keyword
https://read.qxmd.com/read/38636113/intersegmental-coordination-in-human-slip-perturbation-responses
#1
JOURNAL ARTICLE
Vaibhavsingh Varma, Mitja Trkov
Intersegmental coordination (ISC) of lower limbs and planar covariation law (PCL) are important phenomena observed in biomechanics of human walking and other activities. Gait perturbations tend to cause deviation from the expected ISC pattern thus violating PCL. We used a data set of seven subjects, who experienced unexpected slips, to investigate and characterize the evolution of ISC during slip recoveries and falls. We have analyzed and presented the development of ISC patterns, encompassing the step preceding the slip initiation and duration of slip until it stops...
April 16, 2024: Journal of Biomechanics
https://read.qxmd.com/read/38636106/self-catalyzed-hydrolysis-of-nitrile-containing-raft-chain-transfer-agent-and-its-impact-upon-polymerization-control-of-methacrylic-monomers
#2
JOURNAL ARTICLE
Åsa Jerlhagen, Olivia Wilson, Eva Malmström
Self-catalyzed hydrolysis upon storage of the common RAFT chain-transfer agent (CTA) 4-cyano-4-[(thiothiopropyl)sulfanyl] pentanoic acid (CTPPA) is confirmed, where the nitrile group is transformed into an amide by catalysis from the adjacent carboxylic acid moiety. The amide-CTA (APP) is found to poorly control molecular weight evolution during polymerization of two methacrylates, methyl methacrylate (MMA) and N , N -(dimethylamino)ethyl methacrylate (DMAEMA), likely due to poor reinitiation speed in the pre-equilibrium...
April 18, 2024: ACS Macro Letters
https://read.qxmd.com/read/38636103/facet-dependent-oxygen-evolution-reaction-activity-of-iro-2-from-quantum-mechanics-and-experiments
#3
JOURNAL ARTICLE
Soonho Kwon, Kelsey A Stoerzinger, Reshma Rao, Liang Qiao, William A Goddard, Yang Shao-Horn
The diversity of chemical environments present on unique crystallographic facets can drive dramatic differences in catalytic activity and the reaction mechanism. By coupling experimental investigations of five different IrO2 facets and theory, we characterize the detailed elemental steps of the surface redox processes and the rate-limiting processes for the oxygen evolution reaction (OER). The predicted complex evolution of surface adsorbates and the associated charge transfer as a function of applied potential matches well with the distinct redox features observed experimentally for the five facets...
April 18, 2024: Journal of the American Chemical Society
https://read.qxmd.com/read/38636102/substrate-free-transfer-of-silicon-and-metallic-based-strain-sensors-on-textile-and-in-composite-material-for-structural-health-monitoring
#4
JOURNAL ARTICLE
Gaëtan Herry, Jean-Charles Fustec, France Le Bihan, Maxime Harnois
New technologies to integrate electronics and sensors on or into objects can support the growth of embedded electronics. The method proposed in this paper has the huge advantage of being substrate-free and applicable to a wide range of target materials such as fiber-based composites, widely used in manufacturing, and for which monitoring applications such as fatigue, cracks, and deformation detection are crucial. Here, sensors are first fabricated on a donor substrate using standard microelectronic processes and then transferred to the host material by direct transfer printing...
April 18, 2024: ACS Applied Materials & Interfaces
https://read.qxmd.com/read/38636083/number-of-healthy-teeth-can-predict-the-response-of-rectal-cancer-to-chemoradiotherapy-a-retrospective-study
#5
JOURNAL ARTICLE
Toshihiro Nakao, Mitsuo Shimada, Kozo Yoshikawa, Takuya Tokunaga, Masaaki Nishi, Hideya Kashihara, Chie Takasu, Yuma Wada, Toshiaki Yoshimoto
BACKGROUND: It has been reported that the oral and gut microbiomes are associated with the prognosis in patients who undergo surgery, chemotherapy, and radiation for colorectal cancer. This study is the first to identify a correlation between the number of healthy teeth, which is an oral health indicator, and the efficacy of preoperative chemotherapy for rectal cancer. METHODS: This retrospective single-center study included 30 patients who underwent radical surgery after preoperative chemoradiotherapy (CRT) between December 2013 and June 2021...
