composition Perspective maximum likelihood-type estimation via proximal decomposition By projecteuclid.org Published On :: Mon, 27 Apr 2020 22:02 EDT Patrick L. Combettes, Christian L. Müller. Source: Electronic Journal of Statistics, Volume 14, Number 1, 207--238.Abstract: We introduce a flexible optimization model for maximum likelihood-type estimation (M-estimation) that encompasses and generalizes a large class of existing statistical models, including Huber’s concomitant M-estimator, Owen’s Huber/Berhu concomitant estimator, the scaled lasso, support vector machine regression, and penalized estimation with structured sparsity. The model, termed perspective M-estimation, leverages the observation that convex M-estimators with concomitant scale as well as various regularizers are instances of perspective functions, a construction that extends a convex function to a jointly convex one in terms of an additional scale variable. These nonsmooth functions are shown to be amenable to proximal analysis, which leads to principled and provably convergent optimization algorithms via proximal splitting. We derive novel proximity operators for several perspective functions of interest via a geometrical approach based on duality. We then devise a new proximal splitting algorithm to solve the proposed M-estimation problem and establish the convergence of both the scale and regression iterates it produces to a solution. Numerical experiments on synthetic and real-world data illustrate the broad applicability of the proposed framework. Full Article
composition Tensor Train Decomposition on TensorFlow (T3F) By Published On :: 2020 Tensor Train decomposition is used across many branches of machine learning. We present T3F—a library for Tensor Train decomposition based on TensorFlow. T3F supports GPU execution, batch processing, automatic differentiation, and versatile functionality for the Riemannian optimization framework, which takes into account the underlying manifold structure to construct efficient optimization methods. The library makes it easier to implement machine learning papers that rely on the Tensor Train decomposition. T3F includes documentation, examples and 94% test coverage. Full Article
composition Bayesian mixed effects models for zero-inflated compositions in microbiome data analysis By projecteuclid.org Published On :: Wed, 15 Apr 2020 22:05 EDT Boyu Ren, Sergio Bacallado, Stefano Favaro, Tommi Vatanen, Curtis Huttenhower, Lorenzo Trippa. Source: The Annals of Applied Statistics, Volume 14, Number 1, 494--517.Abstract: Detecting associations between microbial compositions and sample characteristics is one of the most important tasks in microbiome studies. Most of the existing methods apply univariate models to single microbial species separately, with adjustments for multiple hypothesis testing. We propose a Bayesian analysis for a generalized mixed effects linear model tailored to this application. The marginal prior on each microbial composition is a Dirichlet process, and dependence across compositions is induced through a linear combination of individual covariates, such as disease biomarkers or the subject’s age, and latent factors. The latent factors capture residual variability and their dimensionality is learned from the data in a fully Bayesian procedure. The proposed model is tested in data analyses and simulation studies with zero-inflated compositions. In these settings and within each sample, a large proportion of counts per microbial species are equal to zero. In our Bayesian model a priori the probability of compositions with absent microbial species is strictly positive. We propose an efficient algorithm to sample from the posterior and visualizations of model parameters which reveal associations between covariates and microbial compositions. We evaluate the proposed method in simulation studies, and then analyze a microbiome dataset for infants with type 1 diabetes which contains a large proportion of zeros in the sample-specific microbial compositions. Full Article
composition Predicting paleoclimate from compositional data using multivariate Gaussian process inverse prediction By projecteuclid.org Published On :: Wed, 27 Nov 2019 22:01 EST John R. Tipton, Mevin B. Hooten, Connor Nolan, Robert K. Booth, Jason McLachlan. Source: The Annals of Applied Statistics, Volume 13, Number 4, 2363--2388.Abstract: Multivariate compositional count data arise in many applications including ecology, microbiology, genetics and paleoclimate. A frequent question in the analysis of multivariate compositional count data is what underlying values of a covariate(s) give rise to the observed composition. Learning the relationship between covariates and the compositional count allows for inverse prediction of unobserved covariates given compositional count observations. Gaussian processes provide a flexible framework for modeling functional responses