bluuebunny/crossref_metadata_2025_split huggingface dataset:
Value-added biochar production from microwave pyrolysis of peanut shell
Authors: Fan Sichen , Cui Longfei , Li Hui , Guang Mengmeng , Liu Hui , Qiu Tianhao , Zhang Yaning 
Published: March 2023

Abstract
In order to seek efficient resource utilization, the carbonization of agricultural and forestry wastes through microwave pyrolysis technology is an important research hotspot to develop value-added products. The main objective is to produce value-added biochar through microwave pyrolysis of peanut shell in this study. The product yields, functional groups, and biochar HHVs caused by pyrolysis temperature (400, 450, 500, 550, and 600 °C), microwave power (350, 450, 550, 650, and 750 W), and residence time (10, 20, 30, 40, and 50 min) were investigated, and the energy recovery efficiencies were evaluated. It was obtained that the biochar yield declined monotonously within the range of 45.3–86.0 wt% with the enhancement of pyrolysis temperature, microwave power, or residence time. The pyrolysis temperature of 400 °C, microwave power of 350 W, and residence time of 10 min generated the maximum biochar yield (86.0 wt%). The value-added biochar was obtained with high HHV (20.15–31.02 MJ/kg) and abundant oxygen-contained functional groups (C–O bonds and C=O bonds). The maximum energy recovery efficiency during the whole process reached 97.96%. The results indicated that the peanut shell could reach high biochar yield through microwave pyrolysis, and potentially be transformed into value-added products with high energy recovery efficiency.
Micénico ka-ra-wi-ja ‘vieja(s)’ y la religión micénica
Authors: Piquero Juan 
Published: March 2023

Abstract
This paper aims to offer a new interpretation of the Mycenaean word ka-ra-wi-ja *γρᾱ́ϝια ‘old woman’, which appears in some Mycenaean texts of the series Fq from Thebes and Fu from Mycenae. Their content points to the context of distribution of food probably related to the celebration of a ritual. Thus far, it has been interpreted as a male or female anthroponym, a theonym or a nickname, but these hypotheses seem unlikely. It has also been suggested that this may be the designation of a professional group without providing a more concrete explanation. It is reasonable, however, that it is an appellation referring to one or more older women participating in a ritual
Beyond fraudulent multiculturalism in higher education: moving forward
Authors: Obiakor Festus E. , Aluka Innocent J. , Mbagwu Emmanuel I. , Obi Sunday O. 
Published: March 2023

Abstract
Recent demographic changes in the United States have shown that we live in a multicultural society. However, for some reason, colleges and universities are still floundering in mediocrity when it comes to multiculturalism. What we see in higher education is multiculturalism that is fraudulent and unaccountable and the fact that individuals from culturally and linguistically diverse (CLD) and vulnerable backgrounds consistently endure White supremacy, racism, discrimination, and xenophobia, to say the least. In addition, we consistently see that proactive and measurable efforts are not made in the recruitment, retention, graduation, continuation, tenure, and promotion of students, faculty, staff, and leaders from CLD, immigrant, and vulnerable backgrounds. While there are well-written and documented policies, mission and vision statements, and goals and objectives in institutions of higher learning, there appears to be deficits in applicability and accountability measures of equity, diversity, quality, goodness, and fairness. Most strategies seem to be feel-good, look-good, fake, bandaid, and fraudulent approaches that are divorced from realities. How do we reverse these moves while respecting the traditional roles of higher education? This article responds to this critical question.
Fishing Nets and String at the Final Mesolithic and Early Neolithic Site of Zamostje 2, Sergiev Posad (Russia)
Authors: Berihuete-Azorín Marian , Lozovskaya Olga , Herrero-Otal Maria , Piqué i Huerta Raquel 
Published: March 2023

Abstract
The site Zamostje 2, located in Sergiev-Posad district of Moscow (Russia) on the west bank of the Dubna River, has provided two Mesolithic and one Early Neolithic occupations dated from 7000 to 5400 cal BC. Thanks to the waterlogged environment, the site has an exceptional preservation. The site has yielded fishing screens, fishing fences, wooden fishing traps, and several small cordage remains elaborated with plant fibres, pine bark floats, fragments of paddles, and other wooden objects. In this work, we present the study of the fragments of cordage and fishing nets with the objective of providing new insights into the production and use of implements made of plant fibres. We have characterized the production process by analysing the morphological and technical characteristics by carrying out experimentation with plant fibres in order to obtain reference material to recognize them at an archaeological level. The analysis of 82 knots and 23 fragments of strings has allowed to determine that they were elaborated with single threads from 0.5 to 1.5 mm thick, which is noticeably smaller than most examples from other sites. All of them were elaborated with woody bast fibres.
Features of determining the charge deuteron form factor G

