Iranian Journal of Science and Technology, Transactions A: Science最新文献

{"title":"A Short Note on Generalized Variation Diminishing Wavelets","authors":"A. M. Jarrah,&nbsp;Nikhil Khanna,&nbsp;A. Zothansanga,&nbsp;Dilip Kumar","doi":"10.1007/s40995-024-01689-7","DOIUrl":"10.1007/s40995-024-01689-7","url":null,"abstract":"<div><p>Pathak (2011) introduced variation diminishing wavelets and wavelets of specified changes in sign by utilising Schoenberg’s notion of variation-diminishing integral operators of convolution type. In this paper, we introduce some generalized variation diminishing wavelets based on the Hartley kernel and the Boas transforms. In particular, we introduce wavelets with specific changes of sign and wavelets based on Tanno’s form of convolution kernels.</p></div>","PeriodicalId":600,"journal":{"name":"Iranian Journal of Science and Technology, Transactions A: Science","volume":"48 5","pages":"1299 - 1305"},"PeriodicalIF":1.4,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141778764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prunus Species Diversity, Structure and Phylogenetic Studies Assessed by Chloroplastic Microsatellite Markers","authors":"Sana Ben Mustapha,&nbsp;Donia Abdallah,&nbsp;Sahar Haffar,&nbsp;Amel Salhi Hannachi,&nbsp;Ghada Baraket","doi":"10.1007/s40995-024-01681-1","DOIUrl":"10.1007/s40995-024-01681-1","url":null,"abstract":"<div><p>The genus <i>Prunus</i> is among the main species cultivated in Tunisia, due to its economic importance. In this study, genetic diversity and relationships among Tunisian <i>Prunus</i> species was explored using six specific SSR chloroplastic primers (cpSSR) of Rosaceae. The parameters of polymorphism were estimated and showed 5.831 alleles per locus, among them, 1.315 were effective alleles, giving a Shannon’s information index of 0.323. Twelve haplotypes were shared by more than one accession, while 55 haplotypes were accession-specific, confirming the effectiveness of cpSSR as good markers for molecular characterization and identification of <i>Prunus</i> species. Furthermore, the important haplotype diversity proved the allelic singularity of the Tunisian genotypes, considered as a valuable gene pool repository for future breeding programs. Moreover, the results obtained highlighted the ancient origin of the Tunisian <i>Prunus</i> genotypes. The UPGMA dendrogram, the model based Bayesian clustering, PCA analysis and Nm values are clearly consistent with a genetic structuring and showed a high level of differentiation within the genus. Although, the classification of <i>Prunus</i> genus has been controversial issue, our results showed that chloroplastic genome may supply information regarding the evolutionary history of members of <i>Prunus</i> genus. To conclude, this work joins to other studies to demonstrate the effective power of single- parent organelle markers for molecular characterization and population genetic studies.</p></div>","PeriodicalId":600,"journal":{"name":"Iranian Journal of Science and Technology, Transactions A: Science","volume":"48 5","pages":"1175 - 1186"},"PeriodicalIF":1.4,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141785456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dislocation Induced Thermal Diffusivity Tuning of ZnO Hybrid Nanofluids: A Mode Mismatched Dual Beam Thermal Lens Study","authors":"V. Gokul,&nbsp;M. S. Swapna,&nbsp;S. Sankararaman","doi":"10.1007/s40995-024-01680-2","DOIUrl":"10.1007/s40995-024-01680-2","url":null,"abstract":"<div><p>The paper delineates the synthesis and development of zinc oxide (ZnO) hybrid nanofluids (HNFs) with different carbon sources (diesel soot (DS) and acetylene black (AB)) to address heat transfer (HT) limitations in thermal systems. Using a highly sensitive mode-mismatched dual beam thermal lens (MDTL) technique, the concentration-dependent thermal diffusivity modifications of the synthesized HNFs are monitored. The method of solution combustion is utilized for the synthesis of ZnO powder. The ZnO-hybrid composites are prepared by solid-state mixing and annealing of ZnO with DS and AB. The structure characteristics of the synthesized hybrid composites are understood through X-ray diffraction (XRD) analysis, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy. The XRD and Raman analyses revealed the structural dislocations and the degree of disorder within the synthesized composites. The optical properties of the samples are revealed through ultraviolet-visible analysis. The MDTL investigation is carried out by preparing HNFs of the samples in ethylene glycol as the base fluid, thus elucidating the effect of lattice dislocations on the thermal behavior of the synthesized HNFs. Thus, the study suggests the potential of lattice dislocations-induced thermal diffusivity tuning ZnO-DS and ZnO-AB hybrid composites for various HT applications.