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Articles de revues sur le sujet « Dipentene »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 31 juillet 2025

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1

Nikolaev, Artem N., Svetlana N. Skomorokhova, Elena M. Trifanova, and Alexander V. Kutchin. "INVESTIGATION OF DIPENTENE ISOLATION POSSIBILITY FROM TIRES PYROLYSIS OIL IN LEAD MELT." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 62, no. 2 (2019): 85–93. http://dx.doi.org/10.6060/ivkkt.20196202.5931.

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The work is aimed at experimental substantiation of dipentene (dl-limonene) extraction from pyrolysis liquid obtained by pyrolysis in the lead melt of tires of different brands. Pyrolysis liquid was isolated under conditions that reduce the sulfur content and increase the proportion of dipentene in the direct-contact reactor in the lead melt and in the temperature range of 400-470 °C. A method for extracting dipentene from pyrolytic liquid by distillation at normal pressure, in vacuum, and two-stage distillation (first with water vapor, then vacuum distillation) to obtain fractions enriched wi

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Jung, Uiyeong, and Sung-Seen Choi. "Variation in Abundance Ratio of Isoprene and Dipentene Produced from Wear Particles Composed of Natural Rubber by Pyrolysis Depending on the Particle Size and Thermal Aging." Polymers 15, no. 4 (2023): 929. http://dx.doi.org/10.3390/polym15040929.

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Tire wear particles (TWPs) are generated by friction between the road and the tire. TWPs are one of the major microplastics found in environmental samples, such as road dust, particulate matter (PM), and sediment. TWP contents in environmental samples are generally analyzed using the pyrolysis technique. Tire tread compounds of heavy vehicles are usually composed of natural rubber (NR). Isoprene and dipentene are the principal pyrolysis products of NR, and dipentene is employed as the key marker for the determination of the TWP contents. In this study, an NR abrasion specimen was thermally age

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Liu, Yanni, Yonghui Chen, Yikai Wang, et al. "Construction of Palladium Nanoparticles Modified Covalent Triazine Frameworks towards Highly-Efficient Dehydrogenation of Dipentene for p-Cymene Production." Catalysts 13, no. 9 (2023): 1248. http://dx.doi.org/10.3390/catal13091248.

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The generation of p-cymene from the catalytic dehydrogenation of dipentene is one of the most vital approaches for the synthesis of p-cymene in the chemical industry. Herein, CTF polymer was synthesized by an ionothermal method via using terephthalonitrile as monomer and NaCl-KCl-ZnCl2 ternary mixture as catalyst and solvent, and Pd/CTF catalyst was prepared by loading CTF matrix with Pd nanoparticles via a chemical reduction method. The as-obtained Pd/CTF catalyst with the loading amount of 5 wt% Pd showed remarkable catalytic activity in the dehydrogenation of dipentene to p-cymene with a hi

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Dai, Chuan Bo, Gao Feng Pan, Rui Duan Li, and Hua Wang. "The Study on Dipentene Hydrogenation Catalyst." Advanced Materials Research 550-553 (July 2012): 371–74. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.371.

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In this paper, we prepared Dipentene Hydrogenation Catalyst by impregnating, with activated alumina as catalyst carrier and nickel nitrate solution as soaking liquid. The objective of this study was to investigate the influences of the amount of nickel loading, calcination temperature and hydrogen reduction temperature on catalyst activity. The results show that the optimum parameters are: 21% of nickel loading, the calcination temperature of 550-650 °C, the hydrogen reduction temperature of 325-350 °C. The purity of p-menthane prepared under the conditions was more than 97 %, reaching special

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Martins, César, Margarida Gonçalo, and Saudade Gonçalo. "Allergic contact dermatitis from dipentene in wax polish." Contact Dermatitis 33, no. 2 (1995): 126–27. http://dx.doi.org/10.1111/j.1600-0536.1995.tb00516.x.

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Westaway, H., and J. F. Williams. "Composition of the dipentene fraction of C10H16 terpenes." Journal of Applied Chemistry 9, no. 8 (2007): 440–44. http://dx.doi.org/10.1002/jctb.5010090811.