C
(p)
Authors: Zhaba Viktor I. 
Published: March 2023

Abstract
The main features of obtaining the asymptotic behavior of the charge deuteron form factor G

C
(p) at large values of the momentum have been analyzed. The asymptotic behavior of the charge form factor G

C
(p) was determined by taking into account the analytic form of deuteron wave function in the coordinate representation and the original dipole fit for the nucleon form factors. Asymptotic values of charge form factor G

C
(p) has been obtained for the nucleon-nucleon phenomenological potential Reid93 and compared with the calculations for eight different nucleon form factors models and their approximations. In the wide range up to 10.5 fm−1 of transmitted momentum, the basic forms of the asymptotic behavior of the charge deuteron form factor have been demonstrated and compared with the experimental data of the leading modern collaborations and reviews. The secondary maximum for G

C
(p) for the potential Reid93 will be located at the momentum range at 5.45–5.70 fm−1. The calculated position of the zero p
0 is located at the momentum interval 4.60–4.65 fm−1. The position of the zero for one potential coincides regardless of the choice of models and approximations for the nucleon form factors. As the analysis shows, the value of the mean-square charge radius of the deuteron takes the value of r

ch
= 2.02876–2.14695 fm depending on the chosen deuteron wave function and nucleon form factors.
Extraction of Micro, Nanocrystalline Cellulose and Textile Fibers from Coffee Waste
Authors: Karunakaran Geyandraprasath , Periyasamy Aravin Prince , Tehrani Ali 
Published: March 2023

Abstract
Because of the environmental footprint of oil-based materials, the demand for bio-based renewable materials is hiked. The usage of agricultural waste to extract cellulose, minimized the dependent of hydrocarbon products which is an added value besides due to overpopulation the productivity is increased, which leads to an increase in agricultural waste that causes environmental pollution. In this work, various cellulosic materials, such as cellulosic textile fibers (CTF), microcrystalline cellulosic fibers, and nanocrystalline cellulosic fibers, were extracted from coffee waste to make them into valuable products. The morphological analysis of extracted cellulose is performed by scanning electron microscopy, and the Fourier transform infrared spectroscopy was performed to investigate the structure of extracted cellulose, which indicates the crystalline cellulosic components from the extraction process; X-ray diffractometer analysis shows the extracted cellulose was cellulose I and cellulose II. The cellulose that is extracted by ultrasonication with dimethyl sulfoxide has 88 % of cellulose with a crystallinity index of 74.5 %, and the thermal properties of raw coffee husk and extracted cellulose were compared by thermogravimetric analysis. Additionally, the dye uptake of the CTF shows its potential as a bio-adsorbent in the dye removal domain.
Preparations of Lake Sediment Geopolymers Using the Alkaline Activation and Their Mechanical Properties
Authors: Zhang K. , Lu H. F. , Yi J. L. , Kong X. X. , Li Z. Y. , Zhang Q. Z. , Feng B. 
Published: March 2023

Abstract
Lake sediments are chemical precipitates rich in silicon and aluminum and cannot be directly used because of poor mechanical properties. The alkali activation of silicon and aluminum-containing raw materials is a new type of inorganic cementitious strategy for geopolymers that can exhibit an excellent performance and lower carbon emissions with respect to ordinary cement. In this work, we employed the alkali activation to prepare a novel geopolymer from lake sediments in order to solve the problem of lake sediment disposals. To this end, raw materials were obtained using different alkaline activators for unconfined compressive strengths. In particular, the effects of water to solid ratio, dosage of alkaline activator, dosage of silica fume, and fly ash on alkali activation of lake sediments were investigated using the orthogonal experiments. The results showed that plant ash helped solidify the lake sediment but also led to cracks. Sodium silicate was the most appropriate alkaline activator for the lake sediments. Among all the factors, water-solid ratio showed the greatest influence on the strength of the prepared geopolymer, whereas fly ash content had the least influence. The lower the water-cement ratio, the higher the geopolymer strength, whereas the lower the fly ash content, the higher the geopolymer strength.
The ion channel CALHM6 controls bacterial infection‐induced cellular cross‐talk at the immunological synapse
Authors: Danielli Sara , Ma Zhongming , Pantazi Eirini , Kumar Amrendra , Demarco Benjamin , Fischer Fabian A , Paudel Usha , Weissenrieder Jillian , Lee Robert J , Joyce Sebastian , Foskett J Kevin , Bezbradica Jelena S 
Published: March 2023

