bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pemanfaatan Jerami Padi Sebagai Bioplastik Dengan Menggunakan Metode Perlakuan Pelarut Organik
Authors: Setiawan Adhi , Anggraini Febby Dwi Melanny , Ramadani Tarikh Azis , Cahyono Luqman , Rizal Mochammad Choirul 
Published: December 2021

Jerami padi memilki kandungan selulosa yang dapat dimanfaatkan sebagai bahan baku pembuatan bioplastik. Penelitian ini bertujuan untuk mensintesis bioplastik dari bahan baku jerami padi menggunakan perlakuan pelarut organik serta menganalisis pengaruh rasio massa pati dengan selulosa karakteristik produk bioplastik. Proses delignifikasi jerami menggunakan larutan etanol 5% dan 35% pada suhu 80oC selama dua jam. Bioplastik dibuat dengan rasio massa pati dengan selulosa sebesar 1:0,5; 1:1; dan 1:1,5. Karakterisasi menggunakan metode SEM, XRD, TG-DTA, uji tarik, uji transmisi uap, serta uji degradasi. Hasil penelitian menunjukkan bahwa proses delignifikasi menggunakan etanol menyebabkan peningkatan kadar selulosa serta kristalinitas jerami. Morfologi bioplastik menunjukkan permukaan yang tidak rata serta terdapat bagian matriks yang terpisah dengan fiber. Hasil TG-DTA menunjukkan pengurangan massa bioplastik sebesar 81,01% pada suhu 550oC. Hasil kuat tarik terbaik pada bioplastik yang dibuat dengan rasio massa pati dengan selulosa 1:0,5 pada konsentrasi delignifikasi etanol 35%. Nilai kuat tarik yang diperoleh sebesar 8,773 Mpa. Pengujian degradasi bioplastik dilakukan selama 10 hari diperoleh nilai % degradasi terbesar bioplastik adalah sebesar 99,9%. Rice straw contains cellulose which can be used as raw material for making bioplastics. This study aims to synthesize bioplastics from rice straw using organic solvent treatment and analyze the effect of the mass ratio of starch to cellulose on the characteristics of bioplastic products. The straw delignification process used 5% and 35% ethanol solution at 80oC for two hours. Bioplastics are made with a mass ratio of starch to cellulose of 1:0.5; 1:1; and 1:1.5. Characterization using SEM, XRD, TG-DTA methods, tensile test, vapour transmission test, and degradation test. The results showed that the delignification process using ethanol caused an increase in cellulose content and straw crystallinity. The morphology of the bioplastic shows an uneven surface and there are parts of the matrix that are separated from the fiber. The results of TG-DTA showed a reduction the mass of bioplastic by 81.01% at a temperature of 550oC. The best tensile strength results in bioplastics made with a mass ratio of starch to cellulose 1:0.5 at a delignification concentration of 35% ethanol. The tensile strength value obtained was 8,773 Mpa. The bioplastic degradation test was carried out for 10 days and the largest percentage of bioplastic degradation was 99.9%.
Ekokrytyczne czytanie powieści Vladana Desnicy Pronalazak Athanatika
Authors: Đurđević Goran 
Published: December 2021

Autor podejmuje się lektury krótkiej niedokończonej powieści Vladana Desnicy Pronalazak Athanatika z niszowej perspektywy ekokrytycznej. Artykuł składa się z trzech części tematycznych: ekokrytycznego ujęcia cyklu tematycznego: życie – śmierć – nieśmiertelność w porównaniu i nawiązaniu do dzieła Homo deus Yuvala Noaha Harariego. Następnie autor ekokrytycznie analizuje deszcz poprzez pryzmat koncepcji Susan Farrell. W ostatniej części analizuje utwór Pronalazak Athanatika w kontekście dystopijnych współczesnych chorwackich powieści ekologicznych/dotyczących środowiska: powieści Planet Friedman Josipa Mlakicia oraz książki Mjesečev meridijan Edo Popovicia, w odniesieniu do ekokrytycznych tekstów Louise Squire. Autor konkluduje, że Desnica w swoim dziele Pronalazak Athanatika – które zalicza do fikcji spekulatywnej – odwoływał się do aktualnych rozważań naukowych (Harari) i dzieł literackich (Mlakić, Popović). Ostrzegał, że ekologia i czynniki ekologiczne – nieśmiertelność i wzrost populacji, brak żywności, a w ostateczności niszczenie planety – mogą mieć destrukcyjny wpływ na zmiany społeczne, dystrybucję władzy i kształtowanie przyszłości. Desnica stał się dzięki temu prekursorem powieści ekologicznych.
Tracking telecollaborative tasks through design, feedback, implementation, and reflection processes in pre-service language teacher education
Authors: Ekin Semih , Balaman Ufuk , Badem-Korkmaz Fatma 
Published: December 2021

