kuning dan merah telah dikarakterisasi. Pada proses tersebut didapat hasil kadar air, selulosa, hemiselulosa, lignin dan pati ubi kulit kuning berturut-turut sebesar 63,45 % ± 0,69 %, 6,90 %, 5,71 %, 0,85 % dan 56,07 % ± 0,06. Pada ubi kulit merah sebesar 59,04 % ± 0,29, 3,45 %, 3,82 %, 0,85 % dan 53,33 % ± 0,19. Klon yang memiliki kadar pati tertinggi digunakan untuk bahan baku proses hidrolisis. Proses hidrolisis yang digunakan adalah hidrolisis asam-enzim dan hidrolisis enzim-enzim. Hidrolisis asam-enzim menunjukkan hasil terbaik dengan kadar gula sebesar 19,75 % ± 1,06, pH saat liquifikasi 4,47 ± 0,028 dan rendemen filtrat sebesar 70,40 % ± 0,06 Abstract. Nagara sweet potatoes (Ipomea batatas L)as a local plant has variety clone. These plants contain 45 % to 70 % starch and fiber. Therefor this plant suitable as Bioethanol material. Hydrolysis process needed to transform this material. This process used Enzyme method and Acid method or mixed. The problem is unknowing of best hydrolysis method. The scope of research is the characterization of sweet potato and hydrolyzate produced. There for necessary to determine the water contain, cellulose, hemicellulose, lignin and starch contain of this plant. The result of Characterization showed that the sweet potatoes yellow peel containing 63,45 % ± 0,69 water, 6,90% cellulose, 5,71 % Hemicellulos, 0,85% Lignin and 56,07 % ± 0,06 starch. Sweet potatoes red peel containing 59,04 % ± 0,29 water, 3,45 % cellulose, 3,82 % hemicellulose, 0,85 % lignin and 53,33 % ± 0,19 starch. The highest result of starch used as material of hydrolysis. This research used acid-enzyme and enzyme-enzyme hydrolysis. Acid-enzyme hydrolysate showed the best result which are containing 19,75 %± 1,06 sugar with 4,47 ± 0,028 liquefication pH and 70,40 % ± 0,06 filtrate yield.
Analisis Pengolahan Limbah Padat Tahu Terhadap Alternatif Industri Pangan Sosis (Grade B)
Authors: Sina Ibnu , Harwanto Untung Nugroho , Mubarok Zakki Rosmi 
Published: March 2022

Literature studies show that the nutrient content in tofu pulp is still high; however the utilization of this waste is still relatively low by the community. Nowadays, tofu dregs is still widely used as an ingredient for animal feed. Some of the reasons why people don't take advantage of tofu waste are consits of the funding, equipment, time and worries related to starting their own business. The aims of this study is to make a pre-designed tofu dregs processing plant into a multipurpose product aggregate such as sausages driven by the tofu business community. The method stage in this research is making a feasible product and process scheme, analyzing tofu solid waste in the form of a paper project and making a household scale sausage production prototype. The results of this study are able to produce a role model for tofu dregs utilization which is more conomically valuable but still meet the standard and quality of reasonableness. The results of the role model will be disseminated by reaching out to tofu entrepreneur communities to collaborate with each other so that the utilization of tofu with high economic value can be carried out more massively, structurally and systematically.
Analisis Pedapatan Petani Karet Pada Era Newa Normal Di Prabumulih
Authors: Rikie Dekas Rikie Rikie 
Published: March 2022