with respect to a covariate without assuming a functional form. Many scientific disciplines use Gaussian process approximations to improve prediction and make inference on latent processes and parameters. When prediction is desired on unobserved covariates given realizations of the response variable, this is called inverse prediction. Because inverse prediction is often mathematically and computationally challenging, predicting unobserved covariates often requires fitting models that are different from the hypothesized generative model. We present a novel computational framework that allows for efficient inverse prediction using a Gaussian process approximation to generative models. Our framework enables scientific learning about how the latent processes co-vary with respect to covariates while simultaneously providing predictions of missing covariates. The proposed framework is capable of efficiently exploring the high dimensional, multi-modal latent spaces that arise in the inverse problem. To demonstrate flexibility, we apply our method in a generalized linear model framework to predict latent climate states given multivariate count data. Based on cross-validation, our model has predictive skill competitive with current methods while simultaneously providing formal, statistical inference on the underlying community dynamics of the biological system previously not available. Full Article
composition Frequency domain theory for functional time series: Variance decomposition and an invariance principle By projecteuclid.org Published On :: Mon, 27 Apr 2020 04:02 EDT Piotr Kokoszka, Neda Mohammadi Jouzdani. Source: Bernoulli, Volume 26, Number 3, 2383--2399.Abstract: This paper is concerned with frequency domain theory for functional time series, which are temporally dependent sequences of functions in a Hilbert space. We consider a variance decomposition, which is more suitable for such a data structure than the variance decomposition based on the Karhunen–Loéve expansion. The decomposition we study uses eigenvalues of spectral density operators, which are functional analogs of the spectral density of a stationary scalar time series. We propose estimators of the variance components and derive convergence rates for their mean square error as well as their asymptotic normality. The latter is derived from a frequency domain invariance principle for the estimators of the spectral density operators. This principle is established for a broad class of linear time series models. It is a main contribution of the paper. Full Article
composition Noncommutative Lebesgue decomposition and contiguity with applications in quantum statistics By projecteuclid.org Published On :: Mon, 27 Apr 2020 04:02 EDT Akio Fujiwara, Koichi Yamagata. Source: Bernoulli, Volume 26, Number 3, 2105--2142.Abstract: We herein develop a theory of contiguity in the quantum domain based upon a novel quantum analogue of the Lebesgue decomposition. The theory thus formulated is pertinent to the weak quantum local asymptotic normality introduced in the previous paper [Yamagata, Fujiwara, and Gill, Ann. Statist. 41 (2013) 2197–2217], yielding substantial enlargement of the scope of quantum statistics. Full Article
composition Cellular Composition and Three-Dimensional Organization of the Subventricular Germinal Zone in the Adult Mammalian Brain By www.jneurosci.org Published On :: 1997-07-01 Fiona DoetschJul 1, 1997; 17:5046-5061Articles Full Article
composition Effects of Recombinant Human Prolactin on Breast Milk Composition By pediatrics.aappublications.org Published On :: 2011-01-24T04:00:56-08:00 The direct effects of prolactin on the nutritional and antimicrobial composition of breast milk have not been examined previously in women. The study demonstrates that recombinant human prolactin increases milk volume, induces changes in milk composition consistent with those during normal lactogenesis, and increases antimicrobially active oligosaccharide concentrations. The data suggest that prolactin is an important mediator of normal lactogenesis. (Read the full article) Full Article
composition Factors Influencing the Composition of the Intestinal Microbiota in Early Infancy By pediatrics.aappublications.org Published On :: 2006-08-01 John PendersAug 1, 2006; 118:511-521ARTICLES Full Article