</p></div>","PeriodicalId":600,"journal":{"name":"Iranian Journal of Science and Technology, Transactions A: Science","volume":"49 1","pages":"269 - 282"},"PeriodicalIF":1.4,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141778848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acantholimon brevispicum (Plumbaginaceae) a New Species from Southeastern Iran Based on Morphological and Molecular Data","authors":"Hossein Bibak,&nbsp;Shahrokh Kazempour-Osaloo,&nbsp;Mostafa Assadi","doi":"10.1007/s40995-024-01688-8","DOIUrl":"10.1007/s40995-024-01688-8","url":null,"abstract":"<div><p><i>Acantholimon brevispicum</i> Bibak, Kaz.Osaloo &amp; Assadi (Plumbaginaceae) is described and illustrated as a new species from the Palvar Mountains, Kerman province, SE Iran. In this paper, we discuss morphological characteristics and molecular data that differentiate the species from closely related taxa. According to morphological characters, the new species belongs to the <i>A</i>. sect. <i>Acantholimon</i> (= <i>Staticopsis</i>) and closely related to <i>A. hormozganense</i> and <i>A. zaeifii</i>, but is easily recognized by its leaves, flowering stem length, inflorescence, bracteole shape, and petal. Morphological comparisons and taxonomic relationships of <i>A. brevispicum</i> with closely related taxa are discussed. Phylogenetic analysis was performed using maximum likelihood and Bayesian inference methods based on nrDNA ITS and plastid <i>rpl</i>32-<i>trn</i>L_(UAG) markers. According to molecular and morphological evidence, the new species is distinct from its close relatives. The molecular phylogeny analyses support the placement of <i>A. brevispicum</i> based on morphology. The information provided includes a species description, plant images, a diagnostic key, a distribution map, and a molecular phylogenetic tree.</p></div>","PeriodicalId":600,"journal":{"name":"Iranian Journal of Science and Technology, Transactions A: Science","volume":"49 1","pages":"11 - 19"},"PeriodicalIF":1.4,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141778851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical Simulation of Kink Collisions, Analytical Solutions and Conservation Laws of the Potential Korteweg–de Vries Equation","authors":"Chaudry Masood Khalique,&nbsp;Carel Olivier,&nbsp;Boikanyo Pretty Sebogodi","doi":"10.1007/s40995-024-01670-4","DOIUrl":"10.1007/s40995-024-01670-4","url":null,"abstract":"<div><p>In this study, we investigate the nonlinear potential Korteweg–de Vries equation (pKdVe) by making use of the Lie group analysis. We start by constructing Lie symmetries and thereafter utilize them to execute symmetry reductions of pKdVe. We then obtain solutions of the pKdVe by using the direct integration method. The obtained solutions are demonstrated in respect of Jacobi elliptic functions. Some of the obtained solutions are illustrated graphically. Moreover, we obtain four conserved vectors of the pKdVe by making use of the multiplier method and five conserved vectors by using the theorem owing to Ibragimov. Finally, we simulate collisions between kinks for the pKdVe.</p></div>","PeriodicalId":600,"journal":{"name":"Iranian Journal of Science and Technology, Transactions A: Science","volume":"49 1","pages":"107 - 116"},"PeriodicalIF":1.4,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40995-024-01670-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141778763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Moire Structures in Graphene on Cu (111) Substrate: Computer Simulation","authors":"Sergey V. Belim,&nbsp;Ilya V. Tikhomirov","doi":"10.1007/s40995-024-01674-0","DOIUrl":"10.1007/s40995-024-01674-0","url":null,"abstract":"<div><p>The article focuses on computer simulations of moire patterns in graphene film on a copper substrate. The surface potential simulates the influence of the substrate on the graphene film. The substrate potential is calculated from the Lennard-Jones paired potential. The interaction between carbon atoms is also determined by the Lennard-Jones potential. It is shown that for two-dimensional structures the parameters of the pair potential differ from the three-dimensional analogue. The simulation results in moire structures in the graphene film. We perform calculations for different orientation angles of graphene relative to the crystal lattice Cu(111). The moire superlattice period decreases with increasing angle between the bond directions of the graphene atoms and the main crystal lattice directions of the substrate. The results of the calculations are in good agreement with the experimental data.