bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Effect of Moringa oleifera Leaves Addition on The Characteristic of Tuna (Thunnus albacares) Fishball
Authors: Herawati E R N , Ariani D , Khasanah Y , Nurhayati R , Kurniadi M , Indrianingsih AW , Laila U , Februanata N , Juligani B 
Published: December 2021

Abstract
Indonesia has many potential marine source, such as tuna (Thunnus albacares) fish, and supported with rich biodiversity including Moringa oleifera leaves. Tuna fish is a very potential protein source which can be develop in many potential food product, such as fishball. This research was conducted to determine the effect of Moringa oleifera leaves addition on the characteristic of tuna fishball. The fishball were made from tuna fish, mixed with local flour, i.e. modified cassava flour (mocaf) flour, tapioca flour, and sago flour. Fresh moringa leaves was added to fishball with three different concentration (10%,20%,30%) and followed by the evaluation of chemical characteristic, including water content, ash content, protein content, fat content, carbohydrate content, antioxidant activity, and sensory characteristic, including hedonic test and descriptive test. The chemical analysis of the fishball showed that the addition of moringa leaves increased the water content to 4.84%, protein content to 7.25%, antioxidant activity to 3.03% and decreased the fat content to 0.18%. The most preferred fishball product from the sensory analysis was the fishball with 10% moringa leaves addition. The hedonic sensory test showed that the overall acceptance of the fishball with 10% moringa leaves addition was not significantly different with the fishball without moringa leaves addition. This study indicated that a healthy fishball could be made from tuna fish mixed with local flour and moringa leaves.
Preliminary extraction of catechin in cashew testa
Authors: Le H Q V , Tong T D , Luu X C , Le X T 
Published: December 2021

Abstract
The water extraction procedure (WE) was critically selected to extract (+)-catechin and (-)-epicatechin in cashew testa. The effects of different extracting factors, including multiple extraction, extracting temperature, extracting duration, and solvent-material ratio, on catechin amounts were evaluated. Under optimal conditions, a gram of water extract (WE’) contained 151.2±4.7 mg of (+)-catechin and 85.2±2.3 mg of (-)-epicatechin. These values were nearly three-folded compared to raw material, 55.0±1.4 and 31.0±0.6 mg, respectively. By using fractional extraction with ethyl acetate, the amounts of (+)-catechin and (-)-epicatechin per gram of ethyl acetate extract (WE2) in the present extracts respectively increased to 219.4±16.5 and 123.6±8.9 mg.
Preparation and characterization of PVA thin-film composite membrane for pervaporation dehydration of ethanol solution
Authors: Thai Phuong Thanh Ngoc , Pham Xuan Minh , Nguyen Thuc Ba , Le Thu Minh , Viet Tran Chau Bao , Phong Mai Thanh , Tran Le-Hai 
Published: December 2021

Abstract
These days, ethanol fuel has been widely consumed worldwide to replace gasoline due to its possible environmental and long-term economic advantages. In detail, the ethanol fuel (purity ≥ 99.5 wt%) has been produced by traditional separation processes such as azeotropic distillation or molecular sieve adsorption, which excessively employs energy and capital cost. The pervaporation has already been considered as an effective alternative to conventional methods because of its high separation efficiency and low power consumption. Pervaporation separation of ethanol/water solution using hydrophilic membranes has been extensively studied owing to their superior perm-selectivity. In this present work, the polyvinyl alcohol thin-film composite membrane is prepared by casting a thin crosslinked polyvinyl alcohol (PVA) film on the polyacrylonitrile (PAN) porous substrate. The effect of PVA concentration on the pervaporation performance of the fabricated membrane is studied. The physicochemical properties of the prepared membrane are characterized using FTIR, SEM images, and contact angle measurements. The separation performance in terms of permeation flux and selectivity is simultaneously evaluated through a pervaporation dehydration of ethanol/water mixture of 80/20 wt.% at 60°C. The results show that the increase in PVA concentration leads to the decline in the hydrophilicity and the growth of the thickness and swelling degree of the membrane. Therefore, the selectivity of the membrane is found to improve significantly, while the permeation flux decreased with the PVA concentration ranging from 2.5 to 15 wt.%. Based on the results, the PVA membrane prepared from the 10 wt.% concentration is likely to provide high separation performance.
Photodegradation of acetone vapor by carbon dots decorated TiO2 catalyst: effects of experimental conditions
Authors: Tu Le Nguyen Quang , Ngan Le Thi Kim , Nhan Nguyen Vu Hanh , Long Nguyen Quang 
Published: December 2021