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Mun, Sunhee, Hwansoo Chong, Jongtae Lee, and Yunsung Lim. "Characteristics of Real-World Non-Exhaust Particulates from Vehicles." Energies 16, no. 1 (2022): 177. http://dx.doi.org/10.3390/en16010177.

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The need to regulate the non-exhaust particulate matter (PM) emissions from vehicles has been discussed worldwide due to the bad environmental impact and the toxicity to the human body. In-depth studies have been precisely conducted on the analysis of the non-exhaust particulate matters, in particular, the amount of tire, brake and road wear particles and their proportion in the atmosphere. In this study, the influence of tire and road wear particles (TRWP) on PM in the atmosphere was investigated with tire and PM samples. The PM samples suspended in the atmosphere were collected with a high-v

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Tu, Jingjing, Zehua Wang, Fan Yang, et al. "The Female-Biased General Odorant Binding Protein 2 of Semiothisa cinerearia Displays Binding Affinity for Biologically Active Host Plant Volatiles." Biology 13, no. 4 (2024): 274. http://dx.doi.org/10.3390/biology13040274.

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Herbivorous insects rely on volatile chemical cues from host plants to locate food sources and oviposition sites. General odorant binding proteins (GOBPs) are believed to be involved in the detection of host plant volatiles. In the present study, one GOBP gene, ScinGOBP2, was cloned from the antennae of adult Semiothisa cinerearia. Reverse-transcription PCR and real-time quantitative PCR analysis revealed that the expression of ScinGOBP2 was strongly biased towards the female antennae. Fluorescence-based competitive binding assays revealed that 8 of the 27 host plant volatiles, including geran

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9

Danon, B., P. van der Gryp, C. E. Schwarz, and J. F. Görgens. "A review of dipentene (dl-limonene) production from waste tire pyrolysis." Journal of Analytical and Applied Pyrolysis 112 (March 2015): 1–13. http://dx.doi.org/10.1016/j.jaap.2014.12.025.

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Hwang, Hann-Jang, Chun-Hung Li, and Chun-Shan Wang. "Synthesis and properties of bismaleimide resin containing dicyclopentadiene or dipentene. VI." Polymer International 55, no. 11 (2006): 1341–49. http://dx.doi.org/10.1002/pi.2092.

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Rhodes, Christopher J. "Radiolabelling Measurements of Radicals Derived from Terpenoid Volatile Organic Conpounds (VOCs) Adsorbed in Porous Carbon." Progress in Reaction Kinetics and Mechanism 31, no. 3 (2006): 159–88. http://dx.doi.org/10.3184/146867806x197113.

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Radiolabelled free radicals were formed by the addition of muonium-a radioactive hydrogen atom with a positive muon as its nucleus-to α-pinene, β-pinene, dihydrocarvone, dihydrocarveol and dipentene, each as adsorbed in porous carbon. The radicals were identified using transverse-field muon spin rotation (TF-MuSR) and the activation parameters associated with their reorientational motion were measured using longitudinal-field muon spin relaxation (LF-MuSRx). Two distinct adsorbed fractions were detected in each sample, characterised by activation energies in the range 2-6 kJ/mol and 12-16 J/mo

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Rahul, Kashyap1 Shivaji Patel2 Chandraprabha Dewangan*3 GyaneshKumar Sahu4. "Acorus Calamus: An Ancient Remedy with Modern Medicinal Applications." International Journal of Scientific Research and Technology 2, no. 2 (2025): 140–48. https://doi.org/10.5281/zenodo.14892736.

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The aim of the paper is provided information regarding incredible medicinal herb AcorusCalamus and its extract has various medicinal benefits like Anti diabetic activity, anti hypertensive effect, cytotoxic effect , immunosuppressive activity , antifungal activity , analgesic and anticonvulsant effect, bronchodilatory activity , licicidal activity, wound healing activity, coronary vasodilator effect, anti-cancer activity.The phytochemical constituent present in extract of oil are a-asarone, b-asarone, c-asarone, calamine, calamenenol, calameone, a-pinene,b-pinene, camphene, p-cymene, eugenyl a

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Bai, Tao, Fan Wu, Yunfei Zhang, et al. "Sulfur modification with dipentene and ethylhexyl acrylate to enhance asphalt mixture performance." Construction and Building Materials 343 (August 2022): 128086. http://dx.doi.org/10.1016/j.conbuildmat.2022.128086.

