SARS-CoV-2 Delta Variant: Interplay between Individual Mutations and Their Allosteric Synergy by Kevin C. Chan, Yi Song, Zheng Xu, Chun Shang, Ruhong Zhou

“…Since its first appearance in April 2021, B.1.617.2, also termed variant Delta, catalyzed one major worldwide wave dominating the second year of coronavirus disease 2019 (COVID-19) pandemic. …”
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The timing of the initial collision between the South and North China blocks constraining from the sediments in the eastern Sichuan Basin by Tianjia Liu, Zongquan Hu, Dianwei Zhang, Shuangjian Li, Chuanjie Cheng, Lingfang Zhou, Guanping Wang, Xunlian Wang, Zhentao Wang

“…Detrital zircons from the Early Triassic Jialingjiang Formation clastic rocks yield multiple age peaks at 979, 856, 392 and 269 Ma, indicating a mixed sediment provenance from the South China Block and Qinling Orogenic Belt. This is the first appearance of the detritus with the Qinling Orogenic Belt affinity in the eastern Sichuan Basin. …”
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Incobotulinumtoxin A and Yoga-like Isometric Exercise in Adolescent Idiopathic Lumbar Scoliosis—A Randomized Pilot Study by Loren Fishman

“…Background: Approximately 90% of scoliosis cases are adolescent-idiopathic (AIS). From the first appearance of scoliosis at 10–14 years of age until the age of 18, the spine is most vulnerable to deterioration; young, growing people are most susceptible to the worsening of one or more scoliotic curves. …”
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Central nervous system autoimmune diseases associated with COVID-19: Comprehensive review by Fardin Nabizadeh, Kasra Pirahesh, Fatemeh Sodeifian, Seyedeh Melika Hashemi, Mohammad Balabandian, Nasim Rezaeimanesh, Abdorreza Naser Moghadasi

“…The first appearance of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) named coronavirus disease 2019 (COVID-19) was reported from Wuhan in December 2019. …”
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Law Is Code: A Software Engineering Approach to Analyzing the United States Code by Li, William P., Azar, Pablo Daniel, Larochelle, David, Hill, Phil, Lo, Andrew W.

“…For example, we identify the first appearance and spread of important terms in the U.S. …”
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The experience of body image concerns in patients with persecutory delusions: 'People don't want to sit next to me' by Marshall, E, Freeman, D, Waite, F

“…</p> <p><strong>Results</strong> Four super-ordinate themes emerged. First, appearance as a source of threat accounted for how negative body image increased feelings of vulnerability and fed into the content of paranoia and voices (e.g., ‘I feel that everybody is noticing that I'm getting bigger and bigger and laughing at me’). …”

Bounds for the normal approximation of the maximum likelihood estimator by Anastasiou, A

“…For this task we partly use Stein's method, which is a probabilistic technique that can be used to explicitly measure the distributional distance between two distributions. Since its first appearance in 1972, the method has been developed for various distributions; here we use the results related to Stein's method for normal approximation.…”

Cultivation of Cryopreserved Human Dental Pulp Stem Cells—A New Approach to Maintaining Dental Pulp Tissue by Wang Wang, Ming Yan, Ghazal Aarabi, Ulrike Peters, Marcus Freytag, Martin Gosau, Ralf Smeets, Thomas Beikler

“…The data of the present study indicated that the new cryopreservation approach did not reduce the capabilities or stemness of hDPSCs, with the exception that it extended the first appearance time of hDPSCs in the teeth that were cryopreserved in 10% DMSO, and reduced their recovery rate. …”
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Association between Genetic Polymorphism of The lncRNA MIAT rs1894720 with Ischemic Stroke Risk and lncRNA MIAT Expression Levels in The Blood after An Ischemic Stroke: A Case-Cont... by Tahereh Asadabadi, Mohammad Javad Mokhtari, Mahnaz Bayat, Anahid Safari, Afshin Borhani-Haghighi

“…We enrolled 80, 78, and 74 patientswho arrived at the hospital between 0-24, 24-48, and 48-72 hours after the first appearance of symptoms, respectively.DNA genotyping was done by the tetra-primer ARMS-PCR method. …”
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Fibrous or Prismatic? A Comparison of the Lamello-Fibrillar Nacre in Early Cambrian and Modern Lophotrochozoans by Luoyang Li, Marissa J. Betts, Hao Yun, Bing Pan, Timothy P. Topper, Guoxiang Li, Xingliang Zhang, Christian B. Skovsted