Abstract
Being one of the most common volatile organic compounds (VOCs), acetone can be found in everyday products and high doses of acetone pose harmful effects on human health. Photocatalytic oxidation has captured the attention as an alternative feasible and cost-effective technology in treating VOCs. This study mainly focused on the photocatalytic performance of carbon dots (CDs) decorated TiO2 prepared using the microwave-assisted method in degrading acetone in a continuous flow under UVA irradiation at room temperature with various experimental conditions (initial concentrations, water contents and flow rates). The presence of carbon dots on the surface of TiO2 had improved the removal efficiency of the photocatalyst and maintained a good overall performance throughout the experiments. Significantly, the prepared CDs/TiO2 exhibited sustainable performance under the change of water contents which usually significantly impacts the performance of photocatalysts in general.
Fabrication of electrospun BaTiO3/chitosan/PVA nanofibers and application for dye-sensitized solar cells
Authors: Van-Pham Dan-Thuy , Phat Vien Vinh , Hoa Nguyen Thi Quynh , Ngoc Nguyen Hong , Thao Ngan Duong Thi , Don Ta Ngoc , Mai Ngo Truong Ngoc , Quyen Tran Thi Bich , Thien Doan Van Hong 
Published: December 2021

Abstract
Perovskite BaTiO3 nanoparticles were synthesized by a hydrothermal method. BaTiO3/chitosan (CS)/Polyvinyl alcohol (PVA) nanofibers with an average diameter of 265.3 ± 52 nm were fabricated via an electrospinning method. The nanofibers were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transformation infrared spectroscopy (FTIR), and thermal analysis method (TGA). The photoanodes of dye-sensitized solar cells (DSSC) were fabricated based on the BaTiO3/CS/PVA nanofibers. The photovoltaic properties of the cells were calculated based on the current density – voltage curves. The maximum power conversion efficiency of DSSC with CS/PVA/BaTiO3 nanofibers was 0.49% with the natural dye sensitizer extracted from the leaf of the magenta plant.
Study on antibacterial papermaking for food packaging using rice straw nanocellulose and nanochitosan
Authors: Cuong Thai Dinh , Linh Nguyen Viet , Chung Nguyen Hoang , Dien Le Quang 
Published: December 2021

Abstract
In this study, the antibacterial bleached hardwood kraft pulp-based paper sheets with a base weight of around 125 g/m2 were made with surface sizing by a mixture of oxidated starch and additives from acetic acid-treated nanochitosan and nanocellulose prepared from limited hydrolysis of rice straw by dilute sulfuric acid with added hydrogen peroxide. The characteristics of nanomaterials were analyzed by SEM and XRD. The barrier and antibacterial properties of paper were investigated to assess their ability to contain liquid and food products. Using the sizing mixture which has a solids content of 8% with additives improved the mechanical strength of the paper. The best value of tearing strength of 18.94 mN.m2/g was obtained with adding of 0.5% of nanocellulose and 1.5% of nanochitosan. The burst index of paper reached its highest value of 5.07 kP.m2/g when both nanocellulose and nanochitosan were used at the dosages of 1.0%. The antibacterial features on E. coli clearly showed in papers with 2% of nanochitosan or with the mixture of 1% nanocellulose and 1% nanochitosan addition.
Synthesis of nano zinc oxide and its effect on the cure characteristic and properties of natural rubber vulcanizates
Authors: Thuong Nghiem Thi , Tu Pham Ho Anh , Trung Nguyen Hoang , Hung Dang Viet , Long Nguyen Han 
Published: December 2021

