Article
Marine & Freshwater Biology
A. Ratnovskaya, T. Kuzmina
Summary: In this paper, the authors provide the first 3D reconstruction of the coelomic system of the plectolophous lophophore in the terebratulid brachiopod Coptothyris grayi. They found that the coelomic system consists of three separate compartments, which are responsible for transport and excretion, serving as the hydrostatic skeleton, and efficient use of the mantle cavity.
RUSSIAN JOURNAL OF MARINE BIOLOGY
(2022)
Article
Biology
Elena Temereva
Summary: This research describes the nervous system of Novocrania anomala adults for the first time, and supports the Calciata hypothesis of brachiopod phylogeny through comparative analysis.
Article
Biology
Hyla C. Sweet, Guy Azriel, Nasreen Jaff, Jacqueline Moser, Taylor A. Riola, Christina Ideman, Melissa Barton, Jack Nelson, Madison M. Lenhart
Summary: In brittle stars, the coelomic cavities play a crucial role in the development of internal organ systems. However, different lineages have evolved different modes of development, with some lacking the ophiopluteus larva. This study examines the modifications to the origin and early development of the coelomic cavities in a vitellaria larva. Confocal microscopy and three-dimensional modeling reveal new details about the morphogenesis of these cavities.
BIOLOGICAL BULLETIN
(2022)
Article
Fisheries
Yupo Cao, Xuli Lu, Yaping Dai, Yahui Li, Fei Liu, Wei Zhou, Jihua Li, Baodong Zheng
Summary: Proteomic analysis of Sipunculus nudus revealed immune-related proteins and differentially expressed proteins in the body wall and coelomic fluid. GO and KEGG pathway analyses highlighted similarities and differences in biological processes between the two parts of Sipunculus nudus. This research provides valuable information for understanding functional proteins in Sipunculus nudus and their potential applications in functional foods and medicines.
FISH & SHELLFISH IMMUNOLOGY
(2021)
Article
Fisheries
Soolmaz Soleimani, Sakineh Mashjoor, Soumita Mitra, Morteza Yousefzadi, Hassan Rezadoost
Summary: Echinoid pigments exhibit various biological properties such as antioxidant, cytotoxic, and antibacterial activities, making them potential natural antioxidants. By analyzing the coelomic fluid of Echinometra mathaei, poly-hydroxylated naphthoquinone (PHNQ) pigments were identified for the first time, showing high DPPH radical scavenging activity.
FISH & SHELLFISH IMMUNOLOGY
(2021)
Article
Biodiversity Conservation
Toma Margherita, Francesco Enrichetti, Giorgio Bavestrello, Simonepietro Canese, Alessandro Cau, Franco Andaloro, Michela Angiolillo, Silvestro Greco, Marzia Bo
Summary: Compared to fossil brachiopods, living brachiopods are less studied due to their occurrence in remote and dark environments. However, the use of remotely operated vehicles (ROVs) has allowed for a better exploration of their diversity and ecology in the mesophotic and bathyal zones. A large-scale investigation using video footage from different sites in Italy revealed four common brachiopod species, with high occurrences in the northern areas and on offshore seamounts. Brachiopods play an important role in deep-sea Mediterranean ecosystems through their occupancy of substrate and involvement in pelagic-benthic processes.
Article
Mathematics, Applied
Manuel Nunez
Summary: The pressure at the boundary of a slender body of revolution immersed in a subsonic or supersonic flow can be determined by classical asymptotic analysis. The inverse problem, finding the shape of the cavity based on the pressure, is relevant for the study of magnetic cavities. The equation determining the shape involves a nonlinear term and is difficult to solve, but estimates can be found to constrain the functional form of the inner magnetic field for the existence of the cavity. The Fourier transform of the convolution term provides insight into the solution behavior, and an approximation can be obtained by solving a sequence of ordinary differential equations in the supersonic case.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2023)
Article
Multidisciplinary Sciences
Maxim K. Zalalutdinov, Jeremy T. Robinson, Jose J. Fonseca, Samuel W. LaGasse, Tribhuwan Pandey, Lucas R. Lindsay, Thomas L. Reinecke, Douglas M. Photiadis, James C. Culbertson, Cory D. Cress, Brian H. Houston
Summary: The authors present high frequency 2D acoustic cavities operating in the 50-600GHz range, showing quality factors approaching the limit set by lattice anharmonicity. Functionality expanded by heterogeneities (steps and interfaces) is demonstrated through coupled cavities and frequency comb generation.
