bluuebunny/crossref_metadata_2025 huggingface dataset:
Chemical composition and biological activity of Peucedanum dhana A. Ham essential oil
Authors: Khruengsai Sarunpron , Sripahco Teerapong , Rujanapun Narawadee , Charoensup Rawiwan , Pripdeevech Patcharee
Published: September 2021

The essential oil was extracted from Peucedanum dhana A. Ham, which grows in Thailand, using a Clevenger apparatus, resulting in an oil yield of 0.76% w/w. Forty-two compounds were identified using gas chromatography-mass spectrometry. The major compounds were trans-piperitol (51.23%), β-pinene (11.72%), o-cymene (11.12%), γ-terpinene (9.21%), and limonene (4.91%). The antimicrobial activity of the P. dhana essential oil was investigated by measuring the inhibition zone diameter, minimum inhibitory concentration (MIC), and minimum microbicidal concentration (MMC). The inhibition zone diameters of P. dhana essential oil (1000 µg/mL) against tested pathogens ranged from 10.70 to 40.80 mm. Significant antimicrobial activity against tested pathogens was obtained, with MIC and MMC values of 62.50–250 µg/mL and 250–1000 µg/mL, respectively. Escherichia coli, Pseudomonas aeruginosa, and Enterobacter aerogenes exposed to P. dhana essential oil at the MIC were analysed by flow cytometry using propidium iodide (PI) and SYTO9 to assess membrane integrity compared to trans-piperitol and β-pinene. After 24 h, treatments with trans-piperitol resulted in the most significant cell membrane alteration and depolarization followed by P. dhana essential oil and β-pinene, respectively. It was demonstrated that the P. dhana essential oil presented antibacterial action against E. coli, P. aeruginosa, and E. aerogenes. The antioxidant activity of P. dhana essential oil was measured using 2,2-diphenyl-2-picrylhydrazyl (DPPH) and 2,2-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium (ABTS) scavenging activity assays. The IC50 values obtained from the DPPH and ABTS methods were 9.13 and 9.36 mg/mL, respectively. The cytotoxic effect of P. dhana oil was tested against human colonic adenocarcinoma (SW480), human lung adenocarcinoma (A549), cervical cancer (Hela), and murine fibroblast (3T3L1) cells using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The essential oil had cytotoxicity against all cancer cells, with significant cytotoxicity towards SW480 cells. As a control experiment, two pure compounds—trans-piperitol and β-pinene, were also tested for their antimicrobial, antioxidant, and cytotoxic activity. Both compounds showed varied activity in all assays. The results indicate that P. dhana essential oil could be used as a source of functional ingredients in food and pharmaceutical applications.
Insights into population behavior during the COVID-19 pandemic from cell phone mobility data and manifold learning
Authors: Levin Roman , Chao Dennis L. , Wenger Edward A. , Proctor Joshua L.
Published: September 2021

Understanding the complex interplay between human behavior, disease transmission and non-pharmaceutical interventions during the COVID-19 pandemic could provide valuable insights with which to focus future public health efforts. Cell phone mobility data offer a modern measurement instrument to investigate human mobility and behavior at an unprecedented scale. We investigate aggregated and anonymized mobility data, which measure how populations at the census-block-group geographic scale stayed at home in California, Georgia, Texas and Washington from the beginning of the pandemic. Using manifold learning techniques, we show that a low-dimensional embedding enables the identification of patterns of mobility behavior that align with stay-at-home orders, correlate with socioeconomic factors, cluster geographically, reveal subpopulations that probably migrated out of urban areas and, importantly, link to COVID-19 case counts. The analysis and approach provide local epidemiologists a framework for interpreting mobility data and behavior to inform policy makers’ decision-making aimed at curbing the spread of COVID-19.
Regio-divergent nickel catalysis: intramolecular [4+2] and [2+2] cycloaddition reactions between vinylallenes and alkynes
Authors: Arai Shigeru , Inagaki Saki , Nakajima Masaya , Nishida Atsushi
Published: September 2021

Vinylallenes have been recognized as versatile C2 and C4 components for nickel-catalyzed intramolecular [4+2] and [2+2] cycloadditions.
Thermally activated delayed fluorescence materials as organic photosensitizers
Authors: Polgar Alexander M. , Hudson Zachary M.
Published: September 2021

The use of thermally activated delayed fluorescence molecules as photosensitizers is covered with emphasis on strategies employed to control their excited state behaviour to suit a particular application.
Strain engineering of polar optical phonon scattering mechanism – an effective way to optimize the power-factor and lattice thermal conductivity of ScN
Authors: Panneerselvam Iyyappa Rajan , Kim Man Hea , Baldo Carlos , Wang Yan , Sahasranaman Mahalakshmi
Published: September 2021

Strain engineering of polar optical phonon scattering mechanism decreases the lattice thermal conductivity in ScN.
Selecting two-photon sequential ionization pathways in H2 through harmonic filtering
Authors: Sopena Arturo , Bachau Henri , Catoire Fabrice , Martín Fernando , Palacios Alicia
Published: September 2021

A frequency filter enhances ionization–excitation versus excitation–ionization, suppressing channels that prevent the extraction of the dynamical information in an experiment.
Early stages of aggregation in fluid mixtures of dimers and spheres: a theoretical and simulation study
Authors: Munaò Gianmarco , Prestipino Santi , Costa Dino
Published: September 2021

Aggregation in colloidal mixtures of asymmetric dimers and spheres is promoted by an effective competing interaction induced by short-range attraction (between spheres 1 and 3, gray halo) and long-range repulsion (due to the steric hindrance exerted by sphere 2).
Al-Doped magnetite encapsulated in mesoporous carbon: a long-lasting Fenton catalyst for CWPO of phenol in a fixed-bed reactor under mild conditions
Authors: Thirumoorthy K. , Gokulakrishnan B. , Satishkumar G. , Landau M. V. , Man M. Wong Chi , Oliviero E.
Published: September 2021