Abstract
Telecollaborative exchanges between students from different countries are increasingly becoming a common practice in foreign language education and calling for new teacher competences for task design in order to maximize interactional opportunities in these settings. Considering that tasks are dynamic in nature and subject to constant change from their initial design to implementation by L2 learners, there is a need for teacher training activities promoting opportunities for improving the required digital and pedagogical competences. With this in mind, this paper sets out to explore the interactional architecture of the multiple steps involved in the training of pre-service language teachers in pedagogical task design for telecollaboration-oriented video-mediated interactional settings. We describe the procedural unfolding of the telecollaborative tasks by analyzing (i) pre-service teachers’ collaborative design meetings and (ii) written design reports; (iii) peer and mentor evaluation of these design ideas in whole-class feedback sessions in teacher training classrooms; (iv) written reports of redesigns after the feedback session, (v) video-mediated implementation by telecollaborative task participants, and finally (vi) pre-service teachers’ written reflections based on the implementation of their own designs. We use Conversation Analysis to closely examine audio and screen-recording data and draw on the textual data to present the procedural unfolding of two tasks over multiple phases, namely design, feedback, implementation, and reflection. The findings show that a telecollaborative task is a co-construction by the pre-service teachers as task designers, the teacher trainer as the mentor, and the L2 learners as the end users in interactionally trackable ways across the teacher education events. The results bring insights into the novel sets of digital, pedagogical, and interactional competencies in L2 contexts. We conclude that task enhanced telecollaboration holds great potential to critically advance research and practice in L2 teaching and teacher education worldwide.
Indirectly determined hematology reference intervals for pediatric patients in Berlin and Brandenburg
Authors: Mrosewski Ingo , Dähn Tobias , Hehde Jörg , Kalinowski Elena , Lindner Ilona , Meyer Thea Marie , Olschinsky-Szermer Michael , Pahl Jana , Puls Monika , Sachse Kristin , Switkowski Rafael 
Published: December 2021

Abstract

Objectives
Establishing direct reference intervals (RIs) for pediatric patients is a very challenging endeavor. Indirectly determined RIs can address this problem by utilization of existing clinical laboratory databases. In order to provide better laboratory services to the local pediatric population, we established population-specific hematology RIs via data mining.

Methods
Our laboratory information system (LIS) was searched for pediatric blood counts of patients aged from 0 days to 18 years, performed from 1st of January 2018 until 31st of March 2021. In total, 27,554 blood counts on our SYSMEX XN-9000 were initially identified. After application of pre-defined exclusion criteria, 18,531 sample sets remained. Age- and sex-specific RIs were established in accordance with International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) and Clinical & Laboratory Standards Institute (CLSI) recommendations.

Results
When compared to pediatric RIs supplied by other authors, the RIs determined specifically for pediatric patients from Berlin and Brandenburg showed several relevant differences, especially with regard to white blood cell counts (WBCs), red blood cell counts (RBCs), red cell distribution widths (RDW) and platelet counts (PLTs) within the distinct age groups. Additionally, alterations to several published age-specific partitions had to be made, while new sex-specific partitions were introduced for WBCs and PLTs.

