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1. Workflows Community Summit 2024: Future Trends and Challenges in Scientific Workflows

Author

da Silva, Rafael Ferreira, Bard, Deborah, Chard, Kyle, de Witt, Shaun, Foster, Ian T., Gibbs, Tom, Goble, Carole, Godoy, William, Gustafsson, Johan, Haus, Utz-Uwe, Hudson, Stephen, Jha, Shantenu, Los, Laila, Paine, Drew, Suter, Frédéric, Ward, Logan, Wilkinson, Sean, Amaris, Marcos, Babuji, Yadu, Bader, Jonathan, Balin, Riccardo, Balouek, Daniel, Beecroft, Sarah, Belhajjame, Khalid, Bhattarai, Rajat, Brewer, Wes, Brunk, Paul, Caino-Lores, Silvina, Casanova, Henri, Cassol, Daniela, Coleman, Jared, Coleman, Taina, Colonnelli, Iacopo, Da Silva, Anderson Andrei, de Oliveira, Daniel, Elahi, Pascal, Elfaramawy, Nour, Elwasif, Wael, Etz, Brian, Fahringer, Thomas, Ferreira, Wesley, Filgueira, Rosa, Tande, Jacob Fosso, Gadelha, Luiz, Gallo, Andy, Garijo, Daniel, Georgiou, Yiannis, Gritsch, Philipp, Grubel, Patricia, Gueroudji, Amal, Guilloteau, Quentin, Hamalainen, Carlo, Enriquez, Rolando Hong, Huet, Lauren, Kesling, Kevin Hunter, Iborra, Paula, Jahangiri, Shiva, Janssen, Jan, Jordan, Joe, Kanwal, Sehrish, Kunstmann, Liliane, Lehmann, Fabian, Leser, Ulf, Li, Chen, Liu, Peini, Luettgau, Jakob, Lupat, Richard, Fernandez, Jose M., Maheshwari, Ketan, Malik, Tanu, Marquez, Jack, Matsuda, Motohiko, Medic, Doriana, Mohammadi, Somayeh, Mulone, Alberto, Navarro, John-Luke, Ng, Kin Wai, Noelp, Klaus, Kinoshita, Bruno P., Prout, Ryan, Crusoe, Michael R., Ristov, Sashko, Robila, Stefan, Rosendo, Daniel, Rowell, Billy, Rybicki, Jedrzej, Sanchez, Hector, Saurabh, Nishant, Saurav, Sumit Kumar, Scogland, Tom, Senanayake, Dinindu, Shin, Woong, Sirvent, Raul, Skluzacek, Tyler, Sly-Delgado, Barry, Soiland-Reyes, Stian, Souza, Abel, Souza, Renan, Talia, Domenico, Tallent, Nathan, Thamsen, Lauritz, Titov, Mikhail, Tovar, Benjamin, Vahi, Karan, Vardar-Irrgang, Eric, Vartina, Edite, Wang, Yuandou, Wouters, Merridee, Yu, Qi, Bkhetan, Ziad Al, and Zulfiqar, Mahnoor

Subjects
Computer Science - Distributed, Parallel, and Cluster Computing
Abstract

The Workflows Community Summit gathered 111 participants from 18 countries to discuss emerging trends and challenges in scientific workflows, focusing on six key areas: time-sensitive workflows, AI-HPC convergence, multi-facility workflows, heterogeneous HPC environments, user experience, and FAIR computational workflows. The integration of AI and exascale computing has revolutionized scientific workflows, enabling higher-fidelity models and complex, time-sensitive processes, while introducing challenges in managing heterogeneous environments and multi-facility data dependencies. The rise of large language models is driving computational demands to zettaflop scales, necessitating modular, adaptable systems and cloud-service models to optimize resource utilization and ensure reproducibility. Multi-facility workflows present challenges in data movement, curation, and overcoming institutional silos, while diverse hardware architectures require integrating workflow considerations into early system design and developing standardized resource management tools. The summit emphasized improving user experience in workflow systems and ensuring FAIR workflows to enhance collaboration and accelerate scientific discovery. Key recommendations include developing standardized metrics for time-sensitive workflows, creating frameworks for cloud-HPC integration, implementing distributed-by-design workflow modeling, establishing multi-facility authentication protocols, and accelerating AI integration in HPC workflow management. The summit also called for comprehensive workflow benchmarks, workflow-specific UX principles, and a FAIR workflow maturity model, highlighting the need for continued collaboration in addressing the complex challenges posed by the convergence of AI, HPC, and multi-facility research environments.

Published
2024
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10. Nanocodelivery of 5‐Fluorouracil and Curcumin by RGD‐Decorated Nanoliposomes Achieves Synergistic Chemotherapy for Breast Cancer.