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Bi, Liang Wu, Qiu Ge Zhang, Peng Wang, et al. "Study on Gas-Phase Catalytic Conversion of Turpentine-Based Dipentene (TBDP) by Pd/C Catalysts." Advanced Materials Research 236-238 (May 2011): 27–34. http://dx.doi.org/10.4028/www.scientific.net/amr.236-238.27.

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Turpentine-based dipentene (TBDP) contains limonene 30.32 %, terpinolene 31.35 %,α-terpinene 7.55 %,γ-terpinene 6.40 % andp-cymene 12.87 %. Three Pd/C catalysts were characterized by BET, XRD, TG-DTG and atomic absorption spectrometry (AAS). The properties of the catalysts on TBDP conversion were compared. Difference of catalytic competitive reactions of TBDP by catalyst A with the change of reaction temperature was discussed in detail. The yield ofp-cymene at 280-310°C was over 95.0 %. It was important to control the reaction temperature for TBDP dehydrogenation catalyzed by Pd/C catalysts. I

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15

Zhang, Qiu-ge, Liang-wu Bi, Zhen-dong Zhao, et al. "Application of ultrasonic spraying in preparation of p-cymene by industrial dipentene dehydrogenation." Chemical Engineering Journal 159, no. 1-3 (2010): 190–94. http://dx.doi.org/10.1016/j.cej.2010.02.052.

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Schwartz, S. M., R. S. Boethling, and T. Leighton. "Fate of the terpenes anethole and dipentene in a bench-scale activated sludge system." Chemosphere 21, no. 10-11 (1990): 1153–60. http://dx.doi.org/10.1016/0045-6535(90)90136-h.

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D'Erme, Angelo Massimiliano, Stefano Francalanci, Nicola Milanesi, Luca Ricci, and Massimo Gola. "Contact dermatitis due to dipentene and pine oil in an automobile mechanic: Figure 1." Occupational and Environmental Medicine 69, no. 6 (2011): 452.1–452. http://dx.doi.org/10.1136/oemed-2011-100446.

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Lin, Ching Hsuan, Zheng Rong Jiang, and Chun Shan Wang. "Low dielectric thermoset. II. Synthesis and properties of novel 2,6-dimethyl phenol-dipentene epoxy." Journal of Polymer Science Part A: Polymer Chemistry 40, no. 22 (2002): 4084–97. http://dx.doi.org/10.1002/pola.10488.

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Naveed, Rasheeha, Abu Baker Siddique, Iftikhar Hussain, Mazhar Ulhaq, Bilal Aslam, and Muhammad Shahid Mahmood. "Antimicrobial activity of bioactive components of essential oils from Citrus sinensis against important pathogens." International Food Research Journal 28, no. 1 (2021): 189–98. http://dx.doi.org/10.47836/ifrj.28.1.19.

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Alternative strategies to treat multidrug resistant pathogens are indispensable due to the scarcity of new therapeutically effective antibiotics. The present work was conducted to investigate the antimicrobial effects of essential oils extracted from Citrus sinensis, locally known as “Mousami”, against various important pathogens as well as their phytochemical characterisation. Essential oils were extracted from Cit. sinensis peels by the steam distillation method, and a 0.23% yield was obtained. Chemical composition of the extracted essential oil was analysed through gas chromatography/mass s

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Hardoko, Hardoko, and Syahrani Nurul Mutmainannah. "The Potency of Water Clover (<I>Marsilea crenata</I> C. Presl.) Leaves as Anticholesterolemic Functional Foods Through <I>In Silico</I> Study." Jurnal Ilmiah Perikanan dan Kelautan 15, no. 1 (2023): 131–41. http://dx.doi.org/10.20473/jipk.v15i1.35338.

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Highlight Research 1. There were 26 active compounds from water clover leaf extract that were identified using GC-MS 2. In silico approach was used to screen potential anticholesterolemic compounds from water clover leaf extract 3. Anticholesterolemic compounds from water clover leaf extract were interacted with HMG-CoA reductase receptors and compared to native ligand and medicine 4. There were 6 potential anticholesterolemic compounds identified from water clover leaf extract Abstract Water clover (Marsilea crenata C. Presl.) is a widely available plant in Indonesia and often utilized as a t

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Soares, Andreia, and Miguel Pestana. "Polyterpene Resisns: Part I – A Brief Historical Review." Silva Lusitana 28, no. 2 (2020): 181–95. http://dx.doi.org/10.1051/silu/20202802165.