April 18, 2024: American Surgeon
https://read.qxmd.com/read/38636079/local-confinement-effects-of-block-copolymers-driving-self-assembly-of-nanoparticles-into-discrete-pancake-shaped-superlattices
#6
JOURNAL ARTICLE
Yutong Hong, Mengqi Lyu, Ming Jiang, Yanyan Chen, Jiajun Zhao, Haipeng Zhu, Yan Xia
The utilization of polymer conformations to construct a variety of superlattices is a common method within the field. However, this technique often results in only long-range ordering rather than the formation of distinct superlattices. In our study, we successfully obtained a well-organized array of discrete pancake-shaped superlattices (DPSs) through the utilization of air-liquid interface self-assembly, facilitated by the confined environment created by a block copolymer. It is crucial to note that both the self-assembly behavior and resulting morphologies of the DPSs can be precisely tuned by adjusting several experimental parameters, most notably the concentration and molecular architecture of the block copolymers...
April 18, 2024: Macromolecular Rapid Communications
https://read.qxmd.com/read/38635978/time-varying-network-models-for-the-temporal-dynamics-of-depressive-symptomatology-in-patients-with-depressive-disorders-secondary-analysis-of-longitudinal-observational-data
#7
JOURNAL ARTICLE
Björn Sebastian Siepe, Christian Sander, Martin Schultze, Andreas Kliem, Sascha Ludwig, Ulrich Hegerl, Hanna Reich
BACKGROUND: As depression is highly heterogenous, an increasing number of studies investigate person-specific associations of depressive symptoms in longitudinal data. However, most studies in this area of research conceptualize symptom interrelations to be static and time invariant, which may lead to important temporal features of the disorder being missed. OBJECTIVE: To reveal the dynamic nature of depression, we aimed to use a recently developed technique to investigate whether and how associations among depressive symptoms change over time...
April 18, 2024: JMIR Mental Health
https://read.qxmd.com/read/38635972/dft-study-of-functional-reduction-of-co-2-with-bh-3-nme-3-the-real-role-of-organic-catalyst-tbd
#8
JOURNAL ARTICLE
Zhaowei Li, Jianing Zhao, Yongjian Wang, Ao Yu
The detailed mechanism of transition metal-free-catalyzed monomethylation of 2-naphthyl acetonitrile ( 1a ) with CO2 in the presence of triazabicyclodecene (TBD) and BH3 NMe3 was investigated using density functional theory. The C-methylation process proved to generate formaldehyde followed by the formation of the product via an alcohol rather than a methoxyborane intermediate. During the reaction, CO2 is activated to form the TBD-CO 2 adduct and BH3 NMe3 is changed into TBD-BH 2 ( IM2 ) in the presence of TBD...
April 18, 2024: Journal of Organic Chemistry
https://read.qxmd.com/read/38635970/genomic-diversity-and-demographic-history-of-the-endangered-sichuan-hill-partridge-arborophila-rufipectus
#9
JOURNAL ARTICLE
Yi Liu, Weimin Kuang, Bisong Yue, Chuang Zhou
Species conservation can be improved by knowledge of genetic diversity and demographic history. The Sichuan hill-partridge (Arborophila rufipectus, SP) is an endangered species endemic to the mountains in southwestern China. However, little is known about this species' genomic variation and demographic history. Here, we present a comprehensive whole-genome analysis of six SP individuals from the Laojunshan National Nature Reserve in Sichuan Province, China. We observe a relatively high genetic diversity and low level of recent inbreeding in the studied SP individuals...
