Reciprocal Index Research Articles

NEIGHBORHOOD TOPOLOGICAL INDICES OF METAL-ORGANIC NETWORKS

A group of chemical compounds containing organic ligands and metal ions(clusters) called as Metal organic networks (MON s). These are found as one, two and three dimensional structures of porous and subordinate class of coordination polymers. The characteristics of MON s are high surface area, large pore volume, different morphology and very good chemical stability. The applications of MON s includes gas storage, heterogeneous catalysis and sensing of various gases. The stability and characteristics of these networks have become important because of the above said characteristics. The numerical invariants used to predict the physicochemical characteristics and bioactivities of chemical compounds known as topological indices. In our proposed work, we compute neighborhood redefined first Zagreb index, neighborhood redefined second Zagreb index and Generalized Reciprocal Sanskruti index for two different MON s.

Inverse and Hyper Zagreb Indices: Application to Quantitative Structure Properties Relationship

The topology index can be derived from molecular connectivity, which can be related to the chemical or physical properties of molecules. The topology indices of alkanes are calculated using the modified-Zagreb index, direct and reciprocal degree distance indices, and the modified-Zagreb index. These indices are tested as the structural descriptor for thermodynamic properties such as boiling point (bp), heat vaporization at 25oC (hv), critical temperature (ct), critical pressure (PC) and magnetooptical properties. Multiple linear regression analyses were done to find the best fitting between these indices and the thermodynamic properties. The results indicate that the boiling point, critical temperature, and heat vapor are reasonably well accounted for by the presence of more than two parameters. The regression equation for the four thermodynamic properties and magnetooptical properties shows a good relation property.

MAIT and Vδ2 Unconventional T Cells Predict Favorable Outcome after Allogeneic HCT and Are Supported By a Diverse Intestinal Microbiome

MAIT and Vδ2 Unconventional T Cells Predict Favorable Outcome after Allogeneic HCT and Are Supported By a Diverse Intestinal Microbiome

Prospective study of oral microbiome and gastric cancer risk among Asian, African American and European American populations.

Colonization of specific bacteria in the human mouth was reported to be associated with gastric cancer risk. However, previous studies were limited by retrospective study designs and low taxonomic resolutions. We performed a prospective case-control study nested within three cohorts to investigate the relationship between oral microbiome and gastric cancer risk. Shotgun metagenomic sequencing was employed to characterize the microbiome in prediagnostic buccal samples from 165 cases and 323 matched controls. Associations of overall microbial richness and abundance of microbial taxa, gene families and metabolic pathways with gastric cancer risk were evaluated via conditional logistic regression. Analyses were performed within each cohort, and results were combined by meta-analyses. We found that overall microbial richness was associated with decreased gastric cancer risk, with an odds ratio (OR) per standard deviation (SD) increase in Simpson's reciprocal index of 0.77 (95% confidence interval [CI]=0.61-0.99). Nine taxa, 38 gene families and six pathways also showed associations with gastric cancer risk at P < .05. Neisseria mucosa and Prevotella pleuritidis were enriched, while Mycoplasma orale and Eubacterium yurii were depleted among cases with ORs and 95% CIs per SD increase in centered log-ratio transformed taxa abundance of 1.31 (1.03-1.67), 1.26 (1.00-1.57), 0.74 (0.59-0.94) and 0.80 (0.65-0.98), respectively. The top two gene families (P=3.75 × 10-4 and 3.91 × 10-4 ) and pathways (P=1.75 × 10-3 and 1.53 × 10-3 ) associated with gastric cancer were related to the decreased risk and are involved in hexitol metabolism. Our study supports the hypothesis that oral microbiota may play a role in gastric cancer etiology.

Some new degree based topological indices of h-naphtalenic graph via M-polynomial approach

In this object, we present some new formulas of the reduced reciprocal Randic index, the arithmetic geometric 1 index, the SK, SK1, SK2 indices, first Zagreb index, the general sum-connectivity index, the SCI index and the forgotten index. They were utilized for new degree-based topological indices via M-polynomial. We retrieved these topological indices for H-Naphtalenic nanotubes.