Al substituted magnetite was identified as a promising heterogeneous Fenton catalyst for CWPO of 200 ppm phenol in a continuous system under mild conditions (pH 5, 40 °C, 0.1 ml min−1, 1.2S H2O2) for 500 h with 80% TOC conversion, 1 ppm Fe leaching.
One-step calcination synthesis of WC–Mo2C heterojunction nanoparticles as novel H2-production cocatalysts for enhanced photocatalytic activity of TiO2
Authors: Gao Lulu , Liu Jinfeng , Long Haoyu , Wang Ping , Yu Huogen
Published: September 2021

A WC–Mo2C@C modified-TiO2 (WC–Mo2C@C/TiO2) photocatalyst was prepared by loading WC–Mo2C@C heterojunction nanoparticles on TiO2 surface and its H2-production rate was 90.3, 3.6, and 2.5 times higher than that of TiO2, Mo2C@C/TiO2, and WC@C/TiO2, respectively.
Overlapping fasten packing enables efficient dual-donor ternary organic solar cells with super stretchability
Authors: Wang Jianxiao , Han Chenyu , Bi Fuzhen , Huang Da , Wu Yuanwei , Li Yonghai , Wen Shuguang , Han Liangliang , Yang Chunming , Bao Xichang , Chu Junhao
Published: September 2021

The good planarity and small steric hindrance of PBB1-Cl can enhance the intermolecular overlapping fasten packing in active layer to improve the photovoltaic performance, mechanical and thermal stability of OSCs.
Sulfated polysaccharides from pacific abalone attenuated DSS-induced acute and chronic ulcerative colitis in miceviaregulating intestinal micro-ecology and the NF-κB pathway
Authors: Jia Jinhui , Zhang Panpan , Zhang Chenxi , Jiang Guoping , Zheng Weiyun , Song Shuang , Ai Chunqing
Published: September 2021

Due to potential side effects of current drugs in colitis treatment, polysaccharides with anti-inflammatory activities can be considered as alternative molecules for colitis treatment.
Lipid oxidation and aldehyde formation during in vitro gastrointestinal digestion of roasted scallop (Patinopecten yessoensis) – the role of added antioxidant of bamboo leaves
Authors: Hu Yuanyuan , Zhao Guanhua , Wang Jialiang , Liu Zhongyuan , Yin Fawen , Qin Lei , Zhou Dayong , Shahidi Fereidoon , Zhu Beiwei
Published: September 2021

Gastrointestinal digestion of roasted scallop increased lipid oxidation and aldehyde formation. Co-digestion of phenolic compounds effectively reduced this gastrointestinal oxidation.
Comparison of the matrix effect in laser induced breakdown spectroscopy analysis of coal particle flow and coal pellets
Authors: Yu Ziyu , Yao Shunchun , Jiang Yuan , Chen Weize , Xu Shuixiu , Qin Huaiqing , Lu Zhimin , Lu Jidong
Published: September 2021

Laser-induced breakdown spectroscopy analysis of coal particle flow presents milder matrix effect compared with coal pellet.
Correction: The detection of Al3+ and Cu2+ ions using isonicotinohydrazide-based chemosensors and their application to live-cell imaging
Authors: Song In-ho , Torawane Pritam , Lee Jung-Seop , Warkad Shrikant Dashrath , Borase Amulrao , Sahoo Suban K. , Nimse Satish Balasaheb , Kuwar Anil
Published: September 2021

Correction for ‘The detection of Al3+ and Cu2+ ions using isonicotinohydrazide-based chemosensors and their application to live-cell imaging’ by In-ho Song et al., Mater. Adv., 2021, DOI: 10.1039/d1ma00564b.
An integrated network analysis approach to identify potential key genes, transcription factors, and microRNAs regulating human hematopoietic stem cell aging
Authors: Randhawa Vinay , Kumar Manoj
Published: September 2021

A flowchart of the approach and its implementation for predicting HSC aging-related molecular regulators.
Gold labelling of a green fluorescent protein (GFP)-tag inside cells using recombinant nanobodies conjugated to 2.4 nm thiolate-coated gold nanoparticles
Authors: Groysbeck Nadja , Donzeau Mariel , Stoessel Audrey , Haeberle Anne-Marie , Ory Stéphane , Spehner Danièle , Schultz Patrick , Ersen Ovidiu , Bahri Mounib , Ihiawakrim Dris , Zuber Guy
Published: September 2021

A specific and non-covalent approach is reported to associate the targeting ability of nanobodies with the detectability of 2.4 nm gold nanoparticles for immunolabelling of cellular effectors using light and high-resolution electron microscopy.
A W1 computational study on the kinetics of initial pyrolysis of a biodiesel model: methyl propanoate
Authors: Abdel-Rahman Mohamed A. , El-Nahas Ahmed M. , Simmie John M. , Abdel-Azeim Safwat , El-Demerdash Safinaz H. , El-Meligy Asmaa B. , Mahmoud Mohamed A. M.
Published: September 2021

This work reports on the thermochemistry and kinetics of methyl propanoate (MePr) initial pyrolysis using the highab initiomulti-level composite W1 method over the temperature range 400–2000 K.
A minireview on chemical vapor deposition growth of wafer-scale monolayerh-BN single crystals
Authors: Li Lin , Zhang Ye , Zhang Ruijie , Han Ziyi , Dong Huanli , Yu Gui , Geng Dechao , Yang Hui Ying
Published: September 2021

