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Journal articles on the topic 'Arched transmission'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Woźniacka, Renata, Łukasz Oleksy, Agnieszka Jankowicz-Szymańska, Anna Mika, Renata Kielnar, and Artur Stolarczyk. "The Association between Symmetrical or Asymmetrical High-Arched Feet and Muscle Fatigue in Young Women." Symmetry 14, no. 1 (2022): 52. http://dx.doi.org/10.3390/sym14010052.

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The foot arches are responsible for proper foot loading, optimal force distribution, and transmission throughout the soft tissues. Since the foot arch is an elastic structure, able to adapt to forces transmitted by the foot, it was reported that low arch is related to excessive foot pronation, while high arched foot is more rigid and inflexible. Therefore, it is also probable, that foot arch alterations may change the force transmission via myofascial chains. The objective of this study was to evaluate the effect of symmetrical and asymmetrical excessive feet arching on muscle fatigue in the d

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Starikov, A. I., and V. N. Syzrantsev. "Calculation of the geometric and kinematic characteristics of the engagement of the arched teeth of a cylindrical gear with errors in the relative position." Bulletin of the South Ural State University series "Mechanical engineering industry" 23, no. 1 (2023): 5–18. http://dx.doi.org/10.14529/engin230101.

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The use of cylindrical gears with arched teeth in the drives of energy-saturated machines (locomotives, final drives of tractors, top drives of drilling rigs, helicopters) makes it possible to multiply the durability of gears compared to spur and helical gears. To date, a dozen and a half different techniques and methods for designing and manufacturing arched teeth of cylindrical wheels have been proposed. Among them, the most promising is the method of cutting arched teeth on CNC machines with circular cutter heads using the running-in method with a single division. The purpose of the article

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3

Krol, Oleg, and Volodymyr Sokolov. "Research of toothed belt transmission with arched teeth." Diagnostyka 21, no. 4 (2020): 15–22. http://dx.doi.org/10.29354/diag/127193.

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4

Carvalho, Isabella Fernandes, Louise Cristina Pereira Freitas, Phillipe Nogueira Barbosa Alencar, et al. "Restoration of a malformed primary incisor using digital technology in a pediatric patient with congenital Zika virus syndrome: A case report." Journal of Dental Research, Dental Clinics, Dental Prospects 16, no. 1 (2022): 76–80. http://dx.doi.org/10.34172/joddd.2022.012.

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Zika virus congenital syndrome (ZVCS) is a congenital viral infection resulting from the transmission of the Zika virus (ZV) to the fetus during pregnancy. This report describes a clinical case involving a 20-month-old female child with ZVCS, who presented with systemic changes related to the syndrome, such as microcephaly, arthrogryposis, ocular and auditory changes, and oral changes such as delayed dental eruption, ogival (high-arched) palate, short lip frenum, and altered morphology of a superior primary incisor. For esthetic and functional rehabilitation of the oral health of this child, a

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5

Liu, Wan-rong. "Experimental and Numerical Study of Rock Stratum Movement Characteristics in Longwall Mining." Shock and Vibration 2019 (March 26, 2019): 1–15. http://dx.doi.org/10.1155/2019/5041536.

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The roof fracture is the main cause of coal mine roof accidents. To analyze the law of movement and caving of the roof rock stratum, the roof subsidence displacement, rock stratum stress, and the rock stratum movement law were analyzed by using the methods of the particle discrete element and similar material simulation test. The results show that (1) as the working face advances, regular movement and subsidence appears in the roof rock strata, and the roof subsidence curve forms a typical “U” shape. As the coal seam continues to advance, the maximum subsidence displacement remains basically c

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6

Eswaramoorthy, Malarmathi, and Murali Gopika Manoharan. "Cornelia De Lange Syndrome – Case Report." IOSR Journal of Dental and Medical Sciences 23, no. 12 (2024): 35–37. https://doi.org/10.9790/0853-2312053537.