NATURE COMMUNICATIONS
(2021)
Article
Optics
Matt Jaffe, Lukas Palm, Claire Baum, Lavanya Taneja, Jonathan Simon
Summary: Optical cavities play a crucial role in modern quantum science, influencing mode shapes and energies. Traditional paraxial quadratic optics is insufficient to capture optical aberrations in modern high-finesse optical cavities. Developing a new theory of resonator aberrations can lead to improved cavity design and the realization of cavities with smaller waists and more degenerate modes.
Article
Astronomy & Astrophysics
E. Cavalcanti, A. P. C. Malbouisson
Summary: We propose an alternative approach to study quantum forces inside a cavity, considering both a free scalar field and a free fermionic field. By utilizing a generalized Matsubara procedure, we calculate the quantum pressure on the boundaries of a compactified space in a thermal bath. Furthermore, we investigate the attractive or repulsive nature of the quantum forces by considering both periodic and antiperiodic boundary conditions within the cavity. Our findings emphasize the significance and interdisciplinary nature of the generalized Matsubara procedure as a theoretical framework to analyze quantum phenomena in nontrivial topologies.
Article
Chemistry, Physical
Brian S. Y. Kim, Aaron J. Sternbach, Min Sup Choi, Zhiyuan Sun, Francesco L. Ruta, Yinming Shao, Alexander S. McLeod, Lin Xiong, Yinan Dong, Ted S. Chung, Anjaly Rajendran, Song Liu, Ankur Nipane, Sang Hoon Chae, Amirali Zangiabadi, Xiaodong Xu, Andrew J. Millis, P. James Schuck, Cory. R. Dean, James C. Hone, D. N. Basov
Summary: Researchers have demonstrated a charge transfer strategy to program ambipolar low-loss graphene plasmonic structures, by covering graphene with transition-metal dichalcogenides and subsequently oxidizing them into transition-metal oxides. They achieve ambipolar low-loss plasmon polaritons at the transition-metal-oxide/graphene interfaces and precisely control the electron and hole densities induced by oxidation-activated charge transfer with the help of dielectric van der Waals spacers.
Article
Anatomy & Morphology
Kevin Le Verger, Laureano R. Gonzalez Ruiz, Guillaume Billet
Summary: The evolutionary history of the Cingulata, especially the glyptodonts, remains a debated topic in both morphological and molecular phylogenies. Recent studies suggest that internal anatomy research may enrich morphological matrices for phylogenetic study, but there is still a lack of research on internal cranial anatomy in this group. The comparison of intracranial osseous canals and cavities in extant and extinct cingulates has provided new anatomical variations that could be of interest for further exploring the evolutionary history of cingulates and the origins of glyptodonts on a morphological basis.
JOURNAL OF ANATOMY
(2021)
Article
Chemistry, Physical
Babak Nikoobakht, Jonathan Lee, Amit Agrawal, Scott Wight, Michael Shur
Summary: Nanostructured semiconductors have the potential to miniaturize electrically driven semiconductor lasers. This study analyzes lateral ZnO fins as an optical gain medium and an optical resonator, revealing their excellent performance in electron-hole pair collection efficiency and resonance mode formation.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Marine & Freshwater Biology
N. Anadon, I Fernandez-Rodriguez, A. Arias
Summary: An accurate understanding of species diversity in deep-sea ecosystems is crucial for protecting these environments. This study examined Brachiopoda samples from the Cantabrian Sea and Avile's Canyons System, providing insights into their ecology, distribution, and biogeographical history.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
News Item
Optics
Bruno Piccirillo, Veronica Vicuna-Hernandez
Summary: The resonance wavelengths of optical Mobius strip microcavities can be continuously tuned by changing the thickness-to-width ratio of the strip through geometric phase manipulation.
Article
Multidisciplinary Sciences
Elena N. Temereva
SCIENTIFIC REPORTS
(2020)
Article
Evolutionary Biology
Tatyana Kuzmina, Elena Temereva
Summary: The study describes the ultrastructure of the supraenteric and subenteric ganglia in the brachiopod Coptothyris grayi, revealing the organization of neurons and layers in each. The ganglia exhibit features that are considered primitive in the bilaterian ancestor, indicating they cannot be classified as true ganglia.