April 18, 2024: Journal of Heredity
https://read.qxmd.com/read/38635967/solution-processing-of-spinel-nickel-cobaltite-exfoliation-mechanism-dispersion-stability-and-applications
#10
JOURNAL ARTICLE
Ramesh Chandra Sahoo, Priyabrata Sahoo, Manish Kumar Mohanta, Puru Jena, H S S Ramakrishna Matte
The exfoliation of nonlayered materials to mono- or few-layers is of growing interest to realize their full potential for various applications. Nickel cobaltite (NiCo2 O4 ), which has a spinel crystal structure, is one such nonlayered material with unique properties and has been utilized in a wide range of applications. Herein, NiCo2 O4 is synthesized from NiCo2 - Layered double hydroxides using a topochemical conversion technique. Subsequently, bulk NiCo2 O4 is exfoliated into mono- or few-layer nickel cobaltene nanosheets using liquid-phase exfoliation in various low-boiling point solvents...
April 18, 2024: Inorganic Chemistry
https://read.qxmd.com/read/38635942/remodeling-the-homologous-recombination-mechanism-of-yarrowia-lipolytica-for-high-level-biosynthesis-of-squalene
#11
JOURNAL ARTICLE
Man Xu, Nan Yang, Jiang Pan, Qiang Hua, Chun-Xiu Li, Jian-He Xu
Squalene is a high-value antioxidant with many commercial applications. The use of microbial cell factories to produce squalene as an alternative to plant and animal extracts could meet increasing market demand. Yarrowia lipolytica is an excellent host for squalene production due to its high levels of acetyl-CoA and a hydrophobic environment. However, the need for precise and complicated gene editing has hindered the industrialization of this strain. Herein, the rapid construction of a strain with high squalene production was achieved by enhancing the homologous recombination efficiency in Y...
April 18, 2024: Journal of Agricultural and Food Chemistry
https://read.qxmd.com/read/38635936/methodology-for-using-real-world-data-from-electronic-health-records-to-assess-chemotherapy-administration-in-women-with-breast-cancer
#12
JOURNAL ARTICLE
Jenna Bhimani, Kelli O'Connell, Isaac J Ergas, Marilyn Foley, Grace B Gallagher, Jennifer J Griggs, Narre Heon, Tatjana Kolevska, Yuriy Kotsurovskyy, Candyce H Kroenke, Cecile A Laurent, Raymond Liu, Kanichi G Nakata, Sonia Persaud, Donna R Rivera, Janise M Roh, Sara Tabatabai, Emily Valice, Erin J A Bowles, Elisa V Bandera, Lawrence H Kushi, Elizabeth D Kantor
PURPOSE: Identification of patients' intended chemotherapy regimens is critical to most research questions conducted in the real-world setting of cancer care. Yet, these data are not routinely available in electronic health records (EHRs) at the specificity required to address these questions. We developed a methodology to identify patients' intended regimens from EHR data in the Optimal Breast Cancer Chemotherapy Dosing (OBCD) study. METHODS: In women older than 18 years, diagnosed with primary stage I-IIIA breast cancer at Kaiser Permanente Northern California (2006-2019), we categorized participants into 24 drug combinations described in National Comprehensive Cancer Network guidelines for breast cancer treatment...
April 2024: JCO Clinical Cancer Informatics
https://read.qxmd.com/read/38635935/tumor-size-is-not-everything-advancing-radiomics-as-a-precision-medicine-biomarker-in-oncology-drug-development-and-clinical-care-a-report-of-a-multidisciplinary-workshop-coordinated-by-the-recist-working-group
#13
JOURNAL ARTICLE
Erica C Nakajima, Amber Simpson, Jan Bogaerts, Elisabeth G E de Vries, Richard Do, Elena Garalda, Greg Goldmacher, Paul E Kinahan, Philippe Lambin, Barbara LeStage, Qin Li, Frank Lin, Saskia Litière, Raquel Perez-Lopez, Nicholas Petrick, Lawrence Schwartz, Lesley Seymour, Lalitha Shankar, Scott A Laurie
Radiomics, the science of extracting quantifiable data from routine medical images, is a powerful tool that has many potential applications in oncology. The Response Evaluation Criteria in Solid Tumors Working Group (RWG) held a workshop in May 2022, which brought together various stakeholders to discuss the potential role of radiomics in oncology drug development and clinical trials, particularly with respect to response assessment. This article summarizes the results of that workshop, reviewing radiomics for the practicing oncologist and highlighting the work that needs to be done to move forward the incorporation of radiomics into clinical trials...