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Cornelia de Lange syndrome (CdLS) is a complex genetic disorder characterized by distinctive facial features, delayed growth, and limb abnormalities. In 1916, Dr. W. Brachmann described the first case of this syndrome but in 1933 Cornelia de Lange, a Dutch pediatrician from Amsterdam was the first to report about two cases of this syndrome. It is also called Brachmann de Lange syndrome, Amsterdam dwarfism, Bushy syndrome. Craniofacial features commonly associated with CdLS include synophrys (joined eyebrows), arched eyebrows, long eyelashes, and microcephaly. The exact incidence is uncertain,

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Chen, Liu, Liang, Zhao, and Tang. "Study on Surface Charge Accumulation Characteristics of Resin Impregnated Paper Wall Bushing Core Under Positive DC Voltage." Energies 12, no. 23 (2019): 4420. http://dx.doi.org/10.3390/en12234420.

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As a critical component of a high-voltage direct current (HVDC) transmission system, resin impregnated paper (RIP) wall bushing has become a weak point because of its surface charge accumulation. This paper studies a model RIP wall bushing core designed by the equal capacitance method. The stationary resistive field along the gas–solid interface of the RIP wall bushing core is investigated theoretically by a gas model, which considers the non-linearly field-dependent volume conductivity. The results show that the gas conductivity along the core surface tends to be an arched distribution from t

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8

Li, Muyuan, Yao Yao, Ian Simmonds, Dehai Luo, Linhao Zhong, and Lin Pei. "Linkages between the atmospheric transmission originating from the North Atlantic Oscillation and persistent winter haze over Beijing." Atmospheric Chemistry and Physics 21, no. 24 (2021): 18573–88. http://dx.doi.org/10.5194/acp-21-18573-2021.

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Abstract. In this study, the persistent winter haze that occurred over Beijing during 1980 to 2016 is examined using reanalysis and station data. On both interannual and daily-to-weekly timescales, the winter haze weather in Beijing is found to be associated with a pronounced atmospheric teleconnection pattern from the North Atlantic to Eurasia (Beijing). A positive western-type North Atlantic Oscillation (WNAO+) phase and a positive East Atlantic/West Russia (EA/WR+) phase are observed as part of this teleconnection pattern (an arched wave train). This study focuses on the role of the WNAO pa

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9

Li, Zi, Wenqi He, Yungang Lan, et al. "The evidence of porcine hemagglutinating encephalomyelitis virus induced nonsuppurative encephalitis as the cause of death in piglets." PeerJ 4 (September 15, 2016): e2443. http://dx.doi.org/10.7717/peerj.2443.

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An acute outbreak of porcine hemagglutinating encephalomyelitis virus (PHEV) infection in piglets, characterized with neurological symptoms, vomiting, diarrhea, and wasting, occurred in China. Coronavirus-like particles were observed in the homogenized tissue suspensions of the brain of dead piglets by electron microscopy, and a wild PHEV strain was isolated, characterized, and designated as PHEV-CC14. Histopathologic examinations of the dead piglets showed characteristics of non-suppurative encephalitis, and some neurons in the cerebral cortex were degenerated and necrotic, and neuronophagia.

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10

Vittori Antisari, Marco, Daniele Mirabile Gattia, L. Brandão, Renzo Marazzi, and Amelia Montone. "Carbon Nanostructures Produced by an AC Arc Discharge." Materials Science Forum 638-642 (January 2010): 1766–71. http://dx.doi.org/10.4028/www.scientific.net/msf.638-642.1766.

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Carbon nanostructures are under deep investigation due their peculiar properties and possible applications. In particular, development of new methods for the synthesis of these materials and their mechanism of formation represent interesting research fields. Arc discharge allows to produce different forms of carbon nanostructures. The parameters involved in the process, voltage, current density, type and pressure of the surrounding gas can be controlled especially for achieving high quantity of material with enhanced characteristics in terms of purity while the use of transition metal-graphite

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11

Shu, Yang, Jie Li, Rukai Liu, and Junnan Guo. "Electronic Properties of Molybdenum Disulfide Rings-Based Chains Associated with Length and Bias." Coatings 15, no. 7 (2025): 827. https://doi.org/10.3390/coatings15070827.