JOURNAL OF ZOOLOGICAL SYSTEMATICS AND EVOLUTIONARY RESEARCH
(2021)
Article
Zoology
Elena Temereva, Tatiana Shcherbakova, Alexander Tzetlin
Article
Zoology
Petr Kuznetsov, Anastassya Maiorova, Elena Temereva
Summary: Echiura, a small group of unsegmented marine worms, play an important role in benthic ecosystems worldwide. The study of Lissomyema mellita's anatomy reveals unique features such as glands in the anal lobe and ciliated grooves on the proboscis. The circulatory system of L. mellita shows complexity with novel vascular elements.
Article
Zoology
Feodor A. Plandin, Elena N. Temereva
Summary: This study provides the first complete 3D reconstruction of the coelomic system in the craniide brachiopod Novocrania anomala, revealing its complexity and some similarities with other groups. These findings contribute to a better understanding of the body plan and evolution of brachiopods.
Article
Zoology
Nadezhda Rimskaya-Korsakova, Nadezda Karaseva, Timofei Pimenov, Hans Tore Rapp, Eve Southward, Elena Temereva, Katrine Worsaae
Summary: The study on the Siboglinum fiordicum reveals a different pattern of muscle and septum formation compared to other annelids, with the body being divided into two regions before segments are laid down. This unique formation process may represent an adaptation of these annelids to their sedentary-tubicolous lifestyle.
FRONTIERS IN ZOOLOGY
(2021)
Article
Multidisciplinary Sciences
Elena N. Temereva, Tatyana V. Kuzmina
Summary: Recent research has shown similarities in the organization of the nervous and muscular systems of the lophophore in phoronids, brachiopods, and bryozoans, leading to debate over the evolution of the lophophore in some lophophorates. A study of the brachiopod Coptothyris grayi revealed that its innervation lacks the accessory brachial nerve and exhibits several evolutionary trends in its complex morphology. In brachiopods, the evolution of the lophophore nervous system involved the appearance and strengthening of the second accessory brachial nerve, as well as the reduction of some brachial nerves, reflecting changes in the complexity of the lophophore musculature.
SCIENTIFIC REPORTS
(2021)
Article
Evolutionary Biology
Tatyana Kuzmina, Elena Temereva
Summary: Despite the diversity in morphology of brachiopod tentacle organ, the lophophore, the structure of tentacle muscles varies among different species, with three types of tentacle organization identified.
JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION
(2022)
Article
Anatomy & Morphology
Petr Kuznetsov, Alexander Ereskovsky, Elena Temereva
Summary: This study provides a detailed description of the proboscis epithelium of females of B. viridis and describes for the first time the tissue structure and functions of different parts of the proboscis stem.
Article
Zoology
Elena Temereva, Nadezhda Rimskaya-Korsakova, Vyacheslav Dyachuk
Summary: Oweniidae are marine annelids with unique features in organ system, development, morphology, and ultrastructure. Analysis of the head region anatomy may provide insights into the unusual structures present in this group.
ZOOLOGICAL LETTERS
(2021)
Article
Anatomy & Morphology
Petr Kuznetsov, Elena Temereva
Summary: This study describes the ultrastructure of the proboscis blood vessels in females of B. viridis, provides accurate schemes, and suggests a new reconstruction of the axial blood vessel.
JOURNAL OF MORPHOLOGY
(2022)
Article
Biology
Elena Temereva
Summary: This research describes the nervous system of Novocrania anomala adults for the first time, and supports the Calciata hypothesis of brachiopod phylogeny through comparative analysis.
Article
Evolutionary Biology
Elena N. Temereva, Maria A. Isaeva, Igor A. Kosevich
Summary: This study investigates the morphology and innervation of the Lophophore of the ctenostome Flustrellidra hispida. The results suggest that the organization of the lophophore nervous system in F. hispida may reflect the ancestral state for all bryozoans. This finding sheds light on the evolutionary transformation of the lophophore nervous system in bryozoans.
JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION
(2023)
Article
Evolutionary Biology
Elena Temereva, Nadezhda Rimskaya-Korsakova
Summary: This study reports the discovery of a nuchal-like organ in the larvae of siboglinids, suggesting its possible involvement in functions other than larval settlement, such as communication or initiating departure from the tube.
JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION
(2023)
Article
Biodiversity Conservation
Anna A. Madison, Tatyana Kuzmina, Elena N. Temereva
Summary: The study describes the shells of juveniles of Lingula anatina from Vietnam and the Republic of the Philippines, revealing previously unknown features and proposing hypotheses on the evolution of brachiopod life cycles. The life cycle of extant lingulides, with planktotrophic juveniles hatching from egg envelopes, is suggested to be the most evolutionarily advanced and appeared in the early Silurian.