Author

Mahmoudi, Reza, Mohammadi, Somayeh, Mahmoudi, Rouzbeh, Fouani, Mohamad Hassan, Ardakani, Maryam Tajali, Hadi, Amin, Nikseresht, Mohsen, Barmak, Mehrzad Jafari, Karimpour, Farzad, Bardania, Hassan, and Nirmala Grace, Andrews

Subjects
*CANCER chemotherapy, *ANTINEOPLASTIC agents, *TRANSMISSION electron microscopy, *BREAST cancer, *FLUOROURACIL
Abstract

In the present study, arginine–glycine–aspartic acid peptide (RGD) surface functionalized liposomes (Lips) were formulated for the concomitant targeted delivery of two antineoplastic drugs, namely curcumin (Cur) and 5‐fluorouracil (5FU) to breast cancer cells. The Lips' measured size values where 50–100 nm by transmission electron microscopy (TEM) and 169 ± 10.2 nm by dynamic light scattering (DLS), which fall within the desired range required for drug delivery purposes. In this study, we assessed the antineoplastic effects of various liposomal formulations for the codelivery of Cur and 5FU to MCF‐7 breast cancer cells. We evaluated two liposomal formulations (Lip–Cur–5FU) and (Lip–Cur–5FU–RGD). The treatment of MCF‐7 cells with 32 µg/mL of Cur exhibited a significant (p < 0.0001) drop in cell viability among the three formulations, namely Cur and 5Fu in the free form (Lip–Cur–5FU) and liposomal form (Lip–Cur–5FU–RGD); the least viability rate (9.91% ± 1.65%) corresponded to the RGD functionalized concomitantly Cur and 5Fu loaded Lips (Lip–Cur–5FU–RGD) formulation. On the other hand, liposomal Cur increased the rate of early apoptotic cell by 4.88% without altering the rate of late apoptotic cells. Furthermore, the concomitant treatment of MCF‐7 cells with Cur and 5FU enhanced the overall apoptosis rate, where Cur–5FU in the RGD functionalized‐liposomal form induced the highest (16.8%) apoptosis rate, while other Cur–5FU formulations, free and nonfunctionalized liposomal form, induced lower apoptosis rates (10.4% and 10.9%, respectively). Collectively our results demonstrated that the implementation of RGD‐functionalized Lips for the concomitant delivery of Cur and 5FU enhanced their therapeutic efficacy against this breast cancer model. [ABSTRACT FROM AUTHOR]

Published
2024
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13. A Continuous Sample Drop Flow-Based Microextraction Method for Spectrophotometric Determination of Cobalt with 1-(2-Pyridylazo)-2-Naphthol in Water Samples

Author

Mohanna Ezati, Moinfar, Soleyman, Mohammadi, Somayeh, and Khayatian, Gholamreza

Subjects
Cobalt -- Methods, Chemistry
Abstract

There is always a need to develop new, fast and non-complicated microextraction methods that consume small amounts of organic solvents. In this study, a new mode of liquid phase microextraction method, termed as continuous sample drop flow-based microextraction (CSDF-ME), was developed for the enrichment and determination of cobalt in water samples. To attain the appropriate conditions for the CSDF-ME, experimental parameters such as pH, type and volume of extraction solvent, concentration of chelating agent, salting effect, sample flow rate and sample volume, needle diameter were examined. The enrichment factor was 167 for 20 mL sample solution. The calibration graph was linear in the concentration range of 5-200 [mu]g/L with the correlation coefficient of 0.999. The limit of detection was 1.3 [mu]g/L. The reliability of the recommended procedure was verified by analysis of real water samples (including tap, mineral and river water) and synthetic sample spiked with known amount of cobalt, and the obtained recoveries of spiked samples have demonstrated accuracy and applicability of the proposed method., Author(s): Mohanna Ezati [sup.1], Soleyman Moinfar [sup.1] [sup.2], Somayeh Mohammadi [sup.1] [sup.3], Gholamreza Khayatian [sup.1] Author Affiliations: (1) grid.411189.4, 0000 0000 9352 9878, Department of Chemistry, Faculty of Science, University [...]

Published
2021
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21. PROBABILISTIC ASSESSMENT OF MULTI-MECHANISM FLOOD HAZARDS USING A BAYESIAN APPROACH

Author

Mohammadi, Somayeh and Mohammadi, Somayeh

Abstract

Multi-mechanism floods (MMFs) are flood events caused by the simultaneous occurrence of multiple flood mechanisms such as storm surge, precipitation, waves, and tides. The term compound floods, which is a broader term frequently used in the current literature, includes MMFs as a subset. MMF events can have more severe impacts on communities and the built environment than single-mechanism floods. Therefore, a realistic probabilistic assessment of the frequency and severity of flood hazards requires the inclusion of the hazard contribution of MMFs. This dissertation addresses four objectives related to the probabilistic evaluation of MMFs. First, this dissertation develops a lexicon and framework for discussing a broad range of MMFs and then defines the gaps and shortcomings of the current literature. Second, this dissertation develops a Bayesian approach (BA) for performing a probabilistic assessment of a specific type of MMF hazard, namely tropical cyclone-induced increase in river discharge arising from multiple flood mechanisms. The Bayesian model is built using a Bayesian Network (BN). Five computationally justifiable predictive "placeholder" models are developed in this approach to estimate conditional probability tables in the BN. Third, the performance of the BN is assessed for "reasonableness" using three historical storms that affected the study area. Fourth, the capability of the BN for information updating is demonstrated by setting information related to historical observations as evidence in the developed BN and conducting forward and backward inferences. Finally, this study concludes with a summary and synthesis of the gaps and weaknesses of current literature and practices in addressing compound flood hazards. This study further highlights the capabilities and challenges of the developed Bayesian approach and outlines proposed next steps to address these challenges.