AbstractMembrane ion channels of the calcium homeostasis modulator (CALHM) family promote cell–cell crosstalk at neuronal synapses via ATP release, where ATP acts as a neurotransmitter. CALHM6, the only CALHM highly expressed in immune cells, has been linked to the induction of natural killer (NK) cell anti‐tumour activity. However, its mechanism of action and broader functions in the immune system remain unclear. Here, we generated Calhm6−/− mice and report that CALHM6 is important for the regulation of the early innate control of Listeria monocytogenes infection in vivo. We find that CALHM6 is upregulated in macrophages by pathogen‐derived signals and that it relocates from the intracellular compartment to the macrophage‐NK cell synapse, facilitating ATP release and controlling the kinetics of NK cell activation. Anti‐inflammatory cytokines terminate CALHM6 expression. CALHM6 forms an ion channel when expressed in the plasma membrane of Xenopus oocytes, where channel opening is controlled by a conserved acidic residue, E119. In mammalian cells, CALHM6 is localised to intracellular compartments. Our results contribute to the understanding of neurotransmitter‐like signal exchange between immune cells that fine‐tunes the timing of innate immune responses.
Factors affecting nanofluids behaviour: A review
Authors: Alktranee Mohammed , Bencs Péter 
Published: March 2023

AbstractNanotechnology applications have occupied a wide range in engineering applications and achieved distinctive performance due to their potential as a working fluid instead of conventional liquids due to their outstanding performance. Sustaining stable performance nanofluids for a longer time retaining their properties without clustering and nanoparticles aggregation in the base fluid represents a significant challenge that can influence nanofluid properties and thermal behaviour. This review highlights some important factors that influence the stability of nanofluids, such as the size, concentration ratio of nanoparticles, and the type of base fluid, in addition discussing the methods used to improve the stability of nanofluids, such as the effect of cluster formation of nanoparticles in the base fluid due to Brownian motion and the role of the surfactants in preventing or reducing the agglomeration of nanoparticles, zeta potential and pH in estimating nanofluids stability. The factors mentioned affect the thermophysical properties of nanoparticles in preparing nanofluids and enhance their performance. This review provides information which helps improve the wide range usability of nanofluids for preparing stable nanofluids with good thermophysical properties.
CHEMICAL CONSTITUENTS OF DICHLOROMETHANE EXTRACT FROM THE STEM BARK OF GARCINIA FAGRAEOIDES
Authors: Tran Thu Thuy Thi , Hoang Thi Minh Nguyet , Nguyen Phuong Thuy , Nguyen Nghia Vu , Nguyen Quoc Binh , Bui Huu Tai , Phan Minh Giang 
Published: March 2023

The Garcinia genus belonging to the Clusiaceae family (Guttiferae) has been reported to be a rich source of polyisoprenylated benzophenones, xanthones and biflavonoids with various biological activities. Garcinia fagraeoides A.Chev is an evergreen hardwood tree found only in the north provinces of Viet Nam and Guangxi province of China. Its stem bark and leaves have been used in Vietnamese traditional medicine for treatment of malaria and dermatitis diseases. In our continuing studies on chemical constituents and biological activities from the genus Garcinia, the phytochemical of Garcinia fagraeoides’s stem bark collected from Thua Thien Hue province was investigated. Repeated chromatography steps over silica gel and Sephadex LH-20 of the dichloromethane partition from the methanol extract of Garcinia fagraeoides’s stem bark led to the isolation of five compounds including one polyisoprenylated benzophenone (isogarcinol (1)), two tetraoxygenated xanthones (rubraxanthone (2), a-mangostin (3)), ferulic acid (4), and pyromeconic acid (5). Their structures were elucidated mainly by analysis of their 1D, 2D NMR spectroscopy and ESI-MS data, and by comparison with reported data. The absolute configuration of isogarcinol (1) was determined by comparison of its experimental optical rotation and NMR data with the values of its stereoisomer. This is the first reported isolation of compounds 1-5 from the stem bark of Garcinia fagraeoides.
The role of copper decorating poly(1,8-diaminonaphthalene)/graphene electrodes as a catalyst in the determination of nitrite
Authors: Hong Van Bui Thi , Thuy Do Thi , Huy Nguyen Le , Mai Nguyen Thi Tuyet , Lam Tran Dai , Dung Nguyen Tuan 
Published: March 2023