Abstract
In this work, nano ZnO was synthesized by a simple method using a polymeric substance as a dispersing agent. Characterization of the synthesized ZnO by XRD and SEM confirmed the ZnO was nanometric in size and had a wurtzite structure. The synthesized nano ZnO was used as an activator for natural rubber vulcanization. Different amount of ZnO, 1, 2 and 3 phr, was investigated in the rubber formulation and compared to convention ZnO at a typical amount (6 phr). The sample with 3 phr nano ZnO showed the lowest curing induction time with the highest (ML-MH) at all studied temperatures. Furthermore, the rubber sample with 3 phr ZnO achieved the best properties, i.e., crosslink density, rebound resilience, and hardness compared to the rubber sample with 6 phr conventional ZnO. Interestingly, the properties of rubber sample with 2 phr nano ZnO were probably equivalent and comparable to that of 6 phr conventional ZnO. Thus, it suggested that the synthesized nano ZnO could replace the convention ZnO as an activator for rubber vulcanization even at a lower amount.
Assessment of methyl ester as a green carrier solvent in pesticide emulsifiable concentrate formulation
Authors: Tran Nguyen Hoc , Hieu Thai Van Trung , Dang-Bao Trung , Anh Tran Thi Kieu 
Published: December 2021

Abstract
The conventional pesticide emulsifiable concentrate (EC) formulations usually contain a large amount of aromatic solvents. This causes adverse effects to environment and human health due to the toxicity of such organic solvents. In this study, a cypermethrine 25EC formulation was developed using methyl ester as a green solvent. The physicochemical characterizations, emulsion properties and storage stabilities of the methyl ester EC formulations were investigated and compared with those of the EC formulation using naphtha A100 as a solvent, evidencing excellent emulsion properties and storage stabilities of such methyl ester EC formulations.
For which functions are 𝑓(𝑋_{𝑡})-𝔼𝕗(𝕏_{𝕥}) and 𝕘(𝕏_{𝕥})/𝔼𝕘(𝕏_{𝕥}) martingales?
Authors: Kühn F. , Schilling R. 
Published: December 2021

Let

X
=
(

X
t

)

t
≥
0

X=(X_t)_{t\geq 0}

be a one-dimensional Lévy process such that each

X
t

X_t

has a

C
b
1

C^1_b

-density w. r. t. Lebesgue measure and certain polynomial or exponential moments. We characterize all polynomially bounded functions

f
:

R

→

R

f\colon \mathbb {R}\to \mathbb {R}

, and exponentially bounded functions

g
:

R

→
(
0
,
∞
)

g\colon \mathbb {R}\to (0,\infty )

, such that

f
(

X
t

)
−

E

f
(

X
t

)

f(X_t)-\mathbb {E} f(X_t)

, resp.

g
(

X
t

)

/

E

g
(

X
t

)

g(X_t)/\mathbb {E} g(X_t)

, are martingales.
‘Who Is My Research for?’: Researcher Perceptions of the Research–Practice Relationship
Authors: Sato Masatoshi , Loewen Shawn , Pastushenkov Dmitrii 
Published: December 2021

AbstractThis study investigated second language (L2) researchers’ perceptions of the research–practice relationship. While research use (or lack thereof) in the classroom has been debated by researchers for decades, researchers have rarely investigated themselves as stakeholders in the relationship. However, it is vital to know researchers’ approaches to the issue so that collaborative researcher-practitioner relationships may be fostered. Hence, the current survey study explored: (a) L2 researchers’ identities; (b) their perceptions of the research–practice relationship; and (c) predictors of their perceptions. Participants were 217 researchers from 25 countries with 31 different first-language backgrounds. The results showed that L2 researchers’ identities often crossed multiple boundaries, as L2 learners, teachers, as well as researchers. A factor analysis showed that researchers held distinct beliefs for their own research (individual self) and for researchers in general (collective self). The regression models revealed that L2 teaching experience, pre-service teacher training experience, and institutional rewards positively predicted researchers’ perceptions of L2 practice. We argue that it is largely researchers’ responsibility to facilitate the research–practice dialogue.
GDF10 inhibits cell proliferation and epithelial–mesenchymal transition in nasopharyngeal carcinoma by the transforming growth factor-β/Smad and NF-κB pathways
Authors: He Feng , Feng Guofei , Ma Ning , Midorikawa Kaoru , Oikawa Shinji , Kobayashi Hatasu , Zhang Zhe , Huang Guangwu , Takeuchi Kazuhiko , Murata Mariko 
Published: December 2021