Published
2022

23. Additional file 1 of Carbon dots hybrid for dual fluorescent detection of microRNA-21 integrated bioimaging of MCF-7 using a microfluidic platform

Author

Mohammadi, Somayeh, Salimi, Abdollah, Hoseinkhani, Zohreh, Ghasemi, Foad, and Mansouri, Kamran

Abstract

Additional file 1. Additional informations includes SEM images of CDs, impedance data, UV���vis and fluorescence spectra of B-CD and Y-CD mixture and Cellular cytotoxicity evaluation of the BY-CD toward MCF-7 cells.

Published
2022
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26. The effect of ball-milling parameters on the structures of Ti3AlC2 MAX phase and resultant Ti3C2Tx MXene.

Author

Ahmadian, Zahra, Azad, Mohammad Javad, Mohammadi, Somayeh, Mortazavi, Yadollah, and Khodadadi, Abbas Ali

Subjects
MILLING (Metalwork), TITANIUM compounds, PARAMETER estimation, SINTERING, EFFECT of temperature on metals
Abstract

In this work, the effects of ball-milling parameters on the structure of the Ti3AlC2 MAX-phase, the precursor of Ti3C2Tx MXene, is investigated. To clarify this effect, three approaches with different milling parameters were used to synthesize Ti3AlC2 MAX-phase. In all approaches, the initial elements with the proportion of 3Ti:1.3Al:1.9C were milled at different milling times, intervals, and rotating speeds. The resulting powders were sintered in a SPS furnace with the sintering temperature of 1000-1150 °C. According to our observation, emerging intermediate Ti and Al compounds in the milling process is the key point for forming the final Ti3AlC2 since such compounds would assist the formation of MAX-phase in the SPS process. Moreover, the temperature increment during the milling process is necessary for the formation of such intermediate compounds. This condition can be achieved when the ratio of intervals to milling times in each milling step is low enough (5 min per 30 min) or the rotating speed is high enough (around 600 rpm). The Al layers in Ti3AlC2 MAX-phase obtained in each approach are etched by HF solution to reveal the difference between the resultant Ti3C2Tx MXene nanolayers. Our characterization suggests that ball-milling at 400 rpm for 18 hours with 5-minute intervals produces the highest quality MAX-phase and MXene. [ABSTRACT FROM AUTHOR]

Published
2022
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27. Centaurea (sect. Microlophus)

Author

Ranjbar, Massoud, Askari, Ali, and Mohammadi, Somayeh

Subjects
Tracheophyta, Magnoliopsida, Asterales, Centaurea, Biodiversity, Asteraceae, Plantae, Taxonomy
Abstract

Key to the closely related species of Centaurea sect. Microlophus 1. Plant covered with arachnoid indumentum; lower cauline leaves oblong to elliptic, entire; upper cauline leaves 1���4 cm long, decurrent for 2 to 10 mm; involucres narrowly ovoid, 5���8 mm wide................................................................................................2 ��� Plant covered with sparsely hirsute-articulate indumentum or subglabrous; lower cauline leaves pinnatipartite or pinnatilobate, dentate; upper cauline leaves 5���9 cm long, sessile; involucres ovoid, 17���22 mm wide...................................................................3 2. Basal cauline leaves oblong to lyrate or pinnatilobate, 15.5���17 cm long, terminal segment triangular; median cauline leaves lanceolate or lanceolate-oblong, sessile; involucres narrowly ovoid; central florets up to 20 mm long.......................... C. koeieana ��� Basal cauline leaves pinnatipartite, pinnatilobate or pinnatifid, 44���46 cm long, terminal segment lanceolate-linear; median cauline leaves pinnatipartite, pinnatilobate or pinnatifid, decurrent for 15���20 mm; involucres conical, central florets up to 14 mm long....................................................................................................................................................................................... C. kuhdashtensis 3. Plant indumentum sparsely hirsute-articulate or subglabrous; basal cauline leaves lyrate, 10���17 �� 1.5���3 cm, dentate or lobate; upper cauline leaves sessile; involucres ovoid, 12���18 mm long; achene 5���6 mm long...................................................... C. pabotii ��� Plant indumentum densely hispid; basal cauline leaves pinnatipartite, pinnatilobate or pinnatifid, 23���26 �� 6���10 cm, incised; upper cauline leaves decurrent for 2���3 mm; involucres subconical, 20���23 mm long; achene 2���3 mm long............................. C. dezfulica, Published as part of Ranjbar, Massoud, Askari, Ali & Mohammadi, Somayeh, 2021, Two new species of Centaurea sect. Microlophus (Asteraceae, Cardueae) from Iran, pp. 125-138 in Phytotaxa 480 (2) on pages 134-138, DOI: 10.11646/phytotaxa.480.2.2, http://zenodo.org/record/5415987

