keyword
https://read.qxmd.com/read/38647089/high-intensity-circular-dichroism-of-head-to-tail-regioregular-poly-1-4-phenylene-s-in-the-aggregated-state
#1
JOURNAL ARTICLE
Rikuya Tanaka, Seiha Yamaoka, Shuichi Ikeda, Kentaro Okano, Masaki Horie, Hideto Minami, Nozomu Suzuki, Atsunori Mori
Circular dichroism (CD) studies on poly(1,4-phenylene)s bearing a chiral side chain in the aggregated conditions were carried out. Little CD was observed in a solution form, while addition of a poor solvent into the polyphenylene solution induced aggregation and a strong CD was observed, accordingly. Applying the controlled degree of polymerization (DP) of poly(1,4-phenylene) in the use of bidentate diphosphine Chiraphos as a ligand for the nickel catalyst, the relationship of DP with CD strength was studied to reveal to show the highest CD at the DP = 84 (gabs = ca...
April 22, 2024: Chemistry: a European Journal
https://read.qxmd.com/read/38647032/prediction-of-the-essential-intermolecular-contacts-for-side-binding-of-vasp-on-f-actin
#2
JOURNAL ARTICLE
Fikret Aydin, Harshwardhan H Katkar, Alisha Morganthaler, Alyssa J Harker, David R Kovar, Gregory A Voth
Vasodilator-stimulated phosphoprotein (VASP) family proteins play a crucial role in mediating the actin network architecture in the cytoskeleton. The Ena/VASP homology 2 (EVH2) domain in each of the four identical arms of the tetrameric VASP consists of a loading poly-Pro region, a G-actin-binding domain (GAB), and an F-actin-binding domain (FAB). Together, the poly-Pro, GAB, and FAB domains allow VASP to bind to sides of actin filaments in a bundle, and recruit profilin-G-actin to processively elongate the filaments...
April 22, 2024: Cytoskeleton
https://read.qxmd.com/read/38643062/impact-of-the-inaccessible-genome-on-genotype-imputation-and-genome-wide-association-studies
#3
JOURNAL ARTICLE
Eva König, Jonathan Stewart Mitchell, Michele Filosi, Christian Fuchsberger
Genotype imputation is widely used in genome-wide association studies (GWAS). However, both the genotyping chips and imputation reference panels are dependent on next-generation sequencing (NGS). Due to the nature of NGS, some regions of the genome are inaccessible to sequencing. To date, there has been no complete evaluation of these regions and their impact on the identification of associations in GWAS remains unclear. In this study, we systematically assess the extent to which variants in inaccessible regions are underrepresented on genotyping chips and imputation reference panels, in GWAS results and in variant databases...
April 20, 2024: Human Molecular Genetics
https://read.qxmd.com/read/38640679/effects-of-nitrate-reduction-on-the-biotransformation-of-1h-1-2-4-triazole-mechanism-and-community-evolution
#4
JOURNAL ARTICLE
Qiang Chi, Jing Wang, Yong Tu, Jing Xu, Ling Pan, Jinyou Shen
Due to the refractory of 1 H-1,2,4-triazole (TZ), conventional anaerobic biological treatment technology is usually restricted by low removal efficiency and poor system stability. In this study, TZ biodegradation and nitrate reduction was coupled to improve the removal efficiency of TZ from polluted wastewater. Batch assay was performed with pure culture strain Raoultella sp. NJUST42, which was reported to have the capability to degrade TZ in our previous study. Based on batch assay result, complete removal of TZ could be achieved in the presence of nitrate, whereas only 50% of TZ could be removed in the control system...
April 17, 2024: Journal of Hazardous Materials
https://read.qxmd.com/read/38622846/state-diagrams-of-green-peas-pisum-sativum-l-powders-with-different-maltodextrin-additions
#5
JOURNAL ARTICLE
Anna Stępień, Mariusz Witczak
The purpose of this study was to examine the effect of maltodextrin addition on the physical stability of powdered green peas. The evaluation of the physical state of the material was based on the equilibrium water content of the monolayer (Xm ) and the glass transition temperatures of the powders at room temperature (Tg ) and in the frozen state (Tg' ). Graphical sorption characteristic at 25°C was determined using static-gravimetric method while capacity of the monolayer values was calculated from the mathematical GAB model...