Abstract
Growth differentiation factor-10 (GDF10) belongs to a member of the transforming growth factor-β (TGF-β) superfamily. Dysfunction of the TGF-β pathway can lead to carcinoma progression. Previous studies have shown that GDF10 acts as a tumor suppressor gene in some cancers. However, the molecular mechanisms of the association between GDF10 and cell functions in nasopharyngeal carcinoma (NPC) remain unclear. In this study, the expression and methylation levels of GDF10 were studied in human subjects and cell lines. Furthermore, overexpression of GDF10 was used to explore its biological function and potential mechanism in NPC cell lines. GDF10 was downregulated in NPC owing to its aberrant promoter methylation. After treatment with 5-aza-2′-deoxycytidine, the expression of GDF10 in NPC cells was reversed. We also confirmed that the overexpression of GDF10 significantly inhibited cell proliferation and tumor growth both in vitro and in vivo, respectively. Additionally, GDF10 overexpression in NPC cells attenuated migration and invasion and inhibited epithelial-to-mesenchymal transition with a decrease in nuclear Smad2 and NF-κB protein accumulation. GDF10 was silenced owing to its promoter hypermethylation, and it might originally act as a functional tumor suppressor via TGF-β/Smad and NF-κB signaling pathways in NPC.
Maladaptive changes in delay discounting in males during the COVID-19 pandemic: the predictive role of functional connectome
Authors: Xiao Zhibing , Chen Zhiyi , Chen Wanting , Gao Wei , He Li , Wang Qiang , Lei Xu , Qiu Jiang , Feng Tingyong , Chen Hong , Turel Ofir , Bechara Antoine , He Qinghua 
Published: December 2021

Abstract
The Coronavirus disease of 2019 (COVID-19) and measures to curb it created population-level changes in male-dominant impulsive and risky behaviors such as violent crimes and gambling. One possible explanation for this is that the pandemic has been stressful, and males, more so than females, tend to respond to stress by altering their focus on immediate versus delayed rewards, as reflected in their delay discounting rates. Delay discounting rates from healthy undergraduate students were collected twice during the pandemic. Discounting rates of males (n=190) but not of females (n=493) increased during the pandemic. Using machine learning, we show that prepandemic functional connectome predict increased discounting rates in males (n=88). Moreover, considering that delay discounting is associated with multiple psychiatric disorders, we found the same neural pattern that predicted increased discounting rates in this study, in secondary datasets of patients with major depression and schizophrenia. The findings point to sex-based differences in maladaptive delay discounting under real-world stress events, and to connectome-based neuromarkers of such effects. They can explain why there was a population-level increase in several impulsive and risky behaviors during the pandemic and point to intriguing questions about the shared underlying mechanisms of stress responses, psychiatric disorders and delay discounting.
Judicial Quality, Input Customisation, and Trade Margins: The Role of Product Quality
Authors: Cui Xiaomin , Yu Miaojie , Zhang Rui 
Published: December 2021

Abstract
We study how the contracting environment affects the quality of trade. A better contracting environment not only induces specialisations in industries intensively using customised inputs, but also causes quality upgrading of domestic varieties and tougher competition in these industries. We incorporate these effects into a Ricardian model with customised input and product quality. Our model predicts that better judicial quality raises a country’s import prices and quality more in contract-intensive products, but has no impacts on its export prices or quality. We empirically confirm these predictions and find that rising judicial quality is associated with increasing specialisations in contract-intensive industries.
Molecular mechanisms for environmentally induced and evolutionarily rapid redistribution (plasticity) of meiotic recombination
Authors: Protacio Reine U , Mukiza Tresor O , Davidson Mari K , Wahls Wayne P 
Published: December 2021