Published
2021
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28. Centaurea kuhdashtensis Ranjbar & Mohamadi 2021, sp. nov

Author

Ranjbar, Massoud, Askari, Ali, and Mohammadi, Somayeh

Subjects
Tracheophyta, Magnoliopsida, Centaurea kuhdashtensis, Asterales, Centaurea, Biodiversity, Asteraceae, Plantae, Taxonomy
Abstract

2. Centaurea kuhdashtensis Ranjbar & Mohamadi, sp. nov. Figs. 7���9. Diagnosis:��� Centaurea kuhdashtensis is similar to C. koeieana but differs by hispid (vs. arachnoid) hairs, upper cauline leaves decurrent for 3���10 mm (vs. 2���7 mm), lower cauline leaves 35���38 �� 10���11.5 cm (vs. 15���17 �� 2���3.5 cm), median [lower] cauline leaves pinnatipartite- pinnatilobate or pinnatifid (vs. lanceolate or lanceolate-oblong), margin entire-dentate (vs. irregularly dentate or entire), segments lower cauline leaves 15���17 pairs (vs. no segment), basal cauline leaves 44���46 �� 13���15 cm (vs. 15.5���17 �� 2���3 cm), basal cauline leaves pinnatipartite-pinnatilobate or pinnatifid (vs. oblong lyrate or pinnatilobate), basal cauline leaves 14���15 pairs (vs. 1���2), margin basal cauline leaves irregular dentate (vs. dentate or lobate), involucres 10���16 �� 5���7 mm (vs. 15���18 �� 5���8 mm). Type:��� IRAN. Lorestan, Bolouran to Baba Zeyd, 65 km to Baba Zeyd, 35 km to Kuhdasht, 33�� 33��� 22������ N, 47�� 18��� 01������ E, 1504 m, 1 May 2013, M . Ranjbar 33645 (holotype: BASU). Perennial plants with thickened rootstock, usually completely green up to 80 cm tall, in the lower part loosely covered with hispid hairs. Stem erect, often branched above, sometimes branched in the median to upper parts striate striped, many branched, usually striped, 1���3 mm in diam. at base, cylindrical. Sometimes ascending, branched often at the base, or branched in median part, thinly white striate, rigid densely leafy throughout. Leaves and stem loosely hispid, venation actinodromous at basal and lower stem leaves. Basal cauline leaves pinnatipartite, pinnatilobate or pinnatifid, 44���46 �� 13���15 cm, terminal segments larger, lanceolate-linear, lateral segments 14���15 pairs, lanceolate-linear, segments sometimes lobed near the base, acute at apex, margin irregular dentate. Lower cauline leaves pinnatipartite to pinnately divided, odd pinnate in outline, 35���38 �� 10���11.5 cm, terminal segments larger, oblong-lanceolate, lateral segments 15���17 pairs, oblong-lanceolate, segments sometimes lobed near base, acute at apex, margin dentate. Median [lower] cauline leaves pinnatipartite, pinnatilobate or pinnatifid, odd pinnate in outline, 10���13 �� 3���5 cm, margin entire dentate, decurrent for 15���20 mm, margin dentate, venation reticulate. Median [upper] cauline leaves sessile, simple oblong-lanceolate, 9���10.5 �� 0.8���0.9 cm, acute to acuminate at apex, decurrent for 40���50 mm, perfoliate, margin entire. Upper cauline leaves sessile, simple, oblong to oblong-lanceolate in outline, 1���3 �� 0.3���0.5 cm, shortly decurrent for 3���10 mm, acuminate at apex, venation reticulate, margin entire. Involucres conical contracted towards top, diamond, 10���16 �� 5���7 mm. Phyllaries multiseriate, imbricate, coriaceous, yellowish or green, hairy. Outer phyllaries ovate, 3���5 mm long. Median phyllaries ovate to oblong 6���8 mm long, spine 1 mm long. Inner phyllaries oblong, 10���12 mm long. Appendages forming a minute deciduous tip, not decurrent, outer phyllaries deciduous, inner phyllaries persistent, always small, not concealing the basal part of phyllaries. Flowers yellowish-green; central flowers hermaphrodite, up to 14 mm long; peripheral sterile, not radiant, limb lobes linear. Achene oblong, 1���2 mm long. Pappus multiseriate, scabrous, the outer 3���6 mm long, the inner much shorter. Etymology: ���The specific epithet refers to Kuhdasht city, near which the type specimens were collected. Phenology: ���Flowering March (second half) to May. Distribution and habitat: ��� Centaurea kuhdashtensis occurs in Kuhdasht area, a mountainous region in western Lorestan province, Iran. Phytogeographically it is an Irano-Turanian element and grows in dry clay, stony slopes and screes, at 1400���1600 m (Fig. 6). IUCN Red List category: ��� Centaurea kuhdashtensis is known from a few small populations, consisting of no more than five plants, observed in the mountains between Bolouran and Baba Zeyd village (M. Ranjbar, pers. obs.). According to the IUCN Red List criteria (IUCN 2001), this species could be classified as Critically Endangered (CR). This category includes taxa in which fewer than 50 mature individuals exist. In recent years, several morphological and molecular studies have been done on this section (Garcia-Jacas et al. 2006). The evaluated morphological characters were most suitable for separating Centaurea dezfulica from C. pabotii and C. kuhdashtensis from C. koeieana (Table 1)., Published as part of Ranjbar, Massoud, Askari, Ali & Mohammadi, Somayeh, 2021, Two new species of Centaurea sect. Microlophus (Asteraceae, Cardueae) from Iran, pp. 125-138 in Phytotaxa 480 (2) on page 132, DOI: 10.11646/phytotaxa.480.2.2, http://zenodo.org/record/5415987, {"references":["IUCN (2001) IUCN Red List Categories and Criteria. Version 3. 1. Species Survival Commission, IUCN, Gland and Cambridge, 33 pp.","Garcia-Jacas, N., Uysal, T., Romashchenko, K., Suarez Santiago, V. N., Ertudrul, K. & Susanna, A. (2006) Centaurea revisited: A molecular survey of the Jacea Group. Annals of Botany 98: 741 - 753."]}