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The terpenic resins are polymers of low molecular weight hydrocarbons, obtained by cationic polymerization of terpenes. These products are used in the adhesives, sealants and wax coating industries. Commercial adhesive resins are prepared from monoterpenes -the main ones are α-pinene, β-pinene and dipentene. The softening point and molecular weight of polyterpene resins are critical for their main use (adherence). Its adhesive behavior results from the relationship of the softening point with the molecular weight. At the commercial level, polyterpene resins are produced by polymerization of te

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Du, Junming, Hualong Xu, Jiang Shen, Jingjing Huang, Wei Shen, and Dongyuan Zhao. "Catalytic dehydrogenation and cracking of industrial dipentene over M/SBA-15 (M=Al, Zn) catalysts." Applied Catalysis A: General 296, no. 2 (2005): 186–93. http://dx.doi.org/10.1016/j.apcata.2005.08.030.

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VOLCHO, K. P., D. V. KORCHAGINA, L. E. TATAROVA, N. F. SALAKHUTDINOV, and V. A. BARKHASH. "ChemInform Abstract: Unexpected Cycloaddition Reaction of Aldehydes to Myrcene and Dipentene on Askanite-Bentonite Clay." ChemInform 25, no. 17 (2010): no. http://dx.doi.org/10.1002/chin.199417223.

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Xin, Junna, Pei Zhang, Kun Huang, and Jinwen Zhang. "Study of green epoxy resins derived from renewable cinnamic acid and dipentene: synthesis, curing and properties." RSC Advances 4, no. 17 (2014): 8525. http://dx.doi.org/10.1039/c3ra47927g.

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Chae, Eunji, and Sung-Seen Choi. "Analysis of Polymeric Components in Particulate Matter Using Pyrolysis-Gas Chromatography/Mass Spectrometry." Polymers 14, no. 15 (2022): 3122. http://dx.doi.org/10.3390/polym14153122.

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Particulate matters (PMs) such as PM10 and PM2.5 were collected at a bus stop and were analyzed using pyrolysis-gas chromatography/mass spectrometry to identify organic polymeric materials in them. The major pyrolysis products of the PM samples were isoprene, toluene, styrene, dipentene, and 1-alkenes. The pyrolysis products generated from the PM samples were identified using reference polymeric samples such as common rubbers (natural rubber, butadiene rubber, and styrene-butadiene rubber), common plastics (polyethylene, polypropylene, polystyrene, and poly(ethylene terephthalate)), plant-rela

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Chen, Baorong, Xiaodan Wang, Yumeng Zhang, et al. "Determination and Risk Assessment of Flavor Components in Flavored Milk." Foods 12, no. 11 (2023): 2151. http://dx.doi.org/10.3390/foods12112151.

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This study aimed to determine chemical composition and assess exposure in flavored milk among Chinese residents, based on risk assessment methodologies of acceptable daily intake (ADI) and toxicological concern threshold (TTC). Esters (32.17%), alcohols (11.19%), olefins (9.09%), aldehydes (8.39%), and ketones (7.34%) comprised the majority of the flavoring samples. Methyl palmitate (90.91%), ethyl butyrate (81.82%), and dipentene (81.82%) had the highest detection rates in flavor samples. This study screened fifteen flavor components of concern and discovered that 2,3,5-trimethylpyrazine, fur

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Huang, Yingying, Jiezhen Liang, Linlin Wang, Wei Li та Xiaopeng Chen. "Vapor–Liquid Equilibria for Binary and Ternary Systems with β-Caryophyllene, Dipentene, and α-Pinene at 100.7 kPa". Journal of Chemical & Engineering Data 65, № 8 (2020): 3770–77. http://dx.doi.org/10.1021/acs.jced.9b01049.