April 15, 2024: Biopolymers
https://read.qxmd.com/read/38621937/-effects-of-maltodextrin-on-water-adsorption-and-thermodynamic-properties-of-codonopsis-radix-spray-dried-powder
#6
JOURNAL ARTICLE
Hui Liu, Xiao-Jian Luo, Yan He, Yao Zhang, Yin Xie, Xiao-Yong Rao
This study aims to reveal the effects of maltodextrin(MD) on the water adsorption and thermodynamic properties of Codonopsis Radix(DS) spray-dried powder by determining the moisture and energy changes of the powder in the process of moisture absorption. The static weighing method was used to obtain the isothermal water adsorption data of the spray-dried powder in 6 saturated salt solutions(KAc, MgCl_2·6H_2O, K_2CO_3, NaBr, NaCl, and KCl) at 3 temperatures(25, 35, and 45 ℃). Six models were used for fitting of the water adsorption process, and the most suitable model was selected based on the model performance...
March 2024: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://read.qxmd.com/read/38617864/primary-invasive-ductal-carcinoma-arising-in-axillary-accessory-breast-a-case-report
#7
Seo Young Park, Jeeyeon Lee, Ji Young Park, Gab Chul Kim, Jongmin Park, Jung Geun Cha, Hye Jung Kim
Ectopic breast tissue can develop along the mammary ridge from the axilla to the groin, and the most common site is the axillae. Primary carcinoma of ectopic breast tissue is extremely rare. We report a rare case of a 61-year-old woman with a palpable mass in her left axilla who had a history of surgical excision of accessory breast tissue in the same area. Mammography (MMG), including axillary tail view, ultrasound (US), and breast MRI were performed. We evaluated the extent and characteristics of the microcalcifications in the axillary tail view...
March 2024: J Korean Soc Radiol
https://read.qxmd.com/read/38594297/enzymatic-phosphatization-of-fish-scales-a-pathway-for-fish-fossilization
#8
JOURNAL ARTICLE
Fabian Gäb, Gabriele Bierbaum, Richard Wirth, Christoph Bultmann, Brianne Palmer, Kathrin Janssen, Sabina Karačić
Phosphatized fish fossils occur in various locations worldwide. Although these fossils have been intensively studied over the past decades they remain a matter of ongoing research. The mechanism of the permineralization reaction itself remains still debated in the community. The mineralization in apatite of a whole fish requires a substantial amount of phosphate which is scarce in seawater, so the origin of the excess is unknown. Previous research has shown that alkaline phosphatase, a ubiquitous enzyme, can increase the phosphate content in vitro in a medium to the degree of saturation concerning apatite...
April 9, 2024: Scientific Reports
https://read.qxmd.com/read/38594208/boost-the-circularly-polarized-phosphorescence-of-chiral-organometallic-platinum-complexes-by-hierarchical-assembly-into-fibrillar-networks
#9
JOURNAL ARTICLE
Zhong-Liang Gong, Ti-Xiong Dan, Jian-Cheng Chen, Zhong-Qiu Li, Jiannian Yao, Yu-Wu Zhong
Circularly polarized luminescence (CPL)-active molecular materials have drawn increasing attention due to their promising applications for next-generation display and optoelectronic technologies. Currently, it is challenging to obtain CPL materials with both large luminescence dissymmetry factor (glum) and high quantum yield (Φ). A pair of enantiomeric N^N^C-type Pt(II) complexes (L/D)-1 modified with chiral Leucine methyl ester are presented herein. Though the solutions of these complexes are CPL-inactive, the spin-coated thin films of (L/D)-1 exhibit giantly-amplified circularly polarized phosphorescences with |glum| of 0...
April 9, 2024: Angewandte Chemie
https://read.qxmd.com/read/38580522/effectiveness-of-adjuvant-chemotherapy-in-variant-histology-upper-tract-urothelial-carcinoma-following-radical-nephroureterectomy-stabilized-inverse-probability-treatment-weighting-analysis-of-single-center-experience
#10
JOURNAL ARTICLE
Inkeun Park, Jungyo Suh, Bumjin Lim, Cheryn Song, Dalsan You, In Gab Jeong, Jun Hyuk Hong, Hanjong Ahn, Yong Mee Cho, Jaelyun Lee, Bumsik Hong
PURPOSE: The study aimed to investigate the impact of adjuvant chemotherapy on time to recurrence (TTR) and overall survival (OS) in patients with histologic variants of upper tract urothelial carcinoma (VUTUC) following radical nephroureterectomy (RNU). MATERIALS AND METHODS: A retrospective review of 131 VUTUC patients' medical records, from a pool of 368 non-metastatic localized or locally advanced UTUC cases, treated at a single tertiary referral center between January 2011 and January 2021...