Conclusions
Generic RIs from textbooks, manufacturer information and medical publications – even from nationwide or multicenter studies – commonly used in many laboratories might not reflect the specifics of local patient populations properly. RIs should be tailored to the serviced patient population whenever possible. Careful data mining appears to be suitable for this task.
Mitigating membrane biofouling in biofuel cell system – A review
Authors: Nasruddin Nur Iman Syafiqah Muhammad , Abu Bakar Mimi Hani 
Published: December 2021

Abstract
A biofuel cell (BFC) system can transform chemical energy to electrical energy through electrochemical reactions and biochemical pathways. However, BFC faced several obstacles delaying it from commercialization, such as biofouling. Theoretically, the biofouling phenomenon occurs when microorganisms, algae, fungi, plants, or small animals accumulate on wet surfaces. In most BFC, biofouling occurs by the accumulation of microorganisms forming a biofilm. Amassed biofilm on the anode is desired for power production, however, not on the membrane separator. This phenomenon causes severities toward BFCs when it increases the electrode’s ohmic and charge transfer resistance and impedes the proton transfer, leading to a rapid decline in the system’s power performance. Apart from BFC, other activities impacted by biofouling range from the uranium industry to drug sensors in the medical field. These fields are continuously finding ways to mitigate the biofouling impact in their industries while putting forward the importance of the environment. Thus, this study aims to identify the severity of biofouling occurring on the separator materials for implementation toward the performance of the BFC system. While highlighting successful measures taken by other industries, the effectiveness of methods performed to reduce or mitigate the biofouling effect in BFC was also discussed in this study.
Xia Yan and the Chinese School of Film
Authors: Rao Shuguang , Zhu Mengqiu 
Published: December 2021

Abstract
A revolutionary, film theorist, and screenwriter, Xia Yan (1900–1995) is known as one of the pioneers of Chinese cinema. Xia’s pursuit of a national style and international status for Chinese cinema and his aspirations for the prosperity of the Chinese nation are in line with the basic ideas and goals of the nascent “Chinese School of Film.” In the context of the under-theorized and problematic production practices of current Chinese cinema, it is high time to revisit Xia’s professional and academic contributions to cinematic art, which shed light on the construction of both the “Chinese School of Film” and “shared aesthetics.”
The Central Bank Shift to Market Maker of Last Resort: The Unintended Consequences of Unconventional Monetary Policies
Authors: Giménez Roche Gabriel A. , Janson Nathalie 
Published: December 2021

Abstract
We analyze the transition of central banks from lenders to market makers of last resort. The adoption of unconventional monetary policies characterizes this transition. In their new role as market makers, central banks engage in the latter by extending and reinforcing interventions in other markets than the traditional bank reserves market. We then explain that the difference between the two roles is one of degree rather than kind. In both cases, the prevention of liquidity shortages is a primary concern. As conventional policies become inadequate, central banks resort to unconventional policies to escape a general liquidity shortage at the zero lower bound. However, these unconventional policies do not solve the structural problems in financial and real markets. Both conventional and unconventional monetary policies cause price distortions, in particular on asset markets. The policies of the market maker of last resort prevent necessary readjustments of cyclical divergences between real and financial markets.
Application of ultra-high-performance concrete in prefabricated buildings
Authors: Luo Dong , Lu Tian , Chen Y. Frank 
Published: December 2021

Abstract
As a new cement-based composite material, the ultra-high-performance concrete (UHPC) has attracted wide attention because of its excellent mechanical properties and durability; and it has been applied successfully in the engineering field. As an important way to sustain engineering practice, the combination of prefabricated building and UHPC presents a great economic benefit and is worthy of further exploration. Based on the research and application status of UHPC materials in prefabricated construction, the engineering application classifications of UHPC are introduced; the advantages of using UHPC in prefabricated construction are summarized; the progress on UHPC research and its application in prefabricated construction is also summarized; the potential issues on the application of UHPC in prefabricated construction are pointed out; the possible solution strategies and development directions are proposed for promoting UHPC application in prefabricated construction.
Prediction of the optimal FSW process parameters for joints using machine learning techniques
Authors: Sarsilmaz Furkan , Kavuran Gürkan 
Published: December 2021