Recent academic breakthroughs in chemical vapor deposition (CVD) depositedh-BN are presented. The techniques, catalysts, and mechanisms are fully studied. The great advances in expanding the size ofh-BN single crystals will largely push forward the way toh-BN.
Oxidation and Degradation of WS2 Monolayers Grown by NaCl-Assisted Chemical Vapor Deposition: Mechanism and Prevention
Authors: Chang Yao-Pang , Li Wei-Bang , Yang Yueh-Chiang , Lu Hsueh-Lung , Lin Ming-Fa , Chiu Po-Wen , Lin Kuang-I
Published: September 2021

Adjusting the orientation of the sapphire substrate to align the gas flow direction in the NaCl-assisted CVD process can improve the stability of monolayer WS2.
Designing Ru-doped Zn3V3O8 bifunctional OER and HER catalysts through a unified computational and experimental approach
Authors: Zhou Xuyan , Tang Xiaowei , Xu Haitao , Jiang Tao , Hu Kailong , Qiu Hua-Jun , Lin Xi
Published: September 2021

Precise control of Ru doping sites on Zn3V3O8 induces high catalytic activity. Specifically, the Ru-doped B-layer by replacing surface V shows the best OER catalytic effect, while the HER favors the Ru-doped D-layer by replacing surface Zn8.
Suppressing vanadium dissolution of V2O5via in situ polyethylene glycol intercalation towards ultralong lifetime room/low-temperature zinc-ion batteries
Authors: Lin Chunfa , Qi Fenqiang , Dong Huilong , Li Xiao , Shen Chunping , Ang Edison Huixiang , Han Yuqiang , Geng Hongbo , Li Cheng Chao
Published: September 2021

The polyethylene glycol pre-intercalated vanadium oxide composites deliver superior zinc-ion storage properties with high specific capacity, stable cycling capability, excellent rate and low-temperature performance.
Cationic tungsten imido alkylidene N-heterocyclic carbene complexes for stereospecific ring-opening metathesis polymerization of norbornene derivatives
Authors: Musso Janis V. , Benedikter Mathis , Gebel Paul , Gramm Vincent , Wang Dongren , Schowner Roman , Buchmeiser Michael R.
Published: September 2021

Cationic W alkylidene N-heterocyclic carbene complexes allow for the stereospecific ring-opening metathesis polymerization of norbornenes with high trans-iso- and high cis-syndiospecificity, respectively.
Robust hollow TiO2 spheres for lithium/sodium ion batteries with excellent cycling stability and rate capability
Authors: Yao Menglong , Wang Hongkang , Qian Ruifeng , Yao Tianhao , Shi Jian-Wen , Cheng Yonghong
Published: September 2021

We report a facile solvothermal synthesis of hollow TiO2 nanospheres using phenolic resin nanospheres as templates under magnetic stirring condition, followed by annealing, which demonstrate excellent lithium/sodium storage performance.
Stereoselective synthesis of fluoroalkylated (Z)-alkene via nickel-catalyzed and iron-mediated hydrofluoroalkylation of alkynes
Authors: Li Xiang-Rui , Li Wen-Xin , Zhang Zhuo-Wen , Shen Chuanji , Zhou Xiaocong , Chu Xue-Qiang , Rao Weidong , Shen Zhi-Liang
Published: September 2021

An efficient nickel-catalyzed, iron-mediated hydrofluoroalkylation of alkynes with bromodifluoroacetate or perfluoroalkyl iodide, which proceeded smoothly to give fluoroalkylated (Z)-alkenes with high stereocontrol (up to 99 : 1 Z/E), was developed.
Barium promoted Ni/Sm2O3 catalysts for enhanced CO2 methanation
Authors: Ayub Nur Athirah , Bahruji Hasliza , Mahadi Abdul Hanif
Published: September 2021

Low temperature CO2 methanation on 5Ni–5Ba/Sm2O3 is a favorable pathway to achieve high selectivity to methane while increasing the stability of the catalysts.
Polytorsional-amide/carboxylates-directed Cd(ii) coordination polymers exhibiting multi-functional sensing behaviors
Authors: Chi Jie , Mu Yajun , Li Yan , Shao Pengpeng , Liu Guocheng , Cai Bin , Xu Na , Chen Yongqiang
Published: September 2021

Three (3,5)-connected Cd(ii) coordination polymers induced by polytorsional-amide/carboxylates exhibiting controllable multifunctional fluorescent sensing activities.
A biomimetic orthogonal-bilayer tubular scaffold for the co-culture of endothelial cells and smooth muscle cells
Authors: Li Mei-Xi , Li Lei , Zhou Si-Yuan , Cao Jian-Hua , Liang Wei-Hua , Tian Ye , Shi Xue-Tao , Yang Xiu-Bin , Wu Da-Yong
Published: September 2021

To mimic blood vessels, a polycaprolactone tubular scaffold was prepared via electrospinning and winding. Endothelial cells were cultured on the inner layer with axial nanofibers and smooth muscle cells were cultured on the outer layer with circumferential nanofibers.
Interpenetrating network nanoarchitectonics of antifouling poly(vinylidene fluoride) membranes for oil–water separation
Authors: Guo Yongqiang , Liu Chao , Xu Wei , Liu Guangli , Xiao Ke , Zhao Hua-Zhang
Published: September 2021

A simple strategy was proposed to construct PVDF-g-PEG membranes with an interpenetrating network structure.
New total synthesis and structure confirmation of putative (+)-hyacinthacine C3 and (+)-5-epi-hyacinthacine C3
Authors: Dikošová Lívia , Otočková Barbora , Malatinský Tomáš , Doháňošová Jana , Kopáčová Mária , Ďurinová Anna , Smutná Lucie , Trejtnar František , Fischer Róbert
Published: September 2021