Inaccuracy patterns and precise pollination among distylous Palicourea and Psychotria (Rubiaceae)

Heterostyly is a polymorphism in which populations comprise two (distyly) or three (tristyly) floral morphs with reciprocal positioning of the height of the anthers and stigmas (reciprocal herkogamy). Such reciprocal herkogamy permits precise pollen placement on pollinators’ bodies and pollination success by promoting disassortative pollen transfer between floral morphs. Here, we aimed to understand how the different components of reciprocity relate to and differ from each other in distylous flowers, and whether factors, such as genus, morph-ratio variation, and corolla tube length influence the imprecisions in the sexual organs within populations. We gathered literature and original morphometrics data comprising 98 Palicourea and Psychotria populations from 44 species, the two largest distylous Rubiaceae genera, which differ in some floral features and pollination systems (hummingbirds vs. insects, respectively). We estimated reciprocity using new inaccuracy indices and standardization techniques, which allowed comparisons among a wide array of populations. Our results showed that maladaptive bias (i.e. departure from optimum reciprocity) of low organs was higher than the other decomposed inaccuracies indices tested. In addition, inaccuracy of low organs was higher than those of high organs. We did not find any relation of either genus, morph-ratio variation, or corolla tube length on general inaccuracy measurements. Apparently, pollinator-mediated selection on floral traits, imposed by different pollinators groups, did not differ markedly among the studied distylous Rubiaceae. This is the first study on inaccuracy components for such an ample array of populations and provides insights on the relative importance of morphological traits that optimize the functionality of distyly. We highlight the applicability of using standardized reciprocity indices for cross populational investigations, which may both support previous insights and reveal unknown patterns in distylous plants.

Is there reciprocity between India and RCEP member countries' goods trade?

In early November 2019, India announced its withdrawal from the Regional Comprehensive Economic Partnership (RCEP) Agreement, and stated that there is a non-reciprocal trade relationship with RCEP member states, this incident has aroused extensive discussions between India and the international community. We take reciprocity as the perspective and discuss the following three theoretical propositions: (1) Can the reciprocity coefficient be used as a basis for decision-making? (2) What is the influence mechanism of the reciprocity coefficient? (3) How will the reciprocity of RCEP changes in the future? We find that the reciprocity index is a result indicator of trade policy and trade network status. It is affected by the trade policy and trade status of related countries in the short term. It can be regarded as a warning and decision-making reference directional indicator. However, it cannot be used as a basic index for trade policy adjustments, India should reconsider this decision or choose other ways to participate in RCEP's regional cooperation.

Stolarsky–Puebla Index

We introduce a degree-based variable topological index inspired on the Stolarsky mean (known as the generalization of the logarithmic mean). We name this new index as the Stolarsky-Puebla index: $SP_\alpha(G) = \sum_{uv \in E(G)} d_u$, if $d_u=d_v$, and $SP_\alpha(G) = \sum_{uv \in E(G)} \left[\left( d_u^\alpha-d_v^\alpha\right)/\left( \alpha(d_u-d_v\right)\right]^{1/(\alpha-1)}$, otherwise. Here, $uv$ denotes the edge of the network $G$ connecting the vertices $u$ and $v$, $d_u$ is the degree of the vertex $u$, and $\alpha \in \mathbb{R} \backslash \{0,1\}$. Indeed, for given values of $\alpha$, the Stolarsky-Puebla index reproduces well-known topological indices such as the reciprocal Randic index, the first Zagreb index, and several mean Sombor indices. Moreover, we apply these indices to random networks and demonstrate that $\left $, normalized to the order of the network, scale with the corresponding average degree $\left $.

Seedling Diversity Considerably Changes Near Localities in Three Salinity Zones of Sundarbans Mangrove Forest, Bangladesh

