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https://www.readbyqxmd.com/read/28822336/cesium-sorption-reversibility-and-kinetics-on-illite-montmorillonite-and-kaolinite
#1
Chad B Durrant, James D Begg, Annie B Kersting, Mavrik Zavarin
Understanding sorption and desorption processes is essential to predicting the mobility of radionuclides in the environment. We investigate adsorption/desorption of cesium in both binary (Cs+one mineral) and ternary (Cs+two minerals) experiments to study component additivity and sorption reversibility over long time periods (500days). Binary Cs sorption experiments were performed with illite, montmorillonite, and kaolinite in a 5mM NaCl/0.7mM NaHCO3 solution (pH8) and Cs concentration range of 10(-3) to 10(-11)M...
August 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28822323/discriminative-clustering-on-manifold-for-adaptive-transductive-classification
#2
Zhao Zhang, Lei Jia, Min Zhang, Bing Li, Li Zhang, Fanzhang Li
In this paper, we mainly propose a novel adaptive transductive label propagation approach by joint discriminative clustering on manifolds for representing and classifying high-dimensional data. Our framework seamlessly combines the unsupervised manifold learning, discriminative clustering and adaptive classification into a unified model. Also, our method incorporates the adaptive graph weight construction with label propagation. Specifically, our method is capable of propagating label information using adaptive weights over low-dimensional manifold features, which is different from most existing studies that usually predict the labels and construct the weights in the original Euclidean space...
August 1, 2017: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/28822294/does-reconsolidation-occur-in-natural-settings-memory-reconsolidation-and-anxiety-disorders
#3
REVIEW
Rodrigo S Fernández, María E Pedreira, Mariano M Boccia
In normal settings, our brain is able to update its stored representations in content, strength, and/or expectations by the memory reconsolidation process. Thus, a reactivated memory enters in a transient labile state (destabilization) followed by a re-stabilization phase in order to persist (memory reconsolidation). Cognitive neuroscience and its insight into psychiatric problems attributed a close relationship between memory (formation, maintenance, and utilization) and several mental disorders. In this framework, the reconsolidation process could be not only the mechanism for maintenance of some psychopathologies, but also open a novel therapeutic window...
August 10, 2017: Clinical Psychology Review
https://www.readbyqxmd.com/read/28822282/a-two-step-optimization-strategy-for-2nd-generation-ethanol-production-using-softwood-hemicellulosic-hydrolysate-as-fermentation-substrate
#4
Iulian-Zoltan Boboescu, Malorie Gélinas, Jean-Baptiste Beigbeder, Jean-Michel Lavoie
Ethanol production using waste biomass represents a very attractive approach. However, there are considerable challenges preventing a wide distribution of these novel technologies. Thus, a fractional-factorial screening of process variables and Saccharomyces cerevisiae yeast inoculum conditions was performed using a synthetic fermentation media. Subsequently, a response-surface methodology was developed for maximizing ethanol yields using a hemicellulosic solution generated through the chemical hydrolysis of steam treatment broth obtained from residual softwood biomass...