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Molybdenum disulfide is more attractive and valuable at the molecular level due to its unique structure and exceptional properties. Here, new-type MoS2-ring chains are constructed and theoretically investigated for relevant electronic properties influenced by the length of the chain and the bias. Different from traditional wires, our findings demonstrate that the conductance of such a new-type chain presents unusually non-exponential decay with the length of the chain, with a particularly anomalous length of seven rings, which shows stronger equilibrium conductance than a shorter four-ring cha

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12

Villalobos, R., A. P. Villalobos, R. Villalobos, I. A. Villarreal, D. Grimaldo, and J. A. Valencia. "0892 Sleep Abnormalities in Cornelia De Lange Syndrome." Sleep 43, Supplement_1 (2020): A339—A340. http://dx.doi.org/10.1093/sleep/zsaa056.888.

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Abstract Introduction Cornelia de lange is an autosomal dominant disorder (when associated with NIPBL, RAD21, or SMC3 genes) with an incidence of 1:10,000 to 1:50,000 live births, patients affected are known to have a wide variety of sleep disorders, those range from insomnia and abnormal circadian cycle to sleep disordered breathing and hypoventilation. The exact etiology of increased risk of sleep-disordered breathing in patients affected is not fully understood. It is possible that some facial features in these patients expose them to a higher risk (micrognathia, high arched palate, and sho

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13

Zhang, Puyang, Yunlong Xu, Jiandong Xiao, Conghuan Le, and Hongyan Ding. "Mechanical Characteristics of Prestressed Concrete Curved Transition Section of Composite Bucket Foundations for Offshore Wind Turbines." Journal of Marine Science and Engineering 10, no. 4 (2022): 473. http://dx.doi.org/10.3390/jmse10040473.

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The composite bucket foundation (CBF) consists of a concrete curved transition section, a concrete beam-slab system, and a suction caisson and is increasingly used as the foundation for offshore wind turbines. The curved transition section transmits the upper load from the tower to the foundation, and its force and transmission characteristics are related to the safety of the entire wind turbine structure. The arced transition section has the characteristics of complex geometry, load conditions, and large curvature. It is difficult to determine its bearing characteristics and force transmissio

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14

Salas-López, Maricarmen, Juan Manuel Vélez-Ixta, Diana Laura Rojas-Guerrero, et al. "Human Milk Archaea Associated with Neonatal Gut Colonization and Its Co-Occurrence with Bacteria." Microorganisms 13, no. 1 (2025): 85. https://doi.org/10.3390/microorganisms13010085.

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Archaea have been identified as early colonizers of the human intestine, appearing from the first days of life. It is hypothesized that the origin of many of these archaea is through vertical transmission during breastfeeding. In this study, we aimed to characterize the archaeal composition in samples of mother-neonate pairs to observe the potential vertical transmission. We performed a cross-sectional study characterizing the archaeal diversity of 40 human colostrum-neonatal stool samples by next-generation sequencing of V5–V6 16S rDNA libraries. Intra- and inter-sample analyses were carried

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15

Tian, Qingyi, Fangchen Zhao, Han Zeng, Maoyan Zhu, and Baoyu Jiang. "Ultrastructure reveals ancestral vertebrate pharyngeal skeleton in yunnanozoans." Science 377, no. 6602 (2022): 218–22. http://dx.doi.org/10.1126/science.abm2708.

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Pharyngeal arches are a key innovation that likely contributed to the evolution of the jaws and braincase of vertebrates. It has long been hypothesized that the pharyngeal (branchial) arch evolved from an unjointed cartilaginous rod in vertebrate ancestors such as that in the nonvertebrate chordate amphioxus, but whether such ancestral anatomy existed remains unknown. The pharyngeal skeleton of controversial Cambrian animals called yunnanozoans may contain the oldest fossil evidence constraining the early evolution of the arches, yet its correlation with that of vertebrates is still disputed.