The status of natural seedlings near localities in the Sundarbans Mangrove Forest was assessed through a stratified random sampling method to observe seedling composition and diversity, importance value index, family importance value, and species evenness. A total of 63 sample plots of 3,990 m2 area were surveyed in three natural and anthropogenic influenced salinity zones of Sundarbans. A total of 16,166 seedlings of 15 species under 12 families were found. Family Euphorbiaceae showed the highest (59.59%) family relative density and Rhizophoraceae presented the highest (20%) family relative diversity Index (FRDI). The maximum family importance value (FIV) showed by Euphorbiaceae (66.26) and the maximum importance value index (IVI) of species has been observed in Excoecaria agallocha (114.74). Excoecaria agallocha showed the highest relative density (59.6%) and relative abundance (39.87%) where the highest relative frequency (15.27%) was observed by Heritiera fomes. The mean stem density and species diversity index in the whole survey area was 2701 stem ha-1 and 0.0009 correspondingly. The Shannon-Wienner's diversity index was 1.52 where the maximum Shannon-Wienner's diversity index was 2.708. The Simpson's diversity index and Dominance of Simpson index were 0.38 and 0.62 with Simpson's reciprocal index 2.632. The Species evenness index, Menhinick’s, and Margalef's indices were 0.561, 0.118, and 1.445 respectively. The Species diversity index of the three salinity zones were 0.0017, 0.0029, and 0.0035 respectively. The Shannon-Wienner's diversity index of Low Salinity Zone (LSZ), Moderate Salinity Zone (MSZ), and Strong Salinity Zone (SSZ) were 0.887, 1.369, and 1.845 correspondingly where LSZ (0.632) showed the highest Simpson's diversity index follow ed by MSZ (0.394) and SSZ (0.21). The Species evenness index for LSZ, MSZ, and SSZ were 0.346, 0.505, and 0.742 where Menhinick’s Index were 0.148, 0.210, and 0.207 respectively. The analysis showed poor diversity indices and the area was dominated by few species with few families. The status is also reduced with increasing salinity.

INDIA’S BILATERAL TRADE WITH CHINA- EMPIRICAL STUDY BASED ON TRADE INTENSITY INDEX &amp; TRADE RECIPROCITY INDEX

This paper is an attempt to examine and compare the bilateral relationship between India and China. It analyses the trends in trade and the major composition of commodities being traded between India and China during the period (2008-2017). Annual Growth Rate (AGR), Combined Annual Growth Rate (CAGR), Trade Intensity Index (TII), and Trade Reciprocity Index (TRI) have been used in order to analyse the bilateral trade between India and China. The present study reveals that India imports 3 to 4 times more than it exports to China whereas overall trade between India and China also increased over the years specially in the area of import as compare to India’s total trade to the world. However, the top ten commodities that have been dominating in India’s trade with China are: Ores, Cotton, Copper and articles, Organic chemicals, Electrical machinery &amp; equipment, nuclear reactors, etc. Trade Intensity Index reveals there is serious unbalanced trade relationship between India and China from India’s point of view and India need to take productive steps for minimising unbalanced trade balance. Whereas, TRI index also reveals that India is stepping towards unbalanced trade with China as the import indices keep on increasing in comparison to export indices and therefore, balance of trade results unfavourable which requires India to rethink and revamp its export and import policy.

Topological Indices of Some Classes of Thorn Complete and Wheel Graphs

We have multiple real numbers that describe chemical descriptors in the field of Graph theory. These descriptors constitute the entire structure of a graph, which possesses an actual chemical structure. Among these, the main focus of topological indices is that they are associated with many non-identical physiochemical properties of chemical compounds. Also, the biological properties of chemical compounds can be established by the topological indices. In this analysis, we compute the Reciprocal Randic index〖(R〗^(-1)), Reduced Reciprocal Randic index(〖RR〗^(-1)), Atom-bond Connectivity index(ABC) and the geometric arithmetic index(GA) of thorn graphs are obtained theoretically.

Landscape of Immune Reconstitution after Allogeneic Hematopoietic Cell Transplantation Is Superdominated By Distinct T Cell Populations Bearing T-Cell Receptor Clonotypes Shared Among Different Individuals