A second total synthesis of (+)-hyacinthacine C3 is reported. As a result, structure of the first synthetically prepared alkaloid is proved to be correct, clearly confirming the inconsistency with the stereochemistry assigned to the natural sample.
Superhydrophobic cotton fabric membrane prepared by fluoropolymers and modified nano-SiO2used for oil/water separation
Authors: Hou Chengmin , Cao Congjun
Published: September 2021

Cotton modified with polymer P(GMA-r-MMA)-g-PFPA and modified silica can obtain super-hydrophobic surfaces, and can be used as oil–water separation membrane for hexane, octane, kerosene, chloroform and water mixtures in batch and continuous operation.
Reductive electrophilic C–H alkylation of quinolines by a reusable iridium nanocatalyst
Authors: Xie Rong , Mao Wenhui , Jia Huanhuan , Sun Jialu , Lu Guangpeng , Jiang Huanfeng , Zhang Min
Published: September 2021

By developing a heterogeneous iridium catalyst composed of a N-doped SiO2/TiO2support and Ir-species (Ir/N-SiO2/TiO2), its application in reductive electrophilic alkylation of quinolines with various aryl carbonyls or benzyl alcohols is presented.
A comprehensive analysis in one run – in-depth conformation studies of protein–polymer chimeras by asymmetrical flow field-flow fractionation
Authors: Kaupbayeva Bibifatima , Murata Hironobu , Matyjaszewski Krzysztof , Russell Alan J. , Boye Susanne , Lederer Albena
Published: September 2021

Precise characterization of structural parameters and their polydispersities of protein–polymer conjugates is performed with rapid analysis using asymmetrical flow field-flow fractionation coupled with multiple detectors.
Nanofluidic osmotic power generators – advanced nanoporous membranes and nanochannels for blue energy harvesting
Authors: Laucirica Gregorio , Toimil-Molares María Eugenia , Trautmann Christina , Marmisollé Waldemar , Azzaroni Omar
Published: September 2021

Advanced nanostructured membranes with high ion flux and selectivity bring new opportunities for generating clean energy by exploiting the osmotic pressure difference between water sources of different salinities.
Thermogalvanic energy harvesting from forced convection cooling of 100–200 °C surfaces generating high power density
Authors: Ikeda Yutaka , Cho Yuki , Murakami Yoichi
Published: September 2021

Realistically useful level 10 W m−2 electric power generation is demonstrated during liquid cooling of a heat releasing surface using a thin thermal boundary layer and thermally stable electrolyte flowing between non-isothermal electrodes.
Extremely stretchable and tough hybrid hydrogels based on gelatin, κ-carrageenan and polyacrylamide
Authors: Sun Xingyue , Ye Lina , Liang Haiyi
Published: September 2021

Nowadays, several approaches are being suggested to endow hydrogels with improved mechanical properties for practical applications as cartilage and skin replacements, soft electronics, and actuators.
Scaling laws to predict humidity-induced swelling and stiffness in hydrogels
Authors: Gao Yiwei , Chai Nicholas K. K. , Garakani Negin , Datta Sujit S. , Cho H. Jeremy
Published: September 2021

We use semi-dilute polymer theory to develop a simple power-law relationship between hydrogel elastic modulus and swelling, allowing us to predict hydrogel stiffness or swelling at arbitrary relative humidities.
Boosting oxygen evolution activity of NiFe-LDH using oxygen vacancies and morphological engineering
Authors: Liu Shuxuan , Zhang Huiwen , Hu Enlai , Zhu Tuyuan , Zhou Chunyan , Huang Yingchong , Ling Min , Gao Xuehui , Lin Zhan
Published: September 2021

Oxygen vacancy-rich hierarchical NiFe LDH microtubes with excellent intrinsic conductivity and stability exhibit fantastic OER activity.
Efficient electrochemical water oxidation to hydrogen peroxide over intrinsic carbon defect-rich carbon nanofibers
Authors: Sun Yanhui , Chen Xin , Ning Shangbo , Zhou Wei , Yang Zhongshan , Cui Jiwei , Wang Defa , Ye Jinhua , Liu Lequan
Published: September 2021

Carbon nanofibers enriched in ring-defects significantly promote electrochemical water oxidation to hydrogen peroxide.
Physicochemical and electrochemical characterization of salt-in-water and water-in-salt potassium and lithium acetate electrolytes
Authors: Amiri Mona , Bélanger Daniel
Published: September 2021

Electrochemical stability window, double layer capacitance, as well as electron transfer kinetics and transport properties of ferricyanide redox species in potassium and lithium acetate electrolytes were evaluated using electrodes like HOPG and GCE.
Laminin-511 and recombinant vitronectin supplementation enables human pluripotent stem cell culture and differentiation on conventional tissue culture polystyrene surfaces in xeno-free conditions
Authors: Liu Ya-Chu , Ban Lee-Kiat , Lee Henry Hsin-Chung , Lee Hsin-Ting , Chang Yu-Tang , Lin Yun-Ting , Su Her-Young , Hsu Shih-Tien , Higuchi Akon
Published: September 2021

Human pluripotent stem cells can be successfully cultured for long passages on uncoated tissue culture polystyrene (TCP) dishes in xeno-free medium supplemented with optimal ratio and concentration of laminin-511 and recombinant vitronectin.
Tuning the antiaromatic character and charge transport of pentalene-based antiaromatic compounds by substitution
Authors: Wu Jianglin , Chen Yao , Liu Jueshan , Pang Zhenguo , Li Guoping , Lu Zhiyun , Huang Yan , Facchetti Antonio , Marks Tobin J.
Published: September 2021