Published
2021
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29. Centaurea dezfulica Ranjbar & Mohamadi 2021, sp. nov

Author

Ranjbar, Massoud, Askari, Ali, and Mohammadi, Somayeh

Subjects
Tracheophyta, Magnoliopsida, Centaurea dezfulica, Asterales, Centaurea, Biodiversity, Asteraceae, Plantae, Taxonomy
Abstract

1. Centaurea dezfulica Ranjbar & Mohamadi, sp. nov. Figs. 1���5. Diagnosis:��� Centaurea dezfulica is similar to C. pabotii but differs by its densely hispid indumentum (vs. sparsely hirsute-articulate or subglabrous), stems 45���50 cm high (vs. up to 60 cm), upper cauline leaves 3���7 �� 0.3���0.7 cm (vs. 5���9 �� 0.4���0.7 cm), upper cauline leaves decurrent for 2���3 mm (vs. sessile), median cauline leaves 14���16 �� 2���4 cm (vs. 10���18 �� 2���3 cm), lower cauline leaves lateral segment oblong-lanceolate (vs. lanceolate), incised (vs. dentate), 7���8 segments (vs. up to 10 segments), basal cauline leaves 23���26 �� 6���10 cm (vs. 10���17 �� 15���30 cm), 6���10 segments (vs. 10���12 segments), incised (vs. dentate or lobate), involucres 20���23 �� 10���20 mm (vs. 12���18 �� 17���22 mm), phyllaries obtuse (vs. acute), appendage 2���3 mm long (vs. 1���2 mm long), spinule 1���2 mm long (vs. 0.2���0.4 mm long), central florets up to 22 mm long (vs. up to 28 long), achene 2���3 mm long (vs. 5���6 mm long). Typus:��� IRAN. Khuzestan, Dezful, Dez Dam, 32�� 38��� 27������ N, 48�� 27��� 13������ E, 340 m, 29 July 2014, M . Ranjbar 36632 (holotype: BASU). Perennial plant, with thickened rootstock, up to 45���50 cm tall, green or pale green throughout. Stem upright, in lower part densely hispid. Stems many, erect to ascending, often branched in lower to upper parts striate striped, many branched, lateral branches 14���28 cm long bearing a few small leaves and ending in a capitulum, 1���2 mm in diam. at the base, cylindrical, sometimes ascending, often branched at the base, or branched in median part, thinly white striate, rigid, densely leafy throughout. Leaves and stem densely hispid-tomentose, venation actinodromous at basal and lower cauline leaves. Basal cauline leaves pinnatipartite-pinnatilobate or pinnatifid, 23���26 �� 6���10 cm, terminal segments larger, lanceolate-linear, lateral segments 6���10 pairs, lanceolate-linear; segments sometimes lobed near the base, acute at apex, margin incised. Lower cauline leaves pinnatipartite-pinnatilobate or pinnatifid, 22���28 �� 8���10 cm, terminal segments larger than lateral one, oblong-lanceolate, lateral segments 7���8 pairs, oblong-lanceolate; segments sometimes lobed near the base, acute at apex, margin incised. Median [lower] cauline leaves pinnatipartitepinnatilobate or pinnatifid, 14���16 �� 2���4 cm, decurrent for 10���15 mm, margin incised, venation reticulate. Median [upper] cauline leaves sessile, simple oblong-lanceolate, 13���15 �� 1���1.5 cm, acute to acuminate at apex, decurrent for 15���20 mm, perfoliate, margin dentate. Upper cauline leaves sessile, simple, oblong to oblong-lanceolate, 3���7 �� 0.3���0.7 cm, shortly decurrent for 2���3 mm, acuminate at apex, venation parallel, margin entire. Capitula numerous, arranged in a corymb, usually somewhat removed from the base of capitula. Involucres subconical, contracted towards top, diamond, 20���23 �� 10���20 mm. Phyllaries multiseriate, imbricate, coriaceous, yellowish or green, hairy. Outer phyllaries ovate, 4���10 mm long. Median phyllaries ovate to oblong 8���12 mm long. Inner phyllaries obtuse, 14���15 mm long. Appendages forming a minute deciduous tip, not decurrent, not concealing basal part of phyllaries, fringed in the upper part or with 1���2 pairs of cilia on each side, 1 mm long, spine triangular, 1���2 mm long, longer than the nearest cilia. Flowers yellowish pale green; central flowers hermaphrodite, up to 22 mm long; peripheral sterile, not radiant, limb lobes linear. Achene lanceolate-oblong, 2���3 mm long. Pappus multiseriate, scabrous, the outer 5���7 mm long, the inner much shorter. Etymology: ���The specific epithet refers to Dezful city, where the new taxon was found. Phenology: ���Flowering March to May. IUCN Red List category:��� Centaurea dezfulica is known from a few small populations, consisting of no more than five plants, observed in claystone and flat terrain around the Dez dam (M. Ranjbar, pers. obs.). According to the IUCN Red List criteria (IUCN 2001), this species could be classified as Critically Endangered (CRD). This category includes taxa in which fewer than 50 mature individuals exist. Distribution and habitat:���The new species is known only from the clay soils (Fig. 6). It is distributed at lower altitudes (340 m) in Khuzestan province compared to the other related species (Table 1). This taxon is restricted to south-western Iran and is endemic to the Irano Turanian floristic region. Centaurea dezfulica occurs with Anchusa strigosa, Convolvulus stachydifolius, Klasea khuzistanica, Onosma albo-roseum, Salvia syriaca, and Verbascum pseudodigitalis., Published as part of Ranjbar, Massoud, Askari, Ali & Mohammadi, Somayeh, 2021, Two new species of Centaurea sect. Microlophus (Asteraceae, Cardueae) from Iran, pp. 125-138 in Phytotaxa 480 (2) on page 126, DOI: 10.11646/phytotaxa.480.2.2, http://zenodo.org/record/5415987, {"references":["IUCN (2001) IUCN Red List Categories and Criteria. Version 3. 1. Species Survival Commission, IUCN, Gland and Cambridge, 33 pp."]}