Background: Enormous diversity of T-cell receptor (TCR) repertoire is generated by somatic rearrangement of gene segments that encode TCRα and TCRβ subunits. Next-generation TCR sequencing is emerging as a powerful tool to elucidate TCR repertoire at very high resolution. We recently found that a small fraction of TCRs shared among different individuals confers immunologic predominance on T-cell reactivities against some viral antigens (Miyama, Sci Rep 2017). To investigate the role of T cells bearing such “shared” TCRs during immune reconstitution after allogeneic hematopoietic cell transplantation (allo-HCT), we herein performed semi-quantitative NGS analysis of TCR repertoire in peripheral blood (PB) of post-transplant patients.Methods: This study was conducted according to a protocol approved by the ethics committee of Hiroshima University. We collected PB mononuclear cells from 15 patients who received allo-HCT at our center for hematologic malignancies (acute leukemia=9; myelodysplastic syndrome=3; lymphomas=3) prior to and at different time points (1, 2, 3, 4, 6, 8 weeks and 3, 6, and 12 months) after transplantation. 10 patients received HLA-8/8 or 7/8-matched unrelated-donor bone marrow and 5 received HLA-mismatched single-cord blood unit. Using these samples, unbiased NGS analysis of TRB V-D-J gene segments was performed. We assessed the TCR repertoire diversity of each sample by calculating the Simpson's Reciprocal Index (SRI, 1/D) using NGS data. We defined TCRβ clonotypes found in two or more patients using the same TRBV/TRBJ gene segments and CDR3 amino acid sequences as a “shared” clonotype. To determine whether the read numbers of a shared TCR clonotype in a given sample occupy the higher or lower rank compared with those of unshared clonotypes, we performed the nonparametric Mann-Whitney test. P values less than 0.05 were considered statistically significant.Results: All patients achieved neutrophil engraftment at a median of 19 days with complete donor-type chimerism. A total of 12 patients developed grade II-IV acute GVHD at a median of 23.5 (range 6-60) days and 10 patients experienced cytomegalovirus reactivation at a median onset of 36 (range 15-56) days after transplantation. Among 36,281,897 TRB sequence reads obtained from the collected samples, 2,782,129 were identified as a unique read that defines a single TCRβ clonotype. Among these unique clonotypes, 42,436 (1.5%) were shared among different patients. Although SRIs in the samples obtained from 2 to 4 weeks post-transplant were nearly equivalent to those in pre-transplant samples, the diversity indices from 6 weeks to 12 months were significantly decreased before transplant (median 1/D; pre-transplant=137, 6w=29.9, 8w=40.5, 3m=35.8, 6m=33.6, 12m=28.3, P<0.05), indicating the persistent reduction of TCR repertoire diversity. Intriguingly, although the proportions of “shared” clonotypes among total TCRβ clonotypes later than 1 week post-transplant were relatively small (median 5.2%, range 0.55-16.9%), the ratio of unique reads encoding shared clonotypes among total TRB reads ranged from 3.6% to 93.3% (median 50.7%), which was significantly higher than that of unshared unique reads (P<0.05). Such predominance of shared TCRβ clonotypes was observed in both CD4+ and CD8+ T cell populations.Conclusions: T-cell repertoire reconstitution after allo-HCT is characterized by extreme predominance of T cells bearing TCRβ clonotypes shared among different individuals. Our results suggest that a distinct population of T cells expressing “shared” TCRs strongly affects the homeostasis of T cell repertoire after allo-HCT. Functional assays of these superdominant TCRs are strongly warranted in the context of their reactivities against microbial or allogenic antigens. DisclosuresKitaura:Repertoire Genesis Incorporation: Employment. Shin-I:BITS Incorporation: Equity Ownership. Suzuki:Repertoire Genesis Incorporation: Equity Ownership.

Maximum Reciprocal Degree Resistance Distance Index of Bicyclic Graphs

The reciprocal degree resistance distance index of a connected graph G is defined as RDR G = ∑ u , v ⊆ V G d G u + d G v / r G u , v , where r G u , v is the resistance distance between vertices u and v in G . Let ℬ n denote the set of bicyclic graphs without common edges and with n vertices. We study the graph with the maximum reciprocal degree resistance distance index among all graphs in ℬ n and characterize the corresponding extremal graph.

The impact of gut microbial composition on response to neoadjuvant chemotherapy (NACT) in early-stage triple negative breast cancer (TNBC).