Substituting electron-donating and electron-accepting substituents on antiaromatic pentalene cores can significantly tune the optical absorption, energy levels, antiaromaticity, and transistor switch-on behavior.
Reinforcement of double built-in electric fields in spiro-MeOTAD/Ga2O3/Si p–i–n structure for a high-sensitivity solar-blind UV photovoltaic detector
Authors: Yan Zuyong , Li Shan , Yue Jianying , Ji Xueqiang , Liu Zeng , Yang Yongtao , Li Peigang , Wu Zhenping , Guo Yufeng , Tang Weihua
Published: September 2021

The spiro-MeOTAD/Ga2O3/Si p–i–n structure was developed for a high-sensitivity solar-blind UV photodetector.
Adaptive super‐twisting algorithm‐based fractional‐order sliding mode control of redundantly actuated cable driving parallel robot with uncertainty and disturbance estimation
Authors: Zhengsheng Chen , Xuesong Wang , Yuhu Cheng
Published: September 2021

This paper proposed an adaptive super‐twisting (AST)‐based fractional‐order sliding mode control algorithm under disturbances for redundantly actuated cable driving parallel robots. A novel fractional‐order non‐singular fast terminal sliding mode surface is constructed, and the fast response convergence and accuracy tracking performance can be obtained in the sliding mode phase; meanwhile, an auxiliary system is designed to overcome the adverse effects of the input saturation. Then, to compensate for the model uncertainty and external disturbances, the uncertainty and disturbance estimation is designed, and a novel AST algorithm is developed to suppress the estimation error without the known bound of the adaptive gains and guarantee the finite‐time convergence in the reaching phase. The Lyapunov stability theory is employed to prove the convergence of the proposed controller. Finally, numerical simulations are conducted in the commercial software of MATLAB/SIMULINK to demonstrate the effectiveness of the proposed controller.
Three-dimensional shear velocity structure of the Mauléon and Arzacq Basins (Western Pyrenees)
Authors: Lehujeur Maximilien , Chevrot Sébastien , Villaseñor Antonio , Masini Emmanuel , Saspiturry Nicolas , Lescoutre Rodolphe , Sylvander Matthieu ,   The Maupasacq Working Group
Published: September 2021

We present a 3-D shear wave velocity model of the Mauléon and Arzacq Basins from the surface down to 10 km depth, inverted from phase velocity maps at periods between 2 and 9 s. These phase velocity maps were obtained by analyzing coherent surface wave fronts extracted from ambient seismic noise recorded by the large-N Maupasacq seismic array with a matched filtering approach. This new model is in good agreement with a local earthquake tomography study performed on the same acquisition dataset. Our passive imaging models reveal the upper crustal architecture of the Mauléon and Arzacq Basins, with new details on the basement and its relationship with the overlying sedimentary cover. Combining these new tomographic images with surface and subsurface geological information allows us to trace major orogenic structures from the surface down to the basement. In the basin, the models image the first-order basin architecture with a kilometric resolution. At depth, high velocity anomalies suggest the presence of dense deep crustal and mantle rocks in the hanging wall of north-vergent Pyrenean Thrusts. These high velocity anomalies spatially coincide with a positive gravity anomaly in the western Mauléon Basin. In addition, our models reveal major changes from the Chaînons Béarnais to the western Mauléon Basin across a set of orogen-perpendicular structures, the Saison and the Barlanès transfer zones. These changes reflect the along-strike variation of the orogenic evolution that led to the preservation of the former rifted domain and its underlying mantle in the orogenic wedge of the Western Pyrenees. We discuss the implications of these results for the 3-D architecture of the Mauléon Basin and its underlying basement.
West Java local rice panicle branching architecture
Authors: Perdhana Fyannita , Hastini Tri , Ishaq Iskandar
Published: September 2021

As local varieties of rice have a very important role as a source of valuable traits in developing high yielding variety through plant breeding programs, it is needed to be characterized. Panicle branching characterization is one of the efforts to understand local varieties of rice characteristics more. We have observed thirtheen characters of panicle branching on 24 West Java local rice varieties. Five panicles of each varieties as accession was observed and statistical analysed. Tukey’s Honest Significant Difference (HSD) test showed differences among accessions in all panicle branching characteristics observed. Based on Principles Component Analysis (PCA), the panicle branching characters observed generally showed the same direction, but among them were not always to be correlated. In the result of clustering based on the ward linkage method, the accessions were divided into two clusters. The first one had 8 members, and the second one had 16 members. The cophenetic correlation coefficient was 0.60, indicated that the clustering through standardized value was faithfully enough to represent the original distances. The result of this research can provide the information for breeder in selecting rice genotypes which have more seeds per panicle as parent in assembling new high yielding rice varieties.
Response of growth and production of potato plants to application of NPK fertilizer
Authors: Tulung Lydia E A , Amin Mirawanty , Manoppo Conny N
Published: September 2021

Fertilizer is one of the determining factors for the success of potato cultivation. Various types of fertilizers have been produced, but those that are suitable for regional conditions in North Sulawesi do not yet exist. The decreasing of potato production in North Sulawesi is due to the limited use of quality and certified seeds, as well as inappropriate fertilizer dosages. This research objective was to see the effect of NPK fertilization on the production of Medians potato plants. The research was conducted from August to December 2020, in Rurukan Village, East Tomohon District, Tomohon City, North Sulawesi. The experimental design used was randomized complete block design (RCBD) with seven treatments, namely the NPK fertilizer dosage of 0 kg ha-1 (P0), 150 kg ha-1 (P1), 300 kg ha-1 (P2), 450 kg ha-1 (P3), 600 kg ha-1 (P4), 750 kg ha-1 (P5) and 900 kg ha-1 (P6). Each treatment was repeated three times and resulting in 21 treatment plots. The results showed that application of NPK fertilizer of 450 kg ha-1 resulted the highest yields on the components of weight of fresh plant, tuber diameter, and potato productivity.
Effect of natural male and female (sex ratio) on nutmeg (Myristica fragrans) production on Maluku
Authors: Kaihatu Sheny , Pesireron Marietje , Ohorella Irfan , Senewe Rein E. , Waas Edwin D. , Gaffar Abd
Published: September 2021