Published
2021
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30. Asymmetric fluorination reactions promoted by chiral hydrogen bonding‐based organocatalysts

Author

Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Gobierno de Aragón, Ministerio de Economía y Competitividad (España), European Commission, Ministerio de Economía, Industria y Competitividad (España), Auria-Luna, Fernando, Mohammadi, Somayeh, Divar, Masoumeh, Gimeno, M. Concepción, Herrera, Raquel P., Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Gobierno de Aragón, Ministerio de Economía y Competitividad (España), European Commission, Ministerio de Economía, Industria y Competitividad (España), Auria-Luna, Fernando, Mohammadi, Somayeh, Divar, Masoumeh, Gimeno, M. Concepción, and Herrera, Raquel P.

Abstract

Fluorinated compounds can exhibit interesting biological properties. The importance of these species has made that the chemistry of fluorine has experienced a great development. On this review, the recent advances on asymmetric fluorination reactions promoted by chiral hydrogen bonding‐based organocatalysts are discussed. Hence, examples using phosphoric acid, carboxylic acid, (thio)urea and squaramide derivatives are illustrated. The growth of this field is amazing. We have only considered pivotal works in which direct fluorination takes place using a fluorinating agent, leaving aside the reactions where a fluorine atom is incorporated from the beginning as part of other reactants. Herein, the scarce existing examples on this field of research have been compiled.

Published
2020

36. Asymmetric organocatalytic synthesis of substituted chiral 1,4-dihydropyridine derivatives

Author

Ministerio de Economía y Competitividad (España), Consejo Superior de Investigaciones Científicas (España), European Commission, Gobierno de Aragón, Auria-Luna, Fernando, Marqués-López, Eugenia, Gimeno, M. Concepción, Heiran, Roghayeh, Mohammadi, Somayeh, Herrera, Raquel P., Ministerio de Economía y Competitividad (España), Consejo Superior de Investigaciones Científicas (España), European Commission, Gobierno de Aragón, Auria-Luna, Fernando, Marqués-López, Eugenia, Gimeno, M. Concepción, Heiran, Roghayeh, Mohammadi, Somayeh, and Herrera, Raquel P.

Abstract

The first cinchona-alkaloid-organocatalyzed enantioselective synthesis of chiral 1,4-dihydropyridine derivatives is described. Bis-cinchona catalyst 3b activates the Michael addition reaction between malononitrile derivatives 2 and enamines 1, affording the appealing and highly substituted 1,4-dihydropyridines 4 with very good results in most cases. This is one of very few examples of the synthesis of chiral 1,4-dihydropyridines by an enantioselective catalytic procedure. The highly substituted final compounds are of interest for their potential biological activity. This efficient protocol opens the door to a new area of research for the asymmetric construction of these skeletons for which enantioselective syntheses are still very limited.