composition Prokaryotic and Viral Community Composition of Freshwater Springs in Florida, USA By mbio.asm.org Published On :: 2020-04-07T01:31:16-07:00 ABSTRACT Aquifers, which are essential underground freshwater reservoirs worldwide, are understudied ecosystems that harbor diverse forms of microbial life. This study investigated the abundance and composition of prokaryotic and viral communities in the outflow of five springs across northern Florida, USA, as a proxy of microbial communities found in one of the most productive aquifers in the world, the Floridan aquifer. The average abundances of virus-like particles and prokaryotic cells were slightly lower than those reported from other groundwater systems, ranging from 9.6 x 103 ml–1 to 1.1 x 105 ml–1 and 2.2 x 103 ml–1 to 3.4 x 104 ml–1, respectively. Despite all of the springs being fed by the Floridan aquifer, sequencing of 16S rRNA genes and viral metagenomes (viromes) revealed unique communities in each spring, suggesting that groundwater microbial communities are influenced by land usage in recharge zones. The prokaryotic communities were dominated by Bacteria, and though the most abundant phyla (Proteobacteria, Cyanobacteria, and Bacteroidetes) were found in relatively high abundance across springs, variation was seen at finer taxonomic resolution. The viral sequences were most similar to those described from other aquatic environments. Sequencing resulted in the completion of 58 novel viral genomes representing members of the order Caudovirales as well as prokaryotic and eukaryotic single-stranded DNA (ssDNA) viruses. Sequences similar to those of ssDNA viruses were detected at all spring sites and dominated the identifiable sequences at one spring site, showing that these small viruses merit further investigation in groundwater systems. IMPORTANCE Aquifer systems may hold up to 40% of the total microbial biomass on Earth. However, little is known about the composition of microbial communities within these critical freshwater ecosystems. Here, we took advantage of Florida’s first-magnitude springs (the highest spring classification based on water discharge), each discharging at least 246 million liters of water each day from the Floridan aquifer system (FAS), to investigate prokaryotic and viral communities from the aquifer. The FAS serves as a major source of potable water in the Southeastern United States, providing water for large cities and citizens in three states. Unfortunately, the health of the FAS and its associated springs has declined in the past few decades due to nutrient loading, increased urbanization and agricultural activity in aquifer recharge zones, and saltwater intrusion. This is the first study to describe the prokaryotic and viral communities in Florida’s first-magnitude springs, providing a baseline against which to compare future ecosystem change. Full Article
composition The WblC/WhiB7 Transcription Factor Controls Intrinsic Resistance to Translation-Targeting Antibiotics by Altering Ribosome Composition By mbio.asm.org Published On :: 2020-04-14T01:31:22-07:00 ABSTRACT Bacteria that encounter antibiotics can efficiently change their physiology to develop resistance. This intrinsic antibiotic resistance is mediated by multiple pathways, including a regulatory system(s) that activates specific genes. In some Streptomyces and Mycobacterium spp., the WblC/WhiB7 transcription factor is required for intrinsic resistance to translation-targeting antibiotics. Wide conservation of WblC/WhiB7 within Actinobacteria indicates a critical role of WblC/WhiB7 in developing resistance to such antibiotics. Here, we identified 312 WblC target genes in Streptomyces coelicolor, a model antibiotic-producing bacterium, using a combined analysis of RNA sequencing and chromatin immunoprecipitation sequencing. Interestingly, WblC controls many genes involved in translation, in addition to previously identified antibiotic resistance genes. Moreover, WblC promotes translation rate during antibiotic stress by altering the ribosome-associated protein composition. Our genome-wide analyses highlight a previously unappreciated antibiotic resistance mechanism that modifies ribosome composition and maintains the translation rate in the presence of sub-MIC levels of antibiotics. IMPORTANCE The emergence of antibiotic-resistant bacteria is one of the top threats in human health. Therefore, we need to understand how bacteria acquire resistance to antibiotics and continue growth even in the presence of antibiotics. Streptomyces coelicolor, an antibiotic-producing soil bacterium, intrinsically develops resistance to translation-targeting antibiotics. Intrinsic resistance is controlled by the WblC/WhiB7 transcription factor that is highly conserved within Actinobacteria, including Mycobacterium tuberculosis. Here, identification of the WblC/WhiB7 regulon revealed that WblC/WhiB7 controls ribosome maintenance genes and promotes translation in the presence of antibiotics by altering the composition of ribosome-associated proteins. Also, the WblC-mediated ribosomal alteration is indeed required for resistance to translation-targeting antibiotics. This suggests that inactivation of the WblC/WhiB7 regulon could be a potential target to treat antibiotic-resistant mycobacteria. Full Article