The composition of males and females is very influential on the productivity of nutmeg plants. This research aimed to get the composition of male, female, and shade types related to the productivity of the nutmeg plant in the center of nutmeg in Maluku. Nested Design Three-Factor. Production centers are divided: Large Island, Medium Island and Small Island, determined as Factor A. Data on the number of trees Ratio male: female as factor B (B1 = ratio <1:10); (B2 = ratio 1:10 - 1:15); and (B3 = ratio> 1:20). Minimum of five female nutmeg samples for observation of production in a layered (Proportional Stratified Random Sample) harvest season in a year as a replication, namely Harvest I; Harvest II; and Harvest III. The results showed that the natural sex ratio of nutmeg was 1:10 in Small Island, Medium Island, and Big Island. The average productivity of nutmeg was 1,494, 1,465, and 1,296 fruit/tree/year, respectively. The farming system in Small Island was a monoculture of 100% shade plants, while in Medium and Big Island, the farming system was 33% - 50% shade plants and 50% - 67% other perennial crops.
Adaptation test of shade-tolerant soybean to fertilization technology in coconut plantations, Aceh Province
Authors: Asis  , Ferayanti Fenty , Idawanni  , Pakpahan Lamhot Edy
Published: September 2021

Soybean is an important commodity needed by people in Indonesian. Soybean production is currently decreasing every year because off decreasing land area. The available land in Indonesia is mostly used by farmers to cultivate crops that have the potential to meet their economic needs, so that very few farmers use their land for soybean crops. This study aimed to determine the adaptation of shade-tolerant soybean varieties to fertilization technology at various levels of shade coconut plant. The research was conducted at Bandar Baru District, Pidie Jaya Regency, Aceh Province on July to October 2019, with split plot design. The main plot is shade (N), namely N1: 0% shade (without shade); N2: 25% shade and N3: 50% shade, and subplot is the fertilizer package (P) namely P1: recommendation (NPK 150 kg ha-1, organic fertilizer 2 t ha-1); P2: specific location (urea 75 kg ha-1, SP-36 100 kg ha-1, KCl 100 kg ha-1). The results showed that the level of shade had no effect on soybean production, while the fertilization factor showed that the highest production was found in the recommended fertilizer package 1.82 t ha-1, different with the specific location fertilizer package.
Growth and yield of several rice varieties in swampland agroecosystems in Mesuji Regency, Lampung Province
Authors: Slameto  , Meidaliyantisyah  , Irawati Arfi
Published: September 2021

Swampland agroecosystem is a potential area for rice extensification program in order to increase food production. This study aimed to examine the growth and yield of several rice varieties planted in swampland agroecosystems in Mesuji Regency, Lampung Province. The experiment was conducted from November 2020 until March 2021. The planting location was in Tanjung Mas Jaya Village, Mesuji Timur District, Mesuji Regency, Lampung Province. The rice varieties planted were IAARD’s Superior varieties (Cilamaya Muncul, Inpara-2, Inpara-8, and Inpari IR Nutrizinc), multinational varieties (Mapan and Supadi) and existing local variety (Kebo). The observed variables were components of the growth and production of rice plants. The data were analyzed using Duncan test. The results showed that the yield was significantly different between the rice varieties planted. The lowest rice yield was obtained from the Inpara-2 variety (7.573 ton ha-1of HDG). The highest yield of rice was in the Kebo variety (10.400 ton ha-1of HDG). In order to gain optimal rice production in an area, it is necessary to use superior varieties of rice that have been adaptive to the local area.
Performance model of community food business development in East Nusa Tenggara Province
Authors: Nona Reyna Virginia , Mea Maria Helena Carolinda Dua
Published: September 2021

Community Food Business Development (PUPM) is one of the Indonesian government’s programs to achieve food security. The role of farmers in PUPM are as producers, so they have an important role in realizing food security. This study aims to examine the performance model of PUPM based on the characteristics of production areas, consumption and entrepreneurship in realizing food security in East Nusa Tenggara (NTT) Province according to farmers’ perceptions. The sample was 93 farmers, coming from six Gapoktans that act as Community Food Business Institutions (LUPM). The data analysis technique used is descriptive statistics and non-parametric statistics, namely Partial Least Square (PLS). The results show that the PUPM performance model based on farmers’ perceptions has not been fully able to realize food security in NTT Province because it has only reached a sufficient level, the aspect of food availability has a very small contribution of 0.01%, while the aspects of access and utilization and stability have been fulfilled. Therefore, to realize food security in NTT through the PUPM performance model, the aspect of food availability needs to be improved and its performance improved.
The effect of local-based feed ration on the production and quality of duck eggs in Tanjungpinang, Riau Islands
Authors: Ahmad Salfina Nurdin , Yusriani Yeni , Sariffudin Apriyani Nur , Rambe Khoiru Rizqy , Alifia Annisa Dhienar , Oktavia Irma , Widodo Sugeng
Published: September 2021