Published
2017

37. Kadmiyumun Fide Aşamasındaki İki Makarnalık Buğday (Triticum durum) Genotipinin Büyüme ve Bazı Oksidatif Stres Parametrelerine Etkisi

Author

MOHAMMADI, Somayeh, POURMOHAMMAD, Alireza, ESFANDIARI, Ezotollah, and MOUSAVI, Seyed Bahman

Subjects
Antioksidan enzimler,Kadmiyum,Savunma mekanizmaları,Kuru ağırlık,Hidrojen peroksit, Fen, Engineering, Science, Mühendislik, Antioxidant enzymes,Cadmium,Defense mechanisms,Dry weight,Hydrogen peroxide
Abstract

Seedlings of two durumwheat (Triticum durum L.) genotypes, sensitive and tolerant to cadmium,were treated at 3 to 4 leaves stage. The enzymic activities of catalaseglutathione s-transferase (GST) and guaiacol peroxidase (GPX) in the case ofsensitive genotype significantly increased compared to the control. Theactivity level of catalase (CAT) and ascorbate peroxidase (APX), however, didnot show a significant change. Moreover,the enzymic activity of GPX, GST, CAT and also APX, in the case of cadmiumutilization had not a significant change compared to the control. It is arguedthat the sum of activities of hydrogen peroxide (H2O2)-scavengingenzymes helped control of the amount of the pernicious compound (H2O2)at tolerant genotype. Cadmium stress led to the significant increase ofmalondialdehyde (MDA) in both durum wheat genotypes, although membrane damageand lipid peroxidation were more severe with regard to sensitive genotype. Itfollows that the augmentation of H2O2 and the drop in GSTactivity substantiate further increase in the amount of MDA in sensitivegenotype. It is concluded that the activity of H2O2 scavengingenzymes and that of GST enzyme have a crucial role in detoxifying toxiccompounds leading to more resistance against salt stress., Kadmiyuma duyarlı ve tolerant iki makarnalık buğday(Triticum durum L.) genotipininfideleri 3 ila 4 yapraklı aşamada uygulmaya maruz bırakılmıştır. Duyarlı genotipte katalaz glutatyon s-transferaz(GST) ve guaiacol peroksidaz (GPX) enzim aktiviteleri kontrol grubuna göreanlamlı olarak artmıştır. Bununla birlikte, katalaz(CAT) ve askorbat peroksidaz (APX) aktivite seviyelerinde önemli bir değişiklikgözlenmemiştir. Ek olarak, kadmiyumkullanımı durumunda, GPX, GST, CAT ve ayrıca APX'in enzimatik aktivitesi,kontrol ile karşılaştırıldığında önemli bir değişiklik göstermemiştir. Hidrojen peroksit (H2O2)temizleyici enzimlerinin toplam aktivitelerinin tolerant genotipte zararlıbileşim (H2O2) miktarının kontrol edilmesine yardımcıolduğu ileri sürülmektedir. Kadmiyum stresi, her iki buğday genotipinde malondialdehit (MDA) 'nınbelirgin bir şekilde artmasına yol açmış; buna karşın membran hasarı ve lipitperoksidasyonu hassas genotip açısından daha şiddetli bulunmuştur. H2O2 temizleyici enzimlerininartması ve GST aktivitesindeki düşüş, hassas genotipteki MDA miktarında dahafazla artışa yol açmıştır. H2O2 temizleyici enzimlerin vetoksik bileşiklerin detoksifikasyonunda önemli bir rolü olan GST enzimininaktivitesinin, tuz stresine karşı daha fazladayanıklılık sağladığı sonucuna varılmıştır.

Published
2016

41. Adiponectin as a potential biomarker of vascular disease

Author

Mohammadi, Somayeh, Arefhosseini,Seyed Rafie, Ebrahimi-Mameghani,Mehrangiz, Fallah,Parviz, and Bazi,Zahra

Subjects
Vascular Health and Risk Management
Abstract

Mehrangiz Ebrahimi-Mamaeghani,1 Somayeh Mohammadi,2 Seyed Rafie Arefhosseini,3 Parviz Fallah,4 Zahra Bazi5 1Nutrition Research Center, 2Department of Nutrition, 3Department of Food Technology, Faculty of Nutrition Sciences, Tabriz University of Medical Sciences, Tabriz, 4Department of Molecular Biology and Genetic Engineering, Stem Cell Technology Research Center, Tehran, 5Department of Biotechnology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, IranAbstract: The increasing prevalence of diabetes and its complications heralds an alarming situation worldwide. Obesity-associated changes in circulating adiponectin concentrations have the capacity to predict insulin sensitivity and are a link between obesity and a number of vascular diseases. One obvious consequence of obesity is a decrease in circulating levels of adiponectin, which are associated with cardiovascular disorders and associated vascular comorbidities. Human and animal studies have demonstrated decreased adiponectin to be an independent risk factor for cardiovascular disease. However, in animal studies, increased circulating adiponectin alleviates obesity-induced endothelial dysfunction and hypertension, and also prevents atherosclerosis, myocardial infarction, and diabetic cardiac tissue disorders. Further, metabolism of a number of foods and medications are affected by induction of adiponectin. Adiponectin has beneficial effects on cardiovascular cells via its antidiabetic, anti-inflammatory, antioxidant, antiapoptotic, antiatherogenic, vasodilatory, and antithrombotic activity, and consequently has a favorable effect on cardiac and vascular health. Understanding the molecular mechanisms underlying the regulation of adiponectin secretion and signaling is critical for designing new therapeutic strategies. This review summarizes the recent evidence for the physiological role and clinical significance of adiponectin in vascular health, identification of the receptor and post-receptor signaling events related to the protective effects of the adiponectin system on vascular compartments, and its potential use as a target for therapeutic intervention in vascular disease.Keywords: obesity, adiponectin, vascular disease