composition Subtle Variations in Dietary-Fiber Fine Structure Differentially Influence the Composition and Metabolic Function of Gut Microbiota By msphere.asm.org Published On :: 2020-05-06T07:29:31-07:00 ABSTRACT The chemical structures of soluble fiber carbohydrates vary from source to source due to numerous possible linkage configurations among monomers. However, it has not been elucidated whether subtle structural variations might impact soluble fiber fermentation by colonic microbiota. In this study, we tested the hypothesis that subtle structural variations in a soluble polysaccharide govern the community structure and metabolic output of fermenting microbiota. We performed in vitro fecal fermentation studies using arabinoxylans (AXs) from different classes of wheat (hard red spring [AXHRS], hard red winter [AXHRW], and spring red winter [AXSRW]) with identical initial microbiota. Carbohydrate analyses revealed that AXSRW was characterized by a significantly shorter backbone and increased branching compared with those of the hard varieties. Amplicon sequencing demonstrated that fermentation of AXSRW resulted in a distinct community structure of significantly higher richness and evenness than those of hard-AX-fermenting cultures. AXSRW favored OTUs within Bacteroides, whereas AXHRW and AXHRS favored Prevotella. Accordingly, metabolic output varied between hard and soft varieties; higher propionate production was observed with AXSRW and higher butyrate and acetate with AXHRW and AXHRS. This study showed that subtle changes in the structure of a dietary fiber may strongly influence the composition and function of colonic microbiota, further suggesting that physiological functions of dietary fibers are highly structure dependent. Thus, studies focusing on interactions among dietary fiber, gut microbiota, and health outcomes should better characterize the structures of the carbohydrates employed. IMPORTANCE Diet, especially with respect to consumption of dietary fibers, is well recognized as one of the most important factors shaping the colonic microbiota composition. Accordingly, many studies have been conducted to explore dietary fiber types that could predictably manipulate the colonic microbiota for improved health. However, the majority of these studies underappreciate the vastness of fiber structures in terms of their microbial utilization and omit detailed carbohydrate structural analysis. In some cases, this causes conflicting results to arise between studies using (theoretically) the same fibers. In this investigation, by performing in vitro fecal fermentation studies using bran arabinoxylans obtained from different classes of wheat, we showed that even subtle changes in the structure of a dietary fiber result in divergent microbial communities and metabolic outputs. This underscores the need for much higher structural resolution in studies investigating interactions of dietary fibers with gut microbiota, both in vitro and in vivo. Full Article
composition Investigating the Effects of the Chemical Composition on Glass Corrosion: A Case Study for Type I Vials By journal.pda.org Published On :: 2020-04-09T09:40:03-07:00 Glass is the favorite material for parenteral packaging because of its physico-chemical properties. Type I borosilicate glass is worldwide use at this scope, but it may have some issues related to breakage, corrosion and delamination that might compromise the drug quality, safety and efficacy. These issues can be mitigated and avoided starting from the appropriate selection of the most suitable raw material at the early stage of the glass container design. In this study, Type I borosilicate glass vials manufactured using two glass tubes having different chemical compositions, were studied and compared in terms of their resistance to corrosion. Testing design was applied with the aim to select the best practice approach comparing different storage simulation conditions: ageing treatment through autoclaving and stability testing (real-time and accelerated). Clear differences were found between the different glass types in terms of hydrolytic and corrosion resistance that highlighted the relation between chemical composition and glass chemical durability. Non-negligible differences were also observed using different storage conditions. Full Article
composition Exercise and Muscle Lipid Content, Composition, and Localization: Influence on Muscle Insulin Sensitivity By diabetes.diabetesjournals.org Published On :: 2020-04-20T12:00:34-07:00 Accumulation of lipid in skeletal muscle is thought to be related to the development of insulin resistance and type 2 diabetes. Initial work in this area focused on accumulation of intramuscular triglyceride; however, bioactive lipids such as diacylglycerols and sphingolipids are now thought to play an important role. Specific species of these lipids appear to be more negative toward insulin sensitivity than others. Adding another layer of complexity, localization of lipids within the cell appears to influence the relationship between these lipids and insulin sensitivity. This article summarizes how accumulation of total lipids, specific lipid species, and localization of lipids influence insulin sensitivity in humans. We then focus on how these aspects of muscle lipids are impacted by acute and chronic aerobic and resistance exercise training. By understanding how exercise alters specific species and localization of lipids, it may be possible to uncover specific lipids that most heavily impact insulin sensitivity. Full Article