The aim of the study was to determine effect of local feed on the production and quality of duck eggs in Tanjungpinang, Riau Islands. This study was conducted in Juli 2020 in Dompak Village, Tanjungpinang City. The material of research were Mojosari duck ages 38-48 weeks and local feed (feed A, B and C). This study used a non-experimental design using a survey method. Sampling using purposive sampling method. The parameter measured were egg weight, shell weight, shell thickness, yolk color and egg production. The data obtained were then compared to the average using the Mann-Whitney test. The results showed that the ration A treatment was not significantly different from ration B (P>0,05) but both were significantly different from ration C (P<0,05) in the physical quality parameters of eggs, while the parameters of egg production of the 3 treatments local feed had no significant effect (P>0,05). The highest duck egg production was obtained from ration B, which was 80 eggs per day. The conclusion of this study is that the treatment of local feed-based rations can affect the physical quality of Mojosari duck egg.
Analyzing the impact of agricultural donor aid on food security in West Africa
Authors: Sesay Lansana Alhassan , Gunawan Theresia , Pratikto Rulyusa , Prasetyo Pius Sugeng , Indraswari
Published: September 2021

Despite the abundance of agricultural donor aid to the less-developed nations, especially in West African countries, little is known regarding its role in enhancing food security. This study argues that the flow of aid to the productive sector would have a sustainable impact since it has a multiplier effect on the recipient countries by enhancing productivity in the agricultural sector. Therefore, by filling this gap, the research aims to analyze the impact of agricultural donor aid on food security in 16 West African countries between 2009-2018. The study adopted quantitative cross-country panel data and utilized the Two-Stage Least Square Regression model (2SLS) to examine to what extent agricultural aid has impacted food security in the sub-region. This method was adopted to address the endogeneity problems in this research model specification, where it is assumed that there is a reverse causality between donor aid and food security. The findings indicate that agricultural aid has impacts on food accessibility, and utilization in West Africa. This impact is based on good governance and the institutional qualities of recipient countries.
Constraints and benefits of KUB chicken cultivate in Central Java Province, Indonesia
Authors: Muslim Chairul , Agustian Adang , Perdana Resty P. , Aldillah Rizma , Darwis Valeriana
Published: September 2021

Indonesian Agency for Agricultural Research and Development has released the KUB (Kampung Unggul Balitbangtan) chicken to increase the contribution of local chickens to the national meat supply for community’s animal protein needs. This paper aims to determine the constraints and benefits of KUB chickens cultivating in Central Java Province. Data analysis was carried out using descriptive methods with qualitative and quantitative approaches. The R/C analysis results showed that breeders would get more significant profit by raising KUB chickens (2.38) compared to local native chickens (1.72). KUB chicken farming faces several obstacles, including suboptimal productivity of eggs and chicken meat, limited availability of KUB chicken seeds, inadequate location and size of the cage, attacks of poultry disease during the transition season and low access to bank credit. Therefore, it is advisable to cultivate KUB chickens in battery cages in a broader area to optimise the productivity and minimise mortality rates. The government can encourage seed resources management unit (UPBS) and collaborate with private companies and independent breeders to carry out KUB chicken breeding to increase the availability of KUB chicken seeds. The government is also expected to facilitate an access to bank credit for KUB chicken breeders, especially for business capital.
The consumer’s motivation towards online purchase intention of chicken meat during the Covid-19 pandemic
Authors: Andik Silvia Dewi Sagita , Daryanto Arief , Sembada Pria
Published: September 2021

The extent of the Corona virus or Covid-19 in various countries, including in Indonesia, has impacted numerous sectors. The Covid-19 pandemic will have potentially caused changes to the normal food system for chicken meat commodities in Indonesia. Among them is a shift in consumer behaviour in getting access to chicken meat. Consumers’ online purchase intention is seen as an appropriate alternative during the pandemic, especially for consumers in the red zones. This study was conducted to analyse factors that impact online purchase intention on Chicken meat during the pandemic. This research uses data survey of 316 consumers in Jakarta, Bogor, Depok (Red zone areas). The analysis used is SEM using AMOS software. The results show that there are situation impact and hedonic influence towards online purchase intention of the chicken meat during the pandemic. We provide recommendation for companies on how to address consumers purchase motives.
Feasibility of papaya merah delima farming in suburb area of Manado City
Authors: Malia Ibrahim Erik , Sondakh Joula O.M. , Kindangen Jantje G. , Rembang Jeanne , Rawung Jefny M. , Indrasti Rita
Published: September 2021

A Research has been conducted in Pandu Experimental Garden, Talawaan Bantik Village, North Sulawesi, in 2017-2019. It is located in suburb area of Manado City having high demand of fruits, mainly papaya The objectiveness of the research was to analyze the technical and financial feasibilities of papaya merah delima cultivated in urban area. There were 200 seedlings planted, spacing 2 m x 2.5. Technically analyzed the parameters such as plant height, stem gird, leaf number, flower number, and fruit setting. It was also compared with farmers method cultivated around the area. Statistically was analyzed by using t test. Financial analysis used R/C Ratio, BEP, and sensitivity. The results shown that the farming is technically and financially feasible. Moreover, the R/C Ratio 2,86, compared with farmer method 2,21. The benefit gotten for the 200 plants yearly is IDR33,542,000, furthermore, it is an opportunity for the farmer in the area to cultivate papaya merah delima as a main crop. Socially, beside the marketable of the fruit, the city’s consumers are interesting for the shape and the small size appearance.
Strategic of land resources management supporting agribusiness development in Aceh Province
Authors: Fitria Eka , Jaya Rachman , Rahmi Cut Hilda , Husaini
Published: September 2021