590 Background: The impact of gut microbiome on tumor biology, progression and response to immunotherapy has been shown across cancer types. However, there is little known about the impact of gut microbial composition on response to chemotherapy. We have previously shown that the gut microbiome remains unaltered during NACT in a cohort of 32 patients. Here we investigate the association between gut microbiome and response to NACT in a larger cohort of early-stage TNBC. Methods: Longitudinal fecal samples were collected from 85 patients with newly-diagnosed, early-stage TNBC patients enrolled in the ARTEMIS trial (NCT02276443). Patients all received standard NACT with adriamycin/cyclophosphamide (AC); volumetric change was assessed using ultrasound and patients with &lt; 70% volumetric reduction (VR) after 4 cycles of AC were recommended to receive targeted therapy in addition to standard NACT to improve response rates. We performed 16S sequencing on bacterial genomic DNA extracted from 85 pre-AC fecal samples using the 2x250 bp paired-end read protocol. Quality-filtered sequences were clustered into Operational Taxonomic Units and classified using Mothur method with the Silva database version 138. For differential taxa-based univariate analysis, abundant microbiome taxa at species, genus, family, class, and order levels were analyzed using DESeq2 after logit transformation. Alpha-diversity indices within group categories were calculated using phyloseq. Microbial alpha diversity (within-sample diversity) was measured by Simpson's reciprocal index. β-diversity was measured using weighted UniFrac distances between the groups. The association between microbiota abundance and pathologic complete response (pCR) or residual disease (RD) was assessed using DESeq2 analysis. Results: Pre-AC fecal samples from 85 patients were available for analysis. Amongst them, there were 46 patients with pCR and 39 patients with RD. There was no significant difference in alpha diversity (p = 0.8) or beta-diversity (p = 0.7) between the pCR and RD groups. However, relative to patients with RD, the gut microbiome in patients with pCR was enriched for the Bifidobacterium longum species (p = 0.03). The gut microbiome in patients with RD was enriched for Lachnospiraceae (p = 0.03) at the genus level and the Bacteroides thetaiotaomicron species (p = 0.02). Conclusions: We have demonstrated significant differences in the gut microbial composition in patients with pCR as compared to patients with RD. Further investigation in larger studies is needed to support therapeutic exploration of gut microbiome modulation in TNBC patients receiving chemotherapy such as probiotic supplementation or fecal microbiota transplant.

Increased variation in sex organ positions can increase reciprocity and pollination success in heterostylous plant populations

AbstractThe reciprocal position of sexual organs in complementary floral morphs is central to our understanding of heterostyly. Reciprocity indices are used to quantify the spatial match between complementary sex organs, but previous indices fail to appropriately account for intra‐population variation in sex organ positions. In this study, we examine how an increase in intra‐population variation in sex organ heights affects reciprocity and consequently reproductive success. We formulated a reciprocity index that incorporates this variation and asked if estimates of reciprocity can predict reproductive success in naturally occurring heterostylous populations. We developed a reciprocity index that assumed pollen transfer success equalled one for a perfectly matched stigma–anther pair, and decreased to zero with increasing mismatch. We examined the relationship between intra‐population variation in organ position and reciprocity, compared previously proposed indices using simulated populations and empirical data from natural populations, and tested the ability of the indices to predict reproductive success. We observed that when differences between mean complementary sex‐organ heights are small, increasing intra‐population variation in heights resulted in a decrease in reciprocity. However, when this difference is larger, reciprocity increased, reached a peak, and then decreased with increasing variation. Previous indices failed to capture this behavior. Seed set was positively related to reciprocity for our index. These results challenge the current understanding that increasing variation in sex‐organ heights will always decrease reciprocity in heterostylous populations. This may help explain why heterostylous systems exhibit and tolerate high amounts of intra‐population variation in sex organ heights.

Dynamic Degradation Quantification of Wind Turbine High Speed Shaft Bearing Based on Oscillation Based Sparsity Indices

Wind turbine (WT) high speed shaft (HSS) bearing fault is important due to its significant number of failures. However, due to its non-stationary operation under varying speed condition, it is a challenging issue to quantify the degradation of WT-HSS bearing by conventional bearing indices. Aiming at the aforementioned issue, in this paper, tunable Q factor wavelet transform (TQWT) preprocessed sparsity indices are proposed to achieve the dynamic degradation quantification of WT-HSS bearing. Firstly, based on the ability of TQWT in dynamic extraction of fault component of a bearing signal under varying speed condition, low oscillatory transient signal component is separated from a noisy commercial WT-HSS bearing signal by continuously adjustable tunable Q factor wavelet transform (TQWT). Then, considering the suitability of sparsity indices in quantifying extracted fault component based on its energy concentration, four representative sparsity indices namely kurtosis, gini index, negative entropy and reciprocal smoothness index are used to quantify the separated low oscillatory signal component as a measure of WT-HSS bearing health. The proposed indices show a better performance than original sparsity indices and an improved version of sparsity indices based on adaptive weighted signal preprocessing in dynamic degradation quantification of a commercial WT-HSS bearing.