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16

Taffner, Julian, Alessandro Bergna, Tomislav Cernava, and Gabriele Berg. "Tomato-Associated Archaea Show a Cultivar-Specific Rhizosphere Effect but an Unspecific Transmission by Seeds." Phytobiomes Journal 4, no. 2 (2020): 133–41. http://dx.doi.org/10.1094/pbiomes-01-20-0017-r.

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Archaea have recently been identified as substantial members of the plant microbiome. As for other microorganisms, the rhizosphere is a favorable habitat for archaea; however, less is known about their community assembly, composition, or origin. Therefore, we analyzed archaeal communities in the rhizosphere of tomato plants (Solanum lycopersicum ‘Moneymaker’ and ‘Hildares F1’) nurtured in two different soil types. In complementary experiments, archaeal communities were assessed in two generations of tomato seeds. The abundance of the archaea was significantly different for each plant genotype

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17

Elizalde, Rubén Rodríguez. "An Analysis of the Planar Vault under the Choir Loft of the Monastery of El Escorial." Buildings 14, no. 4 (2024): 1108. http://dx.doi.org/10.3390/buildings14041108.

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Arches and vaults are typical elements of ancient buildings. They are formed by voussoirs that resist the pressure they receive and transmit them through compression forces. The transmission of these forces justifies their curved shape. For this reason, arches and vaults are omnipresent elements in ancient constructions, all of them masonry structures. However, when visitors enter the Basilica of the Monastery of El Escorial, they find a narthex with a flat or planar vault. This vault is located under the floor of the choir loft. Its geometric characteristics and its shape, with no curvature,

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18

Velilla, Cristina, Alfredo Alcayde, Carlos San-Antonio-Gómez, Francisco G. Montoya, Ignacio Zavala, and Francisco Manzano-Agugliaro. "Rampant Arch and Its Optimum Geometrical Generation." Symmetry 11, no. 5 (2019): 627. http://dx.doi.org/10.3390/sym11050627.

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Gothic art was developed in western Europe from the second half of the 12th century to the end of the 15th century. The most characteristic Gothic building is the cathedral. Gothic architecture uses well-carved stone ashlars, and its essential elements include the arch. The thrust is transferred by means of external arches (flying buttresses) to external buttresses that end in pinnacles, which accentuates the verticality. The evolution of the flying buttresses should not only be considered as an aesthetic consideration, but also from a constructive point of view as an element of transmission o

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19

Steger, Doris, Piers Ettinger-Epstein, Stephen Whalan, et al. "Diversity and mode of transmission of ammonia-oxidizing archaea in marine sponges." Environmental Microbiology 10, no. 4 (2008): 1087–94. http://dx.doi.org/10.1111/j.1462-2920.2007.01515.x.

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20

Gutman, Laura T. "Human Immunodeficiency Virus Transmission by Child Sexual Abuse." Archives of Pediatrics & Adolescent Medicine 145, no. 2 (1991): 137. http://dx.doi.org/10.1001/archpedi.1991.02160020027008.

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21

MONTELEONE, JAMES A. "Child Sexual Abuse and Human Immunodeficiency Virus Transmission." Archives of Pediatrics & Adolescent Medicine 145, no. 8 (1991): 847. http://dx.doi.org/10.1001/archpedi.1991.02160080021008.

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22

Nelson, Kenrad E. "Transmission of Neonatal Listeriosis in a Delivery Room." Archives of Pediatrics & Adolescent Medicine 139, no. 9 (1985): 903. http://dx.doi.org/10.1001/archpedi.1985.02140110057029.

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23

GUTMAN, LAURA T. "Child Sexual Abuse and Human Immunodeficiency Virus Transmission-Reply." Archives of Pediatrics & Adolescent Medicine 145, no. 8 (1991): 847. http://dx.doi.org/10.1001/archpedi.1991.02160080021009.

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24

Niu, Manette T. "Prevention of Perinatal Transmission of the Hepatitis B Virus." American Journal of Diseases of Children 146, no. 7 (1992): 793. http://dx.doi.org/10.1001/archpedi.1992.02160190025012.

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25

OZSOYLU, ŞINASI. "Prevention of Perinatal Transmission of Hepatitis B Virus Infection." Archives of Pediatrics & Adolescent Medicine 147, no. 6 (1993): 610. http://dx.doi.org/10.1001/archpedi.1993.02160300016008.