The objectives of this study were to obtain a strategy of the land resources management to support the development of agribusiness and to arrange a reliable policy to be implemented. The system approach was used, 4 experts were involved with background researchers, academicians and practitioners. Synthesized of the data using are Strength, Weakness, Opportunity, Threats (SWOT) and Analytical Hierarchy Process (AHP) techniques. The result of the study shows that based on the alternatives of the internal factors strategy is discusses increasing the sustainable land management, empowerment of community program through the development of eco-tourism village, implementing the Information Technology 4.0 and increasing the millennial-farmers capacity. An external factor involves determining the land agriculture-sustainable and improving the water management. Based on policy options by the strength: design a development village by primary commodity with weight 0.246, weakness: increasing the urbanization (0.226), opportunity: increasing the food demand (0.434) and from threats: agriculture productive land conversion trend (0.256). The implications managerial offered to agricultural stakeholder in Aceh Province for decreasing the urbanization through improvement the farmer’s capacity, especially on millennial farmers to response the increasing of food demand with efforts of decrease the agriculture-land conversion by optimization land-use and improvement crop-index.
Application of technology packages to improve seed production and profitability of garlic (Allium sativum L.)
Authors: Sugianti Titin , Hadiawati Lia , Nazam Moh. , Suriadi A.
Published: September 2021

The quality seed production is a main strategy to improve national garlic development. The study aim was to evaluate productivity and profitability of garlic seed production technology packages in Sembalun, East Lombok, Indonesia. There were three technology packages tested namely, the national recommendation package (A); site-specific recommendation package (B); and farmer practices (C) which was laid out in a randomized completely block design with 6 replications. The results showed that the fresh bulbs of the Sangga Sembalun garlic variety was significantly higher at packages A and B with 42.19 t ha-1 and 38.99 t ha-1 respectively, than that of package C (yield of 31.24 t ha-1). The pattern was consistent after seed stored for 12 weeks. Garlic seed production was profitable with R/C ratio values of 3.39; 3.34; and 2.99 on fresh bulbs for treatments A, B and C, respectively and 4.34, 4.85 and 4.31 on dry bulbs for treatments A, B and C, respectively. Technology package B was more profitable than A as indicated by MBCR value of 9.36 and 3.56 for treatment B and A, respectively. The breakeven point of both production and price of technology package B was 3.4 t ha-1 and Rp. 8,553 kg-1, respectively.
Potential and opportunities of nutmeg pericarp as functional foods
Authors: Suwarda Rosniyati , Suneth Risma Fira , Wahid  , Sondari Dewi
Published: September 2021

Nutmeg (Myristica fragrans Houtt) is a native plant of Banda Island known as the Spice Islands. Nutmeg fruit consists of the pericarp or rind, the seed kernel inside (nutmeg), and the nutmeg is a red lacy (aryl) covering the kernel (mace). Nutmeg pericarp contributing 80-85% of the total weight of the nutmeg fruit but its use is still not getting enough attention and a lot of it is wasted as agricultural waste which can pollute the environment. This is because the economic value is considered to be lower than the seeds and mace of nutmeg. This article aims to review the potential and oppurtunity benefits of nutmeg meat waste (pericarp) for human health and its application in functional foods. The method used in this paper is a literature review. The results show that, the pericarp has been reported to contain bioactive compounds similar to those of nutmeg and mace oil which have pharmacological values. Phytochemical compounds are beneficial to human health as anti-inflammatory, anti-diabetes, anti-microbial agents, antixidants, anti-depressants, anti-convulsants, and anti-cancer agents. Based on the composition, the pericarp is potentially used as a functional food to increase added value and reduce environmental pollution. In addition, the abundance of materials, relatively low prices, and the importance of healthy food for the health of the human provide opportunities for the development of functional foods based on bioactive compounds.
Potential land and technology recommendation for cacao in Papua, Indonesia
Authors: Malik Afrizal , Siska Widia , Wulanningtyas Heppy Suci , Rumbarar Merlin K. , Etikha Adhe Poppy Wira , Susanti Irma
Published: September 2021

Cacao is a primary commodity in the Keerom Regency, but production has been decreasing in recent years. Cacao cultivation on unsuitable land and without cutting-edge technology would impede efforts to increase its productivity. The study aimed to evaluate land suitability for cacao in Keerom Regency, Papua, and to suggest site-specific technologies. The study was carried out in the Keerom Regency of Papua in 2015. Land suitability assessment was carried out by matching data on land characteristics (climate, slope, soil type, and soil fertility) with land use requirements for cacao cultivation. The data was analyzed using geographic information systems. The result showed that 78.077 ha (8.60%) of the studied area were highly suitable for cacao cultivation, 123.645 ha (13.63%) was moderately suitable, and 389.603 ha (42.94%) was marginally suitable. About 316.082 ha (34,83%) of the studied area was classified as not-suitable. The recommendation technology for increasing cacao yields were fertilization, pruning, shade management, and individual terraces. Cultivation on suitable land and the application of technological innovations are expected to increase cacao production in Keerom Regency, Papua. The findings of this study could be used as a reference for policymakers to establish cacao development in the future.
Research methods of refined oil from peel calamondin (Citrus microcarpa) from Tien Giang Province, Vietnam
Authors: Van Tuan Nguyen , Cam Quyen Ngo Thi , Cang Mai Huynh
Published: September 2021

The research on extraction and refining of oil was conducted on the calamondin peels purchased in Thu Duc Market. Them originated from the province of Tien Giang in Viet Nam. The purpose of research evaluation of the quality of refined oil by refining methods such as deposition/filtration, crystallization - suctioning of oil, using Na2SO4 – filtering of oil, Na2SO4 - suctioning of oil, second extraction and combination all the above methods. The results showed that the initial moisture content of the material was 77.37%, and dry matter content was 8.46%. Extraction at optimum conditions is 60 minutes, 1/8 of raw material / solvent ratio (w / v), with fresh ingredients and raw material size is small at 1 ÷ 3.5 mm the highest oil content was obtained. The essential oil obtained contain a high content of Limonene (over 85%), which has been shown to be able to inhibit breast cancer, colorectal cancer, control heartburn and gastric reflux, and support the treatment of gallstones containing cholesterol.