Soil Bacterial Community Diversity and Composition as Affected by Tillage Intensity Treatments in Corn-Soybean Production Systems

Our understanding on the effects of tillage intensity on the soil microbial community structure and composition in crop production systems are limited. This study evaluated the soil microbial community composition and diversity under different tillage management systems in an effort to identify management practices that effectively support sustainable agriculture. We report results from a three-year study to determine the effects on changes in soil microbial diversity and composition from four tillage intensity treatments and two residue management treatments in a corn-soybean production system using Illumina high-throughput sequencing of 16S rRNA genes. Soil samples were collected from tillage treatments at locations in the Southern Coastal Plain (Verona, MS, USA) and Southern Mississippi River Alluvium (Stoneville, MS, USA) for soil analysis and bacterial community characterization. Our results indicated that different tillage intensity treatments differentially changed the relative abundances of bacterial phyla. The Mantel test of correlations indicated that differences among bacterial community composition were significantly influenced by tillage regime (rM = 0.39, p ≤ 0.0001). Simpson’s reciprocal diversity index indicated greater bacterial diversity with reduction in tillage intensity for each year and study location. For both study sites, differences in tillage intensity had significant influence on the abundance of Proteobacteria. The shift in the soil bacterial community composition under different tillage systems was strongly correlated to changes in labile carbon pool in the system and how it affected the microbial metabolism. This study indicates that soil management through tillage intensity regime had a profound influence on diversity and composition of soil bacterial communities in a corn-soybean production system.

The Impacts of the Neighborhood Built Environment on Social Capital for Middle-Aged and Elderly Koreans

The purpose of this study was to investigate the relationship between the neighborhood built environment (NBE) aspects of age-friendly cities and communities (AFCCs) and social capital in the Korean context. We described and compared age differences when analyzing misfits of AFCC NBE and impacts on social capital. We collected the data (N = 1246) from two Korean communities; our multiple and binary logistic regression outcomes show that AFCC NBE aspects such as outdoor spaces, transportation, and housing are significant predictors of different subcategories of social capital. For the older group, the outdoor spaces misfit was significant for all three subcategories of social capital, but transportation and housing misfits were significant for the social trust and reciprocity index scores. For the middle-aged group, the outdoor spaces misfit was significant for social networking and participation, and a transportation misfit was significant for participation and social trust and reciprocity. Fewer misfits or better fits of outdoor spaces and transportation encouraged more networking, participation, social trust, and reciprocity. Dwelling type was important to predict social capital, especially for the older group. The present study confirmed the importance of AFCC NBE in predicting social capital and unique factors in the Korean context.

Bounding the $k$-Steiner Wiener and Wiener-Type Indices of Trees in Terms of Eccentric Sequence

The eccentric sequence of a connected graph \(G\) is the nondecreasing sequence of the eccentricities of its vertices. The Wiener index of \(G\) is the sum of the distances between all unordered pairs of vertices of \(G\). The unique trees that minimise the Wiener index among all trees with a given eccentric sequence were recently determined by the present authors. In this paper we show that these results hold not only for the Wiener index, but for a large class of distance-based topological indices which we term Wiener-type indices. Particular cases of this class include the hyper-Wiener index, the Harary index, the generalised Wiener index \(W^{\lambda }\) for \(\lambda >0\) and \(\lambda <0\), and the reciprocal complementary Wiener index. Our results imply and unify known bounds on these Wiener-type indices for trees of given order and diameter.We also present similar results for the \(k\)-Steiner Wiener index of trees with a given eccentric sequence. The Steiner distance of a set \(A\subseteq V(G)\) is the minimum number of edges in a subtree of \(G\) whose vertex set contains \(A\), and the \(k\)-Steiner Wiener index is the sum of distances of all \(k\)-element subsets of \(V(G)\). As a corollary, we obtain a sharp lower bound on the \(k\)-Steiner Wiener index of trees with given order and diameter, and determine in which cases the extremal tree is unique, thereby correcting an error in the literature.

M-polynomial and topological indices of some transformed networks

&lt;abstract&gt;&lt;p&gt;In the chemical industry, topological indices play an important role in defining the properties of chemical compounds. They are numerical parameters and structure invariant. It is a proven fact by scientists that topological properties are influential tools for interconnection networks. In this paper, we will use stellation, medial and bounded dual operations to build transformed networks from zigzag and triangular benzenoid structures. Using M-polynomial, we compute the first and second Zagreb indices, second modified Zagreb indices, symmetric division index, general Randic index, reciprocal general Randic index. We also calculate atomic bond connectivity index, geometric arithmetic index, harmonic index, first and second Gourava indices, first and second hyper Gourava indices.&lt;/p&gt;&lt;/abstract&gt;