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Reyes-Gracia, A., Jose Alberto Alvarado, R. Pérez-Cuapio, and H. Juárez. "Comparison from lemon juice and N-dipentene ZnO nanoparticles green synthesis: Influence of byproducts in morphology and size." Materials Science and Engineering: B 290 (April 2023): 116335. http://dx.doi.org/10.1016/j.mseb.2023.116335.

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VOLCHO, K. P., D. V. KORCHAGINA, N. F. SALAKHUTDINOV та V. A. BARKHASH. "ChemInform Abstract: Unusual Reaction of Styrene (I) with Dipentene (II) and γ- Terpinene (VI) on Askanite-Bentonite Clay". ChemInform 26, № 34 (2010): no. http://dx.doi.org/10.1002/chin.199534202.

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Mao, Wei, Shouhai Li, Mei Li, Kun Huang, and Jianling Xia. "Design, preparation and properties of novel flame retardant thermosetting vinyl ester copolymers based on castor oil and industrial dipentene." Polish Journal of Chemical Technology 19, no. 3 (2017): 1–8. http://dx.doi.org/10.1515/pjct-2017-0040.

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Abstract A novel bio-based flame-retardant thermosetting vinyl ester resin monomer was synthesized from castor oil. The chemical structures of the monomer was characterized by FTIR and 1H-NMR. In order to improve its rigidity and expand its application in the field of bio-based materials, it was mixed with certain proportions of another reactive bio-based VER monomer, which had rigid and strong polar groups, and then a series of copolymers were prepared with thermal curing method. Then their tensile property, hardness, morphology of fractured surface, flame retardant property, DMA and thermost

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Li, Mei, Jinwen Zhang, Kun Huang, Shouhai Li, Jianchun Jiang, and Jianling Xia. "Mixed calcium and zinc salts of dicarboxylic acids derived from rosin and dipentene: preparation and thermal stabilization for PVC." RSC Adv. 4, no. 108 (2014): 63576–85. http://dx.doi.org/10.1039/c4ra10657a.

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Hwang, Hann-Jang, Jeng-Yueh Shieh, Chun-Hung Li, and Chun-Shan Wang. "Dielectric and thermal properties of polymer network based on bismaleimide resin and cyanate ester containing dicyclopentadiene or dipentene. III." Journal of Applied Polymer Science 103, no. 3 (2006): 1942–51. http://dx.doi.org/10.1002/app.24951.

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Lesage, P., J. P. Candy, C. Hirigoyen, F. Humblot та J. M. Basset. "Selective dehydrogenation of dipentene (R-(+)-limonene) into paracymene on silica supported palladium assisted by α-olefins as hydrogen acceptor". Journal of Molecular Catalysis A: Chemical 112, № 3 (1996): 431–35. http://dx.doi.org/10.1016/1381-1169(96)00220-8.

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Lin, Ching Hsuan, Chu Nan Hsiao, Chun Hung Li, and Chun Shan Wang. "Low dielectric thermoset. IV. Synthesis and properties of a dipentene-containing cyanate ester and its copolymerization with bisphenol A dicyanate ester." Journal of Polymer Science Part A: Polymer Chemistry 42, no. 16 (2004): 3986–95. http://dx.doi.org/10.1002/pola.20226.

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Biu, Onyinebifun Emmanuel, Maureen Tobechukwu Nwakuya, and Gamage Tubona. "Assessment of Asymptotic and Logistics Growth Models on A Chemist Data." European Journal of Mathematics and Statistics 3, no. 5 (2022): 7–15. http://dx.doi.org/10.24018/ejmath.2022.3.5.132.

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This research considers two growth models; asymptotic growth model and logistic growth model. Both models were compared to establish a better model for modelling and prediction based on a Chemist data on the percentage concentration of isomers versus time for each Isomerization of α-Pinene at 189.50C. Results from the growth curve shows a non-linear relationship between the response (time of isomerization) and the independent variables (percentage of concentration) for all the four isomers considered. Based on the four isomers four different quadratic regressions of second-order were fitted. T

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Moniharapon, Debby, Maria Nindatu, and Alien Bastian. "The THE EFFECT OF LEMONGRASS EXTRACT (Cymbopogon citratus L.) ON PEST MORTALITY OF Plutella xylostella L. IN MUSTARD PLANTS (Brassica juncea L.)." RUMPHIUS Pattimura Biological Journal 3, no. 2 (2021): 034–38. http://dx.doi.org/10.30598/rumphiusv3i2p034-038.