Abstract
In this work, a couple of dissimilar AA2024/AA7075 plates were experimentally welded for the purpose of considering the effect of friction-stir welding (FSW) parameters on mechanical properties. First, the main mechanical properties such as ultimate tensile strength (UTS) and hardness of welded joints were determined experimentally. Secondly, these data were evaluated through modeling and the optimization of the FSW process as well as an optimal parametric combination to affirm tensile strength and hardness using a support vector machine (SVM) and an artificial neural network (ANN). In this study, a new ANN model, including the Nelder-Mead algorithm, was first used and compared with the SVM model in the FSW process. It was concluded that the ANN approach works better than SVM techniques. The validity and accuracy of the proposed method were proved by simulation studies.
Task-Specific Neural Representations of Generalizable Metacognitive Control Signals in the Human Dorsal Anterior Cingulate Cortex
Authors: Su Jie , Jia Wenbin , Wan Xiaohong 
Published: December 2021

The dorsal anterior cingulate cortex (dACC) plays a critical role in cognitive control over different domains of tasks. The dACC activities uniformly represent task-generic intensities of control signals across different tasks. However, it remains unclear whether the dACC activities could also encode task identities of control signals across different tasks. If so, how the two types of control information are coherently organized in the dACC? Decision uncertainty is an internally-generated control signal by retrospective monitoring, namely, metacognition, even with no external feedback. We here investigated neural representations of decision uncertainty accompanying three decision-making tasks in the domains of perception, rule-based inference, and memory using trial-by-trial univariate and multivariate analyses on functional magnetic resonance imaging (fMRI) data acquired on human male and female healthy subjects. Our results demonstrated that the dACC represented decision uncertainty commonly across the three decision-making tasks. Further, the multivariate fMRI analyses revealed a mosaic form of neural representations of decision uncertainty across tasks in the dACC. The identity and intensity information was separately represented in two dissociable components, the high-dimensional pattern and the scalar magnitude, of the dACC multivoxel fMRI activities. Lastly, a follow-up behavioral experiment confirmed that this mosaic form of neural representations of parallelly existing decision uncertainty across different tasks should lead to mutual interferences more on the intensity, but less on the identity of control signals. Thus, our findings suggest that the dACC with the mosaic form of neural representations could provide task-generic and task-specific metacognitive control signals to guide appropriate control on different decision-making tasks.SIGNIFICANCE STATEMENTMetacognition is a form of cognitive control using internally generated decision uncertainty to guide behavior adjustment with no needs of external feedback. Decision uncertainty as a generalizable control signal is commonly encoded in the human dorsal anterior cingulate cortex (dACC) accompanying different decision-making tasks. It remains unknown whether or not the task-specific control information is represented in the dACC. We here revealed that multivoxel functional magnetic resonance imaging (fMRI) activities associated with decision uncertainty in the dACC concurrently represented the identity and intensity information. The mixtures of neural representations of decision uncertainty across different tasks should cause specific interferences on each other. Hence, the neural representations of control signals in the human dACC should be task-generic and task-specific.
Simultaneous determination of three naphthoquinones from Arnebia euchroma (Royle) Johnst in beagle plasma by UPLC-MS/MS and application for pharmacokinetics study
Authors: Wang Zhibin , Zhang Mingyu , Zhu Wenbo , Yang Chunjuan , Kuang Haixue 
Published: December 2021

Abstract
A rapid, simple and efficient ultra-performance liquid chromatography-electrospray ionization-tandem mass spectrometry (UPLC-ESI-MS/MS) method was established to simultaneous determination of shikonin, isobutyryl shikonin, β, βʹ-dimethylacryl alkanin in beagle plasma and evaluated by using esculetin as internal standard. The electrospray ionization (ESI) source was operated in negative ionization mode. Multi-reaction monitoring (MRM) was used to quantitatively analyzed shikonin m/z 287.0 → 217.9, isobutyryl shikonin m/z 357.0 → 268.9, β, βʹ-dimethylacryl alkanin m/z 370.0 → 270.1 and esculetin m/z 177.0 → 89.0, respectively. The method was validated for selectivity, linearity, lower limit of quantification, precision, accuracy, recovery, matrix effect and stability. All validation parameters met the acceptance criteria according to regulatory guidelines. This method was successfully applied for the pharmacokinetic study of shikonin, isobutyryl shikonin, β, βʹ-dimethylacryl alkanin in beagle dogs plasma after oral administration of A. euchroma extract.
Molecular Characterization of Caulerpa racemosa (Caulerpales, Chlorophyta) from Indonesia Based on the Plastid tufA Gene
Authors: Darmawan Muhamad , Zamani Neviaty Putri , Irianto Hari Eko , Madduppa Hawis H 
Published: December 2021