</p></div>","PeriodicalId":600,"journal":{"name":"Iranian Journal of Science and Technology, Transactions A: Science","volume":"48 5","pages":"1365 - 1372"},"PeriodicalIF":1.4,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design, Synthesis, and Toxicity Evaluation of the Green Synthesized Oxaliplatin Nanoparticles Using Ginger Extract against Colorectal Cancer Cells","authors":"Ilnaz Tork Cherik,&nbsp;Adeleh Divsalar,&nbsp;Seyed Abdolhamid Angaji","doi":"10.1007/s40995-024-01678-w","DOIUrl":"10.1007/s40995-024-01678-w","url":null,"abstract":"<div><p>Colorectal cancer (CRC) ranks third in malignant tumor mortality worldwide. Oxaliplatin, a third-generation chemotherapeutic drug, treats several malignancies, including colorectal cancer, after cisplatin and carboplatin. However, reducing side effects and optimizing efficacy is challenging. The utilization of plant-assisted green synthesis for the production of nanoparticles is a cost-effective and environmentally sustainable approach. This method could be at the forefront of chemotherapy due to its simplicity and efficiency. The ginger extract has been well-introduced with anti-cancer and antioxidant properties. The present study involved the green synthesis and characterization of oxaliplatin nanoparticles (OxPt NPs) through dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FTIR), inductively coupled plasma spectroscopy (ICP), field emission scanning electron microscopy (FESEM), and atomic force microscopy (AFM). This study investigated the effectiveness of OxPt NPs, ginger extract, and conventional oxaliplatin (first-line drug of CRC) on the HCT116 colorectal cancer cell line through MTT assay comparatively. The findings exhibited an outstanding efficiency of 72% in the synthesis process of OxPt nanoparticles and their subsequent encapsulation utilizing ginger extract. The nanoparticles demonstrated a size distribution within the 50–110 nm range and exhibited remarkable stability in colloidal form. The MTT assay results indicate that the OxPt NPs showed a favorable cytotoxic effect on colorectal cancer cells, as evidenced by an IC₅₀ value of 7.08 µM. Furthermore, flow cytometry data show that the nanoparticles primarily induced apoptosis as the mechanism of cell death rather than necrosis. The findings indicate that the synthesized OxPt NPs can be a new and efficient medication for addressing CRC. Overall, the present investigation showcases the efficacious amalgamation and delineation of OxPt nanoparticles, exhibiting their potential cytotoxic impacts on colorectal cancer cells.</p></div>","PeriodicalId":600,"journal":{"name":"Iranian Journal of Science and Technology, Transactions A: Science","volume":"48 6","pages":"1411 - 1423"},"PeriodicalIF":1.4,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141778846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Empirical Likelihood Inference of the Buckley–James Estimator with Length-Biased Data","authors":"Narjes Amiri,&nbsp;Vahid Fakoor,&nbsp;Majid Sarmad,&nbsp;Mahboubeh Akbari","doi":"10.1007/s40995-024-01668-y","DOIUrl":"10.1007/s40995-024-01668-y","url":null,"abstract":"<div><p>A problem that statisticians frequently face is the analysis of survival data obtained from a non-random sampling procedure. When each subject can be selected with a chance proportional to its measure, the bias imposed on the sample is called length bias. This paper uses empirical likelihood to construct confidence intervals for the regression coefficients using a Buckley–James type estimator when the underlying sample is length-biased. For this purpose, the empirical log-likelihood ratio is derived, and its asymptotic distribution is shown to be a standard chi-square. A simulation study is carried out to compare the confidence intervals based on the empirical likelihood and those based on the normal approximation. Following this, it is revealed that the empirical likelihood method improves the performance of the confidence intervals, specifically for small sample sizes. Finally, the methods are illustrated by modeling the regression parameter and estimating confidence intervals for a set of real data.