Abstract
It has long been known (circa 1917) that environmental conditions, as well as speciation, can affect dramatically the frequency distribution of Spo11/Rec12-dependent meiotic recombination. Here, by analyzing DNA sequence-dependent meiotic recombination hotspots in the fission yeast Schizosaccharomyces pombe, we reveal a molecular basis for these phenomena. The impacts of changing environmental conditions (temperature, nutrients, and osmolarity) on local rates of recombination are mediated directly by DNA site-dependent hotspots (M26, CCAAT, and Oligo-C). This control is exerted through environmental condition-responsive signal transduction networks (involving Atf1, Pcr1, Php2, Php3, Php5, and Rst2). Strikingly, individual hotspots modulate rates of recombination over a very broad dynamic range in response to changing conditions. They can range from being quiescent to being highly proficient at promoting activity of the basal recombination machinery (Spo11/Rec12 complex). Moreover, each different class of hotspot functions as an independently controlled rheostat; a condition that increases the activity of one class can decrease the activity of another class. Together, the independent modulation of recombination rates by each different class of DNA site-dependent hotspots (of which there are many) provides a molecular mechanism for highly dynamic, large-scale changes in the global frequency distribution of meiotic recombination. Because hotspot-activating DNA sites discovered in fission yeast are conserved functionally in other species, this process can also explain the previously enigmatic, Prdm9-independent, evolutionarily rapid changes in hotspot usage between closely related species, subspecies, and isolated populations of the same species.
Characterization of the novel optrA-carrying pseudo-compound transposon Tn7363 and an Inc18 plasmid carrying cfr(D) in Vagococcus lutrae
Authors: Zhu Yao , Yang Wenlin , Schwarz Stefan , Xu Qiu , Yang Qin , Wang Lingli , Liu Siguo , Zhang Wanjiang 
Published: December 2021

Abstract

Objectives
To investigate the genetic context and transferability of the oxazolidinone resistance genes cfr(D) and optrA in a porcine Vagococcus lutrae isolate.

Methods
V. lutrae isolate BN31 was screened for the presence of known oxazolidinone resistance genes via PCR assays. Conjugation experiments were carried out to assess horizontal transferability of resistance genes. WGS was performed using a combination of Nanopore MinION and Illumina HiSeq platforms. Detection of a translocatable unit (TU) was conducted by PCR.

Results
V. lutrae isolate BN31 harboured the oxazolidinone resistance genes cfr(D) and optrA. The optrA gene, together with the phenicol resistance gene fexA, was located on a novel pseudo-compound transposon, designated Tn7363. Tn7363 was bounded by two copies of the new insertion sequence ISVlu1, which represented a new member of the ISL3 family. A TU, comprising one copy of ISVlu1 and the segment between the two IS elements including the optrA gene, was detected. The cfr(D) gene and an erm(B) gene were identified on the broad-host-range Inc18 plasmid pBN31-cfrD, a pAMβ1-like plasmid. Similar to plasmid pAMβ1, plasmid pBN31-cfrD was conjugative.

Conclusions
To the best of our knowledge, we report the first identification of the cfr(D) and optrA in Vagococcus. Two novel oxazolidinone resistance gene-carrying mobile genetic elements, Tn7363 and pBN31-cfrD, were identified in V. lutrae BN31. Considering their transmission potential, attention should be paid to the risk of transfer of the optrA and cfr(D) genes from V. lutrae to clinically more important bacterial pathogens.
Nanoforms of essential metals: from hormetic phytoeffects to agricultural potential
Authors: Kolbert Zsuzsanna , Szőllősi Réka , Rónavári Andrea , Molnár Árpád 
Published: December 2021

AbstractVital plant functions require at least six metals (copper, iron, molybdenum, manganese, zinc, and nickel), which function as enzyme cofactors or inducers. In recent decades, rapidly evolving nanotechnology has created nanoforms of essential metals and their compounds (e.g. nZnO, nFe2O3) with a number of favourable properties over the bulk materials. The effects of nanometals on plants are concentration-dependent (hormesis) but also depend on the properties of the nanometals, the plant species, and the treatment conditions. Here, we review studies examining plant responses to essential nanometal treatments using a (multi)omics approach and emphasize the importance of gaining a holistic view of the diverse effects. Furthermore, we discuss the beneficial effects of essential nanometals on plants, which provide the basis for their application in crop production as, for example, nanopriming or nanostimulator agents, or nanofertilizers. As lower environmental impact and increased yield can be achieved by the application of essential nanometals, they support sustainable agriculture. Recent studies have actively examined the utilization of green-synthesized metal nanoparticles, which perfectly fit into the environmentally friendly trend of future agriculture. Further knowledge is required before essential nanometals can be safely applied in agriculture, but it is a promising direction that is timely to investigate.