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Cabbage leaf caterpillars (Plutella xylostella L., Lepidoptera: Plutellidae) are the main pests that are very damaging to Brassicaceae plants, especially cabbage, mustard greens, and caisin in Indonesia. The chemical content of lemongrass is citral, citronella, geraniol, mirsene, nerol, farnesol methil heptenol and dipentene. The purpose of this study was to determine the effective concentration of Plutella xylostella pest mortality and the right LC50 value of Plutella xylostella pest mortality. This research is experimental using a completely randomized design. The subjects were 50 plutella x

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Suwannayod, Suttida, Kabkaew L. Sukontason, Benjawan Pitasawat, et al. "Synergistic Toxicity of Plant Essential Oils Combined with Pyrethroid Insecticides against Blow Flies and the House Fly." Insects 10, no. 6 (2019): 178. http://dx.doi.org/10.3390/insects10060178.

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Blow flies (Diptera: Calliphoridae) and the house fly (Diptera: Muscidae) are filth flies of medical importance, and control of their population is needed. As insecticide applications have resulted in fly resistance, and the exploration of plant essential oils (EOs) has increased against filth flies, this study assessed the combination of EOs with pyrethoids to enhance toxic efficacy. The EOs of five effective plants were screened initially against the house fly (Musca domestica L.). Their chemical constituent was performed using gas chromatography-mass spectrometry (GC-MS) analysis. The main

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Mun, Sunhee, Hwansoo Chong, Yunsung Lim, and Sangil Kwon. "Chemical Assessment of Real Driving Tire and Road Wear Particles in Urban and Suburban Seoul, Korea." Sustainability 16, no. 23 (2024): 10395. http://dx.doi.org/10.3390/su162310395.

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Extensive research about non-exhaust fine particles from tires and brakes in vehicles has been reported, focusing on the significant effects on air pollution and human harm. Significant investigations are still needed in determining the cause of influence on the environment and human health. The regulations on emissions have been discussed in earnest, starting with the introduction of brake wear particle emission standards in Euro 7. Various indoor and outdoor experiments have been conducted, such as analysis of the amount of wear on tires and brakes, and analysis of the physical and chemical

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Sosa, Azhar Abdulameer. "Screening of Bioactive Natural Compounds of Ethanolic Leaves Extract Origanum vulgare Using GCMS Technique and Evaluation of Its [α-amylase and α‑glucosidase] Inhibitory Activity". South Asian Research Journal of Biology and Applied Biosciences 7, № 02 (2025): 99–108. https://doi.org/10.36346/sarjbab.2025.v07i02.008.

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The purpose of metabolite profiling is to measure as many metabolites as possible from predefined structural groups which include organic acids as well as amino acids and carbohydrates. The volatile compounds function as excellent indicators to identify their original substances which enables assessment of product quality. Precursor levels in immature plant stages cause minimal aroma volatile synthesis which gets gradually controlled towards the optimal harvest moment. Many crucial primary and secondary metabolites isolated from Origanum vulgare leaves play essential roles in better human diet

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Sosa, Azhar Abdulameer. "Secondary Metabolites Profiling Using FTIR and GC-MS Techniques and Bioactivities of Fennel (Foeniculum Vulgare) Aerial Parts and Evaluation of Its Antioxidant (Singlet Oxygen Scavenging and Hypochlorous Acid Scavenging) Activity." South Asian Research Journal of Agriculture and Fisheries 7, no. 02 (2025): 25–33. https://doi.org/10.36346/sarjaf.2025.v07i02.001.

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Plants produce numerous biological chemicals of various types. Phytochemicals found in plants seek to reduce the damage free radicals cause because they are abundant in vegetables and fruits. Plants containing high levels of useful phytochemicals in their composition provide dietary supplements that defend our bodies from free radicals. The purpose of this investigation involved analyzing the phytochemicals as well as GC-MS and FTIR properties found in aerial portions extracted with ethanol from Foeniculum vulgare. An electric power grinder chopped the Foeniculum vulgare aerial parts following

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Prasetiyo, Febri Bayu, Ridwan Yusuf, and M. Adie Syaputra. "RANCANG BANGUN APLIKASI PENGENALAN HURUF UNTUK ANAK USIA DINI BERBASIS ANDROID." Journal Computer Science and Informatic Systems : J-Cosys 1, no. 1 (2021): 18–31. http://dx.doi.org/10.53514/jc.v1i1.36.