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26

Turunen, Timo, and Raimo Silvennoinen. "Annual variety of spectral transmission of light in the oligotrophic Lake Höytiäinen, Eastern Finland." Archiv für Hydrobiologie 127, no. 4 (1993): 497–504. http://dx.doi.org/10.1127/archiv-hydrobiol/127/1993/497.

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27

He, Christine, Ray Keren, Michael L. Whittaker, et al. "Genome-resolved metagenomics reveals site-specific diversity of episymbiotic CPR bacteria and DPANN archaea in groundwater ecosystems." Nature Microbiology 6, no. 3 (2021): 354–65. http://dx.doi.org/10.1038/s41564-020-00840-5.

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AbstractCandidate phyla radiation (CPR) bacteria and DPANN archaea are unisolated, small-celled symbionts that are often detected in groundwater. The effects of groundwater geochemistry on the abundance, distribution, taxonomic diversity and host association of CPR bacteria and DPANN archaea has not been studied. Here, we performed genome-resolved metagenomic analysis of one agricultural and seven pristine groundwater microbial communities and recovered 746 CPR and DPANN genomes in total. The pristine sites, which serve as local sources of drinking water, contained up to 31% CPR bacteria and 4

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28

Johnson, John P. "Vertical Transmission of Human Immunodeficiency Virus From Seronegative or Indeterminate Mothers." Archives of Pediatrics & Adolescent Medicine 145, no. 11 (1991): 1239. http://dx.doi.org/10.1001/archpedi.1991.02160110031014.

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29

Pegues, David A. "Possible Nosocomial Transmission of Pseudomonas cepacia in Patients With Cystic Fibrosis." Archives of Pediatrics & Adolescent Medicine 148, no. 8 (1994): 805. http://dx.doi.org/10.1001/archpedi.1994.02170080035006.

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30

Wolf, Leslie E., Bernard Lo, Karen P. Beckerman, Alejandro Dorenbaum, Sarah J. Kilpatrick, and Peggy S. Weintrub. "When Parents Reject Interventions to Reduce Postnatal Human Immunodeficiency Virus Transmission." Archives of Pediatrics & Adolescent Medicine 155, no. 8 (2001): 927. http://dx.doi.org/10.1001/archpedi.155.8.927.

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31

Dey, Sudip, Utpal Rajguru, Dinesh Chandra Pathak, and Umesh C. Goswami. "Analysis of Gill Structure from a Fresh Water Fish (Heteropneustes fossilis) Exposed to Bleached Sulfite Pulp Mill Effluents." Microscopy and Microanalysis 21, no. 2 (2015): 385–91. http://dx.doi.org/10.1017/s1431927615000045.

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AbstractThe present communication reports toxic effects of bleached sulfite pulp mill effluents in fish (Heteropneustes fossilis) gills, with optical, scanning electron, and transmission electron microscopy. The general adverse effects include dilation of the primary lamellar wall, curling of secondary lamellar terminals, displacement of epithelial cell layers, degeneration of secondary lamella, deposition of mucous, and severe congestion in the gill arch. The significant shortening of secondary lamellae, widening of lamellar tips, and significant decrease in the number of mitochondria in chlo

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32

Stadtlander, C. T. K. H., and H. Kirchhoff. "Attachment of Mycoplasma mobile 163 K to piscine gill arches and rakers-light scanning and transmission electron microscopic findings." British Veterinary Journal 151, no. 1 (1995): 89–100. http://dx.doi.org/10.1016/s0007-1935(05)80068-5.

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33

Long, Xi, Hong Xue, and J. Tze-Fei Wong. "Descent of Bacteria and Eukarya From an Archaeal Root of Life." Evolutionary Bioinformatics 16 (January 2020): 117693432090826. http://dx.doi.org/10.1177/1176934320908267.