July 29, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28822183/-application-of-dosc-combined-with-sbc-in-batches-transfer-of-nir-quantitative-model
#5
Yi-Fei Jia, Ying-Ying Zhang, Bing Xu, An-Dong Wang, Xue-Yan Zhan
Near infrared model established under a certain condition can be applied to the new samples status, environmental conditions or instrument status through the model transfer. Spectral background correction and model update are two types of data process methods of NIR quantitative model transfer, and orthogonal signal regression (OSR) is a method based on spectra background correction, in which virtual standard spectra is used to fit a linear relation between master batches spectra and slave batches spectra, and map the slave batches spectra to the master batch spectra to realize the transfer of near infrared quantitative model...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28822161/-synergistic-mechanism-of-traditional-chinese-medicine-based-on-target-combination-of-pept1-and-ppar%C3%AE
#6
Lian-Sheng Qiao, Yan-Kun Chen, Gang-Gang Luo, Fang Lu, Si-Jia Liu, Gong-Yu Li, Yan-Ling Zhang
Synergistic effect is main pharmacological mechanism of traditional Chinese medicine(TCM). The research method based on the key targets combination is an important method to explore the synergistic effect of TCM. Peptide transporter 1 (PepT1) is an essential target for drug uptake into the bloodstream, accounting for about 50% of the total transporter protein content from the small intestine. Peroxisome proliferator-activated receptor α(PPARα) is the lipid-lowering target of fibrates, which have a good hypolipidemic effect by activating PPARα...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28822149/-ecology-suitability-study-of-ephedra-intermedia
#7
Xiao-Hui Ma, You-Yuan Lu, De-Dong Huang, Tian-Tian Zhu, Pei-Lin Lv, Ling Jin
The study aims at predicting ecological suitability of Ephedra intermedia in China by using maximum entropy Maxent model combined with GIS, and finding the main ecological factors affecting the distribution of E. intermedia suitability in appropriate growth area. Thirty-eight collected samples of E. intermedia and E. intermedia and 116 distribution information from CVH information using ArcGIS technology were analyzed. MaxEnt model was applied to forecast the E. intermedia in our country's ecology. E. intermedia MaxEnt ROC curve model training data and testing data sets the AUC value was 0...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28822134/genome-scale-modeling-of-photorespiratory-pathway-manipulation
#8
Anika Küken, Zoran Nikoloski
Quantifying the redistribution of metabolic reaction fluxes under experimental scenarios that affect the photorespiratory pathway can provide insights about the coupling of this pathway with other parts of metabolism. However, differential flux profiling on a genome-scale level remains the biggest challenge in modern systems biology. Here we present a protocol for applying a constraint-based approach, termed iReMet-Flux, that integrates data about relative metabolite levels in a stoichiometric metabolic model to predict differential fluxes at a genome-scale level under mild modeling assumptions...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28822104/comparison-of-the-toxic-effects-of-quinolinic-acid-and-3-nitropropionic-acid-in-c-elegans-involvement-of-the-skn-1-pathway
#9
Ilan Kotlar, Aline Colonnello, María Fernanda Aguilera-González, Daiana Silva Avila, María Eduarda de Lima, Rodolfo García-Contreras, Alma Ortíz-Plata, Félix Alexandre Antunes Soares, Michael Aschner, Abel Santamaría
The tryptophan metabolite, quinolinic acid (QUIN), and the mitochondrial toxin 3-nitropropionic acid (3-NP) are two important tools for toxicological research commonly used in neurotoxic models of excitotoxicity, oxidative stress, energy depletion, and neuronal cell death in mammals. However, their toxic properties have yet to be explored in the nematode Caenorhabditis elegans (C. elegans) for the establishment of novel, simpler, complementary, alternative, and predictive neurotoxic model of mammalian neurotoxicity...
August 18, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28822076/studies-of-the-benzopyran-class-of-selective-cox-2-inhibitors-using-3d-qsar-and-molecular-docking
#10
Dharmendra K Yadav, Saloni, Praveen Sharma, Sanjeev Misra, Harpreet Singh, Ricardo L Mancera, Kang Kim, Cheongyun Jang, Mi-Hyun Kim, Horacio Pérez-Sánchez, Eun Ha Choi, Surendra Kumar
The Gaussian-based 3D-QSAR studies for 58 selective COX-2 (cyclooxygenase-2) inhibitors belonging to benzopyran chemical class were performed. Partial least squares analysis produced statistically significant model with (R training(2)  = 0.866) and predictability (Q training(2)  = 0.66, Q test(2)  = 0.846). The 3D-QSAR model includes steric, electrostatic, hydrophobic, and hydrogen bond acceptor field indicators, whereas the potential field contributions indicate that the steric and hydrophobic features of the molecules play an important role in governing their biological activity...