. Electroactive poly(1,8-diaminonaphthalene) is known to have a high affinity for metal ions thanks to amine and imine groups in the polymer chain. However, electrochemical sensors based on pristine P(1,8-DAN) have a major drawback concerning its poor electrical conductivity. To solve this problem, recently P(1,8-DAN) has been modified with some advanced nanomaterials such as carbonaceous materials or different metallic elements. In this research, we reported the synthesis and electrochemical characterization of a poly(1,8-diaminonaphthalene)/graphene composite film capable of adsorbing Cu2+ ions towards the application of nitrite sensing. P(1,8-DAN) was directly electropolymerized on graphene-coated glassy carbon electrode by a potential cycling between –0.15 and +0.95 V (vs. SCE) at a scan rate of 0.05 V/s, in aqueous solution containing 1.0 M HClO4 and 1.0 mM monomer 1,8-DAN,. The adsorption of Cu2+ ions onto the P(1,8-DAN) thin film was caried out in 0.1 M Cu(NO3)2 solution at 80 oC, followed by electrochemically redution to metal Cu0 by applying -0.4 V. The obtained copper decorating poly(1,8-diaminonaphthalene)/graphene (Gr/P(1,8-DAN)-Cu) electrodes acted as a catalyst in the enhancement of electrochemical signal for the determination of nitrite. The linear voltammetric response to the nitrite concentration was observed by a square wave voltammetric technique in the range of 0.69 to 1.12 mM with a detection limit of 0.13 mM. The results open up the path for designing other nitrite sensing based on our novel approach.
PEMANFAATAN BUKU PASUKAN M SEBAGAI SUMBER BELAJAR UNTUK MEMBANGUN KESADARAN SEJARAH DAN KEMAMPUAN BERPIKIR KRITIS SISWA KELAS XI IPS DI SMAN 1 GLAGAH
Authors: Suryansyah Ronni , Hudiyanto Reza , Sayono Joko 
Published: March 2023

The book of Pasukan M is a story that tells about the resistance to maintain independence in the Bali Strait, which was spearheaded by Captain Markandi. In this material, students are invited to visualize local historical events that have occurred so that they can examine the struggles of independence figures in defending their territory and encourage the formation of thinking patterns towards rational, critical, empirical, and can also develop attitudes of human values, respect for others, and mutual cooperation. Building historical awareness and critical thinking skills through Pasukan M provides an overview of how local history can have an impact on students in their lives. As a means of building historical awareness and critical thinking skills of students. Finding solutions to existing problems, thinking actively and creatively in developing critical thinking patterns are also included in the skills students need as life skills. Buku Pasukan M merupakan sebuah kisah yang menceritakan tentang perlawanan mempertahankan kemerdekaan yang berada di Selat Bali yang dipelopori oleh Kapten Markandi. Materi ini siswa diajak untuk visualisasi dari kejadian sejarah lokal yang telah terjadi sehingga dapat menelaah perjuangan para tokoh kemerdekaan dalam mempertahankan wilayahnya dan mendorong terbentuknya pemikiran rasional, berpikir kritis dan juga dapat mengembangkan karakter yang menghargai sesama, dan gotong royong. Membangun kesadaran sejarah dan kemampuan berpikir kritis melalui Pasukan M memberikan sebuah gambaran mengenai bagaimana sejarah lokal bisa memberikan dampak pada siswa dalam kehidupannya. Sebagai sarana membangun kesadaran sejarah dan kemampuan berpikir kritis siswa. Menemukan solusi dari masalah yang ada, berpikir secara aktif dan kreatif dalam mengembangkan pola pikir kritis juga termasuk dalam keterampilan yang dibutuhkan siswa sebagai bekal kecakapan hidup.
Students' Perception Regarding the Cryptocurrencies
Authors: Morosan Adrian , Oprișan Oana , Stoica Eduard Alexandru , Tileagă Cosmin 
Published: March 2023