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The 3 biological domains delineated based on small subunit ribosomal RNAs (SSU rRNAs) are confronted by uncertainties regarding the relationship between Archaea and Bacteria, and the origin of Eukarya. The similarities between the paralogous valyl-tRNA and isoleucyl-tRNA synthetases in 5398 species estimated by BLASTP, which decreased from Archaea to Bacteria and further to Eukarya, were consistent with vertical gene transmission from an archaeal root of life close to Methanopyrus kandleri through a Primitive Archaea Cluster to an Ancestral Bacteria Cluster, and to Eukarya. The predominant sim

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34

Brunell, Philip A. "Transmission of Chickenpox in a School Setting Prior to the Observed Exanthem." Archives of Pediatrics & Adolescent Medicine 143, no. 12 (1989): 1451. http://dx.doi.org/10.1001/archpedi.1989.02150240073020.

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35

West, David W. "Pediatric Medication Order Error Rates Related to the Mode of Order Transmission." Archives of Pediatrics & Adolescent Medicine 148, no. 12 (1994): 1322. http://dx.doi.org/10.1001/archpedi.1994.02170120084016.

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36

Yusuf, Hussain R. "Hospital-Based Evaluation of Programs to Prevent Perinatal Hepatitis B Virus Transmission." Archives of Pediatrics & Adolescent Medicine 150, no. 6 (1996): 593. http://dx.doi.org/10.1001/archpedi.1996.02170310027005.

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37

Bang, C., A. Schilhabel, K. Weidenbach, et al. "Effects of Antimicrobial Peptides on Methanogenic Archaea." Antimicrobial Agents and Chemotherapy 56, no. 8 (2012): 4123–30. http://dx.doi.org/10.1128/aac.00661-12.

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ABSTRACTAs members of the indigenous human microbiota found on several mucosal tissues,Methanobrevibacter smithiiandMethanosphaera stadtmanaeare exposed to the effects of antimicrobial peptides (AMPs) secreted by these epithelia. Although antimicrobial and molecular effects of AMPs on bacteria are well described, data for archaea are not available yet. Besides, it is not clear whether AMPs affect them as the archaeal cell envelope differs profoundly in terms of chemical composition and structure from that of bacteria. The effects of different synthetic AMPs on growth ofM. smithii,M. stadtmanae

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38

KULKARNI, M. L. "Prevalence of HBsAg in Asymptomatic Carrier Mothers and Vertical Transmission in South India." Archives of Pediatrics & Adolescent Medicine 142, no. 2 (1988): 124. http://dx.doi.org/10.1001/archpedi.1988.02150020018011.

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39

Sprauer, Mary Ann. "Prevention of Secondary Transmission of Pertussis in Households With Early Use of Erythromycin." Archives of Pediatrics & Adolescent Medicine 146, no. 2 (1992): 177. http://dx.doi.org/10.1001/archpedi.1992.02160140043018.

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Strilets, О. R., V. M. Strilets, and A. A. Stepaniuk. "TENSION AND DEFORMATIONS OF STAR-SHAPED SPRING VERTICES WITH STRANGULATED ENDS OF THE FLEXIBLE COUPLING." ACADEMIC JOURNAL Series: Industrial Machine Building, Civil Engineering 1, no. 48 (2017): 26–33. http://dx.doi.org/10.26906/znp.2017.48.767.

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The article examines the structure of overload flexible coupling that contains internal and external hubs, connected by a star-shaped spring with the circular vertices inserted in grooves on the outer surface of internal hub and inner surface of the external hub. Position of the star-shaped spring is fixed on the inner hub by the wedge, which allows the spring to be made either solid or of separate circular vertices with strangulated ends. Geometric synthesis of star-shaped spring with vertices of circular shape, depending on its size was conducted. It is assumed that star spring vertices are

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41

Sharp, Koty H., Boreth Eam, D. John Faulkner, and Margo G. Haygood. "Vertical Transmission of Diverse Microbes in the Tropical Sponge Corticium sp." Applied and Environmental Microbiology 73, no. 2 (2006): 622–29. http://dx.doi.org/10.1128/aem.01493-06.