Karet merupakan perkebunan yang sangat membantu dan dikembangkan oleh masyarakat Prabumulih. Namun permasalahan yang terjadi saat ini, harga karet yang kurang stabil dan cenderung menurun menjadi penyebab masyarakat banyak yang menderita akibat menurunnya harga getah karet. Tujuan penelitian ini adalah untuk menganalisis pendapatan petani karet pada era new normal di Prabumulih. Dalam penelitian ini peneliti menggunakan metode penelitian deskriptif kualitatif. Peneliti memahami penelitian ini hanya sebatas menelaah sumber yang dikaji dalam penelitian ini. Dalam menganalisis data penelitian ini, peneliti menggunakan sumber dari jurnal ilmiah, buku, dan didukung dengan pengamatan langsung yang dikembangkan menjadi sebuah tulisan ilmiah untuk dikaji secara baik dan dapat digunakan dalam penelitian selanjutnya. Hasil dan pembahasan dalam penelitian ini terdiri dari, yaitu: melihat kondisi petani karet Summatera Selatan saat ini. Para petani karet di Sumatera Selatan saat ini mengalami masa yang sulit dengan menurunnya harga getah karet. Dampak tersebut dikarenakan getah karet di Indonesia khususnya Sumatera Selatan memiliki masa kualitas yang dinilai dibawah rata-rata. Maka untuk meningkatkan kualitas tersebut, para petani karet di Sumatera Selatan meningkatkan produksi getah karetnya dan menghindari kecurangan yang merugikan petani karet lainnya. Sedangkan pembahasan lainnya adalah analisis pendapatan petani karet pada era newa normal di Prabumulih, yaitu umumnya masyarakat Prabumulih yang mengandalkan getah karet sebagai penunjang hidupnya mulai mengalami kesulitan dan desakan ekonomi yang turun. Perkebunan karet yang dikembangkan para petani umumnya bukan miliknya pribadi, namun hanya bekerja kepada masyarakat yang memang memiliki perkebunan karet tersebut. Untuk menunjang perekonomian kelurganya, masyarakat mulai melakukan pekerjaan sampingan untuk mencukupi kebutuhan hidupnya. Peran pemerintah dalam meningkatan harga karet sangat penting sekali. Berbagai inovasi yang mampu mengangkat harga getah karet sangat dinantikan masyarakat Prabumulih. Simpulannya: Kerjasama antara pemerintah dan masyarakat sangat menetukan kehidupan masyarakat petani karet. Kesejahteraan petani karet perlu ditingkatkan dengan mencari solusi terhadap menurunnya harga getah karet.
Propuesta metodológica para el trabajo colaborativo en autoevaluaciones de acreditación utilizando herramientas digitales
Authors: Méndez Ortiz J.R. , Cruz Landa A.J. , Reyes Flores I.A. , Romero Arrioja I.E. 
Published: March 2022

El proceso de autoevaluación y evaluación de una institución educativa, por parte de un organismo acreditador, implica que un grupo de académicos, directivos, administrativos y personal de apoyo trabajen de forma colaborativa para el logro de los objetivos, sin embargo, este trabajo debe ser organizado por un pequeño grupo de personas, una comisión de acreditación o un coordinador general, por lo que en este artículo se presenta una propuesta metodológica para la división y organización de las actividades involucradas, así como de los roles de los que conforman la comisión. Así mismo, considerando que una de las principales tareas durante el proceso de autoevaluación es la recopilación de información conformada por una gran cantidad de documentos físicos, carpetas, archivos y documentos aislados, se sugieren algunas herramientas digitales para que esta actividad implique un menor esfuerzo y una mayor organización, además de tener mayor transparencia y colaboración.
The process of self-evaluation and evaluation of an educational institution, by an accrediting institute, implies that a group of academics, managers, administrative staff and support staff work collaboratively to achieve the objectives, however, this work must be organized by a small group of people, an accreditation commission or a general coordinator, so this article presents a methodological proposal for the division and organization of the activities involved, as well as the roles of those who make up the commission. Likewise, considering that one of the main tasks during the self-assessment process is the collection of information consisting of a large number of physical documents, folders, files and isolated documents, some digital tools are suggested so that this activity involves less effort and a greater organization, in addition to having greater transparency and collaboration.
Penerapan Pendekatan Arsitektur Edukatif pada Perancangan Petroleum Museum di Pekanbaru
Authors: Rita Ega Nova , Firzal Yohannes , Susilawaty Mira Dharma 
Published: March 2022