composition Different Effects of Soil Fertilization on Bacterial Community Composition in the Penicillium canescens Hyphosphere and in Bulk Soil [Environmental Microbiology] By aem.asm.org Published On :: 2020-05-05T08:00:35-07:00 This study investigated the effects of long-term soil fertilization on the composition and potential for phosphorus (P) and nitrogen (N) cycling of bacterial communities associated with hyphae of the P-solubilizing fungus Penicillium canescens. Using a baiting approach, hyphosphere bacterial communities were recovered from three soils that had received long-term amendment in the field with mineral or mineral plus organic fertilizers. P. canescens hyphae recruited bacterial communities with a decreased diversity and an increased abundance of Proteobacteria relative to what was observed in soil communities. As core bacterial taxa, Delftia and Pseudomonas spp. were present in all hyphosphere samples irrespective of soil fertilization. However, the type of fertilization showed significant impacts on the diversity, composition, and distinctive taxa/operational taxonomic units (OTUs) of hyphosphere communities. The soil factors P (Olsen method), exchangeable Mg, exchangeable K, and pH were important for shaping soil and hyphosphere bacterial community compositions. An increased relative abundance of organic P metabolism genes was found in hyphosphere communities from soil that had not received P fertilizers, which could indicate P limitation near the fungal hyphae. Additionally, P. canescens hyphae recruited bacterial communities with a higher abundance of N fixation genes than found in soil communities, which might imply a role of hyphosphere communities for fungal N nutrition. Furthermore, the relative abundances of denitrification genes were greater in several hyphosphere communities, indicating an at least partly anoxic microenvironment with a high carbon-to-N ratio around the hyphae. In conclusion, soil fertilization legacy shapes P. canescens hyphosphere microbiomes and their functional potential related to P and N cycling. IMPORTANCE P-solubilizing Penicillium strains are introduced as biofertilizers to agricultural soils to improve plant P nutrition. Currently, little is known about the ecology of these biofertilizers, including their interactions with other soil microorganisms. This study shows that communities dominated by Betaproteobacteria and Gammaproteobacteria colonize P. canescens hyphae in soil and that the compositions of these communities depend on the soil conditions. The potential of these communities for N and organic P cycling is generally higher than that of soil communities. The high potential for organic P metabolism might complement the ability of the fungus to solubilize inorganic P, and it points to the hyphosphere as a hot spot for P metabolism. Furthermore, the high potential for N fixation could indicate that P. canescens recruits bacteria that are able to improve its N nutrition. Hence, this community study identifies functional groups relevant for the future optimization of next-generation biofertilizer consortia for applications in soil. Full Article
composition Circulating Immune Cell Composition and Cancer Risk: A Prospective Study Using Epigenetic Cell Count Measures By cancerres.aacrjournals.org Published On :: 2020-05-04T05:35:17-07:00 Although ample evidence indicates that immune cell homeostasis is an important prognostic outcome determinant in patients with cancer, few studies have examined whether it also determines cancer risk among initially healthy individuals. We performed a case–cohort study including incident cases of breast (n = 207), colorectal (n = 111), lung (n = 70), and prostate (n = 201) cancer as well as a subcohort (n = 465) within the European Prospective Investigation into Cancer and Nutrition-Heidelberg cohort. Relative counts of neutrophils, monocytes, and lymphocyte sublineages were measured by qRT-PCR. HRs and 95% confidence intervals were used to measure the associations between relative counts of immune cell and cancer risks. When relative counts of immune cell types were taken individually, a significant positive association was observed between relative counts of FOXP3+ regulatory T cells (Tregs) and lung cancer risk, and significant inverse associations were observed between relative CD8+ counts and risks of lung and breast cancer (overall and ER+ subtype). Multivariable models with mutual adjustments across immune markers showed further significant positive associations between higher relative FOXP3+ T-cell counts and increased risks of colorectal and breast cancer (overall and ER− subtype). No associations were found between immune cell composition and prostate cancer risk. These results affirm the relevance of elevated FOXP3+ Tregs and lower levels of cytotoxic (CD8+) T cells as risk factors for tumor development.Significance:This epidemiologic study supports a role for both regulatory and cytotoxic T cells in determining cancer risk among healthy individuals.See related commentary by Song and Tworoger, p. 1801 Full Article