Published
2015

44. Dietary Regulation of miR-33b and miR-29a in Relationship to Metabolic Biomarkers of Glucose and Lipids in Obese Diabetic Women: A Randomized Clinical Controlled Study

Author

Mohammadi, Somayeh, primary, Ebrahimi-Mameghani, Mehrangiz, additional, Arefhosseini, Seyed Rafie, additional, Fallah, Parviz, additional, Asghari Jafarabadi, Mohammad, additional, Zununi, Sepideh, additional, Soleimani, Masoud, additional, Banitalebi Dehkordi, Mehdi, additional, and Ghanbarian, Hossein, additional

Published
2016
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49. Adiponectin as a potential biomarker of vascular disease

Author

Ebrahimi-Mameghani,Mehrangiz, Mohammadi,Somayeh, Arefhosseini,Seyed Rafie, Fallah,Parviz, Bazi,Zahra, Ebrahimi-Mameghani,Mehrangiz, Mohammadi,Somayeh, Arefhosseini,Seyed Rafie, Fallah,Parviz, and Bazi,Zahra

Abstract

Mehrangiz Ebrahimi-Mamaeghani,1 Somayeh Mohammadi,2 Seyed Rafie Arefhosseini,3 Parviz Fallah,4 Zahra Bazi5 1Nutrition Research Center, 2Department of Nutrition, 3Department of Food Technology, Faculty of Nutrition Sciences, Tabriz University of Medical Sciences, Tabriz, 4Department of Molecular Biology and Genetic Engineering, Stem Cell Technology Research Center, Tehran, 5Department of Biotechnology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, IranAbstract: The increasing prevalence of diabetes and its complications heralds an alarming situation worldwide. Obesity-associated changes in circulating adiponectin concentrations have the capacity to predict insulin sensitivity and are a link between obesity and a number of vascular diseases. One obvious consequence of obesity is a decrease in circulating levels of adiponectin, which are associated with cardiovascular disorders and associated vascular comorbidities. Human and animal studies have demonstrated decreased adiponectin to be an independent risk factor for cardiovascular disease. However, in animal studies, increased circulating adiponectin alleviates obesity-induced endothelial dysfunction and hypertension, and also prevents atherosclerosis, myocardial infarction, and diabetic cardiac tissue disorders. Further, metabolism of a number of foods and medications are affected by induction of adiponectin. Adiponectin has beneficial effects on cardiovascular cells via its antidiabetic, anti-inflammatory, antioxidant, antiapoptotic, antiatherogenic, vasodilatory, and antithrombotic activity, and consequently has a favorable effect on cardiac and vascular health. Understanding the molecular mechanisms underlying the regulation of adiponectin secretion and signaling is critical for designing new therapeutic strategies. This review summarizes the recent evidence for the physiological role and clinical significance of adiponectin in vascular health, identification of the receptor and post

Published
2015

50. New organocatalytic asymmetric synthesis of highly substituted chiral 2-oxospiro-[indole-3,4′- (1′,4′-dihydropyridine)] derivatives

Author

Ministerio de Economía y Competitividad (España), Universidad de Zaragoza, Gobierno de Aragón, Auria-Luna, Fernando, Marqués-López, Eugenia, Mohammadi, Somayeh, Heiran, Roghayeh, Herrera, Raquel P., Ministerio de Economía y Competitividad (España), Universidad de Zaragoza, Gobierno de Aragón, Auria-Luna, Fernando, Marqués-López, Eugenia, Mohammadi, Somayeh, Heiran, Roghayeh, and Herrera, Raquel P.

Abstract

Herein, we report our preliminary results concerning the first promising asymmetric synthesis of highly functionalized 2-oxospiro-[indole-3,4′-(1′,4′-dihydropyridine)] via the reaction of an enamine with isatylidene malononitrile derivatives in the presence of a chiral base organocatalyst. The moderate, but promising, enantioselectivity observed (30%–58% ee (enantiomeric excess)) opens the door to a new area of research for the asymmetric construction of these appealing spirooxindole skeletons, whose enantioselective syntheses are still very limited.

Published
2015

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