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Pendidikan anak usia dini adalah suatu upaya pembinaan yang di tujukan kepada anaksejak lahir sampai dengan usia enam tahun. Program pendidikan anak usia dini harussesuaikan dengan kebutuhan minat dan perkembangan anak. Dalam era sekarang ini anak-anakusia dini sudah mulai belajar mengeja dan membaca. Hal ini sangat dipenting karena merupakan dasar kita untuk mengetahui suatu informasi. Namun, pada umumnya aplikpengenalan huruf hanya menggunakan gambar dan teks. Dengan fasilitas android diharapkanak-anak dapat menangkap isi dari aplikasi yang dibangun.  Dalam era sekarang ini anak-anak u

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Ullah, Muhammad Arshad, Ali Hassan, and Ameer Hamza. "Medical Constituents of Ajwain (Trachyspermum ammi) for Human Benefits." Middle East Research Journal of Biological Sciences 4, no. 01 (2024): 1–8. http://dx.doi.org/10.36348/merjbs.2024.v04i01.001.

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Ajwain seed analysis has revealed it to contain fiber (11.9%), carbohydrates (38.6%), tannins, glycosides, moisture (8.9%), protein (15.4%), fat (18.1%), saponins, flavone and mineral matter (7.1%) containing calcium, phosphorous, iron and nicotinic acid. Ajwain fruits yield 2% to 4% brownish essential oil, with thymol as the major constituent (35% to 60%). The non-thymol fraction (thymene) contains para-cymene, γ-terpenine, α- and β-pinenes, dipentene, α-terpinene, and carvacrol. Minute amounts of camphene, myrcene, and α-3-carene also have been found in the plant. Alcoholic extracts contain

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Berg, Otto, Eric L. Chronister, Tomihiro Yamashita, Gary W. Scott, Robert M. Sweet, and Joseph Calabrese. "s-Dipentacene: Structure, Spectroscopy, and Temperature- and Pressure-Dependent Photochemistry." Journal of Physical Chemistry A 103, no. 14 (1999): 2451–59. http://dx.doi.org/10.1021/jp984066g.

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Sibous, Lakhdar, Embarek Bentouhami, and Mustayeen Ahmed Khan. "Synthesis, Characterization, and Electrochemical Behaviour of Cobalt(II) and Nickel(II) Complexes with N2O2 Chelating Ligand 4,4′-(Biphenyl-4,4′-diyldinitrilo)dipentan-2-one." Journal of Inorganic Chemistry 2013 (September 3, 2013): 1–11. http://dx.doi.org/10.1155/2013/104979.

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4,4′-Diaminobiphenyl reacts with 2,4-pentanedione in absolute ethanol in a molar ratio 1 : 2 to form mainly the product of [1 + 2] condensation, 4,4′-(biphenyl-4,4′-diyldinitrilo)dipentan-2-one (H2L). The Schiff base was used as tetradentate chelating ligand to coordinate CoII and NiII chlorides leading to complexes where the ratio of metal ligand was found to be 2 : 1 or 2 : 2. All the synthesized products were characterized by elemental analysis, infrared, electronic, and mass spectroscopy, 1H NMR, and DSC. The electrochemical behaviour of the ligand and its complexes in DMF is also investig

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KARIPCIN, FATMA, ISMAIL ÖZMEN, and BURCIN CULU. "4,4'-(DIPHENYLMETHANE-4,4'-DIYLDINITRILO)DIPENTAN-2-ONE AND 4,4'-(DIPHENYLETHER-4,4'-DIYLDINITRILO)DIPENTAN-2-ONE LIGANDS AND THEIR Ni(II), Cu(II) COMPLEXES: SYNTHESIS, CHARACTERIZATION, DNA CLEAVAGE STUDIES." Journal of the Chilean Chemical Society 57, no. 1 (2012): 1029–32. http://dx.doi.org/10.4067/s0717-97072012000100016.