August 18, 2017: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/28822005/a-supply-model-for-nurse-workforce-projection-in-malaysia
#11
Zuraida Abal Abas, Mohamad Raziff Ramli, Mohamad Ishak Desa, Nordin Saleh, Ainul Nadziha Hanafiah, Nuraini Aziz, Zaheera Zainal Abidin, Abdul Samad Shibghatullah, Ahmad Fadzli Nizam Abdul Rahman, Haslinda Musa
The paper aims to provide an insight into the significance of having a simulation model to forecast the supply of registered nurses for health workforce planning policy using System Dynamics. A model is highly in demand to predict the workforce demand for nurses in the future, which it supports for complete development of a needs-based nurse workforce projection using Malaysia as a case study. The supply model consists of three sub-models to forecast the number of registered nurses for the next 15 years: training model, population model and Full Time Equivalent (FTE) model...
August 18, 2017: Health Care Management Science
https://www.readbyqxmd.com/read/28821971/multiscale-mechanics-of-the-cervical-facet-capsular-ligament-with-particular-emphasis-on-anomalous-fiber-realignment-prior-to-tissue-failure
#12
Sijia Zhang, Vahhab Zarei, Beth A Winkelstein, Victor H Barocas
The facet capsular ligaments encapsulate the bilateral spinal facet joints and are common sources of painful injury due to afferent innervation. These ligaments exhibit architectural complexity, which is suspected to contribute to the experimentally observed lack of co-localization between macroscopic strain and microstructural tissue damage. The heterogeneous and multiscale nature of this ligament, combined with challenges in experimentally measuring its microscale mechanics, hinders the ability to understand sensory mechanisms under normal or injurious loading...
August 18, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28821938/depth-of-response-predicts-the-clinical-outcome-of-advanced-her2-positive-gastric-cancer-to-trastuzumab-based-first-line-chemotherapy
#13
Shigenori Kadowaki, Toshiki Masuishi, Tetsuya Eto, Yukiya Narita, Hiroya Taniguchi, Takashi Ura, Masashi Ando, Masahiro Tajika, Yasumasa Niwa, Yasushi Yatabe, Kei Muro
PURPOSE: Accumulating evidence suggests that response-related parameters such as depth of response (DpR) might be associated with survival in colorectal cancer, which has not been shown in gastric cancer. This study aimed to evaluate whether DpR was associated with clinical outcomes in HER2-positive AGC patients treated with trastuzumab-based chemotherapy. METHODS: Fifty-seven HER2-positive AGC patients who were treated with trastuzumab in combination with fluoropyrimidines plus cisplatin therapy as first-line treatment were retrospectively enrolled...
August 18, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28821916/relative-social-standing-and-suicide-ideation-among-kenyan-males-the-interpersonal-theory-of-suicide-in-context
#14
M L Goodman, H Serag, P K Keiser, S Gitari, B G Raimer
PURPOSE: The purpose of this study is to investigate the association between subjective social status and suicide ideation in a sample of young Kenyan men (age 18-34 years). Situating insights from the interpersonal theory of suicide within social determinants of health framework, we consider whether lower subjective social status predicts lower collective self-esteem (CSE), hopelessness, less meaning in life and more loneliness, and whether these characteristics mediate associations between subjective social status and suicide ideation...