“…The Precambrian–Cambrian interval saw the first appearance of disparate modern metazoan phyla equipped with a wide array of mineralized exo- and endo-skeletons. …”
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Rapid RT-PCR identification of SARS-CoV-2 in screening donors of fecal microbiota transplantation by Sara Scaglione, Franca Gotta, Daria Vay, Christian Leli, Annalisa Roveta, Antonio Maconi, Andrea Rocchetti

“…Since its first appearance in late 2019 in Wuhan, China, severe acute respiratory syndrome caused by Coronavirus 2 (SARS-CoV-2) has had a major impact on healthcare facilities around the world. …”
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Echinoderm Lagerstätten from high-latitude Gondwana – filling the gap in the Ordovician diversification of the phylum by Martina Nohejlová, Christophe Dupichaud, Bertrand Lefebvre, Elise Nardin, Farid Saleh

“…The phylum Echinodermata is a major component of marine ecosystems since the first appearance of echinoderms in the Cambrian. Like other metazoan phyla, echinoderms underwent two major evolutionary pulses in early Palaeozoic times: the Cambrian Explosion and the Ordovician Radiation. …”
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Alzheimer’s disease is an inherent, natural part of human brain aging: an integrated perspective by Isidro Ferrer

“…This is not a trivial question, as the neuropathological and molecular characteristics of normal brain aging and the first appearance of early stages of sAD-related pathology are not easily distinguishable in most individuals. …”
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Elucidating Events within the Black Box of Enzyme Catalysis in Energy Metabolism: Insights into the Molecular Mechanism of ATP Hydrolysis by F₁-ATPase by Sunil Nath

“…The trisite catalysis formulated by Nath’s torsional mechanism of energy transduction and ATP synthesis/hydrolysis since its first appearance 25 years ago is shown to be in better accord with the experimental record. …”
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Penyajian Musik Goa Tabuhan di Pacitan Jawa Timur by Harpang Yudha Karyawanto, Moh. Sarjoko

“…Goa Tabuhan music in Wareng Village, Punung District, Pacitan Regency, East Java, is a unique musical phenomenon, so that its sustainability needs to be preserved. Since the first appearance of the Goa Tabuhan music tradition community until now, percussion music activity with rocks on the cave wall as its media has become a performance art that is accepted as part of the social life of the community in Pacitan. …”
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Rise and Fall of SARS-CoV-2 Lineage A.27 in Germany by Sébastien Calvignac-Spencer, Matthias Budt, Matthew Huska, Hugues Richard, Luca Leipold, Linus Grabenhenrich, Torsten Semmler, Max von Kleist, Stefan Kröger, Thorsten Wolff, Martin Hölzer

“…Baden-Wuerttemberg is located near the border with France, from where most A.27 sequences were entered into public databases until May 2021. The first appearance of this lineage based on sequencing in a laboratory in Baden-Wuerttemberg can be dated to early January ’21. …”
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Provenance Shifts During Neogene Brahmaputra Delta Progradation Tied to Coupled Climate and Tectonic Change in the Eastern Himalaya by Paul M. Betka, Stuart N. Thomson, Ryan Sincavage, C. Zoramthara, C. Lalremruatfela, Karl A. Lang, Michael S. Steckler, Devojit Bezbaruah, Pradip Borgohain, Leonardo Seeber

“…An influx of trans‐Himalayan sediment and the first appearance of ∼50 Ma grains of the Gangdese batholith in the lower Surma Group (∼18–15 Ma) records the early Miocene arrival of the ancestral Brahmaputra delta to the Bengal Basin. …”
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明代杂剧中的僧尼形象研究 = The protrayal of monk and nun in traditional Ming opera (Zaju) by 尹倩怡 Yin, Qian Yi

“…There has been a very long period since the first appearance of Buddhist monk and nun images in traditional Chinese literature. …”
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Recombinant interferon beta or glatiramer acetate for delaying conversion of the first demyelinating event to multiple sclerosis. by Clerico, M, Faggiano, F, Palace, J, Rice, G, Tintorè, M, Durelli, L

“…It has been hypothesized that their efficacy could be higher if used at the first appearance of symptoms, that is in the clinically isolated syndromes (CIS) suggestive of demyelinating events, a pathology which carries a high risk to convert to clinically definite MS (CDMS). …”

Blood pressure does not rise before the onset of microalbuminuria in children followed from diagnosis of type 1 diabetes. Oxford Regional Prospective Study Group. by Schultz, C, Neil, H, Dalton, R, Konopelska Bahu, T, Dunger, D

“…CONCLUSIONS: A rise in systemic BP cannot be detected before the first appearance of MA in children with type 1 diabetes. …”