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Zulfitria, Zulfitria, Happy Indira Dewi, and Mutia Khanza. "PENERAPAN PEMBELAJARAN DONGENG DALAM MEMBENTUK KARAKTER SISWA." Instruksional 2, no. 1 (2020): 56. http://dx.doi.org/10.24853/instruksional.2.1.56-63.

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Dilatarbelakangi oleh era millenium sekarang ini, bahwa budaya mendongeng telah dianggap kuno dan mulai ditinggalkan. Dongeng merupakan cerita yang mengandung nilai-nilai moral dan sosial yang berguna untuk membentuk karakter anak. Strategi pembentukan karakter anak dilakukan dengan pemberian contoh, pembiasaan membaca dongeng, pembiasaan mendengarkan dongeng, dan penciptaan lingkungan baca yang mendukung. Tujuan penelitian ini adalah penerapan pembelajaran berbasis dongeng untuk pembentukan karakter siswa di era millennium secara maksimal, menyenangkan, dan terintegrasi dengan keluarga dan se

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Zulmi, Daini, Renita Rizki, Imas Quroh, and Hildah Hildah. "Efektivitas Aromaterapi Serai Terhadap Penurunan Emesis Gravidarum Pada Ibu Hamil Trimester I di Puskesmas Rangkasbitung." Journal of Midwifery and Health Research 3, no. 02 (2025): 42–48. https://doi.org/10.36743/jmhr.v3i02.876.

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Kehamilan secara umum merupakan suatu cara untuk mendapatkan keturunan yang terjadi secara alami. Menurut WHO emesis gravidarum terjadi di seluruh dunia dengan angka kejadian mencapai 12.5 % dari seluruh kehamilan. Kejadian mual muntah pada ibu hamil di Indonesia berkisar antara 50%-75% pada trimester pertama atau diawal kehamilan. Aromaterapi serai terbuat dari bahan dasar tumbuhan serai yang diubah menjadi ekstrak serai, olive oil, dan ekstrak mint. Berdasarkan hasil penelitian menunjukkan bahwa aromaterapi serai mampu menurunkan mual muntah pada ibu hamil trimester 1 karena aromaterapi sera

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Gunarmi, Gunarmi, Yunri Merida, Mia Dwi Agustiani, et al. "Pemantauan Tumbuh Kembang Bayi Balita Sesuai Format SDDITK." JDISTIRA 5, no. 1 (2025): 32–36. https://doi.org/10.58794/jdt.v5i1.1258.

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Kegiatan pengabdian masyarakat ini bertujuan untuk meningkatkan pengetahuan ibu balita tentang tumbung kembang anak melalui SDDITK di Dusun Monggong Desa Kepuharjo Yogyakarta. Ibu bayi dan balita belum memahami isi buku KIA terutama tentang pemantauan tumbuh kembang bayi balita. Kondisi ini menunjukan bahwa ibu bayi dan balita perlu diberikan pemahaman serta keterampilan dalam membaca tumbuh kembang yang ada di buku KIA. Pemantauan tumbuh kembang anak di posyandu atau di fasilitas kesehatan seperti klinik, puskesmas, RS dan PMB sangat dipenting, namun ibu bayi balita harus memahami secara mand

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Lagerwall, D. R., J. C. Gallucci, and L. A. Paquette. "Structure of diethyl 1,2,3,3b,4a,5,6,7,8,8a,8b,9-dodecahydro-1,5-dioxo-4,8,9-metheno-4H-cyclopenta[1,2-a:4,3-a']dipentalene-4,10-dicarboxylate." Acta Crystallographica Section C Crystal Structure Communications 47, no. 9 (1991): 1868–72. http://dx.doi.org/10.1107/s0108270191000860.

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Shauib, Nadia M., Abdel-Zaher A. Elassar, and Ali El-Dissouky. "Synthesis and spectroscopic characterization of copper(II) complexes with the polydentate chelating ligand 4,4′-[1,4-phenylenedi(nitrilo)dipente-2-one." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 63, no. 3 (2006): 714–22. http://dx.doi.org/10.1016/j.saa.2005.06.024.

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