</p></div>","PeriodicalId":600,"journal":{"name":"Iranian Journal of Science and Technology, Transactions A: Science","volume":"48 5","pages":"1329 - 1339"},"PeriodicalIF":1.4,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141778852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"One-Pot Synthesis of Pyrido[2,3-d]pyrimidines and 1,2,4-Triazolo[4,3−a]pyrimidines Using a Tropine-Based Dicationic Molten Salt as an Active Catalyst","authors":"Janan Metghalchi Langroudi,&nbsp;Masoumeh Mazloumi,&nbsp;Farhad Shirini,&nbsp;Hassan Tajik","doi":"10.1007/s40995-024-01685-x","DOIUrl":"10.1007/s40995-024-01685-x","url":null,"abstract":"<div><p>In this research, an environmentally friendly, effective method is documented for the synthesis of pyrido[2,3-<i>d</i>]pyrimidine and 1,2,4-triazolo[4,3-<i>a</i>]pyrimidine derivatives using an affordable and facile-prepared dicationic molten salt based on Tropine. The aforementioned pyrimidine derivatives have found remarkable pharmacological and therapeutic roles. under the influence of this catalyst formulated as [(Tropine)₂C₃H₅OH].2Cl, the products are obtained during 50 to 120 and 15 to 70 min for both reactions respectively, along with high yields from 90 to 98% which was measured through chromatography method, under solvent-free conditions or in EtOH as a green solvent. Also, the catalyst can be easily recovered and reused at least for three times.</p></div>","PeriodicalId":600,"journal":{"name":"Iranian Journal of Science and Technology, Transactions A: Science","volume":"48 5","pages":"1149 - 1159"},"PeriodicalIF":1.4,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141785525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancement of Non-Enzymatic Antioxidant Compounds and Expression of Rosmarinic Acid Biosynthesis-Related Genes in Melissa officinalis Using Cyanobacteria","authors":"Narges Moradi,&nbsp;Seyedeh Batool Hassani,&nbsp;Majid Ghorbani Nohooji,&nbsp;Hossein Riahi,&nbsp;Zeinab Shariatmadari","doi":"10.1007/s40995-024-01675-z","DOIUrl":"10.1007/s40995-024-01675-z","url":null,"abstract":"<div><p><i>Melissa officinalis</i> L. (Lemon balm) is a medicinal plant rich in phenolic compounds, possessing numerous health benefits. To enhance the plant’s medicinal properties and antioxidant activity, this study investigated the effect of two species of <i>Nostoc</i>, as nitrogen-fixing cyanobacteria, on the growth and phytochemical responses of <i>M. officinalis</i>. Also, several metabolites content including total phenol, total flavonoid, and rosmarinic acid (RA) were assessed. Additionally, alterations in the expression of RA biosynthesis-related genes, such as Rosmarinic acid synthase (<i>RAS</i>), Phenylalanine ammonia lyase (<i>PAL</i>), and Tyrosine amino transferase (<i>TAT</i>), were examined quantitatively. Pot cultivation was performed in a randomized complete block design in a greenhouse, with the treated plants irrigated with cyanobacterial suspensions at 21-day intervals for 84 days. The results demonstrated that cyanobacterial-treated plants exhibited significant improvements in root and shoot length, fresh and dry weights, leaf number, and ramification compared to the control. Additionally, there was a significant increase in the levels of hydrogen peroxide (H₂O₂), malondialdehyde (MDA), and proline content in treated plants, indicating an induction of oxidative stress and potential activation of antioxidant pathways. Moreover, cyanobacterial treatment significantly increased the content of total phenols and total flavonoids, as well as rosmarinic acid (RA). Also, cyanobacterial-treated plants exhibited higher expression levels of <i>PAL</i> and <i>RAS</i> genes compared to the control, suggesting an enhancement in the production of RA. In conclusion, the application of cyanobacterial elicitors positively influenced the growth and phytochemical responses of <i>M. officinalis</i>, leading to higher RA content and increased levels of antioxidants. This research highlights the potential of cyanobacterial bioelicitors as a cost-effective and sustainable approach to improve the medicinal quality and antioxidant activity of medicinal plants.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div><div><p>The effects of cyanobacteria, <i>Nostoc</i> spp., on total flavonoid and rosmarinic acid (RA) content, and expression levels of some RA biosynthesis-related genes in <i>Melissa officinalis</i> L., RAS: rosmarinic acid synthase, PAL: phenyl alanine ammonia lyase, TAT: tyrosine amino transferase</p></div></div></figure></div></div>","PeriodicalId":600,"journal":{"name":"Iranian Journal of Science and Technology, Transactions A: Science","volume":"48 5","pages":"1099 - 1111"},"PeriodicalIF":1.4,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141778849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}