April 2024: JCO Precision Oncology
https://read.qxmd.com/read/38635934/randomized-phase-ii-study-of-gemcitabine-with-or-without-atr-inhibitor-berzosertib-in-platinum-resistant-ovarian-cancer-final-overall-survival-and-biomarker-analyses
#14
JOURNAL ARTICLE
Panagiotis A Konstantinopoulos, Su-Chun Cheng, Elizabeth K Lee, Alexandre André B A da Costa, Doga Gulhan, Andrea E Wahner Hendrickson, Bose Kochupurakkal, David L Kolin, Elise C Kohn, Joyce F Liu, Richard T Penson, Elizabeth H Stover, Jennifer Curtis, Hannah Sawyer, Madeline Polak, Dipanjan Chowdhury, Alan D D'Andrea, Anniina Färkkilä, Geoffrey I Shapiro, Ursula A Matulonis
PURPOSE: The multicenter, open-label, randomized phase 2 NCI-9944 study (NCT02595892) demonstrated that addition of ATR inhibitor (ATRi) berzosertib to gemcitabine increased progression-free survival (PFS) compared to gemcitabine alone (hazard ratio [HR]=0.57, one-sided log-rank P = .044, which met the one-sided significance level of 0.1 used for sample size calculation). METHODS: We report here the final overall survival (OS) analysis and biomarker correlations (ATM expression by immunohistochemistry, mutational signature 3 and a genomic biomarker of replication stress) along with post-hoc exploratory analyses to adjust for crossover from gemcitabine to gemcitabine/berzosertib...
April 2024: JCO Precision Oncology
https://read.qxmd.com/read/38635931/prognostic-model-for-high-grade-neuroendocrine-carcinoma-of-the-lung-incorporating-genomic-profiling-and-poly-adp-ribose-polymerase-1-expression
#15
JOURNAL ARTICLE
Hye Sook Kim, Jong Kwang Kim, Jeong Hyeon Lee, Young Joo Lee, Geon-Kuk Lee, Ji-Youn Han
PURPOSE: High-grade neuroendocrine carcinoma (HGNEC) of the lung is an aggressive cancer with a complex biology. We aimed to explore the prognostic value of genetic aberrations and poly(ADP-ribose) polymerase-1 (PARP1) expression in HGNEC and to establish a novel prognostic model. MATERIALS AND METHODS: We retrospectively enrolled 191 patients with histologically confirmed HGNEC of the lung. Tumor tissues were analyzed using PARP1 immunohistochemistry (IHC; N = 191) and comprehensive cancer panel sequencing (n = 102)...
April 2024: JCO Precision Oncology
https://read.qxmd.com/read/38635929/nature-inspired-helicoidal-nanocellulose-based-multi-compartment-assemblies-with-tunable-chiroptical-properties
#16
JOURNAL ARTICLE
Randy Mujica, Anusree Augustine, Matthias Pauly, Yann Battie, Gero Decher, Vincent Le Houérou, Olivier Felix
Cellulose-based nanocomposites are highly appealing for the development of next-generation sustainable functional materials. Although many advances have been made in this direction, the true potential of fibrillar nanocomposites has yet to be realized because available fabrication approaches are inadequate for achieving precise structural control at the sub-micrometer scale. Here a spray-assisted alignment methodology of cellulose nanofibrils is combined with the layer-by-layer assembly into an additive manufacturing process in which the alignment direction of each cellulose layer is rationally selected to achieve thin films with a helicoidal arrangement of the nanofibrils...