Through our study, we studied the perception of the students of an economic faculty speciality which are at the end of their studies and who will soon become economists, and their attitude towards the cryptocurrencies. Their contacts inside or outside the university led to their professional development because they brought to their attention the widening of the sphere of finance through the prism of a new concept that appeared fifteen years ago, that of cryptocurrency. The main scope of the paper is to understand how students currently relate to cryptocurrencies, after going through all the subjects in the curriculum of their economic specialization. The methodology will involve the use of a structured interview. Important results of our study will be related to the fact that the female students interviewed, who, unlike almost all of the female students, are or say that they will be involved in trading cryptocurrencies in the near future and to the fact that an important part of their information regarding the cryptocurrencies is obtained from outside the faculty. We will recommend, knowing the current situation of the interviewed students, to the teachers who teach various disciplines in the specialization of which the interviewed students are part of that they could try, in the situation where the taught subjects allow it, to offer to the students who will come in the following years additional information about the cryptocurrencies.
Mating still disrupted: Future elevated CO<sub>2</sub> concentrations are likely to not interfere with <i>Lobesia botrana</i> and <i>Eupoecilia ambiguella</i> mating disruption in vineyards in the near future
Authors: Becker Christine , Rummel Anna , Gallinger Jannicke , Gross Jürgen , Reineke Annette 
Published: March 2023

The successful, area-wide application of the mating disruption (MD) technique, an insect sex pheromone-based biotechnological pest control method, against the European grapevine moth Lobesia botrana and the European grape berry moth Eupoecilia ambiguella, has led to drastic reductions in insecticide application in vineyards. However, since insect pheromone perception and emission can be affected by abiotic conditions, the future success of MD may be affected by climate change. At the same time, politics and society are calling for drastic and sustainable reductions in pesticide application, making highly specific, efficient, and environmentally friendly pest control techniques like MD more important than ever. To anticipate whether climate change factors will interfere with the MD of L. botrana and E. ambiguella in vineyards, we conducted field experiments in the Geisenheim VineyardFACE (Free-Air Carbon dioxide Enrichment) facility. The insects were raised at ambient or elevated temperatures in the lab and male moths were released in cages installed in the VineyardFACE facility. Trap recapture rates obtained by pheromone lures or female moths under elevated or ambient CO2 in areas with and without MD were evaluated. Our results did not indicate a reduced efficacy ofL. botrana or E. ambiguella MD at elevated CO2 concentrations, irrespective of the temperature the moths were raised under. From a practical point of view—and especially from an ecological one—our results are good news. They indicate that MD will not be negatively affected by future elevated CO2 concentrations.
The Effect of Coffee Husk Waste Addition with Alkalisation Treatment on the Mechanical Properties of Polypropylene Composites
Authors: Melyna Ella , Afridana Atika Pratiwi 
Published: March 2023

<p><strong>ABSTRACT. </strong>Indonesia is the fourth largest coffee producing country in the world with 762.38 thousand tonnes production in 2020. The coffee bean waste in the form of coffee skins is around 50-60% of the harvest. Coffee skin waste is a type of natural material that has not been widely used. Processing coffee skin waste as a filler in thermoplastic polymers can be a solution to environmental problems. This study using the polypropylene matrix. This study was conducted to determine the effect of adding coffee husk by alkalizing treatment on polypropylene composites on tensile strength, impact strength and flexural strength. The composition of coffee husk used is 20, 30, 40% wt. The coffee husk was first alkalized with 5%, 8%, and 11% KOH to remove lignin. Composite manufactured using manual forming machines. The results of this study indicate that the addition of coffee husk reduces the value of the tensile strength and flexural strength of the polypropylene composite. The addition of 20% wt coffee husk with 5% KOH alkalisastion on the polypropylene composite gave the highest tensile strength value of 5.65 MPa and the highest flexural strength of 28.72 MPa. Alkalisastion treatment with KOH on coffee husk reduces the value of tensile strength and flexural strength in polypropylene composites. The treatment without 0% KOH alkalisastion on coffee husk gave the highest tensile strength value of 13.30 MPa and alkalizing treatment with 5% KOH on coffee husk gave the highest flexural strength value of 28.72 MPa with the addition of 20% wt coffee husk. Alkalisastion treatment with KOH on coffee husk increased the impact strength value on polypropylene composites. Alkalisastion treatment with 11% KOH on coffee husk gave the highest impact strength value of 4.62 kJ/m<sup>2 </sup>with the addition of 20% wt coffee husk.</p><p><strong>Keywords: </strong><span lang="IN">composite, polypropylene, coffe</span><span lang="EN-US">e</span><span lang="IN"> husk, alkalisation</span></p><p> </p>