The green seaweed Caulerpa racemosa is a seaweed of high prospect that is being given emphasis by the Indonesian government. However, C. racemosa in Indonesia may include multiple species level-entity exhibiting morphological overlap and require molecular analysis for species identification. Molecular documentation of species richness of indigenous populations of C. racemosa is essential to underpin cultivar development and conservation of the species to avoid overharvesting. The present study aimed to determine the genetic diversity of C. racemosa and document the haplotype network of the specimens from four different locations (Bintan Island, Jepara, Takalar and Osi Island) using the chloroplast tufA gene. Twenty individuals from four areas were collected and amplified with the chloroplast-encoded gene tufA for species identification against publicly available data. The identification of C. racemosa based on the tufA gene showed that the species found in four locations were C. cylindracea (previously C. racemosa var. cylindracea), C. macra (previously C. racemosa var. macra), C. racemosa, and C. oligophylla (previously C. racemosa var. lamourouxii). This study records the existence of C. cylindracea in Takalar and Jepara, Indonesia for the first time. The most diverse C. racemosa species was in Osi Island, where the exploitation of this seaweed is very low. In contrast, the lowest number of C. racemosa varieties were found in Takalar, where exploitation is very high. There were only minor light variations of Caulerpa species in the tufA gene in four different sites with only four haplotypes found, and each haplotype corresponded to another species.
Alpha Globin Gene Copy Number Is Associated with Prevalent Chronic Kidney Disease and Incident End-Stage Kidney Disease among Black Americans
Authors: Ruhl A. Parker , Jeffries Neal , Yang Yu , Naik Rakhi P. , Patki Amit , Pecker Lydia H. , Mott Bryan T. , Zakai Neil A. , Winkler Cheryl A. , Kopp Jeffrey B. , Lange Leslie A. , Irvin Marguerite R. , Gutierrez Orlando M. , Cushman Mary , Ackerman Hans C. 
Published: December 2021

Significance Statement
Resistance artery endothelial cells express α-globin, which limits nitric oxide signaling and enhances α-adrenergic–mediated vasoconstriction—two signaling pathways involved in renal blood flow regulation and kidney disease pathogenesis. A common HBA gene deletion might therefore confer protection against kidney disease by increasing endothelial nitric oxide signaling and decreasing vasoconstriction in response to α-1–adrenergic stimuli. Among Black Americans, HBA copy number varied from 2 to 6; an increase by one HBA gene copy was associated with 14% greater risk of CKD and 32% greater hazard of incident ESKD. This study identifies HBA deletions as protective against CKD and ESKD and highlights the importance of understanding the role of α-globin in renovascular pathophysiology.

Background

α-Globin is expressed in endothelial cells of resistance arteries, where it limits endothelial nitric oxide signaling and enhances α-adrenergic–mediated vasoconstriction. α-Globin gene (HBA) copy number is variable in people of African descent and other populations worldwide. Given the protective effect of nitric oxide in the kidney, we hypothesized that HBA copy number would be associated with kidney disease risk.

Methods
Community-dwelling Black Americans aged ≥45 years old were enrolled in a national longitudinal cohort from 2003 through 2007. HBA copy number was measured using droplet digital PCR. The prevalence ratio (PR) of CKD and the relative risk (RR) of incident reduced eGFR were calculated using modified Poisson multivariable regression. The hazard ratio (HR) of incident ESKD was calculated using Cox proportional hazards multivariable regression.

Results
Among 9908 participants, HBA copy number varied from 2 to 6. In analyses adjusted for demographic, clinical, and genetic risk factors, a one-copy increase in HBA was associated with 14% greater prevalence of CKD (PR, 1.14; 95% CI, 1.07 to 1.21; P<0.0001). While HBA copy number was not associated with incident reduced eGFR (RR, 1.06; 95% CI, 0.94 to 1.19; P=0.38), the hazard of incident ESKD was 32% higher for each additional copy of HBA (HR, 1.32; 95% CI, 1.09 to 1.61; P=0.005).

Conclusions
Increasing HBA copy number was associated with a greater prevalence of CKD and incidence of ESKD in a national longitudinal cohort of Black Americans.