composition Is Histologic Thrombus Composition in Acute Stroke Linked to Stroke Etiology or to Interventional Parameters? [INTERVENTIONAL] By www.ajnr.org Published On :: 2020-04-09T06:30:48-07:00 BACKGROUND AND PURPOSE: Detailed insight into the composition of thrombi retrieved from patients with ischemic stroke by mechanical thrombectomy might improve pathophysiologic understanding and therapy. Thus, this study searched for links between histologic thrombus composition and stroke subtypes and mechanical thrombectomy results. MATERIALS AND METHODS: Thrombi from 85 patients who had undergone mechanical thrombectomy for acute ischemic stroke between December 2016 and March 2018 were studied retrospectively. Thrombi were examined histologically. Preinterventional imaging features, stroke subtypes, and interventional parameters were re-analyzed. Statistical analysis was performed with the Kruskal-Wallis test, Mann-Whitney U test, or Spearman correlation as appropriate. RESULTS: Cardioembolic thrombi had a higher percentage of macrophages and a tendency toward more platelets than thrombi of large-artery atherosclerotic stenosis (P = .021 and .003) or the embolic stroke of undetermined source (P = .037 and .099) subtype. Thrombi prone to fragmentation required the combined use of contact aspiration and stent retrieval (P = .021) and were associated with an increased number of retrieving maneuvers (P = .001), longer procedural times (P = .001), and a higher lymphocyte content (P = .035). CONCLUSIONS: We interpreted the higher macrophage and platelet content in cardioembolic thrombi compared with large-artery atherosclerotic stenosis or embolic stroke of undetermined source thrombi as an indication that the latter type might be derived from an atherosclerotic plaque rather than from an undetermined cardiac source. The extent of thrombus fragmentation was associated with a more challenging mechanical thrombectomy and a higher lymphocyte content of the thrombi. Thus, thrombus fragmentation not only might be caused by the recanalization procedure but also might be a feature of a lymphocyte-rich, difficult-to-retrieve subgroup of thrombi. Full Article
composition Cholesterol lowering drugs linked to improved gut bacteria composition in obese people By www.sciencedaily.com Published On :: Wed, 06 May 2020 13:36:39 EDT Obese Europeans who are treated with cholesterol lowering drugs have not only lower values of blood LDL cholesterol and markers of inflammation but in addition a more healthy gut bacteria profile than those obese who are not prescribed statins. Full Article
composition 'Alien comet' visitor has weird composition By news.yahoo.com Published On :: Tue, 21 Apr 2020 05:43:07 -0400 The first known comet to visit us from another star system has an unusual make-up. Full Article
composition Composition-dependent thermodynamics of intracellular phase separation By feeds.nature.com Published On :: 2020-05-06 Full Article
composition Formation of liquid-like cellular organelles depends on their composition By feeds.nature.com Published On :: 2020-05-06 Full Article
composition Publisher Correction: Intensive farming drives long-term shifts in avian community composition By feeds.nature.com Published On :: 2020-05-08 Full Article
composition Today's market composition doesn't reflect who is leading the rally, fund manager says By www.cnbc.com Published On :: Wed, 06 May 2020 07:49:43 GMT Guy de Blonay, fund manager for global equities at Jupiter Asset Management, discusses investing amid the coronavirus crisis. Full Article
composition Rcm on composition By feedproxy.google.com Published On :: Sat, 9 May 2020 15:39:21 GMT If a registered party purchase from composition party. is RCM applicable? Full Article
composition RCM on composition scheme By feedproxy.google.com Published On :: Sat, 9 May 2020 15:47:40 GMT If a regular party purchase from composition party, does RCM applicable ? Full Article
composition What explains the volume and composition of trade? Industrial evidence from a panel of countries By dx.doi.org Published On :: Mon, 23 Jun 2014 09:00:00 GMT This paper quantifies the importance of different determinants of trade at the industry level using a sample of 54 OECD and non-OECD economies. The empirical methodology extends the approach of previous empirical studies to explicitly quantify the impact that trading partners’ factor endowments and policies have on bilateral trade, and to analyse the effect of tariffs on the volume and composition of trade. Full Article