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ABSTRACT Sponges are host to extremely diverse bacterial communities, some of which appear to be spatiotemporally stable, though how these consistent associations are assembled and maintained from one sponge generation to the next is not well understood. Here we report that a diverse group of microbes, including both bacteria and archaea, is consistently present in aggregates within embryos of the tropical sponge Corticium sp. The major taxonomic groups represented in bacterial 16S rRNA sequences amplified from the embryos are similar to those previously described in a variety of marine sponge

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Khalid Nghaimesh, Abeer, and Ali Khalid Jassim. "TRIPLE-BAND CIRCULAR PATCH MICROSTRIP ANTENNA FOR WIRELESS COMMUNICATION." Journal of Engineering and Sustainable Development 28, no. 1 (2024): 64–74. http://dx.doi.org/10.31272/jeasd.28.1.5.

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In this article, a triple-band patch antenna using a circular patch microstrip antenna is constructed with a low-profile patch antenna using a 1.5 mm thick FR4 substrate (εr= 4.3). As mobile devices like smartphones and laptops become more common, the usage of tiny, triple-band antennas has also become more common. The objective of this research is to design a circular patch antenna with a 3–11 GHz dipole-like radiation pattern, which may be used for industrial, scientific, and medical reasons. For the suggested triple-band antenna design, the slotted radiator with six arches and the reduction

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43

Jordan, Sean F., Eloise Nee, and Nick Lane. "Isoprenoids enhance the stability of fatty acid membranes at the emergence of life potentially leading to an early lipid divide." Interface Focus 9, no. 6 (2019): 20190067. http://dx.doi.org/10.1098/rsfs.2019.0067.

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Two key problems concern cell membranes during the emergence and early evolution of life: what was their initial composition, and why did the membranes of archaea and bacteria diverge? The composition of the first cell membranes could shed light on the most likely environment for the emergence of life. The opposing stereochemistry of modern lipid glycerol-phosphate headgroups in bacteria and archaea suggests that early membranes were composed of single chain amphiphiles, perhaps both fatty acids and isoprenoids. We investigated the effect of adding isoprenoids to fatty acid membranes using a c

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Şahin, Fatma Neşe, Levent Ceylan, Hamza Küçük, et al. "Examining the Relationship between Pes Planus Degree, Balance and Jump Performances in Athletes." International Journal of Environmental Research and Public Health 19, no. 18 (2022): 11602. http://dx.doi.org/10.3390/ijerph191811602.

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The foot absorbs shocks with its arches, muscles, ligaments and joints, and bodyweight transmission and it pushes the body forward during all movement patterns. Pes planus is more important in sports activities that include balance and sports performance, such as walking, running, jumping, or transferring weight to a single lower limb. This study, conducted with this information in mind, aims to examine the effects of pes planus deformity on balance and vertical jump performance. Fifty athletes were included in the study. The presence of pes planus was evaluated according to the Feiss line. Ba

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Pfeifer, Kevin, Eva-Kathrin Ehmoser, Simon K. M. R. Rittmann, et al. "Isolation and Characterization of Cell Envelope Fragments Comprising Archaeal S-Layer Proteins." Nanomaterials 12, no. 14 (2022): 2502. http://dx.doi.org/10.3390/nano12142502.

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The outermost component of cell envelopes of most bacteria and almost all archaea comprise a protein lattice, which is termed Surface (S-)layer. The S-layer lattice constitutes a highly porous structure with regularly arranged pores in the nm-range. Some archaea thrive in extreme milieus, thus producing highly stable S-layer protein lattices that aid in protecting the organisms. In the present study, fragments of the cell envelope from the hyperthermophilic acidophilic archaeon Saccharolobus solfataricus P2 (SSO) have been isolated by two different methods and characterized. The organization o

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Schmitt, Susanne, Hilde Angermeier, Roswitha Schiller, Niels Lindquist, and Ute Hentschel. "Molecular Microbial Diversity Survey of Sponge Reproductive Stages and Mechanistic Insights into Vertical Transmission of Microbial Symbionts." Applied and Environmental Microbiology 74, no. 24 (2008): 7694–708. http://dx.doi.org/10.1128/aem.00878-08.