Petroleum sebagai bahan bakar yang bersumber dari fosil yang secara alami menghasilkan sedimen organik fasa cair berupa minyak bumi dan fasa gas berupa gas alam, serta sedimen. Riau dikenal sebagai produsen minyak dan gas terbesar di Indonesia dengan area kerja yang tersebar pada beberapa kabupaten. Dengan pengaruh yang sangat besar bagi industri minyak dan gas ini, maka dari itu diperlukan museum sebagai tempat untuk menyimpan sejarah perkembangan dan penambangan petroleum di Pekanbaru sebagai ibukota provinsi. Museum adalah sebuah institusi yang mengumpulkan, mengarsipkan, melindungi, memamerkan, menafsirkan bukti materil dan menjelaskan informasi yang bermanfaat bagi masyarakat. Museum bukan hanya tempat penyimpanan benda-benda kuno tetapi juga sebagai tempat penelitian, pembelajaran, dan konservasi benda-benda tersebut. Museum sarat akan misi pendidikan dari generasi ke generasi, karena museum menyimpanan aset bernilai sejarah dan monumental. Arsitektur edukatif merupakan salah satu pendekatan yang muncul untuk mendukung bangunan menjadi lebih fungsional dan informatif. Melalui penerapan arsitektur edukatif kegiatan pada museum dapat dikemas menarik, sehingga penyampaian informasi mudah dipahami oleh masyarakat. Dengan penerapan pendekatan yang sesuai dengan tujuan utama dari museum maka penyampaian informasi dari Petroleum Museum akan lebih maksimal.
Remediation of Lead-Contaminated Water by Red Yeast and Different Types of Phosphate
Authors: Tian Da , Cheng Xiaohui , Wang Liyan , Hu Jun , Zhou Ningning , Xia Jingjing , Xu Meiyue , Zhang Liangliang , Gao Hongjian , Ye Xinxin , Zhang Chaochun 
Published: March 2022

Rhodotorulamucilaginosa (Rho) can secrete large amounts of extracellular polymeric substances (EPS) to resist lead (Pb) toxicity. Phosphate is an effective material for the remediation of Pb. This study explored the Pb remediation by the combination of Rho and different types of phosphate in water. To do so, four phosphates, namely, ferric phosphate (FePO4, Fe-P), aluminum phosphate (AlPO4, Al-P), calcium phosphate [Ca3(PO4)2, Ca-P], and phosphogypsum (PG) were employed along with Rho. Compared with Rho application, the addition of phosphate significantly promoted the secretion of EPS by Rho (21–25 vs 16 mg). The formed EPS-Pb contributes to the Pb immobilization in the combination of Rho and phosphate. After 6 days of incubation, Rho + phosphate treatments immobilized over 98% of Pb cations, which is significantly higher than Rho treatment (94%). Of all Rho + phosphate treatments, Ca-P and PG-amended Rho had higher secretion of EPS, resulting in higher Pb removal. Nevertheless, PG had the highest efficiency for Pb removal compared with other phosphates, which reached 99.9% after 6 days of incubation. Likewise, new Pb minerals, such as pyromorphite and lead sulfate, only appeared in Rho + PG treatment. Altogether, this study concludes on the combined application of Rho and phosphate as an efficient approach to promote Pb remediation, particularly using PG waste.
Feasibility of Specular Reflection Imaging for Extraction of Neck Vessel Pressure Waveforms
Authors: Saiko Gennadi , Burton Timothy , Douplik Alexandre 
Published: March 2022

Cardiovascular disease (CVD) is a leading cause of death worldwide and was responsible for 31% of all deaths in 2015. Changes in fluid pressures within the vessels of the circulatory system reflect the mechanical function of the heart. The jugular venous (JV) pulse waveform is an important clinical sign for assessing cardiac function. However, technology able to aid evaluation and interpretation are currently lacking. The goal of the current study was to develop a remote monitoring tool that aid clinicians in robust measurements of JV pulse waveforms. To address this need, we have developed a novel imaging modality, Specular Reflection Vascular Imaging (SRVI). The technology uses specular reflection for visualization of skin displacements caused by pressure pulsations in blood vessels. SRVI has been tested on 10 healthy volunteers. 10-seconds videos of the neck illuminated with a diffuse light source were captured at 250 fps. SRVI was able to identify and discriminate skin displacements caused by carotid artery and jugular vein pulsations to extract both carotid artery and jugular vein waveforms, making them easier to be visualized and interpreted. The method provided a 6-fold improvement in signal strength over a comparator remote PPG dataset. The current pilot study is a proof-of-concept demonstration of the potential of Specular Reflection Vascular Imaging for extraction of JV pulse waveforms.
Dengue and Dengue Virus in Guangdong, China, 1978–2017: Epidemiology, Seroprevalence, Evolution, and Policies
Authors: Cui Fengfu , He Feiwu , Huang Xiaorong , Tian Lina , Li Saiqiang , Liang Chumin , Zeng Lilian , Lin Huifang , Su Juan , Liu Liping , Zhao Wei , Sun Limei , Lin Lifeng , Sun Jiufeng 
Published: March 2022