composition Deconstructing income inequality in Costa Rica: an income source decomposition approach By dx.doi.org Published On :: Tue, 07 Mar 2017 02:00:00 GMT Despite an improvement in overall macroeconomic performance in Costa Rica, income inequality has risen and is currently at its maximum historical value. Full Article
composition Exhaust from commercial container ships crossing the Atlantic Ocean alter cloud composition By Published On :: Wed, 25 Mar 2020 21:32:08 +0000 Researchers from the University of Washington have found that emissions from container ships and other commercial vessels form dense clouds that reflect solar radiation and mask global warming. Full Article
composition [ASAP] Unveiling Nanoscale Compositional and Structural Heterogeneities of Highly Textured Mg<sub>0.7</sub>Ti<sub>0.3</sub>H<sub><italic toggle="yes">y</italic></sub> Thin Films By feedproxy.google.com Published On :: Thu, 07 May 2020 04:00:00 GMT Inorganic ChemistryDOI: 10.1021/acs.inorgchem.0c00059 Full Article
composition [ASAP] Synthesis of 3-<italic toggle="yes">O</italic>-Sulfated Disaccharide and Tetrasaccharide Standards for Compositional Analysis of Heparan Sulfate By feedproxy.google.com Published On :: Wed, 23 Oct 2019 04:00:00 GMT BiochemistryDOI: 10.1021/acs.biochem.9b00838 Full Article
composition [ASAP] Structural and Functional Adaptability of Sucrose and Lactose Permeases from <italic toggle="yes">Escherichia coli</italic> to the Membrane Lipid Composition By feedproxy.google.com Published On :: Thu, 07 May 2020 04:00:00 GMT BiochemistryDOI: 10.1021/acs.biochem.0c00174 Full Article
composition Wild Fruits [Electronic book] : composition, nutritional value and products / Abdalbasit Adam Mariod, editor. By encore.st-andrews.ac.uk Published On :: Cham : Springer, c2019. Full Article
composition Composition, phosphorylation and dynamic organization of photosynthetic protein complexes in plant thylakoid membrane By feeds.rsc.org Published On :: Photochem. Photobiol. Sci., 2020, Advance ArticleDOI: 10.1039/D0PP00025F, Perspective Open Access   This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Marjaana Rantala, Sanna Rantala, Eva-Mari AroHere we present an overview of the composition and organization of photosynthetic protein complexes in thylakoid membrane and discuss the consequences of the light-induced protein network re-organization to the thylakoid membrane ultrastructure.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry Full Article
composition Chinese herbal formulas : treatment principles and composition strategies / Yifan Yang ; foreword by Jeremy Ross By prospero.murdoch.edu.au Published On :: Yang, Yifan Full Article
composition Composition, crystallography, and oxygen vacancy ordering impacts on the oxygen ion conductivity of lanthanum strontium ferrite By feeds.rsc.org Published On :: Phys. Chem. Chem. Phys., 2020, 22,9723-9733DOI: 10.1039/D0CP00206B, PaperTridip Das, Jason D. Nicholas, Yue QiThe oxygen conductivity map for LSF illustrates the impact of aliovalent doping, crystal structure, and oxygen vacancy interactions on conductivity.The content of this RSS Feed (c) The Royal Society of Chemistry Full Article
composition Changes in latent fingermark glyceride composition as a function of sample age using UPLC-IMS-QToF-MSE By feeds.rsc.org Published On :: Analyst, 2020, Accepted ManuscriptDOI: 10.1039/D0AN00379D, PaperAmanda Frick, Natalie Kummer, Ana Moraleda, Celine WeyermannThe composition of fingermark residue has been an important topic in forensic science, mainly in efforts to better understand and eventually improve the efficacy of latent fingermark detection methods. While...The content of this RSS Feed (c) The Royal Society of Chemistry Full Article
composition The viewpoints book : a practical guide to viewpoints and composition / Anne Bogart and Tina Landau By prospero.murdoch.edu.au Published On :: Bogart, Anne, 1951- author Full Article
composition 16 Levels of Piano Composition: Easy to Complex By www.wired.com Published On :: Mon, 01 Jul 2019 16:00:00 +0000 Pianist and composer Nahre Sol attempts to play "Happy Birthday" in 16 levels of complexity. Nahre starts playing the iconic tune with just one finger and adds more and more layers until she's playing it with extended harmonies, elongated melodies and staggered leaps. Watch and see how it all comes together! Full Article
composition Rapid determination of Ba isotope compositions for barites using H2O-extraction method and MC-ICP-MS By feeds.rsc.org Published On :: J. Anal. At. Spectrom., 2020, Accepted ManuscriptDOI: 10.1039/D0JA00078G, PaperLan-Lan Tian, Ying-Zeng Gong, Wei Wei, Jin-Ting Kang, Hui-Min Yu, Fang HuangThis study presents a rapid and simple method of high precision Ba isotope measurement for barite using H2O extraction. The main challenge for analyzing Ba isotope composition of barite is...The content of this RSS Feed (c) The Royal Society of Chemistry Full Article