March 4, 2024: Clinical Genitourinary Cancer
https://read.qxmd.com/read/38568255/association-of-preoperative-sarcopenia-with-the-long-term-prognosis-of-patients-with-bladder-cancer-undergoing-radical-cystectomy
#11
JOURNAL ARTICLE
Sangmin Lee, Youngjoon Yoon, Jungyo Suh, Dalsan You, Bumsik Hong, Jun Hyuk Hong, Hanjong Ahn, In Gab Jeong, Bumjin Lim
PURPOSE: This retrospective study aimed to assess the correlation between preoperative sarcopenia and long-term oncologic outcomes in patients undergoing radical cystectomy for bladder cancer. METHODS: We included 528 patients who underwent radical cystectomy for bladder cancer between 2000 and 2010 at Asan Medical Center, Seoul, Korea. Preoperative skeletal muscle mass was quantified by analyzing computed tomography images at the third lumbar vertebra. Sarcopenia was defined based on the skeletal muscle index...
April 3, 2024: Journal of Cancer Research and Clinical Oncology
https://read.qxmd.com/read/38568232/development-of-a-corn-flour-certified-reference-material-for-the-accurate-determination-of-zearalenone
#12
JOURNAL ARTICLE
Yared Getachew Lijalem, Mohamed A Gab-Allah, Hyeonwoo Yu, Kihwan Choi, Byungjoo Kim
A certified reference material (CRM, KRISS 108-01-002) for zearalenone in corn flour was developed to assure reliable and accurate measurements in testing laboratories. Commercially available corn flour underwent freeze-drying, pulverization, sieving, and homogenization. The final product was packed in amber bottles, approximately 14 g per unit, and preserved at -70 °C. 13 C18 -Zearalenone was used as an internal standard (IS) for the certification of zearalenone by isotope-dilution liquid chromatography-tandem mass spectrometry (ID-LC‒MS/MS) and for the analysis of α-zearalenol, β-zearalenol, and zearalanone by LC‒MS/MS...
April 3, 2024: Analytical and Bioanalytical Chemistry
https://read.qxmd.com/read/38566753/properties-structure-and-acceptability-of-innovative-legume-based-biscuits-with-alternative-sweeteners
#13
JOURNAL ARTICLE
Andriana E Lazou
The effects of legume incorporation and sweetener substitution on the quality characteristics of innovative biscuits were investigated. The wheat flour was substituted with chickpea and lentil flour at ratios ranging from 0 to 30% legume to whole-meal dicoccum wheat flour. The sugar was substituted by oligofructose at 50 and 100% levels. The quality characteristics, including physicochemical properties (moisture content, water activity, and color), sorption characteristics, structural and textural properties, and sensory properties, were significantly affected by the substitutions...
2024: International Journal of Food Science
https://read.qxmd.com/read/38536578/the-role-of-macrophages-in-lung-fibrosis-and-the-signaling-pathway
#14
REVIEW
Xingmei Wang, Jiaxu Zhou, Xinrui Li, Chang Liu, Lan Liu, Hong Cui
Lung fibrosis is a dysregulated repair process caused by excessive deposition of extracellular matrix that can severely affect respiratory function. Macrophages are a group of immune cells that have multiple functions and can perform a variety of roles. Lung fibrosis develops with the involvement of pro-inflammatory and pro-fibrotic factors secreted by macrophages. The balance between M1 and M2 macrophages has been proposed to play a role in determining the trend and severity of lung fibrosis. New avenues and concepts for preventing and treating lung fibrosis have emerged in recent years through research on mitochondria, Gab proteins, and exosomes...
March 27, 2024: Cell Biochemistry and Biophysics
https://read.qxmd.com/read/38536016/replacing-the-langmuir-isotherm-with-the-statistical-thermodynamic-fluctuation-theory
#15
REVIEW
Seishi Shimizu, Nobuyuki Matubayasi
In the age of all-atom simulations, primitive isotherm models, such as Langmuir, BET, and GAB, are still used widely for analyzing experimental data. However, their routine applications to complex materials are not in line with their underlying assumptions (i.e., statistically independent adsorption sites with no interfacial structural changes), which manifests as the temperature dependence of the monolayer capacity. Our proposal is to replace these models with the statistical thermodynamic fluctuation theory because the ABC isotherm derived from it (i) contains these primitive models as its special cases, (ii) is applicable to any interfacial geometry, and (iii) is linked to molecular distribution functions, sharing the same language as simulations...