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ABSTRACT Many marine sponges, hereafter termed high-microbial-abundance (HMA) sponges, harbor large and complex microbial consortia, including bacteria and archaea, within their mesohyl matrices. To investigate vertical microbial transmission as a strategy to maintain these complex associations, an extensive phylogenetic analysis was carried out with the 16S rRNA gene sequences of reproductive (n = 136) and adult (n = 88) material from five different Caribbean species, as well as all published 16S rRNA gene sequences from sponge offspring (n = 116). The overall microbial diversity, including m

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Himmler, Tobias, Antoine Crémière, Daniel Birgel, et al. "Putative fossils of chemotrophic microbes preserved in seep carbonates from Vestnesa Ridge, off northwest Svalbard, Norway." Geology 50, no. 2 (2021): 169–73. http://dx.doi.org/10.1130/g49620.1.

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ABSTRACT The microbial key players at methane seeps are methanotrophic archaea and sulfate-reducing bacteria. They form spherical aggregates and jointly mediate the sulfate-dependent anaerobic oxidation of methane (SD–AOM: CH4 + SO42− → HCO3− + HS− + H2O), thereby inducing the precipitation of authigenic seep carbonates. While seep carbonates constitute valuable archives for molecular fossils of SD–AOM-mediating microbes, no microfossils have been identified as AOM aggregates to date. We report clustered spherical microstructures engulfed in 13C-depleted aragonite cement (δ13C values as low as

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Alvarez-Lloret, P., A. B. Rodriguez-Navarro, and A. G. Checa. "Evolution of the microstructure and crystallographic orientation during shell growth in Psilunio littoralis and Nautilus belauensis." Mineralogical Magazine 72, no. 1 (2008): 163–67. http://dx.doi.org/10.1180/minmag.2008.072.1.163.

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AbstractThin sections of shells from different species of mollusc have been analysed by X-ray synchrotron diffraction using the BM16 at the European Synchrotron Radiation Facility (ESRF), Grenoble, France. A sequence of 2-D X-ray diffraction patterns were acquired in transmission mode at regular intervals across the shell thickness. From the 2D patterns, 2θ- and χ-scans were calculatedan d analysed. We studied the evolution of the shell microstructures by analysing several parameters from calculated scans: (1) the intensity of the most intense aragonite reflections in the calculated 2θ scans;

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Quinzi, Vincenzo, Simone Ettore Salvati, Valeria Brutto, Giorgia Tasciotti, Giuseppe Marzo, and Gianmaria Fabrizio Ferrazzano. "Comparison of the Accuracy of Two Transfer Caps in Positional Transmission of Palatal Temporary Anchorage Devices: An In Vitro Study." Dentistry Journal 11, no. 2 (2023): 51. http://dx.doi.org/10.3390/dj11020051.

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The aim of this study was to compare the positional information transfer accuracy of palatal temporary anchorage devices (TADs) of two different brands of transfer caps: PSM and Leone. Thirty plaster casts of maxillary dental arches were chosen for master models. A couple of Leone TADs were inserted in each master model. For each master model, two analysis models were created: using two transfer caps, Leone and PSM, the impressions were taken, the analogues were connected on the transfer caps, and the casts were poured. Using digital methods and equipment, such as a 3D scanner, a 3D analysis a

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Barzel, Adi, Adit Naor, Eyal Privman, Martin Kupiec, and Uri Gophna. "Homing endonucleases residing within inteins: evolutionary puzzles awaiting genetic solutions." Biochemical Society Transactions 39, no. 1 (2011): 169–73. http://dx.doi.org/10.1042/bst0390169.

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Inteins are selfish genetic elements that disrupt the sequence of protein-coding genes and are excised post-translationally. Most inteins also contain a HEN (homing endonuclease) domain, which is important for their horizontal transmission. The present review focuses on the evolution of inteins and their nested HENs, and highlights several unsolved questions that could benefit from molecular genetic approaches. Such approaches can be well carried out in halophilic archaea, which are naturally intein-rich and have highly developed genetic tools for their study. In particular, the fitness effect

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