composition High performance method for the accurate and precise determination of silicon isotopic compositions in bulk silicate rock samples using laser ablation MC-ICP-MS By feeds.rsc.org Published On :: J. Anal. At. Spectrom., 2020, Accepted ManuscriptDOI: 10.1039/D0JA00036A, PaperChenxi Zhang, He Zhao, Wen Zhang, Tao Luo, Ming Li, Keqing Zong, Yongsheng Liu, Zhaochu HuMC-ICP-MS has become one of the most powerful analytical methods for Si isotopes in bulk liquid and solid samples in the past decade. Laser ablation provides direct sampling of solid...The content of this RSS Feed (c) The Royal Society of Chemistry Full Article
composition Synchronous surface and bulk composition management for red-shifted light absorption and suppressed interfacial recombination in perovskite solar cells By pubs.rsc.org Published On :: J. Mater. Chem. A, 2020, Advance ArticleDOI: 10.1039/D0TA02449J, PaperJun-Xing Zhong, Jin-Feng Liao, Yong Jiang, Lianzhou Wang, Dai-Bin Kuang, Wu-Qiang WuPerovskite solar cells with a reverse vertical gradient distribution of α/δ-FAPbI3 achieved a record efficiency of up to 21.9% owing to synergistic advantages of expanded photon harvesting and robust surface defect passivation.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry Full Article
composition Sufficient trouble: compositions for computer, live instruments, and voice / Brian Belet By library.mit.edu Published On :: Sun, 7 Jul 2019 08:02:16 EDT MEDIA PhonCD B411 sel Full Article
composition [ASAP] Hidden Boron Catalysis: Nucleophile-Promoted Decomposition of HBpin By feedproxy.google.com Published On :: Thu, 07 May 2020 04:00:00 GMT Organic LettersDOI: 10.1021/acs.orglett.0c01168 Full Article
composition Gesamtausgabe der Compositionen By reader.digitale-sammlungen.de Published On :: Mon, 27 Apr 2020 13:12:02 +0100 Autor: Georg V., Hannover, König, 1819-1878 Erschienen 1860 BSB-Signatur 4 Mus.pr. 45878-2 URN: urn:nbn:de:bvb:12-bsb11148999-7 URL: http://reader.digitale-sammlungen.de/de/fs1/object/display/bsb11148999_00001.html/ Full Article
composition Gesamtausgabe der Compositionen By reader.digitale-sammlungen.de Published On :: Mon, 27 Apr 2020 13:12:02 +0100 Autor: Georg V., Hannover, König, 1819-1878 Erschienen 1860 BSB-Signatur 4 Mus.pr. 45878-4 URN: urn:nbn:de:bvb:12-bsb11149001-6 URL: http://reader.digitale-sammlungen.de/de/fs1/object/display/bsb11149001_00001.html/ Full Article
composition Gesamtausgabe der Compositionen By reader.digitale-sammlungen.de Published On :: Mon, 27 Apr 2020 13:12:02 +0100 Autor: Georg V., Hannover, König, 1819-1878 Erschienen 1860 BSB-Signatur 4 Mus.pr. 45878-3 URN: urn:nbn:de:bvb:12-bsb11149000-0 URL: http://reader.digitale-sammlungen.de/de/fs1/object/display/bsb11149000_00001.html/ Full Article
composition Gesamtausgabe der Compositionen By reader.digitale-sammlungen.de Published On :: Tue, 28 Apr 2020 13:12:02 +0100 Autor: Georg V., Hannover, König, 1819-1878 Erschienen 1860 BSB-Signatur 4 Mus.pr. 45878-1 URN: urn:nbn:de:bvb:12-bsb11148998-8 URL: http://reader.digitale-sammlungen.de/de/fs1/object/display/bsb11148998_00001.html/ Full Article
composition Remote sensing of atmospheric aerosol composition and species / Zhengqiang Li, Yisong Xie, Ying Zhang, and Lei Li By library.mit.edu Published On :: Sun, 10 Nov 2019 06:23:13 EST Online Resource Full Article
composition Theoretical study of hydroxyl radical (OH˙) induced decomposition of tert-butyl methyl ether (MTBE) By feeds.rsc.org Published On :: Environ. Sci.: Processes Impacts, 2020, 22,1037-1044DOI: 10.1039/C9EM00588A, PaperBassam S. Tawabini, Ole John Nielsen, Theis I. SøllingWe have characterized the various pathways for OH radical (OH˙) induced decomposition of tert-butyl methyl ether (MTBE) and found an oxidative pathway that leads to complete degradation under the prerequisite that OH radicals are present in excess.The content of this RSS Feed (c) The Royal Society of Chemistry Full Article
composition Cooking and electronic cigarettes leading to large differences between indoor and outdoor particle composition and concentration measured by aerosol mass spectrometry By feeds.rsc.org Published On :: Environ. Sci.: Processes Impacts, 2020, Accepted ManuscriptDOI: 10.1039/D0EM00061B, Paper Open Access   This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Yuliya Omelekhina, Axel Eriksson, Francesco Canonaco, Andre Prevot, Patrik Nilsson, Christina Isaxon, Joakim Pagels, Aneta WierzbickaWe spend about two thirds of our time in private homes where airborne particles of indoor and outdoor origins are present. The negative health effects of exposure to outdoor particles...The content of this RSS Feed (c) The Royal Society of Chemistry Full Article