August 18, 2017: Social Psychiatry and Psychiatric Epidemiology
https://www.readbyqxmd.com/read/28821879/musashi-1-enhances-glioblastoma-cell-migration-and-cytoskeletal-dynamics-through-translational-inhibition-of-tensin3
#15
Hsiao-Yun Chen, Liang-Ting Lin, Mong-Lien Wang, Benoit Laurent, Chih-Hung Hsu, Chih-Ming Pan, Wan-Ru Jiang, Pau-Yuan Chen, Hsin-I Ma, Yi-Wei Chen, Pin-I Huang, Arthur Chiou, Shih-Hwa Chiou
The RNA-binding protein Musashi-1 (MSI1) exerts essential roles in multiple cellular functions, such as maintenance of self-renewal and pluripotency of stem cells. MSI1 overexpression has been observed in several tumor tissues, including glioblastoma (GBM), and is considered as a well-established marker for tumor metastasis and recurrence. However, the molecular mechanisms by which MSI1 regulates cell migration are still undetermined. Here we reported that MSI1 alters cell morphology, promotes cell migration, and increases viscoelasticity of GBM cells...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821868/dysmobility-syndrome-and-risk-of-mortality-for-community-dwelling-middle-aged-and-older-adults-the-nexus-of-aging-and-body-composition
#16
Wei-Ju Lee, Li-Kuo Liu, An-Chun Hwang, Li-Ning Peng, Ming-Hsien Lin, Liang-Kung Chen
Dysmobility syndrome is a newly proposed concept to comprehensively consider bone-muscle-adiposity as a whole to associate with mortality and other adverse outcomes in the older adults. Little was known in Asian populations since the body composition was highly related to ethnicity. The study aimed to evaluate the association between dysmobility syndrome and mortality and to explore the most optimal operational definition for dysmobility syndrome. The prevalence of dysmobility syndrome was 3.9-10.1% based on different operational definitions of adiposity and skeletal muscle index...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821842/direct-learning-hidden-excited-state-interaction-patterns-from-ab-initio-dynamics-and-its-implication-as-alternative-molecular-mechanism-models
#17
Fang Liu, Likai Du, Dongju Zhang, Jun Gao
The excited states of polyatomic systems are rather complex, and often exhibit meta-stable dynamical behaviors. Static analysis of reaction pathway often fails to sufficiently characterize excited state motions due to their highly non-equilibrium nature. Here, we proposed a time series guided clustering algorithm to generate most relevant meta-stable patterns directly from ab initio dynamic trajectories. Based on the knowledge of these meta-stable patterns, we suggested an interpolation scheme with only a concrete and finite set of known patterns to accurately predict the ground and excited state properties of the entire dynamics trajectories, namely, the prediction with ensemble models (PEM)...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821822/bladder-cancer-treatment-response-assessment-in-ct-using-radiomics-with-deep-learning
#18
Kenny H Cha, Lubomir Hadjiiski, Heang-Ping Chan, Alon Z Weizer, Ajjai Alva, Richard H Cohan, Elaine M Caoili, Chintana Paramagul, Ravi K Samala
Cross-sectional X-ray imaging has become the standard for staging most solid organ malignancies. However, for some malignancies such as urinary bladder cancer, the ability to accurately assess local extent of the disease and understand response to systemic chemotherapy is limited with current imaging approaches. In this study, we explored the feasibility that radiomics-based predictive models using pre- and post-treatment computed tomography (CT) images might be able to distinguish between bladder cancers with and without complete chemotherapy responses...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821755/effects-of-emotional-valence-on-sense-of-agency-require-a-predictive-model
#19
Michiko Yoshie, Patrick Haggard
Sense of agency (SoA), a feeling that one's voluntary actions produce events in the external world, is a key factor behind every goal-directed human behaviour. Recent studies have demonstrated that SoA is reduced when one's voluntary action causes negative outcomes, compared to when it causes positive outcomes. It is yet unclear whether this emotional modulation of SoA is caused by predicting the outcome valence (prediction hypothesis) or by retrospectively interpreting the outcome (postdiction hypothesis)...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821754/discovery-of-potential-biomarkers-in-human-melanoma-cells-with-different-metastatic-potential-by-metabolic-and-lipidomic-profiling
#20
Hye-Youn Kim, Hwanhui Lee, So-Hyun Kim, Hanyong Jin, Jeehyeon Bae, Hyung-Kyoon Choi
Malignant melanoma, characterized by its ability to metastasize to other organs, is responsible for 90% of skin cancer mortality. To investigate alterations in the cellular metabolome and lipidome related to melanoma metastasis, gas chromatography-mass spectrometry (GC-MS) and direct infusion-mass spectrometry (DI-MS)-based metabolic and lipidomic profiling were performed on extracts of normal human melanocyte (HEMn-LP), low metastatic melanoma (A375, G361), and highly metastatic melanoma (A2058, SK-MEL-28) cell lines...
August 18, 2017: Scientific Reports
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