BackgroundGuangdong is a hyperepidemic area of dengue, which has over 0.72 million cumulative cases within the last four decades, accounting for more than 90% of cases in China. The local epidemic of dengue in Guangdong is suspected to be triggered by imported cases and results in consequent seasonal transmission. However, the comprehensive epidemiological characteristics of dengue in Guangdong are still unclear.MethodsThe epidemiology, seroprevalence, molecular evolution of dengue virus, and the development of policies and strategies on the prevention and control of dengue were analyzed in Guangdong, China from 1978 to 2017.FindingsSeasonal transmission of dengue virus in Guangdong, China was mainly sustained from July to October of each year. August to September was the highest risk period of local dengue outbreaks. Most of the dengue cases in Guangdong were young and middle-aged adults. Five hundred and three fatal cases were recorded, which declined within the last two decades (n = 10). The serological test of healthy donors' serum samples showed a positive rate of 5.77%. Dengue virus 1–4 (DENV 1–4) was detected in Guangdong from 1978 to 2017. DENV 1 was the dominant serotype of dengue outbreaks from 1978 to 2017, with an increasing tendency of DENV 2 since 2010. Local outbreaks of DENV 3 were rare. DENV 4 was only encountered in imported cases in Guangdong, China. The imported cases were the main source of outbreaks of DENV 1–2. Early detection, management of dengue cases, and precise vector control were the key strategies for local dengue prevention and control in Guangdong, China.InterpretationDengue has not become an endemic arboviral disease in Guangdong, China. Early detection, case management, and implementation of precise control strategies are key findings for preventing local dengue transmission, which may serve for countries still struggling to combat imported dengue in the west pacific areas.
Functional Connectivity Hypointensity of Middle Cingulate Gyrus and Thalamus in Age-Related Macular Degeneration Patients: A Resting-State Functional Magnetic Resonance Imaging Study
Authors: Xiao Ang , Li Hai-Jun , Li Qiu-Yu , Liang Rong-Bin , Shu Hui-Ye , Ge Qian-Min , Liao Xu-Lin , Pan Yi-Cong , Wu Jie-Li , Su Ting , Zhang Li-Juan , Zhou Qiong , Shao Yi 
Published: March 2022

ObjectiveAge-related macular degeneration (AMD) causes visual damage and blindness globally. The purpose of this study was to investigate changes in functional connectivity (FC) in AMD patients using resting-state functional magnetic resonance imaging (rs-fMRI).Subjects and MethodsA total of 23 patients (12 male, 11 female) with AMD were enrolled to the AMD patients group (AMDs), and 17 healthy age-, sex-, and education-matched controls (9 male, 8 female) to the healthy controls group (HCs). All participants underwent rs-fMRI and mean FC values were compared between the two groups.ResultsSignificantly higher FC values were found in the inferior frontal gyrus (IFG), superior frontal gyrus (SFG), inferior parietal lobule (IPL), rectal gyrus (RTG), and superior parietal lobule (SPL) in AMDs compared with HCs. Conversely, FC values in the cerebellum posterior lobe (CPL), middle cingulate gyrus (MCG), medulla (MDL), cerebellum anterior lobe (CAL), and thalamus (TLM) were significantly lower in AMDs than in HCs.ConclusionThis study demonstrated FC abnormalities in many specific cerebral regions in AMD patients, and may provide new insights for exploration of potential pathophysiological mechanism of AMD-induced functional cerebral changes.