April 18, 2024: Advanced Materials
https://read.qxmd.com/read/38635921/high-efficiency-rechargeable-fe-co-2-battery-a-route-for-effective-co-2-conversion-and-energy-storage
#17
JOURNAL ARTICLE
Anil D Pathak, Pashupati R Adhikari, Wonbong Choi
Because of their high theoretical energy density, metal-CO2 batteries based on Li, Na, or K have attracted increasing attention recently for meeting the growing demands of CO2 recycling and conversion into electrical energy. However, the scarcity of active anode material resources, high cost, as well as safety concerns of Li, Na, and K create obstacles for practical applications. Herein, we demonstrate for the first time a high-efficiency (η = 77.2%) rechargeable Fe-CO2 battery that is composed of iron (Fe) anode and MoS2 -catalysts deposited carbon cathode...
April 18, 2024: ACS Applied Materials & Interfaces
https://read.qxmd.com/read/38635913/early-neonatal-presentation-and-neuroimaging-of-parechovirus-meningoencephalitis-in-a-preterm-baby-a-case-report
#18
JOURNAL ARTICLE
Bushra Afzal, Sriya Roychaudhuri, Mohamed El-Dib, Carmina Erdei
Neonatal meningoencephalitis caused by human parechovirus infection is being increasingly recognized in recent literature. While most cases are postnatally acquired, intrauterine infection is rare, presents early and has a more severe impact on brain health and development. We discuss here an infant born preterm at 34 weeks gestational age, with neonatal course remarkable for severe encephalopathy presenting on day 2 of life due to human parechovirus meningoencephalitis transmitted in utero. Early magnetic resonance brain imaging detected extensive white matter injury and subsequently evolved into multicystic leukoencephalopathy...
May 1, 2024: Pediatric Infectious Disease Journal
https://read.qxmd.com/read/38635899/cd106-in-tumor-specific-exhausted-cd8-t-cells-mediates-immunosuppression-by-inhibiting-tcr-signaling
#19
JOURNAL ARTICLE
Yuto Naoi, Takao Morinaga, Joji Nagasaki, Ryo Ariyasu, Youki Ueda, Kazuo Yamashita, Wenhao Zhou, Shusuke Kawashima, Katsushige Kawase, Akiko Honobe-Tabuchi, Takehiro Ohnuma, Tatsuyoshi Kawamura, Yoshiyasu Umeda, Yu Kawahara, Yasuhiro Nakamura, Yukiko Kiniwa, Osamu Yamasaki, Satoshi Fukushima, Masahito Kawazu, Yutaka Suzuki, Hiroyoshi Nishikawa, Toyoyuki Hanazawa, Mizuo Ando, Takashi Inozume, Yosuke Togashi
T cell exhaustion is a major contributor to immunosuppression in the tumor microenvironment (TME). Blockade of key regulators of T cell exhaustion, such as PD-1, can reinvigorate tumor-specific T cells and activate anti-tumor immunity in various types of cancer. Here, we identified that CD106 was specifically expressed in exhausted CD8+ T cells in the TME using single-cell RNA-sequencing. High CD106 expression in the TME in clinical samples corresponded to improved response to cancer immunotherapy. CD106 in tumor-specific T cells suppressed anti-tumor immunity both in vitro and in vivo, and loss of CD106 in CD8+ T cells suppressed tumor growth and improved response to PD-1 blockade...
April 18, 2024: Cancer Research
https://read.qxmd.com/read/38635887/a-systematic-review-meta-analysis-and-meta-regression-amalgamating-the-driven-approaches-used-to-quantify-dynamic-cerebral-autoregulation
#20
REVIEW
Joel S Burma, Marc-Antoine Roy, Courtney M Kennedy, Lawrence Labrecque, Patrice Brassard, Jonathan D Smirl
Numerous driven techniques have been utilized to assess dynamic cerebral autoregulation (dCA) in healthy and clinical populations. The current review aimed to amalgamate this literature and provide recommendations to create greater standardization for future research. The PubMed database was searched with inclusion criteria consisting of original research articles using driven dCA assessments in humans. Risk of bias were completed using Scottish Intercollegiate Guidelines Network and Methodological Index for Non-Randomized Studies...
April 18, 2024: Journal of Cerebral Blood Flow and Metabolism
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