March 27, 2024: Journal of Physical Chemistry Letters
https://read.qxmd.com/read/38511009/integrated-management-of-fruit-trees-and-bletilla-striata-implications-for-soil-nutrient-profiles-and-microbial-community-structures
#16
JOURNAL ARTICLE
Qiufeng Xie, Huimei Xu, Rouyuan Wen, Le Wang, Yan Yang, Haizhu Zhang, BaoShun Su
INTRODUCTION: Forest medicinal compound systems in agroforestry ecosystems represent a multi-layered cultivation approach that utilizes forest resources efficiently. However, research on how these systems affect soil nutrients and microbial communities is limited. METHODS: This study compared the soil chemical properties and microbial communities of Bletilla striata (C) grown alone versus in agroforestry systems with apple (PB), pear (LB), and peach trees (TB), aiming to understand the impact of these systems on soil health and microbial diversity...
2024: Frontiers in Microbiology
https://read.qxmd.com/read/38509133/inter-hospital-external-validation-of-interpretable-machine-learning-based-triage-score-for-the-emergency-department-using-common-data-model
#17
JOURNAL ARTICLE
Jae Yong Yu, Doyeop Kim, Sunyoung Yoon, Taerim Kim, SeJin Heo, Hansol Chang, Gab Soo Han, Kyung Won Jeong, Rae Woong Park, Jun Myung Gwon, Feng Xie, Marcus Eng Hock Ong, Yih Yng Ng, Hyung Joon Joo, Won Chul Cha
Emergency departments (ED) are complex, triage is a main task in the ED to prioritize patient with limited medical resources who need them most. Machine learning (ML) based ED triage tool, Score for Emergency Risk Prediction (SERP), was previously developed using an interpretable ML framework with single center. We aimed to develop SERP with 3 Korean multicenter cohorts based on common data model (CDM) without data sharing and compare performance with inter-hospital validation design. This retrospective cohort study included all adult emergency visit patients of 3 hospitals in Korea from 2016 to 2017...
March 20, 2024: Scientific Reports
https://read.qxmd.com/read/38446893/australia-s-tinderbox-drought-an-extreme-natural-event-likely-worsened-by-human-caused-climate-change
#18
JOURNAL ARTICLE
Anjana Devanand, Georgina M Falster, Zoe E Gillett, Sanaa Hobeichi, Chiara M Holgate, Chenhui Jin, Mengyuan Mu, Tess Parker, Sami W Rifai, Kathleen S Rome, Milica Stojanovic, Elisabeth Vogel, Nerilie J Abram, Gab Abramowitz, Sloan Coats, Jason P Evans, Ailie J E Gallant, Andy J Pitman, Scott B Power, Surendra P Rauniyar, Andréa S Taschetto, Anna M Ukkola
We examine the characteristics and causes of southeast Australia's Tinderbox Drought (2017 to 2019) that preceded the Black Summer fire disaster. The Tinderbox Drought was characterized by cool season rainfall deficits of around -50% in three consecutive years, which was exceptionally unlikely in the context of natural variability alone. The precipitation deficits were initiated and sustained by an anomalous atmospheric circulation that diverted oceanic moisture away from the region, despite traditional indicators of drought risk in southeast Australia generally being in neutral states...
March 8, 2024: Science Advances
https://read.qxmd.com/read/38438591/designing-future-peanut-the-power-of-genomics-assisted-breeding
#19
REVIEW
Ali Raza, Hua Chen, Chong Zhang, Yuhui Zhuang, Yasir Sharif, Tiecheng Cai, Qiang Yang, Pooja Soni, Manish K Pandey, Rajeev K Varshney, Weijian Zhuang
Integrating GAB methods with high-throughput phenotyping, genome editing, and speed breeding hold great potential in designing future smart peanut cultivars to meet market and food supply demands. Cultivated peanut (Arachis hypogaea L.), a legume crop greatly valued for its nourishing food, cooking oil, and fodder, is extensively grown worldwide. Despite decades of classical breeding efforts, the actual on-farm yield of peanut remains below its potential productivity due to the complicated interplay of genotype, environment, and management factors, as well as their intricate interactions...
March 4, 2024: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://read.qxmd.com/read/38436740/analysis-of-forest-cover-change-and-its-driving-factors-in-senan-district-amhara-region-ethiopia
#20
JOURNAL ARTICLE
Anteneh Bongasie, Thakur Dhakal, Alemu Ayalew, Tae-Su Kim, Yohan Lee, Gab-Sue Jang
Forests are pivotal in upholding and stabilizing ecosystem functions and services globally. Assessing changes in forest cover serves as a crucial indicator to comprehend the scope, scale, and dynamics of land use and land cover alterations on regional and global scales. This study evaluates the forest cover changes between 2005 and 2021, pinpointing the key drivers of forest land changes within the Senan district in Ethiopia's Amhara region. The analysis incorporated Landsat satellite images from 2005, 2011, and 2021, supplemented by field surveys using questionnaire data...
March 4, 2024: Environmental Monitoring and Assessment
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